CN214795362U - Lens barrel assembly - Google Patents

Abstract

The utility model relates to a lens cone subassembly, including plastic base and lens mounting structure, lens mounting structure is equipped with the mirror room and is used for installing a lens, lens mounting structure has a central axis, the plastic base has a top surface, one bottom surface that sets up relatively with the top surface and forms first surface and a plurality of other surfaces between the two, first surface with the distance of central axis is greater than other surfaces with the distance of central axis, the central axis with first surface has a first distance, the plastic base through the secondary forming technique with first embedded portion shaping in the plastic base is in order to form lens mounting structure. The problem of uneven wall thickness of the rectangular lens cone assembly is solved through the secondary forming technology, and the roundness difference of the lens cone assembly is improved, so that after the lens cone assembly and the lens are assembled, the edge gap is small, and the optical stability of the camera is good.

Description

Lens barrel assembly

Technical Field

The utility model belongs to the technical field of an electronic equipment's camera device technique and specifically relates to a lens cone subassembly is related to.

Background

With the rapid development of multimedia technology, digital cameras, video cameras and mobile phones with cameras are increasingly popular with consumers, and people have increased demands on products such as digital cameras, video cameras and mobile phones with cameras while making higher demands on the quality of images of objects shot by the digital cameras, video cameras and mobile phone cameras. In an image pickup apparatus such as a digital camera, a video camera, and a camera of a cellular phone, a lens barrel assembly is an indispensable component. The traditional lens cone is mostly circular and is prepared through one-step forming technology, and due to the assembly requirements of other components, the circular lens cone needs to be changed into a structure with a rectangular or square outer contour, and the lens cone is still prepared through one-step forming technology.

For example, in the utility model CN212781448U, a square lens barrel manufactured by one-step molding technique is disclosed, which is characterized in that the wall thickness around the lens barrel is not uniform, the roundness of the inner lens in the lens barrel chamber is poor, and after the lens barrel chamber is deformed and assembled with the transparent lens, the edge gap is large, which causes the poor optical stability.

Therefore, there is a need to provide a new lens barrel assembly to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lens cone subassembly to solve one shot forming's rectangle or irregular polygon lens cone because of the not uniform circularity that arouses of perisporium thickness is poor, thereby influences the poor problem of optical stability of camera.

The purpose of the invention is realized by the following technical scheme: a lens cone component comprises a plastic base and a lens mounting structure formed by a part of the plastic base, wherein a lens chamber is arranged in the lens mounting structure and used for mounting lenses, the lens mounting structure is provided with a central axis, the plastic base is provided with a top surface, a bottom surface opposite to the top surface, a first outer surface and a plurality of other outer surfaces, the first outer surface and the plurality of other outer surfaces are formed between the top surface and the bottom surface, the central axis is away from the first outer surface to form a first distance, the distance between the central axis and the other outer surfaces is smaller than the first distance, the lens mounting structure is provided with a circular inner peripheral surface and an outer peripheral surface opposite to the inner peripheral surface, a first embedded part is arranged in the part of the plastic base between the outer peripheral surface and the first outer surface, and the plastic base is embedded in the plastic base through a secondary forming technology, the first embedded part is located outside the lens mounting structure and connected with the outer peripheral surface of the lens mounting structure, the distance between the inner peripheral surface and the outer peripheral surface is the wall thickness of the lens mounting structure, a third distance is formed between the central axis and the outer peripheral surface, and the third distance is smaller than the first distance.

Further, the first embedded portion has a first inner side surface which is substantially a cambered surface and a first outer side surface which is opposite to the first inner side surface and is a straight surface, the first inner side surface is connected with the outer peripheral surface of the lens mounting structure and has a shortest fourth distance with the inner peripheral surface, and the ratio of the fourth distance to the wall thickness of the lens mounting structure is between 0.75 and 1.25.

Further, the sum of the third distance and the thickness of the thinnest position of the first embedded part is smaller than the first distance.

Further, the first embedded portion is embedded in the plastic base and has the first outer side surface exposed to the first outer surface, and the sum of the third distance and the thickness of the thinnest position of the first embedded portion is equal to the first distance.

