Independent anti-shake module and electronic device

Abstract

The utility model belongs to image equipment technical field discloses an independent anti -shake module, carrier and support movable connection, base and support are connected through anti -shake elastic sheet, one of carrier and support is provided with focusing coil, the other is provided with focusing magnetite, anti -shake elastic sheet has first connecting part, second connecting part, third connecting part, second connecting part is located between first connecting part and third connecting part, first connecting part and second connecting part are connected with base, third connecting part is connected with support, second connecting part and base have gap one between, point damping glue at gap one to make second connecting part and base connect. The utility model discloses with anti -shake elastic sheet can effectively avoid the deformation or fracture of the suspension wire after long -term use and cause the decline of anti -shake ability, is favorable in guaranteeing the anti -shake performance while, improves the life. The utility model discloses still a kind of electronic equipment with the independent anti -shake module of above.

Description

Technical Field

[0001] This utility model belongs to the field of image equipment technology, and in particular relates to an independent image stabilization module and electronic device. Background Technology

[0002] Currently, conventional lenses achieve image stabilization primarily through a suspension wire. This wire connects the lens carrier and the base. When shake occurs, the wire deforms and quickly recovers its shape using its own deformation capability, thus achieving image stabilization. This allows the image to be converted into electronic data in a stable manner, resulting in clear imaging.

[0003] However, after prolonged use, the suspension wire is prone to deformation or breakage under the action of rebound force, resulting in low image stabilization performance and failure to achieve the expected image stabilization capability. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model discloses an independent image stabilization module. Utilizing an image stabilization spring, it effectively prevents the decrease in image stabilization capability caused by deformation or breakage of the suspension wire after prolonged use, thus improving service life while maintaining image stabilization performance. This utility model also discloses an electronic device equipped with the aforementioned independent image stabilization module.

[0005] The specific technical solution of this utility model is as follows:

[0006] An independent image stabilization module includes a base, a carrier, and a support, wherein the carrier and the support are movably connected, and the base and the support are connected by an image stabilization spring.

[0007] A focusing coil is provided between the carrier and the support, and a focusing magnet is provided between the carrier and the support. The focusing coil is energized to drive the carrier to move relative to the support along the optical axis.

[0008] The anti-shake spring has a first connecting part, a second connecting part, and a third connecting part. The second connecting part is located between the first connecting part and the third connecting part. The first connecting part and the second connecting part are connected to the base, and the third connecting part is connected to the bracket.

[0009] There is a gap between the second connecting part and the base, and damping glue is applied at the gap to connect the second connecting part and the base.

[0010] The anti-shake spring in this application connects the base and the support, and the carrier is set on the support. Therefore, when shaking occurs, the support carries the carrier and moves relative to the base. At this time, the anti-shake spring deforms. Utilizing the deformation properties of the anti-shake spring itself, the anti-shake spring drives the support to move during the recovery process, thereby realizing the shaking reset of the carrier relative to the base, thus achieving the anti-shake effect. The anti-shake spring has a second connecting part, which is connected to the base through damping adhesive. During the shaking process, the damping adhesive can cooperate with the anti-shake spring to further provide basic damping force. Through the properties of the damping adhesive itself, it can effectively avoid sudden acceleration during shaking, thereby achieving better anti-shake.

[0011] Preferably, the anti-shake spring is made of bent metal sheet, and the anti-shake spring has a first connecting part, a second connecting part, and a third connecting part. The first connecting part and the second connecting part are connected by a first support arm, and the second connecting part and the third connecting part are connected by a second support arm.

[0012] In the initial state, the first support arm and the second support arm are perpendicular to the stabilization plane, the plane containing the first support arm is perpendicular to the plane containing the second support arm, and the stabilization plane is perpendicular to the optical axis.

[0013] The anti-shake spring has a simple structure and is easy to assemble, which can effectively reduce the assembly volume. While ensuring anti-shake performance, it also has strong structural stability.

[0014] Preferably, at least one of the carrier and the support is provided with a guide groove, the axis of the guide groove is parallel to the optical axis, and a guide element is provided in the guide groove.

[0015] The guide component enables the carrier to focus along a preset direction of movement, thereby ensuring focusing stability.

