Anti-shake mechanism for prism

Abstract

The invention relates to the technical field of prism anti-shake driving, in particular to a prism anti-shake mechanism. According to the prism anti-shake mechanism, the prism carrier and the flexible circuit board are respectively arranged in the accommodating space of the shell, and the flexible circuit board is arranged on the prism carrier, so that miniaturization of the prism anti-shake mechanism is facilitated; meanwhile, the elastic conductive part is connected between the prism carrier and the shell, the elastic conductive part is used for electrically connecting the flexible circuit board with an external circuit, and the elastic conductive part can provide restoring force when the prism carrier moves so as to suppress crosstalk in other directions when the anti-shake function in the current anti-shake direction is achieved; signal transmission between the flexible circuit board and an external circuit is achieved through the elastic conductive part, it is avoided that complex wiring occupies a large space, and miniaturization of the prism anti-shake mechanism is achieved.

Description

Technical Field

[0001] This application relates to the field of prism stabilization drive technology, specifically to a prism stabilization mechanism. Background Technology

[0002] With the development of imaging technology and the rise of electronic products with imaging capabilities, optical lenses are widely used in various electronic products. Existing periscope lens modules all require a prism stabilization mechanism to achieve prism image stabilization.

[0003] In the background art, the prism stabilization mechanism includes a base, a stabilization structure for fixing the prism disposed in the base, a drive unit for driving the movement of the stabilization structure, and a circuit board fixed to the outside of the base. The circuit board being disposed on the outside of the base is not conducive to the miniaturization of the prism stabilization mechanism.

[0004] Therefore, it is necessary to provide a new prism stabilization mechanism to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this application is to provide a prism stabilization mechanism that solves the technical problems in the prior art that hinder the miniaturization of prism stabilization mechanisms.

[0006] The technical solution of this application is as follows: This application provides a prism image stabilization mechanism, including: A shell with containment space; A prism carrier located within the containment space, the prism carrier being rotatably disposed on the housing, the prism carrier being used to fix a prism assembly, the prism carrier including a first side and a second side disposed opposite to each other in a first direction, and a carrier portion connecting the first side and the second side, the carrier portion having a third side, the third side being perpendicular to the first side and the third side being perpendicular to a second direction, the second direction being perpendicular to the first direction; A drive unit located within the containment space, the drive unit being used to drive the prism carrier to rotate; A flexible circuit board located within the containment space is disposed on the prism carrier and electrically connected to the drive unit. The flexible circuit board includes a first flexible portion and a second flexible portion disposed opposite to each other, and a third flexible portion connected between the first flexible portion and the second flexible portion. The first flexible portion is attached to the first side portion, the second flexible portion is attached to the second side portion, and the third flexible portion is attached to the third side portion. In addition, an elastic conductive element located within the receiving space, the elastic conductive element comprising a first connecting portion fixed to the prism carrier, a second connecting portion fixed to the housing, and an elastic portion disposed between the first connecting portion and the second connecting portion, the elastic conductive element being used to electrically connect the flexible circuit board to an external circuit.

[0007] Preferably, the housing includes a base and a bracket fixed to the base and forming the receiving space with the base, and the prism carrier is rotatably disposed on the base.

[0008] Preferably, the base includes a base plate and a support column disposed on the base plate, wherein the end of the support column away from the base plate has a first groove; The prism carrier has a receiving groove on the side facing the base, the bottom wall of the receiving groove has a second groove, and the support column extends into the receiving groove; The prism anti-shake mechanism also includes a ball bearing, which is sandwiched between the first groove and the second groove.

[0009] Preferably, the ball bearing is fixedly connected to the inner wall of the second groove.

[0010] Preferably, the first groove includes a plurality of outwardly inclined first plastic ramps, the plurality of first plastic ramps intersect at a first common point, the ball contacts any of the first plastic ramps, and the ball slides in contact with the base.

[0011] Preferably, the ball bearing is fixedly connected to the inner wall of the first groove.

[0012] Preferably, the second groove includes a plurality of outwardly inclined second plastic ramps, the plurality of second plastic ramps intersecting at a second common point, the ball contacting any of the second plastic ramps, and the ball slidingly contacting the prism carrier.

[0013] Preferably, the driving component includes a first driving assembly and a second driving assembly, the first driving assembly being fixed to the first side and / or the second side, and the second driving assembly being fixed to the third side.

[0014] Preferably, the first driving component includes a first coil fixed to the first flexible part and / or the second flexible part and a first magnet fixed to the bracket. The first coil and the corresponding first magnet are arranged at a distance from each other in the first direction. The first coil is located within the magnetic field range of the first magnet and is electrically connected to the flexible circuit board. The second driving component includes a second coil fixed to the third flexible part and a second magnet fixed to the bracket. The second coil and the second magnet are arranged at a distance from each other in the second direction, and the second coil is located within the magnetic field range of the second magnet. The second coil is electrically connected to the flexible circuit board.

