A dual lens switching driving device

Abstract

This utility model relates to the field of dual-lens switching technology, specifically a dual-lens switching driving device, comprising: a support frame for adjusting the distance between two sets of single-lens bodies, the two sets of single-lens bodies being slidably mounted on the support frame; the two sets of single-lens bodies being connected by an elastic structure, and the two sets of single-lens bodies being connected to two sets of guide structures symmetrically arranged along the width direction of the support frame; the support frame also includes a distance adjustment component, the distance adjustment component including a driving component and a guiding component, the driving component driving the guide structures to slide along the length direction of the support frame when it is activated, and during the sliding process, due to the cooperation between the guiding component and the elastic structure, the distance between the two sets of single-lens bodies can be adjusted; through the cooperation between the components, precise adjustment of the distance between the two sets of single-lens bodies can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of dual-lens switching technology, specifically a dual-lens switching drive device. Background Technology

[0002] Dual-lens driving devices are currently widely used in mobile phone camera modules. Existing lens driving devices are generally single-lens driving devices. In recent years, the lens driving devices of dual-camera modules also use a pair of single-lens driving devices.

[0003] The working principle of the lens drive device is to supply power to the coil on the lens carrier, so that the coil generates a magnetic field that changes at a certain frequency. The changing magnetic field repels or attracts the magnet, so that the coil on the lens carrier is subjected to magnetic force. The lens carrier is connected to a spring, and the lens carrier adjusts its spatial position under the action of the spring force and the magnetic force to achieve the purpose of focusing.

[0004] However, when two single-lens driving devices are used in a dual-camera module, there is a defect of electromagnetic field interference between the two single-lens driving devices during use. This will reduce the accuracy of the position control of the coil and lens, resulting in focusing errors, which is not conducive to the widespread development of dual-camera module technology. Utility Model Content

[0005] The purpose of this invention is to provide a dual-lens switching drive device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A dual-lens switching drive device is mounted on a support frame and is used to adjust the distance between two sets of single-lens bodies, wherein the two sets of single-lens bodies are slidably mounted on the support frame. The two sets of single lens bodies are connected by an elastic structure, and the two sets of single lens bodies are connected to two sets of guide structures symmetrically arranged along the width direction of the support frame; The support frame is also equipped with a distance adjustment component, which includes a driving component and a guide component. When the driving component is activated, it can drive the guide structure to slide along the length direction of the support frame. During the sliding process, due to the cooperation between the guide component and the elastic structure, the distance between the two sets of single lens bodies can be adjusted.

[0007] The dual-lens switching drive device described above: the elastic structure includes a plug tube disposed on one of the single lens bodies, a spring slidably disposed inside the plug tube, one end of the spring abutting against the plug tube, the other end abutting against a plug rod slidably disposed inside the plug tube, and the end of the plug rod away from the spring being fixed to the other set of single lens bodies.

[0008] The dual-lens switching drive device described above: the guide structure includes a slide rail disposed on the support frame, a slider slidably disposed on the slide rail, a groove being provided on the side of the slider away from the slide rail, a moving member being slidably disposed in the groove, and the moving member being slidably connected to the single lens body.

[0009] The dual-lens switching drive device described above: the moving component includes a slide rod slidably disposed in the slide groove, a moving plate disposed on the slide rod, and the moving plate slidably disposed in a guide rail disposed on the single lens body.

[0010] The dual-lens switching drive device described above: the drive component includes a first magnet and a second magnet disposed on a support frame, and the first magnet and the second magnet are symmetrically arranged along the length direction of the support frame.

[0011] The dual-lens switching drive device described above: the guide includes two sets of guide plates symmetrically arranged along the height direction of the support frame, the guide plates are provided with composite grooves, and protrusions are slidably arranged in the composite grooves, the protrusions being slidably connected to the single lens body.

[0012] The dual-lens switching drive device described above: the composite groove includes horizontal grooves equidistantly opened on the guide plate, adjacent groups of horizontal grooves are connected by inclined grooves, and each group of horizontal grooves is provided with positioning grooves equidistantly opened.

