Driving component, motor, camera module and driving component manufacturing method

Abstract

The present invention discloses a driving component, a motor, a camera module and a driving component manufacturing method, which belongs to the field of camera modules, and includes an insulating body and a reinforcement member embedded in the insulating body. The driving component also includes a buffer portion fixed to the reinforcement member, and the buffer portion is provided with a buffer surface, and the buffer surface protrudes from the surface of the insulating body. The buffer portion of the present application is fixed to the reinforcement member and then combined with the insulating body, which can avoid the buffer portion being directly assembled with the insulating body, avoids friction and wear when the buffer portion and the insulating body are matched, and can more conveniently integrate the buffer portion into the driving component.

Description

Technical Field

[0001] The present invention relates to the technical field of camera modules, and in particular to a driving component, a motor including the driving component, a camera module including the motor, and a method for manufacturing the driving component. Background Art

[0002] The motor is an indispensable component of the camera module. During the operation of the camera module, the motor is used to drive the lens to move to achieve the focus and anti-shake functions of the camera module.

[0003] The motor usually includes a carrier for carrying the lens, a shell surrounding the carrier, a base for fixing the shell, an elastic element for movably supporting the carrier in the space defined by the base and the shell, magnets respectively arranged on the shell and the carrier, and a coil matched with them. The working principle of the motor is: a specified current is passed into the coil, and the magnetic field generated by the coil interacts with the magnet, thereby driving the carrier to move relative to the shell, and the carrier drives the lens to move, so as to achieve focus and anti-shake of the camera module.

[0004] When the motor drives the lens to move, the carrier moves relative to the housing and the base. During the movement, collisions may damage components or generate some debris, causing excessive stains inside the motor. In addition, during the reliability test of the motor, collisions and drops are routine tests. During this process, the carrier, housing, and base collide to generate debris. The debris may adhere to the various components of the motor and affect the use of the motor. After the motor is assembled in the camera module, the camera module also needs to undergo reliability testing. At this time, because the carrier and the lens are fixed together, under the weight of the lens itself, the collision between the carrier and the housing and the base during the fall is more intense, which will generate more debris inside the motor. These debris may adhere to the lens, affecting the image quality and causing the entire camera module to be defective.

[0005] In patent CN114070965A, an elastic polymer layer is directly injected onto the protruding structure on the side surface of the carrier body by secondary molding to form a buffer portion, thereby avoiding damage to components and generation of debris during collision. However, when the buffer portion is small in structure or complex in shape, the manufacturing cost is high and the efficiency is low.

[0006] In addition, the buffer part is mounted on the driving component by gluing, but when the buffer part is mounted on the driving component, friction is generated due to assembly, which may cause wear to the buffer part.

[0007] Therefore, how to avoid the buffer part from being directly assembled with the plastic body and to more conveniently integrate the buffer part into the driving component has become a technical problem that needs to be solved urgently. Summary of the invention

[0008] In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide a driving component that can prevent the buffer portion from being worn when it is installed on the driving component.

[0009] One of the purposes of the present invention is achieved by the following technical solution:

[0010] A driving component comprises an insulating body and a reinforcement member embedded in the insulating body. The driving component further comprises a buffer portion fixed to the reinforcement member. The buffer portion is provided with a buffer surface, and the buffer surface protrudes from the surface of the insulating body.

[0011] Furthermore, the buffer portion is assembled and fixed to the reinforcement piece, or the buffer portion is injection-molded and fixed to the reinforcement piece.

[0012] Furthermore, a gap is formed between the buffer portion and the insulating body, and the reinforcement is exposed in the gap.

[0013] Furthermore, the insulating body is injection molded on the reinforcing member, with the height direction of the insulating body as the vertical direction, and the projections of the buffer portion and the insulating body in the vertical direction overlap.

[0014] Furthermore, the buffer portion is formed of an elastically deformable material, and the reinforcement is made of a metal material.

[0015] Furthermore, the driving component is a fixed motor base or a relatively movable motor support, the insulating body includes a bottom wall and a side wall extending upward from the bottom wall, and the buffer portion is located on the side wall of the insulating body.

[0016] Furthermore, the insulating body includes an insulating seat and an insulating block, the insulating block is injection molded on the reinforcing member, the insulating seat is injection molded on the insulating block and the reinforcing member, and the buffer portion is positioned in the insulating block to be isolated relative to the insulating seat.

[0017] Furthermore, the buffer portion and / or the insulating block are formed by a one-time injection molding on a part of the reinforcement member, the reinforcement member is bent to form a three-dimensional structure and drives at least a part of the buffer portion and the insulating block to move from a horizontal position to a vertical position, and the insulating body is formed by a second injection molding on the bent reinforcement member and the insulating block.