[0015] Preferably, the first side portion and / or the second side portion has at least one first protrusion, which is engaged within the first coil; the third side portion has at least one second protrusion, which is engaged within the second coil.

[0016] Preferably, the first connecting portion and the second connecting portion are parallel to the base plate, and in the thickness direction of the base plate, the side of the first connecting portion facing the base plate is higher than the side of the second connecting portion facing away from the base plate.

[0017] Preferably, the first connecting part is fixed to the side of the prism carrier facing the base, and the second connecting part is fixed to the bracket and located between the bracket and the base plate.

[0018] Preferably, the first connecting portion and the second connecting portion of the elastic conductive element are disposed opposite to each other in a first direction or a second direction.

[0019] Preferably, the flexible circuit board further includes a fourth flexible portion attached to the side of the prism carrier facing the base; The prism carrier has a receiving groove in the middle of the side facing the base. The fourth flexible part and the first connecting part are respectively fixed at the edge of the receiving groove. In the thickness direction of the base plate, the side of the prism carrier facing the base, the fourth flexible part and the first connecting part are arranged in sequence. The projection of the fourth flexible part on the prism carrier overlaps with the projection of the first connecting part on the prism carrier. The fourth flexible part and the first connecting part are electrically connected by metal solder.

[0020] Preferably, the bracket has an output structure on the side facing the base plate, and the elastic conductive element further includes a third connecting part connected to the second connecting part, with the free end of the third connecting part located within the output structure.

[0021] Preferably, multiple elastic conductive elements are provided, and the output structure includes multiple connecting slots that communicate with the outside, with each of the multiple connecting slots corresponding to one of the multiple elastic conductive elements.

[0022] Preferably, the elastic portion extends meanderingly between the first connecting portion and the second connecting portion.

[0023] Preferably, the elastic portion includes a first curved elastic arm extending from the first connecting portion toward the second connecting portion, a second curved elastic arm extending from one end of the first curved elastic arm near the second connecting portion toward the first connecting portion, and a third curved elastic arm extending from one end of the second curved elastic arm near the first connecting portion toward the second connecting portion.

[0024] Preferably, the prism carrier is provided with at least one counterweight.

[0025] The beneficial effects of this application are as follows: The prism stabilization mechanism of this application sets the prism carrier and the flexible circuit board respectively in the housing's receiving space, with the flexible circuit board placed on the prism carrier, which is conducive to miniaturization of the prism stabilization mechanism; at the same time, an elastic conductive element is connected between the prism carrier and the housing, and the elastic conductive element is used to electrically connect the flexible circuit board to the external circuit. When the prism carrier moves, the elastic conductive element can provide a restoring force to suppress crosstalk in other directions while achieving the stabilization function in the current stabilization direction. Meanwhile, the elastic conductive element realizes signal transmission between the flexible circuit board and the external circuit, avoiding complex wiring that occupies a large space, which is conducive to miniaturization of the prism stabilization mechanism. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a prism stabilization mechanism according to an embodiment of this application.

[0027] Figure 2 for Figure 1 The top view of the prism stabilization mechanism shown.

[0028] Figure 3 for Figure 2 The cross-sectional view along direction AA is shown in the figure.

[0029] Figure 4 for Figure 2 The cross-sectional view along the BB direction is shown in the figure.

[0030] Figure 5 for Figure 1 The diagram shows an exploded view of the prism stabilization mechanism.

[0031] Figure 6 for Figure 1 The diagram shows an exploded view of the prism stabilization mechanism from another perspective.

[0032] Figure 7 for Figure 1 The diagram shows the interaction between the prism carrier, the elastic conductive component, and the base in the prism stabilization mechanism.

[0033] Figure 8 for Figure 7The diagram shows the interaction between the prism carrier and the flexible circuit board in the prism stabilization mechanism.

[0034] Figure 9 for Figure 1 The diagram shows the interaction between the prism carrier, flexible circuit board, first coil, and second coil in the prism stabilization mechanism.

[0035] Figure 10 for Figure 1 The diagram shows the interaction between the prism carrier, the elastic conductive component, and the base in the prism stabilization mechanism from another perspective.

[0036] Figure 11 for Figure 1 The diagram shows the cooperation between the prism carrier and the fourth flexible part in the prism stabilization mechanism.

[0037] Figure 12 for Figure 1 The diagram shows the cooperation of the prism carrier, the fourth flexible part, and the first connecting part in the prism stabilization mechanism.

[0038] Figure 13 for Figure 1 The diagram shows the interaction between the prism carrier and the elastic conductive component in the prism stabilization mechanism.

[0039] Figure 14 for Figure 1 The diagram shows the cooperation between the bracket and the elastic conductive component in the prism stabilization mechanism.

[0040] Figure 15 for Figure 1 The diagram shows the structure of the elastic conductive component in the prism anti-shake mechanism.

[0041] Figure 16 for Figure 1 The diagram shows the structure of the prism stabilization mechanism with the base removed.

[0042] Figure 17 This is a schematic diagram of the structure of a prism device according to an embodiment of this application.

