Periscope camera drive device

Abstract

The present application provides a periscope camera drive device, which relates to the field of optical element drive technology. Among them, the carrier assembly is arranged in the base, and a drive assembly is arranged between the carrier assembly and the base, a circuit board is connected to the base, and the circuit board is electrically connected to the drive assembly, a lens guide assembly is arranged between the bottom of the carrier assembly and the base, a prism guide assembly is arranged between the connecting member and the carrier assembly, the connecting member is fixedly connected to the base, and a cross adapter is arranged between the connecting member and the carrier assembly; the prism guide assembly includes a first ball and a second ball, the first ball is arranged between the carrier assembly and the cross adapter, and the second ball is arranged between the cross adapter and the connecting member; a magnetic attraction assembly is arranged between the cross adapter and the connecting member; the spring is fixedly connected to the carrier assembly and the connecting member. The technical solution of the present application can solve the technical problem that the existing pre-stressing structure uses magnets to pre-stress the prism guide assembly, resulting in insufficient magnetic attraction and affecting the reliability of the motor.

Description

Technical Field

[0001] The present application relates to the field of optical element driving technology, and in particular to a periscope camera driving device. Background Art

[0002] In recent years, with the rapid development of camera lens technology, periscope lenses have been widely used in various electronic products. The periscope lens module of the periscope lens is a lens module that completes optical zoom inside the fuselage, generally including a lens part and a prism part. In order to achieve a wide range of zoom function, both the lens part and the prism part need to be equipped with corresponding drive units to form a complete periscope lens drive device.

[0003] When the existing periscope lens driving device is working, the prism driving unit needs to pre-press the prism guide structure. However, the existing pre-pressing structure mostly only uses magnets to pre-press the prism guide assembly, resulting in insufficient magnetic attraction and affecting the reliability of the motor. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a periscope camera drive device to solve the problem that the existing pre-stressing structure mostly uses magnets to pre-stress the prism guide assembly, resulting in insufficient magnetic attraction and affecting the reliability of the motor.

[0005] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0006] The present application provides a periscope camera driving device, comprising: a base, a carrier assembly, a driving assembly, a prism guide assembly, a lens guide assembly, a connector, a cross adapter, a spring and a circuit board; the carrier assembly is arranged in the base, and a driving assembly is arranged between the carrier assembly and the base, a circuit board is connected to the base, the circuit board is electrically connected to the driving assembly, a lens guide assembly is arranged between the bottom of the carrier assembly and the base, a prism guide assembly is arranged between the connector and the carrier assembly, the connector is fixedly connected to the base, and a cross adapter is arranged between the connector and the carrier assembly;

[0007] The prism guide assembly includes a first ball and a second ball, wherein the first ball is arranged between the carrier assembly and the cross adapter, and the second ball is arranged between the cross adapter and the connecting member; a magnetic attraction assembly is arranged between the cross adapter and the connecting member, and the magnetic attraction assembly pre-presses the second ball;

[0008] The spring sheet is fixedly connected to the carrier assembly and the connecting member, and the spring sheet pre-compresses the first ball and the second ball.

[0009] In some modified embodiments of the present application, the carrier assembly includes: a prism, a prism carrier, a lens and a lens carrier; the prism carrier and the lens carrier are arranged side by side in the base, the prism is arranged in the prism carrier, and the lens is arranged in the lens carrier.

[0010] In some modified embodiments of the present application, a first ball groove a is provided on the side of the cross adapter close to the prism carrier, a first ball groove b corresponding to the first ball groove a is provided on the prism carrier, and the first ball is arranged between the first ball groove a and the first ball groove b; a second ball groove a is provided on the side of the connecting member close to the cross adapter, a second ball groove b corresponding to the second ball groove a is provided on the cross adapter, and the second ball is arranged between the second ball groove a and the second ball groove b.

