Image pickup driving device and electronic apparatus

Abstract

The utility model provides a camera shooting driving device and electronic equipment, and relates to the field of electronic equipment camera shooting. The camera shooting driving device comprises a lens carrier, a guiding assembly, a base, a driving assembly and an electric connecting piece, the driving assembly is arranged between the lens carrier and the base, the driving assembly is electrically connected with the electric connecting piece, the lens carrier and the base are correspondingly provided with guiding grooves respectively, the guiding assembly is arranged in the guiding grooves, and the driving assembly is electrically connected with the electric connecting piece. The driving assembly drives the lens carrier to move by means of the guiding assembly. According to the technical scheme, friction force is small, small-current driving can be achieved, and therefore power consumption is reduced; parts can be reduced, the assembly precision and efficiency are improved, and the reliability and the impact strength are better.

Description

Technical Field

[0001] The present application relates to the field of electronic equipment photography, and in particular to a photography driving device and electronic equipment. Background Art

[0002] In recent years, optical imaging technology has been widely used in camera modules of electronic devices (information devices) such as smart phones. Some electronic devices with camera or video functions are usually equipped with optical element driving devices to drive optical components such as lenses to move, thereby achieving the function of autofocus. People's requirements for image quality are increasing, so the driving function of lens modules (optical elements) is becoming increasingly important.

[0003] In the prior art, the guide structure for the movement in the direction of autofocus usually adopts the form of sliding friction, such as balls, guide rods, etc. In actual application, this type of guide structure often has a large friction force, requires a larger driving force during movement, and has a certain risk of getting stuck, and the assembly accuracy requirements are also relatively high. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a camera drive device and an electronic device to solve the problems in the prior art that the guide structure adopts sliding friction, which brings about greater friction, requires greater driving force during movement, and has certain risks.

[0005] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0006] In a first aspect, the present application provides a camera driving device, comprising: a lens carrier, a guide assembly, a base, a driving assembly and an electrical connector, wherein a driving assembly is disposed between the lens carrier and the base, the driving assembly is electrically connected to the electrical connector, the lens carrier and the base are respectively provided with guide grooves, the guide assembly is disposed in the guide grooves, and the driving assembly drives the lens carrier to move by means of the guide assembly;

[0007] Wherein, the guide assembly includes a first guide member, the first guide member includes at least one row of first balls and at least one first guide rod, and the first balls and the first guide rod are abutted in the guide groove.

[0008] In some modified implementations of the first aspect of the present application, an extension platform is provided at one end of the base, the electrical connector is connected to the extension platform, first guide grooves are respectively provided at both ends of the extension platform, a second guide groove corresponding to the first guide groove is provided on the lens carrier, and a guide assembly is abutted between the first guide groove and the second guide groove.

[0009] In some modified implementations of the first aspect of the present application, the first guide rod is disposed in the first guide groove of the base, and the first ball is disposed in the second guide groove of the lens carrier, so that the first ball abuts against the first guide rod.

[0010] In some modified implementations of the first aspect of the present application, the first ball is arranged parallel to the first guide rod.

[0011] In some modified embodiments of the first aspect of the present application, the guide assembly also includes a second guide member, which is a second ball or a second guide rod, and the second ball or the second guide rod abuts between the first guide groove and the second guide groove.

[0012] In some modified implementations of the first aspect of the present application, the first guide groove is a V-shaped groove, and the second guide groove is a planar groove or a V-shaped groove.

[0013] In some modified implementations of the first aspect of the present application, the driving assembly includes a driving magnet and a driving coil, the driving magnet is disposed on the lens carrier, the driving coil is disposed on the base and is electrically connected to the electrical connector, and the driving magnet and the driving coil are disposed correspondingly.

[0014] In some modified implementations of the first aspect of the present application, it also includes: a protective shell, which is buckled on the base to form a accommodating space.

[0015] In some modified implementations of the first aspect of the present application, anti-collision bosses are provided at the four corners of a side surface of the lens carrier close to the protective shell.

[0016] A second aspect of the present application provides an electronic device, characterized in that it includes the camera driving device as described above.

