Carrier structure and vcm motor

Abstract

The utility model discloses a carrier structure and VCM motor relates to VCM motor technical field, including carrier, be equipped with the winding groove for arranging copper wire on the carrier, the winding groove is with carrier center as the center of circle and is distributed in the concentric circle, and the copper wire for arranging symmetrical OIS coil forms annular magnetic circuit. Advantageous effect: through the winding groove of concentric circle distribution can guide copper wire to form annular magnetic circuit, solve the problem that traditional linear winding groove cannot satisfy annular wiring demand, avoid copper wire cross winding or stress concentration. The trapezoidal or circular arc section of winding groove and the setting of insulating boss at the same time divide winding groove into independent wiring area, make annular area wiring more orderly, effectively improve the problem that coil inductance distribution is uneven, and then improve OIS anti -shake precision and motor response speed.

Description

Technical Field

[0001] This utility model relates to the field of VCM motor technology, specifically to a carrier structure and a VCM motor. Background Technology

[0002] In the application of optical image stabilization (OIS) technology in VCM motors (voice coil motors), the design of symmetrical OIS coils has become mainstream.

[0003] However, existing technologies have the following problems: When symmetrical OIS coils need to form a ring-shaped magnetic circuit, traditional straight winding slots cannot meet the requirements of ring-shaped wiring, and copper wires are prone to cross-entanglement or stress concentration. The lack of guiding structures in the ring-shaped wiring leads to uneven distribution of coil inductance, affecting the accuracy of OIS anti-shake and the motor response speed. Unstructured wiring is prone to insulation layer damage due to friction in ring-shaped motion scenarios, increasing the risk of short circuits. Traditional carrier structures are not optimized for ring-shaped wiring, making it difficult to adapt to the ring-shaped symmetrical layout of multiple coils, thus limiting the miniaturization design of motors.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, the purpose of this utility model is to propose a carrier structure and a VCM motor to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] The technical solution of this utility model is implemented as follows:

[0007] on the one hand:

[0008] A carrier structure and a VCM motor are disclosed, including a carrier having winding grooves for arranging copper wires. The winding grooves are concentrically distributed around the center of the carrier to arrange copper wires of symmetrical OIS coils to form an annular magnetic circuit.

[0009] Furthermore, the winding groove is integrally formed with the carrier through stamping, injection molding, or milling processes.

[0010] Furthermore, the cross-section of the winding groove is trapezoidal or arc-shaped, and insulating ribs are provided on both sides of the winding groove to divide the winding groove into independent wiring areas.

[0011] Furthermore, the width of the winding groove is 0.3-0.8 mm and the depth is 0.2-0.6 mm.

[0012] Furthermore, the insulating ribs have rectangular cross-sections and are evenly distributed along the circumferential direction of the winding groove, and the spacing between adjacent insulating ribs is 0.5-1.0 mm, used to isolate the copper wire of the coil.

[0013] on the other hand:

[0014] A VCM motor includes the carrier structure described above.

[0015] The beneficial effects of this utility model are:

[0016] This invention utilizes concentrically distributed winding slots to guide copper wires into a ring-shaped magnetic circuit, solving the problem that traditional straight winding slots cannot meet the requirements of ring-shaped wiring and avoiding copper wire tangling or stress concentration. Simultaneously, the trapezoidal or arc-shaped cross-section of the winding slots and the inclusion of insulating ribs divide the winding slots into independent wiring areas, making the wiring in the ring area more orderly and effectively improving the problem of uneven coil inductance distribution, thereby enhancing OIS anti-shake accuracy and motor response speed.

[0017] Furthermore, the copper wires of the coil are isolated by insulated ribs, reducing friction in circular motion scenarios, lowering the risk of insulation damage, and minimizing short circuits. This carrier structure is optimized for circular wiring and can accommodate symmetrical circular layouts of multiple coils, which is beneficial for miniaturized motor design.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the carrier structure and VCM motor according to an embodiment of the present utility model;

[0022] Figure 2 This is a side view of the carrier structure and VCM motor according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Carrier; 2. Winding groove; 3. Insulating rib. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0026] According to an embodiment of the present invention, a carrier structure and a VCM motor are provided.

