Piezoelectric type driving periscopic zooming structure

Abstract

The invention discloses a piezoelectric type driving periscopic zoom structure, and relates to the technical field of optical driving, the piezoelectric type driving periscopic zoom structure comprises a base and two carriers, the two carriers are movably arranged on the base, the carriers are provided with lenses, and the base is fixedly provided with a support; the two piezoelectric assemblies work independently, the piezoelectric assemblies are arranged on the base, each piezoelectric assembly comprises a piezoelectric support and a piezoelectric unit arranged on the piezoelectric support, each piezoelectric unit comprises a piezoelectric element and a piezoelectric push rod, and the piezoelectric elements are connected with the piezoelectric push rods. According to the piezoelectric type driving periscopic zooming structure, the two piezoelectric type driving structures drive the lenses to relatively displace, the piezoelectric driving force output by the piezoelectric assembly is transmitted to the carrier, the carrier is driven to move, the lenses carried on the carrier synchronously translate, the distance between the two lenses is changed, optical zooming is achieved, and the displacement precision and stability of the lenses can be guaranteed; zooming precision is guaranteed, and zooming performance is improved.

Description

Technical Field

[0001] The present invention relates to the field of optical drive technology, and in particular to a piezoelectric drive periscope zoom structure. Background Art

[0002] Because conventional motors are often limited by the thickness of mobile phones, periscope motors have emerged to adapt to the new development trend of mobile phone cameras. Periscope motors have high pixel density, large aperture, and ultra-thin design. Periscope motors change the driving direction and receive light through a prism to achieve the desired effect.

[0003] Patent publication number (CN112505904A) discloses a periscope zoom lens and electronic device. By combining a first movable lens group and a second movable lens group with a fixed lens group, the optical zoom factor varies depending on the combination of the movable and fixed lens groups. When different movable and fixed lens groups are combined, different optical magnification factors are achieved, thereby realizing an optical zoom function. While optical zoom can be achieved through movable lenses, the lens displacement accuracy and stability cannot be guaranteed, thereby ensuring zoom accuracy and improving zoom performance.

[0004] Therefore, there are still shortcomings and deficiencies in the existing technology. How to provide a piezoelectric driven periscope zoom structure is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a piezoelectric-driven periscope zoom structure, which solves the technical problem that although the existing technology can achieve optical zoom by moving the lens, it cannot guarantee the lens displacement accuracy and stability, thereby ensuring the zoom accuracy and improving the zoom performance.

[0006] To achieve the above objectives, the present invention provides a piezoelectric-driven periscope zoom structure, comprising a base and two carriers, wherein the two carriers are movably mounted on the base, the carriers are provided with lenses, the base is further fixed with a bracket, and the bracket is equipped with a prism, and further comprising:

[0007] Two groups of independently working piezoelectric components are arranged on the base. The piezoelectric components include a piezoelectric bracket and a piezoelectric unit arranged on the piezoelectric bracket. The piezoelectric unit includes a piezoelectric element and a piezoelectric push rod. The piezoelectric element is connected to the piezoelectric push rod.

[0008] Preferably, a spring sheet is provided on the carrier, the spring sheet is connected to the piezoelectric push rod, and the spring sheet is in a bent structure.

[0009] Preferably, it further comprises a circuit board arranged on the base, wherein the circuit board is connected to the piezoelectric elements in the two groups of the piezoelectric assemblies.

[0010] Preferably, a magnet is fixedly provided on the bottom of the carrier, and a magnetic attraction member is provided on the base.

[0011] Preferably, a Hall sensor is integrated on the circuit board.

[0012] Preferably, the carrier is further provided with a guide hole, a sliding rod is provided in the guide hole, and both ends of the sliding rod are fixedly connected to the base.

[0013] Preferably, a plurality of balls are provided between the carrier and the base.

[0014] Preferably, the carrier is provided with a mounting groove, the elastic piece is arranged in the mounting groove, and bosses are provided on both sides of the mounting groove.

[0015] Preferably, the piezoelectric unit further includes a connecting terminal, a notch is provided at the bottom of the piezoelectric bracket, the end of the notch is funnel-shaped, the connecting terminal passes through the notch, and both ends of the connecting terminal are respectively connected to the piezoelectric element and the circuit board.