[0011] In some modified implementations of the present application, the magnetic attraction component includes a first magnet and a magnetic attraction sheet; the first magnet is arranged in a first magnet fixing groove on a side of the connecting member close to the cross adapter, and the magnetic attraction sheet is arranged on a side of the cross adapter close to the connecting member, or the first magnet is arranged in a second magnet fixing groove on a side of the cross adapter close to the connecting member, and the magnetic attraction sheet is arranged on a side of the connecting member close to the cross adapter;

[0012] The first magnet is arranged corresponding to the magnetic attraction sheet, and the first magnet and the magnetic attraction sheet generate magnetic attraction force to pre-press the second ball.

[0013] In some modified implementations of the present application, the lens guide assembly includes a third ball and a guide rail, the bottom of the lens carrier is provided with at least three third ball grooves, the third ball is arranged in the third ball grooves, the bottom of the base is provided with a boss, and the guide rail is fixedly connected to the top of the boss;

[0014] Wherein, the third ball and the third ball groove are arranged correspondingly.

[0015] In some modified embodiments of the present application, metal reinforcements are respectively provided in the lens carrier and the base, at least three third ball grooves are provided on both sides of the bottom of the lens carrier, and the third balls are provided between the third ball groove and the guide rail on one side or between the third ball groove and the metal reinforcement in the base on the other side, and a second magnet is fixed to the metal reinforcement on the base, and the second magnet and the metal reinforcement in the lens carrier generate magnetic attraction to pre-press the third balls.

[0016] In some modified embodiments of the present application, the driving component includes a prism driving component and a lens driving component, the prism driving component is arranged between the base and the prism carrier, and the lens driving component is arranged between the base and the lens carrier; the lens driving component includes a first driving magnet and a first driving coil, the first driving magnet is embedded in the outer side surface of the lens carrier, and the first driving coil corresponding to the first driving magnet is arranged on the circuit board and electrically connected to the circuit board.

[0017] In some modified embodiments of the present application, the prism driving assembly includes a second driving magnet, a second driving coil, a third driving magnet and a third driving coil; the second driving magnet is arranged at the bottom of the prism carrier, and the second driving coil corresponding to the second driving magnet is arranged on the circuit board and electrically connected to the circuit board; the third driving magnet is arranged on the outer side surface of the prism carrier, and the third driving coil corresponding to the third driving magnet is arranged on the circuit board and electrically connected to the circuit board.

[0018] In some modified embodiments of the present application, it also includes: a closed-loop component, the closed-loop component includes a first sensor, a second sensor and a third sensor, the first sensor is arranged in the first drive coil, the first sensor is fixed on the circuit board and is electrically connected to the circuit board; the second sensor is arranged in the second drive coil, the second sensor is fixed on the circuit board and is electrically connected to the circuit board; the third sensor is arranged in the third drive coil, the third sensor is fixed on the circuit board and is electrically connected to the circuit board.

[0019] In some modified implementations of the present application, it also includes: a protective shell, which is buckled on the base.

[0020] Compared with the prior art, the periscope camera drive device provided in the present application adds a magnetic attraction component between the cross adapter and the connecting member. The magnetic attraction force of the magnetic attraction component pre-presses the second ball. An additional spring sheet is fixedly connected to the carrier assembly and the connecting member to pre-press the first ball and the second ball, thereby increasing the magnetic attraction force and improving the motor performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0022] Figure 1The exploded schematic diagram of the periscope camera driving device without a protective shell in the utility model is schematically shown;

[0023] Figure 2 The schematic diagram of the structure of the circuit board connected with the driving coil and the closed-loop component in the utility model is schematically shown;

[0024] Figure 3 The exploded schematic diagram of the first viewing angle of the prism carrier and the first guiding connection of the connecting member in which the magnetic attraction component is set to the first pre-pressing mode in the utility model is schematically shown;

[0025] Figure 4 The exploded view of the second viewing angle of the prism carrier and the connecting member in the first guiding connection in which the magnetic attraction component is set to the second pre-pressing mode in the utility model is schematically shown;

[0026] Figure 5 The exploded schematic diagram of the second guiding connection between the prism carrier and the connecting member in which the magnetic attraction assembly is set to the second pre-pressing mode in the utility model is schematically shown;

[0027] Figure 6 The exploded schematic diagram schematically shows the connection between the lens carrier, the lens guide assembly and the base in the utility model;

[0028] Figure 7 A schematic diagram schematically shows the placement of the lens guide rail in the utility model

[0029] Figure 8 The structure diagram of the periscope camera driving device in the utility model is schematically shown;

[0030] Fig. 9 The structure diagram of the periscope camera driving device in the utility model without a protective shell is schematically shown.

