A new anti-static VCM structure
The combination of positioning blocks, spring clips, and threaded connections replaces glue for fixing, solving the problem of unstable components in the VCM structure. This achieves stable installation, high lens transparency, and easy cleaning, while also enhancing connection sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANCHANG TXD PRECISION OPTOELECTRONICS CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-26
AI Technical Summary
In existing VCM structures, components are not securely fixed with glue, making repair and replacement difficult and posing a risk of detachment. Furthermore, they lack reusability.
It adopts a combination structure of positioning block, front spring, rear spring and pressure block, combined with threaded connection and rubber gasket sealing design, to replace the traditional glue fixation method, and adds a reinforcing layer, antistatic layer and oleophobic film to the outside of the lens to improve lens protection and cleanliness.
It achieves stable installation of components, facilitates maintenance and replacement, improves lens transparency and cleanliness, enhances connection sealing, and prevents dust from entering.
Smart Images

Figure CN224418670U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of VCM structure technology, and more specifically, to a novel antistatic VCM structure. Background Technology
[0002] The mobile phone camera module mainly consists of a lens, a VCM motor, and a photosensitive spring. The VCM motor is used to adjust the focus for clear imaging. The VCM motor is also called a voice coil motor and is mainly composed of a base, a coil, magnets, a spring, and a housing. The base and housing, which hold the spring, serve as the carrier for the VCM spring. During assembly, the spring is first fixed with glue, and then the base and other carriers are fixed with adhesive. During fixing, the spring is mainly fixed to the base with glue, and four magnets are used to fill the gap between the sleeve and the base.
[0003] However, the above-mentioned installation structures all use glue to fix the springs and other components, which not only makes maintenance and replacement more troublesome and does not have the performance of reuse, but the glue bonding is also not strong and there is still a risk of falling off. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the problems existing in the prior art, this utility model provides a novel antistatic VCM structure to solve the problem that the aforementioned installation structures mentioned in the background art all use glue to fix the springs and other components, which is not only troublesome to repair and replace and lacks reusability, but also the glue adhesion is not strong and there is still a technical problem of falling off.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel antistatic VCM structure, comprising a base, with positioning blocks fixedly mounted on the inner wall of the base. Four sets of positioning blocks are arranged in a square configuration. A front spring is slidably mounted inside the base. Magnets are fixedly mounted on the upper surface of the front spring at its four corners. A carrier is positioned in the middle of the front spring, with a coil at the outer end of the carrier. A rear spring is positioned at the upper end of the carrier. The rear spring is slidably mounted on the positioning blocks. Each positioning block has a groove, and a fixing shaft is provided inside each groove. A pressure block is rotatably mounted on each fixing shaft, with the bottom of each pressure block abutting against the periphery of the rear spring. A clamping nut is provided on each fixing shaft, and the clamping nut is threadedly connected to the fixing shaft. A lens is mounted at the front end of the carrier, which passes through the base.
[0008] The present invention is further provided with a reinforcing layer on the outer wall of the lens, an anti-reflective film on the outer wall of the reinforcing layer, an antistatic layer on the outer wall of the antistatic film, and an oleophobic film on the outer wall of the antistatic layer, which facilitates the protection of the lens.
[0009] The present invention is further configured such that the reinforcing layer is made of resin material, the antireflective film is made of magnesium fluoride material, and the antistatic layer is made of PET material.
[0010] The present invention is further configured such that a cover is provided on the upper end face of the base, a retaining ring is fixedly provided around the periphery of the cover, the inner wall of the retaining ring is in contact with the periphery of the base, and threaded posts are fixedly provided on the upper end face of the base at each of the four corners. The cover and the threaded posts are movably installed, and each threaded post is provided with a fastening nut. The bottom of each fastening nut abuts against the upper end face of the cover, so as to facilitate the covering and sealing of the upper end of the base.
[0011] The present invention is further provided with a rubber gasket at the connection position between the cover and the base, which further enhances the sealing performance of the connection position between the cover and the base.
[0012] The present invention is further configured such that the rear spring is slidably mounted to the carrier, and the carrier is located inside the rear spring.
[0013] The present invention is further configured such that the coil is located at the middle position of a plurality of magnets.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a novel antistatic VCM structure, which has the following beneficial effects:
[0016] 1. By setting a positioning block, a front spring, a rear spring, and a pressure block, the user can install the front spring, carrier, and rear spring into the base using the positioning block. Then, rotate the pressure block so that its bottom abuts against the upper surface of the rear spring. Finally, tighten the pressure nut to fix the pressure block, which facilitates the fixed installation of various components inside the structure.