Further, the plastic base has a second outer surface formed between the top surface and the bottom surface, the central axis has a second distance from the second outer surface, the second distance is greater than the distance between the other outer surfaces and the central axis, a second embedded portion is disposed in a portion of the plastic base located between the outer peripheral surface and the second outer surface, the second embedded portion is embedded and formed in the plastic base by an overmolding technique, the second embedded portion has a second inner side surface substantially in a curved surface shape and a second outer side surface opposite to the second inner side surface, the second inner side surface and the inner peripheral surface have a shortest fifth distance, and the fifth distance is the same as the wall thickness of the lens mounting structure.

Further, the sum of the third distance and the thickness of the thinnest position of the second embedded portion is not greater than the second distance.

Further, the plastic base is substantially rectangular and has a middle portion located at a middle position, a top portion protruding upward from the middle portion, and a bottom portion located below the middle portion, and the first embedded portion is at least disposed at the middle portion.

Furthermore, a conductive terminal is arranged in the first embedded part, the conductive terminal and the first embedded part are arranged in the plastic base through secondary forming and located on one side of the lens mounting structure, and the conductive terminal is exposed on the top surface of the plastic base.

Furthermore, the conductive terminals include a first conductive terminal and a second conductive terminal, each of the conductive terminals has a holding portion held in the first embedded portion, a contact portion extending upward from the holding portion and exposed above the plastic base, and a soldering portion extending downward from the holding portion, the first conductive terminal has a soldering portion, the second conductive terminal has two soldering portions, and the holding portion is substantially arc-shaped.

Furthermore, the top portion is provided with a concave groove inwards in the first outer surface, the contact portion of the conductive terminal is exposed to the plastic base through the concave groove, and the first embedded portion is arranged in the middle portion.

Furthermore, the plastic base is provided with a groove inwards at least in the middle part of the other outer surfaces, and the depth of the groove is smaller than the distance from the inner peripheral surface to the other outer surfaces.

Further, the bottom is also provided with an installation cavity communicated with the mirror chamber and a boss arranged above the installation cavity and used for isolating the mirror chamber from the installation cavity.

The utility model provides a base combination, through adopting the secondary forming technique, the first embedded portion of earlier one shot forming, later rethread secondary forming technique is with the shaping of first embedded portion in the plastic base to improve the real circularity behind the secondary injection moulding of lens mounting structure, when guaranteeing lens mounting structure and lens equipment, the clearance between lens mounting structure's inner peripheral surface and the lens is littleer, and the optical stability of camera is better.

Drawings

Fig. 1 is a perspective view of a lens barrel assembly according to a first embodiment of the present invention.

Fig. 2 is a perspective view of fig. 1 from another angle.

Fig. 3 is a partially exploded perspective view of a lens barrel assembly according to a first embodiment of the present invention.

Fig. 4 is a partially exploded perspective view from another perspective of fig. 3.

Fig. 5 is an exploded perspective view of a lens barrel assembly according to a first embodiment of the present invention.

Fig. 6 is an exploded perspective view of fig. 5 from another perspective.

Fig. 7 is a cross-sectional view through the first inlay portion taken along line a-a in fig. 1.

Fig. 8 is a cross-sectional view through the first inlay portion taken along line B-B in fig. 1.

Fig. 9 is a sectional view in the same direction as fig. 7 of the second embodiment of the present invention.

Fig. 10 is a sectional view in the same direction as fig. 7 in a third embodiment of the present invention.

Description of the main elements

Referring to the following drawings, a lens barrel assembly 100/100 '/100 ", a plastic base 1, a lens mounting structure 10, a lens chamber 101, a central axis 0-0, an inner circumferential surface 103, an outer circumferential surface 104, a concave groove 105, a wall thickness D0/D0'/D0", a top surface 11, a bottom surface 12, a first outer surface 13, a second outer surface 14, a groove 102, a first embedded portion 15/15 '/15 ", a first inner side surface 151/151', a first outer side surface 152/152 '/152", a first thin region 153/153', a first thickness D1/D1 ', a first thickened region 154/154', a second embedded portion 16, a second inner side surface 161, a second outer side surface 162, a second thin region 163, a second thickness D2, a second thickened region 164, a top portion 17, an intermediate portion 18, a bottom portion 19, a mounting cavity 190, a boss 191, a conductive terminal 2, the first conductive terminal 21, the second conductive terminal 22, the holding portion 23, the arc-shaped outer side 231, the inner protrusion 232, the contact portion 24, the soldering portion 25, the first distance d1/d1 '/d 1 ", the second distance d2/d 2'/d 2", the third distance d3/d3 '/d 3 ", the fourth distance d4/d 4', the fifth distance d5, the first area S1, the second area S2, and the third area S3.

