Dual-camera automatic focusing device

Abstract

The utility model relates to the field of camera focus technology, specifically a dual-camera automatic focus device, comprising a base, the upper surface of the base is snap-connected with a snap-in seat, the upper surface of the snap-in seat is snap-connected with two mounting plates, the front surface of the mounting plate is embedded with a driving coil, the upper surface of the snap-in seat is snap-connected with a Hall sensor, the upper surface of the base is embedded with a camera carrier that is slidably connected, and the upper surface of the camera carrier is snap-connected with a Hall sensor magnet near the snap-in seat. In the utility model, the upper end of the guide rail is limited by a No. 2 jack to complete the installation of the device, and there is no need to repeatedly adjust the direction of the base and assemble parts from multiple directions, which is not prone to missing installation, facilitating the assembly of the device, making the device structure simpler and the product easy to process and form.

Description

Technical Field

[0001] The utility model relates to the technical field of camera focusing, in particular to an automatic focusing device for dual cameras. Background Art

[0002] In the prior art, a flexible circuit board is used to transmit circuit control signals and Hall signals, a Hall sensor is used to sense signals, a driving coil is used to receive signals to generate a magnetic field to move a driving magnet, and a Hall sensor magnet is used to sense the Hall signal to change the height of the camera carrier in the base to achieve the purpose of focusing. However, the devices in the prior art have certain disadvantages when used. For example, a closed-loop dual-drive autofocus device for dual cameras is described in Publication No. CN205507192U, which includes an iron shell, a dual-lens support, a Hall sensor magnet, a driving magnet, a Hall sensor, a driving coil, a flexible circuit board, a circuit board reinforcement plate and a base;

[0003] The closed-loop single-drive autofocus device of the above-mentioned device can realize accurate dual-lens driving, make the focus clearer, achieve a better framing range, and take better quality photos. However, during assembly, the components need to be installed in the front-to-back direction and the up-and-down direction, and the upper cover and the components installed in the front and back need to be aligned, which leads to the need to repeatedly adjust the direction of the base and assemble the parts from multiple directions, which is prone to missing parts and is inconvenient for assembly of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a dual-camera automatic focusing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A dual-camera autofocus device comprises a base, wherein the upper surface of the base is snap-connected with a snap-connecting seat, the upper surface of the snap-connecting seat is snap-connected with two mounting plates, the front surface of the mounting plate is embedded with a driving coil, the upper surface of the snap-connecting seat is snap-connected with a Hall sensor, the upper surface of the base is embedded with a camera carrier in a sliding connection, the upper surface of the camera carrier is snap-connected with a Hall sensor magnet at a position close to the snap-connecting seat, the upper surface of the camera carrier is snap-connected with two driving magnets at a position close to the snap-connecting seat, the two side surfaces of the camera carrier are embedded with guide rails, and the upper surface of the base is snap-connected with an upper cover.

[0007] Furthermore, a limiting hole is provided on the upper surface of the base, an inserting column is fixedly connected to the lower surface of the upper cover, and the inserting column is inserted into the limiting hole.

[0008] Furthermore, a groove is provided on the upper surface of the base, the clamping seat is inserted into the groove, a through groove is provided on the upper surface of the base, and a flexible circuit board is inserted into the through groove.

[0009] Further, a limiting groove is provided on the inner surface of the base, a No. 1 plug hole is provided at the bottom end of the limiting groove, a No. 2 plug hole is provided on the lower surface of the upper cover, and two ends of the guide rail are respectively inserted into the No. 1 plug hole and the No. 2 plug hole.

[0010] Furthermore, a through hole is formed on the outer surface of the guide rail, and a ball is rollingly connected inside the through hole.

[0011] Preferably, sliding grooves are provided on both side surfaces of the camera carrier, the ball bearings are rollingly connected to the sliding grooves, three snap-in grooves are provided on the upper surface of the snap-in seat, the mounting plate and the Hall sensor are both placed in the snap-in grooves, a limiting cover is fixedly connected to the lower surface of the upper cover, and the limiting cover is in contact with the mounting plate and the upper end of the Hall sensor.

[0012] Furthermore, a card slot is provided on the upper surface of the camera carrier, a placement slot is provided on the upper surface of the camera carrier, the driving magnet and the Hall sensor magnet are placed in the placement slot, and a card frame is connected to the inside of the card slot.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] During installation, the flexible circuit board is inserted into the through slot, and the flexible circuit board is inserted into the interior of the card connector, and the card connector is inserted into the groove. The card connector and the flexible circuit board are initially limited, and then one end of the guide rail is inserted into the No. 1 socket, and the camera carrier is placed inside the base. From top to bottom, the driving magnet and the Hall sensor magnet are installed in the placement slot, and the card connector is inserted. The upper ends of the driving magnet and the Hall sensor magnet are limited by the card connector. During the last step of installation, the insertion column is inserted into the limiting hole. This is a fool-proof design to facilitate the connection between the upper cover and the base, and the connection position between the upper cover and the base needs to be glued. At this time, the limiting cover automatically contacts the mounting plate and the Hall sensor, and the mounting plate and the Hall sensor are limited. The upper cover limits the upper end of the guide rail through the No. 2 socket to complete the installation of the device. There is no need to repeatedly adjust the direction of the base, and assemble parts from multiple directions. It is not easy to miss the installation, which is convenient for the assembly of the device, making the device structure simpler and the product easy to process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the upper cover structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure of the camera carrier of the utility model;

