Camera module and terminal equipment

Abstract

The invention discloses a camera module, and the module is characterized in that the module comprises a housing which is internally provided with a first cavity, and the first cavity is provided with a first wall part; a movable lens whose optical axis is parallel to the first wall portion; a lens carrier on which the movable lens is mounted, the lens carrier being constrained inside the first chamber so as to be movable along the optical axis of the movable lens, and the lens carrier having a second wall portion opposite the first wall portion; the supporting piece comprises a first reinforcing plate which is at least partially embedded in the first wall part; moreover, a supporting and guiding mechanism is arranged between the lens carrier and the supporting piece, the supporting and guiding mechanism comprises a first guiding part arranged on the second wall part and a second guiding part integrally formed on the first reinforcing plate, and the second guiding part is exposed out of the surface of the first wall part. And the first guide part and / or the second guide part are / is arranged along the direction parallel to the optical axis of the movable lens. The invention also discloses a terminal device applying the camera module.

Description

Technical Field

[0001] The present invention relates to a lens module, in particular to a camera module, and also to a terminal device using the camera module. Background Art

[0002] As living standards improve, consumers have higher and higher requirements for the camera functions of mobile phones, tablets and other terminal devices. They not only require the realization of background blur, night shooting and other effects, but also put forward requirements for telephoto. Consumers need terminal devices that can clearly capture distant scenes. In order to achieve the telephoto function, telephoto camera modules with telephoto lenses have begun to be introduced in terminal devices.

[0003] Since telephoto lenses usually have a long total optical length, it is difficult to put telephoto lenses into thin terminal devices according to the conventional camera module assembly method. Currently, in the market, by setting light deflection elements such as prisms or reflectors in the camera module, the optical system of the telephoto camera module is folded to make it a periscope camera module, so that it can be placed horizontally in the mobile phone, solving the problem of the telephoto camera module being too high due to the long total optical length of the telephoto lens.

[0004] Whether it is a conventional camera module or a periscope camera module, an existing camera module generally includes important components such as a photosensitive component, an optical lens, and a lens motor. Among them, the lens motor, as the actuator of the camera module, mainly includes a housing, a lens carrier movably constrained to the housing, and a driving mechanism. The lens carrier is used for mounting the optical lens thereon, and the driving mechanism is used to drive the lens carrier to move relative to the photosensitive component along the optical axis of the optical lens to realize the camera module's autofocus, zoom, and anti-shake functions, thereby enabling the camera module to have better imaging performance.

[0005] In the process of the driving mechanism driving the lens carrier to move, in order to guide the moving trajectory of the lens carrier and to support the lens carrier and the optical lens, some camera modules will set two sets of parallel support and guide mechanisms between the lens carrier and the housing. The support and guide mechanism has two types: guide rod type and ball type. Among them, the guide rod type support and guide mechanism usually includes a guide rod inserted in the housing, and a guide groove (or guide hole) opened in the lens carrier and matched with the guide rod, while the ball type support and guide mechanism includes a guide groove opened in the housing and / or the lens carrier, and a ball constrained in the guide groove. The two sets of parallel support and guide mechanisms can both be guide rod type or ball type, or a combination of a guide rod type and a ball type.

[0006] Although the guide rod type support and guide mechanism has advantages in long-stroke guidance, the production process of the camera module is complicated because the guide rod needs to be processed first and then inserted into the mounting hole or mounting groove of the housing when assembling the guide rod and the housing. In addition, the housing material in the prior art is usually plastic. In order to improve the bearing performance of the housing, a rigid reinforcement plate such as a metal plate is set at the bottom of the housing, but the assembly of the reinforcement plate and the assembly of the support and guide mechanism need to be performed separately, which also makes the production process of the camera module complicated and the production efficiency low.

[0007] Moreover, no matter which type of support and guide mechanism is used, there will inevitably be processing errors in the guide rods or ball bearings between the two sets of support and guide mechanisms. The injection-molded shell is also prone to variations such as structural warping after curing. The accumulation of such errors will cause the parallelism of the two sets of support and guide mechanisms to be larger (usually more than 5'), causing the lens carrier to shift relative to the photosensitive component during movement, thereby affecting the tilt of the camera module and ultimately affecting the imaging quality of the camera module.

[0008] In addition, the cross-section of the guide rail or ball is usually a complete circle, and the injection molded shell itself also has a minimum molding height (usually above 0.15 mm), which results in a thicker thickness of the camera module, which is not conducive to the miniaturization design of the camera module. Summary of the invention

[0009] One advantage of the present invention is that it provides a camera module that can simplify the assembly process and improve assembly efficiency.

[0010] Another advantage of the present invention is that it provides a camera module, which can save raw materials and reduce raw material costs.

[0011] Another advantage of the present invention is that it provides a camera module that is thinner, or allows for the installation of a larger driving mechanism.

[0012] Another advantage of the present invention is that it provides a camera module in which the movement of the optical element is not prone to distortion.

[0013] Another advantage of the present invention is that it provides a camera module using the aforementioned camera module, which is a periscope camera module with an optical image stabilization function.

[0014] Another advantage of the present invention is to provide a terminal device using the aforementioned camera module.

[0015] In order to achieve at least one of the above advantages or other advantages and purposes, the present invention provides a camera module, characterized in that it includes: a shell having a first chamber inside, the first chamber having a first wall portion; a movable lens, whose optical axis is parallel to the first wall portion; a lens carrier for the movable lens to be mounted thereon, the lens carrier being constrained in the interior of the first chamber in a manner that it can move along the optical axis of the movable lens, and the lens carrier having a second wall portion opposite to the first wall portion; a support member including a first reinforcement plate at least partially embedded in the first wall portion; and a support guide mechanism is provided between the lens carrier and the support member, the support guide mechanism including a first guide portion provided on the second wall portion and a second guide portion integrally formed on the first reinforcement plate, the second guide portion being exposed on the surface of the first wall portion, and the first guide portion and / or the second guide portion being arranged in a direction parallel to the optical axis of the movable lens.

[0016] There is no limit on the number of movable lenses, which can be set according to the imaging function of the camera module. If only the focus function needs to be realized and the camera module is required to be small in size, only one group of movable lenses is set; if the zoom function needs to be realized, multiple groups of movable lenses can be set in the optical axis direction of the movable lens. It can be understood that the imaging quality of the camera module is related to the number of lenses in the lens, and the imaging quality of the camera module can be adjusted by increasing or decreasing the number of lenses.

[0017] The camera module partially reinforces the shell through the first reinforcement plate, guides the movement of the lens carrier and the movable lens through the support and guide mechanism, and also forms the second guide part integrally with the first reinforcement plate so that the assembly of the second guide part on the shell can be completed in the process of embedding the first reinforcement plate into the injection molding shell through the Insert Molding process, thereby simplifying two assembly processes into one assembly process, which can improve the assembly efficiency of the camera module. More importantly, since the support part is usually a rigid material with higher strength than the injection molding part, the second guide part is not easily deformed during the processing due to the curing of the injection molding part, so that the second guide part is more parallel to the optical axis of the movable lens, and the movable lens is not easily skewed during the movement, thereby reducing the assembly tilt of the camera module.

[0018] Furthermore, the first guide portion is a groove, the second guide portion is a guide rod slidably matched with the groove, and the first guide portion and the second guide portion both extend in a direction parallel to the optical axis of the movable lens.