[0013] Compared with the prior art, the beneficial effects of this utility model are: By setting up an adjustable distance component, an elastic structure, and a guide structure, and by utilizing the cooperation between these components, the distance between the two sets of single lens bodies can be adjusted. During the adjustment process, the electromagnetic attraction of the slider and the protrusion by a single first magnet or second magnet can reduce magnetic field interference. At the same time, combined with the cooperation between the composite groove and the protrusion on the guide, the distance between the two sets of single lens bodies can be continuously adjusted, thereby achieving the effect of multi-focal length adjustment of the camera. Furthermore, during the focus adjustment process, the cooperation between the positioning groove on the composite groove and the elastic structure ensures that the positions of the two sets of single lens bodies are locked after focusing. In particular, even if there is an error in the magnetic attraction, the elastic structure can still combine with the densely distributed positioning grooves to ensure the stability of the single lens body and achieve the purpose of precise focusing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the dual-lens switching drive device.

[0015] Figure 2This is a schematic diagram of the internal structure of the support frame in the dual-lens switching drive device.

[0016] Figure 3 This is a schematic diagram of the structure inside the support frame of the dual-lens switching drive device from another perspective.

[0017] Figure 4 This is a schematic diagram of the guide structure in a dual-lens switching drive device.

[0018] Figure 5 This is a schematic diagram of the elastic structure in the dual-lens switching drive device.

[0019] Figure 6 This is a schematic diagram of the guide component in the dual-lens switching drive device.

[0020] In the diagram: 1. Support frame; 2. Single lens body; 201. Guide rail; 3. Guide plate; 301. Horizontal groove; 302. Inclined groove; 303. Positioning groove; 401. First magnet; 402. Second magnet; 5. Slide rail; 6. Slider; 601. Slide groove; 7. Connecting cylinder; 8. Connecting rod; 9. Slide rod; 901. Moving plate; 10. Protruding post; 11. Spring; 12. Positioning rod. Detailed Implementation

[0021] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0022] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0023] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0024] Please see Figures 1-6 In this embodiment of the utility model, a dual-lens switching drive device is mounted on a support frame 1 and is used to adjust the distance between two sets of single-lens bodies 2. The two sets of single-lens bodies 2 are slidably mounted on the support frame 1. Specifically, please refer to Figure 2Two sets of positioning rods 12 are symmetrically arranged inside the support frame 1 along its width direction. The axial direction of the positioning rods 12 is parallel to the depth direction of the support frame 1. The two sets of single lens bodies 2 are slidably arranged on the positioning rods 12. Under the restriction of the positioning rods 12, the single lens body 2 can only slide along the depth direction of the support frame 1.

[0025] As the two sets of single lens bodies 2 slide relative to the positioning rod 12, the distance between the two sets of single lens bodies 2 will change, thereby realizing the focusing and focal length adjustment of the camera.

[0026] Further, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 The two sets of single lens bodies 2 are connected by an elastic structure, and the two sets of single lens bodies 2 are connected to two sets of guide structures symmetrically arranged along the width direction of the support frame 1. The elastic structure includes a plug tube 7 disposed on one of the single lens bodies 2, a spring 11 slidably disposed inside the plug tube 7, one end of the spring 11 abutting against the plug tube 7, and the other end abutting against the plug rod 8 slidably disposed inside the plug tube 7, and the end of the plug rod 8 away from the spring 11 is fixed to the other set of single lens bodies 2. Specifically, the spring 11 is always in a compressed state so that the two sets of single lens bodies 2 tend to move away from each other. In the initial state, the distance between the two sets of single lens bodies 2 is the largest. At this time, the camera is in a long focal length state, which is suitable for detailed observation.

