A periscope camera driving device

Abstract

The purpose of the utility model is to provide a periscope camera drive device, which includes a prism part and a lens part. The prism part includes a prism protective shell and a prism base, a prism carrier is provided in the prism cavity, and a connecting component is embedded between the prism carrier and the prism base. The lens part includes a lens protective shell and a lens base, a lens carrier is provided in the lens cavity, and a guide structure is provided between the lens carrier and the lens base. The utility model relates to the technical field of electronic equipment, and the guide structure provided between the lens carrier and the lens base, through the mutual contact of the first directional member and the second directional member, makes the lens carrier and the lens base contact each other and slide friction, replacing the structures such as ball bearings and reeds in the prior art. The guide structure has a simple assembly process and saves costs. It can be used as a limit and support structure, and its size is more stable and controllable, which reduces the superposition tolerance of the motor and realizes the stable actuation of the lens carrier.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a periscope camera driving device. Background Art

[0002] In recent years, with the development of camera lens technology and the rise of electronic products with imaging functions, 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 a periscope lens driving device that completes the corresponding function.

[0003] At present, most common technical means are to use lens focusing + prism anti-shake. Focusing is a linear motion, and anti-shake is a rotational motion. Both linear and anti-shake motion require a guide structure for support and guidance. The guide structure is mostly a ball-type structure. In order to ensure the moving space of the mover, additional parts are added to achieve normal motor movement. Other structures are required as limit structures. The ball-type structure has high requirements on the precision of the raw materials and the assembly process is complicated. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a periscope camera drive device, which solves the problems of high precision requirements for the existing guide structure and complex assembly process.

[0005] To achieve the above object, the utility model is implemented through the following technical solutions: a periscope camera driving device, the device includes a prism part and a lens part;

[0006] The prism part includes a prism protective shell and a prism base, which are buckled together to form a prism cavity; a prism carrier is arranged in the prism cavity, and an optical prism is arranged on the prism carrier; a spring is fixed between the prism carrier and the prism base, and a connecting component is embedded between the prism carrier and the prism base;

[0007] The lens portion includes a lens protective shell and a lens base, which are buckled together to form a lens cavity; a lens carrier is arranged in the lens cavity, and an optical lens is arranged on the lens carrier; a guide structure is arranged between the lens carrier and the lens base, and the guide structure includes:

[0008] A first orientation member formed on the lens carrier or lens base; and

[0009] The second orientation member is formed on the lens base or the lens carrier; the first orientation member and the second orientation member contact each other, so that the lens carrier slides and rubs on the lens base.

[0010] Preferably, the first directing member includes a guide boss, which is formed on the lens carrier; the second directing member includes a guide baffle, which is formed on the lens base; the guide boss and the guide baffle are in contact with each other and slide frictionally.

[0011] Preferably, the guide boss is arranged at the bottom of the lens carrier; the guide baffle is injection-molded on the lens base;

[0012] The guide structure also includes a guide protrusion, which is arranged on the lens base and contacts and supports the guide blocking piece.

[0013] Preferably, the first directing member includes a guide boss, which is formed on the lens base, and a semicircular arc protrusion is formed on the guide boss; the second directing member includes a guide groove, which is formed on the lens carrier; the semicircular arc protrusion contacts and slides with the inner wall surface of the guide groove.

[0014] Preferably, the lens unit further includes a lens unit driving assembly, and the lens unit driving assembly includes:

[0015] a third driving magnet, wherein the third driving magnet is disposed on the lens carrier;

[0016] The second circuit board is fixed on the lens base. The second circuit board is provided with a third driving coil. The third driving coil is arranged opposite to the third driving magnet.

[0017] Preferably, the lens unit further comprises a lens unit closed-loop control component, and the lens unit closed-loop control component comprises:

[0018] A third sensor is disposed on the second circuit board and electrically connected to the second circuit board;

[0019] The induction magnet is arranged at the bottom of the lens carrier and is arranged corresponding to the third sensor.

[0020] Preferably, the connecting component includes a first connecting member, a second connecting member and a third connecting member which are arranged in sequence, and the first connecting member, the second connecting member and the third connecting member are respectively provided with a first pre-stressing magnet, a second pre-stressing magnet and a third pre-stressing magnet; a first guide structure is provided between the first connecting member and the second connecting member, and a second guide structure is provided between the second connecting member and the third connecting member; the first pre-stressing magnet and the second pre-stressing magnet attract each other to provide pre-stressing for the first guide structure, and the second pre-stressing magnet and the third pre-stressing magnet attract each other to provide pre-stressing for the second guide structure.

