Periscopic lens driving device

Abstract

The utility model belongs to the technical field of optical imaging equipment, and particularly relates to a periscopic lens driving device. The periscopic lens driving device comprises a base, a prism carrier and a zoom carrier are arranged in the base, and a supporting groove is formed in the bottom end of the prism carrier; a supporting protrusion is arranged in the base, a supporting ball is arranged on the supporting protrusion, the supporting protrusion extends upwards into the prism carrier, and the supporting ball abuts against the interior of the supporting groove. The supporting protrusions and the supporting balls are organically arranged on the base, the supporting balls serve as fulcrums, the prism carrier is enabled to nodding and shaking under the supporting action of the fulcrums, the prism carrier is equivalently suspended in the base through the supporting balls, the prism carrier is enabled to move more conveniently, and moving resistance of the prism carrier is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical imaging equipment, and in particular relates to a periscope lens driving device. Background Art

[0002] With the development of technology, many electronic devices (such as smart phones or digital cameras) now have the function of taking photos or recording videos. These electronic devices are becoming more and more popular and are developing in the direction of convenient and lightweight designs to provide users with more choices.

[0003] Among them, the periscope lens is used in lightweight design because it can greatly reduce the thickness and weight of the entire device. The periscope lens structure usually includes two parts, namely the lens part and the prism part, in which the prism part is arranged at the front end, and the imaging chip is arranged at the rear end of the lens part. The light is reflected by the prism part to convert the light path to the lens part, and then zoomed through the lens part to the imaging chip.

[0004] The prism part of the periscope lens generally includes a prism carrier and a prism on it. The prism carrier is set on a base, and it nods and shakes its head on the base with the prism to change the angle of light. When the prism carrier makes corresponding movements, since the prism carrier and the base are both hard-connected structures, there is often a movement blockage phenomenon when the prism carrier nods and shakes its head. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems and provides a periscope lens driving device.

[0006] A periscope lens driving device comprises a base, wherein a prism carrier for mounting a prism and a zoom carrier for mounting a lens are arranged in the base, and a supporting groove is arranged at the bottom end of the prism carrier;

[0007] A supporting protrusion is arranged in the base, a supporting ball is arranged on the supporting protrusion, the supporting protrusion extends upward into the prism carrier, and the supporting ball abuts against the supporting groove.

[0008] The utility model organically arranges supporting protrusions and supporting balls on the base and uses the supporting balls as fulcrums, so that the prism carrier can nod and shake its head under the support of the fulcrums. The prism carrier is equivalent to being suspended in the base by the supporting balls, which makes the movement of the prism carrier easier and reduces the activity resistance of the prism carrier.

[0009] Optionally, the base and the supporting protrusion are integrally formed.

[0010] Optionally, the base further has a reed, the supporting protrusion passes through the middle of the reed, the edge of the reed is connected to the base, and the middle of the reed is connected to the bottom end of the prism carrier.

[0011] Optionally, a prism carrier mounting hole is provided in the middle of the reed, and a base mounting hole is provided at the edge of the reed;

[0012] The base is provided with a welding avoidance hole which is connected up and down, the welding avoidance hole is arranged correspondingly to the prism carrier mounting hole up and down, and the lower end cover of the welding avoidance hole is provided with a bottom baffle for shielding the welding avoidance hole.

[0013] Optionally, the periscope lens driving device further comprises a shell, the shell cover is arranged on the base, and the shell is provided with a shell positioning groove;

[0014] The outer wall of the base is provided with a circuit board, and the circuit board is provided with a positioning avoidance hole;

[0015] A positioning protrusion is arranged at one end of the base, and the positioning protrusion is arranged opposite to the positioning avoidance hole and the positioning groove of the shell inside and outside.

[0016] Optionally, a fixed baffle plate for limiting the zoom carrier and the lens is provided at the top end of the zoom carrier, and the fixed baffle plate is fixed to the upper end of the base.

[0017] Optionally, a prism built-in metal is pre-embedded in the prism carrier, and a support groove for abutting against the support ball is provided in the middle of the prism built-in metal.

[0018] Optionally, the periscope lens driving device also includes a prism driving component, and the prism driving component drives the prism carrier to nod or shake its head.

[0019] Optionally, the prism driving assembly includes a nodding magnet, a shaking head magnet, a nodding coil and a shaking head coil, and the nodding magnet and the shaking head magnet are respectively mounted on adjacent side walls of the prism carrier;

[0020] A circuit board is arranged on the base, and the nodding coil and the shaking head coil are integrated on the circuit board. The nodding coil is arranged opposite to the nodding magnet, and the shaking head coil is arranged opposite to the shaking head magnet.