The following detailed description of the invention will be made in conjunction with the above-described drawings.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or component to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The lens cone component of the camera device in the prior art is mostly circular and is prepared by one-step molding technology, and the circular lens cone component needs to be changed into a structure with a rectangular or square outline due to the assembly requirements of the lens cone component and other components. When the lens barrel assembly is manufactured by adopting a one-step molding technology, the lens barrel assembly is formed in a one-step injection molding mode due to the fact that the wall thickness of the periphery of the lens chamber is not uniform, the roundness of the lens chamber of the lens barrel is poor, and after the lens barrel assembly is assembled with a transparent lens, the fit edge gap is large, and the optical stability of an image pickup device is poor. The utility model discloses in through adopting the post forming technique, at first the first embedded portion 15 of one shot forming on conductive terminal 2, later rethread post forming technique with first embedded portion 15 and conductive terminal 2 shaping in the wall thickness D0 of plastic base 1 to form columniform lens mounting structure 10 in the periphery of mirror room 101, columniform lens mounting structure 10's post forming's wall thickness keeps evenly, in order to improve the real circularity of mirror room 101 behind the shaping lens cone subassembly 100. When the lens chamber 101 is assembled with the lens, the clearance between the inner peripheral surface 103 of the lens chamber 101 and the lens is smaller, and the optical stability of the camera device is better. For the lens barrel assembly 100 with other irregular outer contour shapes, in order to uniform the wall thickness of the lens mounting structure 10 formed in two-shot molding, a two-shot molding technique may be used to form a plurality of embedded portions, and for different wall portions, a two-shot molding technique is used to make the thickness of each wall of the lens mounting structure 10 formed in two-shot molding more uniform, improve the roundness of the formed lens chamber 101, make the lens chamber 101 closer to the circle of the theoretical value, and make the optical stability of the camera device better. Hereinafter, a detailed description will be given.

The present invention relates to three embodiments, wherein in the first embodiment, one side of the plastic base 1 of the lens barrel assembly 100 is provided with a first outer surface 13, a first embedded portion 15 formed in one step is correspondingly disposed at a portion between the first outer surface 13 and the outer peripheral surface 104, and the first embedded portion 15 is located outside the outer peripheral surface 104 of the lens mounting structure 10 and is covered in the plastic base 1; the first embedded part 15' of the second embodiment is exposed to the first outer surface 13 and only partially covered by the plastic base 1; in the third embodiment, in addition to the first embedded portion 15, the plastic base 1 also has a second embedded portion 16 embedded between the outer peripheral surface 104 and a second outer surface 14, wherein the second embedded portion 16 may be the same as the first embedded portion 15 in the first embodiment, or the second embedded portion 16 may be the same as the first embedded portion 15' in the second embodiment, and the same reference numerals are used for the other same parts.

Referring to fig. 1 to 8, the lens barrel assembly 100 includes a plastic base 1 and a lens mounting structure 10 formed by a portion of the plastic base 1. A lens chamber 101 is formed in the lens mounting structure 10 for mounting a lens (not shown). The lens mounting structure 10 has a central axis 0-0. The plastic base 1 has a top surface 11, a bottom surface 12 opposite to the top surface 11, and a first outer surface 13 and other outer surfaces formed between the top surface 11 and the bottom surface 12. The first outer surface 13 and the other outer surfaces are both referred to as a wall surface. In the first embodiment, the other outer surface includes a second outer surface 14. The lens mounting structure 10 has a circular inner peripheral surface 103 and an outer peripheral surface 104 connecting the first embedded portion 15, and the distance between the inner peripheral surface 103 and the outer peripheral surface 104 is the wall thickness D0 of the lens mounting structure 10. The central axis 0-0 is a first distance d1 from the first outer surface 13, the central axis 0-0 is a second distance d2 from the second outer surface 14, and the central axis 0-0 is a third distance d3 from the peripheral surface 104. The distance between the first outer surface 13 and the central axis 0-0 (the first distance d1) is greater than the distance between the other outer surfaces of the plastic base 1 and the central axis 0-0, i.e. the distance between the central axis and the other outer surfaces is less than the first distance d 1. Referring to fig. 7 and 8, the third distance d3 is smaller than the second distance d2, and the second distance d2 is smaller than the first distance d1, i.e., d3 < d2 < d 1. In other embodiments, the d3 may also be equal to d 2.