[0017] Compared with the prior art, the first ball and the first guide rod of the technical solution of the present application form a sliding shaft, and rolling friction is used instead of sliding friction in the prior art. The friction of the guide component is small, and low current drive can be achieved, thereby reducing power consumption;

[0018] In addition, this technical solution can reduce parts, improve assembly accuracy and efficiency, and have better reliability and impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0020] Figure 1 The exploded structure diagram of the camera driving device in the first embodiment is schematically shown;

[0021] Figure 2 The structure diagram of the camera driving device in the first embodiment is schematically shown;

[0022] Figure 3 The top view of the camera driving device without the protective cover in the first embodiment is schematically shown;

[0023] Figure 4 The structure diagram of the connection between the lens carrier and the driving magnet in the first embodiment is schematically shown;

[0024] Figure 5 The schematic diagram of the structure of the connection between the base, the electrical connector and the driving coil in the first embodiment is shown schematically;

[0025] Figure 6 The schematic diagram of the structure of the connection between the base and the guide assembly in the first embodiment is shown schematically;

[0026] Figure 7 The structure diagram of the connection between the lens carrier and the guide assembly in the first embodiment is schematically shown;

[0027] Figure 8 The schematic diagram of the structure of the first guide member in the first embodiment is shown schematically;

[0028] Fig. 9 The structure diagram of the lens carrier in the first embodiment is schematically shown;

[0029] Fig.10 The schematic diagram of the structure of the base in the first embodiment is shown schematically;

[0030] Fig.11 The exploded structure diagram of the camera driving device in the second embodiment is schematically shown;

[0031] Fig.12 The exploded structure diagram of the camera driving device in the third embodiment is schematically shown;

[0032] Fig.13 The exploded structure diagram of the camera driving device in the fourth embodiment is schematically shown.

[0033] Description of Figure Numbers:

[0034] 1. Lens carrier; 11. Second guide groove; 12. Anti-collision boss; 2. Guide assembly; 21. First guide member; 211. First ball; 212. First guide rod; 22. Second guide member; 221. Second ball; 222. Second guide rod; 3. Base; 31. Extension platform; 311. First guide groove; 4. Drive assembly; 41. Drive magnet; 42. Drive coil; 5. Electrical connector; 6. Protective shell. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs. Embodiment 1

[0037] like Figures 1 to 10 As shown, the first embodiment provides a camera driving device, including: a lens carrier 1, a guide assembly 2, a base 3, a driving assembly 4, an electrical connector 5 and a protective shell 6, the protective shell 6 is buckled on the base 3 to form an accommodating space, the lens carrier 1 is arranged in the accommodating space, the driving assembly 4 is arranged between the lens carrier 1 and the base 3, the driving assembly 4 is electrically connected to the electrical connector 5, the lens carrier 1 and the base 3 are respectively provided with guide grooves, the guide assembly 3 is arranged in the guide grooves, and the driving assembly 4 drives the lens carrier 1 to roll and move in the guide grooves with the help of the guide assembly 3; wherein the electrical connector 5 is an FPCB circuit board.

[0038] like Figure 5 , Fig.10 As shown, in a specific implementation, an extension platform 31 is provided at one end of the base 3, a hollow portion is provided on the extension platform 31, an electrical connector 5 is provided on the hollow portion, first guide grooves 311 are provided at both ends of the extension platform 31 close to the lens carrier 1, a second guide groove 11 corresponding to the first guide groove 311 is provided on the lens carrier 1, and a guide assembly 2 is abutted between the first guide groove 311 and the second guide groove 11.

[0039] like Figure 6 , Figure 7 , Figure 8As shown, in a specific implementation, the guide assembly 2 includes a first guide member 21 and a second guide member 22. The first guide member 21 is a sliding shaft, including two rows of first balls 211 and a first guide rod 212. The first guide rod 212 is disposed in the first guide groove 311 of the base 3, and the two rows of first balls 211 are disposed in the second guide groove 11 of the lens carrier 1, so that the first balls 211 abut against the first guide rod 212; the second guide member 22 is a second ball 221, and the second ball 221 abuts between the first guide groove 311 and the second guide groove 11;

[0040] Among them, the first ball 211 is arranged in parallel with the first guide rod 212 and the second ball 221, and the distance between the two rows of first balls 211 is smaller than the diameter of the first guide rod 212; the second guide groove 11 on the lens carrier 1 where the first guide member 21 is placed and the first guide groove 311 on the base 3 are both V-shaped grooves, the second guide groove 11 on the lens carrier 1 where the second guide member 22 is placed is a flat groove, and the first guide groove 311 on the base 3 where the second guide member 22 is placed is a V-shaped groove.