[0021] Optionally, a plurality of base coil avoidance grooves connected inside and outside are respectively arranged on the side walls of the base, and the nodding coil and the shaking coil are respectively arranged along the inner wall of a corresponding base coil avoidance groove.

[0022] Optionally, a plurality of position sensors are further provided in the base, each of which is respectively provided in a corresponding coil avoidance groove of the base, and each of which is respectively located outside the nodding magnet and the shaking magnet.

[0023] Optionally, the built-in metal of the prism is a U-shaped structure, the rear end of the built-in metal of the prism is bent upward to form a bending portion, the rear end of the bending portion is attracted to the nodding magnet, and both sides of the built-in metal of the prism are attracted to the shaking magnet.

[0024] Optionally, the zoom carrier is provided with a ball groove, and the base is provided with a ball placement groove, the ball groove and the ball placement groove are arranged opposite to each other and a zoom ball is arranged therebetween.

[0025] Optionally, an adsorption iron sheet is provided at the bottom end of the base;

[0026] An adsorption magnet is embedded in the bottom end of the zoom carrier, the bottom end of the adsorption magnet is flush with the end surface of the bottom end of the zoom carrier, and the adsorption magnet is arranged opposite to the adsorption iron sheet;

[0027] A zoom built-in metal is pre-buried in the zoom carrier, one side of the zoom built-in metal is bent to form a magnet accommodating portion, and the adsorption magnet is attracted to the magnet accommodating portion.

[0028] Optionally, the periscope lens driving device further includes a zoom driving component, and the zoom carrier is driven by the zoom driving component to perform a zoom action.

[0029] Optionally, the zoom driving assembly includes a zoom magnet and a zoom coil, and the zoom magnet is mounted on the zoom carrier;

[0030] A circuit board is arranged on the base, the zoom coil is integrated on the circuit board, and the zoom coil is arranged opposite to the zoom magnet.

[0031] Optionally, the zoom built-in metal is an L-shaped structure, and a magnet accommodating portion is provided at the connection between the vertical section and the horizontal section of the zoom built-in metal, and the vertical section of the zoom built-in metal is attracted to the zoom magnet.

[0032] Optionally, a base coil avoidance groove communicating with the inside and outside is provided on the side wall of the base, and the zoom coil is arranged along the inner wall of the base coil avoidance groove.

[0033] Optionally, a position sensor is further provided in the base, and the position sensor is provided in the coil avoidance groove of the base, and the position sensor is located outside the zoom magnet.

[0034] Optionally, the base is pre-buried with built-in metal, the built-in metal is a sheet structure, the middle edge and the front edge of the sheet structure are respectively provided with metal reinforcement plates, and the length direction of the metal reinforcement plate is the up and down direction.

[0035] Optionally, a connecting frame is provided at the top of the base, and engaging protrusions are provided in the middle and ends of the connecting frame. A blocking block is provided on the outer side of the engaging protrusion, and the blocking block extends into the base. The blocking block is located between the prism carrier and the zoom carrier, and at one end of the zoom carrier away from the prism carrier.

[0036] Optionally, a damping glue groove is provided at least at one location of the inner wall of the base opposite to the side of the prism carrier away from the zoom carrier, the inner wall of the damping glue groove is a concave-convex structure, and the damping glue groove is filled with damping glue.

[0037] Beneficial effects: The utility model has at least one or more of the following advantages:

[0038] 1. The utility model organically arranges supporting protrusions and supporting balls on the base, and uses the supporting balls as fulcrums, so that the prism carrier can nod and shake its head under the support of the fulcrums. The prism carrier is equivalent to being suspended in the base through the supporting balls, which makes the movement of the prism carrier easier and reduces the activity resistance of the prism carrier.

[0039] The supporting protrusion integrally formed with the base can greatly reduce production cost and assembly cost.

[0040] The utility model adopts the design of the reed, and after the prism carrier moves, the reed can be restored to its original position by the elastic force of the reed.

[0041] A plurality of prism carrier mounting holes and base mounting holes are arranged on the reed, and a plurality of welding avoidance holes are arranged on the base, and the welding avoidance holes and the prism carrier mounting holes are arranged correspondingly up and down. This design can stably install the reed and is simple and convenient to operate when installing the reed.

[0042] 2. The positioning protrusion on the base of the utility model corresponds to the positioning avoidance hole on the circuit board and the shell positioning groove on the shell, which is convenient for installation and positioning.

[0043] 3. A fixed baffle fixed to the upper end of the base is provided at the top of the zoom carrier, which can be used to limit the zoom carrier and the lens.

[0044] 4. The prism carrier is pre-buried with prism built-in metal, which can not only realize the connection with the nodding magnet and the shaking magnet, but also enhance the structural strength of the prism carrier.

