Anti-shake motor and camera module

Abstract

The utility model relates to the technical field of optical image stabilization, and in particular to an image stabilization motor and a camera module, which include a fixing part, an image stabilization component and a focusing component, wherein the fixing part includes a base and an outer cover which cover each other, the image stabilization component is arranged on the base, a first driving IC and a second driving IC are arranged on the image stabilization component, the first driving IC and the second driving IC are connected in series with each other and are electrically connected to the base, the focusing component is arranged on the base, the focusing component is located between the base and an OIS movable part, a third driving IC is arranged on the focusing component, and the third driving IC is connected in series with the first driving IC and the second driving IC; thereby, the third driving IC is connected in series with the first driving IC and the second driving IC, and the power supply and signal lines which need to be conducted to the base are reduced to 4 pins by the series connection, thereby greatly reducing the conduction process and welding difficulty of the power supply and signal lines, thereby achieving the effect of improving welding yield and production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of optical anti-shake, and in particular to an anti-shake motor and a camera module. Background Art

[0002] At present, people's demand for camera functions of portable electronic devices (such as tablets, smart phones, etc.) is still increasing rapidly. In order to meet people's diverse requirements for camera imaging, anti-shake motors are usually added to camera modules to perform motion compensation on the camera modules during shooting, thereby improving the imaging quality.

[0003] Conventional anti-shake motors are divided into moving magnet type and moving coil type. The moving magnet anti-shake motor is limited by its own structure and is easily affected by external magnetic interference and nearby metal devices. The moving coil anti-shake motor can effectively avoid magnetic interference and the influence of metal devices. However, the dynamic coil design of the moving coil anti-shake motor requires that the power supply and signal lines of multiple coils are connected to the base and welded, which requires complicated process steps, resulting in a decrease in its welding yield and efficiency, which invisibly increases production costs and also reduces production efficiency.

[0004] It should be noted that the information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to a person skilled in the art. Utility Model Content

[0005] In order to solve the above-mentioned technical problem of complicated manufacturing process, the utility model provides an anti-shake motor, which includes a fixing part, wherein the fixing part includes a base and an outer cover covering each other;

[0006] An anti-shake component, the anti-shake component is arranged on the base, a first driver IC and a second driver IC are arranged on the anti-shake component, the first driver IC and the second driver IC are connected in series with each other and are electrically connected to the base;

[0007] A focusing assembly, wherein the focusing assembly is arranged on the base, the focusing assembly is located between the base and the anti-shake assembly, and a third driving IC is arranged on the focusing assembly, and the third driving IC is connected in series to the first driving IC and the second driving IC.

[0008] Furthermore, the anti-shake component includes an OIS movable part and four OIS magnets. The OIS movable part is arranged on the base. The OIS movable part can move relative to the base. The four OIS magnets are respectively fixed on the four side walls on the inner side of the outer cover.

[0009] Furthermore, the OIS movable part includes an OIS frame and an OIS soft board, the OIS frame is arranged on the base, the OIS frame can move relative to the base, the OIS soft board is attached to the OIS frame, the OIS soft board is electrically connected to the base, the first driver IC and the second driver IC are attached to the OIS soft board, and the first driver IC and the second driver IC are electrically connected to the OIS soft board.

[0010] Furthermore, four OIS coils are attached to the OIS soft board at positions corresponding to the four OIS magnets, and the four OIS coils are electrically connected to the OIS soft board.

[0011] Furthermore, the anti-shake motor also includes a spring sheet, which is arranged on the OIS frame. The OIS soft board has a welding part. The OIS soft board is electrically connected to the spring sheet through the welding part, and the spring sheet is electrically connected to the base through a suspension wire.

[0012] Furthermore, the focusing assembly includes an AF movable part and four AF magnets, the AF movable part is arranged on the base, the AF movable part is located between the base and the OIS frame, the AF movable part can move relative to the base and the OIS frame, and the four AF magnets are fixed on the base.

[0013] Furthermore, the AF movable part includes a lens mount and an AF coil, the lens mount is arranged on the base, the lens mount is located between the base and the OIS frame, the lens mount can move relative to the base and the OIS frame, the AF coil is connected to the lens mount, and the four AF magnets are located directly below the AF coil.

[0014] Further, the third driving IC is disposed on the AF coil, and the third driving IC is electrically connected to the AF coil.

[0015] Furthermore, an embedded component is provided in the lens holder, one end of the embedded component is electrically connected to the spring sheet, and the other end of the embedded component is electrically connected to the third driver IC.

[0016] The utility model also provides a camera module, comprising at least one anti-shake motor as described in any one of the above items.

[0017] Based on the above, the anti-shake motor and camera module provided by the utility model, compared with the prior art, connect the third driver IC in series with the first driver IC and the second driver IC. The series connection reduces the power and signal lines that need to be conducted to the base to 4 pins, greatly reducing the conduction process and welding difficulty of the power and signal lines, thereby achieving the effect of improving the welding yield and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. The positional relationship described in the drawings in the following description is based on the direction of the components in the drawings unless otherwise specified.