[0027] Example 1

[0028] like Figure 1-2 As shown, Embodiment 1 of the present invention is as follows:

[0029] A carrier structure and VCM motor include a carrier 1, on which a winding groove 2 for arranging copper wires is provided. The winding groove 2 is distributed in concentric circles with the center of the carrier 1 as the center, and is used to arrange copper wires of symmetrical OIS coils to form an annular magnetic circuit.

[0030] The winding groove 2 is integrally formed with the carrier 1 through stamping, injection molding, or milling processes. Furthermore, the cross-section of the winding groove 2 is trapezoidal or arc-shaped, and insulating ribs 3 are provided on both sides of the winding groove 2 to divide it into independent wiring areas. The width of the winding groove 2 is 0.3-0.8 mm, and the depth is 0.2-0.6 mm.

[0031] Specifically, the trapezoidal or arc-shaped cross-section of the winding groove 2 and the setting of the insulating ribs 3 divide the winding groove into independent wiring areas, making the wiring in the annular area more orderly, effectively improving the problem of uneven distribution of coil inductance, and thus improving the OIS anti-shake accuracy and motor response speed.

[0032] In addition, the cross-section of the insulating rib 3 is rectangular and is evenly distributed along the circumference of the winding groove 2, and the spacing between adjacent insulating ribs 3 is 0.5-1.0mm, which is used to isolate the copper wire of the coil.

[0033] This technical solution reduces friction in circular motion scenarios by isolating the copper wires of the coil with insulating ribs 3, thereby lowering the risk of insulation layer damage and reducing the occurrence of short circuits. This carrier structure is optimized for circular wiring and can accommodate symmetrical circular layouts of multiple coils, which is beneficial for the miniaturization of the motor.

[0034] With the help of the above technical solution, the copper wire can be guided to form a ring magnetic circuit by the concentrically distributed winding groove 2, which solves the problem that the traditional straight winding groove cannot meet the requirements of ring wiring and avoids the copper wire crossing and twisting or stress concentration.

[0035] Example 2

[0036] Embodiment 2 of the present invention is as follows:

[0037] A VCM motor includes the aforementioned carrier structure.

[0038] Specifically, in application, when current is applied to the symmetrical OIS coil: the current generates a ring magnetic field through the copper wire in the winding slot 2, which interacts with the magnetic field of the surrounding permanent magnet; the carrier 1 moves slightly in the vertical direction under the action of Lorentz force, realizing the optical image stabilization function; the insulating rib 3 ensures that the copper wire wiring is neat and avoids damage to the insulation layer due to friction; the Hall sensor monitors the displacement in real time and provides feedback, forming a closed-loop control and improving the image stabilization accuracy to ±0.1°.

[0039] In summary, the above-mentioned technical solution of this utility model achieves the following effects: the provided carrier structure and VCM motor, by optimizing the structure and distribution of the winding slots, solve the problems existing in the annular magnetic circuit wiring of traditional VCM motors, improve the OIS anti-shake accuracy and motor response speed, reduce the risk of short circuits, facilitate the miniaturization design of the motor, and have good prospects for industrial applications. In actual production, the winding slots can be prepared by processes such as stamping, injection molding, or milling according to different needs to meet the requirements of large-scale production. At the same time, the structural design is simple and reasonable, easy to manufacture and assemble, and can effectively improve production efficiency and product quality.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A carrier structure, characterized in that, Includes a carrier (1), on which a winding groove (2) for arranging copper wires is provided. The winding groove (2) is distributed in concentric circles with the center of the carrier (1) as the center, and is used to arrange copper wires of symmetrical OIS coils to form a ring magnetic circuit.

2. The carrier structure according to claim 1, characterized in that, The winding groove (2) is integrally formed with the carrier (1) by stamping, injection molding or milling process.

3. The carrier structure according to claim 1, characterized in that, The cross-section of the winding groove (2) is trapezoidal or arc-shaped, and insulating ribs (3) are provided on both sides of the winding groove (2) to divide the winding groove (2) into independent wiring areas.

4. A carrier structure according to claim 3, characterized in that, The width of the winding groove (2) is 0.3-0.8 mm and the depth is 0.2-0.6 mm.

5. A carrier structure according to claim 3, characterized in that, The insulating ribs (3) have rectangular cross-sections and are evenly distributed along the circumference of the winding groove (2), with a spacing of 0.5-1.0 mm between adjacent insulating ribs (3), used to isolate the copper wire of the coil.

6. A VCM motor, characterized in that, Includes the carrier structure described in any one of claims 1-5.

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