[0019] Furthermore, the forming of the guide rod on the first reinforcing plate can be achieved through a milling process, which requires the first reinforcing plate to have a thicker wall thickness and more waste material is removed by milling, which will cause waste of the raw material of the first reinforcing plate. Therefore, in some embodiments of the present invention, the support member is made of metal, and the guide rod is bent from the position where the first reinforcing plate is located toward the lens carrier, so that the first reinforcing plate can be formed into the guide rod through a stamping process, which can reduce the generation of waste material, save the raw material of the first reinforcing plate, and thus save production costs.

[0020] In some embodiments of the present invention, the guide rod includes an arc segment whose cross section is an arc, and the central angle α corresponding to the arc is ≤180°. The cross section of the guide rod is designed to be an arc of no more than 180°. Compared with the guide rod whose cross section is a complete circle, the other half of the arc of the guide rod is omitted. In addition to saving the raw material of the guide rod, more importantly, the size of the guide rod in the direction perpendicular to the optical axis of the movable lens can be reduced, thereby reducing the size of the camera module, which is conducive to the miniaturization design of the camera module, or it can reduce the occupation of the internal space of the motor, allowing more installation space to be avoided for the motor drive mechanism, allowing the volume of the drive mechanism to be designed to be larger, so that the drive mechanism has a greater driving force, so that the motor travel focusing and zooming travel is longer.

[0021] In other embodiments of the present invention, the guide rod further includes a straight section connected to at least one end of the arc section. In this design, although there is an extra straight section, the straight section can buffer the stress generated when the first reinforcement plate is bent during stamping, so that the arc section is not easily deformed, thereby not easily affecting the contact between the inner wall of the groove of the movable carrier and the guide rod, and further not easily affecting the friction between the movable carrier and the guide rod.

[0022] In order to prevent the guide rod from deforming after being compressed, in some embodiments of the present invention, the first wall portion is provided with a filling portion filled inside the guide rod, so that the filling portion of the first wall portion can support the guide rod, thereby preventing the guide rod from being easily deformed after being compressed, and making the structure formed by the combination of the shell and the support member better supportive.

[0023] In some embodiments of the present invention, there are two guide rods, which are spaced apart on corresponding sides of the first reinforcement plate in a direction perpendicular to the optical axis of the movable lens. Accordingly, there are two groups of grooves, and the guide rods on the corresponding sides are inserted respectively, so that the force on the lens carrier in the direction perpendicular to the optical axis of the movable lens is more balanced. In addition, since the two guide rods are formed on the first reinforcement plate, the cumulative error can be reduced, thereby reducing the parallelism of the two guide rods. Both of these factors can prevent the lens carrier and the movable lens from being easily skewed due to deflection due to their own weight, thereby reducing the assembly tilt of the camera module and improving the imaging quality of the camera module. Between the two guide rods, the first reinforcement plate has a middle area and a peripheral area, the middle area is exposed to the first wall portion, and the peripheral area is covered by the first wall portion, so that the thickness of the first wall portion of the first chamber can be made smaller, or more avoidance space can be provided for the lens carrier, thereby reducing the overall thickness of the camera module.

[0024] Since the support member needs to be connected to the connecting material strip during the processing, in some embodiments of the present invention, the support member is provided with a connecting portion connected to the first reinforcement plate at the end adjacent to each guide rod, and the connecting portion is used to connect to the connecting material strip; and, in some embodiments of the present invention, during the stamping process of the guide rod, there is stress inside the support member, and this stress can easily cause the guide rod to deform, thereby affecting the parallelism of the two guide rods. Therefore, in the direction parallel to the optical axis of the movable lens, there is a gap between each connecting portion and the end of the guide rod at the corresponding end, thereby isolating the guide rod from the connecting portion in the direction parallel to the optical axis of the movable lens, avoiding deformation of the guide rod due to stress during the stamping process, thereby further reducing the parallelism of the two guide rods.

[0025] In some embodiments of the present invention, a first contact portion and a second contact portion are convexly provided on the inner wall of one groove, and a third contact portion is convexly provided on the inner wall of another groove. In a direction parallel to the optical axis of the movable lens, the first contact portion, the second contact portion and the third contact portion are spaced apart, and the third contact portion is correspondingly located between the first contact portion and the second contact portion. The first contact portion, the second contact portion and the third contact portion are all convexly provided on the inner wall of the corresponding groove.

[0026] In some embodiments of the present invention, a magnetic element is provided on the lens carrier, and the support member is a magnetic material; each groove has a first side opposite to its mouth, and a second side and a third side located between its mouth and the first side, the second side and the third side of each groove are relatively arranged in a direction perpendicular to the optical axis of the movable lens, and the second side of each groove is close to another groove, and the third side of each groove is far away from another groove; the first contact portion includes a first plane located on the first side of the corresponding groove and a first inclined surface located on the second side of the corresponding groove, and the first inclined surface gradually approaches the other groove in the direction of the corresponding groove; the second contact portion includes a second plane located on the first side of the corresponding groove and a second inclined surface located on the third side of the corresponding groove, and the second inclined surface gradually moves away from the other groove in the direction of the corresponding groove; the third contact portion includes a third inclined surface and a third plane located on the first side of the corresponding groove, the third inclined surface is located on the second side of the corresponding groove, and gradually approaches the other groove in the direction of the corresponding groove, or the third inclined surface is located on the third side of the corresponding groove, and gradually moves away from the other groove in the direction of the corresponding groove. Here, “the direction of the groove” refers to the direction of the mouth of the groove. If the mouth of the groove faces downward, the direction of the groove is downward.

[0027] In order to achieve better reinforcement effect of the first reinforcement plate and to make the guide rod easier to bend, in some embodiments of the present invention, the wall thickness of the first reinforcement plate is greater than the wall thickness of the guide rod, thereby improving the reliability of the camera module and making the camera module more anti-fall.

[0028] In some embodiments of the present invention, a second chamber is provided inside the shell, and further includes: a first carrier, which is constrained inside the second chamber in a manner that allows it to rotate around a first rotation axis; a second carrier, which is constrained to the first carrier in a manner that allows it to rotate around a second rotation axis, and the first rotation axis, the second rotation axis and the optical axis of the movable lens are orthogonal to each other; a light deflection element, which is mounted on the second carrier and is used to change the direction of incident light, and in the optical path, the light deflection element is located upstream of the movable lens; a photosensitive component, which is used to convert the received light signal into an electrical signal for imaging, and in the optical path, the photosensitive component is located downstream of the movable lens; in addition, if the optical axis of the movable lens is arranged in a horizontal direction, the first chamber has a bottom wall, and the bottom wall of the first chamber constitutes the first wall portion.

[0029] There is no restriction on the type of light redirecting element, as long as it can meet the requirement of changing the direction of light. Usually, in order to facilitate better regulation of the optical path, the light redirecting element can be a prism, a reflector or a beam splitter. There is no restriction on the angle between the optical axis of the incident light and the optical axis of the outgoing light of the light redirecting element, and a light redirecting element with an angle of 30°, 45°, 60° or 90° can be selected according to the actual installation environment requirements. More preferably, the angle between the optical axis of the incident light and the optical axis of the outgoing light of the light redirecting element is 90°. There is no restriction on the number of light redirecting elements, as long as it can meet the requirements of turning the imaging light so that the optical system of the camera module with a longer total optical length (TTL: Total Track Length) can be folded in the structural dimension. Accordingly, when the total optical length (TTL) of the camera module is too long, a larger number of light redirecting elements can be set to meet the size requirements of the camera module, for example, light redirecting elements can be set on both the object side and the image side of the camera module, or light redirecting elements can be set between multiple lenses of the camera module.