[0016] Compared with the above-mentioned background technology, the piezoelectric-driven periscope zoom structure provided by the present invention has two groups of piezoelectric components working independently. The piezoelectric element receives the driving voltage and produces micron-level deformation through the inverse piezoelectric effect, outputting thrust. The piezoelectric driving force output by the piezoelectric component is transmitted to the carrier, driving the carrier to move. The lenses carried on the carrier are synchronously translated, changing the distance between the two lenses to achieve optical zoom, which can ensure the lens displacement accuracy and stability, ensure the zoom accuracy, and improve the zoom performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1 This is an overall diagram of the piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0019] Figure 2 An exploded diagram of a piezoelectric-driven periscope zoom structure provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the internal structure of a piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0021] Figure 4A schematic diagram of a spring and a carrier in a piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of another perspective of the spring and the carrier in the piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0023] Figure 6 for Figure 5 Schematic diagram of the middle part structure;

[0024] Figure 7 A cross-sectional view of a piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0025] Figure 8 A schematic structural diagram of a piezoelectric component in a piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0026] Figure 9 A schematic diagram of another perspective of the piezoelectric component in the piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0027] Figure 10 Schematic diagram of the structure of the piezoelectric unit in the piezoelectric component;

[0028] Figure 11 Schematic diagram of the structure of the piezoelectric support in the piezoelectric assembly;

[0029] Figure 12 A schematic diagram of the connection between the spring and the carrier in the piezoelectric-driven periscope zoom structure provided by an embodiment of the present invention;

[0030] Figure 13 Schematic diagram of the structure of the spring in some embodiments;

[0031] Figure 14 for Figure 13 A three-dimensional schematic diagram of the shrapnel shown;

[0032] Figure 15 for Figure 14 One of the structural diagrams of the spring piece after the slot is provided;

[0033] Figure 16 for Figure 14 The second structural diagram of the spring piece after the slot is provided;

[0034] Figure 17 Schematic diagram of the structure of the spring in some embodiments.

[0035] Figures 1 to 17Reference numerals in the figure: 1. outer shell; 2. bracket; 3. prism; 4. sliding rod; 5. lens; 6. spring; 601. slot; 7. carrier; 701. mounting slot; 702. U-shaped slot; 703. boss; 704. guide hole; 8. piezoelectric component; 801. piezoelectric bracket; 8011. slot; 802. piezoelectric element; 803. piezoelectric push rod; 804. connecting terminal; 805. counterweight; 9. magnetic part; 10. magnet; 11. ball; 12. base; 13. circuit board; 1301. Hall sensor; 100. piezoelectric-driven periscope zoom structure. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] In order to enable those skilled in the art to better understand the solutions of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0038] The present invention provides a piezoelectric driven periscope zoom structure 100, which drives the relative displacement of the lens 5 by two groups of piezoelectric driving structures, thereby ensuring the displacement accuracy and stability of the lens 5, thereby ensuring the zoom accuracy and improving the zoom performance.

[0039] Please refer to Figures 1 to 17 The piezoelectric driven periscope zoom structure 100 provided by the present invention includes a base 12 and two carriers 7. The two carriers 7 are movably mounted on the base 12, and the carriers 7 are provided with lenses 5. The base 12 is also fixed with a bracket 2, and the bracket 2 is equipped with a prism 3.

[0040] The base 12 is a rectangular box structure with an open top, and the interior is used to provide installation space for other components. The light is totally reflected by the prism 3 and changes its direction by 90 degrees, converting the longitudinal light path into a transverse light path, breaking through the thickness limit.

[0041] It also includes two groups of independently working piezoelectric components 8, which are arranged on the base 12. The piezoelectric components 8 include a piezoelectric support 801 and a piezoelectric unit arranged on the piezoelectric support 801. The piezoelectric unit includes a piezoelectric element 802 and a piezoelectric push rod 803. The piezoelectric element 802 is connected to the piezoelectric push rod 803. In this embodiment, the piezoelectric element 802 is specifically a piezoelectric ceramic, and the piezoelectric push rod 803 is specifically a ceramic rod.

[0042] Among them, the two groups of piezoelectric components 8 work independently, pushing the two carriers 7 to move respectively. When the piezoelectric components 8 are working, the piezoelectric element 802 receives the driving voltage to move the piezoelectric push rod 803. The piezoelectric push rod 803 pushes the carrier 7 through the spring 6, so that the distance between the two lenses 5 changes to achieve optical zoom.