[0045] The prism's built-in metal is cleverly designed with a support groove, through which the prism carrier can be better used to abut against the support ball.

[0046] 5. The zoom ball disposed between the base and the zoom carrier can reduce the movement friction of the zoom carrier.

[0047] 6. A zoom built-in metal is embedded in the zoom carrier. The magnet accommodating part on the zoom built-in metal is attracted to the adsorption magnet, and the adsorption magnet corresponds to the adsorption iron sheet arranged at the bottom of the base. An adsorption force is generated between the adsorption magnet and the adsorption iron sheet. The adsorption force makes the structure between the zoom carrier and the base more stable, preventing the zoom ball from escaping from the ball groove.

[0048] 7. The built-in metal embedded in the base can enhance the structural strength of the base. The design of the metal reinforcement plate can not only separate the zoom carrier from the prism carrier, but also serve as a supporting structure in the up and down directions of the base.

[0049] 8. The blocking blocks of the utility model can prevent the prism carrier and the zoom carrier from colliding with each other or the zoom carrier from colliding with the inner periphery of the base when the prism carrier and the zoom carrier move. The connecting frame is mainly used to connect multiple blocking blocks, which facilitates the installation operation of multiple blocking blocks.

[0050] 9. The design of the damping rubber groove and the damping rubber filled therein can prevent the collision between the prism carrier and the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A structural schematic diagram of the utility model;

[0052] Figure 2 for Figure 1 A cross-sectional view of

[0053] Figure 3 for Figure 1 Exploded diagram of

[0054] Figure 4 for Figure 3 Further exploded diagram of;

[0055] Figure 5 for Figure 4 Further exploded diagram of;

[0056] Figure 6 A structural schematic diagram of the internal structure of the base of the utility model;

[0057] Figure 7 A structural schematic diagram of the reed of the utility model;

[0058] Figure 8 This is a positional relationship diagram of the prism carrier and the reed of the utility model;

[0059] Fig. 9 An exploded view of the bottom of the base of the utility model;

[0060] Fig.10 This is a schematic diagram of a structure of a prism with built-in metal in the utility model;

[0061] Fig.11 This is a structural schematic diagram of the zoom carrier of the utility model;

[0062] Fig.12 This is a structural schematic diagram of the zoom built-in metal of the utility model;

[0063] Fig.13 The utility model is a schematic diagram of a structure in which a metal is built into the base. DETAILED DESCRIPTION

[0064] The following will be combined with the accompanying drawings to describe the preferred embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0065] In the following description, certain specific details are set forth for the purpose of illustrating the various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0066] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0067] In the following description, in order to clearly demonstrate the structure and working mode of the utility model, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0068] Reference Figures 1 to 6 An embodiment of the utility model provides a periscope lens driving device, including a base 1, a prism carrier 2 and a zoom carrier 3.

[0069] The base 1 may be provided with a hollow cavity, in which the prism carrier 2 and the zoom carrier 3 are arranged, and the prism carrier 2 is located at the rear side of the zoom carrier 3. The prism carrier 2 is used to install the prism 21 and drive the prism 21 to nod and shake its head. The prism 21 can turn the direction of the light, and the prism carrier 2 can move the prism 21 to change the irradiation direction of the light. The zoom carrier 3 is used to install the lens 31 and drive the lens 31 to move along the optical axis to achieve a zoom action.

[0070] Reference Figure 8 The bottom end of the prism carrier 2 is provided with a supporting groove 22. Figure 2 , Figure 5 and Figure 6 A supporting protrusion 41 is provided in the base 1 , and a supporting ball 42 is provided on the supporting protrusion 41 . The supporting protrusion 41 extends upward into the prism carrier 2 , and the supporting ball 42 abuts against the supporting groove 22 .

[0071] The utility model organically arranges a supporting protrusion 41 and a supporting ball 42 on the base 1, and uses the supporting ball 42 as a fulcrum, so that the prism carrier 2 can nod or shake its head under the support of the fulcrum. The prism carrier 2 is equivalent to being suspended in the base 1 by the supporting ball 42, which makes the movement of the prism carrier 2 easier and reduces the activity resistance of the prism carrier 2.

[0072] In one embodiment, the supporting ball 42 may be movably disposed on the top of the supporting protrusion 41 , or may be fixed on the top of the supporting protrusion 41 .

[0073] In one embodiment, the base 1 and the support protrusion 41 are integrally formed. The support protrusion 41 integrally formed with the base 1 can greatly reduce production costs and assembly costs.

[0074] In one embodiment, referring to Figures 5 to 8 The base 1 also has a reed 43, which is located between the base 1 and the prism carrier 2. The support protrusion 41 passes through the middle of the reed 43, the edge of the reed 43 is connected to the base 1, and the middle of the reed 43 is connected to the bottom end of the prism carrier 2.