[0030] In some embodiments of the present invention, the second chamber has a third wall portion perpendicular to the first rotation axis, the third wall portion is provided with a central axis and a first guide groove surrounding the central axis, and a portion of the first reinforcement plate constitutes an inner wall in the first guide groove opposite to its mouth; the first carrier has a fourth wall portion opposite to the third wall portion, the fourth wall portion is provided with an axial hole for the central axis to be inserted, and at least two second guide grooves circumferentially spaced apart on the periphery of the axial hole, each second guide groove is arc-shaped, and each second guide groove and the first guide groove jointly constrain a first ball.

[0031] In order to reduce the risk of stray light of the camera module, in some embodiments of the present invention, the support member also includes a light blocking portion located between the movable lens and the photosensitive component on the optical path, and in the opposite direction of the optical axis of the movable lens, the projection of the light blocking portion on the lens carrier and / or the movable lens avoids the lens of the movable lens, and at least a part of the projection of the light blocking portion on the lens carrier falls on a side surface of the lens carrier adjacent to the exit end of the movable lens, and / or, at least a part of the projection of the light blocking portion on the movable lens falls on a side surface of the movable lens barrel adjacent to the exit end of the movable lens. More preferably, the surface of the light blocking portion can also enhance the diffuse reflection of the surface of the light blocking portion by laser atomization.

[0032] According to another aspect of the present invention, the present invention also provides a terminal device, characterized in that a camera module as described above is applied; the photosensitive component is arranged along the thickness direction of the terminal device, and the terminal device is one of a mobile phone, a tablet computer, a laptop computer, an e-book, a personal digital assistant, and a camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural diagram of the camera module in Example 1 of the present invention.

[0034] Figure 2 It is a top view of the camera module in Example 1 of the present invention.

[0035] Figure 3 yes Figure 2 A cross-sectional view of a camera module of the type shown in the figure along the AA direction.

[0036] Figure 4 yes Figure 2 A cross-sectional view of a camera module of the type shown in the figure in the BB direction.

[0037] Figure 5 yes Figure 4 An enlarged view of a camera module of the type shown at point C.

[0038] Figure 6 yes Figure 4 An enlarged view of a camera module of the type shown at D.

[0039] Figure 7 It is a three-dimensional structural diagram of the camera module in Example 1 of the present invention after the cover is removed.

[0040] Figure 8 It is a right view of the camera module in Example 1 of the present invention after removing the cover body and the photosensitive component.

[0041] Fig. 9 It is a partial stereoscopic decomposition of the camera module in Example 1 of the present invention. Figure 1 .

[0042] Fig.10 It is a three-dimensional structural diagram of the lens carrier in Example 1 of the present invention.

[0043] Fig.11 It is a three-dimensional structural diagram of the second carrier in Example 1 of the present invention.

[0044] Fig.12 It is a three-dimensional structural diagram of the support member in Example 1 of the present invention.

[0045] Fig.13 It is the local stereoscopic decomposition of the camera module in embodiment 1 of the present invention Figure 2 .

[0046] Fig.14 yes Fig.13 Partial stereoscopic decomposition of a camera module of the type shown Figure 2 A view in the other direction.

[0047] Fig.15It is a three-dimensional structural diagram of the base and the support member in the camera module in Example 1 of the present invention.

[0048] Fig.16 It is a three-dimensional structural diagram of the first carrier in Example 1 of the present invention.

[0049] Fig.17 yes Fig.16 A view of a first carrier of the type shown in another direction.

[0050] Fig.18 It is a three-dimensional structural diagram of the support member in Example 2 of the present invention.

[0051] Fig.19 It is a partial three-dimensional exploded diagram of the camera module in Example 3 of the present invention.

[0052] Fig. 20 for Fig.19 A perspective exploded view of a portion of a camera module of the type shown is shown in another direction. DETAILED DESCRIPTION

[0053] Example 1

[0054] like Figures 1 to 17 Shown is a first preferred embodiment of the present invention.

[0055] The terminal device (not shown in the figure) in this embodiment is a mobile phone, and the camera module is a periscope camera module. Figure 1 As shown, in order to facilitate the description of this embodiment, the length direction of the periscope camera module is defined as the Z-axis direction, the width direction is the X-axis direction, and the thickness direction is the Y-axis direction. It can be understood that the coordinate system setting of the camera module can be flexibly set according to specific actual needs. In the terminal device (not shown in the figure) of this embodiment, the camera module is assembled in the housing of the terminal device (not shown in the figure), and the thickness direction of the camera module is consistent with the thickness direction of the terminal device (not shown in the figure) (i.e., the front and rear direction of the terminal device).

[0056] The camera module comprises a housing 1, a light deflection assembly 100 and a lens assembly 200 arranged inside the housing 1, and a photosensitive assembly 300 arranged on the outer surface of the housing 1 (see Figure 3 ), the photosensitive component 300 is arranged along the thickness direction of the terminal device, that is, along the thickness direction of the camera module. Since the light redirection component 100 usually has a first optical axis parallel to the incident light beam and a second optical axis parallel to the outgoing light beam, the lens assembly 200 and the photosensitive component 300 each have an optical axis, and the first optical axis, the second optical axis, the optical axis of the lens assembly 200 and the optical axis of the photosensitive component 300 together constitute the optical path O of the camera module (see Figure 3 and Figure 7), so that the light from the object side is first changed in direction by the light redirection assembly 100, then converged by the lens assembly 200, and finally received by the photosensitive assembly 300 and imaged after passing through the housing 1. In this embodiment, the light redirection assembly 100, the lens assembly 200 and the photosensitive assembly 300 are sequentially distributed along the Z axis direction (see Figure 7 ), which means that the second optical axis of the light deflection assembly 100, the optical axis of the lens assembly 200, and the optical axis of the photosensitive assembly 300 are all arranged to extend along the Z-axis direction, so that a part of the optical path O of the camera module extends along the Z-axis direction.

[0057] Specifically, Figure 3 As shown, the housing 1 includes a base 1a and a cover 1b, wherein one side of the base 1a is open in the Y-axis direction, and the cover 1b closes the opening of the base 1, so that when assembling the camera module, the components (such as the light deflection assembly 100 and the lens assembly 200) are first assembled inside the housing 1, and then the cover 1b is covered on the base 1, so as to facilitate the assembly of the camera module; and the base 1a and the cover 1b together form a first chamber 11 and a second chamber 12. Among them, the light deflection assembly 100 is accommodated inside the second chamber 12, the lens assembly 200 is accommodated inside the first chamber 11, and the photosensitive assembly 300 is arranged outside the first chamber 11.

[0058] Furthermore, the cover 1b is provided with a first light window 13 (see FIG. 1 ) on one side of the Y-axis direction and opposite to the light redirection assembly 100. Figure 1 and Figure 3 ), so as to allow light outside the housing 1 to enter through the first light window 13 and irradiate the light redirection assembly 100. The first chamber 11 and the second chamber 12 are arranged adjacent to each other in the Z-axis direction, so that the first chamber 11 and the second chamber 12 have a common wall portion, and the common wall portion is provided with a second light window 14, and the light redirection assembly 100 and the lens assembly 200 are opposite to each other through the second light window 14 (see Figure 7 ), so that the outgoing light of the light redirecting assembly 100 enters the first chamber 11 through the second light window 14 and irradiates the lens assembly 200. The base 1 is provided with a third light window 15 on one side in the Z-axis direction, and the lens assembly 200 is opposite to the photosensitive assembly 300 through the third light window 15 (see Figure 7 ) so that the outgoing light of the lens assembly 200 passes through the first chamber 11 through the third light window 15 and irradiates the photosensitive assembly 300.