[0043] The piezoelectric component 8 generates micron-level deformation through the inverse piezoelectric effect and outputs thrust. The piezoelectric driving force output by the piezoelectric component 8 is transmitted to the carrier 7 through the spring 6, driving the carrier 7 to move. The lens 5 carried on the carrier 7 is translated synchronously. The two groups of piezoelectric components 8 work independently to change the distance between the two lenses 5 to achieve optical zoom, which can ensure the displacement accuracy and stability of the lens 5, thereby ensuring the zoom accuracy and improving the zoom performance.

[0044] Specifically, a driving voltage is applied to the piezoelectric element 802 , causing it to produce micron-level telescopic deformation by utilizing the inverse piezoelectric effect. The piezoelectric push rod 803 is connected to the piezoelectric element 802 , converting the deformation into linear displacement, and pushing the carrier 7 to move through the spring 6 .

[0045] In some embodiments, please refer to Figures 2 to 6 、 Figure 12 The carrier 7 is provided with a spring piece 6, which is connected to the piezoelectric push rod 803 and has a bent structure. The carrier 7 is provided with a mounting groove 701, in which the spring piece 6 is disposed. The spring piece 6 is disposed in the mounting groove 701 and is squeezed by the mounting groove 701 to generate deformation.

[0046] The spring piece 6 has an interference fit with the mounting groove 701 of the carrier 7. The spring piece 6 is squeezed in the mounting groove 701 of the carrier 7 to generate a clamping force. Since the spring piece 6 is connected to the piezoelectric push rod 803, the driving voltage is applied to the piezoelectric element 802 to cause it to produce micron-level telescopic deformation. The piezoelectric push rod 803 converts the deformation into linear displacement, pushing the spring piece 6. The thrust of the piezoelectric component 8 is transmitted to the carrier 7 through the spring piece 6, driving the carrier 7 to move.

[0047] Specifically, the spring piece 6 is serpentine in shape as a whole, and is described as being bent into a U-shape, and the bending sequentially forms a U-shaped structure. Figures 13 to 15 The spring piece 6 is formed by bending three times. Figure 14 The spring piece 6 in the figure is bent five times. The number of times the spring piece 6 is bent does not limit the structure of the spring piece 6, as long as the spring piece 6 is a bent structure as a whole.

[0048] like Figure 15 and Figure 16 As shown, a slot 601 can be provided on the spring piece 6. By providing the slot 601, the shape and structure of the spring piece 6 can be changed, and then the clamping force exerted on the spring piece 6 in the mounting slot 701 of the carrier 7 can be changed, thereby achieving precise thrust output.

[0049] Specifically, the slots 601 are provided on both sides of the spring piece 6, that is, the parts of the spring piece 6 that are used to abut against the mounting slots 701 of the carrier 7. Figure 15 As shown, the slot 601 can be set in the middle of the spring 6, as shown in FIG. Figure 16 As shown, the slot 601 can also be arranged near the edge of the spring piece 6. The shape of the slot 601 includes but is not limited to rectangle, circle, ellipse, etc., and is not specifically limited.

[0050] In some embodiments, please refer to Figures 1 to 3 、 Figures 6 and 7 , further comprising a circuit board 13 disposed on the base 12 , the circuit board 13 being connected to the piezoelectric elements 802 in the two sets of piezoelectric assemblies 8 . The circuit board 13 is used to transmit a driving signal to the piezoelectric elements 802 to control the movement of the lens 5 .

[0051] In this embodiment, the circuit board 13 is an FPC board, that is, a flexible printed circuit board 13. The FPC board is attached to the base 12 in a manner including but not limited to flat-plate attachment, bent-side attachment, etc.

[0052] Circuit board 13 is connected to the piezoelectric elements 802 in the two piezoelectric assemblies 8, controlling their independent operation. A driving signal is transmitted via circuit board 13 to the piezoelectric elements 802 in the piezoelectric assemblies 8. The piezoelectric assemblies 8 generate micrometer-level deformations through the inverse piezoelectric effect, generating thrust. This piezoelectric driving force is then transmitted to carrier 7 via spring 6, driving carrier 7 to move. This in turn causes the lens 5 mounted on carrier 7 to translate synchronously, thereby controlling its movement.