[0043] Figure 18 This is a schematic diagram of the structure of a periscope lens module according to an embodiment of this application.

[0044] In the diagram: 100 - Prism anti-shake mechanism; 10 - Housing; 10a - Reception space; 11 - Base; 111 - Base plate; 112 - Support column; 113 - First groove; 1131 - First plastic inclined surface; 1132 - First common point; 12 - Bracket; 121 - Output structure; 1211 - Connecting groove; 122 - First cover plate; 123 - Window; 124 - Second cover plate; 125 - Third cover plate; 101 - First rotation axis; 102 - Second rotation axis; 20 - Prism carrier; 21 - Reception groove; 211 - Second groove; 2111 - Second plastic inclined surface; 2112 - Second common point; 221 - First side; 222 - Second side; 224 - First protrusion; 225 - Second protrusion; 22 3-Carrier portion; 2231-Third side portion; 226-Third protrusion; 20a-Prism assembly; 30-Driver; 31-First drive assembly; 311-First coil; 312-First magnet portion; 3111-First binding wire; 32-Second drive assembly; 321-Second coil; 322-Second magnet portion; 3211-Second binding wire; 40-Flexible circuit board; 41-First flexible portion; 42-Second flexible portion; 43-Third flexible portion; 44-Fourth flexible portion; 50-Elastic conductive element; 51-First connecting portion; 52-Second connecting portion; 53-Elastic portion; 54-Third connecting portion; 531-First curved spring arm; 532-Second curved spring arm; 533-Third curved spring arm; 60-Ball bearing. Detailed Implementation

[0045] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0046] Please see Figures 1 to 15 As shown, one embodiment of this application provides a prism stabilization mechanism 100, including a housing 10, a prism carrier 20, a driving component 30, a flexible circuit board 40, and an elastic conductive component 50.

[0047] The housing 10 has a receiving space 10a, in which the prism carrier 20, the driving component 30, the flexible circuit board 40 and the elastic conductive component 50 are respectively disposed.

[0048] The prism carrier 20 is used to fix the prism assembly 20a, and the prism carrier 20 is rotatably mounted on the housing 10. For example, please refer to [reference needed]. Figure 3 and Figure 4 As shown, when the prism carrier 20 rotates along the first rotation axis 101 as the rotation center, it achieves the anti-shake function in the first direction; when the prism carrier 20 rotates along the second rotation axis 102 as the rotation center, it achieves the anti-shake function in the second direction.

[0049] The driving component 30 is used to drive the prism carrier 20 to rotate. For example, the driving component 30 can drive the prism carrier 20 to rotate along the first rotation axis 101 as the rotation center, and the driving component 30 can also drive the prism carrier 20 to rotate along the second rotation axis 102 as the rotation center.

[0050] The flexible circuit board 40 is disposed on the prism carrier 20 and is electrically connected to the driving component 30.

[0051] The elastic conductive element 50 includes a first connecting portion 51, a second connecting portion 52, and an elastic portion 53. The first connecting portion 51 is fixed to the prism carrier 20, the second connecting portion 52 is fixed to the housing 10, and the elastic portion 53 is disposed between the first connecting portion 51 and the second connecting portion 52. For example, when the prism carrier 20 rotates along the first rotation axis 101 as the rotation center, the elastic portion 53 provides a restoring force to suppress the rotation of the prism carrier 20 along the second rotation axis 102, thereby avoiding crosstalk; when the prism carrier 20 rotates along the second rotation axis 102 as the rotation center, the elastic portion 53 provides a restoring force to suppress the rotation of the prism carrier 20 along the first rotation axis 101, thereby avoiding crosstalk.

[0052] The elastic conductive element 50 is also used to electrically connect the flexible circuit board 40 to an external circuit. For example, the external circuit may include an external power supply circuit, which is electrically connected to the driving element 30 via the elastic conductive element 50 and the flexible circuit board 40 to supply power to the driving element 30. The external circuit may also include an external control circuit, which can send a control signal to the flexible circuit board 40 via the elastic conductive element 50, so that the flexible circuit board 40 controls the driving element 30 to drive the prism carrier 20 to rotate along the first rotation axis 101 or along the second rotation axis 102 according to the control signal.

[0053] In this embodiment, the prism carrier and the flexible circuit board are respectively disposed within the housing's receiving space. The flexible circuit board is disposed on the prism carrier, which facilitates the miniaturization of the prism stabilization mechanism. Simultaneously, an elastic conductive element is connected between the prism carrier and the housing. The elastic conductive element is used to electrically connect the flexible circuit board to the external circuit. When the prism carrier moves, the elastic conductive element can provide restoring force to suppress crosstalk in other directions while achieving the stabilization function in the current stabilization direction. At the same time, the elastic conductive element realizes signal transmission between the flexible circuit board and the external circuit, avoiding complex wiring that occupies a large space, which is conducive to the miniaturization of the prism stabilization mechanism.