[0018] Furthermore, the reinforcement member includes a reinforcement plate and a reinforcement arm formed by bending the end of the reinforcement plate, the insulating body includes a bottom wall and a side wall extending upward from the bottom wall, the reinforcement plate is embedded in the bottom wall, and the reinforcement arm is located on the side wall and is perpendicular to the reinforcement plate.

[0019] Furthermore, the reinforcing arm includes a bent portion formed by bending the end of the reinforcing plate, the bent portion includes a vertical extension portion and a vertical extension portion located in the same plane as the vertical extension portion, the vertical extension portion extends in the height direction of the insulating body, and the vertical extension portion extends in the length direction or width direction of the insulating body.

[0020] Furthermore, the reinforcing arm comprises at least two bent portions formed by bending the end portion of the reinforcing plate, and at least two of the bent portions are arranged at an angle.

[0021] Furthermore, at least two of the bending portions are arranged perpendicular to each other.

[0022] Furthermore, the reinforcing arm is provided with a rubber grabbing structure, and the rubber grabbing structure is injection-molded in the insulating seat.

[0023] Furthermore, the insulating seat includes a bottom plate and a side plate extending upward from the bottom plate, the insulating block includes a main body and an extension portion extending from the main body by bending, the main body is arranged on the side plate, the inner side surface of the main body and at least part of the inner side surface of the side plate are located in the same plane, the extension portion is located on the bottom plate and the upper surface of the extension portion is located in the same plane as the upper surface of the bottom plate.

[0024] Further, along a direction perpendicular to the body, a width of the buffer portion protruding from the side plate portion is smaller than a width of the extension portion.

[0025] Furthermore, the side plate includes connecting walls respectively located on both sides and a mounting wall connected between the two connecting walls, the thickness of the mounting wall is greater than the thickness of the connecting wall, the body of the insulating block is located on the mounting wall, and the buffer surface protrudes from the mounting wall.

[0026] Furthermore, the body of the insulating block is provided with an avoidance hole, the buffer portion is partially located in the avoidance hole and a gap is formed between the buffer portion and the insulating block, and the gap is filled with glue.

[0027] Furthermore, the buffer portion includes a first buffer portion and a second buffer portion, the first buffer portion and the second buffer portion are respectively located on opposite sides of the reinforcement component, the first buffer portion protrudes from the mounting wall, and the second buffer portion is located in the avoidance hole.

[0028] Furthermore, the buffer portion also includes a perforated portion, the first buffer portion and the second buffer portion are respectively fixed at opposite ends of the perforated portion, the reinforcement is provided with a mounting hole, the perforated portion is located in the mounting hole, and the projection area of ​​the first buffer portion and the second buffer portion on the reinforcement is larger than the projection area of ​​the perforated portion on the reinforcement.

[0029] Furthermore, the buffer portion is at least arranged on two opposite sides of the insulating body, and the buffer surface is provided with a horizontally or vertically extending wavy structure.

[0030] The second object of the present invention is achieved by adopting the following technical solution:

[0031] A motor comprises any one of the above-mentioned driving components and a matching component that generates relative motion with the driving component, wherein during the relative motion between the driving component and the matching component, the buffer portion forms a buffering effect for the mutual collision between the driving component and the matching component.

[0032] The third object of the present invention is achieved by adopting the following technical solution:

[0033] A camera assembly includes a lens assembly, and the camera assembly also includes the above-mentioned motor, and the motor drives the lens assembly to move.

[0034] The fourth object of the present invention is achieved by adopting the following technical solution:

[0035] A method for manufacturing a driving component, used to manufacture any of the above-mentioned driving components, comprises the following steps:

[0036] S1: Injection-molding a buffer portion and an insulating block on a reinforcement plate in a horizontal position, so that the buffer portion is located inside the insulating block and a buffer surface of the buffer portion protrudes from a surface of the insulating block;

[0037] S2: The reinforcement plate is bent at least once to form a reinforcement, and the buffer portion and the insulating block are located on the reinforcement arm and transferred from a horizontal position to a vertical position;

[0038] S3: performing injection molding on the bent reinforcement member and the insulating block to form an insulating body.

[0039] Further, in step S1, the buffer portion is injection molded on the reinforcement plate once, and the insulating block is injection molded on the reinforcement plate twice; or, the insulating block is injection molded on the reinforcement plate once, and the buffer portion is injection molded on the reinforcement plate twice; or, the buffer portion and the insulating block are injection molded on the reinforcement plate at the same time.