[0059] like Figure 3 and Fig.14As shown, the light redirection component 100 includes a light redirection element 23 for changing the direction of light. Specifically, in this embodiment, the light redirection element 23 is a prism. The prism includes the aforementioned incident surface 231 and the exit surface 232. The angle between the incident surface 231 and the exit surface 232 of the prism is 90°. In this embodiment, the incident surface 231 of the prism is the plane where XZ is located, and is opposite to the first light window 13, so that the first optical axis of the light redirection component 100 extends along the Y-axis direction; the exit surface 232 of the prism is the plane where XY is located, and is opposite to the second light window 14, so that the second optical axis of the light redirection component 100 extends along the Z-axis direction. The prism also includes a reflective surface 233, and the angle between the incident surface 231 and the reflective surface 233, and the angle between the exit surface 232 and the reflective surface 233 are both 45°, so that the light makes a 90° turn at the reflective surface 233, so that the overall thickness of the periscope camera module can be reduced.

[0060] Furthermore, if Figure 7 , Fig.12 and Fig.13 As shown, the light redirection assembly 100 further includes a first carrier 5 and a second carrier 6, and the first carrier 5 and the second carrier 6 both have an inner cavity (see Fig.12 and 13 The first carrier 5 is constrained inside the second chamber 12 in a manner that it can rotate around a first rotation axis P1, and the first rotation axis P1 extends along the Y-axis direction; the second carrier 6 is constrained inside the first carrier 5 in a manner that it can rotate around a second rotation axis P2, and the second rotation axis P2 extends along the X-axis direction; and the light deflection element 23 is constrained inside the second carrier 6 (see Figure 7 ), so that the first carrier 5 can drive the second carrier 6 and the light deflection element 23 to rotate synchronously around the first rotation axis P1, and the second carrier 6 can drive the light deflection element 23 to rotate around the second rotation axis P2, and then when the lens assembly 200 shakes relative to the photosensitive assembly 300 during the shooting process of the terminal device (not shown in the figure), the first carrier 5 and the second carrier 6 can drive the light deflection element 23 to rotate, so as to realize the anti-shake correction of the lens assembly 200 along the orthogonal plane of its optical axis, so that the camera module has an OIS anti-shake function. Among them, the rotational movement of the light deflection element 23 around the first rotation axis P1 can also be called a head shaking movement, and the rotational movement of the light deflection element 23 around the second rotation axis P2 can also be called a nodding movement.

[0061] like Fig.14As shown, a first anti-shake driving mechanism is provided between the first carrier 5 and the cavity wall of the second cavity 12, and the first anti-shake driving mechanism includes a first coil 811 and a first magnet group 812 arranged opposite to each other, so that the Ampere force generated between the first coil 811 and the first magnet group 812 drives the first carrier 5 to rotate around the first rotation axis P1. Specifically, the second cavity 12 has a first side wall 12a and a second side wall 12b opposite to each other in the X-axis direction, and each of the first side wall 12a and the second side wall 12b is provided with a first coil 811. Each first coil 811 is a planar coil, and each first coil 811 is mounted on the inner surface of the corresponding side wall; a first circuit board 91 is provided on the side wall of the base 1, and the first circuit board 91 is electrically conductive with each first coil 811. The first carrier 5 has a third side wall 5a and a fourth side wall 5b relative to each other in the X-axis direction, the outer surface of the third side wall 5a is opposite to the inner surface of the first side wall 12a, the outer surface of the fourth side wall 5b is opposite to the inner surface of the second side wall 12b, and the outer surfaces of the third side wall 5a and the fourth side wall 5b are both provided with a first mounting groove 53, each of the first mounting grooves 53 contains a first magnet group 812 mentioned above, each of the first magnet groups 812 includes two first magnets with opposite magnetic poles, and the first magnets of each first magnet group 812 are mounted in the corresponding first mounting groove 53.

[0062] The second chamber 12 has a third wall portion 120 perpendicular to the first rotation axis P1 (ie, the Y-axis direction), the third wall portion 120 is located between the first side wall 12a and the second side wall 12b, and the third wall portion 120 is provided with a first guide groove 121 (see Fig.14 The first carrier 5 has a fourth wall portion 50 opposite to the third wall portion 120, and the fourth wall portion 50 is located between the third side wall 5a and the fourth side wall 5b (see Fig.16 ), and the fourth wall portion 50 and the first guide groove 121 jointly constrain the first ball 71 (see Fig.13 ), thereby guiding the rotation of the first carrier 5 around the first rotation axis P1. Specifically, the third wall portion 120 is provided with a central axis 122, and the first guide groove 121 surrounds the central axis 122 (see Fig.14 The fourth wall portion 50 is provided with an axial hole 51 for the central axis 122 to be inserted, and four second guide grooves 52 are arranged at intervals along the circumferential direction on the periphery of the axial hole 51, each second guide groove 52 is arc-shaped (see Fig.16 ), and each second guide groove 52 and the first guide groove 121 jointly constrain a first ball 71.

[0063] In this embodiment, a central axis 122 and an axial hole 51 are provided between the third wall portion 120 and the fourth wall portion 50, so that the central axis 122 and the axial hole 51 constitute the central supporting part of the second chamber 12 for the first carrier 5; and a first guide groove 121 is provided surrounding the central axis 122, so that the first ball 71 in the first guide groove 121 constitutes the peripheral supporting part of the shell 1 for the first carrier 5, which can make the force on the first carrier 5 more balanced, thereby preventing the first carrier 5 from being skewed. Furthermore, by configuring the first guide groove 121 to be annular, the first balls 71 can be allowed to slide a longer stroke in the circumferential direction of the first guide groove 121, thereby increasing the rotation angle of the first carrier 5 around the first rotation axis P1. However, the first balls 71 in the first guide groove 121 are prone to slide and gather together, which will cause force concentration in a local area of ​​the first carrier 5, making the first carrier 5 prone to tilt. The provision of the arc-shaped second guide groove 52 can separate the first balls 71 in the circumferential direction of the first guide groove 121 to avoid the first balls 71 from gathering, thereby effectively reducing the risk of the first carrier 5 tilting, and making the light deflection element 23 less likely to tilt.

[0064] A second anti-shake driving mechanism is disposed between the second chamber 12 and the second carrier 6. The second anti-shake driving mechanism includes a second coil 821 and a second magnet group 822 that are disposed opposite to each other (see Fig.12 and Fig.13 ), so that the Ampere force generated between the second coil 821 and the second magnet group 822 drives the second carrier 6 to rotate around the second rotation axis P2. Specifically, the second chamber 12 has a fifth side wall 12c that is away from the lens assembly 200 on the Z axis and is arranged along the XY plane. The second coil 821 is fixed on the fifth side wall 12c, and the second coil 821 is electrically connected to the first circuit board 91 (see Fig.14 The first carrier 5 has a sixth side wall 5c which is away from the lens assembly 200 on the Z axis and arranged along the XY plane. The sixth side wall 5c is provided with a notch 54 (see Fig.13 and Fig.15 ), the second carrier 6 has a seventh side wall 6a (see FIG. 1 ) which is away from the lens assembly 200 on the Z axis and arranged along the XY plane. Fig.11 and Fig.14 ), the seventh side wall 6a is opposite to the fifth side wall 12c in the Z-axis direction through the notch 54, and the outer surface of the seventh side wall 6a is provided with a second mounting groove 61 (see Fig.11 ), the second mounting groove 61 contains the aforementioned second magnet group 822 (see Fig.14 ). The second magnet group 822 includes two second magnets with opposite magnetic poles, and the second magnets of the second magnet group 822 are mounted in the second mounting groove 61.