[0018] Figure 4 It is a schematic diagram of the disassembly of the installation structure of the Hall sensor magnet and the installation plate of the utility model.

[0019] In the figure: 1. base; 101. limit hole; 102. groove; 103. through groove; 104. limit groove; 105. No. 1 socket; 2. guide rail; 201. through hole; 202. ball bearing; 3. camera carrier; 301. sliding groove; 302. card slot; 303. placement slot; 304. card bracket; 4. driving magnet; 5. Hall sensor magnet; 6. flexible circuit board; 7. mounting plate; 701. Hall sensor; 702. driving coil; 8. card socket; 801. card slot; 9. upper cover; 901. insertion column; 902. limit cover; 903. No. 2 socket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In an embodiment of the utility model, a dual-camera autofocus device includes a base 1, an upper surface of the base 1 is snap-connected with a snap-connecting seat 8, an upper surface of the snap-connecting seat 8 is snap-connected with two mounting plates 7, a front surface of the mounting plate 7 is embedded with a driving coil 702, an upper surface of the snap-connecting seat 8 is snap-connected with a Hall sensor 701, an upper surface of the base 1 is embedded with a camera carrier 3 in a sliding connection, a position of the upper surface of the camera carrier 3 near the snap-connecting seat 8 is snap-connected with a Hall sensor magnet 5, a position of the upper surface of the camera carrier 3 near the snap-connecting seat 8 is snap-connected with two driving magnets 4, guide rails 2 are embedded and connected on both side surfaces of the camera carrier 3, an upper surface of the base 1 is snap-connected with an upper cover 9, a through groove 103 is provided on the upper surface of the base 1, and a flexible circuit board 6 is inserted into the through groove 103.

[0022] Specifically, when in use, the flexible circuit board 6 is used to transmit circuit control signals and Hall signals, the Hall sensor 701 is used to sense signals, and the drive coil 702 is used to receive signals to generate a magnetic field to move the drive magnet 4, so that the height of the camera carrier 3 in the base 1 changes to achieve the purpose of focusing. The Hall sensor magnet 5 is used to sense the Hall signal. This is a mature existing technology and no unnecessary elaboration is made in this article. When assembling the device, the flexible circuit board 6, the base 1, the mounting plate 7, the Hall sensor 701, the card seat 8, the camera carrier 3, the drive magnet 4, the Hall sensor magnet 5 and the upper cover 9 are installed from bottom to top in sequence. During installation, there is no need to repeatedly adjust the direction and angle of the base 1, and it is not easy to miss the installation, thereby improving the efficiency of the device assembly.

[0023] Embodiment 1

[0024] like Figure 1-3 As shown, a groove 102 is provided on the upper surface of the base 1, and the clamping seat 8 is inserted into the groove 102. A limiting groove 104 is provided on the inner surface of the base 1, and a No. 1 plug hole 105 is provided at the bottom end of the limiting groove 104. A through hole 201 is provided on the outer surface of the guide rail 2, and a ball 202 is rollingly connected inside the through hole 201.

[0025] In this embodiment, during installation, the flexible circuit board 6 is inserted into the through groove 103, and the flexible circuit board 6 is inserted into the interior of the snap-in socket 8, and the snap-in socket 8 is inserted into the groove 102. The snap-in socket 8 and the flexible circuit board 6 are initially limited, and then one end of the guide rail 2 is inserted into the No. 1 socket 105, and the camera carrier 3 is placed inside the base 1.

[0026] like Figure 3 As shown, sliding grooves 301 are provided on both side surfaces of the camera carrier 3, the ball bearings 202 and the sliding grooves 301 are rollingly connected, three snap-in grooves 801 are provided on the upper surface of the snap-in seat 8, and the mounting plate 7 and the Hall sensor 701 are both placed in the snap-in grooves 801.

[0027] In this embodiment, the camera carrier 3 contacts the ball 202 on the guide rail 2 when moving up and down to reduce the friction during movement. The mounting plate 7 and the Hall sensor 701 are installed on the clamping seat 8 from top to bottom.

[0028] like Figure 1-3 As shown, a card slot 302 is provided on the upper surface of the camera carrier 3 , a placement slot 303 is provided on the upper surface of the camera carrier 3 , the driving magnet 4 and the Hall sensor magnet 5 are placed in the placement slot 303 , and a card frame 304 is snap-connected inside the card slot 302 .