[0031] Description of Figure Numbers:

[0032] 1. Circuit board; 2. Base; 21. Boss; 22. First metal reinforcement; 3. Carrier assembly; 31. Prism; 32. Prism carrier; 321. First ball groove b; 33. Lens; 34. Lens carrier; 341. Second metal reinforcement; 4. Prism guide assembly; 41. First ball; 42. Second ball; 5. Lens guide assembly; 51. Third ball; 52. Guide rail; 6. Connector; 61. Second ball groove a; 62. First magnet fixing groove; 7. Cross adapter; 71. First ball groove a; 72. Second ball groove b ; 73, second magnet fixing groove; 8, driving assembly; 81, lens driving assembly; 811, first driving magnet; 812, first driving coil; 82, prism driving assembly; 821, second driving magnet; 822, second driving coil; 823, third driving magnet; 824, third driving coil; 9, spring piece; 10, magnetic attraction assembly; 101, first magnet; 102, magnetic attraction sheet; 11, second magnet; 12, closed-loop assembly; 121, first sensor; 122, second sensor; 123, third sensor; 13, protective shell. DETAILED DESCRIPTION

[0033] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs. Example

[0035] like Figures 1 to 9 As shown, this embodiment provides a periscope camera driving device, including: a circuit board 1, a base 2, a carrier assembly 3, a prism guide assembly 4, a lens guide assembly 5, a connector 6, a cross adapter 7, a driving assembly 8, a spring 9, a closed-loop assembly 12 and a protective shell 13; the protective shell 13 is buckled on the base 2 to form a receiving space, and other components are placed in the receiving space, the carrier assembly 3 is arranged in the base 2, and a driving assembly 8 is arranged between the carrier assembly 3 and the base 2, a circuit board 1 is connected to the base 2, the circuit board 1 is electrically connected to the driving assembly 8, a lens guide assembly 5 is arranged between the bottom of the carrier assembly 3 and the base 2, a prism guide assembly 4 is arranged between the connector 6 and the carrier assembly 3, the connector 6 is fixedly connected to the base 2, and a cross adapter 7 is arranged between the connector 6 and the carrier assembly 3; the closed-loop assembly 12 is arranged in the driving assembly 8, and the closed-loop assembly 12 is fixed on the circuit board 1 and electrically connected to the circuit board 1;

[0036] The prism guide assembly 4 includes a first ball 41 and a second ball 42. The first ball 41 is arranged between the carrier assembly 3 and the cross adapter 7, and the second ball 42 is arranged between the cross adapter 7 and the connecting member 6. A magnetic attraction assembly 10 is arranged between the cross adapter 7 and the connecting member 6. The magnetic attraction assembly 10 pre-presses the second ball 42. The spring piece 9 is fixedly connected to the carrier assembly 3 and the connecting member 6. The spring piece 9 pre-presses the first ball 41 and the second ball 42. The spring piece 9 has reset and pre-pressing functions; the driving assembly 8 utilizes the guidance of the prism guide assembly 4 and the lens guide assembly 5 to drive the carrier assembly 3 to move.

[0037] The utility model adds a magnetic attraction component 10 between the connecting member 6 and the cross adapter 7. The magnetic attraction force of the magnetic attraction component 10 pre-stresses the second ball 42. The spring piece 9 is fixedly connected to the connecting member 6 and the prism carrier 32 in the carrier component 3, and the first ball 41 and the second ball 42 are pre-stressed, thereby increasing the magnetic attraction force and improving the motor performance, so as to solve the problem of insufficient magnetic attraction force in the prior art that the magnetic attraction structure pre-stresses the first ball and the second ball at the same time.