[0017] 2. By setting up a lens, a reinforcing layer, and an antistatic layer, the lens is protected by utilizing the high strength, impact resistance, and shatter resistance of resin materials. The antireflective coating at the front end of the reinforcing layer reduces light emission from the lens, thereby improving lens transmittance. The antistatic layer prevents dust from easily adhering to the lens surface, or if it does, it is easily blown away, thus preventing the lens from getting dirty. The oleophobic coating reduces the adhesion of water and oil, making it easier to clean.
[0018] 3. By setting up a buckle cover, a retaining ring, and a fastening nut, the user can install the buckle cover onto the upper end of the base and slide it onto the threaded post. Then, tighten the fastening nut on the outside of the threaded post to deform the rubber gasket between the buckle cover and the base, thereby increasing the sealing of the connection and preventing dust from entering. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a novel antistatic VCM structure in its unused state.
[0020] Figure 2 Exploded view of the installation of the base, cover, threaded post, and fastening nut;
[0021] Figure 3 A schematic diagram showing the installation positions of the internal positioning blocks, grooves, fixing shafts, and pressure blocks of the base;
[0022] Figure 4 Exploded view of the installation of the front and rear spring clips inside the base;
[0023] Figure 5 This is a schematic diagram showing the positions of the reinforcing layer, antireflective coating, antistatic layer, and oleophobic coating on the lens.
[0024] In the diagram: 1. Base; 2. Positioning block; 3. Front spring; 4. Magnet; 5. Carrier; 6. Coil; 7. Rear spring; 8. Groove; 9. Fixing shaft; 10. Pressure block; 11. Pressure nut; 12. Lens; 13. Reinforcing layer; 14. Anti-reflective coating; 15. Antistatic layer; 16. Oleophobic film; 17. Cover; 18. Retaining ring; 19. Threaded post; 20. Fastening nut; 21. Rubber pad. Detailed Implementation
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0028] Please see Figure 1-5A novel antistatic VCM structure includes a base 1, with positioning blocks 2 fixedly mounted on the inner wall of the base 1. The positioning blocks 2 are arranged in four sets in a row. A front spring 3 is slidably mounted inside the base 1. Magnets 4 are fixedly mounted on the upper surface of the front spring 3 at the four corners. A carrier 5 is mounted in the middle of the front spring 3. A coil 6 is mounted on the outer end of the carrier 5. A rear spring 7 is mounted on the upper end of the carrier 5. The rear spring 7 is slidably mounted on the positioning blocks 2. Each positioning block 2 has a groove 8. A fixing shaft 9 is mounted inside each groove 8. A pressure block 10 is rotatably mounted on each fixing shaft 9. The bottom of each pressure block 10 abuts against the periphery of the rear spring 7. Each fixing shaft 9 has a clamping nut 11, which is threadedly connected to the fixing shaft 9. The front end of the carrier 5 passes through the base 1 and has a lens 12.
[0029] In this embodiment, a reinforcing layer 13 is provided on the outer wall of the lens 12, an antireflective film 14 is provided on the outer wall of the reinforcing layer 13, an antistatic layer 15 is provided on the outer wall of the antireflective film 14, and an oleophobic film 16 is provided on the outer wall of the antistatic layer 15. The reinforcing layer 13 is made of resin material, the antireflective film 14 is made of magnesium fluoride material, and the antistatic layer 15 is made of PET material.
[0030] More specifically, the user can install the front spring 3, carrier 5 and rear spring 7 into the base 1 using the positioning block 2, then rotate the pressure block 10 so that its bottom abuts against the upper surface of the rear spring 7, and then tighten the clamping nut 11 to fix the pressure block 10, so as to facilitate the fixed installation of various components inside the structure. By setting the reinforcing layer 13 at the front end of the lens 12, the high strength, impact resistance and unbreakability of the resin material can be used to protect the lens 12. By setting the anti-reflective coating 14 at the front end of the reinforcing layer 13, the light emission of the lens can be reduced, thereby improving the brightness of the lens 12. The antistatic layer 15 can prevent dust in the air from adhering to the lens surface, or make it easy to blow away after adhering, so that the lens is not easy to get dirty. The oleophobic coating 16 can reduce the adhesion of water and oil stains, making it easier to clean.
[0031] Please see Figures 1-3 As an implementation method to increase the sealing of the connection between the base 1 and the cover 17: the upper end face of the base 1 is provided with the cover 17, the periphery of the cover 17 is fixedly provided with a retaining ring 18, the inner wall of the retaining ring 18 is in contact with the periphery of the base 1, the upper end face of the base 1 is fixedly provided with threaded posts 19 at the four corners, the cover 17 and the threaded posts 19 are movably installed, the threaded posts 19 are provided with fastening nuts 20, the bottom of the fastening nuts 20 is in contact with the upper end face of the cover 17, and the connection position between the cover 17 and the base 1 is provided with a rubber pad 21.
