Periscopic anti-shake driving device

Abstract

The utility model belongs to the technical field of optical image equipment, and particularly relates to a periscopic anti-shake driving device which comprises a base, a prism carrier and a prism driving mechanism, and the prism driving mechanism is provided with a nodding driving mechanism and a head shaking driving mechanism. The prism carrier comprises a support and a carrier, a nodding shaft is arranged between the support and the carrier, and the nodding driving mechanism drives the carrier to rotate around the nodding shaft on the support; an oscillating shaft is arranged between the rear side of the support and the inner rear side of the base, and the oscillating driving mechanism drives the support and the carrier to rotate around the oscillating shaft in the base. Due to the design of the head shaking shaft and the nodding shaft, the support and the carrier have a fulcrum function when rotating, the resistance of the support and the carrier during head shaking and nodding is reduced, and the rotating action of the prism is smoother.

Description

Technical Field

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

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

[0003] Lens drive devices are used in lightweight designs because they significantly reduce the thickness and weight of the device. The structure of a lens drive device typically consists of two parts: a lens and a prism. The prism is located at the front end, and an imaging chip is located at the rear end of the lens. Light is reflected by the prism, redirecting it to the lens, where it is zoomed and then transferred to the imaging chip.

[0004] Specifically, the prism part can usually nod and shake on the base to change the angle of light. These actions require the prism magnet and the prism coil that matches it to be realized. How to achieve stable nodding and shaking actions of the prism part is a problem that needs to be solved at present. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems and provides a periscope anti-shake driving device.

[0006] A periscope anti-shake driving device includes a base, a prism carrier, and a prism driving mechanism, wherein the prism driving mechanism includes a nodding driving mechanism and a shaking driving mechanism;

[0007] The prism carrier includes a bracket and a carrier, a nodding axis is provided between the bracket and the carrier, the length direction of the nodding axis is a first direction, and the nodding drive mechanism drives the carrier to rotate around the nodding axis on the bracket;

[0008] An oscillating shaft is provided between the rear side of the bracket and the inner rear side of the base. The length direction of the oscillating shaft is a second direction perpendicular to the first direction. The oscillating drive mechanism drives the bracket and the carrier to rotate around the oscillating shaft in the base.

[0009] Optionally, nodding support platforms are provided on both sides of the bracket, a nodding shaft accommodating groove is provided at the bottom end of the carrier, the nodding shaft is provided between the nodding support platform and the nodding accommodating groove, and both ends of the nodding shaft are supported on the two nodding support platforms.

[0010] Optionally, the carrier 30 is provided with nodding support platform avoidance grooves on both sides in the first direction, and the two nodding support platform avoidance grooves are respectively located on both sides of the nodding shaft accommodating groove, and the two nodding support platforms respectively extend into the corresponding nodding support platform avoidance grooves and support the nodding shaft.

[0011] Optionally, the nodding drive mechanism includes a nodding coil arranged at the bottom of the base and a nodding magnet arranged in an end magnet mounting groove at the bottom of the carrier, and the nodding coil and the nodding magnet are arranged opposite to each other.

[0012] Optionally, the nodding shaft accommodating groove is located above the nodding magnet mounting groove.

[0013] Optionally, the nodding coil is powered by a built-in circuit in the base.

[0014] Optionally, the bracket adopts a frame-like structure or an inverted U-shaped structure, the bracket is wrapped around the outside of the carrier, and the two nodding support platforms are arranged on the inner sides of two pairs of side walls of the bracket.

[0015] Optionally, a shaking head support platform is provided on the rear side of the bracket and the inner rear side of the base, and a longitudinal groove is provided on the shaking head support platform along the second direction. The two shaking head support platforms are arranged opposite to each other, and the two longitudinal grooves are opposite to each other and clamp the shaking head axis.

[0016] Optionally, the bottom end of the oscillating shaft abuts against the base, and a limiting protrusion is provided above the top end of the oscillating shaft, and the limiting protrusion is provided on the rear side of the bracket or the inner rear side of the base.

[0017] Optionally, the oscillating drive mechanism includes a oscillating coil arranged on a side wall of the base and a oscillating magnet arranged in a oscillating magnet mounting groove on a side wall of the bracket, and the oscillating coil is arranged opposite to the oscillating magnet.

[0018] Optionally, the shaking drive mechanism includes shaking coils arranged on the side walls of both sides of the base and shaking magnets arranged in the shaking magnet mounting grooves on the side walls of both sides of the bracket, and each shaking coil is arranged opposite to the shaking magnet on the same side.