[0040] Compared with the prior art, the buffer part of the present invention is fixed to the reinforcement part and then combined to the insulating body, which can avoid the buffer part being directly assembled with the insulating body, avoid friction and wear when the buffer part and the insulating body are matched, and can more conveniently integrate the buffer part into the driving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1A perspective view of a first embodiment of a driving member of the present invention;

[0042] Figure 2 An exploded view of a first embodiment of a driving member of the present invention;

[0043] Figure 3 for Figure 2 A three-dimensional view of an insulating seat of a driving member;

[0044] Figure 4 for Figure 2 A perspective view of a second insulating block of a driving member;

[0045] Figure 5 for Figure 2 A three-dimensional view of a buffer portion of a driving member;

[0046] Figure 6 for Figure 2 A perspective view of a reinforcement member of a driving member;

[0047] Figure 7 for Figure 1 A three-dimensional diagram of the local structure of the driving component;

[0048] Figure 8 for Figure 1 A top view of a driving member;

[0049] Fig. 9 for Figure 1 A partial structural cross-sectional view of a driving component;

[0050] Fig.10 A perspective view of a reinforcement member of a second embodiment of a driving member of the present invention;

[0051] Fig.11 It is a three-dimensional diagram of the internal structure of the second embodiment of the driving component of the present invention.

[0052] In the figure: 10, insulating body; 11, insulating seat; 110, bottom plate; 111, side plate; 112, connecting wall; 113, mounting wall; 114, notch; 115, mounting port; 12, first insulating block; 13, second insulating block; 130, main body; 1301, avoidance hole; 131, extension part; 14, side wall; 15, bottom wall; 20, buffer part; 21, first buffer part; 210, first buffer surface; 22, second buffer part; 220, second buffer surface; 23, perforated part; 30, reinforcement piece; 31, reinforcement plate; 310, plate body; 311, horizontal extension part; 32, first bending part; 320, vertical extension part; 321, vertical extension part; 33, second bending part; 34, mounting hole; 35, glue grabbing hole; 40, electronic component; 50, conductive terminal; 60, gap. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0056] The driving member of the present invention can be a fixed motor base or a relatively moving motor bearing member in the camera module. The motor includes a driving member and a matching member that generates relative movement with the driving member. For example, when the driving member is a fixed motor base, the matching member is a relatively moving motor bearing member; when the driving member is a relatively moving motor bearing member, the matching member is a fixed motor base. The driving member and the matching member are prone to collide with each other during the relative movement.

[0057] See also Figure 1 as well as Figure 2 The driving component of the present invention includes a reinforcement member 30, a buffer portion 20 injection-molded on the reinforcement member 30 and an insulating body 10, a conductive terminal 50 embedded in the insulating body 10, and an electronic component 40 fixed and electrically connected to the conductive terminal 50.

[0058] The insulating body 10 is formed by secondary injection molding of plastic. A gap 60 is formed between the insulating body 10 and the buffer portion 20, and the reinforcement 30 is exposed in the gap 60, and the gap 60 can be filled with glue. The insulating body 10 includes a bottom wall and a side wall extending upward from the bottom wall, and the buffer portion 20 is located on the side wall of the insulating body 10. The insulating body 10 includes an insulating seat 11, a first insulating block 12 and a second insulating block 13 fixedly combined with each other by injection molding. The first insulating block 12 is once injection molded on the conductive terminal 50, the second insulating block 13 is once injection molded on the reinforcement 30, and the insulating seat 11 is twice injection molded on the conductive terminal 50, the first insulating block 12 and the second insulating block 13 to form an insulating body 10 with an internal installation space. The reinforcement 30 and part of the conductive terminal 50 are spaced apart from each other and are simultaneously embedded in the secondary injection molded insulating seat 11. The insulating seat 11 includes a bottom plate 110 and a side plate 111 extending from the bottom plate 110, the side plate 111 is perpendicular to the bottom plate 110, and the side plate 111 and the bottom plate 110 form an installation space. The bottom plate 110 and the extension 131 of the second insulating block 13 constitute the above-mentioned bottom wall, and the side plate 111 and the body 130 of the second insulating block 13 constitute the above-mentioned side wall. In other embodiments, the insulating body 10 can also be formed by one-time injection molding of plastic.

[0059] In order to provide a buffer for collision when the driving member moves relative to the matching member, the buffer portion 20 is provided to prevent the driving member and the matching member from being damaged due to collision, and to prevent dust from being generated during collision to affect the optical performance. The buffer portion 20 is provided with a buffer surface facing the installation space, and the buffer surface protrudes from the surface of the insulating body 10.