[0027] The guide structure includes a slide rail 5 mounted on the support frame 1, a slider 6 slidably mounted on the slide rail 5, a groove 601 provided on the side of the slider 6 away from the slide rail 5, a moving part slidably mounted in the groove 601, and the moving part slidably connected to the single lens body 2. The movable component includes a slide rod 9 slidably disposed in the slide groove 601, a movable plate 901 disposed on the slide rod 9, and the movable plate 901 slidably disposed in the guide rail 201 disposed on the single lens body 2. Specifically, please refer to Figure 4 The slide rail 5 is set along the length of the support frame 1. In the initial state, due to the elastic potential energy stored in the spring 11, the slide rod 9 is located at the end of the stroke of the slide groove 601 (at this time, the distance between the two sets of slide rods 9 is at its maximum). When the slider 6 slides along the slide rail 5, due to the restriction of the single lens body 2 by the positioning rod 12, the moving plate 901 will slide synchronously in the guide rail 201.

[0028] Further, please refer to Figures 1-6 The support frame 1 is also provided with a distance adjustment component, which includes a driving component and a guide component. When the driving component is activated, it can drive the guide structure to slide along the length direction of the support frame 1. During the sliding process, due to the cooperation between the guide component and the elastic structure, the distance between the two sets of single lens bodies 2 can be adjusted. The driving component includes a first magnet 401 and a second magnet 402 disposed on the support frame 1, and the first magnet 401 and the second magnet 402 are symmetrically arranged along the length direction of the support frame 1. The guide includes two sets of guide plates 3 symmetrically arranged along the height direction of the support frame 1. The guide plates 3 are provided with composite grooves, and protrusions 10 are slidably arranged in the composite grooves. The protrusions 10 are slidably connected to the single lens body 2. Specifically, the first magnet 401 and the second magnet 402 are controlled by the same control system. Under the drive of the control system, only one set of the first magnet 401 and the second magnet 402 is energized to reduce magnetic field interference. After being energized, the first magnet 401 and the second magnet 402 can generate electromagnetic attraction to the protrusion 10 and the slide rod 9, thereby driving the slide rod 9 and the protrusion 10 to slide along the guide rail 201 and drive the single lens body 2 to slide. During the sliding process, the protrusion 10 moves in the composite groove, which can drive the single lens body 2 to rise and fall along the depth direction of the support frame 1, thereby changing the distance between the two sets of single lens bodies 2, thereby achieving the effect of focal length switching.

[0029] Specifically, please refer to Figure 2 , Figure 6 The composite groove includes horizontal grooves 301 that are equidistantly opened on the guide plate 3. Two adjacent sets of horizontal grooves 301 are connected by inclined grooves 302. Each set of horizontal grooves 301 is provided with positioning grooves 303 at equal intervals. In particular, the distance between two adjacent sets of positioning grooves 303 is small and the length of the inclined groove 302 is short. In summary, in the initial state, the two sets of single lens bodies 2 are far apart from each other and are located on the far right side of the support frame 1, with the protruding post 10 located in the far right positioning groove 303.

