CN214675372U - Coil direct winding structure for miniature sensor anti-shake motor - Google Patents

Abstract

The application discloses coil directly winds structure for miniature sensor anti-shake motor, including the sensor support that is used for installing photosensitive element, sensor support includes the support body, the lateral wall position of support body is central symmetry and is provided with four coil unit, and arbitrary coil unit all includes directly around the structure, with directly around structure integrated into one piece and be located the photosensitive element installation side and be used for bearing the winding post of coil. The utility model adopts the direct winding structure, which can reduce the assembly difficulty of the coil, ensure the consistency of the coil and the photosensitive element, and improve the controllable precision of anti-shake; meanwhile, the detachable direct winding structure can enable the coil to be mounted more conveniently, the manufacturing and assembling difficulty is lower, and the structure is more compact.

Description

Coil direct winding structure for miniature sensor anti-shake motor

Technical Field

The utility model relates to a OIS motor technical field especially relates to sensor shift OIS motor technical field, concretely relates to coil directly around structure for micro sensor anti-shake motor.

Background

At present, a micro camera adopted by a smart phone is a main application field of a high-end anti-shake camera technology, and as for the prior art, as a typical solution of the high-end technology in the field, a Sensor-Shift technology is adopted to replace a currently carried common OIS optical anti-shake technology, so that the effect of capturing the dynamic state of the camera is improved, and before that, the most OIS optical anti-shake schemes adopted on smart phone products are realized by correcting the angle through a VCM motor driving lens. However, such a scheme has drawbacks of large power consumption, limited anti-shake effect, large product volume, high unit price and the like for a long time. With the more and more abundant scenes photographed by the mobile phone, the anti-shake requirements are more and more, that is, the improvement of the photographing effect of the smart phone in the scene of motion photography is inevitable; in addition, the control of terminal brands on the product cost of parts is also more and more severe, and the OIS cannot be popularized in some flat-price mobile phones due to the high cost. Finally, the VCM motor with OIS function has a large volume, which is contrary to the requirement of terminal brand for light and thin overall appearance, and the Sensor-Shift technique can avoid the problem. In summary, it can be seen that the implementation of the Sensor-Shift technique is expected to bring improvements in more detail to the mobile terminal products. With the new Sensor-Shift technology, it is possible to realize the image Sensor by means of MEMS OIS, and the main feature is that the relevant components are located at the bottom of the CMOS image Sensor, which can move the image Sensor very quickly and accurately in the X/Y direction.

The adoption of the Sensor-Shift technology not only adds some more precise parts, but also has a complex assembly process different from the traditional process, has great challenges for manufacturers such as FPC, modules and the like, and solves a great number of technical problems in precise assembly, so that the related manufacturing, especially the assembly problem, is a great obstacle of the current Sensor-Shift technology.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of large volume and high power consumption of the conventional OIS technology, a Sensor-Shift anti-shake technology is adopted for replacing, the Sensor-Shift anti-shake technology is used in the structure realization process, and great manufacturing and assembling difficulties exist. A set of complete Sensor-Shift anti-shake motor contains a plurality of structural component and complicated assembly, and this application mainly improves to Sensor anti-shake motor's coil installation and arrangement structure to make can realize convenient purpose of making, assembling and anti-shake in very compact structure.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides a coil directly winds structure for miniature sensor anti-shake motor, includes the sensor support that is used for installing photosensitive element, the sensor support includes the support body, the lateral wall position of support body is central symmetry and is provided with four coil unit, and arbitrary coil unit all includes directly winds the structure, with directly wind structure integrated into one piece and lie in the photosensitive element installation side and be used for bearing the winding post of coil. Before setting forth the structure and principles, the applicant first briefly describes the use of a winding structure in order to more intuitively understand the specifics of the present solution as follows: the direct winding structure described in the present technical solution is a physical structure for mounting and supporting the photosensitive element, which is also often referred to in the art as an imaging plate or an imaging sensor. The coil unit is a structural unit which generates magnetic force after being electrified, the coil is directly wound on the winding column, the winding shape and the winding direction of the coil are determined according to the magnet interacting with the coil, and the coil unit can be designed in various shapes and sizes during actual design or application. The overall appearance of the coil in this application is preferably of an elongated design. The coil unit is installed on the support body, and simultaneously, photosensitive element also installs on the support body, and the magnetite interact that produces magnetic force when coil unit circular telegram and in the anti-shake motor can drive whole support body and take place the appointed displacement of corresponding direction, because it has accurate, quick travel's advantage, improvement photosensitive element's that can be very big controllability for adopt this kind of mode can be to reaching the anti-shake effect that surpasses expected. The present disclosure provides a brand new mechanism for carrying a photosensitive unit and realizing anti-shake function, so as to meet the requirement of anti-shake function, and at the same time, overcome the technical problems in manufacturing and equipment, and the technical problems and the beneficial technical effects of the coil direct winding are as follows:

the problem that high temperature needs to be overcome by adopting an embedded coil in the prior art can be solved by adopting a coil direct winding mode. The diameter of the anti-shake motor coil is very small, typically on the order of microns; therefore, although the compact structure volume can be achieved by using the high-temperature hot-melt injection molding coil, great difficulty exists in the manufacturing process and technology. For example, during high temperature injection molding, the micron-sized insulation on the coil surface may be damaged or broken down, which may cause the coil to open and fail. If the coil is arranged independently, if a cost coil product is adopted for installation, consistency of the coil and the bracket body cannot be guaranteed; and secondly, installation errors are increased, so that the anti-shake precision control is greatly reduced.

This scheme adopts four coil unit that are central symmetry and set up to make the effort to its body can calculate, control more easily for arbitrary one or more coil unit can be more controllable to the direction of motion of support body when carrying out alone or the joint action usefulness, and the anti-shake effect that obtains is more directly perceived.

For the control of the convenient and anti-shake precision of further compatible installation, preferably, be central symmetry on the support body and be provided with four second installation chambeies, arbitrary all can be connected with in the second installation intracavity the coil unit. The coil unit has the advantages of being detachable from the bracket body:

A. the manufacturing difficulty of the bracket body can be greatly reduced, and the precision control is improved;

B. can assemble alone to the coil unit, ensure coil unit's wholeness and assemblability to and the coil sets up with the electricity of directly winding the structure, avoided the inconvenient problem of operation that the installation coil brought on whole support body. Because the support body is provided with four coils and the size of the support body is very small, the coil units are independently assembled and then are arranged in the second installation cavity in a clamping manner, so that the assembly difficulty can be greatly reduced.

In order to further improve the integration level and optimize the structural compactness, preferably, the number of the winding columns is two, and the two winding columns are respectively and fixedly arranged at positions of the straight winding structure close to the two ends, and a hall sensor is further mounted between the two winding columns on the straight winding structure.

Preferably, a metal conductor used for being connected with the coil and the Hall sensor to form an electric connection structure is further embedded in the direct winding structure, and the metal conductor is provided with a plurality of contacts used for wiring connection. The metal conductors are flexibly arranged according to the position of the actual electrifying structure, so that the electrifying requirement of each component can be met on the premise of utilizing the existing structure, and the metal conductors do not need to be additionally connected through an FPC (flexible printed circuit) flat cable.

As a further preferable technical solution, the metal conductor has a spatial multilayer structure connected with each other, and the contacts are distributed on the upper surface, the lower surface and the side surfaces of the direct winding structure.

In order to further optimize the structure of the holder body even more so that the coil unit has a higher degree of matching during assembly, it is preferable that the total height of the coil unit in a direction perpendicular to the plane in which the photosensitive element is located is greater than or equal to the thickness of the holder body.

Preferably, the bracket body is provided with a first mounting cavity for mounting the photosensitive element.

Has the advantages that:

the utility model adopts the direct winding structure, which can reduce the assembly difficulty of the coil, ensure the consistency of the coil and the photosensitive element, and improve the controllable precision of anti-shake; meanwhile, the detachable direct winding structure can enable the coil to be mounted more conveniently, the manufacturing and assembling difficulty is lower, and the structure is more compact.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is an exploded view of an anti-shake camera structure incorporating the subject application;

fig. 2 is a top view of the present invention;

FIG. 3 is a perspective isometric view of FIG. 2;

FIG. 4 is a perspective isometric view of the stent body;

fig. 5 is a perspective view of the coil unit.

In the figure: 1-an outer shell; 2-front suspension wire spring; 3-a lens assembly; 4-a lens holder; 5-a carrier; 6-a magnet; 7-rear suspension wire spring; 8-a sensor holder; 9-FPC soft board; 10-a base plate;

81-a stent body; 82-a first mounting cavity; 83-a second mounting cavity; 84-a coil unit; 85-coil;

841-direct winding structure; 842-a metal conductor; 843-contacts; 844-winding column; 845-hall sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

this embodiment is directed to the necessary application environment introduction of this application, and before describing the specific structure of the present invention in detail, the function and unique point of the structure provided in this application are convenient to understand quickly and accurately. First, the applicant introduces one of the application scenarios of the coil direct-winding structure described in the present application, which aims to disclose the function and the operation principle of the present invention in a Sensor-Shift OIS camera.