[0053] In some embodiments, please refer to Figure 1 A magnet 10 is fixedly provided at the bottom of the carrier 7, and a magnetic member 9 is provided on the base 12. The mechanical adsorption force of the magnet 10 and the magnetic member 9 prevents the carrier 7 from vibrating and deviating when it moves.

[0054] The magnet 10 is embedded in the carrier 7 and can be fixed by injection molding or gluing. The magnetic member 9 can be integrally stamped or bonded with the base 12 and is located directly below the magnet 10. The magnetic member 9 can be made of a metal sheet such as a steel sheet.

[0055] In some embodiments, please refer to Figures 2 to 6 A Hall sensor 1301 is integrated on the circuit board 13. When the carrier 7 moves, the relative position between the magnet 10 and the Hall sensor 1301 changes. The Hall sensor 1301 detects the magnetic field strength signal and converts it into an electrical signal, which is transmitted to the circuit board 13. The piezoelectric drive voltage is dynamically adjusted through the circuit board 13.

[0056] The Hall sensor 1301 (Hall sensor) is a magnetic sensitive element based on the Hall effect, used to detect magnetic field strength or magnet position.

[0057] The present invention is capable of monitoring the position deviation of the lens 5 in real time and dynamically correcting it by providing the Hall sensor 1301 , thereby achieving closed-loop control of the displacement of the lens 5 .

[0058] The closed-loop control of the lens 5's displacement is based on a "detection-feedback-adjustment" mechanism. Hall sensors 1301 monitor position deviations in real time and dynamically correct them. Specifically, magnet 10 is fixed to carrier 7. As carrier 7 moves, the magnet 10 generates changes in magnetic field intensity. Hall sensors 1301 detect changes in the magnetic field intensity of magnet 10 and output electrical signals related to its position. A driver IC integrated on circuit board 13 receives the Hall signals, calculates the deviation between the actual and target positions of lens 5, and generates piezoelectric drive voltage adjustment instructions. A new piezoelectric drive voltage is generated using a PID algorithm (proportional-integral-differential control). The piezoelectric element 802 in piezoelectric assembly 8 receives this adjusted voltage, generating precise deformation and driving carrier 7 and lens 5. The system continuously cycles through detection, feedback, and adjustment until the error between the actual and target positions of lens 5 approaches zero. This achieves precise control of lens 5 displacement, significantly improving the zoom performance and imaging quality of the periscope lens.

[0059] In some embodiments, please refer to Figures 2 to 6 The carrier 7 also has a guide hole 704, within which a slide bar 4 is mounted. Both ends of the slide bar 4 are fixedly connected to the base 12. The slide bar 4 provides positional guidance for the carrier 7 when the piezoelectric push rod 803 moves the carrier 7. For example, using three-dimensional coordinate space as an example, when the carrier 7 moves in the Y direction, the slide bar 4 provides positional guidance in the X and Z directions, ensuring that the carrier 7 slides in the Y direction and maintaining accurate lens displacement.

[0060] The piezoelectric driving force output by the piezoelectric component 8 is transmitted to the carrier 7 through the spring 6. When driving the carrier 7 to move, the carrier 7 moves along the extension direction of the slide rod 4 through the cooperation between the above-mentioned guide hole 704 and the slide rod 4. The movement of the carrier 7 is limited and guided by the slide rod 4 to achieve precise displacement of the lens 5.

[0061] It should be noted that in this embodiment, the slide bar 4 passes through the guide holes 704 on both carriers 7, allowing a single slide bar 4 to simultaneously limit and guide the movement of both carriers 7. This arrangement, on the one hand, naturally ensures the coaxiality of the two carriers 7 and the consistency of the optical axes of the two lenses 5; on the other hand, using a single slide bar 4 to pass through both carriers 7 effectively saves space and reduces the size of the motor, meeting the requirements of ultra-thin periscope lenses.

[0062] In some embodiments, please refer to Figures 2 to 6 Several balls 11 are also positioned between the carrier 7 and the base 12. These balls 11, the base 12, and the carrier 7 form a stopper. For example, in three-dimensional coordinate space, when the carrier 7 moves in the Y direction, the balls 11, the base 12, and the carrier 7 form a stopper in the X and Z directions. This ensures that the carrier 7 drives the balls 11 to slide along the base 12 in the Y direction, ensuring accurate lens displacement. Furthermore, the balls 11 create rolling friction between the carrier 7 and the base 12, reducing driving resistance.