[0030] Combination Figure 2 , Figure 6The description describes a process where, when the focal length of the camera needs to be increased, the control center energizes the second magnet 402. The energized magnet 402 then attracts the slider 9 and protruding post 10 to the left. Simultaneously, the slider 9 and protruding post 10 move to the left. During this process, the protruding post 10 first disengages from the rightmost positioning groove 303. With the continued attraction of the second magnet 402, the protruding post 10 slides along the rightmost horizontal groove 301. At the same time, the slider 9 and slider 6 slide along the slide rail 5. When the protruding post 10 engages with the first set of inclined grooves 302, the continuous attraction of the second magnet 402 and the compression exerted by the inclined grooves 302 on the protruding post 10 force the protruding post 10 to bring the two sets of single-lens bodies 2 closer together, thus shortening the distance between them. During this process, the slider 9 slides within the groove 601, and the spring 11 is further compressed. When the 0-type lens is engaged with the next set of horizontal grooves 301, the distance between the two sets of single lens bodies 2 is constant. At this time, the power supply to the second magnet 402 is cut off, and the spring 11 releases some elastic potential energy, which can push the protrusion 10 to engage with the positioning groove 303 on the horizontal groove 301, thereby locking the position of the two sets of single lens bodies 2 so that the distance between the two sets of single lens bodies 2 will not easily change, making it easier for the camera to take relatively stable pictures. It should be noted that, ideally, the distance that the attraction slider 9 slides with the protrusion 10 is equal each time it is powered on, so that the protrusion 10 can engage with the positioning groove 303 after the power is cut off. However, although there is a slight deviation in the distance of each attraction movement, the protrusion 10 can still engage with the positioning groove 303 with the dense and equidistant positioning grooves 303 in the horizontal groove 301, thereby achieving the effect of precise focusing. Depending on the actual shooting needs, when wide-angle shooting is required, by continuing to energize the second magnet 402, the distance between the two sets of single lens bodies 2 can be further shortened with the cooperation of the guide, guiding structure and elastic structure, thereby obtaining a suitable focal length and taking the desired photo; when documentary shooting or detail capture is required, the first magnet 401 can be energized by the control center, which can increase the distance between the two sets of single lens bodies 2, so that the focal length of the camera is lengthened; thus realizing multi-focal length adjustment of the mobile phone camera, so that the photographer can take the photos they need.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-lens switching drive device, mounted on a support frame (1), for adjusting the distance between two sets of single-lens bodies (2), wherein the two sets of single-lens bodies (2) are slidably mounted on the support frame (1); characterized in that: The two sets of single lens bodies (2) are connected by an elastic structure, and the two sets of single lens bodies (2) are connected to two sets of guide structures symmetrically arranged along the width direction of the support frame (1); The support frame (1) is also provided with a distance adjustment component, which includes a driving component and a guide component. When the driving component is activated, it can drive the guide structure to slide along the length direction of the support frame (1). During the sliding process, due to the cooperation between the guide component and the elastic structure, the distance between the two sets of single lens bodies (2) can be adjusted.

2. The dual lens switching driving device according to claim 1, wherein The elastic structure includes a plug tube (7) disposed on one of the single lens bodies (2), a spring (11) is slidably disposed inside the plug tube (7), one end of the spring (11) abuts against the plug tube (7), the other end abuts against the plug rod (8) slidably disposed inside the plug tube (7), and the end of the plug rod (8) away from the spring (11) is fixed to another set of single lens bodies (2).

3. The dual lens switching driving device according to claim 2, wherein The guide structure includes a slide rail (5) mounted on the support frame (1), a slider (6) is slidably mounted on the slide rail (5), a groove (601) is provided on the side of the slider (6) away from the slide rail (5), a moving part is slidably mounted in the groove (601), and the moving part is slidably connected to the single lens body (2).

4. The dual lens switching driving device according to claim 3, wherein The movable component includes a slide rod (9) that is slidably disposed in the slide groove (601), and a movable plate (901) is disposed on the slide rod (9). The movable plate (901) is slidably disposed in the guide rail (201) disposed on the single lens body (2).

5. The dual lens switching driving device according to claim 2, wherein The driving component includes a first magnet (401) and a second magnet (402) disposed on the support frame (1), and the first magnet (401) and the second magnet (402) are symmetrically disposed along the length direction of the support frame (1).

6. The dual lens switching driving device according to claim 2, wherein The guide includes two sets of guide plates (3) symmetrically arranged along the height direction of the support frame (1). The guide plates (3) are provided with composite grooves, and protrusions (10) are slidably arranged in the composite grooves. The protrusions (10) are slidably connected to the single lens body (2).

7. The dual lens switching driving device according to claim 6, wherein The composite groove includes horizontal grooves (301) that are equidistantly opened on the guide plate (3), and two adjacent sets of horizontal grooves (301) are connected by inclined grooves (302), and each set of horizontal grooves (301) is provided with positioning grooves (303) at equal intervals.

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