[0075] In the present invention, through the design of the reed 43 , after the prism carrier 2 moves, it can return to its original position through the elastic force of the reed 43 .

[0076] In one embodiment, referring to Figure 7 A prism carrier mounting hole 431 is provided in the middle of the reed 43 , and a base mounting hole 432 is provided at the edge of the reed 43 .

[0077] Reference Fig. 9A welding avoidance hole 12 connected up and down is provided on the base 1. The welding avoidance hole 12 is correspondingly arranged up and down with the prism carrier mounting hole 431. The lower end cover of the welding avoidance hole 12 is provided with a bottom baffle 13 for shielding the welding avoidance hole 12.

[0078] With the above design, the reed 43 and the bottom of the prism carrier 2 can be welded at the bottom of the base 1. During installation, the edge of the reed 43 is first welded to the bottom of the base 1, and then the prism carrier 2 is placed on the reed 43, and then the inner side of the reed 43 and the prism carrier 2 are welded through the welding avoidance hole 12 at the bottom of the base 1. This design can stably install the reed 43 and is simple and convenient to operate when installing the reed 43.

[0079] In one embodiment, the bottom baffle 13 and the base 1 are detachably connected to facilitate installation and maintenance, for example, the two are detachably connected by snap connection or bonding.

[0080] In one embodiment, the bottom baffles 13 may be formed of multiple pieces or one piece, and preferably one piece of the bottom baffle 13 is used to cover all the welding avoidance holes 12 .

[0081] In one embodiment, the number and specific installation positions of the prism carrier installation holes 431 and the number and specific installation positions of the base installation holes 432 can be determined according to the specific shape and structure of the spring 43 or in actual application, and it is necessary to ensure that the bottom of the prism carrier 2 is located above the prism carrier installation holes 431. The number and positions of the welding avoidance holes 12 correspond to the prism carrier installation holes 431.

[0082] For example Figure 7 As shown in , the reed 43 is a rectangular structure with a hollow center, and base mounting holes 432 are respectively provided around the reed 43, and prism carrier mounting holes 431 are respectively provided around the hollow structure in the middle of the reed.

[0083] In one embodiment, referring to Figure 3 The periscope lens driving device further comprises a housing 5, which is covered on the base 1 and provided with a housing positioning groove 51. A circuit board 6 is provided on the outer wall of the base 1, and a positioning avoidance hole 61 is provided on the circuit board 6. A positioning protrusion 14 is provided at one end of the base 1, and the positioning protrusion 14 is arranged opposite to the positioning avoidance hole 61 and the housing positioning groove 51 inside and outside.

[0084] The positioning protrusion 14 on the base 1 of the utility model corresponds to the positioning avoidance hole 61 on the circuit board 6 and the housing positioning groove 51 on the housing 5, which is convenient for installation and positioning.

[0085] In one embodiment, the housing 5 and the base 1 are preferably connected by snap-fitting, and the housing 5 can well protect the components in the base 1.

[0086] A light inlet 52 connected to the base 1 may be provided at the top of the housing 5 , and light enters the prism 21 mounted on the prism carrier 2 in the hollow cavity through the light inlet 52 , and is refracted by the prism 21 to the lens 31 on the zoom carrier 3 on its left side.

[0087] In one embodiment, referring to Figures 3 to 5 The top of the zoom carrier 3 is provided with a fixed baffle 7 for limiting the zoom carrier 3 and the lens 31, and the fixed baffle 7 is fixed to the upper end of the base 1. The fixed baffle 7 can be used to limit the zoom carrier 3 and the lens 31.

[0088] In one embodiment, referring to Fig.10 A prism built-in metal 23 is pre-buried in the prism carrier 2 , and a supporting groove 22 for abutting against the supporting ball 42 is provided in the middle of the prism built-in metal 23 .

[0089] In one embodiment, referring to Figure 8 When a prism built-in metal 23 is pre-buried in the prism carrier 2 and a support groove 22 is set in the middle thereof, a prism groove can be dug upward at the bottom end of the prism carrier 2, and the middle part of the prism built-in metal 23 extends into the prism groove. The support groove 22 is open in the prism groove for abutment by the support ball 42 on the support protrusion 41 extending upward from the bottom.

[0090] The prism built-in metal 23 is cleverly designed with a support groove 22 , and the prism carrier 2 can be better used to abut against the support ball 42 through this design.

[0091] In one embodiment, the periscope lens driving device also includes a prism driving component, which drives the prism carrier 2 to rotate in the front-to-back direction and the up-and-down direction respectively, so that the prism 21 installed on the prism carrier 2 can nod or shake its head.