[0019] Optionally, when there is one shaking head magnet, a shaking head magnet mounting groove is provided on the side wall on one side of the bracket, and a side baffle is provided on the side wall on the other side of the bracket. The side baffle is arranged opposite to the shaking head magnet mounting groove, and the nodding axis is provided between the shaking head magnet and the side baffle.

[0020] Optionally, the oscillating coil is powered by a built-in circuit in the base.

[0021] Optionally, the periscope anti-shake drive device also includes a shell, which is detachably connected to the base and forms a hollow cavity, and the prism carrier, the prism drive mechanism, the nodding axis and the shaking axis are all arranged in the hollow cavity.

[0022] Beneficial effect: The design of the shaking shaft and nodding shaft of the utility model enables the bracket and the carrier to act as a fulcrum when performing a rotational movement, which reduces the resistance of the bracket and the carrier when performing a shaking and nodding movement, making the rotation movement of the prism smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A structural diagram of the utility model;

[0024] Figure 2 for Figure 1 The main view;

[0025] Figure 3 for Figure 2 It is the AA section view;

[0026] Figure 4 for Figure 1 Exploded diagram;

[0027] Figure 5 for Figure 4 Further exploded diagram of

[0028] Figure 6 This is a structural diagram of a prism carrier of the utility model;

[0029] Figure 7 for Figure 6 Partial exploded view;

[0030] Figure 8 for Figure 7 Further exploded diagram of

[0031] Figure 9 for Figure 8 Schematic diagram from another angle;

[0032] Figure 10 This is a structural diagram of the carrier of the utility model. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings to describe the preferred embodiments of the present invention in detail so that the purpose, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0034] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0035] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0036] In the following description, in order to clearly demonstrate the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0037] Reference Figures 1 to 10 An embodiment of the present invention provides a periscope anti-shake driving device, which includes a base 10, a prism carrier and a prism driving mechanism. The prism driving mechanism has a nodding driving mechanism and a shaking driving mechanism.

[0038] The prism carrier is typically disposed within the base 10 and is used to mount the prism. A nodding drive mechanism drives the prism carrier to rotate about a first direction, while a shaking drive mechanism drives the prism carrier to rotate about a second direction perpendicular to the first direction, thereby achieving the optical image stabilization effect of the prism. The prism carrier drives the prism to nod and shake, allowing the prism to redirect the direction of the light passing through it. The prism carrier can move the prism, thereby changing the direction of the light. The nodding action refers to the movement of the prism carrier rotating about the first direction, while the shaking action refers to the movement of the prism carrier rotating about the second direction.

[0039] The prism carrier includes a bracket 20 and a carrier 30. The carrier 30 is arranged on the bracket 20. A nodding axis 40 is arranged between the bracket 20 and the carrier 30. The length direction of the nodding axis 40 is the first direction. The nodding drive mechanism drives the carrier 30 on the bracket 20 with the nodding axis 40 as the fulcrum and can rotate around the nodding axis 40. That is to say, the carrier 30 can nod relative to the bracket 20.

[0040] An oscillating shaft 50 is arranged between the rear side of the bracket 20 and the inner rear side of the base 10. The length direction of the oscillating shaft 50 is a second direction perpendicular to the first direction. The oscillating drive mechanism drives the bracket 20 and the carrier 30 to rotate around the oscillating shaft 50 in the base 10 with the oscillating shaft 50 as the fulcrum. That is to say, the carrier 30 is set on the bracket 20 and oscillates with the bracket 20.

[0041] The present invention realizes a split design of the prism carrier through the bracket 20 and the carrier 30. Through the design of the nodding axis 40 and the shaking axis 50, the bracket 20 and the carrier 30 act as a fulcrum when performing the rotation action, which reduces the resistance of the bracket 20 and the carrier 30 when performing the shaking and nodding actions, making the rotation action of the prism smoother.

[0042] In one embodiment, referring to Figures 7 to 9 A nodding support platform 21 is provided on both sides of the bracket 20, a nodding shaft accommodating groove 31 is provided at the bottom end of the carrier 30, a nodding shaft 40 is provided between the nodding support platform 21 and the nodding accommodating groove, and both ends of the nodding shaft 40 are supported on the two nodding support platforms 21.

[0043] In one embodiment, referring to Figure 10 The carrier 30 is provided with nodding support platform avoidance grooves 32 on both sides in the first direction. The two nodding support platform avoidance grooves 32 are respectively located on both sides of the nodding shaft receiving groove 31. The two nodding support platforms 21 extend into their respective corresponding nodding support platform avoidance grooves 32 and support the nodding shaft 40.

[0044] In one embodiment, a nodding support groove is provided on the top surface of the nodding support platform 21, and the nodding shaft 40 is supported in the nodding support groove. The nodding support groove is preferably one of a V-shaped groove, an arc groove or a plane groove.