As shown in fig. 1, the anti-shake camera structure with a coil direct winding structure according to the present application is an exploded view, and sequentially includes an outer housing 1 along an entering direction of a camera light path; a front suspension wire spring 2; a lens assembly 3; a lens holder 4; a carrier 5; a magnet 6; a rear suspension spring 7; a sensor holder 8; FPC flexible boards 9 and 10 are provided. The utility model discloses a be the structure of sensor support 8 and the specific mode of setting of coil 85 promptly.

The lens assembly 3 is connected with the lens support 4 through the front suspension spring 2 and the rear suspension spring 7 to form a core lens anti-shake structure. Sensor support 8 is connected with carrier 5 or shell body 1 through a set of solitary suspension spring and is formed sensor support 8's anti-shake structure, because photosensitive element fixed mounting forms sensor anti-shake structure on sensor support 8 promptly. The magnet 6 cooperates with a plurality of coils arranged inside the whole anti-shake camera to generate force, so as to provide driving force required by anti-shake.

Example 2:

the embodiment specifically provides a coil directly around structure for miniature sensor anti-shake motor, as shown in fig. 2-5, including the sensor support 8 that is used for installing photosensitive element, sensor support 8 includes support body 81, the lateral wall position of support body 81 is central symmetry and is provided with four coil unit 84, and arbitrary coil unit 84 all includes directly around structure 841, with directly around structure 841 integrated into one piece and be located the winding post 844 that photosensitive element installation side is used for bearing coil 85, coil unit 84 is holistic injection moulding structure, does not have zero dispersibility and detachability, coil 85 forms overall structure through gluing etc. mode and directly around structure 841 to the installation is convenient for, and it is shown in fig. 5 to detail. Before describing the structure and principles, in order to more intuitively understand the features of the present invention, applicants first briefly describe the use of the winding structure 841 as follows: the direct wound structure 841 described in this embodiment is a physical structure for mounting and supporting the photosensitive element, which is also often referred to in the art as an imaging plate or imaging sensor. The coil unit 84 is a structural unit that generates a magnetic force when energized, the coil 85 is directly wound around the winding post 844, a winding shape and a winding direction of the coil 85 are determined according to a magnet interacting with the coil 85, and various shapes and sizes may be designed in actual design or application. The overall appearance of the coil 85 in this application is preferably of an elongated design. Coil unit 84 installs on support body 81, and simultaneously, photosensitive element also installs on support body 81, and magnet 6 interact in coil unit 84 circular telegram production magnetic force and the anti-shake motor can drive whole support body 81 and take place the appointed displacement of corresponding direction, because it has accurate, quick travel's advantage, improvement photosensitive element's controllability that can be very big for adopt this kind of mode can be to reaching the unexpected anti-shake effect. The present disclosure provides a brand new mechanism for carrying a photosensitive unit and realizing anti-shake function, so as to meet the requirement of anti-shake function, and at the same time, overcome the technical problems in manufacturing and equipment, and the technical problems and the beneficial technical effects of the coil direct winding are as follows:

the direct winding of the coil 85 can avoid the problem that high temperature needs to be overcome by using an embedded coil in the prior art. The diameter of the anti-shake motor coil 85 is very small, typically on the order of microns; therefore, although the compact structure volume can be achieved by using the high-temperature hot-melt injection molding coil, great difficulty exists in the manufacturing process and technology. Such as during high temperature injection molding, the micron-sized surface insulation of the coil 85 may be damaged or broken, which may cause the coil 85 to open and fail. If the coil 85 is separately arranged, if a cost coil product is adopted for installation, consistency of the coil 85 and the bracket body 81 cannot be guaranteed; and secondly, installation errors are increased, so that the anti-shake precision control is greatly reduced.

The four coil units 84 that this scheme adoption was central symmetry and sets up make the effort to house body 81 calculate more easily, control for arbitrary one or more coil units 84 can be more controllable to the direction of motion of support body 81 when carrying out alone or ally oneself with the action and use, and the anti-shake effect that obtains is more directly perceived. It should be noted that, on the basis of the technical solutions disclosed in the present embodiment, as a combination of common general knowledge or common means in the art, other symmetrical layouts may also be adopted; if an axisymmetric layout is adopted, or an equal central angle or an equal radian layout is adopted for a circular structure, since the original purpose of adopting the similar local mode is similar to or equal to the obtained technical effect, even if the embodiment is adopted and not described in detail, the embodiment can directly or indirectly obtain the result, and the result also belongs to the disclosure of the application.