[0065] like Figures 12 to 17 As shown, the second carrier 6 has a fifth wall portion 60 perpendicular to the Y axis, the fifth wall portion 60 is arranged opposite to the fourth wall portion 50 of the first carrier 5, and a first guide structure is arranged between the fourth wall portion 50 and the fifth wall portion 60, and a second guide structure is arranged between the sixth side wall 5c of the first carrier 5 and the seventh side wall 6a of the second carrier 6, and the first guide structure and the second guide structure can both guide the rotation of the second carrier 6 around the second rotation axis P2. The first guide structure has two groups, and the two groups of first guide structures are arranged at intervals along the X axis direction and are correspondingly located on both sides of the second guide groove 52. The second guide structure has two groups, and the two groups of second guide structures are arranged at intervals along the X axis direction and are located on both sides of the notch 54. The first guide structure and the second guide structure are distributed in two perpendicular directions, and the position distribution of the guide structure between the first carrier 5 and the second carrier 6 and the guide structure between the first carrier 5 and the second chamber 12 can make the force on the second carrier 6 more balanced, so that the light deflection element 23 is not easy to be skewed.

[0066] Specifically, the first guide structure includes a third guide groove 55 (see Fig.16 ), a fourth guide groove 62 (see Fig.11 ), and the second ball 72 constrained between the third guide groove 55 and the fourth guide groove 62 (see Fig.16 ), the third guide groove 55 and the fourth guide groove 62 are both arranged along the Z-axis direction, and the fourth guide groove 62 is an arc groove. The second guide structure includes a fifth guide groove 56 (see Fig.16 ), a sixth guide groove 63 (see Fig.11 ), and the third ball 73 constrained between the fifth guide groove 56 and the sixth guide groove 63 (see Fig.16 ), the fifth guide groove 56 and the sixth guide groove 63 are both arranged along the Y axis, and the sixth guide groove 63 is an arc groove.

[0067] like Figure 7 As shown, the light deflection element 23 is attached to the inner surface of the second carrier 6, and the first rotation axis P1 and the second rotation axis P2 both pass through the center of the reflecting surface 233 of the light rotating element 23, so that the first carrier 5 and the second carrier 6 both drive the light deflection element 23 to rotate around the center of the light deflection element 23, which can make the OIS anti-shake adjustment accuracy of the camera module higher.

[0068] The camera module also includes a metal support member 4, which includes a first reinforcement plate 41 (see Figure 3 ), the first reinforcing plate 41 is embedded in the base 1 (see Figure 3) to strengthen the base 1, thereby improving the bearing capacity of the base 1. The first chamber 11 has a first wall portion 110 perpendicular to the Y axis, the first reinforcing plate 41 is partially embedded in the first wall portion 110, partially embedded in the third wall portion 120, and the first reinforcing plate 41 partially embedded in the third wall portion 120 constitutes the inner wall of the first guide groove 121 opposite to its mouth; the fourth wall portion 50 of the first carrier 5 is embedded with a second reinforcing plate 92 made of metal, and the second reinforcing plate 92 partially constitutes the inner wall of the second guide groove 52 opposite to its mouth (see Figure 3 ). This design allows the first ball 71 to contact the first reinforcement plate 41 and the second reinforcement plate 92. Since the first ball 71 is usually made of ceramic material, and the first reinforcement plate 41 and the second reinforcement plate 92 are made of metal, the friction between the first ball 71 and the first reinforcement plate 41 and the second reinforcement plate 92 during the rolling process is not easy to produce pits and powder, which can avoid the sliding of the first ball 71 from getting stuck, and can also provide a cleaner accommodation environment for the light deflection element 23, so that the light deflection element 23 is not easily affected by the optical performance due to the contamination of powder. In addition, the first reinforcement plate 41 is assembled during the injection molding process of the base 1, and the second reinforcement plate 92 is assembled during the injection molding process of the first carrier 5, and no additional steps are added to the assembly of the camera module. The support member 4 in this embodiment is a steel plate.

[0069] like Figure 3 and Figure 7 As shown, the lens assembly 200 includes a fixed lens 21 and a movable lens 22 which are spaced apart in the Z-axis direction, and the optical axes of the fixed lens 21 and the movable lens 22 are both along the Z-axis direction. The first chamber 11 is spaced apart in the X-axis direction with an eighth side wall 11a and a ninth side wall 11b, and the eighth side wall 11a and the ninth side wall 11b are both provided with a third mounting groove 112, and the two third mounting grooves 112 are arranged opposite to each other. The lens barrel of the fixed lens 21 is respectively provided with an insertion portion 211 on both sides in the X-axis direction, and each insertion portion 211 is respectively inserted into the third mounting groove 112 on the corresponding side (see Figure 7 ), so as to facilitate the restraint and fixation of the lens 21. The first chamber 11 is provided with a lens carrier 3 inside, and the lens carrier 3 is provided with a fourth mounting groove 31 on one side of the Y axis, and the movable lens 22 is installed in the fourth mounting groove 31 (see Fig. 9 and Fig.10), the lens carrier 3 can move along the optical axis of the movable lens 22, so as to drive the movable lens 22 to move along its optical axis, thereby realizing the focus of the camera module. It is understandable that the fixed lens 21 and the movable lens 22 both include a lens barrel and a plurality of lenses sequentially distributed inside the lens barrel along the optical axis direction, so that the fixed lens 21 and the movable lens 22 have better imaging effects. It is understandable that glue can also be filled between the insertion portion 211 of the fixed lens 21 and the third mounting groove 112, and between the movable lens 22 and the fourth mounting groove 31 for auxiliary fixation, which can prevent the fixed lens 21 and the movable lens 22 from moving relative to the photosensitive component and avoid affecting the imaging of the camera module.

[0070] like Figure 8 and 9 As shown, the lens carrier 3 has a second wall portion 30 opposite to the first wall portion 110, and the second wall portion 30 is provided with a groove 33 parallel to the optical axis direction of the movable lens 22. The support member 4 also includes a guide rod 42 integrally formed on the first reinforcing plate 41 and exposed on the surface of the first wall portion 110. The guide rod 42 is arranged in a direction parallel to the Z axis and slidably cooperates with the groove 33, so that the groove 33 serves as a first guide portion and the guide rod 42 serves as a second guide portion. The first guide portion and the second guide portion together constitute a support guide mechanism, thereby guiding the movement of the lens carrier 3 and the movable lens 22 Moreover, by integrally forming the guide rod 42 on the first reinforcing plate 41, the assembly of the guide rod 42 on the housing 1 can be completed in the process of embedding the first reinforcing plate 41 into the injection molding housing 1 through the InsertMolding process, simplifying the two assembly processes into one assembly process, and also improving the assembly efficiency of the camera module. More importantly, the guide rod 42 is not easily deformed due to the curing of the injection molded part during the processing, so that the second guide portion and the optical axis of the movable lens are more parallel, and the movable lens is not easily skewed during the movement, thereby reducing the assembly tilt of the camera module.

