CN215072101U - Base straight winding wire hiding groove structure under OIS motor - Google Patents

Abstract

The application relates to the OIS motor field, discloses a base directly winds line groove structure of hiding under OIS motor, including the base, still including being located respectively and being close to four coils of base four corners position, be equipped with on the base with the line groove of hiding that the coil suited. This application installs the coil through set up on the base with coil complex hide the wire casing, avoided direct installation coil to cause the base surface height uneven and influence the home range of complex magnet with it or with magnet friction scheduling problem, guaranteed the inside assembly precision of motor and the life of motor equally also.

Description

Base straight winding wire hiding groove structure under OIS motor

Technical Field

The application relates to the OIS motor field, especially relates to the base structure of OIS motor, concretely relates to base straight winding hides line groove structure under OIS motor.

Background

The OIS motor is one of VCM motors, and is an important component for focusing and anti-shake of a camera, and the motor is provided with a magnet, a coil and other parts to drive a lens or an image sensor to move. The existing pick-up lens generally adopts an FPC (flexible printed circuit) board or an upper layer base and a lower layer base as a structure design for realizing up-down electrification and structure simplification in a limited space, and the latter usually adopts a coil direct winding type or a coil pasting process. The coil pasting process needs to use glue and bake the glue to fix the coil, and various factors such as the curing effect of the glue, the manual operation precision, the baking time, baking equipment and the like can cause installation errors, so that the process difficulty is high. The coil direct winding process is prone to cause the base to be uneven and rub against the magnet after winding on the base. In addition, the assembly of the upper and lower layers of bases also easily affects the overall flatness of the bases, so that the flatness does not reach the standard.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the flatness of the base is not up to standard and the production cost is high easily caused when two-layer base structure installation fixed coil in the OIS motor that prior art exists, the application provides a base under OIS motor line groove structure of hiding that directly winds.

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

the utility model provides a base directly winds line groove structure of hiding under OIS motor, includes the base, still including being located respectively and being close to four coils of base four corners position, be equipped with on the base with the line groove of hiding that the coil suited.

The base in the scheme is one part of an OIS motor, and the OIS motor is an important component of a mechanism required by the camera device for realizing anti-shake shooting and is mainly used for driving a lens or an image sensor to move so as to finish focusing or anti-shake movement. The OIS motor is generally powered by a combination of a coil and a magnet or a MEMS motor as a driving member, and the base is a basic mounting structure for constituting a body of the OIS motor, and is used for mounting and fixing the above-mentioned powered member and the like. As the market pursues the thinning of the terminal device using the imaging device, the thinning of the OIS motor is also pursued, and the inner structure thereof is also pursued to be compact and compact without affecting the accuracy. In a motor using a coil and a magnet to provide power, the coil is generally adhered or wound on a base, meanwhile, the coil needs to be connected with an external circuit to adjust the magnitude and direction of current passing through the coil, and a conductive structure is generally arranged on the bottom surface or the side surface of the base, so that the up-and-down conduction or the inside-and-outside conduction of the base needs to be realized. Because the coil directly has the relation of relative motion with the magnet, on the one hand need fully guarantee to have the space that part motion needs in the motor, guarantee the accuracy of motion and avoid the part wearing and tearing, on the other hand still need keep the compactness of structure, therefore, the base is very important as the basis of the whole quick-witted structure of motor. The base structure in this scheme is applied to the motor that provides power by coil and magnet cooperation, sets up on the base and hides the wire casing with the coil complex to the coil installation is fixed and is hiding the wire casing, and the coil embedding is installed in the base promptly, thereby has not only guaranteed the stability of coil installation, still avoids the base surface height that leads to behind the coil installation uneven.

It should be noted that the height difference here is the height difference relative to the case of directly fixing the coil on a plane, according to the mounting manner of the internal components of the OIS motor, the magnet, the elastic arm, the image sensor and other components are also arranged above the base, the elastic arm generally adopts the connection manner that one end is connected with the magnet and the other end is fixed, the fixed connection point is generally on the base, and the protrusion caused by the direct installation of the coil easily causes the waste of the space around the coil, and affects the movement range of the components such as the magnet and the elastic arm. The arrangement of the wire hiding groove in the scheme can form a structure that the top surface of the coil is higher than or lower than the highest point of the wire hiding groove, but the wire hiding groove relieves the bulge of the coil to a certain extent, but cannot influence the movement of components such as a magnet, an elastic arm and the like.