At least one of the first outer surface 13 and the second outer surface 14 is located at a distance of 0-0 from the central axis, which is greater than the distance of 0-0 from the central axis to the other outer surfaces of the plastic base 1. That is, if the plastic base 1 is formed by one-step molding, the wall thickness D0 of the lens mounting structure 10 corresponding to the first outer surface 13 or the second outer surface 14 is greater than the wall thickness D0 of the lens mounting structure 10 corresponding to the other outer surfaces. It is desirable to have a uniform wall thickness D0 of the lens mounting structure 10 at least one of the first outer surface 13 and the second outer surface 14. However, in the present invention, the relative position relationship between the first outer surface 13 and the second outer surface 14 is not limited, and the first outer surface 13 and the second outer surface 14 may be disposed opposite to each other or may be disposed adjacent to each other.

In the first embodiment, it is desirable to uniform the wall thickness D0 of the lens mounting structure 10 at the first outer surface 13. Namely, the plastic base 1 has the first embedded portion 15 in the portion between the first outer surface 13 and the outer peripheral surface 104, and the plastic base 1 molds the first embedded portion 15 in the plastic base 1 by the secondary molding technique. At this time, the first embedded portion 15 is embedded in the plastic base 1 and is not exposed to the air. And the first embedded portion 15 is generally arc-shaped to fit the outer peripheral surface 104 of the lens mounting structure 10. The first embedded portion 15 has a first inner side surface 151 having a substantially arc surface and a first outer side surface 152 having a straight surface opposite to the first inner side surface 151. The first embedded portion 15 includes a first thin region 153 located at the middle position and a pair of first thickened regions 154 located at both sides of the first thin region 153 and having a thickness greater than that of the first thin region 153. The thickness of the first thin section 153 is a first thickness D1. The first inner side surface 151 is an inner side surface of the first thin region 153 and the first thickened region 154, and the first outer side surface 152 is an outer side surface of the first thin region 153 and the first thickened region 154. The first inner side surface 151 is connected to the outer circumferential surface 104 and has a shortest fourth distance d4 with the inner circumferential surface 103. The shortest fourth distance d4 is a distance between the first inner side surface 151 of the first thin section 153 and the inner peripheral surface 103. The fourth distance D4 is substantially the same as the wall thickness D0 at the other outer surface of the lens mounting structure 10 (in the present invention, "the same as the wall thickness D0" is understood to mean that the wall thickness at each position of the lens mounting structure 10 is substantially the same, i.e., to ensure that the wall thickness D0 is as uniform as possible, and in the most preferred embodiment, the ratio of the fourth distance D4 to the wall thickness D0 at the other outer surface of the lens mounting structure 10 is between 0.75 and 1.25, and includes both end values of 0.75 and 1.25). The sum of the third distance d3 and the thickness of the thinnest point of the first embedded portion 15 (i.e., the first thin section 153) is less than the first distance d 1. That is, the sum of the third distance D3 and the first thickness D1 is smaller than the first distance D1, D3+ D1 < D1, please refer to fig. 7.

In the second embodiment, referring to fig. 9, it is required to uniform the wall thickness D0 'of the lens mounting structure 10 on the first outer surface 13 side of the lens barrel assembly 100'. The first embedded portion 15 'is embedded in the plastic base 1 and has a first outer side 152' exposed to the first outer surface 13. The second embodiment is different from the first embodiment in that: the first outer side surface 152 'of the first embedded portion 15' in the second embodiment is exposed to the first outer surface 13. The first embedded portion 15 'also has a first inner side surface 151' with a generally arc surface and a first outer side surface 152 'with a straight surface opposite to the first inner side surface 151'. The first embedded portion 15 ' is further provided with a first thin region 153 ' located at the middle position and a pair of first thickened regions 154 ' located at both sides of the first thin region 153 ' and having a thickness greater than that of the first thin region 153 '. The thickness of the first thin section 153 'is a first thickness D1'. The central axis 0-0 is a second distance d 2' from the second outer surface 14. The first inner side surface 151 'has a shortest fourth distance d 4' with the inner circumferential surface 103. The fourth distance D4 'is then substantially the same as the wall thickness D0' at other locations of the lens mounting structure 10. The sum of the third distance d3 'and the thickness of the thinnest point of the first inset 15' (i.e., the first thinned region 153 ') is equal to the first distance d 1'. That is, the sum of the third distance D3 ' and the first thickness D1 ' is equal to the first distance D1 ', please refer to fig. 9. The first outer side 152' is flush with the first outer surface 13 of the plastic base 1.