[0060] The buffer portion 20 is injection molded on the reinforcement member 30 to be fixed to the reinforcement member 30. The height direction of the insulating body 10 is the vertical direction. The projections of the buffer portion 20 and the insulating body 10 in the vertical direction overlap, that is, the buffer portion 20 is embedded and fixed in the insulating body 10. In the embodiment of the present application, a plurality of buffer portions 20 are arranged on the insulating seat 11. The buffer portion 20 is specifically fixed to a local area of ​​the inner side surface of at least one side plate 111 of the insulating seat 11 and protrudes from the inner wall of the side plate 111 to buffer the collision between the driving component and the mating member. The insulating seat 11 may include a rectangular frame-shaped outer plate and may also include an inner plate arranged in the internal installation space. The buffer portion 20 may be arranged on the surface of both the outer plate and the inner plate.

[0061] The buffer portion 20 is at least disposed on two opposite sides of the insulating body 10. Specifically, there are two buffer portions 20, which are respectively disposed on two oppositely disposed side plates 111. In other embodiments, there may be four buffer portions 20, which are respectively disposed on four side plates 111. The two buffer portions 20 are disposed on two parallel side plates 111 in a relative manner, so as to buffer the collision between the driving member and the mating member in the same linear direction of relative motion.

[0062] Please continue reading Figure 3 , each side plate 111 includes two connecting walls 112 respectively located on both sides and a mounting wall 113 connected between the two connecting walls 112. In a preferred embodiment of the present application, the thickness of the mounting wall 113 is greater than the thickness of the connecting wall 112, and the inner side surfaces of the connecting wall 112 and the mounting wall 113 are inclined at an angle. The buffer portion 20 is disposed on the mounting wall 113 and protrudes from the mounting wall 113. In this embodiment, the buffer portion 20 is injection molded on the reinforcement 30, and the second insulating block 13 is injection molded on the reinforcement 30. In order to facilitate the secondary injection molding of the insulating seat 11 on the second insulating block 13, the mounting wall 113 is set to have a greater thickness relative to the connecting wall 112. In other embodiments, the mounting wall 113 may not be limited to having a thickness greater than the connecting wall 112.

[0063] When the insulating seat 11 is secondarily injection molded, two mutually parallel side plates 111 form a notch 114 for accommodating the second insulating block 13. The notch 114 is located on the mounting wall 113 and extends from the side plate 111 to the bottom plate 110, so that the second insulating block 13 can correspond to an L-shaped structure to prevent the slider of the mold from being interfered with by the buffer portion 20 (due to the protruding arrangement of the buffer portion 20) during the injection molding of the insulating seat 11, and thus the problem of being unable to withdraw and thus unable to mold the insulating seat 11. When the insulating seat 11 is secondarily injection molded, two mutually parallel side plates 111 form a mounting opening 115 for accommodating the first insulating block 12. The mounting opening 115 is located on the mounting wall 113.

[0064] Please continue reading Figure 4 as well as Figure 8The second insulating block 13 includes a body 130 and an extension portion 131 extending from the body 130. The extension portion 131 is perpendicular to the body 130 so that the cross section of the second insulating block 13 is L-shaped. In the direction perpendicular to the body 130, the width of the extension portion 131 is greater than the width of the buffer portion 20 protruding from the mounting wall 113. In this way, when the slider of the mold is withdrawn during molding of the insulating seat 11, it will not be affected by the protrusion of the buffer portion 20 from the mounting wall 113, which facilitates the molding of the insulating seat 11. The buffer portion 20 is positioned in the second insulating block 13 to be isolated from the insulating seat 11. The body 130 is provided with a position avoidance hole 1301 to avoid the position of the buffer portion 20 on the reinforcement 30. The position avoidance hole 1301 runs through the body 130. The cross-sectional dimension of the avoidance hole 1301 is larger than the cross-sectional dimension of the buffer portion 20, so that the second insulating block 13 and the buffer portion 20 are spaced to form a gap 60, and the gap 60 prevents the buffer portion 20 formed by the primary injection molding from being impacted or melted during the secondary injection molding of the second insulating block 13. In addition, the reinforcement 30 is exposed to the gap 60, and the gap 60 is filled with glue to increase the bonding force between the buffer portion 20 and the insulating body 10, and prevent the buffer portion 20 from falling off the insulating body 10.

[0065] Please continue reading Figure 5 The buffer portion 20 is waist-shaped and can be formed of an elastically deformable material, such as a silicone material, a TPE material, a TPR material, etc., so as to reduce the impact and noise generated when the driving member collides with the mating member. The buffer portion 20 is injection molded on the reinforcing arm of the reinforcing member 30 so as to be integrated into the insulating body 10 through the reinforcing member 30, so as to avoid friction generated when the buffer portion 20 is directly installed on the insulating body 10, which will cause wear to the buffer portion 20. In other embodiments, the buffer portion 20 can also be fixed to the reinforcing member 30 by assembly.