Further, the base comprises an upper base and a lower base. The base in this scheme adopts the structure of two-layer constitution about, compares in prior art FPC board, has higher intensity and durability, and more is favorable to controlling the precision of complex between coil and the magnet. It is worth mentioning that the upper base and the lower base need to be fixedly connected to form the base as a whole, and the connection mode includes but is not limited to bonding or injection molding, wherein if the injection molding mode is adopted, the upper base and the lower base need to be formed into a whole by injection molding twice, and compared with an assembly type process such as bonding, the process of forming a whole by injection molding twice can directly control the flatness of the base from the injection molding process, the connection between the upper base and the lower base is tighter, and the problem that the flatness does not reach the standard due to installation errors possibly existing in the assembly process is avoided.

Furthermore, the wire hiding groove is formed by enclosing the surface of the lower base and the inner wall of the upper base, which is provided with the through hole. According to the scheme, the injection molding mode of the lower base and the upper base is determined by further limiting the forming mode of the wire hiding groove, namely the surface of the lower base is kept flat, only hole positions are reserved when the upper base is injected, the wire hiding groove is finally formed, the process flow and the process difficulty are reduced, and the control precision is facilitated.

Furthermore, the surface of the lower base is provided with a winding post positioned in the wire hiding groove.

Furthermore, the bottom surface of the lower base is provided with a conductive structure, and the lower base is provided with a communication hole for connecting the conductive structure with the coil. This scheme has provided a mode of connecting coil and external circuit, and conductive structure sets up the bottom surface of base under in this scheme, and the base is established the hole and is made the base current conduction from top to bottom through being under, and except electrically conductive tie point, the base still plays the effect of keeping apart conductive structure and coil simultaneously, reduces electric field interference. From the injection molding process, the holes which are communicated up and down need to be formed in the lower base when the conductive structure is positioned on the bottom surface, and the process is simple. Compared with the prior art, the conductive structure is arranged on the side surface of the lower base, and holes which are through in the front and back or left and right are required to be formed in the lower base, so that the process difficulty is higher.

Furthermore, the conductive structure comprises a contact which is formed by upward tilting and is connected with the coil, and a pin which is formed by downward bending from the edge of the lower base and is connected with an external circuit.

The beneficial effect of this application is: this application installs the coil through set up on the base with coil complex hide the wire casing, avoided direct installation coil to cause the base surface height uneven and influence the home range of complex magnet with it or with magnet friction scheduling problem, guaranteed the inside assembly precision of motor and the life of motor equally also.

Drawings

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

FIG. 1 is a top view of the present application;

FIG. 2 is a schematic view of the overall structure of the present application after assembly;

FIG. 3 is a schematic structural view of the coil of the present application after disassembly;

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

FIG. 5 is a fully disassembled structural schematic of the present application;

FIG. 6 is a schematic view of the construction of the lower base of the present application;

fig. 7 is a schematic structural view of a conductive structure in the present application.

In the figure: 1-a coil; 2-a base; 201-wire hiding groove; 3-mounting a base; 4-lower base; 401-wrapping post; 402-communicating hole; 5-a conductive structure; 501-contact; 502-pins.

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:

as shown in fig. 1-4, the OIS motor lower base straight winding wire hiding groove structure includes a base 2, and also includes four coils 1 respectively located at four corners of the base 2, and the base 2 is provided with a wire hiding groove 201 adapted to the coils 1.

The embodiment discloses a base 2 structure applied to an OIS motor, which is a VCM motor and is an important component of a mechanism required by an image pickup apparatus to realize anti-shake image pickup, and the OIS motor is mainly used for driving a lens or an image sensor to move so as to complete focusing or anti-shake movement. The OIS motor is generally powered by a combination of a coil and a magnet or a MEMS motor as a driving member, and the base 2 is a basic mounting structure for constituting a body of the OIS motor for mounting and fixing the above-mentioned powered member and the like. The base 2 structure in this application is applied to the motor that is provided power by coil and magnet cooperation, as shown in fig. 1, base 2 is used for installing coil 1, and every coil 1 is installed respectively in the position that is close to 2 four corners of base. As shown in fig. 2-4, the base 2 is provided with a wire hiding groove 201 corresponding to the coil 1, that is, the position of the wire hiding groove 201 corresponds to the coil 1, so that the coil 1 is located in the wire hiding groove 201.

It should be noted that, in order to avoid the unevenness on the surface of the base 2, the depth of the wire-hiding groove 201 in the present application also corresponds to the height of the coil 1, where the unevenness is the unevenness with respect to the complete protrusion of the coil 1 directly disposed on the base 2, according to the mounting manner of the internal components of the OIS motor, the base 2 is further provided with a magnet, an elastic arm, an image sensor and other components, the elastic arm generally adopts a connection manner that one end is connected with the magnet and the other end is fixed, the fixed connection point is generally disposed on the base 2, and the excessive protrusion of the coil 1 easily affects the movement range of the magnet and the elastic arm and other components.