[0016] Preferably, the guide groove includes a first groove disposed on the carrier and a second groove disposed on the bracket. In the initial state, one of the first groove and the second groove has one contact point with the guide member, and the other has two contact points with the guide member.

[0017] The guide component has three connection points in the guide groove, forming a triangular stable structure, which can well meet the focusing requirements.

[0018] Preferably, the groove having a contact point with the guide includes a smoothly transitioning groove wall 1, groove wall 2, and groove wall 3, wherein the guide is in contact with at least groove wall 2;

[0019] Wherein, there is a gap 2 between the first groove wall and the guide member, and between the third groove wall and the guide member, or the acute angle between the first groove wall and the second groove wall, and the acute angle between the second groove wall and the third groove wall are greater than or equal to 30° and less than 45°.

[0020] The aforementioned gap two and the corresponding angle setting enable the guide groove wall and the guide member to form a non-opposing pressure when the present application is subjected to external force, thereby effectively dispersing the external force and preventing the guide member from being deformed or dislodged due to drops or impacts during actual use.

[0021] Preferably, the carrier has an assembly part one, and the bracket has an assembly part two. The assembly part one and the assembly part two are movably coupled in the optical axis direction so that the carrier and the bracket are positioned and assembled.

[0022] The guide groove includes a groove one and a groove two, the groove one is disposed in the assembly part one, and the groove two is disposed in the assembly part two;

[0023] The bracket also includes a placement section on which the carrier is placed.

[0024] Since most manufacturers currently use semi-automated assembly, human error during production is one of the factors affecting the yield rate of module products. By setting up Assembly Part 1 and Assembly Part 2, it is possible to provide rapid matching conditions for the carrier and bracket based on the prefabricated structure, and effectively reduce the assembly error rate during manual operation.

[0025] Preferably, the carrier and the support in which the focusing coil is disposed are further provided with an attraction element, and there is a magnetic force between the attraction element and the focusing magnet, so that the carrier and the support are in close contact with the guide element.

[0026] The magnetic force generated between the attracting element and the focusing magnet can pre-press the guide element, thereby making the focusing more accurate and the guiding ability more stable.

[0027] Preferably, the base is provided with an assembly hole, and the guide member is inserted into the guide groove from the assembly hole;

[0028] A cover plate is provided on the side of the bracket away from the base, and the cover plate covers the guide groove in the projection plane perpendicular to the optical axis.

[0029] This structure facilitates the installation of guide components, eliminating the need to position and assemble the guide components during the assembly process of the carrier and support, thus significantly improving the assembly efficiency of this application.

[0030] Preferably, one of the base and the bracket is provided with an anti-shake coil, and the other is provided with an anti-shake magnet. The anti-shake coil is energized to drive the bracket to move relative to the base in an anti-shake plane perpendicular to the optical axis.

[0031] Electronic devices, including:

[0032] The independent image stabilization module as described above; and

[0033] The lens is mounted on the carrier.

[0034] Compared with the prior art, the image stabilization spring used in this utility model not only meets the image stabilization function, but also has good strength. It can effectively avoid deformation or breakage of the image stabilization element after a long period of time, which is conducive to improving the service life. Furthermore, this application does not require overcoming the reaction force of the image stabilization spring when focusing, thereby effectively reducing power consumption and enabling more accurate focusing. Attached Figure Description

[0035] Figure 1 This is an exploded view of the independent anti-shake module in an embodiment of this utility model;

[0036] Figure 2 This is a schematic diagram of the anti-shake spring in an embodiment of the present utility model;

[0037] Figure 3 This is a schematic diagram of the carrier and support in an embodiment of the present utility model;

[0038] Figure 4 This is a schematic diagram of the assembly of the anti-shake spring in an embodiment of the present utility model;

[0039] Figure 5 for Figure 4 The front view;

[0040] Figure 6 This is a schematic diagram of the assembly of the guide component in an embodiment of this utility model;

[0041] Figure 7 A cross-sectional view of the independent anti-shake module in an embodiment of this utility model;

[0042] Figure 8 A cross-sectional view of the independent anti-shake module in an embodiment of this utility model;

[0043] Figure 9 A cross-sectional view of the independent anti-shake module in an embodiment of this utility model;

[0044] Figure 10 A schematic diagram showing the removal of the support in an embodiment of this utility model;

[0045] Figure 11 This is a schematic diagram of the guide groove in an embodiment of the present invention.