[0071] like Fig.11 As shown, the guide rod 42 is bent from the position of the first reinforcement plate 41 toward the lens carrier 3, so that the first reinforcement plate 41 can be formed into the guide rod 42 through a stamping process, which can reduce waste generation, save the raw materials of the first reinforcement plate 41, and thus save production costs.

[0072] like Figure 5As shown, the guide rod 42 includes an arc segment 421 and a straight segment 422. The cross section of the arc segment 421 is an arc, and the central angle α corresponding to the arc is ≤180°; the straight segment 422 has two sections, which are respectively connected to the two ends of the arc segment 421. The straight section can buffer the stress generated when the first reinforcement plate 41 is bent when the first reinforcement plate 41 is stamped, so that the arc segment 41 is not easily deformed, so that it is not easy to affect the contact between the inner wall of the groove 33 of the movable carrier and the guide rod 42, and further, it is not easy to affect the friction between the movable carrier and the guide rod 42.

[0073] like Figure 5 and Figure 6 As shown, the first wall portion 110 has a filling portion 111, and the filling portion 111 is filled in the interior of the guide rod 42, so that the filling portion 111 of the first wall portion 110 can support the guide rod 42, so that the guide rod 42 is not easily deformed after being compressed, and the structure formed by the combination of the housing 1 and the support member 4 has better support. If the optical axis of the movable lens 22 is arranged in the horizontal direction, the first chamber 11 has a bottom wall, and the bottom wall of the first chamber 11 constitutes the first wall portion 110. This is because the structure formed by the combination of the housing 1 and the support member 4 has better support and can meet its pressure-bearing requirements as a basis for bearing the dead weight of other components.

[0074] like Figure 4 and Figure 8 As shown, there are two groups of guide rods 42, and they are arranged at intervals on the corresponding sides of the first reinforcement plate 41 along the direction of the X-axis; accordingly, there are two groups of grooves 33, and the guide rods 42 on the corresponding sides are respectively inserted, so that the force on the lens carrier 3 in the X-axis direction is more balanced, and since the two guide rods 42 are both formed on the first reinforcement plate 41, the cumulative error can be reduced, thereby reducing the parallelism of the two guide rods 42. These two factors can make it difficult for the lens carrier 3 and the movable lens 22 to be skewed due to deflection due to their own weight, thereby reducing the assembly tilt of the camera module and improving the imaging quality of the camera module. Between the two guide rods 42, the first reinforcement plate 41 has a middle area 411 and a peripheral area 412. The middle area 411 is exposed to the first wall portion 110, and the peripheral area 412 is covered by the first wall portion 110. This can make the thickness of the first wall portion 110 of the first chamber 11 smaller, or provide more avoidance space for the lens carrier 3, thereby reducing the overall thickness of the camera module.

[0075] Since the support member 4 needs to be connected to the connecting material belt during the processing, Fig.12As shown, the support member 4 is provided with a connecting portion 44 connected to the first reinforcement plate 41 at the end adjacent to each guide rod 42, and the connecting portion 44 is used to connect to the connecting material strip; and, during the stamping process of the guide rod 42, stress exists inside the support member 4, and this stress easily causes the guide rod 42 to deform, thereby affecting the parallelism of the two guide rods 42. Therefore, in the direction parallel to the Z axis, there is a gap X between each connecting portion 44 and the end of the guide rod 42 at the corresponding end, thereby isolating the guide rod 42 from the connecting portion 44 in the direction parallel to the optical axis of the movable lens 22, thereby avoiding deformation of the guide rod 42 caused by the stress in the stamping process, thereby further reducing the parallelism of the two guide rods 42.

[0076] like Fig. 9 As shown, a focus driving mechanism is provided between the cavity wall of the first chamber 11 and the first carrier 5, and the focus driving mechanism includes a third coil 831 and a third magnet group 832 arranged opposite to each other. Specifically, the inner surfaces of the eighth side wall 11a and the ninth side wall 11b are each fixed with a third coil 831 as mentioned above, and the lens carrier 3 is provided with a tenth side wall 3a and an eleventh side wall 3b spaced apart along the X-axis direction, the outer surface of the tenth side wall 3a is opposite to the inner surface of the eighth side wall 11a, and the outer surface of the eleventh side wall 3b is opposite to the inner surface of the ninth side wall 11b, and the outer surface of the tenth side wall 3a and the outer surface of the eleventh side wall 3b are each provided with a fifth mounting groove 32, and each fifth mounting groove 32 contains a group of the third magnet group 832 as mentioned above. Each third magnet group 832 includes two third magnets with opposite magnetic poles, and the third magnets of each third magnet group 832 are mounted in the corresponding fifth mounting groove 32. Since the third magnet of the third magnet group 832 is a magnetic element, the third magnet of the third magnet group 832 will generate a magnetic attraction with the support member 4, which can limit the lens carrier 3 from being away from the support member 4 on the Y axis, thereby preventing the lens carrier 3 from being separated from the guide rod 42.

[0077] by Figure 4 Taking the direction shown in the figure as an example, the groove 33 located on the left side is the first groove 33A, and the groove 33 located on the right side is the second groove 33B. The inner wall of the first groove 33A is provided with a first contact portion 331 and a second contact portion 332 (see Figure 5 and Fig.10 ), the inner wall of the second groove 33B is provided with a third contact portion 333 (see Figure 6 and Fig.10 ), in a direction parallel to the optical axis of the movable lens 22, the first contact portion 331, the second contact portion 332 and the third contact portion 333 are spaced apart, and the third contact portion 333 is correspondingly located between the first contact portion 331 and the second contact portion 332 (see Fig.10Since the first contact portion 331, the second contact portion 332 and the third contact portion 333 are all convexly arranged on the inner wall of the corresponding groove 33, the first contact portion 331, the second contact portion 332 and the third contact portion 333 constitute three supporting parts of the lens carrier 3, which can reduce the contact area between the groove 33 and the guide rod 42, thereby reducing the friction between the lens carrier 3 and the guide rod 42, so that the movement of the lens carrier 3 can be smoother, and the three supporting parts are distributed in a triangular shape (see Fig.10 ), which can make the force on the lens carrier 3 more balanced, thereby making it less likely for the lens carrier 3 and the movable lens 22 to be skewed.

[0078] like Fig.10 As shown, each groove 33 has a first side 33a opposite to its mouth, and a second side 33b and a third side 33c located between its mouth and the first side 33a. The second side 33b and the third side 33c of each groove 33 are arranged opposite to each other in the X-axis direction. In addition, the second side 33b of each groove 33 is close to another groove 33, and the third side 33c of each groove 33 is far away from another groove 33, that is, the second side 33b of the first groove 33A is close to the second groove 33B, the third side 33c of the first groove 33A is far away from the second groove 33B, the second side 33b of the second groove 33B is close to the first groove 33A, and the third side 33c of the second groove 33B is far away from the first groove 33A. In addition, the orientation of each groove 33 is downward (with Figure 4 direction shown as an example).

[0079] like Figure 5 As shown, the first contact portion 331 includes a first plane 3311 located at the first side 33a of the first groove 33A and a first inclined surface 3312 located at the second side 33b of the first groove 33A. The first inclined surface 3312 is oriented in a downward direction ( Figure 4 The second contact portion 332 includes a second plane 3321 located at the first side 33a of the first groove 33A and a second inclined surface 3322 located at the third side 33c of the first groove 33A. The second inclined surface 3322 is oriented in the downward direction ( Figure 4 The third contact portion 333 includes a third plane 3331 located at the first side 33a of the second groove 33B and a third inclined surface 3332, the third inclined surface 3332 is located at the second side 33b of the second groove 33B and faces downward ( Figure 4 direction) gradually approaching the first groove 33A (see Figure 6 ).