[0054] As one implementation method, please refer to Figures 1 to 15As shown, the housing 10 includes a base 11 and a bracket 12. The bracket 12 is fixed to the base 11, and the bracket 12 and the base 11 enclose the receiving space 10a. The prism carrier 20 is rotatably disposed on the base 11.

[0055] In this embodiment, by rotatably mounting the prism carrier on the base, the stability of the prism carrier can be improved.

[0056] In some implementations, please refer to Figure 5 As shown, the base 11 includes a base plate 111 and a support column 112 disposed on the base plate 111. The end of the support column 112 away from the base plate 11 has a first groove 113.

[0057] The prism carrier 20 has a receiving groove 21 on the side facing the base 11. The bottom wall of the receiving groove 21 has a second groove 211. The support column 112 extends into the receiving groove 21. At this time, the first groove 113 and the second groove 211 are arranged opposite to each other. Exemplarily, the extending direction of the support column 112 can be perpendicular to the base plate 111, the extending direction of the support column 112 can be the thickness direction of the base plate 111, and the extending direction of the support column 112 can be the focusing direction.

[0058] The prism stabilization mechanism 100 of this embodiment also includes a ball bearing 60, which is sandwiched between the first groove 113 and the second groove 211. The ball bearing 60 can contact the inner wall of the first groove 113 and the inner wall of the second groove 211 respectively. The ball bearing 60 can move relative to the first groove 113 to make the prism carrier rotate relative to the support column 112, or the ball bearing 60 can move relative to the second groove 211 to make the prism carrier 20 rotate relative to the support column 112. For example, the center of the ball 60 can be the intersection of the first rotation axis 101 and the second rotation axis 102. When the ball 60 is not fixed, it is clamped by the first groove 113 and the second groove 211, and the ball 60 can only rotate around its center. The prism carrier 20 rotates around the first rotation axis 101 or the second rotation axis 102. At this time, the ball 60 rotates relative to the first groove 113 and relative to the second groove 211. When the ball 60 is fixed to the first groove 113, the prism carrier 20 rotates around the first rotation axis 101 or the second rotation axis 102. At this time, the ball 60 is stationary relative to the first groove 113 and moves relative to the second groove 211. When the ball 60 is fixed to the second groove 211, the prism carrier 20 rotates around the first rotation axis 101 or the second rotation axis 102. At this time, the ball 60 is stationary relative to the second groove 211 and moves relative to the first groove 113.

[0059] In this embodiment, the ball bearing serves as the rotation center of the prism carrier around the first and second rotation axes, which helps to simplify the structure.

[0060] In some embodiments, the ball bearing 60 is fixedly connected to the inner wall of the second groove 211. When the prism carrier 20 rotates about the first rotation axis 101 or the second rotation axis 102, the ball bearing 60 remains stationary relative to the second groove 211 and moves relative to the first groove 113. Exemplarily, the ball bearing 60 can be fixed to the second groove 211 with adhesive.

[0061] In this embodiment, by fixing the ball bearing to the second groove, the ball bearing and the prism carrier are integrated. The prism carrier rotates around the first rotation axis and the second rotation axis by the movement of the ball bearing relative to the first groove, which can improve the stability of the rotation of the prism carrier.

[0062] In some implementations, please refer to Figures 3 to 5 As shown, the first groove 113 includes a plurality of outwardly inclined first plastic ramps 1131, which intersect at a first common point 1132, and the ball 60 contacts any of the first plastic ramps 1131.

[0063] In this embodiment, two adjacent first plastic inclined surfaces 1131 intersect at a common edge, and all common edges intersect at a first common point 1132. When the prism carrier 20 rotates, the ball bearing 60 slides in contact with the first plastic inclined surface 1131, that is, the ball bearing 60 slides in contact with the base 11. Compared with the arc-shaped groove, in this embodiment, the ball bearing 60 does not directly contact the bottom of the groove but contacts the side wall of the groove, and the contact area between the ball bearing 60 and the first plastic inclined surface 1131 is greatly reduced, which can reduce the friction between the ball bearing 60 and the first groove 113, making the rotation of the prism carrier 20 smoother and providing stability for the rotation of the prism carrier 20. At the same time, the first plastic inclined surface 1131 has a large hardness, which can prevent it from being damaged by the ball bearing when falling. For example, there can be three first plastic inclined surfaces 1131, which intersect at the same first common point 1132. The three first plastic inclined surfaces 1131 enclose a receiving space that is similar to an inverted pyramid structure. For example, a plastic material layer can be coated on each sidewall of the first groove 113 having a similar inverted pyramid structure, and the surface of each plastic material layer is a first plastic slope 1131; or, a plastic sheet can be attached to each sidewall of the first groove 113 having a similar inverted pyramid structure, the plastic sheet being adapted to the shape of the sidewall of the first groove 113, and the surface of each plastic sheet being a first plastic slope 1131.