[0021] Preferably, the first guide structure comprises a first guide member, the first guide member is injection molded on the first connecting member or the second connecting member; a first protrusion is formed on the outer wall surface of the first guide member, a second groove is formed on the first connecting member or the second connecting member, and the first protrusion is arranged in the second groove;

[0022] The second guide structure includes a second guide member, which is injection molded on the second connecting member or the third connecting member; a second protrusion is formed on the outer wall surface of the second guide member, and a first groove is formed on the second connecting member or the third connecting member, and the second protrusion is arranged in the first groove.

[0023] Preferably, the prism portion further includes a prism portion driving assembly, and the prism portion driving assembly includes:

[0024] A first driving magnet and a second driving magnet, wherein the first driving magnet is disposed on both sides of the prism carrier, and the second driving magnet is disposed at the bottom of the prism carrier;

[0025] A first circuit board, wherein first drive coils are arranged on both sides of the first circuit board, and a second drive coil is arranged on the bottom of the first circuit board;

[0026] The first driving magnet is arranged corresponding to the first driving coil; the second driving magnet is arranged corresponding to the second driving coil.

[0027] Preferably, the prism portion further comprises a prism portion closed-loop control component, and the prism portion closed-loop control component comprises:

[0028] a first sensor, disposed on a side of the first circuit board, for sensing a change in the magnetic field of the first driving magnet;

[0029] The second sensor is arranged on the bottom surface of the first circuit board and is used for sensing the change of the magnetic field of the second driving magnet. Beneficial Effects

[0030] By using the periscope camera driving device provided by the utility model, the guide structure is arranged between the lens carrier and the lens base, and the first directional member and the second directional member contact each other, so that the lens carrier and the lens base contact each other and slide and rub, replacing the structures such as the ball bearing and the spring in the prior art. The guide structure has a simple assembly process, saves costs, can be used as a limit and support structure, has a more stable and controllable size, reduces the stacking tolerance of the motor, and realizes the stable actuation of the lens carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of the camera drive device of the utility model;

[0032] Figure 2 It is a schematic diagram of the exploded structure of the prism part and the lens part of the camera driving device of the utility model;

[0033] Figure 3 It is a schematic diagram of the positions of the first driving magnet and the second driving magnet of the utility model installed on the prism carrier;

[0034] Figure 4 This is a schematic structural diagram of a first implementation mode of the first guide member and the second guide member of the utility model;

[0035] Figure 5 This is a schematic structural diagram of a second implementation mode of the first guide member and the second guide member of the utility model;

[0036] Figure 6 It is a schematic diagram of the connection structure of the prism closed-loop control component and the first drive coil, the second drive coil and the first circuit board of the utility model;

[0037] Figure 7 This is a schematic diagram of the explosion structure of the lens portion of the utility model;

[0038] Figure 8 This is a schematic diagram of the connection structure between the second circuit board and the lens base of the utility model;

[0039] Fig. 9 This is a schematic diagram of the lens carrier structure of the utility model;

[0040] Fig.10 This is a schematic diagram of the relative arrangement of the guide bosses in the first embodiment of the first directional member and the second directional member of the utility model;

[0041] Fig.11 This is a schematic diagram of the structure in which the guide bosses of the first directional member and the second directional member of the utility model are arranged oppositely;

[0042] Fig.12 This is a schematic diagram of the structure of the guide boss and the guide groove of the utility model located on the side wall surface;

[0043] Fig.13 It is a structural schematic diagram of the guide boss and the guide groove of the utility model located on the bottom wall surface.

[0044] Explanation of symbols in the figure

[0045] 1. Prism protective shell, 2. Lens protective shell, 3. Prism base, 4. Lens base, 5. Prism carrier, 6. Lens carrier, 7. Optical prism, 8. Optical lens, 9. Connecting assembly, 90. First connecting member, 91. First pre-compression magnet, 92. First guide member, 93. Second pre-compression magnet, 94. Second connecting member, 95. Third pre-compression magnet, 96. Second guide member, 97. Third connecting member, 98. First protrusion, 99. First groove, 910. Second protrusion, 911. second groove, 10. guide groove, 11. first driving magnet, 12. second driving magnet, 13. spring, 14. first circuit board, 15. first driving coil, 16. first sensor, 17. second driving coil, 18. second sensor, 19. second circuit board, 20. third driving coil, 21. third sensor, 22. guide baffle, 23. guide boss, 24. third driving magnet, 25. induction magnet, 26. guide protrusion, 27. semicircular arc protrusion. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. As long as the effect of the utility model can be exerted, various changes can be made to the implementation scheme.