[0066] Specifically, the buffer portion 20 includes a first buffer portion 21, a second buffer portion 22, and a perforated portion 23 connecting the first buffer portion 21 and the second buffer portion 22. The number of the perforated portions 23 corresponds to the number of the mounting holes 34. In this embodiment, the number of the perforated portions 23 is two, and the two perforated portions 23 are arranged at intervals. The two perforated portions 23 can increase the stability of the buffer portion 20 relative to the reinforcing arm and prevent the buffer portion 20 from being twisted and deformed on the reinforcing arm. The projection area of ​​the first buffer portion 21 and the second buffer portion 22 on the reinforcing arm is larger than the projection area of ​​the perforated portion 23 on the reinforcing arm, so that the contact area of ​​the buffer portion 20 is increased and the buffer portion 20 is prevented from falling off the reinforcing arm. The thickness of the first buffer portion 21 is greater than the thickness of the second buffer portion 22, so that the thickness of the first buffer portion 21 providing actual buffering capacity is larger within a limited thickness range of the side plate 111 to enhance the buffering capacity of the buffer portion 20.

[0067] Please continue reading Fig. 9The first buffer portion 21 has an end away from the reinforcing arm to form a first buffer surface 210, which contacts the mating piece when it collides. The second buffer portion 22 has an end away from the reinforcing arm to form a second buffer surface 220, which is located in the avoidance hole 1301, and the edge of the second buffer portion 22 and the edge of the first buffer portion 21 located in the avoidance hole 1301 form a gap 60 with the avoidance hole 1301. The first buffer surface 210 is provided with a horizontally or vertically extending wavy structure, and the wavy structure of the first buffer surface 210 absorbs the impact caused by the collision and increases the buffering effect.

[0068] Please continue reading Figure 6 , which is the first embodiment of the reinforcement member 30 in the driving component of the present invention. The reinforcement member 30 is embedded in the insulating seat 11 to increase the structural strength of the insulating seat 11 so that the insulating body 10 can be made thin, which is conducive to the miniaturization of the driving component. At the same time, the reinforcement member 30 is made of metal material, which can enable the insulating body 10 to shield electronic signals and avoid signal interference between electronic components 40. Specifically, the reinforcement member 30 includes a reinforcement plate 31 and a reinforcement arm formed by bending the two ends of the reinforcement plate 31, so that the reinforcement member 30 forms a three-dimensional structure by bending, the reinforcement plate 31 is embedded in the bottom wall of the insulating body 10, and the reinforcement arm is located on the side wall of the insulating body 10 and is perpendicular to the reinforcement plate 31. The two reinforcement arms are symmetrical relative to the center of the reinforcement plate 31.

[0069] In the first embodiment, the reinforcing plate 31 includes a plate body 310 and a horizontal extension portion 311 extending from the side of the plate body 310, and the horizontal extension portion 311 is located in the same plane as the plate body 310. The reinforcing arm includes a bending portion, which is a first bending portion 32. The first bending portion 32 includes a vertical extension portion 320 and a vertical extension portion 321. The vertical extension portion 320 and the vertical extension portion 321 are located in the same plane and the plane is perpendicular to the reinforcing plate 31. In this embodiment, the reinforcing plate 31 and the first bending portion 32 are an integral structure formed by integral stamping, and the angle of the vertical extension portion 320 relative to the horizontal extension portion 311 is formed by bending.

[0070] Specifically, the vertical extension portion 320 extends from the end of the horizontal extension portion 311 and extends in the vertical direction, and the vertical extension portion 321 extends from the end of the vertical extension portion 320 and extends in the length direction or width direction of the insulating seat 11, and the vertical extension portion 321 provides an installation position for installing the buffer portion 20. Specifically, the vertical extension portion 321 is provided with two installation holes 34 arranged at intervals, and the installation holes 34 cooperate with the perforated portion 23 to allow the buffer portion 20 to be injection molded on the vertical extension portion 321. The vertical extension portion 321 is also provided with a glue grabbing hole 35, and the glue grabbing hole 35 increases the bonding force between the reinforcing arm and the insulating body 10. In other embodiments, the relative fixation of the buffer portion 20 and the vertical extension portion 321 may not be limited to the form of the installation hole 34. For example, the vertical width of the buffer portion 20 may be greater than the width of the vertical extension portion 321, so that the buffer portion 20 is injection molded and fixed on the vertical extension portion 321. In other embodiments, the bonding force between the vertical extension portion 321 and the insulating body 10 is not limited to the form of the glue grabbing hole 35. For example, a wing portion extending obliquely relative to the main body of the vertical extension portion 321 may be provided to enhance the bonding force between the vertical extension portion 321 and the insulating body 10.