[0046] In the diagram: 1-Base; 2-Carrier; 3-Bracket; 4-Shake stabilizing spring; 5-Focusing coil; 6-Focusing magnet; 7-First connecting part; 8-Second connecting part; 9-Third connecting part; 10-Gap one; 11-Shake stabilizing coil; 12-Shake stabilizing magnet; 13-First support arm; 14-Second support arm; 15-Mating hole; 16-Mating protrusion; 17-Guide component; 18-Slot one; 19-Slot two; 20-Slot wall one; 21-Slot wall two; 22-Slot wall three; 23-Gap two; 24-Mounting part one; 25-Circuit board; 26-Detection element; 27-Mounting part two; 28-Suction component; 29-Assembly part one; 30-Assembly part two; 31-Placement part; 32-Cover plate; 33-Lens; 34-Housing shell; 35-Clip; 36-Fastener. Detailed Implementation

[0047] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0048] like Figures 1-5 As shown, the independent image stabilization module includes a base 1, a carrier 2, and a support 3. The carrier 2 and the support 3 are movably connected, and the base 1 and the support 3 are connected by an image stabilization spring 4. A focusing coil 5 is provided between one of the carrier 2 and the support 3, and a focusing magnet 6 is provided between the other. The focusing coil 5 is energized to drive the carrier 2 to move relative to the support 3 along the optical axis. The image stabilization spring 4 has a first connecting part 7, a second connecting part 8, and a third connecting part 9. The second connecting part 8 is located between the first connecting part 7 and the third connecting part 9. The first connecting part 7 and the second connecting part 8 are connected to the base 1, and the third connecting part 9 is connected to the support 3. There is a gap 10 between the second connecting part 8 and the base 1. Damping glue is applied at the gap 10 to connect the second connecting part 8 and the base 1.

[0049] In this embodiment, one of the base 1 and the support 3 is provided with an anti-shake coil 11, and the other is provided with an anti-shake magnet 12. When the anti-shake coil 11 is energized, it generates a Lorentz force with the anti-shake magnet 12, causing the support 3 to move relative to the base 1 in an anti-shake plane perpendicular to the optical axis. Specifically, the base 1 is provided with an anti-shake coil 11, and the support 3 is provided with an anti-shake magnet 12. Depending on the shaking condition, the anti-shake coil 11 outputs a current based on the shaking signal from the corresponding chip, thereby generating a Lorentz force with the anti-shake magnet 12. This allows for anti-shake action through a driving mechanism. To further save labor and material costs, in this embodiment, the carrier 2, support 3, and anti-shake spring 4 are prefabricated as independent parts with fixed structures. During production line assembly, only the driving components need to be assembled based on the prefabricated structures, reducing the error rate caused by assembling minute components during manual operation.

[0050] In this embodiment, the image stabilization spring 4 is used as an OIS support component, enabling the base 1 to provide suspended support for the carrier 2 and the bracket 3. This allows the lens 33 to have good freedom of movement above the base 1, thus enabling the image stabilization spring 4 to reset the image when it shakes. In this embodiment, the independent image stabilization module has four corners, each equipped with an image stabilization spring 4. Of the three connecting parts, the first connecting part 7 and the second connecting part 8 are connected to the base 1, and the third connecting part 9 is connected to the bracket 3. Further, as... Figure 2 As shown, the image stabilizing spring 4 is made of bent metal sheet. The image stabilizing spring 4 has a first connecting part 7, a second connecting part 8, and a third connecting part 9. The first connecting part 7 and the second connecting part 8 are connected by a first support arm 13, and the second connecting part 8 and the third connecting part 9 are connected by a second support arm 14. In the initial state, the first support arm 13 and the second support arm 14 are perpendicular to the image stabilizing plane, the plane containing the first support arm 13 is perpendicular to the plane containing the second support arm 14, and the image stabilizing plane is perpendicular to the optical axis. Based on this structure, the image stabilizing spring 4 connects the base 1 and the bracket 3 via SMT surface mount technology. That is, the image stabilizing spring 4 can serve as an intermediate unit for electrical connection, thereby reducing the overall module structure volume in the direction perpendicular to the optical axis by 40% to 60%. The base 1 has embedded parts to achieve electrical conduction. Figure 4 As shown, a rectangular coordinate system 0-XYZ is established. During vibration, if the carrier 2 moves along the X-axis, the first support arm 13 deforms, storing energy. Because there is damping rubber between the second connecting part 8 and the base 1, the damping rubber's properties create a damping force between the anti-shake spring 4 and the base 1, preventing abnormal situations caused by sudden acceleration. During reset, the stored energy released by the first support arm 13, combined with the reaction force at the damping rubber, enables faster anti-shake reset. The same principle applies if the carrier 2 moves along the Y-axis during vibration. By setting the anti-shake coil 11 and the anti-shake magnet 12, rapid anti-shake reset can be achieved, saving energy consumption for driving the anti-shake system.