[0038] Specifically, the carrier assembly 3 includes: a prism 31, a prism carrier 32, a lens 33 and a lens carrier 34; the prism carrier 32 and the lens carrier 34 are arranged side by side in the base 2, the prism 31 is arranged in the prism carrier 32, and the lens 33 is arranged in the lens carrier 34. An anti-collision structure can be arranged in the lens carrier 34, and the anti-collision structure can adopt a soft rubber structure, which can improve abnormal noise during movement.

[0039] like Figures 3 to 5 As shown, in a specific implementation, a first ball groove a71 is provided on the side of the cross adapter 7 close to the prism carrier 32, a first ball groove b321 corresponding to the first ball groove a71 is provided on the prism carrier 32, and the first ball 41 is provided between the first ball groove a71 and the first ball groove b321; a second ball groove a61 is provided on the side of the connecting member 6 close to the cross adapter 7, a second ball groove b72 corresponding to the second ball groove a61 is provided on the cross adapter 7, and the second ball 42 is provided between the second ball groove a61 and the second ball groove b72.

[0040] The magnetic attraction assembly 10 includes a first magnet 101 and a magnetic attraction sheet 102; the first pre-compression method of the magnetic attraction assembly 10 and the connecting member 6 and the cross adapter 7 is: the first magnet 101 is arranged in the first magnet fixing groove 62 on the side of the connecting member 6 close to the cross adapter 7, such as Figure 3As shown, the magnetic sheet 102 is arranged on the side of the cross adapter 7 close to the connecting member 6; the second way of connecting the magnetic assembly 10 with the connecting member 6 and the cross adapter 7 is: the first magnet 101 is arranged in the second magnet fixing groove 73 on the side of the cross adapter 7 close to the connecting member 6, and the magnetic sheet 102 is arranged on the side of the connecting member 6 close to the cross adapter 7, as shown in FIG. Figure 4 , Figure 5 As shown; the first magnet 101 and the magnetic sheet 102 are arranged correspondingly, and the first magnet 101 and the magnetic sheet 102 attract each other to generate magnetic attraction force to pre-press the second ball 42.

[0041] like Figure 6 As shown, in a specific implementation, the lens guide assembly 5 includes a third ball 51 and a guide rail 52, at least three third ball grooves are provided at the bottom of the lens carrier 34, the third ball 51 is arranged in the third ball groove, and bosses 21 are provided on both sides of the bottom of the base 2, and the guide rail 52 is fixedly connected to the top of the boss 21 on one side of the bottom of the base 2;

[0042] Metal reinforcements are respectively provided in the lens carrier 34 and the base 2, at least three third ball grooves are respectively provided on both sides of the bottom of the lens carrier 34, and the third balls 51 are correspondingly provided on both sides of the bottom of the lens carrier 34. The third balls 51 are provided between the third ball groove and the guide rail 52 on one side or between the third ball groove and the first metal reinforcement 22 in the base 2 on the other side. The third balls 51 on one side are provided between the third ball groove and the guide rail 52, and the third balls 51 on the other side are provided between the third ball groove and the first metal reinforcement 22 in the base 2. The first metal reinforcement 22 on the base 2 is fixed with a second magnet 11, and the first metal reinforcement 22 is exposed from the boss 21 on the other side of the bottom of the base 2. The second magnet 11 and the second metal reinforcement 341 in the lens carrier 34 generate magnetic attraction to pre-press the third balls 51. The third balls 51 and the third ball grooves are provided correspondingly, the number of guide rails 52 is set to one, and the number of third ball grooves is preferably three.

[0043] like Figure 1 As shown, in a specific implementation, the driving assembly 8 includes a lens driving assembly 81 and a prism driving assembly 82, the lens driving assembly 81 is disposed between the base 2 and the lens carrier 34, and the prism driving assembly 82 is disposed between the base 2 and the prism carrier 32;

[0044] The lens driving assembly 81 includes a first driving magnet 811 and a first driving coil 812 . The first driving magnet 811 is embedded in the outer side of the lens carrier 34 . The first driving coil 812 corresponding to the first driving magnet 811 is disposed on the circuit board 1 and electrically connected to the circuit board 1 .