In the third embodiment, please refer to fig. 10, it is required to uniform the wall thickness D0 ″ of the lens mounting structure 10 at the first outer surface 13 and the second outer surface 14 of the lens barrel assembly 100 ″. The distance from the central axis 0-0 to the first outer surface 13 is now a first distance d1 ", the distance from the central axis 0-0 to the second outer surface 14 is now a second distance d 2", and the central axis 0-0 is now a third distance d3 "from the peripheral surface 104. In the third embodiment, a first embedded portion 15 "is provided at a portion between the first outer surface 13 and the outer circumferential surface 104 of the plastic base 1, and a second embedded portion 16 is provided at a portion between the second outer surface 14 and the outer circumferential surface 104 of the plastic base 1. The first embedded portion 15 ″ and the second embedded portion 16 are located outside the outer peripheral surface 104, and the plastic base 1 molds the first embedded portion 15 ″ and the second embedded portion 16 in the plastic base 1 through a secondary molding technology. The first embedded portion 15 ″ is the same as the first embedded portion 15' in the second embodiment. The second inset portion 16 is generally arcuate to mate with the outer peripheral surface 104 of the lens mounting structure 10. The second embedded portion 16 has a second inner side surface 161 with a generally arc surface and a second outer side surface 162 with a straight surface opposite to the second inner side surface 161. The second embedded portion 16 further includes a second thin region 163 located at a middle position, and a pair of second thickened regions 164 located at both sides of the second thin region 163 and having a thickness greater than that of the second thin region 163. The thickness of the second thin section 163 is a second thickness D2. The second inner side surface 161 is an inner side surface of the second thin region 163 and the second thickened region 164, and the second outer side surface 162 is an outer side surface of the second thin region 163 and the second thickened region 164. The second inner side surface 162 has a shortest fifth distance d5 with the inner circumferential surface 103. The shortest fifth distance d5 is a distance between the second inner side surface 161 of the second thin section 163 and the inner peripheral surface 103. The fifth distance D5 is then substantially the same as the wall thickness D0 "at the other outer surface. The sum of the third distance d3 ″ and the thickness of the thinnest point of the second embedded portion 16 (i.e., the second thinned region 163) is not greater than the second distance d2 ″. That is, the sum of the third distance D3 ″ and the second thickness D2 is not greater than the second distance D2', please refer to fig. 10. In this case, the second embedded portion 16 may be provided in the same manner as the first embedded portion 15 in the first embodiment, or in the same manner as the first embedded portion 15' in the second embodiment. When the second embedded section 16 is the same as the first embedded section 15 in the first embodiment, the sum of the third distance D3 ″ and the second thickness D2 is smaller than the second distance D2 "; when the second embedded portion 16 is the same as the first embedded portion 15' in the second embodiment, the sum of the third distance D3 ″ and the second thickness D2 is equal to the second distance D2 ″ when the second outer side 162 is flush with the second outer surface 14 of the plastic base 1. Of course, the first embedded portion 15 ″ in the third embodiment is the same as the first embedded portion 15 in the first embodiment, and may also be the same as the first embedded portion 15' in the second embodiment, and the description thereof is omitted. In a third embodiment, please refer to fig. 10, the first embedded portion 15 "is the same as the first embedded portion 15" in the second embodiment, and the second embedded portion 16 is also the same as the first embedded portion 15 "in the second embodiment, that is, the first outer surface 13 is flush with the first outer side 152", and the second outer surface 14 is flush with the second outer side 162.