[0029] In this embodiment, the driving magnet 4 and the Hall sensor magnet 5 are installed in the placement groove 303 from top to bottom, and the clamping frame 304 is inserted, and the upper ends of the driving magnet 4 and the Hall sensor magnet 5 are limited by the clamping frame 304.

[0030] Embodiment 2

[0031] On the basis of the first embodiment, in order to make up for the problem that it is inconvenient to limit the upper end of the clamping seat in the first embodiment.

[0032] like Figure 2 As shown, a limiting hole 101 is provided on the upper surface of the base 1, an insertion column 901 is fixedly connected to the lower surface of the upper cover 9, the insertion column 901 is inserted into the limiting hole 101, a limiting cover 902 is fixedly connected to the lower surface of the upper cover 9, the limiting cover 902 is in contact with the mounting plate 7 and the upper end of the Hall sensor 701, a No. 2 socket 903 is provided on the lower surface of the upper cover 9, and the two ends of the guide rail 2 are respectively inserted into the No. 1 socket 105 and the No. 2 socket 903.

[0033] In this embodiment, during the last step of installation, the insertion column 901 is inserted into the limiting hole 101. This is a fool-proof design to facilitate the connection between the upper cover 9 and the base 1, and the connection position between the upper cover 9 and the base 1 needs to be glued. At this time, the limiting cover 902 automatically contacts the mounting plate 7 and the Hall sensor 701 to limit the mounting plate 7 and the Hall sensor 701. The upper cover 9 limits the upper end of the guide rail 2 through the No. 2 socket 903 to complete the installation of the device. There is no need to repeatedly adjust the direction of the base 1 and assemble parts from multiple directions. It is not easy to miss the installation, which facilitates the assembly of the device, makes the device structure simpler, and the product is easy to process and form.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dual-camera autofocus device, comprising a base (1), characterized in that: The upper surface of the base (1) is snap-connected with a snap-in seat (8), the upper surface of the snap-in seat (8) is snap-connected with two mounting plates (7), the front surface of the mounting plate (7) is embedded with a driving coil (702), the upper surface of the snap-in seat (8) is snap-connected with a Hall sensor (701), the upper surface of the base (1) is embedded with a camera carrier (3) in a sliding connection, the upper surface of the camera carrier (3) is snap-connected with a Hall sensor magnet (5) at a position close to the snap-in seat (8), the upper surface of the camera carrier (3) is snap-connected with two driving magnets (4) at a position close to the snap-in seat (8), the two side surfaces of the camera carrier (3) are embedded with guide rails (2), and the upper surface of the base (1) is snap-connected with an upper cover (9).

2. A dual-camera autofocus device according to claim 1, characterized in that: A limiting hole (101) is provided on the upper surface of the base (1), and an insertion column (901) is fixedly connected to the lower surface of the upper cover (9), and the insertion column (901) is inserted into the limiting hole (101).

3. The dual-camera auto-focus device according to claim 1, characterized in that: The upper surface of the base (1) is provided with a groove (102), the clamping seat (8) is inserted into the groove (102), the upper surface of the base (1) is provided with a through groove (103), and a flexible circuit board (6) is inserted into the through groove (103).

4. The dual-camera auto-focus device according to claim 1, characterized in that: The inner surface of the base (1) is provided with a limiting groove (104), the bottom end of the limiting groove (104) is provided with a No. 1 plug hole (105), the lower surface of the upper cover (9) is provided with a No. 2 plug hole (903), and the two ends of the guide rail (2) are respectively inserted into the No. 1 plug hole (105) and the No. 2 plug hole (903).

5. The dual-camera auto-focus device according to claim 1, characterized in that: The outer surface of the guide rail (2) is provided with a through hole (201), and a ball (202) is rollingly connected inside the through hole (201).

6. A dual-camera autofocus device according to claim 5, characterized in that: The two side surfaces of the camera carrier (3) are provided with sliding grooves (301), the balls (202) and the sliding grooves (301) are rollingly connected, the upper surface of the clamping seat (8) is provided with three clamping grooves (801), the mounting plate (7) and the Hall sensor (701) are both placed in the clamping grooves (801), and the lower surface of the upper cover (9) is fixedly connected with a limiting cover (902), and the limiting cover (902) is in contact with the upper ends of the mounting plate (7) and the Hall sensor (701).

7. The dual-camera auto-focus device according to claim 1, characterized in that: The upper surface of the camera carrier (3) is provided with a card slot (302), the upper surface of the camera carrier (3) is provided with a placement slot (303), the driving magnet (4) and the Hall sensor magnet (5) are placed in the placement slot (303), and the interior of the card slot (302) is snap-connected with a card-connecting frame (304).

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