[0047] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0048] Reference Figure 1-13 A periscope camera drive device according to this embodiment is described.

[0049] The device includes a prism part and a lens part, the lens part is responsible for focusing, and the prism part is responsible for anti-shake. The prism part and the lens part of the device are respectively introduced in detail below.

[0050] In this embodiment, the prism portion includes a prism protective shell 1 and a prism base 3, which are buckled together to form a prism cavity; a prism carrier 5 is provided in the prism cavity, and an optical prism 7 is provided on the prism carrier 5; a spring 13 is fixed between the prism carrier 5 and the prism base 3, and a connecting component 9 is embedded between the prism carrier 5 and the prism base 3;

[0051] The connecting assembly 9 includes a first connecting member 90, a second connecting member 94 and a third connecting member 97 which are arranged in sequence, and a first pre-compression magnet 91, a second pre-compression magnet 93 and a third pre-compression magnet 95 are respectively arranged on the first connecting member 90, the second connecting member 94 and the third connecting member 97;

[0052] A first guide structure is arranged between the first connecting member 90 and the second connecting member 94, and a second guide structure is arranged between the second connecting member 94 and the third connecting member 97; the first pre-stressing magnet 91 and the second pre-stressing magnet 93 attract each other to provide pre-stress for the first guide structure, and the second pre-stressing magnet 93 and the third pre-stressing magnet 95 attract each other to provide pre-stress for the second guide structure.

[0053] In this embodiment, the first guide structure includes a first guide member 92, which is injection molded on the first connecting member 90 or the second connecting member 94; a first protrusion 98 is formed on the outer wall of the first guide member 92, a second groove 911 is formed on the first connecting member 90 or the second connecting member 94, and the first protrusion 98 is disposed in the second groove 911. The second guide structure includes a second guide member 96, which is injection molded on the second connecting member 94 or the third connecting member 97; a second protrusion 910 is formed on the outer wall of the second guide member 96, a first groove 99 is formed on the second connecting member 94 or the third connecting member 97, and the second protrusion 910 is disposed in the first groove 99.

[0054] It should be noted that the first guide member 92 and the second guide member 96 have two implementation modes, namely: when the first guide member 92 is injection molded on the first connecting member 90, the second groove 911 is formed on the second connecting member 94. When the first guide member 92 is injection molded on the second connecting member 94, the second groove 911 is formed on the first connecting member 90. When the second guide member 96 is injection molded on the second connecting member 94, the first groove 99 is formed on the third connecting member 97. When the second guide member 96 is injection molded on the third connecting member 97, the first groove 99 is formed on the second connecting member 94.

[0055] The prism part also includes a prism part driving assembly, which includes a first driving magnet 11, a second driving magnet 12 and a first circuit board 14. The first driving magnet 11 is arranged on both sides of the prism carrier 5, and grooves are arranged on both sides of the prism carrier 5, and the first driving magnet 11 is arranged in the grooves. The second driving magnet 12 is arranged at the bottom of the prism carrier 5; the first driving coil 15 is arranged on both sides of the first circuit board 14, and the second driving coil 17 is arranged at the bottom of the first circuit board 14.

[0056] In this embodiment, the first driving magnet 11 is disposed corresponding to the first driving coil 15 ; and the second driving magnet 12 is disposed corresponding to the second driving coil 17 .

[0057] The prism part also includes a prism part closed-loop control component, which includes a first sensor 16 and a second sensor 18. The first sensor 16 is arranged on the side of the first circuit board 14, and is used to sense the magnetic field change of the first driving magnet 11; the second sensor 18 is arranged on the bottom surface of the first circuit board 14, and is used to sense the magnetic field change of the second driving magnet 12.

[0058] The first drive coil 15 , the second drive coil 17 , the first sensor 16 , and the second sensor 18 are all disposed on the first circuit board 14 . The first sensor 16 is located inside the first drive coil 15 , and the second sensor 18 is located inside the second drive coil 17 .