[0092] In one embodiment, the prism drive assembly can adopt existing technology, preferably adopting the following design:

[0093] The prism driving assembly includes a nodding magnet 81 , a shaking head magnet 82 , a nodding coil 83 and a shaking head coil 84 . The nodding magnet 81 and the shaking head magnet 82 are respectively mounted on adjacent side walls of the prism carrier 2 .

[0094] Reference Figure 5 The nodding magnet 81 is installed on the rear side of the prism carrier 2, and the shaking magnet 82 is installed on the left side and / or right side of the prism carrier 2.

[0095] Reference Figures 4 to 6A circuit board 6 is provided on the base 1 , and a nodding coil 83 and a shaking head coil 84 are integrated on the circuit board 6 . The nodding coil 83 is arranged opposite to the nodding magnet 81 , and the shaking head coil 84 is arranged opposite to the shaking head magnet 82 .

[0096] When in use, the nodding coil 83 and the shaking coil 84 are energized through the circuit board 6, and the nodding coil 83 cooperates with the nodding magnet 81 inside to realize the prism carrier 2 to make a nodding motion in the left-right direction, so that the prism 21 installed on the prism carrier 2 can make a nodding motion together. The shaking coil 84 cooperates with the shaking magnet 82 inside to realize the prism carrier 2 to make a shaking motion in the up-down direction, so that the prism 21 installed on the prism carrier 2 can make a shaking motion together.

[0097] Of course, a built-in circuit may be provided inside the base 1 to replace the circuit board 6 , which is equivalent to directly providing the nodding coil 83 and the shaking coil 84 on the inner side of the base 1 .

[0098] In one embodiment, the circuit board 6 is an FPC board.

[0099] In one embodiment, the circuit board 6 is a circuit board 6 having at least three surfaces, two of which are left and right surfaces, and one of which is a rear side surface, and the rear side surface is connected between the left and right surfaces. The rear side surface can be a shorter section and is located at the rear side. A shaking coil 84 is respectively provided on the left side surface and / or the right side surface of the circuit board 6, and a nodding coil 83 is provided on the rear side surface of the circuit board 6. The left and right surfaces of the circuit board 6 are respectively attached to the outer sides of the left and right surfaces of the base 1, and the rear side surface of the circuit board 6 is attached to the outer side of the rear side surface of the base 1.

[0100] Of course, the positions of the nodding coil 83 and the shaking coil 84 on the circuit board 6 can be determined according to actual needs and are not limited to the above-mentioned design of the present utility model.

[0101] In one embodiment, there are one or more wagging coils 84 .

[0102] In one embodiment, there are two oscillating coils 84, which are arranged on two opposite sides of the circuit board 6, and the nodding coil 83 is located on an edge adjacent to the two oscillating coils 84. Figure 6 As shown in FIG. 8 , the nodding coil 83 is arranged on the rear side of the circuit board 6 , and the two shaking coils 84 are arranged on the inner walls of the left and right sides of the circuit board 6 opposite to each other.

[0103] In one embodiment, a plurality of base coil avoidance grooves connected inside and outside are respectively arranged on the side walls of the base 1, the nodding coil 83 is arranged along the inner wall of the corresponding base coil avoidance groove 15, and the shaking coil 84 is arranged along the inner wall of the corresponding base coil avoidance groove 16.

[0104] In one embodiment, a plurality of position sensors are also provided in the base 1, each of which is provided in a corresponding base coil avoidance groove, and each of which is located outside the nodding magnet 81 and the shaking magnet 82. The position sensors can monitor the movement position after cooperating with the corresponding magnets.

[0105] When there are two or more oscillating magnets 82 , the position sensor is arranged in the base coil avoidance groove 16 outside any oscillating magnet 82 .

[0106] In one embodiment, referring to Fig.10 The prism built-in metal 23 is a U-shaped structure. Specifically, the two vertical sections of the prism built-in metal 23 are located on the left and right sides, and the length direction of the horizontal section of the prism built-in metal 23 is the left and right direction.

[0107] The rear end of the prism built-in metal 23 is bent upward to form a bent portion 231, and the rear end of the bent portion 231 is attracted to the nodding magnet 81. When there is one shaking magnet 82, the left or right side of the prism built-in metal 23 is attracted to the shaking magnet 82. When there are two shaking magnets 82, the left and right sides of the prism built-in metal 23 are attracted to each shaking magnet 82.

[0108] As a result, the prism carrier 2 is pre-buried with the prism built-in metal 23 , which can not only realize the connection with the nodding magnet 21 and the shaking magnet 82 , but also enhance the structural strength of the prism carrier 2 .