[0045] The prism driving assembly 82 includes a second driving magnet 821, a second driving coil 822, a third driving magnet 823 and a third driving coil 824; the second driving magnet 821 is arranged at the bottom of the prism carrier 32, and the second driving coil 822 corresponding to the second driving magnet 821 is arranged on the circuit board 1 and electrically connected to the circuit board 1; the third driving magnet 823 is arranged on the outer side surface of the prism carrier 32, and the third driving coil 824 corresponding to the third driving magnet 823 is arranged on the circuit board 1 and electrically connected to the circuit board 1.

[0046] like Figure 2 As shown, in a specific implementation, the closed-loop component 12 includes a first sensor 121, a second sensor 122 and a third sensor 123. The first sensor 121 is disposed in the first drive coil 812, and the first sensor 121 is fixed on the circuit board 1 and electrically connected to the circuit board 1; the second sensor 122 is disposed in the second drive coil 822, and the second sensor 122 is fixed on the circuit board 1 and electrically connected to the circuit board 1; the third sensor 123 is disposed in the third drive coil 824, and the third sensor 123 is fixed on the circuit board 1 and electrically connected to the circuit board 1.

[0047] Working principle:

[0048] The circuit board 1 receives an external electrical signal and transmits the electrical signal to the second driving coil 822. The magnetic field generated by the second driving coil 822 and the second driving magnet 821 interacts with each other to form a Lorentz force, thereby jointly driving the prism 31 and the prism carrier 32 to rotate with the y-axis as the rotation axis;

[0049] The circuit board 1 receives an external electrical signal and transmits the electrical signal to the third driving coil 824. The magnetic field generated by the third driving coil 824 and the third driving magnet 823 interacts with each other to form a Lorentz force, thereby driving the prism 31, the prism carrier 32 and the cross adapter 7 to rotate together with the z-axis as the rotation axis.

[0050] The circuit board 1 receives an external electrical signal and transmits the electrical signal to the first driving coil 812. The magnetic field generated by the first driving coil 812 and the first driving magnet 811 interacts with each other to form a Lorentz force, thereby driving the lens 33 and the lens carrier 34 to move linearly along the x-axis.

[0051] Control principle:

[0052] The circuit board 1 receives an external electrical signal and transmits a control signal to the second sensor 122, thereby detecting and controlling the movement of the prism 31 and the prism carrier 32 with the y-axis as the rotation axis;

[0053] The circuit board 1 receives an external electrical signal and transmits a control signal to the third sensor 123, thereby detecting and controlling the movement of the prism 31, the prism carrier 32 and the cross adapter 7 with the z-axis as the rotation axis;

[0054] The circuit board 1 receives an external electrical signal and transmits a control signal to the first sensor 121 , thereby detecting and controlling the movement of the lens 33 and the lens carrier 34 along the x-axis.

[0055] It should be noted that the x-axis in this embodiment is the direction of the lens optical axis, the y-axis is perpendicular to the x-axis in the horizontal direction, and the z-axis is perpendicular to the x-axis in the vertical direction.

[0056] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A periscope camera driving device, characterized in that: include: A base, a carrier assembly, a driving assembly, a prism guide assembly, a lens guide assembly, a connector, a cross adapter, a spring and a circuit board; the carrier assembly is arranged in the base, and a driving assembly is arranged between the carrier assembly and the base, a circuit board is connected to the base, the circuit board is electrically connected to the driving assembly, a lens guide assembly is arranged between the bottom of the carrier assembly and the base, a prism guide assembly is arranged between the connector and the carrier assembly, the connector is fixedly connected to the base, and a cross adapter is arranged between the connector and the carrier assembly; The prism guide assembly includes a first ball and a second ball, wherein the first ball is arranged between the carrier assembly and the cross adapter, and the second ball is arranged between the cross adapter and the connecting member; a magnetic attraction assembly is arranged between the cross adapter and the connecting member, and the magnetic attraction assembly pre-presses the second ball; The spring sheet is fixedly connected to the carrier assembly and the connecting member, and the spring sheet pre-compresses the first ball and the second ball.