[0041] Specifically, the driving assembly 4 includes a driving magnet 41 and a driving coil 42 . The driving magnet 41 is disposed on the lens carrier 1 , and the driving coil 42 is disposed on the base 3 and electrically connected to the electrical connector 5 . The driving magnet 41 and the driving coil 42 are disposed correspondingly.

[0042] like Figure 1 , Figure 7 As shown, in a specific implementation, anti-collision bosses 12 are provided at the four corners of a side surface of the lens carrier 1 close to the protective shell 6 to prevent the lens carrier 1 from colliding and causing damage during movement. Embodiment 2

[0043] like Fig.11 As shown, the second embodiment provides a camera driving device. The difference between the second embodiment and the first embodiment is that the first guide member 21 includes a row of first balls 211 and two first guide rods 212. The first balls 211 are arranged in the second guide groove 11 of the lens carrier 1, and the two first guide rods 212 are arranged in the first guide groove 311 of the base 3. The second guide member 22 is a second ball 221; wherein the distance between the two first guide rods 212 is smaller than the diameter of the first ball 211; and the rest of the parts are exactly the same as those of the first embodiment. Embodiment 3

[0044] like Fig.12 As shown, this third embodiment provides a camera driving device. The difference between this embodiment and the first embodiment is that the second guide member 22 is a second guide rod 222, and the second guide rod 222 abuts between the first guide groove 311 and the second guide groove 11; the rest of the parts are exactly the same as those of the first embodiment. Embodiment 4

[0045] like Fig.13 As shown, this fourth embodiment provides a camera driving device. The difference between this embodiment and the second embodiment is that the second guide member 22 is a second guide rod 222, and the second guide rod 222 abuts between the first guide groove 311 and the second guide groove 11, and the rest of the parts are exactly the same as those of the second embodiment.

[0046] Working principle:

[0047] The FPCB circuit board receives the electrical signal and transmits the electrical signal to the driving coil 42. After the driving coil 42 is energized, it interacts with the driving magnet 41 to generate the Lorentz force, thereby driving the lens carrier 1 to move along the Z-axis direction with the help of the rolling of the guide component 2 in the guide groove to complete the focusing. Embodiment 5

[0048] The fifth embodiment provides an electronic device, including the camera driving device as described in any one of the first, second, third and fourth embodiments.

[0049] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A camera driving device, characterized in that: include: A lens carrier, a guide assembly, a base, a drive assembly and an electrical connector, wherein a drive assembly is provided between the lens carrier and the base, the drive assembly is electrically connected to the electrical connector, the lens carrier and the base are respectively provided with guide grooves, the guide assembly is provided in the guide grooves, and the drive assembly drives the lens carrier to move with the aid of the guide assembly; Wherein, the guide assembly includes a first guide member, the first guide member includes at least one row of first balls and at least one first guide rod, and the first balls and the first guide rod are abutted in the guide groove.

2. The imaging driving device according to claim 1, wherein: An extension platform is provided at one end of the base, the electrical connector is connected to the extension platform, first guide grooves are provided at both ends of the extension platform, a second guide groove corresponding to the first guide groove is provided on the lens carrier, and a guide assembly is abutted between the first guide groove and the second guide groove.

3. The imaging driving device according to claim 2, wherein: The first guide rod is arranged in the first guide groove of the base, and the first ball is arranged in the second guide groove of the lens carrier, so that the first ball abuts against the first guide rod.

4. The imaging driving device according to claim 3, wherein: The first rolling ball is arranged parallel to the first guide rod.

5. The imaging driving device according to claim 3, wherein: The guide assembly further includes a second guide member, which is a second ball or a second guide rod, and the second ball or the second guide rod abuts between the first guide groove and the second guide groove.

6. The imaging driving device according to claim 5, wherein: The first guide groove is a V-shaped groove, and the second guide groove is a planar groove or a V-shaped groove.

7. The imaging driving device according to claim 1, wherein: The driving assembly includes a driving magnet and a driving coil. The driving magnet is arranged on the lens carrier, and the driving coil is arranged on the base and electrically connected to the electrical connector. The driving magnet and the driving coil are arranged correspondingly.

8. The imaging driving device according to claim 1, wherein: Also includes: A protective shell is buckled on the base to form a receiving space.

9. The imaging driving device according to claim 8, wherein: Anti-collision bosses are provided at four corners of a side surface of the lens carrier close to the protective shell.

10. An electronic device, characterized in that: The invention comprises the camera driving device as claimed in any one of claims 1 to 9.

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