[0109] In one embodiment, referring to Fig.11 , the zoom carrier 3 is provided with a ball groove 32, referring to Figure 6 A ball placement groove 17 is provided on the base 1, and the ball groove 32 is arranged opposite to the ball placement groove 17 and a zoom ball 18 is arranged between the two.

[0110] The zoom ball 18 disposed between the base 1 and the zoom carrier 3 can reduce the movement friction of the zoom carrier 3 .

[0111] Specifically, the zoom ball 18 can be placed in the ball placement groove 17, and the upper part of the zoom ball 18 is exposed in the ball placement groove 17. When the zoom carrier 3 is placed from the top to the base 1, the ball groove 32 is relatively arranged above the ball placement groove 17, and the upper exposed part of the zoom ball 18 is embedded in the ball groove 32, so that the movement friction of the zoom carrier 3 is reduced by the zoom ball 18.

[0112] In one embodiment, an adsorption iron sheet is disposed at the bottom end of the base 1 .

[0113] Reference Fig.12A zoom built-in metal 33 is embedded in the zoom carrier 3, and a magnet receiving portion 331 is bent on one side of the zoom built-in metal 33, and an adsorption magnet is attracted in the magnet receiving portion 331. The bottom end of the adsorption magnet is flush with the bottom end surface of the zoom carrier 3, and the adsorption magnet is arranged opposite to the adsorption iron sheet.

[0114] An adsorption force is generated between the adsorption magnet and the adsorption iron sheet, and the adsorption force makes the structure between the zoom carrier 3 and the base 1 more stable, thereby preventing the zoom ball 18 from escaping from the ball groove 32 .

[0115] In one embodiment, the periscope lens driving device further includes a zoom driving assembly, which drives the zoom carrier 3 to move along the front-to-back direction (optical axis direction) through the zoom driving assembly, thereby realizing the zoom operation of the lens 31 installed on the zoom carrier 3.

[0116] In one embodiment, the zoom drive assembly can adopt the existing technology, preferably adopting the following design:

[0117] The zoom driving assembly includes a zoom magnet 85 and a zoom coil 86 , and the zoom magnet 85 is mounted on the zoom carrier 3 .

[0118] Reference Figure 5 The zoom magnet 85 is installed on the left side or right side of the zoom carrier 3.

[0119] A circuit board 6 is disposed on the base 1 , and a zoom coil 86 is integrated on the circuit board 6 . The zoom coil 86 and the zoom magnet 85 are disposed opposite to each other.

[0120] When in use, the zoom coil 86 is energized through the circuit board 6, and the zoom coil 86 cooperates with the zoom magnet 85 inside thereof to realize the movement of the zoom carrier 3 in the left and right directions, thereby realizing the zoom function of the lens 31 on the zoom carrier 3.

[0121] Of course, a built-in circuit may be provided inside the base 1 to replace the circuit board 6 , which is equivalent to directly providing the zoom coil 86 on the inner side of the base 1 .

[0122] In one embodiment, referring to Fig.11 A zoom magnet mounting groove 34 is dug on the left side or the right side of the zoom carrier 3 , and the zoom magnet 85 is installed in the zoom magnet mounting groove 34 .

[0123] In one embodiment, a base coil avoidance groove 19 communicating with the inside and outside is provided on the side wall of the base 1 , and the zoom coil 86 is arranged along the inner wall of the base coil avoidance groove 19 .

[0124] In one embodiment, a position sensor is further disposed in the base 1 . The position sensor is disposed in the base coil avoidance groove 19 , and the position sensor is located outside the zoom magnet 85 .

[0125] In one embodiment, referring to Fig.12 The zoom built-in metal 33 is an L-shaped structure, and a magnet accommodating portion 331 is provided at the connection between the vertical section and the horizontal section of the zoom built-in metal 33 , and the vertical section of the zoom built-in metal 33 is attracted to the zoom magnet 85 .

[0126] In one embodiment, a side of the horizontal section of the zoom built-in metal 33 away from the vertical section can also be bent to form a connecting portion, which is used to be embedded in the zoom carrier 3, so that the horizontal section of the zoom built-in metal 33 can directly form the bottom surface of the zoom carrier 3.

[0127] In one embodiment, referring to Fig.13 A base built-in metal 11 is embedded in the base 1. The base built-in metal 11 is a sheet structure. The middle edge and the front edge of the sheet structure are respectively provided with metal reinforcing plates 111. The length direction of the metal reinforcing plates 111 is the up and down direction.

[0128] The built-in metal 11 embedded in the base 1 can enhance the structural strength of the base 1 . The design of the metal reinforcing plate 111 can separate the zoom carrier 3 from the prism carrier 2 , and also serve as a supporting structure for the base 1 in the up and down directions.