[0064] In some embodiments, the ball bearing 60 is fixedly connected to the inner wall of the first groove 113. When the prism carrier 20 rotates about the first rotation axis 101 or the second rotation axis 102, the ball bearing 60 remains stationary relative to the first groove 113 and moves relative to the second groove 211. Exemplarily, the ball bearing 60 can be fixed to the first groove 113 with adhesive.

[0065] In this embodiment, by fixing the ball bearing to the first groove, the ball bearing and the base are integrated, and the prism carrier rotates around the first and second rotation axes by the movement of the ball bearing relative to the second groove, the stability of the prism carrier rotation can be improved.

[0066] In some implementations, please refer to Figure 16 As shown, the second groove 211 includes multiple outwardly inclined second plastic ramps 2111, which intersect at a second common point 2112. The ball 60 contacts any of the second plastic ramps 2111. When the prism carrier 20 rotates, the ball 60 slides in contact with the second plastic ramps 2111, that is, the ball 60 slides in contact with the prism carrier 20. Compared with the arc-shaped groove, the ball 60 in this embodiment does not directly contact the bottom of the groove but contacts the side wall of the groove. The contact area between the ball 60 and the second plastic ramps 2111 is greatly reduced, which can reduce the friction between the ball 60 and the second groove 211, making the rotation of the prism carrier 20 smoother and providing stability for the rotation of the prism carrier 20. At the same time, the second plastic ramps 2111 have high hardness, which can prevent them from being damaged by the ball when falling. For example, the number of second plastic ramps 2111 can be three, and the three second plastic ramps 2111 intersect at the same second common point 2112. The accommodating space formed by the three second plastic ramps 2111 is a structure similar to an inverted pyramid. For example, a plastic material layer can be coated on each sidewall of the second groove 211 with a structure similar to an inverted pyramid, and the surface of each plastic material layer is a second plastic ramp 2111; or, a plastic sheet can be attached to each sidewall of the second groove 211 with a structure similar to an inverted pyramid, the plastic sheet being adapted to the shape of the sidewall of the second groove 211, and the surface of each plastic sheet is a second plastic ramp 2111.

[0067] In some implementations, please refer to Figure 10 As shown, the first connecting part 51 and the second connecting part 52 can be parallel to the base plate 111 respectively. In the thickness direction of the base plate 111, that is, in the focusing direction, the side of the first connecting part 51 facing the base plate 111 is higher than the side of the second connecting part 52 facing away from the base plate 111.

[0068] In this embodiment, the heights of the first connecting part and the second connecting part are different. When the prism carrier is not rotating, the elastic part has been stretched by a relatively small amplitude. Under the action of the above stretching, the elastic part has generated a relatively small restoring force. This restoring force applies a downward pulling force to the prism carrier, causing the prism carrier to be pressed towards the ball and the support column, which helps to improve the stability of the rotation of the prism carrier and further suppress crosstalk.

[0069] In some implementations, please refer to Figure 5 and Figure 6 As shown, the prism carrier 20 includes a first side portion 221 and a second side portion 222 disposed opposite to each other in a first direction, and a carrier portion 223 connecting the first side portion 221 and the second side portion 222. The carrier portion 223 is used to carry the prism assembly 20a. The carrier portion 223 has a third side portion 2231, which is perpendicular to the base plate 111 and the first side portion 221, respectively.

[0070] The flexible circuit board 40 includes a first flexible portion 41 and a second flexible portion 42 disposed opposite to each other, and a third flexible portion 43 connected between the first flexible portion 41 and the second flexible portion 42. The first flexible portion 41 is attached to the first side portion 221, the second flexible portion 42 is attached to the second side portion 222, and the third flexible portion 43 is attached to the third side portion 2231.

[0071] In this embodiment, the three flexible parts of the flexible circuit board are respectively attached to the three sides of the prism carrier, which can further reduce the volume and facilitate the miniaturization of the mechanism.

[0072] In some embodiments, a first cover plate 122 is provided on the bracket 12. The first cover plate 122 is fixed to the outside of the bracket 12. A window 123 is provided on the first cover plate 122. The first cover plate 122 and the third side portion 2231 are arranged opposite to each other in the second direction. The prism group 20a is exposed through the window 123.

[0073] In some implementations, please refer to Figures 3 to 6 As shown, the drive component 30 includes a first drive assembly 31 and a second drive assembly 32.

[0074] The first drive component 31 can be provided as one, fixed to the first side 221 or the second side 222; or two first drive components 31 can be provided, fixed to the first side 221 and the second side 222 respectively. The second drive component 32 is fixed to the third side 2231.

[0075] At least one first driving component 31 is used to drive the prism carrier 20 to rotate along the first rotation axis 101, so that the prism carrier 20 "shakes" in the first direction, thereby achieving anti-shaking of the prism carrier 20 in the first direction; the second driving component 32 is used to drive the prism carrier 20 to rotate along the second rotation axis 102, so that the prism carrier 20 "nods" in the second direction, thereby achieving anti-shaking of the prism carrier 20 in the second direction.