[0019] Figure 1 A schematic diagram of the structure of an anti-shake motor provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the exploded structure of an anti-shake motor provided in one embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of an anti-shake assembly provided in one embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the structure of an OIS soft board and a spring provided in one embodiment of the utility model;

[0023] Figure 5 A schematic structural diagram of a focusing assembly provided in one embodiment of the utility model.

[0024] Reference numerals:

[0025] 10-fixed part 20-anti-shake component 30-spring

[0026] 40- welding part 50- hanging wire 60- focusing assembly

[0027] 70-embedded part 11-base 12-outer cover

[0028] 21-OIS movable part 22-OIS magnet 23-OIS coil

[0029] 24- first driver IC 25- second driver IC 61- AF movable part

[0030] 62-AF magnet 63-third driver IC 211-OIS frame

[0031] 212-OIS soft board 611-lens holder 612-AF coil DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0033] In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof all mean "at least including".

[0034] In order to clearly and unambiguously explain the technical solution of this application, the "driver IC" is first explained. Each "driver IC" has 6 pins of power and signal lines, of which 2 pins are internal pins, connected to both ends of the coil to drive the coil; 4 pins are external pins, all of which need to be connected to the base for welding. Usually, there are 3 driver ICs, that is, a total of 12 pins of power and signal lines need to be connected to the base and welded.

[0035] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of an anti-shake motor provided by an embodiment of the utility model; Figure 2 A schematic diagram of the exploded structure of an anti-shake motor provided in one embodiment of the utility model.

[0036] In order to solve the above-mentioned technical problem of complicated process steps, or to achieve at least one of the above-mentioned advantages or other advantages, an embodiment of the utility model provides an anti-shake motor. As shown in the figure, the anti-shake motor includes a fixing part 10, and the fixing part 10 includes a base 11 and an outer cover 12 that cover each other. The base 11 is pre-embedded with power and signal pins, which can be connected to an external PCB to supply energy to the entire anti-shake motor.

[0037] Please combine Figure 2 See also Figure 3 , the anti-shake assembly 20 is arranged on the base 11. In a specific implementation, as shown in the figure, the anti-shake assembly 20 includes an OIS movable part 21 and four OIS magnets 22. The OIS movable part 21 is arranged on the base 11, and the OIS movable part 21 can move relative to the base 11 along the X-axis and / or the Y-axis.

[0038] The four OIS magnets 22 are respectively fixed on the four inner side walls of the outer cover 12. Preferably, the four OIS magnets 22 are bonded on the four inner side walls of the outer cover 12 by glue.

[0039] Specifically, the OIS movable part 21 includes an OIS frame 211 and an OIS soft board 212. The OIS frame 211 can move along the X-axis and / or Y-axis relative to the base 11. The OIS soft board 212 is attached to the OIS frame 211. Four OIS coils 23 are attached to the OIS soft board 212 at positions relative to the four OIS magnets 22. The four OIS coils 23 are electrically connected to the OIS soft board 212, and the four OIS coils 23 are connected in series through the OIS soft board 212. When the OIS coil 23 is energized, a magnetic field is generated between it and the OIS magnet 22, which can push the OIS frame 211 to move in the X-axis and / or Y-axis direction, thereby achieving the effect of anti-shake and improving imaging quality.

[0040] It is understandable that the number of OIS magnets 22 and OIS coils 23 is not fixed and can be set according to actual production standard requirements, as long as the OIS frame 211 can move along the X-axis and / or Y-axis. This case does not limit this.

[0041] On the basis of the above, the first driver IC 24 and the second driver IC 25 are provided on the OIS soft board 212. In specific implementation, the first driver IC 24 and the second driver IC 25 are respectively attached to the OIS coil 23, and are respectively used to monitor and control the X-axis movement and the Y-axis movement of the OIS frame 211. Preferably, the first driver IC 24 and the second driver IC 25 are connected in series through the OIS soft board 212. By connecting the 8-pin power and signal lines in series, the conduction process and welding difficulty of the power and signal lines are greatly reduced.

[0042] Please combine Figure 2 , Figure 3 See also Figure 4 In some preferred embodiments, as shown in the figure, the anti-shake motor further includes a spring sheet 30, which is disposed on the OIS frame 211. In a specific implementation, there are four spring sheets 30, and the four spring sheets 30 are independent of each other. The OIS soft board 212 has four welding parts 40, and the four spring sheets 30 are electrically connected to the OIS soft board 212 through the four welding parts 40. Furthermore, the spring sheet 30 is electrically connected to the base 11 through the suspension wire 50, thereby conducting the power supply and signal lines of the OIS soft board 212 to the base 11.

[0043] Please combine Figure 2 See also Figure 5 , the focusing assembly 60 is disposed on the base 11. In a specific implementation, as shown in the figure, the focusing assembly 60 includes an AF movable part 61 and four AF magnets 62. The AF movable part 61 is disposed on the base 11 and is located between the base 11 and the OIS frame 211. The AF movable part 61 can move relative to the base 11 and the OIS frame 211 along the Z axis.