[0071] Please continue reading Fig.10 as well as Fig.11, is a second embodiment of the reinforcement member 30 in the driving member of the present invention. In the second embodiment, the structure of the reinforcement member 30 is substantially the same as that of the first embodiment, except that the reinforcement arm is a three-dimensional structure, that is, it includes parts respectively located in two vertical planes perpendicular to each other. Specifically, the reinforcement member 30 includes a reinforcement plate 31 and two reinforcement arms completed by the ends of the reinforcement plate 31. The two reinforcement arms are symmetrical about the center of the reinforcement plate 31. The reinforcement plate 31 includes a plate body 310 and a horizontal extension portion 311 extending from a corner of the plate body 310, and the horizontal extension portion 311 is located in the same plane as the plate body 310. The reinforcement arm includes two bending portions, namely a first bending portion 32 and a second bending portion 33, and the first bending portion 32 and the second bending portion 33 are respectively located in two vertical planes perpendicular to each other. The first bending portion 32 extends from the end of the horizontal extension portion 311 and extends in the vertical direction. The plane where the first bending portion 32 is located is the plane where the first insulating block 12 is located. The second bending portion 33 is formed by bending the side of the first bending portion 32. The second bending portion 33 is arranged at an angle to the first bending portion 32. Specifically, the second bending portion 33 is perpendicular to the first bending portion 32. The mounting hole 34 is arranged on the second bending portion 33, and the glue grabbing hole 35 is arranged on the second bending portion 33 and the first bending portion 32 at the same time. Preferably, the glue grabbing hole 35 is arranged at the intersection of the first bending portion 32 and the second bending portion 33 to increase the bonding force between the reinforcing arm and the insulating body 10. In the second embodiment of the present application, due to the layout of the conductive terminals 50 in the insulating body 10, the horizontal extensions 311 are positioned at the four corners of the reinforcing plate 31. At this time, in order to allow the second bent portion 33 to have more sufficient fixed molding space, the first bent portion 32 and the second bent portion 33 are respectively located in two mutually perpendicular vertical planes so that the second bent portion 33 is turned toward the center direction of the side plate 111. In other embodiments of the present application, the reinforcing arm does not limit the number of bent portions and the number of times it is bent and turned. The function of the bent portion is to provide sufficient setting space for the injection molding of the second insulating block 13 and the position setting of the extension portion 131 relative to the reinforcing plate 31.

[0072] Please continue reading Figure 1 , the electronic component 40 is positioned on the first insulating block 12, and the electronic component 40 is a coil assembly, an IC, or a printed circuit board with an integrated IC. The coil of the present application can be understood as a coil type such as a wound coil or a printed coil. In the present application, the coil is used to interact with the magnetic assembly to realize the drive of the lens or the blades in the aperture assembly. The IC or the printed circuit board with an integrated IC is used to realize the sensing or calculation control function to realize the refined control of the lens or the blades.

[0073] Please continue reading Figure 2The conductive terminal 50 is embedded in the insulating body 10 and welded to the electronic component 40, so that the electronic component 40 on the two first insulating blocks 12 is electrically connected to the conductive terminal 50. The conductive terminal 50 and the reinforcement member 30 are embedded in the bottom plate 110 at the same time and staggered on the projection of the bottom plate 110. In order to avoid contact between the conductive terminal 50 and the reinforcement member 30, the conductive terminal 50 and the reinforcement member 30 on the bottom plate 110 are located at different heights and separated by plastic.

[0074] The driving member of the present application includes an injection-molded buffer portion 20, an insulating block and an insulating seat 11. The buffer portion 20 not only buffers the impact force between the driving member and other movable parts, but also, by first injection-molding the buffer portion 20 on the reinforcement 30, and then injection-molding the insulating body 10 on the reinforcement 30 and the insulating block, compared with the prior art of secondary injection-molding the buffer portion 20 on the surface of the insulating body 10, the positioning is more convenient and accurate, and when the structure of the molded buffer portion 20 is small or the shape is complex, the buffer portion 20 can be better integrated into the driving member during the injection molding process because it is not limited by the space of the insulating body 10. The second insulating block 13 is spaced around the buffer portion 20 to prevent the impact or melting of the primary injection-molded buffer portion 20 during the secondary injection molding of the second insulating block 13. The extension portion 131 of the second insulating block 13 protrudes from the buffer portion 20 in the horizontal direction to prevent the slider of the mold from being interfered with by the buffer portion 20 (due to the protruding setting of the buffer portion 20) during the injection molding of the insulating body 10 and thus being unable to withdraw and thus being unable to mold the insulating body 10. The first buffer surface 210 of the buffer portion 20 is provided with a horizontally or vertically extending wave-shaped structure to increase the buffering force when other movable parts collide with the buffer portion 20, thereby increasing the buffering effect.