[0059] In this embodiment, the lens portion includes a lens protective shell 2 and a lens base 4, which are buckled together to form a lens cavity; a lens carrier 6 is provided in the lens cavity, and an optical lens 8 is provided on the lens carrier 6.

[0060] An anti-collision block is arranged between the lens carrier 6 and the lens base 4 . The anti-collision block can be arranged on the lens carrier 6 or on the lens base 4 .

[0061] A guide structure is provided between the lens carrier 6 and the lens base 4, and the guide structure includes a first guide member and a second guide member. The first guide member is formed on the lens carrier 6 or the lens base 4; the second guide member is formed on the lens base 4 or the lens carrier 6; the first guide member and the second guide member contact each other, so that the lens carrier 6 slides and rubs on the lens base 4 to complete the guide function. In this embodiment, the first guide member and the second guide member have two embodiments, which are described in detail below.

[0062] In the first embodiment, the first orientation member includes a guide boss 23 formed on the lens carrier 6; the second orientation member includes a guide baffle 22 formed on the lens base 4; the guide boss 23 and the guide baffle 22 contact each other and slide frictionally.

[0063] The guide boss 23 is arranged at the bottom of the lens carrier 6 ; the guide baffle 22 is injection molded on the lens base 4 ; the guide structure further includes a guide protrusion 26 , which is arranged on the lens base 4 and contacts and supports the guide baffle 22 .

[0064] Furthermore, one side of the guide bosses 23 on both sides is arranged relative to or opposite to each other. Correspondingly, the guide baffles 22 are also arranged relative to or opposite to each other to cooperate with the guide bosses 23 on both sides.

[0065] In another embodiment, the first guiding member includes a guide boss 23, which is formed on the lens base 4, and a semicircular arc protrusion 27 is formed on the guide boss 23; the second guiding member includes a guide groove 10, which is formed on the lens carrier 6; the semicircular arc protrusion 27 contacts and slides with the inner wall surface of the guide groove 10 to achieve a guiding function.

[0066] Furthermore, the guide boss 23 is disposed on the side wall surface or the bottom wall surface of the lens base 4 ; correspondingly, the guide groove 10 is disposed on the side wall surface or the bottom wall surface of the lens carrier 6 .

[0067] The lens unit also includes a lens unit driving assembly, which includes a third driving magnet 24 and a second circuit board 19. The third driving magnet 24 is arranged on the lens carrier 6; the second circuit board 19 is fixed on the lens base 4, and a third driving coil 20 is arranged on the second circuit board 19, and the third driving coil 20 is electrically connected to the second circuit board 19; the third driving coil 20 and the third driving magnet 24 are arranged opposite to each other.

[0068] The lens unit also includes a lens unit closed-loop control assembly, which includes a third sensor 21 and an inductive magnet 25. The third sensor 21 is disposed on the second circuit board 19 and is electrically connected to the second circuit board 19; the inductive magnet 25 is disposed at the bottom of the lens carrier 6 and is disposed corresponding to the third sensor 21, for closed-loop control of the lens carrier.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A periscope camera driving device, comprising a prism portion and a lens portion, characterized in that: The prism portion comprises a prism protective shell (1) and a prism base (3), which are interlocked to form a prism cavity; a prism carrier (5) is provided in the prism cavity, and an optical prism (7) is provided on the prism carrier (5); a spring sheet (13) is fixed between the prism carrier (5) and the prism base (3), and a connecting component (9) is embedded between the prism carrier (5) and the prism base (3); The lens portion comprises a lens protective shell (2) and a lens base (4), which are interlocked to form a lens cavity; a lens carrier (6) is provided in the lens cavity, and an optical lens (8) is provided on the lens carrier (6); a guide structure is provided between the lens carrier (6) and the lens base (4), and the guide structure comprises: A first orientation member formed on the lens carrier (6) or the lens base (4); and The second orientation piece is formed on the lens base (4) or the lens carrier (6); the first orientation piece and the second orientation piece are in contact with each other, so that the lens carrier (6) slides and rubs on the lens base (4).

2. A periscope camera driving device according to claim 1, characterized in that: The first orientation member comprises a guide boss (23), wherein the guide boss (23) is formed on the lens carrier (6); the second orientation member comprises a guide baffle (22), wherein the guide baffle (22) is formed on the lens base (4); the guide boss (23) and the guide baffle (22) are in contact with each other and are in sliding friction with each other.