[0076] In some embodiments, the first driving assembly 31 includes a first coil 311 fixed to a first side portion 221 and / or a second side portion 222, and a first magnet portion 312 fixed to a bracket 12. The first coil 311 is located within the magnetic field range of the first magnet portion 312, and the first coil 311 is electrically connected to the flexible circuit board 40. Exemplarily, the first coil 311 and the first magnet portion 312 may be arranged relatively spaced apart in a first direction, and the first coil 311 may be electrically connected to the first flexible portion 41 or the second flexible portion 42 via a first binding wire 3111.

[0077] The second drive assembly 32 includes a second coil 321 fixed to the third side portion 2231 and a second magnet portion 322 fixed to the bracket 12. The second coil 321 is located within the magnetic field range of the second magnet portion 322, and the second coil 321 is electrically connected to the flexible circuit board 40. Exemplarily, the second coil 321 and the second magnet portion 322 can be arranged at a relative distance in a second direction, and the second coil 321 can be electrically connected to the third flexible portion 43 via a second binding wire 3211.

[0078] In this embodiment, the coil is fixed on the prism carrier and moves with the prism carrier, while the magnet is fixed on the bracket and relatively stationary. The design of a movable coil and a stationary magnet is beneficial to improving the signal-to-noise ratio of the coil, making the movement of the prism carrier more stable, and also helps to further improve the crosstalk problem.

[0079] In some embodiments, a second cover plate 124 is provided on the bracket 12, the second cover plate 124 is disposed opposite to the first coil 311 in a first direction, and the first magnet part 312 is fixed on the second cover plate 124 to be fixed on the bracket 12 by the second cover plate 124.

[0080] In some embodiments, a third cover plate 125 is provided on the bracket 12, the third cover plate 125 is disposed opposite to the second coil 321 in the second direction, and the second magnet part 322 is fixed on the third cover plate 125 so as to be fixed on the bracket 12 by the third cover plate 125.

[0081] In some embodiments, the first side portion 221 and / or the second side portion 222 have at least one first protrusion 224, which is engaged within the first coil 311. For example, Figure 5 and Figure 6 As shown, in the first drive assembly 31, two first coils 311 are provided, each first coil 311 being sleeved on two first protrusions 224 to fix the first coil 311 to the first side portion 221 or the second side portion 222. The third side portion 2231 has at least one second protrusion 225, which is engaged within the second coil 321, exemplarily, as shown... Figure 5 and Figure 6 As shown, in the second drive assembly 32, a second coil 321 is provided, and the second coil 321 is sleeved on two second protrusions 225 to fix the second coil 321 on the third side 2231.

[0082] In this embodiment, by sleeve the coil outside the protrusion and fixing the coil to the prism carrier, the stability of the coil fixation is improved.

[0083] In some implementations, such as Figure 15 As shown, the elastic part 53 extends meanderingly between the first connecting part 51 and the second connecting part 52 to improve the toughness of the elastic part 53, making the elastic part 53 less prone to breakage.

[0084] In some embodiments, the elastic portion 53 includes a first curved elastic arm 531, a second curved elastic arm 532, and a third curved elastic arm 533 connected in sequence. The first curved elastic arm 531 extends from the first connecting portion 51 toward the second connecting portion 52, the second curved elastic arm 532 extends from the end of the first curved elastic arm 531 near the second connecting portion 52 toward the first connecting portion 51, and the third curved elastic arm 533 extends from the end of the second curved elastic arm 532 near the first connecting portion 51 toward the second connecting portion 52.

[0085] In some implementations, such as Figure 4 and Figure 14 As shown, the first connecting part 51 is fixed to the side of the prism carrier 20 facing the base 11, and the second connecting part 52 is fixed to the bracket 12 and the second connecting part 52 is located between the bracket 12 and the base plate 111.

[0086] In this embodiment, the elastic conductive element is located below the prism carrier in the thickness direction of the base plate, i.e. in the focusing direction. This helps to further reduce the volume, achieve miniaturization of the mechanism, and enable the prism carrier to be suspended more stably in the housing.

[0087] In some embodiments, the first connecting portion 51 and the second connecting portion 52 of the elastic conductive member 50 are disposed opposite each other in a first direction or a second direction.

[0088] For example, such as Figure 13As shown, the first connecting part 51 and the second connecting part 52 are arranged opposite to each other in the first direction. Multiple elastic conductive elements 50 are provided. A first number of elastic conductive elements 50 are respectively arranged between the side of the bracket 12 where the first magnet part 312 is fixed and the side of the prism carrier 20 facing the base 11. In addition, a first number of elastic conductive elements 50 are respectively arranged between the side of the bracket 12 where the second magnet part 322 is fixed and the side of the prism carrier 20 facing the base 11.