[0032] Specifically, the user can install the cover 17 onto the upper end of the base 1 and slide it onto the threaded post 19. Then, tighten the fastening nut 20 on the outside of the threaded post 19 to deform the rubber gasket 21 between the cover 17 and the base 1, thereby increasing the sealing of the connection and preventing dust from entering.
[0033] Please refer to Figure 4 As a further embodiment for connecting with external electronic components: the rear spring 7 is slidably mounted to the carrier 5, the carrier 5 is located inside the rear spring 7, and the coil 6 is located in the middle of the plurality of magnets 4.
[0034] Specifically, the device can be connected to external electronic control components via carrier 5, facilitating subsequent use.
[0035] In summary, when using the overall device: the user can install the front spring 3, carrier 5, and rear spring 7 into the base 1 using the positioning block 2, then rotate the pressure block 10 so that its bottom abuts against the upper surface of the rear spring 7, and then tighten the clamping nut 11 to fix the pressure block 10, thus facilitating the fixed installation of various components inside the structure. By setting a reinforcing layer 13 at the front end of the lens 12, the high strength, impact resistance, and unbreakability of the resin material can be used to protect the lens 12. By setting an anti-reflective coating 14 at the front end of the reinforcing layer 13, the light from the lens can be reduced. The emission enhances the transparency of the lens 12. The antistatic layer 15 prevents dust in the air from easily adhering to the lens surface, or makes it easy to blow away if it does adhere, thus preventing the lens from getting dirty. The oleophobic film 16 reduces the adhesion of water and oil, making it easier to clean. When shielding one end of the base 1, the cover 17 can be installed on the upper end of the base 1 and slidably installed with the threaded post 19. Then, the fastening nut 20 is tightened on the outside of the threaded post 19 to deform the rubber gasket 21 between the cover 17 and the base 1, thereby increasing the sealing of the connection and preventing dust from entering.
[0036] The motors mentioned above are all controlled by controllers or drivers. Since the controllers and matching equipment are common devices and belong to existing mature technologies, their electrical connection relationships and specific circuit structures will not be described in detail here.
[0037] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A novel antistatic VCM structure, comprising a base (1), characterized in that: Positioning blocks (2) are fixedly provided on the inner wall of the base (1). The positioning blocks (2) are arranged in four sets in a row. A front spring plate (3) is slidably provided inside the base (1). Magnets (4) are fixedly provided on the upper surface of the front spring plate (3) and at the four corners. A carrier (5) is provided in the middle position of the front spring plate (3). A coil (6) is provided at the outer end of the carrier (5). A rear spring plate (7) is provided at the upper end of the carrier (5). The rear spring plate (7) and the positioning blocks (2) are connected. The positioning block (2) is slidably installed. Each of the positioning blocks (2) has a groove (8). Each groove (8) has a fixed shaft (9) inside. Each fixed shaft (9) has a pressure block (10) rotatably mounted on it. The bottom of each pressure block (10) abuts against the periphery of the rear spring (7). Each fixed shaft (9) has a clamping nut (11) and the clamping nut (11) is threadedly connected to the fixed shaft (9). The front end of the carrier (5) passes through the base (1) and has a lens (12).
2. The novel antistatic VCM structure according to claim 1, characterized in that: The lens (12) has a reinforcing layer (13) on its outer wall, an anti-reflective film (14) on its outer wall, an antistatic layer (15) on its outer wall, and an oleophobic film (16) on its outer wall.
3. The novel antistatic VCM structure according to claim 2, characterized in that: The reinforcing layer (13) is made of resin material, the antireflective film (14) is made of magnesium fluoride material, and the antistatic layer (15) is made of PET material.
4. The novel antistatic VCM structure according to claim 1, characterized in that: The upper surface of the base (1) is provided with a cover (17), and a retaining ring (18) is fixedly provided around the periphery of the cover (17). The inner wall of the retaining ring (18) is in contact with the periphery of the base (1). Threaded posts (19) are fixedly provided on the upper surface of the base (1) and at the four corners. The cover (17) and the threaded posts (19) are movably installed. Each threaded post (19) is provided with a fastening nut (20), and the bottom of the fastening nut (20) is in contact with the upper surface of the cover (17).
5. A novel antistatic VCM structure according to claim 4, characterized in that: A rubber pad (21) is provided at the connection position between the cover (17) and the base (1).
6. The novel antistatic VCM structure according to claim 1, characterized in that: The rear spring (7) is slidably mounted to the carrier (5), and the carrier (5) is located inside the rear spring (7).
7. The novel antistatic VCM structure according to claim 1, characterized in that: The coil (6) is located in the middle of the plurality of magnets (4).