[0080] In this embodiment, the first inclined surface 3312 and the second inclined surface 3322, the first inclined surface 3312 and the third inclined surface 3332 together form a V-shaped groove that cooperates with the guide rod 42, so that the movement of the lens carrier 3 can be guided, and the lens carrier 3 and the optical lens can be limited from deflecting and tilting; finally, each guide rod 42 contacts the contact portion through the corresponding plane and inclined surface, so that each guide rod 42 applies pressure to the contact portion along the Y-axis direction and in a direction perpendicular to the corresponding inclined surface. Since the force applied by each guide rod 42 along the Y-axis direction is opposite to the direction of the attraction force of the support member 4 on the third magnet group 832 of the magnetic element, the force applied by each guide rod 42 along the Y-axis direction is used as the main force direction, and the force applied by each guide rod 42 along the direction perpendicular to the corresponding inclined surface is used as the auxiliary force direction, so that the plane mainly plays a pressure-bearing role and the inclined surface mainly plays a guiding role, thereby allowing the inclination angle of each inclined surface to deviate from the appropriate angle range, thereby reducing the processing accuracy requirements of the inclined surface. In the prior art, the two grooves 33 are usually designed as follows: the cross-section of one groove 33 is roughly V-shaped, and the cross-section of the other groove 33 is roughly U-shaped, and the pressure-bearing surface of the groove 33 is mainly on the inclined surface. Therefore, in order to ensure that the components of the force applied by the two inclined surfaces of the V-shaped groove to the guide rod 42 are balanced to prevent the lens carrier 3 from deflecting, the processing accuracy of the two inclined surfaces of the V-shaped groove is required to be higher.

[0081] The support member 4 further includes a light shielding portion 43 located inside the first chamber 11, and the light shielding portion 43 is located between the movable lens 22 and the photosensitive component 300 on the optical path O (see Figure 3 In the direction opposite to the optical axis of the movable lens 22, the projection of the light blocking portion 43 on the lens carrier 3 and the projection on the movable lens 22 avoid the lens 222 of the movable lens 22, and at least a part of the projection of the light blocking portion 43 on the lens carrier 3 falls on a side surface of the lens carrier 3 adjacent to the exit end of the movable lens 22, and at least a part of the projection of the light blocking portion 43 on the movable lens 22 falls on a side surface of the lens barrel 221 of the movable lens 22 adjacent to the exit end of the movable lens 22 (see Figure 8 In this embodiment, the light shielding portion 43 is formed by stamping the support member 4, and the processing technology is simple.

[0082] like Figure 1 and Fig. 9As shown, the photosensitive component 300 includes a second circuit board (not shown in the figure), a photosensitive chip 24 and electronic components (not shown in the figure). The second circuit board is fixed (such as attached by glue) to one side surface of the base 1 on the Z axis, and the second circuit board is electrically connected to the first circuit board 91 (the first circuit board 91 is provided with a pin 911 on the edge of one side close to the second circuit board, and the pin 911 is electrically connected to the second circuit board). The photosensitive chip 24 is fixed (such as attached by glue) to the second circuit board and is electrically connected to the second circuit board (such as electrically connected to the first circuit board by gold wire), so that the second circuit board provides the photosensitive chip 24 with the control circuit and electric energy required for work. The photosensitive chip 24 has a photosensitive area, which is used to receive light and can convert light signals into electrical signals for imaging. The electronic components 93 refer to capacitors and resistors.

[0083] Example 2

[0084] like Fig.18 FIG. 2 is a diagram showing a second preferred embodiment of the present invention.

[0085] The difference between this embodiment and embodiment 1 is that the guide rod 42 only includes an arc segment 421, and the central angle α corresponding to the arc of the cross section of the arc end 421 is 180°. The cross section of the guide rod 42 is designed to be an arc of no more than 180°. Compared with the cross section of the guide rod 42 being a complete circle, the other half of the arc of the guide rod 42 is omitted, and the straight section of the guide rod 42 is also omitted. In addition to saving the raw material of the guide rod 42, more importantly, the size of the guide rod 42 in the direction perpendicular to the optical axis of the movable lens 22 can be reduced, thereby reducing the size of the camera module, which is conducive to the miniaturization design of the camera module, or it can reduce the occupation of the internal space of the motor, allowing more installation space to be avoided for the motor drive mechanism, allowing the volume of the drive mechanism to be designed to be larger, so that the drive mechanism has a greater driving force, so that the motor travel focusing and zooming travel is longer.

[0086] Typically, the wall thickness of the guide rod 42 is about 0.1 mm, and the thickness of the guide rod 42 in the Y-axis direction is 0.3-0.4 mm, thereby being able to have both the support function of the guide rod 42 and the small size in the thickness direction of the camera module.

[0087] Example 3

[0088] like Figures 19-20 FIG. 2 is a third preferred embodiment of the present invention.

[0089] The difference between this embodiment and embodiment 1 is that: the first carrier 5 has a cross beam 57 which is away from the lens assembly 200 on the Z axis and is arranged along the XY plane, the seventh side wall 6a of the second carrier 6 has a cross recess 64 adapted to the cross beam 57, and a convex portion 65 located on the side of the cross recess 64, and the aforementioned second guide mechanism has only one group and is arranged between the cross recess 64 and the cross beam 57, each convex portion 65 has a second mounting groove 61, each second mounting groove 61 accommodates one of the aforementioned second magnets, and the two second magnets arranged at intervals along the Y axis together constitute a second magnet group 822.

[0090] Example 4

[0091] The difference between this embodiment and embodiment 1 is that the surface of the light blocking portion is processed by a laser atomization process to further enhance the diffuse reflection of the surface of the light blocking portion, thereby further reducing the risk of stray light of the camera module.

[0092] Example 5

[0093] The difference between this embodiment and embodiment 1 is that the wall thickness of the first reinforcement plate is greater than the wall thickness of the guide rod, which can make the reinforcement effect of the first reinforcement plate better and make the guide rod easier to bend, thereby improving the reliability of the camera module and making the camera module more anti-fall performance.

[0094] Example 6

[0095] The difference between this embodiment and embodiment 1 is that the third contact portion includes a third plane located at the first side of the second groove and a third inclined surface located at the third side of the second groove, and the third inclined surface is in the downward direction ( Figure 4 The groove is gradually moved away from the first groove in the direction shown in the figure.

[0096] Example 7

[0097] The difference between this embodiment and Embodiment 1 is that the lens assembly only includes a movable lens, which can further reduce the size of the camera module. However, the imaging quality is related to the number of lenses, and the imaging quality of the camera module is reduced.

[0098] Example 8

[0099] The difference between this embodiment and embodiment 1 is that there are two groups of movable lenses, which are spaced apart along the Z-axis direction. Correspondingly, there are two groups of lens carriers, and the corresponding movable lenses are mounted thereon respectively. In this way, the zoom of the camera module can be achieved by moving the movable lenses.