Example 3:

the present embodiment is to perform further optimized setting for the structure in embodiment 2, and specifically includes the following contents: this embodiment is the control of the convenient and anti-shake precision of further compatible installation, it is provided with four second installation cavities 83 to be central symmetry on the support body 81, arbitrary all can be connected with in the second installation cavity 83 dismantlement coil unit 84. The coil unit 84 is detachably connected to the holder body 81, which has three advantages:

A. the manufacturing difficulty of the bracket body 81 can be greatly reduced, and the precision control is improved;

B. the coil unit 84 can be individually assembled, integrity and assemblability of the coil unit 84 are ensured, and the coil 85 and the direct-wound structure 841 are electrically connected, so that the problem of inconvenient operation caused by the installation of the coil 85 on the whole bracket body 81 is avoided. Because the four coils 85 are required to be installed on the bracket body 81 and the size of the bracket body 81 is very small, the assembling difficulty can be greatly reduced when the coil unit 84 is installed in the second installation cavity 83 in a clamping manner after the coil unit 84 is independently assembled.

In order to further improve the integration level and optimize the structural compactness, it is preferable that the two winding columns 844 are fixedly disposed at positions of the straight winding structure 841 near two ends, respectively, and a hall sensor 845 is further mounted on the straight winding structure 841 between the two winding columns 844.

In this embodiment, a metal conductor 842 for connecting with the coil 85 and the hall sensor 845 to form an electrical connection structure is further embedded in the direct winding structure 841, and the metal conductor 842 has a plurality of contacts 843 for wire connection. The metal conductors 842 are flexibly arranged according to the position of the actual electrifying structure, so that the electrifying requirement of each component can be met on the premise of utilizing the existing structure without additionally connecting through an FPC (flexible printed circuit) flat cable. The metal conductor 842 has a spatial multi-layer structure connected with each other, and the contacts 843 are distributed on the upper surface, the lower surface and the side surface of the straight-wound structure 841.

In order to further optimize the structure of the holder body 81 such that the coil unit 84 has a higher degree of matching during the assembly process, it is preferable that the total height of the coil unit 84 in the direction perpendicular to the plane of the photosensitive element is greater than or equal to the thickness of the holder body 81. The bracket body 81 is provided with a first mounting cavity 82 for mounting the photosensitive element.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (7)

1. A coil direct winding structure for a miniature sensor anti-shake motor, comprising a sensor support (8) for mounting a photosensitive element, characterized in that: sensor support (8) include support body (81), the lateral wall position of support body (81) is central symmetry and is provided with four coil unit (84), and arbitrary coil unit (84) all include directly around structure (841), with directly around structure (841) integrated into one piece and be located winding post (844) that photosensitive element installation side was used for bearing coil (85).

2. The coil direct winding structure for the micro sensor anti-shake motor according to claim 1, wherein: the support body (81) is provided with four second mounting cavities (83) in central symmetry, and any one of the second mounting cavities (83) can be detachably connected with the coil unit (84).

3. A coil direct winding structure for a micro sensor anti-shake motor according to claim 1 or 2, wherein: the winding columns (844) are provided with two winding columns, the two winding columns are fixedly arranged at positions, close to two ends, of the straight winding structure (841), and Hall sensors (845) are further installed between the two winding columns (844) on the straight winding structure (841).

4. A coil direct winding structure for a micro sensor anti-shake motor according to claim 3, wherein: and a metal conductor (842) which is used for being connected with the coil (85) and the Hall sensor (845) to form an electric connection structure is also embedded in the direct winding structure (841), and the metal conductor (842) is provided with a plurality of contacts (843) for wiring connection.

5. The coil direct winding structure for the micro sensor anti-shake motor according to claim 4, wherein: the metal conductor (842) has a spatial multilayer structure connected with each other, and the contacts (843) are distributed on the upper surface, the lower surface and the side surface of the straight-wound structure (841).

6. The coil direct winding structure for the micro sensor anti-shake motor according to claim 5, wherein: the total height of the coil unit (84) in a direction perpendicular to the plane of the photosensitive element is greater than or equal to the thickness of the holder body (81).

7. The coil direct winding structure for the micro sensor anti-shake motor according to claim 1, wherein: the bracket body (81) is provided with a first mounting cavity (82) for mounting the photosensitive element.

Images