A compact VCM motor, camera, electronic device

Abstract

The application relates to a compact VCM motor, a camera and an electronic device, the compact VCM motor comprising a fixed part and a focusing part, the fixed part comprising a base and a shell buckled on the base, the focusing part comprising a carrier for bearing an optical lens, first and second elastic members for elastically connecting the carrier and the fixed part and allowing the carrier to move along the optical axis direction of the optical lens, a coil wound around the carrier, and a magnet group matched with the coil and driving the carrier to move, one side of the fixed part being provided with a biasing area, the biasing area being provided with an anti-torsion structure and / or a winding column, and two ends of the coil being bound to the winding column. The application sets the anti-torsion structure and / or the winding column in the biasing area by setting the biasing area on one side of the fixed part, so that the VCM motor can be reduced in length and width size by reducing the thickness of the carrier and the coil, and the size of the VCM motor is miniaturized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of VCM motors, in particular, and particularly relates to a compact VCM motor, a camera and an electronic device. BACKGROUND

[0002] Taking photos has become an essential function of electronic products such as mobile phones and tablets, and VCM motors are one of the important basic components for realizing the photo function. With the development of electronic products such as mobile phones and tablets, people have increasingly high requirements for the size of VCM motors, especially for mobile phones, because mobile phones are very precise and small products. Mobile phone manufacturers hope that the size of VCM motors can be smaller to achieve the design of light and thin mobile phones. In the face of increasingly stringent miniaturization requirements, VCM motor manufacturers are also continuously investing in the design of VCM motor miniaturization. SUMMARY

[0003] Therefore, the present application provides a compact VCM motor, which sets a bias area on one side of the fixed part, sets the anti-torsion structure and / or winding column in the bias area, so that the VCM motor can reduce the length and width size of the VCM motor by reducing the thickness of the carrier and the coil, and realize the size miniaturization design of the VCM motor.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A compact VCM motor, comprising a fixed part and a focusing part, the fixed part comprising a base and a shell buckled on the base, the focusing part comprising a carrier for carrying an optical lens, a first elastic member and a second elastic member for elastically connecting the carrier and the fixed part and allowing the carrier to move relative to the fixed part along the optical axis direction of the optical lens, a coil wound on the carrier, and a magnet group cooperating with the coil and driving the carrier to move; one side of the fixed part is provided with a bias area, and the bias area can be provided with an anti-torsion structure and / or a winding column, and the two ends of the coil are bound to the winding column.

[0006] The present application sets necessary components in the bias area, such as anti-torsion structure, winding column, etc., so that the VCM motor can reduce the length and width size of the VCM motor by reducing the thickness of the carrier and the coil, so as to maximize the ratio of the lens diameter to the length and width size of the motor, and realize the size miniaturization design of the VCM motor.

[0007] Optionally, in one possible implementation, the magnet group comprises four magnets located in the four corner regions of the fixed part.

[0008] Four magnets are arranged in the four corner regions of the fixed part, which can further reduce the length and width of the VCM motor, maximize the ratio of the lens diameter to the length and width of the motor, and further miniaturize the VCM motor.

[0009] Optionally, in a possible implementation, the anti-torsion structure comprises an anti-torsion block arranged on the carrier and an anti-torsion groove arranged on the base or the shell, and the anti-torsion block is embedded in the anti-torsion groove and tightly fitted with the anti-torsion groove.

[0010] The anti-torsion block is embedded in the anti-torsion groove and tightly fitted with the anti-torsion groove to form an anti-torsion structure, so that the anti-torsion structure can effectively increase the anti-torsion capability of the VCM motor.

[0011] Optionally, in a possible implementation, the base or the shell is provided with a first slot column and a second slot column, and the first slot column and the second slot column form an anti-torsion groove with the base or the shell.

[0012] The first slot column and the second slot column can be arranged on the base or the shell, and the first slot column and the second slot column form an anti-torsion groove with the surface of the base or the surface of the shell. The anti-torsion block is embedded in the anti-torsion groove to form a tightly fitted assembly, thereby increasing the anti-torsion capability of the VCM motor.

[0013] Optionally, in a possible implementation, the biasing area comprises a biasing seat connected with the base and a biasing shell connected with the shell, and the biasing seat and the biasing shell enclose a cavity, and the anti-torsion structure and / or the winding column are located in the cavity.