3. A periscope camera driving device according to claim 2, characterized in that: The guide boss (23) is arranged at the bottom of the lens carrier (6); the guide baffle (22) is injection-molded on the lens base (4); The guide structure also includes a guide protrusion (26), the guide protrusion (26) being arranged on the lens base (4), and the guide protrusion (26) being in contact with and supporting the guide baffle (22).

4. The periscope camera driving device according to claim 1, characterized in that: The first orientation member comprises a guide boss (23), the guide boss (23) being formed on the lens base (4), and a semicircular arc protrusion (27) being formed on the guide boss (23); the second orientation member comprises a guide groove (10), the guide groove (10) being formed on the lens carrier (6); the semicircular arc protrusion (27) and the inner wall surface of the guide groove (10) are in contact with each other and are in sliding friction with each other.

5. The periscope camera driving device according to claim 1, characterized in that: The lens unit further includes a lens unit driving assembly, and the lens unit driving assembly includes: a third driving magnet (24), the third driving magnet (24) being arranged on the lens carrier (6); The second circuit board (19) is fixed on the lens base (4); a third driving coil (20) is arranged on the second circuit board (19); the third driving coil (20) and the third driving magnet (24) are arranged opposite to each other.

6. The periscope camera driving device according to claim 1, characterized in that: The lens unit further comprises a lens unit closed-loop control component, and the lens unit closed-loop control component comprises: a third sensor (21), disposed on the second circuit board (19) and electrically connected to the second circuit board (19); The inductive magnet (25) is arranged at the bottom of the lens carrier (6) and is arranged corresponding to the third sensor (21).

7. The periscope camera driving device according to claim 1, characterized in that: The connecting assembly (9) comprises a first connecting member (90), a second connecting member (94) and a third connecting member (97) which are arranged in sequence, and a first pre-stressing magnet (91), a second pre-stressing magnet (93) and a third pre-stressing magnet (95) are respectively arranged on the first connecting member (90), the second connecting member (94) and the third connecting member (97); a first guiding structure is arranged between the first connecting member (90) and the second connecting member (94), and a second guiding structure is arranged between the second connecting member (94) and the third connecting member (97); the first pre-stressing magnet (91) and the second pre-stressing magnet (93) attract each other to provide a pre-stressing force for the first guiding structure, and the second pre-stressing magnet (93) and the third pre-stressing magnet (95) attract each other to provide a pre-stressing force for the second guiding structure.

8. The periscope camera driving device according to claim 7, characterized in that: The first guide structure comprises a first guide member (92), the first guide member (92) being injection-molded on the first connecting member (90) or the second connecting member (94); a first protrusion (98) is formed on an outer wall surface of the first guide member (92), a second groove (911) is formed on the first connecting member (90) or the second connecting member (94), and the first protrusion (98) is arranged in the second groove (911); The second guide structure comprises a second guide member (96), wherein the second guide member (96) is injection molded on the second connecting member (94) or the third connecting member (97); a second protrusion (910) is formed on the outer wall surface of the second guide member (96), a first groove (99) is formed on the second connecting member (94) or the third connecting member (97), and the second protrusion (910) is arranged in the first groove (99).

9. The periscope camera driving device according to claim 1, characterized in that: The prism portion further includes a prism portion driving assembly, and the prism portion driving assembly includes: a first driving magnet (11) and a second driving magnet (12), wherein the first driving magnet (11) is arranged on both sides of the prism carrier (5), and the second driving magnet (12) is arranged at the bottom of the prism carrier (5); A first circuit board (14), wherein first drive coils (15) are arranged on both sides of the first circuit board (14), and a second drive coil (17) is arranged on the bottom of the first circuit board (14); The first driving magnet (11) is arranged corresponding to the first driving coil (15); and the second driving magnet (12) is arranged corresponding to the second driving coil (17).

10. The periscope camera driving device according to claim 9, characterized in that: The prism part further includes a prism part closed-loop control component, and the prism part closed-loop control component includes: A first sensor (16), arranged on a side surface of the first circuit board (14), and used for sensing changes in the magnetic field of the first driving magnet (11); The second sensor (18) is arranged on the bottom surface of the first circuit board (14) and is used to sense changes in the magnetic field of the second driving magnet (12).

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