The utility model discloses in, plastic base 1 has the outline that generally is the rectangle to have the second region S2 that is located the intermediate position, certainly the first region S1 that the second region S2 upwards stretched out and formed and be located the third region S3 of second region S2 below, first embedded portion 15 set up in second region S2. The plastic base 1 includes a top portion 17 having the top surface 11, a bottom portion 19 having the bottom surface 12, and a middle portion 18 between the top portion 17 and the bottom portion 19. The first embedded portion 15 is at least partially disposed in the intermediate portion 18. The top 17 is recessed inwardly from the first outer surface 13 to form a recessed groove 105. The lens mounting structure 10 is provided in the top portion 17 and the intermediate portion 18, and the first embedded portion 15 or the second embedded portion 16 requiring the uniform wall thickness D0 is provided only in the second region S2 corresponding to the intermediate portion 18. In the present invention, the first embedded portion 15 and the second embedded portion 16 are provided in the intermediate portion 18. The top portion 17 corresponds to a first region S1, the middle portion 18 corresponds to a second region S2, and the bottom portion 19 corresponds to a third region S3. As can be seen from fig. 1 to 8, the wall thickness D0 of the lens mounting structure 10 is substantially uniform throughout the area protruding from the top 17 of the plastic base 1, i.e., the first area S1. An installation cavity 190 communicated with the mirror chamber 101 is formed in the bottom 19, and a protruding boss 191 for isolating the mirror chamber 101 from the installation cavity is arranged between the mirror chamber 101 and the installation cavity 190. In order to enable the lens barrel assembly 100 to capture high-quality images, two or more lenses (not shown) are usually accommodated in the lens chamber 101 of the lens mounting structure 10, and the diameter of the lens on the image side (upper end) of the lens barrel assembly 100 is larger among the lenses. In order to tightly couple a plurality of lenses having different diameters to the lens mounting structure 10 without increasing the volume of the lens barrel assembly 100, the wall thickness D0 of the lens mounting structure 10 is generally configured to decrease stepwise from the object side (lower end) to the image side (upper end), resulting in a gradually increasing wall thickness D0 at the lower portion of the lens mounting structure 10 relative to the upper portion. Therefore, the outer wall near the lower portion of the lens mounting structure 10 is recessed with a groove 102, and at least a portion of the other outer surface of the middle portion 18 is recessed with the groove 102, so as to reduce the material of the plastic base 1, so that the material around the lens mounting structure 10 is uniform, and the purpose of uniform wall thickness D0 is achieved. The depth of the groove 102 is smaller than the distance from the inner circumferential surface 103 to the other outer surface. In other embodiments, the groove 102 does not define the arrangement position, and the groove 102 is only required to be arranged on the outer side where the wall thickness needs to be reduced.

The lens barrel assembly 100 further includes a conductive terminal 2 to communicate the upper and lower components to achieve current conduction. The conductive terminals 2 are exposed on the top surface 11 of the plastic base 1. The conductive terminal 2 is formed in the first embedded portion 15 by one-step forming, and the conductive terminal 2 and the first embedded portion 15 are formed in the plastic base 1 by secondary forming technology and located on one side of the lens mounting structure 10. The conductive terminals 2 include a first conductive terminal 21 and a second conductive terminal 22. Each of the conductive terminals 2 has a holding portion 23 held in the first embedded portion 15, a contact portion 24 extending upward from the holding portion 23 and exposed above the plastic base 1, and a soldering portion 25 extending downward from the holding portion 23. The first conductive terminal 21 has one of the soldering portions 25, and the second conductive terminal 22 has two of the soldering portions 25. The holding portion 23 is generally arc-shaped to fit the first thin section 153 of the first embedded portion 15, and has an arc-shaped outer side 231 on the outer side and an inner protruding portion 232 on the inner side. The inner protruding portions 232 of the first conductive terminal 21 and the second conductive terminal 22 are disposed opposite to each other. The contact portion 24 of the conductive terminal 2 is exposed to the plastic base 1 through the concave groove 105.

The utility model discloses in, first on conductive terminal 2 through the first embedded portion 15 of the first one-shot forming of mode of ejection molding (or second embedded portion 16) first embedded portion 15 (or second embedded portion 16) is through ejection molding's mode post forming plastic base 1 is in order to form lens mounting structure 10, and the order the wall thickness of lens mounting structure 10 each department is even for the true circularity of lens room 101 of lens mounting structure 10 is better, when lens mounting structure 10 assembles with the lens, the clearance between lens room 101 and the lens is littleer, and lens cone assembly 100's optical stability is better.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

The above description is only a partial embodiment of the present invention, not all embodiments, and any equivalent changes that the technical solutions of the present invention take are covered by the claims of the present invention through reading the present invention.