[0014] The biasing area is formed by the biasing seat and the biasing shell, and the biasing seat and the biasing shell enclose a cavity. The anti-torsion structure and / or the winding column are placed in the cavity, and the biasing area is uniformly arranged, thereby saving the length and width of the VCM motor.

[0015] Optionally, in a possible implementation, the anti-torsion block is integrally formed with the carrier, and the first slot column and the second slot column are integrally formed with the base or the shell. The biasing seat is integrally formed with the base, and the biasing shell is integrally formed with the shell.

[0016] The integrally formed part has no splicing marks. The material is molded once in a molding machine to produce a product without splicing marks. Relatively speaking, the quality is better, the service life is longer, the structure of the integrally formed part is much firmer than that of the split part connected later, and the split part connected later has hidden weak points in the gaps. The integrally formed part has no hidden weak points.

[0017] Optionally, in a possible implementation, the first elastic member and the second elastic member are connected to the magnet group or the fixed part.

[0018] The first elastic member and the second elastic member can be fixedly connected with the shell and the base respectively, or can be connected to upper and lower surfaces of the magnet group.

[0019] A camera comprising the compact VCM motor.

[0020] An electronic device comprising the camera.

[0021] The present application has the following beneficial effects compared with the prior art:

[0022] The compact VCM motor of the present application can reduce the length and width dimensions of the VCM motor by reducing the thickness of the carrier and the coil, so as to maximize the ratio of the lens diameter to the length and width dimensions of the motor, and realize the size miniaturization design of the VCM motor. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0024] Figure 1 The structural diagram of the compact VCM motor of an embodiment of the present application.

[0025] Figure 2 The partial sectional view of the compact VCM motor of an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters refer to like items throughout the accompanying drawings, and therefore, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings. In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore, cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, cannot be understood as limiting the present application.

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0031] The present embodiment provides a compact VCM motor, which comprises a fixed part 100 and a focusing part 200. The fixed part 100 comprises a base 110 and a shell 120 buckled on the base 110. The focusing part 200 comprises a carrier 210 for carrying an optical lens, a first elastic member 220 and a second elastic member 230 for elastically connecting the carrier 210 and the fixed part 100 and allowing the carrier 210 to move along the optical axis direction of the optical lens relative to the fixed part 100, a coil 240 wound around the carrier 210, and a magnet group 250 cooperating with the coil 240 and driving the carrier 210 to move. One side edge of the fixed part 100 is provided with a biasing area 300. The biasing area 300 can be provided with a torsion-resistant structure 400 and a winding column 500. Two ends of the coil 240 are bound to the winding column 500.

[0032] The present application sets the biasing area 300 on one side edge of the fixed part 100, sets the torsion-resistant structure 400 and the winding column 500 in the biasing area 300, so that the VCM motor can reduce the length and width dimensions by reducing the thickness of the carrier 210 and the coil 240, thereby maximizing the ratio of the lens diameter to the length and width dimensions of the motor and realizing the size miniaturization design of the VCM motor. Due to the unilateral setting of the biasing area, the size of the VCM motor on this side is increased, but the sizes of the other three side edges except this side are greatly reduced, thereby realizing the overall size optimization of the VCM motor. Through the size optimization of the VCM motor, more internal space can be saved for electronic products such as mobile phones and tablets.

[0033] It should be noted that in the present embodiment, the magnet group 250 comprises four magnets located in the four corner regions of the fixed part 100.

[0034] The spatial layout of the four corner magnets is more conducive to the reduction of the spatial size of the motor. The four magnets are arranged in the four corner regions of the fixed portion 100, which can further reduce the length and width of the VCM motor, maximize the ratio of the lens diameter to the length and width of the motor, and further miniaturize the VCM motor.

[0035] It should be noted that in the embodiment, the anti-torsion structure 400 includes an anti-torsion block 410 arranged on the carrier 210 and an anti-torsion groove 420 arranged on the base 110 or the shell 120, and the anti-torsion block 410 is embedded in the anti-torsion groove 420 and tightly fits with the anti-torsion groove 420.

[0036] The anti-torsion block 410 is embedded in the anti-torsion groove 420 and tightly fits with the anti-torsion groove 420 to form the anti-torsion structure 400, so that the anti-torsion structure 400 can effectively increase the anti-torsion capability of the VCM motor.