[0129] In one embodiment, referring to Fig.13 In order to reduce the overall weight of the base 1 and ensure the structural strength of the base 1, several grooves are dug out on the built-in metal 11 of the base, especially the built-in metal 11 of the base corresponding to the welding avoidance hole 12, but the built-in metal 11 of the base corresponding to the support protrusion 41 is retained.

[0130] In one embodiment, the cross section of the metal reinforcing plate 111 at the middle edge is an L-shaped structure, and the cross section of the metal reinforcing plate 111 at the front edge is a strip-shaped structure.

[0131] In one embodiment, a connecting frame is provided at the top of the base 1, and engaging protrusions are provided in the middle and ends of the connecting frame. A blocking block is provided on the outer side of the engaging protrusion, and the blocking block extends into the base 1. The blocking block is located between the prism carrier 2 and the zoom carrier 3, and at an end of the zoom carrier 3 away from the prism carrier 2.

[0132] The blocking block of the utility model can avoid mutual collision between the prism carrier 2 and the zoom carrier 3 or collision between the zoom carrier 3 and the inner periphery of the base 1 when the prism carrier 2 and the zoom carrier 3 move. The connecting frame is mainly used to connect multiple blocking blocks, which facilitates the installation operation of multiple blocking blocks.

[0133] In one embodiment, the connection relationship between the engaging protrusion and the blocking block can be an engaging connection or an integral injection molding connection.

[0134] In one embodiment, the shape and thickness of the blocking block can be determined according to actual needs. For example, the thickness of the blocking block between the prism carrier 2 and the zoom carrier 3 is greater than the thickness of the blocking block at one end of the zoom carrier 3. The blocking block between the prism carrier 2 and the zoom carrier 3 is a reverse U-shaped structure, and the blocking block at one end of the zoom carrier 3 is a rectangular structure.

[0135] In one embodiment, referring to Figures 3 to 6 A damping rubber groove 9 is provided at least at one place in the inner wall of the base 1 opposite to the side of the prism carrier 2 away from the zoom carrier 3, the inner wall of the damping rubber groove 9 is a concave-convex structure, and the damping rubber groove 9 is filled with damping rubber.

[0136] The design of the damping glue groove 9 and the damping glue filled therein can prevent the collision between the prism carrier 2 and the base 1.

[0137] The present utility model also provides a method for installing a periscope lens driving device, including the installation process of a prism carrier 2:

[0138] S1, put the spring 43 into the base 1 from top to bottom, the supporting protrusion 41 passes through the middle of the spring 43, and is welded to the bottom end of the base 1 through the base mounting hole 432 at the edge of the spring 43.

[0139] S2, placing the prism carrier 2 into the base 1 from top to bottom, the supporting protrusion 41 extends into the prism carrier 2, and the supporting ball 42 abuts against the supporting groove 22.

[0140] S3, welding the middle part of the spring 43 and the prism carrier 2 through the prism carrier mounting hole 431 at the welding avoidance hole 12 at the bottom end of the base 1.

[0141] S4, cover the bottom baffle 13 to shield the welding avoidance hole 12.

[0142] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A periscope lens driving device, comprising a base, wherein a prism carrier for mounting a prism and a zoom carrier for mounting a lens are arranged in the base, characterized in that: The bottom end of the prism carrier is provided with a supporting groove; A support protrusion is arranged in the base, a support ball is arranged on the support protrusion, the support protrusion extends upward into the prism carrier, and the support ball abuts against the support groove, wherein The prism carrier is pre-buried with a prism built-in metal, and the middle of the prism built-in metal is provided with the support groove for abutting against the support ball.

2. The periscope lens driving device according to claim 1, characterized in that: The base and the supporting protrusion are integrally formed; And / or, the base further has a reed, the supporting protrusion passes through the middle of the reed, the edge of the reed is connected to the base, and the middle of the reed is connected to the bottom end of the prism carrier.

3. The periscope lens driving device according to claim 2, characterized in that: A prism carrier mounting hole is arranged in the middle of the spring sheet, and a base mounting hole is arranged at the edge of the spring sheet; a welding avoidance hole connected up and down is arranged on the base, and the welding avoidance hole and the prism carrier mounting hole are arranged correspondingly up and down.

4. The periscope lens driving device according to claim 3, characterized in that: The lower end cover of the welding avoidance hole is provided with a bottom baffle for shielding the welding avoidance hole.

5. The periscope lens driving device according to claim 1 or 2, characterized in that: The periscope lens driving device further comprises a housing, wherein the housing cover is arranged on the base, and a housing positioning groove is arranged on the housing; The outer wall of the base is provided with a circuit board, and the circuit board is provided with a positioning avoidance hole; A positioning protrusion is arranged at one end of the base, and the positioning protrusion is arranged opposite to the positioning avoidance hole and the positioning groove of the shell inside and outside.