It should be noted that, since the coil 1 needs to be connected to an external circuit to be controlled by a control circuit in the image pickup apparatus, on the premise that the base surface is required to be prevented from being uneven, the conductive structure connecting the coil 1 and the external circuit needs to be prevented from being directly disposed on the surface of the base 2, and preferably, the conductive structure is disposed on the side surface or the bottom surface of the base.

Example 2:

this example is further optimized and defined based on example 1.

The base 2 comprises an upper base 3 and a lower base 4. As shown in fig. 5-6, the wire-hiding groove 201 is formed by enclosing the surface of the lower base 4 and the inner wall of the upper base 3 with a through hole. The surface of the lower base 4 is provided with a winding post 401 positioned in the wire hiding groove 201. By combining the structure of the base 2 in the present embodiment, when the lower base 4 is formed by injection molding, the surface of the lower base 4 is flat, and the winding post 401 is formed only at the position where the coil 1 is disposed by injection molding. When the upper base 3 is formed by injection molding, a through hole is reserved at the position where the coil 1 is arranged, so that the inner wall of the through hole and the surface of the lower base 4 are enclosed to form a wire hiding groove 201. It is worth to be noted that the upper base 3 and the lower base 4 need to be fixedly connected to form the base 2 as a whole, and the connection mode includes but is not limited to bonding or injection molding, wherein if the injection molding mode is adopted, the upper base and the lower base need to be formed into a whole by injection molding twice, and compared with an assembly type process such as bonding, the process of forming a whole by injection molding twice can directly control the flatness of the base from the injection molding process, the connection between the upper base 3 and the lower base 4 is tighter, and the problem that the flatness does not reach the standard due to installation errors possibly existing in the assembly process is avoided.

Example 3:

in the present embodiment, based on the above-described embodiments, the structure of the coil 1 connected to the external circuit is further optimized and defined.

In the present embodiment, as shown in fig. 5 and 7, a conductive structure 5 is disposed on the bottom surface of the lower base 4, and a communication hole 402 for connecting the conductive structure 5 and the coil 1 is disposed on the lower base 4. In this embodiment, the conductive structure 5 is fixedly disposed on the bottom surface of the lower base 4, as shown in the figure, which is an example of the conductive structure 5, the conductive structure 5 is a flat metal structure, and occupies a small space, in order to connect the conductive structure 5 with an external circuit and the coil 1, the conductive structure 5 includes a contact 501 formed by tilting upward and connected with the coil 1, and a pin 502 formed by bending downward from the edge of the lower base 4 and connected with the external circuit. Thereby reducing the space occupied by the conductive structure 5 when conducting current up and down the base 2.

It is worth to say that, the lower base 4 is provided with a hole to conduct the current up and down of the base 2, so that the base 2 also has the function of isolating the conductive structure 5 from the coil 1, and the electric field of the conductive structure 5 is reduced from interfering with the work of the coil 1 and the magnet. Meanwhile, from the perspective of the injection molding process, the conductive structure 5 located on the bottom surface needs to be provided with a hole penetrating up and down on the lower base 4, so that the process is simple. Compared with the prior art, the conductive structure 5 is arranged on the side surface, and a front through hole and a rear through hole or a left through hole and a right through hole are arranged on the lower base 4, so that the process difficulty is higher.

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 (6)

1. The utility model provides a base is directly wound line and is hidden wire casing structure under OIS motor, includes base (2), its characterized in that: the wire drawing machine is characterized by further comprising four coils (1) which are respectively located at the positions close to the four corners of the base (2), wherein wire hiding grooves (201) matched with the coils (1) are formed in the base (2).

2. The OIS motor lower base straight winding wire hiding slot structure of claim 1 in which: the base (2) comprises an upper base (3) and a lower base (4).

3. The OIS motor lower base straight winding wire hiding slot structure of claim 2 in which: the wire hiding groove (201) is formed by the surface of the lower base (4) and the inner wall of the upper base (3) provided with the through hole.

4. The OIS motor lower base straight winding hidden wire groove structure as claimed in any one of claims 1-3, wherein: and the surface of the lower base (4) is provided with a winding post (401) positioned in the wire hiding groove (201).

5. The OIS motor lower base straight winding wire hiding slot structure of claim 1 in which: the bottom surface of lower base (4) is equipped with conducting structure (5), be equipped with on lower base (4) and make conducting structure (5) and coil (1) be connected intercommunicating pore (402).

6. The OIS motor lower base straight winding wire hiding groove structure as claimed in claim 5, wherein: the conductive structure (5) comprises a contact (501) which is formed by upward tilting and is connected with the coil (1), and a pin (502) which is formed by downward bending from the edge of the lower base (4) and is connected with an external circuit.

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