[0063] Specifically, there can be one or more balls 11, embedded in base 12. The provision of balls 11 creates point-contact rolling friction with the bottom surface of carrier 7, thereby reducing driving resistance and power consumption during carrier 7 movement. Furthermore, when the piezoelectric element contracts, the elastic restoring force of spring 6 pulls carrier 7, accelerating the return stroke thanks to the low-friction properties of balls 11.

[0064] A magnetic circuit is formed between the magnet 10 and the magnetic attraction member 9, generating a vertical attraction force, thereby pressing the carrier 7 against the ball 11 on the base 12, eliminating the assembly gap between the carrier 7 and the base 12, and preventing vibration deviation when the carrier 7 moves.

[0065] In some embodiments, please refer to Figure 12 The carrier 7 is provided with a mounting groove 701, the spring piece 6 is provided in the mounting groove 701, and bosses 703 are provided on both sides of the mounting groove 701. The bosses 703 are used to limit the spring piece 6 to prevent the spring piece 6 from escaping from the mounting groove 701 during movement.

[0066] When the spring piece 6 is arranged in the installation groove 701, the bosses 703 on both sides of the installation groove 701 can be clamped with the spring pieces 6 on both sides of the spring piece 6, thereby limiting the position and preventing the spring piece 6 from escaping from the installation groove 701 during movement.

[0067] In some embodiments, please refer to Figures 8 to 11 The piezoelectric unit also includes a connecting terminal 804. A notch 8011 is provided at the bottom of the piezoelectric bracket 801. The end of the notch 8011 is funnel-shaped. The connecting terminal 804 passes through the notch 8011. The two ends of the connecting terminal 804 are respectively connected to the piezoelectric element 802 and the circuit board 13.

[0068] The slot 8011 passes through the piezoelectric support 801, and the end of the slot 8011 is funnel-shaped, and the aperture gradually decreases from the end to the center. This arrangement facilitates the connection terminal 804 to pass through the slot 8011, which is convenient for assembly. Moreover, the piezoelectric terminal 804 is set on the piezoelectric support 801 through the slot 8011, and the piezoelectric support 801 can provide protection for the main body of the piezoelectric terminal 804. The piezoelectric terminal 804 is fixed through the slot 8011 (fixing methods include but are not limited to gluing, welding, etc.), which increases stability and improves structural reliability.

[0069] After the connection terminal 804 passes through the notch 8011, one end thereof is fixedly connected to the piezoelectric element 802, and the other end is fixedly connected to the circuit board 13. Specifically, the connection terminal 804 is welded to the piezoelectric element 802 and the circuit board 13, thereby achieving circuit conduction.

[0070] The piezoelectric unit also includes a counterweight 805, which is fixed to the piezoelectric support 801, near the piezoelectric element 802. Counterweight 805 serves as both a kinetic energy transfer optimizer and a vibration suppressor, directly impacting drive efficiency and system stability. It amplifies thrust through mass inertia and suppresses vibration through damping tuning.

[0071] The piezoelectric support 801 is manufactured using insert molding, with metal components embedded within the piezoelectric support 801. This enhances the strength and reliability of the piezoelectric support 801. The piezoelectric support 801 is fixed to the base 12 using methods including, but not limited to, bonding and integral molding.

[0072] In some embodiments, please refer to Figure 8 and Figure 9 The piezoelectric support 801 has U-shaped grooves 702 at both ends, and the ends of the piezoelectric push rod 803 are located within the two U-shaped grooves 702. The U-shaped grooves 702 provide support and position control for the piezoelectric push rod 803 when it is bonded to the piezoelectric element 802. The U-shaped grooves 702 hold the ends of the piezoelectric push rod 803 in place, preventing it from shifting before bonding. Adhesive is injected into the gaps between the U-shaped grooves 702, wrapping around the piezoelectric push rod 803. After curing, it forms a mechanical locking structure.

[0073] Please refer to Figures 1 to 2 The piezoelectric-driven periscope zoom structure 100 provided in this embodiment also includes a housing 1, which is disposed over a base 12. The housing 1 and base 12 are connected by methods including, but not limited to, snap-fit connections and fasteners such as bolts and pins. The housing 1 is disposed on the base 12 to protect the components within the base 12. It will be appreciated that a corresponding notch is provided in the housing 1 to allow light to pass through the housing 1 and into the base 12.