[0051] like Figure 2 , Figure 4 and Figure 5 As shown, both the first connecting part 7 and the third connecting part 9 have mating holes 15, and the base 1 has mating protrusions 16. The mating holes 15 and the mating protrusions 16 are connected to realize the connection between the first connecting part 7 and the base 1, and the connection between the third connecting part 9 and the base 1. Then, glue is applied and baked to fix it. The third connecting part 9 is fixed in the same way. There is a gap 10 between the second connecting part 8 and the base 1. The damping glue is applied at the gap 10 to realize the connection between the second connecting part 8 and the base 1 to achieve the damping and anti-shake effect.

[0052] In AF focusing structures, some existing technologies typically connect the second connecting part 8 to the base 1 via a guide structure. Therefore, image stabilization cannot be achieved at the location of the second connecting part 8. In other words, existing image stabilization structures mainly rely on the deformation of the support arm. Because the guide structure and the second connecting part 8 are in a sliding fit in existing designs, there is hard contact in the image stabilization plane. Consequently, sudden acceleration cannot be buffered and decelerated, leading to deformation or breakage of the guide structure after prolonged use. In this embodiment, the image stabilization spring 4 and the guide structure also provide image stabilization during focusing. In other words, through the synergy of the image stabilization spring 4 and the guide structure, shaking during focusing cannot affect the image stabilization function. Unlike existing technologies, this results in more precise focusing and lower power consumption. Specifically, as... Figures 6 to 11 As shown, the guiding structure in this embodiment includes a guide groove and a guide member 17. At least one of the carrier 2 and the support 3 is provided with a guide groove, the axis of which is parallel to the optical axis, and the guide member 17 is disposed within the guide groove. Figure 11 As shown, in this embodiment, the guide groove includes a first groove 18 disposed on the carrier 2 and a second groove 19 disposed on the bracket 3. One of the first groove 18 and the second groove 19 has at least one contact point with the guide member 17, and the other has two contact points with the guide member 17. It can be seen that the guide member 17 is located between the first groove 18 and the second groove 19. Specifically, the first groove 18 is a U-shaped groove, and the second groove 19 is a V-shaped groove. The first groove 18 has one contact point with the guide member 17, and the other has two contact points with the guide member 17, thus forming a triangular contact structure, which is beneficial to improving guiding stability.

[0053] like Figure 11 As shown, in this embodiment, the groove 18 includes a smoothly transitioned groove wall 20, groove wall 21, and groove wall 22, with the guide member 17 in contact with groove wall 21. Further, in one embodiment, the acute angle between groove wall 20 and groove wall 21, and the acute angle between groove wall 21 and groove wall 22, are greater than or equal to 30° and less than 45°. This angle allows for a suitable fitting space between the guide member 17 and the guide groove, improving the relative movement capability between the carrier 2 and the support 3. Based on the above embodiment, or simultaneously with the above embodiment, a gap 23 is provided between groove wall 20 and guide member 17, and between groove wall 22 and guide member 17. Thus, when the product is subjected to external pressure, a non-opposing pressure is formed between the groove wall of groove 18 and guide member 17, effectively dispersing the external force and preventing deformation or disengagement of guide member 17 due to external force. In this embodiment, guide member 17 is specifically a sliding rod. In other embodiments, the guide 17 is made of ball bearings, and after the guide groove is structurally matched, the above-mentioned technical effect can also be achieved.