6. The periscope lens driving device according to claim 1 or 2, characterized in that: A fixed baffle plate for limiting the position of the zoom carrier and the lens is arranged at the top end of the zoom carrier, and the fixed baffle plate is fixed to the upper end of the base.

7. The periscope lens driving device according to claim 1, characterized in that: The periscope lens driving device also includes a prism driving component, and the prism driving component drives the prism carrier to nod and shake its head.

8. The periscope lens driving device according to claim 7, characterized in that: The prism drive assembly includes a nodding magnet, a shaking head magnet, a nodding coil and a shaking head coil, and the nodding magnet and the shaking head magnet are respectively installed on adjacent side walls of the prism carrier; a circuit board is provided on the base, and the nodding coil and the shaking head coil are integrated on the circuit board. The nodding coil is arranged opposite to the nodding magnet, and the shaking head coil is arranged opposite to the shaking head magnet.

9. The periscope lens driving device according to claim 8, characterized in that: A plurality of base coil avoidance grooves connected inside and outside are respectively arranged on the side walls of the base, and the nodding coil and the shaking coil are respectively arranged along the inner wall of a corresponding base coil avoidance groove.

10. The periscope lens driving device according to claim 9, characterized in that: A plurality of position sensors are also arranged in the base, each of which is arranged in a corresponding coil avoidance groove of the base, and each of which is located outside the nodding magnet and the shaking magnet.

11. The periscope lens driving device according to claim 8, characterized in that: The built-in metal of the prism is a U-shaped structure, the rear end of the built-in metal of the prism is bent upward to form a bending portion, the rear end of the bending portion is attracted to the nodding magnet, and the two sides of the built-in metal of the prism are attracted to the shaking magnet.

12. The periscope lens driving device according to claim 1 or 2, characterized in that: The zoom carrier is provided with a ball groove, the base is provided with a ball placement groove, the ball groove and the ball placement groove are arranged opposite to each other and a zoom ball is arranged between the two.

13. The periscope lens driving device according to claim 1, characterized in that: An adsorption iron sheet is provided at the bottom end of the base; an adsorption magnet is embedded in the bottom end of the zoom carrier, the bottom end of the adsorption magnet is flush with the end surface of the bottom end of the zoom carrier, and the adsorption magnet is arranged opposite to the adsorption iron sheet; a zoom built-in metal is embedded in the zoom carrier, a magnet accommodating portion is bent on one side of the zoom built-in metal, and the adsorption magnet is attracted to the magnet accommodating portion.

14. The periscope lens driving device according to claim 13, characterized in that: The periscope lens driving device also includes a zoom driving component, and the zoom carrier is driven by the zoom driving component to perform a zoom action.

15. The periscope lens driving device according to claim 14, characterized in that: The zoom driving assembly includes a zoom magnet and a zoom coil, wherein the zoom magnet is mounted on the zoom carrier; a circuit board is arranged on the base, the zoom coil is integrated on the circuit board, and the zoom coil is arranged opposite to the zoom magnet.

16. The periscope lens driving device according to claim 15, characterized in that: The zoom built-in metal is an L-shaped structure, and a magnet accommodating portion is provided at the connection between the vertical section and the horizontal section of the zoom built-in metal. The vertical section of the zoom built-in metal is attracted to the zoom magnet.

17. The periscope lens driving device according to claim 15, characterized in that: The side wall of the base is provided with a base coil avoidance groove which is connected inside and outside, and the zoom coil is arranged along the inner wall of the base coil avoidance groove.

18. The periscope lens driving device according to claim 15, characterized in that: A position sensor is also arranged in the base. The position sensor is arranged in the base coil avoidance groove and is located outside the zoom magnet.

19. The periscope lens driving device according to claim 1 or 2, characterized in that: The base is pre-buried with base built-in metal, which is a sheet-like structure. The middle edge and the front edge of the sheet-like structure are respectively provided with metal reinforcing plates, and the length direction of the metal reinforcing plates is the up-and-down direction.

20. The periscope lens driving device according to claim 1 or 2, characterized in that: A connecting frame is provided at the top of the base, and engaging protrusions are provided in the middle and ends of the connecting frame. A blocking block is provided on the outer side of the engaging protrusion, and the blocking block extends into the base. The blocking block is located between the prism carrier and the zoom carrier, and at one end of the zoom carrier away from the prism carrier.

21. The periscope lens driving device according to claim 1 or 2, characterized in that: A damping rubber groove is provided at least at one location of the inner wall of the base opposite to the side of the prism carrier away from the zoom carrier, the inner wall of the damping rubber groove is a concave-convex structure, and the damping rubber groove is filled with damping rubber.

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