[0075] The present application also relates to a motor, comprising the above-mentioned driving member and a matching member that generates relative motion with the driving member, wherein during the relative motion between the driving member and the matching member, the buffer portion 20 forms a buffering effect for the mutual collision between the driving member and the matching member.

[0076] The present application also relates to a camera assembly, including a lens assembly and the above-mentioned motor, wherein the motor drives the lens assembly to move.

[0077] The present application also relates to a method for manufacturing a driving component, which is used to manufacture the above-mentioned driving component, comprising the following steps:

[0078] S1: Injection-molding a buffer portion 20 and an insulating block on a reinforcement plate in a horizontal position, so that the buffer portion 20 is located inside the insulating block and is spaced relative to the insulating block, and a buffer surface of the buffer portion 20 protrudes from a surface of the insulating block;

[0079] S2: The reinforcement plate is bent at least once to form a reinforcement 30, and the buffer portion 20 and the insulating block are located on the reinforcement arm and transferred from a horizontal position to a vertical position. More specifically, the buffer portion 20 and the body 130 of the insulating block are transferred from an initial horizontal position to a vertical position;

[0080] S3: injection molding the insulating body 10 on the bent reinforcement member 30 and the insulating block.

[0081] Further, in step S1, the buffer portion 20 is injection molded on the reinforcement plate once, and the insulating block is injection molded on the reinforcement plate twice; or, the insulating block is injection molded on the reinforcement plate once, and the buffer portion 20 is injection molded on the reinforcement plate twice; or, the buffer portion 20 and the insulating block are injection molded on the reinforcement plate at the same time. In the embodiment of the present application, the buffer portion 20 and the insulating block are spaced apart from each other and are both injection molded on the reinforcement plate. They can be injection molded separately by two injection moldings using a traditional split injection molding device, or they can be injection molded twice by a two-color molding injection molding device by switching only part of the mold (such as the female mold or the male mold), thereby improving the efficiency of automated injection molding.

[0082] Compared with the prior art, the buffer part 20 of the present invention is fixed to the reinforcement part 30 and then combined to the insulating body 10, so that the buffer part 20 is easier to position, and will not be restricted by the insulating body 10 when the buffer part 20 is injection molded. It can avoid the buffer part 20 being directly assembled with the insulating body 10, thereby avoiding friction and wear when the buffer part 20 and the insulating body 10 are matched, and the buffer part 20 can be more conveniently integrated into the driving component.

[0083] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A driving member, comprising an insulating body and a reinforcement member embedded in the insulating body, characterized in that: The insulating body includes an insulating seat and an insulating block, the insulating block is injection molded on the reinforcement, the insulating seat is injection molded on the insulating block and the reinforcement, the driving member also includes a buffer portion fixed to the reinforcement, the reinforcement is made of metal material, the buffer portion is formed of elastically deformable material, a gap is formed between the buffer portion and the insulating body, the reinforcement is exposed in the gap, the buffer portion is embedded and fixed in the insulating body through the reinforcement, the buffer portion is provided with a buffer surface, the buffer surface protrudes from the surface of the insulating body, and the buffer portion is positioned in the insulating block to be isolated relative to the insulating seat.

2. The driving member according to claim 1, characterized in that: The buffer portion is assembled and fixed to the reinforcement member, or the buffer portion is injection-molded and fixed to the reinforcement member.

3. The driving member according to claim 1, characterized in that: Taking the height direction of the insulating body as the vertical direction, projections of the buffer portion and the insulating body in the vertical direction overlap.

4. The driving member according to claim 1, characterized in that: The driving component is a fixed motor base or a relatively movable motor support. The insulating body includes a bottom wall and a side wall extending upward from the bottom wall. The buffer portion is located on the side wall of the insulating body.

5. The driving member according to claim 1, characterized in that: The buffer portion and / or the insulating block are formed by one-time injection molding on a part of the reinforcement member, the reinforcement member is bent to form a three-dimensional structure and drives at least part of the buffer portion and the insulating block to move from a horizontal position to a vertical position, and the insulating body is formed by a second injection molding on the bent reinforcement member and the insulating block.