[0044] Specifically, the AF movable part 61 includes a lens holder 611 and an AF coil 612. The lens holder 611 is located between the base 11 and the OIS frame 211, and the lens holder 611 can move along the Z axis relative to the base 11 and the OIS frame 211. The AF coil 612 is connected to the lens holder 611. Four AF magnets 62 are respectively fixed to the edges of the base 11 and are located directly below the AF coil 612.

[0045] A third driving IC 63 is provided on the AF coil 612 for monitoring and controlling the Z-axis movement of the lens holder 611. When the AF coil 612 is powered on, a magnetic field is generated between it and the AF magnet 62, which can push the lens holder 611 to move in the Z-axis direction, thereby achieving the effect of focusing and improving the imaging quality.

[0046] On the basis of the above, an embedded component 70 is provided in the lens holder 611. In a specific implementation, the number of the embedded components 70 is 4, one end of each of the 4 embedded components 70 is electrically connected to the spring 30, and the other end of each embedded component 70 is electrically connected to the third driving IC 63.

[0047] The third driver IC63 is connected in series with the first driver IC24 and the second driver IC25 through the embedded part 70. The 12-pin power and signal lines are reduced to 4-pin power and signal lines through the series connection, which greatly reduces the conduction process and welding difficulty of the power and signal lines, and improves the welding yield and production efficiency.

[0048] In some preferred embodiments, the utility model also provides a camera module, comprising at least one anti-shake motor as described above.

[0049] To sum up, compared with the prior art, the anti-shake motor and camera module provided by the utility model connect the third driver IC in series with the first driver IC and the second driver IC. The series connection reduces the power supply and signal lines that need to be conducted to the base to 4 pins, greatly reducing the conduction process and welding difficulty of the power supply and signal lines, thereby achieving the effect of improving the welding yield and production efficiency.

[0050] Although the terms such as OIS movable part, AF movable part, embedded part, etc. are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0051] In addition, those skilled in the art should understand that, although there are many problems in the prior art, each embodiment or technical solution of the utility model can be improved in only one or several aspects, without having to solve all the technical problems listed in the prior art or background technology at the same time. Those skilled in the art should understand that the content not mentioned in a claim should not be used as a limitation on the claim.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An anti-shake motor, characterized in that: include A fixing part, the fixing part comprising a base and an outer cover covering each other; An anti-shake component, the anti-shake component is arranged on the base, a first driver IC and a second driver IC are arranged on the anti-shake component, the first driver IC and the second driver IC are connected in series with each other and are electrically connected to the base; A focusing assembly, wherein the focusing assembly is arranged on the base, the focusing assembly is located between the base and the anti-shake assembly, and a third driving IC is arranged on the focusing assembly, and the third driving IC is connected in series to the first driving IC and the second driving IC.

2. The anti-shake motor according to claim 1, characterized in that: The anti-shake component includes an OIS movable part and four OIS magnets. The OIS movable part is arranged on the base. The OIS movable part can move relative to the base. The four OIS magnets are respectively fixed on the four side walls on the inner side of the outer cover.

3. The anti-shake motor according to claim 2, characterized in that: The OIS movable part includes an OIS frame and an OIS soft board, the OIS frame is arranged on the base, the OIS frame can move relative to the base, the OIS soft board is attached to the OIS frame, the OIS soft board is electrically connected to the base, the first driver IC and the second driver IC are attached to the OIS soft board, and the first driver IC and the second driver IC are electrically connected to the OIS soft board.

4. The anti-shake motor according to claim 3, characterized in that: Four OIS coils are attached to the OIS soft board at positions corresponding to the four OIS magnets, and the four OIS coils are electrically connected to the OIS soft board.

5. The anti-shake motor according to claim 3, characterized in that: The anti-shake motor also includes a spring sheet, which is arranged on the OIS frame. The OIS soft board has a welding portion, the OIS soft board is electrically connected to the spring sheet via the welding portion, and the spring sheet is electrically connected to the base via a suspension wire.

6. The anti-shake motor according to claim 5, characterized in that: The focusing assembly includes an AF movable part and four AF magnets. The AF movable part is arranged on the base. The AF movable part is located between the base and the OIS frame. The AF movable part can move relative to the base and the OIS frame. The four AF magnets are fixed on the base.

7. The anti-shake motor according to claim 6, characterized in that: The AF movable part includes a lens mount and an AF coil, wherein the lens mount is disposed on the base, the lens mount is located between the base and the OIS frame, the lens mount can move relative to the base and the OIS frame, the AF coil is connected to the lens mount, and the four AF magnets are located below the AF coil.

8. The anti-shake motor according to claim 7, characterized in that: The third driving IC is disposed on the AF coil, and the third driving IC is electrically connected to the AF coil.

9. The anti-shake motor according to claim 7 or 8, characterized in that: An embedded component is provided in the lens holder, one end of the embedded component is electrically connected to the spring, and the other end of the embedded component is electrically connected to the third driving IC.

10. A camera module, characterized in that: Contains at least one anti-shake motor as described in any one of claims 1-9.

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