[0089] In some embodiments, the first connecting portion 51 is fixed to the edge of the receiving groove 21. For example, as shown... Figure 13 As shown, a first number of elastic conductive elements 50 are respectively disposed on the side of the bracket 12 where the first magnet 312 is fixed and on the edge of the receiving groove 21 near the first side portion 221. Additionally, a first number of elastic conductive elements 50 are respectively disposed on the side of the bracket 12 where the second magnet 322 is fixed and on the edge of the receiving groove 21 near the second side portion 222. For example, the first number can be a natural number greater than or equal to 2; for instance, the first number can be 2.

[0090] In some embodiments, the bracket 12 is provided with an output structure 121 on the side facing the base plate 111, and the elastic conductive member 50 also includes a third connecting part 54 connected to the second connecting part 52. The free end of the third connecting part 54 is located in the output structure 121, and the third connecting part 54 can be fixed on the side of the bracket 12 facing the base plate 111.

[0091] The third connecting part 54 can be used to electrically connect with an external circuit so as to electrically connect the flexible circuit board 40 and the external circuit through the elastic conductive member 50.

[0092] In some embodiments, multiple elastic conductive elements 50 are provided, and the output structure 121 includes multiple communicating grooves 1211 communicating with the outside, with each of the multiple communicating grooves 1211 corresponding to one of the multiple elastic conductive elements 50. Specifically, the free ends of multiple third connecting portions 54 are respectively accommodated in the multiple communicating grooves 1211.

[0093] In some embodiments, the flexible circuit board 40 further includes a fourth flexible portion 44 attached to the side of the prism carrier 20 facing the base 11, the fourth flexible portion 44 and the first connecting portion 51 being electrically connected by metal solder.

[0094] The fourth flexible part 44 and the first connecting part 51 are respectively fixed to the side of the prism carrier 20 facing the base 11, that is, respectively fixed to the bottom of the prism carrier 20. The fourth flexible part 44 and the first connecting part 51 are close to each other in space. For example, please refer to Figure 11 and Figure 12As shown, the prism carrier 20 has a third protrusion 226 on the side facing the base 11, and the first connecting part 51 is fixed on the third protrusion 226. In the thickness direction of the base plate 111, that is, in the focusing direction, the prism carrier 20, the fourth flexible part 44 and the first connecting part 51 are arranged in sequence on the side facing the base 11. The projections of the fourth flexible part 44 and the first connecting part 51 on the base plate 111 along the focusing direction overlap, which facilitates electrical connection by metal solder.

[0095] For example, such as Figure 3 and Figure 12 As shown, in the focusing direction, a gap may exist between the fourth flexible portion 44 and the first connecting portion 51, and a metal solder may be located between the gap between the fourth flexible portion 44 and the first connecting portion 51 to connect the two. The metal solder may be, for example, tin.

[0096] Those skilled in the art should understand that in other embodiments, the first connecting portion 51 may also be at least partially attached to the fourth flexible portion 44, and then an electrical connection may be achieved by metal solder.

[0097] In some embodiments, the prism carrier 20 is provided with at least one counterweight (not shown). The arrangement of the counterweight can make the weight distribution of the prism carrier 20 more reasonable and reduce the posture difference in various directions.

[0098] One embodiment of this application provides a prism device 200. Please refer to [link / reference]. Figure 17 As shown, it includes the aforementioned prism stabilization mechanism 100 and a prism assembly 20a fixed on the prism carrier 20.

[0099] For details regarding the prism device 200 in this embodiment, please refer to the description of the previous embodiment. Figures 1 to 16 These will not be elaborated upon here.

[0100] One embodiment of this application provides a periscope lens module 300. Please refer to [link / reference]. Figure 18 As shown, the periscope lens module 300 includes the aforementioned prism device 200.

[0101] In some embodiments, the periscope lens module 300 further includes an image sensor 301 and a lens group 302 disposed between the prism device 200 and the image sensor 301.

[0102] One embodiment of this application provides an electronic device, including the prism stabilization mechanism 100, the prism device 200, or the periscope lens module 300 described above.

[0103] For example, the electronic device can be a mobile communication terminal, such as a mobile phone, tablet, or smart wearable device.

[0104] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A prism image stabilization mechanism, characterized in that, include: A shell with containment space; A prism carrier located within the containment space, the prism carrier being rotatably disposed on the housing, the prism carrier being used to fix a prism assembly, the prism carrier including a first side and a second side disposed opposite to each other in a first direction, and a carrier portion connecting the first side and the second side, the carrier portion having a third side, the third side being perpendicular to the first side and the third side being perpendicular to a second direction, the second direction being perpendicular to the first direction; A drive unit located within the containment space, the drive unit being used to drive the prism carrier to rotate; A flexible circuit board located within the containment space is disposed on the prism carrier and electrically connected to the drive unit. The flexible circuit board includes a first flexible portion and a second flexible portion disposed opposite to each other, and a third flexible portion connected between the first flexible portion and the second flexible portion. The first flexible portion is attached to the first side portion, the second flexible portion is attached to the second side portion, and the third flexible portion is attached to the third side portion. In addition, an elastic conductive element located within the containment space, the elastic conductive element comprising a first connecting portion fixed to the prism carrier, a second connecting portion fixed to the housing, and an elastic portion disposed between the first connecting portion and the second connecting portion, the elastic conductive element being used to electrically connect the flexible circuit board to an external circuit.