6. The driving member according to claim 5, characterized in that: The reinforcement member includes a reinforcement plate and a reinforcement arm formed by bending the end of the reinforcement plate, the insulating body includes a bottom wall and a side wall extending upward from the bottom wall, the reinforcement plate is embedded in the bottom wall, and the reinforcement arm is located on the side wall and is perpendicular to the reinforcement plate.

7. The driving member according to claim 6, characterized in that: The reinforcing arm includes a bent portion formed by bending the end of the reinforcing plate, the bent portion includes a vertical extension portion and a vertical extension portion located in the same plane as the vertical extension portion, the vertical extension portion extends in the height direction of the insulating body, and the vertical extension portion extends in the length direction or width direction of the insulating body.

8. The driving member according to claim 6, characterized in that: The reinforcing arm comprises at least two bent portions formed by bending the end portion of the reinforcing plate, and at least the two bent portions are arranged at an angle.

9. The driving member according to claim 8, characterized in that: At least two of the bending portions are arranged perpendicular to each other.

10. The driving member according to claim 6, characterized in that: The reinforcing arm is provided with a rubber grabbing structure, and the rubber grabbing structure is injection-molded in the insulating seat.

11. The driving member according to claim 5, characterized in that: The insulating seat includes a bottom plate and a side plate extending upward from the bottom plate, the insulating block includes a main body and an extension portion extending from the main body by bending, the main body is arranged on the side plate, the inner side surface of the main body and at least part of the inner side surface of the side plate are located in the same plane, the extension portion is located on the bottom plate and the upper surface of the extension portion is located in the same plane as the upper surface of the bottom plate.

12. The driving member according to claim 11, characterized in that: Along a direction perpendicular to the body, a width of the buffer portion protruding from the side plate portion is smaller than a width of the extension portion.

13. The driving member according to claim 11, characterized in that: The side plate includes connecting walls respectively located on both sides and a mounting wall connected between the two connecting walls, the thickness of the mounting wall is greater than the thickness of the connecting wall, the body of the insulating block is located on the mounting wall, and the buffer surface protrudes from the mounting wall.

14. The driving member according to claim 13, characterized in that: The body of the insulating block is provided with an avoidance hole, the buffer portion is partially located in the avoidance hole and a gap is formed between the buffer portion and the insulating block, and the gap is filled with glue.

15. The driving member according to claim 14, characterized in that: The buffer portion includes a first buffer portion and a second buffer portion, the first buffer portion and the second buffer portion are respectively located on opposite sides of the reinforcement component, the first buffer portion protrudes from the mounting wall, and the second buffer portion is located in the avoidance hole.

16. The driving member according to claim 15, characterized in that: The buffer portion also includes a perforated portion, the first buffer portion and the second buffer portion are respectively fixed at opposite ends of the perforated portion, the reinforcement is provided with a mounting hole, the perforated portion is located in the mounting hole, and the projection area of ​​the first buffer portion and the second buffer portion on the reinforcement is larger than the projection area of ​​the perforated portion on the reinforcement.

17. The driving member according to claim 1, characterized in that: The buffer portion is at least arranged on two opposite sides of the insulating body, and the buffer surface is provided with a horizontally or vertically extending wavy structure.

18. A motor, characterized in that: The motor includes a driving component as described in any one of claims 1 to 17 and a matching component that generates relative motion with the driving component. During the relative motion between the driving component and the matching component, the buffer portion forms a buffering effect for the mutual collision between the driving component and the matching component.

19. A camera assembly, comprising a lens assembly, characterized in that: The camera assembly further comprises a motor as claimed in claim 18, wherein the motor drives the lens assembly to move.

20. A method for manufacturing a driving component, used for manufacturing the driving component according to any one of claims 1 to 17, characterized in that: The following steps are involved: S1: Injection molding the buffer portion and the insulating block on the reinforcement plate in a horizontal position, so that the buffer portion is located inside the insulating block and the buffer surface of the buffer portion protrudes from the surface of the insulating block; S2: The reinforcement member plate is bent at least once to form the reinforcement member, and the buffer portion and the insulating block are located on the reinforcement member and transferred from a horizontal position to a vertical position; S3: performing injection molding on the bent reinforcement member and the insulating block to form the insulating seat.

21. The method for manufacturing a driving component according to claim 20, characterized in that: In step S1, the buffer portion is injection molded on the reinforcement plate once, and the insulating block is injection molded on the reinforcement plate twice; or, the insulating block is injection molded on the reinforcement plate once, and the buffer portion is injection molded on the reinforcement plate twice; or, the buffer portion and the insulating block are injection molded on the reinforcement plate at the same time.

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