Claims (12)

1. A lens barrel assembly comprises a plastic base and a lens mounting structure formed by a part of the plastic base, wherein a lens chamber is arranged in the lens mounting structure and used for mounting lenses, the lens mounting structure is provided with a central axis, the plastic base is provided with a top surface, a bottom surface opposite to the top surface, a first outer surface and a plurality of other outer surfaces, the first outer surface and the plurality of other outer surfaces are formed between the top surface and the bottom surface, the central axis forms a first distance from the first outer surface, the distance between the central axis and the other outer surfaces is smaller than the first distance, and the lens mounting structure is provided with a circular inner peripheral surface and an outer peripheral surface opposite to the inner peripheral surface, and the lens barrel assembly is characterized in that: the plastic base is located the outer peripheral face with have first embedded portion in the part between the first surface, the plastic base will through the post forming technique first embedded portion inlays and locates in the plastic base, first embedded portion is located outside the lens mounting structure and connect the lens mounting structure the outer peripheral face, the inner peripheral face with distance between the outer peripheral face is lens mounting structure's wall thickness, the central axis with the outer peripheral face forms the third distance, the third distance is less than first distance.

2. The lens barrel assembly according to claim 1, wherein: the first embedded part is provided with a first inner side face which is generally in a cambered surface shape and a first outer side face which is opposite to the first inner side face and is in a straight surface shape, the first inner side face is connected with the outer peripheral face of the lens mounting structure, a shortest fourth distance is arranged between the first inner side face and the inner peripheral face, and the ratio of the fourth distance to the wall thickness of the lens mounting structure is between 0.75 and 1.25.

3. The lens barrel assembly according to claim 2, wherein: the sum of the third distance and the thickness of the thinnest position of the first embedded part is smaller than the first distance.

4. The lens barrel assembly according to claim 2, wherein: the first embedded part is embedded in the plastic base and provided with a first outer side surface exposed to the first outer surface, and the sum of the third distance and the thickness of the thinnest position of the first embedded part is equal to the first distance.

5. The lens barrel assembly according to claim 1, wherein: the plastic base is provided with a second outer surface formed between the top surface and the bottom surface, the central axis has a second distance from the second outer surface, the second distance is larger than the distance between the other outer surfaces and the central axis, a second embedded part is arranged in the part of the plastic base, which is positioned between the outer peripheral surface and the second outer surface, the second embedded part is embedded and formed in the plastic base through an over-molding technology, the second embedded part is provided with a second inner side surface which is generally in a cambered surface and a second outer side surface which is opposite to the second inner side surface and is in a straight surface, the second inner side surface and the inner peripheral surface have a shortest fifth distance, and the fifth distance is the same as the wall thickness of the lens mounting structure.

6. The lens barrel assembly according to claim 5, wherein: the sum of the third distance and the thickness of the thinnest position of the second embedded part is not larger than the second distance.

7. The lens barrel assembly according to claim 1, wherein: the plastic base is generally rectangular and is provided with a middle part positioned in the middle, a top part formed by upwards protruding from the middle part and a bottom part positioned below the middle part, and the first embedded part is at least arranged in the middle part.

8. The lens barrel assembly according to claim 7, wherein: the first embedded part is internally provided with a conductive terminal, the conductive terminal and the first embedded part are arranged in the plastic base through secondary forming and positioned on one side of the lens mounting structure, and the conductive terminal is exposed on the top surface of the plastic base.

9. The lens barrel assembly according to claim 8, wherein: the conductive terminals include a first conductive terminal and a second conductive terminal, each conductive terminal has a holding portion held in the first embedded portion, a contact portion extending upward from the holding portion and exposed above the plastic base, and a soldering portion extending downward from the holding portion, the first conductive terminal has a soldering portion, the second conductive terminal has two soldering portions, and the holding portion is substantially arc-shaped.

10. The lens barrel assembly according to claim 9, wherein: the top is provided with a concave groove inwards on the first outer surface, the contact part of the conductive terminal is exposed to the plastic base through the concave groove, and the first embedded part is arranged in the middle part.

11. The lens barrel assembly according to claim 7, wherein: the plastic base is at least provided with a groove inwards at the other outer surfaces of the middle part, and the depth of the groove is smaller than the distance from the inner peripheral surface to the other outer surfaces.

12. The lens barrel assembly according to claim 7, wherein: the bottom is also provided with an installation cavity communicated with the mirror chamber and a boss arranged above the installation cavity and used for isolating the mirror chamber from the installation cavity.

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