[0045] In one embodiment, referring to Figure 5 and Figure 6 The nodding drive mechanism includes a nodding coil 61 and a nodding magnet 62. The nodding coil 61 is disposed at the bottom of the base 10. The nodding magnet 62 is positioned within the nodding magnet mounting slot 33 at the bottom end of the carrier 30. The nodding coil 61 and the nodding magnet 62 are positioned opposite each other. With the cooperation of the nodding coil 61 and the nodding magnet 62, the carrier 30 performs a nodding rotation about the nodding axis 40, ultimately achieving the nodding motion of the prism.

[0046] In one embodiment, referring to Figure 8 The nodding shaft accommodating groove 31 is located above the nodding magnet mounting groove 33 .

[0047] In one embodiment, the nodding coil 61 is powered by a built-in circuit in the base 10 .

[0048] In one embodiment, the bracket 20 adopts a frame-like structure or an inverted U-shaped structure. The bracket 20 is wrapped around the carrier 30 , and the two nodding support platforms 21 are arranged on the inner sides of two pairs of side walls of the bracket 20 .

[0049] Reference Figure 8 and Figure 9 The bracket 20 adopts an inverted U-shaped structure, and the two nodding support platforms 21 are arranged in two pairs of side walls in the first direction.

[0050] The bracket 20 designed as above does not affect the nodding movement of the carrier 30 around the nodding axis 40 , and can also restrict the nodding axis 40 within the bracket 20 to prevent the nodding axis 40 from sliding along the first direction.

[0051] In one embodiment, referring to Figures 5 to 8 A shaking head support platform 22 is provided on the rear side of the bracket 20, and a shaking head support platform 11 is provided on the inner rear side of the base 10. Longitudinal grooves are provided on the shaking head support platform 11 and the shaking head support platform 22 along the second direction. The shaking head support platform 11 and the shaking head support platform 22 are arranged opposite to each other, and the longitudinal grooves of the shaking head support platform 11 and the longitudinal grooves of the shaking head support platform 22 are opposite to each other and clamp the shaking head shaft 50.

[0052] The longitudinal groove is preferably one of a V-shaped groove, an arc groove or a plane groove.

[0053] In one embodiment, the bottom end of the oscillating shaft 50 abuts against the base 10 , and a limiting protrusion 51 is provided above the top end of the oscillating shaft 50 . The limiting protrusion 51 is provided on the rear side of the bracket 20 or the inner rear side of the base 10 .

[0054] Reference Figures 6 to 8 The limiting protrusion 51 is set on the rear side of the bracket 20.

[0055] The limiting protrusion 51 in this embodiment is used to prevent the oscillating shaft from moving in the second direction (such as Figure 6 and Figure 7 longitudinal sliding phenomenon in the

[0056] In one embodiment, referring to Figures 5 to 9 The shaking drive mechanism includes a shaking coil 63 and a shaking magnet 64. The shaking coil 63 is arranged on the side wall of one side of the base 10. The shaking magnet 64 is arranged in the shaking magnet mounting groove 23 on the side wall of one side of the bracket 20. The shaking coil 63 and the shaking magnet 64 are arranged opposite to each other. Under the cooperation of the shaking coil 63 and the shaking magnet 64, the bracket 20 performs a shaking rotation action with the shaking shaft 50 as the fulcrum, so that the bracket 20 drives the carrier 30 to perform a shaking action, and finally realizes the shaking action of the prism.

[0057] In one embodiment, referring to Figure 8 and Figure 9When there is one shaking head magnet 64, a shaking head magnet mounting groove 23 is provided on the side wall of one side of the bracket 20, and a side baffle 24 is provided on the side wall of the other side of the bracket 20. The side baffle 24 is arranged opposite to the shaking head magnet mounting groove 23, and a nodding axis 40 is provided between the shaking head magnet 64 and the side baffle 24.

[0058] Of course, when the bracket 20 adopts a frame-like structure or an inverted U-shaped structure, the shaking magnet installation groove 23 can be set on one of the side walls with two opposite side walls, and the side wall opposite to the shaking magnet installation groove 23 is the side baffle 24.

[0059] In one embodiment, the oscillating drive mechanism includes two oscillating coils 63 and two oscillating magnets 64. The two oscillating coils 63 are respectively disposed on the side walls of the base 10, and the two oscillating magnets 64 are respectively disposed on the side walls of the bracket 20. Each oscillating coil 63 is disposed opposite the oscillating magnet 64 on the same side.

[0060] By designing two sets of oscillating coils and oscillating magnets, the oscillating driving force can be increased compared to one set.