2. The periscope camera driving device according to claim 1, characterized in that: The carrier component comprises: a prism, a prism carrier, a lens and a lens carrier; the prism carrier and the lens carrier are arranged in parallel in the base, the prism is arranged in the prism carrier, and the lens is arranged in the lens carrier.

3. The periscope camera driving device according to claim 2, characterized in that: A first ball groove a is provided on the side of the cross adapter close to the prism carrier, a first ball groove b corresponding to the first ball groove a is provided on the prism carrier, and the first ball is arranged between the first ball groove a and the first ball groove b; a second ball groove a is provided on the side of the connecting member close to the cross adapter, a second ball groove b corresponding to the second ball groove a is provided on the cross adapter, and the second ball is arranged between the second ball groove a and the second ball groove b.

4. The periscope camera driving device according to claim 1, characterized in that: The magnetic attraction component includes a first magnet and a magnetic attraction sheet; the first magnet is arranged in a first magnet fixing groove on a side of the connecting member close to the cross adapter, and the magnetic attraction sheet is arranged on a side of the cross adapter close to the connecting member, or the first magnet is arranged in a second magnet fixing groove on a side of the cross adapter close to the connecting member, and the magnetic attraction sheet is arranged on a side of the connecting member close to the cross adapter; The first magnet is arranged corresponding to the magnetic attraction sheet, and the first magnet and the magnetic attraction sheet generate magnetic attraction force to pre-press the second ball.

5. The periscope camera driving device according to claim 2, characterized in that: The lens guide assembly includes a third ball and a guide rail, the bottom of the lens carrier is provided with at least three third ball grooves, the third ball is arranged in the third ball grooves, the bottom of the base is provided with a boss, and the guide rail is fixedly connected to the top of the boss; Wherein, the third ball and the third ball groove are arranged correspondingly.

6. The periscope camera driving device according to claim 5, characterized in that: Metal reinforcements are respectively provided in the lens carrier and the base, at least three third ball grooves are provided on both sides of the bottom of the lens carrier, the third balls are provided between the third ball groove and the guide rail on one side or between the third ball groove and the metal reinforcement in the base on the other side, a second magnet is fixed on the metal reinforcement on the base, the second magnet and the metal reinforcement in the lens carrier generate magnetic attraction to pre-press the third balls.

7. The periscope camera driving device according to claim 2, characterized in that: The driving component includes a prism driving component and a lens driving component, the prism driving component is arranged between the base and the prism carrier, and the lens driving component is arranged between the base and the lens carrier; the lens driving component includes a first driving magnet and a first driving coil, the first driving magnet is embedded in the outer side surface of the lens carrier, and the first driving coil corresponding to the first driving magnet is arranged on the circuit board and electrically connected to the circuit board.

8. The periscope camera driving device according to claim 7, characterized in that: The prism driving assembly includes a second driving magnet, a second driving coil, a third driving magnet and a third driving coil; the second driving magnet is arranged at the bottom of the prism carrier, and the second driving coil corresponding to the second driving magnet is arranged on the circuit board and electrically connected to the circuit board; the third driving magnet is arranged on the outer side surface of the prism carrier, and the third driving coil corresponding to the third driving magnet is arranged on the circuit board and electrically connected to the circuit board.

9. The periscope camera driving device according to claim 8, characterized in that: Also includes: A closed-loop component, the closed-loop component includes a first sensor, a second sensor and a third sensor, the first sensor is arranged in the first drive coil, the first sensor is fixed on the circuit board and is electrically connected to the circuit board; the second sensor is arranged in the second drive coil, the second sensor is fixed on the circuit board and is electrically connected to the circuit board; the third sensor is arranged in the third drive coil, the third sensor is fixed on the circuit board and is electrically connected to the circuit board.

10. The periscope camera driving device according to claim 1, characterized in that: Also includes: A protective shell is buckled on the base.

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