2. The prism stabilization mechanism according to claim 1, characterized in that, The housing includes a base and a bracket fixed to the base and forming the receiving space with the base, and the prism carrier is rotatably mounted on the base.

3. The prism stabilization mechanism according to claim 2, characterized in that, The base includes a base plate and a support column disposed on the base plate, wherein the end of the support column away from the base plate has a first groove; The prism carrier has a receiving groove on the side facing the base, the bottom wall of the receiving groove has a second groove, and the support column extends into the receiving groove; The prism anti-shake mechanism also includes a ball bearing, which is sandwiched between the first groove and the second groove.

4. The prism stabilization mechanism according to claim 3, characterized in that, The ball bearing is fixedly connected to the inner wall of the second groove.

5. The prism stabilization mechanism according to claim 4, characterized in that, The first groove includes a plurality of outwardly inclined first plastic ramps, which intersect at a first common point. The ball contacts any of the first plastic ramps and slides in contact with the base.

6. The prism stabilization mechanism according to claim 3, characterized in that, The ball bearing is fixedly connected to the inner wall of the first groove.

7. The prism stabilization mechanism according to claim 6, characterized in that, The second groove includes a plurality of outwardly inclined second plastic ramps, which intersect at a second common point. The ball contacts any one of the second plastic ramps and slides in contact with the prism carrier.

8. The prism stabilization mechanism according to claim 2, characterized in that, The driving component includes a first driving assembly and a second driving assembly, wherein the first driving assembly is fixed to the first side and / or the second side, and the second driving assembly is fixed to the third side.

9. The prism stabilization mechanism according to claim 8, characterized in that, The first driving component includes a first coil fixed to the first flexible part and / or the second flexible part and a first magnet fixed to the bracket. The first coil and the corresponding first magnet are arranged at a distance from each other in the first direction. The first coil is located within the magnetic field range of the first magnet and is electrically connected to the flexible circuit board. The second driving component includes a second coil fixed to the third flexible part and a second magnet fixed to the bracket. The second coil and the second magnet are arranged at a distance from each other in the second direction, and the second coil is located within the magnetic field range of the second magnet. The second coil is electrically connected to the flexible circuit board.

10. The prism stabilization mechanism according to claim 9, characterized in that, The first side portion and / or the second side portion have at least one first protrusion, which is engaged within the first coil; the third side portion has at least one second protrusion, which is engaged within the second coil.

11. The prism stabilization mechanism according to claim 3, characterized in that, The first connecting portion and the second connecting portion are parallel to the base plate, and in the thickness direction of the base plate, the side of the first connecting portion facing the base plate is higher than the side of the second connecting portion facing away from the base plate.

12. The prism stabilization mechanism according to claim 3, characterized in that, The first connecting part is fixed to the side of the prism carrier facing the base, and the second connecting part is fixed to the bracket and is located between the bracket and the base plate.

13. The prism stabilization mechanism according to claim 12, characterized in that, The first connecting portion and the second connecting portion of the elastic conductive element are arranged opposite to each other in a first direction or a second direction.

14. The prism stabilization mechanism according to claim 13, characterized in that, The flexible circuit board also includes a fourth flexible portion attached to the side of the prism carrier facing the base; The prism carrier has a receiving groove in the middle of the side facing the base. The fourth flexible part and the first connecting part are respectively fixed at the edge of the receiving groove. In the thickness direction of the base plate, the side of the prism carrier facing the base, the fourth flexible part and the first connecting part are arranged in sequence. The projection of the fourth flexible part on the prism carrier overlaps with the projection of the first connecting part on the prism carrier. The fourth flexible part and the first connecting part are electrically connected by metal solder.

15. The prism stabilization mechanism according to claim 12, characterized in that, The bracket has an output structure on the side facing the base plate, and the elastic conductive element also includes a third connecting part connected to the second connecting part, with the free end of the third connecting part located within the output structure.

16. The prism stabilization mechanism according to claim 15, characterized in that, The elastic conductive element is provided in multiple ways, and the output structure includes multiple connecting slots that communicate with the outside. Each of the multiple connecting slots corresponds to one of the multiple elastic conductive elements.

17. The prism stabilization mechanism according to claim 1, characterized in that, The elastic portion extends meanderingly between the first connecting portion and the second connecting portion.

18. The prism stabilization mechanism according to claim 17, characterized in that, The elastic portion includes a first curved elastic arm extending from the first connecting portion toward the second connecting portion, a second curved elastic arm extending from one end of the first curved elastic arm near the second connecting portion toward the first connecting portion, and a third curved elastic arm extending from one end of the second curved elastic arm near the first connecting portion toward the second connecting portion.

19. The prism stabilization mechanism according to claim 1, characterized in that, The prism carrier is provided with at least one counterweight.

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