[0054] In this embodiment, focusing is achieved through the interaction of the focusing coil 5 and the focusing magnet 6. Specifically, the focusing coil 5 is mounted on the bracket 3, and the focusing magnet 6 is mounted on the carrier 2. One side of the carrier 2 has a mounting part 24 for mounting the focusing magnet 6. The focusing coil 5 is mounted on the side wall of the bracket 3. Furthermore, a circuit board 25 is provided on one side of the bracket 3, and the coil is mounted on the circuit board 25 and electrically connected to the circuit board 25. An AF focusing detection element 26 is also provided on the circuit board 25, and the detection element 26 is electrically connected to the circuit board 25, thereby forming a closed loop for the overall module signal transmission and ensuring the accuracy of the focusing displacement. To further ensure the stability of the AF focusing guide (Z-axis direction), the guide structure has two locations, located on the same side of the focusing magnet 6, and arranged symmetrically. It should be noted that mounting parts 27 are provided on the other three side walls of the bracket 3 where the focusing coil 5 is not located to assemble the image stabilizing magnet 12.

[0055] like Figure 9 and Figure 10 As shown, to further improve the stability of the focusing motion, an attraction element 28 is also provided in one of the carrier 2 and the support 3 where the focusing coil 5 is located. The attraction element 28 and the focusing magnet 6 have a magnetic force, so that the carrier 2 and the support 3 are tightly attached to the guide element 17. In this embodiment, the attraction element 28 is a ferromagnetic metal, which is attracted by the focusing magnet 6 in a static state. Specifically, the attraction element 28 is provided on the back side of the circuit board 25, so that the magnetic force generated by the attraction element 28 and the focusing magnet 6 pre-presses the guide element 17. This allows both the carrier 2 and the support 3 to effectively slide in contact with the guide element 17 during the focusing process, thereby improving focusing accuracy and reducing energy consumption. In some embodiments, the attracting element 28 is also made of ferromagnetic metal and is magnetized. It is located on the opposite side of the sidewall of the circuit board 25 on the support. If the magnetized attracting element 28 and the magnetic poles of the focusing magnet 6 are opposite each other, a repulsive effect will occur. At this time, the pre-pressure of the guide element 17 can still be achieved. Although the magnetic field of the magnetized attracting element 28 will affect the circuit signal, signal errors can be avoided by using magnetic shielding structures, algorithm optimization, etc. It should be noted that the pre-pressure of the attracting element 28 is achieved by the attracting element 28 abutting against the second groove wall 21 of the first groove 18 and the two side groove walls of the second groove 19.

[0056] like Figure 3As shown, for ease of assembly, in this embodiment, the carrier 2 has an assembly part 29, and the bracket 3 has an assembly part 30. The assembly part 29 and the assembly part 30 are movably coupled along the optical axis to position and assemble the carrier 2 and the bracket 3. The groove 19 is provided in the assembly part 30. The bracket 3 also has a placement part 31, on which the carrier 2 is placed. The assembly part 29 is configured as a slider, and the assembly part 30 is configured as a groove. The mating lines of the two are parallel to the optical axis, which facilitates installation and ensures the accurate contact of the groove 18 and the groove 19. It can be seen that this structure is also beneficial for the carrier 2 to support the focusing movement of the lens 33.

[0057] To facilitate the assembly of the guide component 17, the base 1 is provided with an assembly hole, through which the guide component 17 is inserted into the guide groove. A cover plate 32 is provided on the side of the bracket 3 away from the base 1, covering the guide groove in a projection plane perpendicular to the optical axis. In this embodiment, the bracket 3 and the cover plate 32 can be snapped together for positioning and further fixed by adhesive application. Specifically, one of the bracket 3 and the cover plate 32 is provided with a locking element 35, and the other with a fastener 36. For example... Figure 1 and Figure 3 As shown, to facilitate both assembly and maintenance, the bracket 3 is equipped with a clamp 35, and the cover plate 32 is equipped with a fastener 36. After the guide member 17 is inserted into the guide groove from the base 1, the assembly hole can be sealed with adhesive.