[0061] In one embodiment, the oscillating coil 63 is powered by a built-in circuit in the base 10 .

[0062] In one embodiment, the periscope anti-shake drive device also includes a shell 70, which is detachably connected to the base 10 and forms a hollow cavity, and the prism carrier, prism drive mechanism, nodding axis 40 and shaking axis 50 are all arranged in the hollow cavity.

[0063] A light entrance may be provided on the housing 70 , and the light entrance is arranged relative to the prism on the prism carrier.

[0064] While the preferred embodiments of the present invention have been described in detail above, it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. Such equivalent forms also fall within the scope of the claims appended hereto.

Claims

1. A periscope anti-shake drive device, comprising a base, a prism carrier, and a prism drive mechanism, wherein the prism drive mechanism comprises a nodding drive mechanism and a shaking drive mechanism; It is characterized in that The prism carrier includes a bracket and a carrier, a nodding axis is provided between the bracket and the carrier, the length direction of the nodding axis is a first direction, and the nodding drive mechanism drives the carrier to rotate around the nodding axis on the bracket; An oscillating shaft is provided between the rear side of the bracket and the inner rear side of the base. The length direction of the oscillating shaft is a second direction perpendicular to the first direction. The oscillating drive mechanism drives the bracket and the carrier to rotate around the oscillating shaft in the base.

2. The periscope anti-shake driving device according to claim 1, characterized in that: The periscope anti-shake driving device also includes a shell, which is detachably connected to the base and forms a hollow cavity. The prism carrier, the prism driving mechanism, the nodding axis and the shaking axis are all arranged in the hollow cavity.

3. The periscope anti-shake driving device according to claim 1, wherein: Nodding support platforms are provided on both sides of the bracket, a nodding shaft receiving groove is provided at the bottom end of the carrier, the nodding shaft is provided between the nodding support platform and the nodding shaft receiving groove, and both ends of the nodding shaft are supported on the two nodding support platforms.

4. The periscope anti-shake driving device according to claim 3, wherein: The carrier is provided with nodding support platform avoidance grooves on both sides in the first direction, and the two nodding support platform avoidance grooves are respectively located on both sides of the nodding shaft accommodating groove, and the two nodding support platforms are respectively extended into the corresponding nodding support platform avoidance grooves and support the nodding shaft.

5. The periscope anti-shake driving device according to claim 3, wherein: The nodding drive mechanism includes a nodding coil arranged at the bottom of the base and a nodding magnet arranged in the end nodding magnet mounting groove at the bottom of the carrier, and the nodding coil and the nodding magnet are arranged opposite to each other.

6. The periscope anti-shake driving device according to claim 5, characterized in that: The nodding shaft receiving groove is located above the nodding magnet installation groove; and / or, the nodding coil is powered by a base built-in circuit in the base; And / or, the bracket adopts a frame-like structure or an inverted U-shaped structure, the bracket is wrapped around the outside of the carrier, and the two nodding support platforms are arranged on the inner sides of two opposite side walls of the bracket.

7. The periscope anti-shake driving device according to any one of claims 1 to 6, characterized in that: A shaking head support platform is provided on the rear side of the bracket and the inner rear side of the base. A longitudinal groove is provided on the shaking head support platform along the second direction. The two shaking head support platforms are arranged opposite to each other, and the two longitudinal grooves are opposite to each other and clamp the shaking head axis.

8. The periscope anti-shake driving device according to claim 7, wherein: The bottom end of the oscillating shaft is in contact with the base, and a limiting protrusion is provided above the top end of the oscillating shaft. The limiting protrusion is provided at the rear side of the bracket or the inner rear side of the base.

9. The periscope anti-shake driving device according to any one of claims 1 to 6, characterized in that: The oscillating drive mechanism includes an oscillating coil provided on a side wall of the base and an oscillating magnet provided in an oscillating magnet mounting groove on a side wall of the bracket, wherein the oscillating coil and the oscillating magnet are provided opposite to each other; Alternatively, the shaking drive mechanism includes shaking coils arranged on the side walls of both sides of the base and shaking magnets arranged in the shaking magnet mounting grooves on the side walls of both sides of the bracket, and each shaking coil is arranged relative to the shaking magnet on the same side.

10. The periscope anti-shake driving device according to claim 9, wherein: When there is one shaking head magnet, a shaking head magnet mounting groove is provided on one side wall of the bracket, and a side baffle is provided on the other side wall of the bracket. The side baffle is arranged opposite to the shaking head magnet mounting groove, and the nodding axis is provided between the shaking head magnet and the side baffle; And / or, the oscillating coil is powered by a built-in circuit in the base.

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