Claims

1. A camera module, characterized in that: include: A housing (1) having a first chamber (11) therein, wherein the first chamber (11) has a first wall portion (110); A movable lens (22), the optical axis of which is parallel to the first wall portion (110); a lens carrier (3) on which the movable lens (22) is mounted, the lens carrier (3) being constrained inside the first chamber (11) in a manner that allows it to move along the optical axis of the movable lens (22), and the lens carrier (3) having a second wall portion (30) opposite to the first wall portion (110); A support member (4), comprising a first reinforcing plate (41) at least partially embedded in the first wall portion (110); Furthermore, a support guide mechanism is provided between the lens carrier (3) and the support member (4), the support guide mechanism comprising a first guide portion provided on the second wall portion (30) and a second guide portion integrally formed on the first reinforcement plate (41), the second guide portion being exposed on the surface of the first wall portion (110), and the first guide portion and / or the second guide portion being arranged in a direction parallel to the optical axis of the movable lens (22).

2. The camera module according to claim 1, characterized in that: The first guide portion is a groove (33), the second guide portion is a guide rod (42) slidably matched with the groove (33), and the first guide portion and the second guide portion both extend in a direction parallel to the optical axis of the movable lens (22).

3. The camera module according to claim 2, characterized in that: The support member (4) is made of metal, and the guide rod (42) is bent from the position where the first reinforcement plate (41) is located toward the lens carrier (3).

4. The camera module according to claim 3, characterized in that: The guide rod (42) comprises an arc segment (421) whose cross section is an arc, and the central angle α corresponding to the arc is ≤180°.

5. The camera module according to claim 4, characterized in that: The guide rod (42) further comprises a straight section (422) connected to at least one end of the arc section (421).

6. The camera module according to claim 3, characterized in that: The first wall portion (110) is provided with a filling portion (111) filled in the interior of the guide rod (42).

7. The camera module according to claim 2, characterized in that: There are two guide rods (42), which are arranged at intervals on the corresponding sides of the first reinforcement plate (41) along a direction perpendicular to the optical axis of the movable lens (22). Correspondingly, there are two groups of grooves (33), which are respectively provided for the guide rods (42) on the corresponding sides to be inserted. Between the two guide rods (42), the first reinforcement plate (41) has a middle area (411) and a peripheral area (412), wherein the middle area (411) is exposed to the first wall portion (110), and the peripheral area (411) is covered by the first wall portion (110).

8. The camera module according to claim 7, characterized in that: The support member (4) is provided with a connecting portion (44) connected to the first reinforcing plate (41) at the end adjacent to each guide rod (42), and a gap (X) is provided between each connecting portion (44) and the end of the guide rod (42) at the corresponding end in a direction parallel to the optical axis of the movable lens (22).

9. The camera module according to claim 8, characterized in that: A first contact portion (331) and a second contact portion (332) are convexly provided on the inner wall of one of the grooves (33), and a third contact portion (333) is convexly provided on the inner wall of the other groove (33). In a direction parallel to the optical axis of the movable lens (22), the first contact portion (331), the second contact portion (332) and the third contact portion (333) are distributed at intervals, and the third contact portion (333) is correspondingly located between the first contact portion (331) and the second contact portion (332).

10. The camera module according to claim 9, characterized in that: The lens carrier (3) is provided with a magnetic element, and the support member (4) is made of a magnetic absorbing material; Each groove (33) has a first side (33a) opposite to its mouth, and a second side (33b) and a third side (33c) located between its mouth and the first side (33a); the second side (33b) and the third side (33c) of each groove (33) are arranged opposite to each other in a direction perpendicular to the optical axis of the movable lens (22); and the second side (33b) of each groove (33) is close to another groove (33), and the third side (33c) of each groove (33) is far from another groove (33); The first contact portion (331) comprises a first plane (3311) located on a first side (33a) of the corresponding groove (33) and a first inclined surface (3312) located on a second side (33b) of the corresponding groove (33), wherein the first inclined surface (3312) gradually approaches another groove (33) in the direction of the corresponding groove (33); The second contact portion (332) comprises a second plane (3321) located on the first side (33a) of the corresponding groove (33) and a second inclined surface (3322) located on the third side (33c) of the corresponding groove (33), wherein the second inclined surface (3322) gradually moves away from the other groove (33) in the direction of the corresponding groove (33); The third contact portion (333) includes a third plane (3331) and a third inclined surface (3332) located on the first side (33a) of the corresponding groove (33); the third inclined surface (3332) is located on the second side (33b) of the corresponding groove (33) and gradually approaches the other groove (33) in the direction of the corresponding groove (33); or, the third inclined surface (3332) is located on the third side (33c) of the corresponding groove (33) and gradually moves away from the other groove (33) in the direction of the corresponding groove (33).

11. The camera module according to claim 7, characterized in that: The wall thickness of the first reinforcing plate (41) is greater than the wall thickness of the guide rod (42).

12. The camera module according to any one of claims 1 to 11, characterized in that: The housing (1) is provided with a second chamber (12) inside, and further comprises: A first carrier (5) is constrained inside the second chamber (12) in a manner that allows it to rotate around a first rotation axis (P1); The second carrier (6) is constrained to the first carrier (5) in a manner that it can rotate around a second rotation axis (P2), and the first rotation axis (P1), the second rotation axis (P2) and the optical axis of the movable lens (22) are orthogonal to each other; A light redirecting element (23) is mounted on the second carrier (6) and is used to change the direction of incident light, and on the optical path (O), the light redirecting element (23) is located upstream of the movable lens (22); A photosensitive component (300) is used to convert a received light signal into an electrical signal for imaging, and the photosensitive component (300) is located downstream of the movable lens (22) on the optical path (O); Furthermore, if the optical axis of the movable lens (22) is arranged in the horizontal direction, the first chamber (11) has a bottom wall, and the bottom wall of the first chamber (11) constitutes the first wall portion (110).

13. The camera module according to claim 12, wherein: The second chamber (12) has a third wall portion (120) perpendicular to the first rotation axis (P1), the third wall portion (120) is provided with a central axis (122) and a first guide groove (121) surrounding the central axis (122), and a portion of the first reinforcing plate (41) constitutes an inner wall of the first guide groove (121) opposite to its mouth; The first carrier (5) has a fourth wall portion (50) opposite to the third wall portion (120), and the fourth wall portion (50) is provided with an axial hole (51) for the central axis (122) to be inserted, and at least two second guide grooves (52) arranged at intervals along the circumferential direction on the periphery of the axial hole (51), each second guide groove (52) is arc-shaped, and each second guide groove (52) and the first guide groove (121) jointly constrain a first ball (71).

14. The camera module according to claim 13, wherein: The support member (4) further comprises a light blocking portion (43) located between the movable lens (22) and the photosensitive component (300) on the optical path (O); in the opposite direction of the optical axis of the movable lens (22), the projection of the light blocking portion (43) on the lens carrier (3) and / or the movable lens (22) avoids the lens (222) of the movable lens (22); and at least a part of the projection of the light blocking portion (43) on the lens carrier (3) falls on a side surface of the lens carrier (3) adjacent to the exit end of the movable lens (22); and / or at least a part of the projection of the light blocking portion (43) on the movable lens (22) falls on a side surface of the lens barrel (221) of the movable lens (22) adjacent to the exit end of the movable lens (22).

15. A terminal device, characterized in that: A camera module as claimed in any one of claims 12 to 14 is used; The photosensitive component (300) is arranged along the thickness direction of the terminal device, and the terminal device is one of a mobile phone, a tablet computer, a notebook computer, an e-book, a personal digital assistant, and a camera.

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