[0058] The independent image stabilization module in this embodiment also includes a housing 34. After the above assembly is completed, the housing 34 is connected to the base 1 to realize the assembly of all independent image stabilization modules.

[0059] Based on the aforementioned independent image stabilization module, this embodiment also discloses an electronic device, which may be a smartwatch, smart bracelet, mobile phone, tablet, AI glasses, etc. The electronic device includes an independent image stabilization module and a lens 33; the lens 33 is mounted on the carrier 2. Therefore, when using the electronic device to take images, image stabilization can be better achieved.

[0060] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An independent image stabilization module, characterized in that, It includes a base, a carrier, and a support, wherein the carrier and the support are movably connected, and the base and the support are connected by a shock-absorbing spring. A focusing coil is provided between the carrier and the support, and a focusing magnet is provided between the carrier and the support. The focusing coil is energized to drive the carrier to move relative to the support along the optical axis. The anti-shake spring has a first connecting part, a second connecting part, and a third connecting part. The second connecting part is located between the first connecting part and the third connecting part. The first connecting part and the second connecting part are connected to the base, and the third connecting part is connected to the bracket. There is a gap between the second connecting part and the base, and damping glue is applied at the gap to connect the second connecting part and the base.

2. The independent image stabilization module as described in claim 1, characterized in that, The anti-shake spring is made of bent metal sheet. The anti-shake spring has a first connecting part, a second connecting part, and a third connecting part. The first connecting part and the second connecting part are connected by a first support arm, and the second connecting part and the third connecting part are connected by a second support arm. In the initial state, the first support arm and the second support arm are perpendicular to the stabilization plane, the plane containing the first support arm is perpendicular to the plane containing the second support arm, and the stabilization plane is perpendicular to the optical axis.

3. The independent image stabilization module as described in claim 1, characterized in that, At least one of the carrier and the support is provided with a guide groove, the axis of the guide groove is parallel to the optical axis, and a guide element is provided in the guide groove.

4. The independent image stabilization module as described in claim 3, characterized in that, The guide groove includes a groove one disposed on the carrier and a groove two disposed on the bracket. One of the grooves has at least one contact point with the guide member, and the other has two contact points with the guide member.

5. The independent image stabilization module as described in claim 4, characterized in that, The groove having at least one contact point with the guide includes a smoothly transitioning groove wall 1, groove wall 2, and groove wall 3, wherein the guide is in contact with at least groove wall 2; Wherein, there is a gap two between the first groove wall and the guide member, and / or between the third groove wall and the guide member; or, the acute angle between the first groove wall and the second groove wall, and / or the acute angle between the second groove wall and the third groove wall is greater than or equal to 30° and less than 45°.

6. The independent image stabilization module as described in claim 3, characterized in that, The carrier has an assembly part one, and the bracket is provided with an assembly part two. The assembly part one and the assembly part two are movably coupled in the optical axis to position and assemble the carrier and the bracket. The guide groove includes a groove one and a groove two, the groove one is disposed in the assembly part one, and the groove two is disposed in the assembly part two; The bracket also includes a placement section on which the carrier is placed.

7. The independent image stabilization module as described in claim 3, characterized in that, The carrier and the support in which the focusing coil is disposed are also provided with an attraction element, and there is a magnetic force between the attraction element and the focusing magnet, so that the carrier and the support are in close contact with the guide element.

8. The independent image stabilization module as described in claim 3, characterized in that, The base is provided with an assembly hole, and the guide member is inserted into the guide groove from the assembly hole; A cover plate is provided on the side of the bracket away from the base, and the cover plate covers the guide groove in the projection plane perpendicular to the optical axis.

9. The independent image stabilization module as described in claim 1, characterized in that, One of the base and the bracket is provided with an anti-shake coil, and the other is provided with an anti-shake magnet. The anti-shake coil is energized to drive the bracket to move relative to the base in an anti-shake plane perpendicular to the optical axis.

10. An electronic device, characterized in that, include: The independent image stabilization module as described in any one of claims 1 to 9; as well as The lens is mounted on the carrier.

Images