[0074] Please refer to Figures 1 to 17 In the piezoelectric-driven periscope zoom structure 100 provided by the present invention, the piezoelectric component 8 generates micron-level deformation through the inverse piezoelectric effect and outputs thrust. The piezoelectric driving force output by the piezoelectric component 8 is transmitted to the carrier 7 through the spring 6, driving the carrier 7 to move. The lens 5 carried on the carrier 7 is translated synchronously. The two groups of piezoelectric components 8 work independently to change the distance between the two lenses 5 to achieve optical zoom, which can ensure the displacement accuracy and stability of the lens 5, thereby ensuring the zoom accuracy and improving the zoom performance.

[0075] The displacement of the lens 5 is controlled in a closed-loop manner using a "detection-feedback-adjustment" mechanism. Hall sensors 1301 monitor position deviations in real time and dynamically correct them. Magnet 10 is fixed to carrier 7. As carrier 7 moves, the magnet 10 generates changes in magnetic field intensity. Hall sensors 1301 detect changes in the magnetic field intensity of magnet 10 and output electrical signals related to its position. A driver IC integrated on circuit board 13 receives the Hall signals, calculates the deviation between the actual and target positions of the lens 5, and generates a piezoelectric drive voltage adjustment command. A new piezoelectric drive voltage is generated using a PID algorithm (proportional-integral-differential control). The piezoelectric element 802 in the piezoelectric assembly 8 receives this adjusted voltage, generating precise deformation and driving the carrier 7 and lens 5. The system continuously cycles through detection, feedback, and adjustment until the error between the actual and target positions of the lens 5 approaches zero. This enables precise control of the lens 5's displacement, significantly improving the zoom performance and image quality of the periscope lens.

[0076] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0077] The principles and implementation methods of the present invention are described herein using specific examples. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A piezoelectric driven periscope zoom structure (100), comprising a base (12) and two carriers (7), wherein the two carriers (7) are movably arranged on the base (12), the carriers (7) are provided with lenses (5), and the base (12) is further fixed with a bracket (2), wherein the bracket (2) is equipped with a prism (3), characterized in that: Also includes: Two groups of independently working piezoelectric components (8) are arranged on the base (12), the piezoelectric components (8) include a piezoelectric support (801) and a piezoelectric unit arranged on the piezoelectric support (801), the piezoelectric unit includes a piezoelectric element (802) and a piezoelectric push rod (803), and the piezoelectric element (802) is connected to the piezoelectric push rod (803).

2. The piezoelectric driven periscope zoom structure (100) according to claim 1, characterized in that: A spring sheet (6) is provided on the carrier (7), the spring sheet (6) is connected to the piezoelectric push rod (803), and the spring sheet (6) is in a bent structure.

3. The piezoelectric driven periscope zoom structure (100) according to claim 1, characterized in that: It also includes a circuit board (13) arranged on the base (12), and the circuit board (13) is connected to the piezoelectric elements (802) in the two groups of piezoelectric components (8).

4. The piezoelectric driven periscope zoom structure (100) according to claim 3, characterized in that: A magnet (10) is fixedly provided on the bottom of the carrier (7), and a magnetic attraction member (9) is provided on the base (12).

5. The piezoelectric driven periscope zoom structure (100) according to claim 4, characterized in that: The circuit board (13) is integrated with a Hall sensor (1301).

6. The piezoelectric driven periscope zoom structure (100) according to claim 1, characterized in that: The carrier (7) is further provided with a guide hole (704), a slide rod (4) is provided in the guide hole (704), and both ends of the slide rod (4) are fixedly connected to the base (12).

7. The piezoelectric driven periscope zoom structure (100) according to claim 1, characterized in that: A plurality of rolling balls (11) are also provided between the carrier (7) and the base (12).

8. The piezoelectric driven periscope zoom structure (100) according to claim 2, characterized in that: The carrier (7) is provided with a mounting groove (701), the spring piece (6) is arranged in the mounting groove (701), and bosses (703) are provided on both sides of the mounting groove (701).

9. The piezoelectric driven periscope zoom structure (100) according to claim 3, characterized in that: The piezoelectric unit further comprises a connecting terminal (804); a notch (8011) is provided at the bottom of the piezoelectric support (801); the end of the notch (8011) is funnel-shaped; the connecting terminal (804) passes through the notch (8011); and the two ends of the connecting terminal (804) are respectively connected to the piezoelectric element (802) and the circuit board (13).

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