[0037] It should be noted that in the embodiment, the base 110 or the shell 120 is provided with a first slot column 421 and a second slot column 422, and the first slot column 421 and the second slot column 422 form the anti-torsion groove 420 with the base 110 or the shell 120.

[0038] The first slot column 421 and the second slot column 422 can be arranged on the base 110 or the shell 120, and the first slot column 421 and the second slot column 422 form the anti-torsion groove 420 with the surface of the base 110 or the surface of the shell 120. The anti-torsion block 410 is embedded in the anti-torsion groove 420 to form a tightly fitted assembly, thereby increasing the anti-torsion capability of the VCM motor.

[0039] It should be noted that in the embodiment, the biasing area 300 includes a biasing seat 310 connected with the base 110 and a biasing shell 320 connected with the shell 120, and the biasing seat 310 and the biasing shell 320 enclose a cavity, and the anti-torsion structure 400 and the winding column 500 are located in the cavity.

[0040] The biasing area 300 is formed by the biasing seat 310 and the biasing shell 320, and the biasing seat 310 and the biasing shell 320 enclose a cavity, and the anti-torsion structure 400 and the winding column 500 are placed in the cavity, which are uniformly biased to save the length and width of the VCM motor.

[0041] It should be noted that in the embodiment, the anti-torsion block 410 is integrally formed with the carrier 210, and the first slot column 421 and the second slot column 422 are integrally formed with the base 110 or the shell 120. The biasing seat 310 is integrally formed with the base 110, and the biasing shell 320 is integrally formed with the shell 120.

[0042] The integrally formed part has no splicing trace, and the material is formed once in the forming machine, has no splicing trace, is relatively better in quality, and has a longer service life. Compared with the split part connected later, the structure of the integral part is much firmer in strength, and the split part connected later has hidden weak points in the gaps. The integrally formed part has no hidden weak points.

[0043] It should be noted that in the embodiment, the first elastic member 220 and the second elastic member 230 are connected to the magnet group 250 or the fixing portion 100.

[0044] The first elastic member 220 and the second elastic member 230 can be respectively connected and fixed with the shell 120 and the base 110, or can be connected to the upper and lower surfaces of the magnet group 250.

[0045] In other embodiments, it can be a camera including the compact VCM motor in Embodiment 1.

[0046] Further, in other embodiments, it can also be an electronic device including the camera in the foregoing embodiments.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A compact VCM motor, characterized in that, include: The fixing part includes a base and a housing that is fastened to the base; The focusing unit includes a carrier for carrying an optical lens, a first elastic member and a second elastic member that elastically connect the carrier and the fixing part and allow the carrier to move relative to the fixing part along the optical axis of the optical lens, a coil wound on the carrier, and a magnet assembly that cooperates with the coil and drives the carrier to move. A bias area is provided on one side of the fixing part, and the bias area is provided with an anti-torsion structure and a winding post. The two ends of the coil are bound to the winding post. The anti-torsion structure includes an anti-torsion block disposed on the carrier and an anti-torsion groove disposed on the base or the outer shell, wherein the anti-torsion block is embedded in the anti-torsion groove and fits tightly with the anti-torsion groove. The base or outer shell is provided with a first groove post and a second groove post, and the first groove post and the second groove post form an anti-torsion groove with the base or outer shell. The bias area includes a bias seat connected to the base and a bias shell connected to the outer shell. The bias seat and the bias shell enclose a cavity, and the anti-torsion structure and the winding post are located inside the cavity.

2. The compact VCM motor according to claim 1, characterized in that, The magnet assembly includes four magnets located in the four corner areas of the fixing part.

3. The compact VCM motor according to claim 1, characterized in that, The anti-torsion block is integrally formed with the carrier, and the first groove column and the second groove column are integrally formed with the base or the outer shell.

4. The compact VCM motor according to claim 1, characterized in that, The biasing seat and the base are integrally formed, and the biasing shell and the outer shell are integrally formed.

5. The compact VCM motor according to claim 1, characterized in that, The first elastic element and the second elastic element are connected to the magnet assembly or the fixing part.

6. A camera, characterized in that, Including the compact VCM motor as described in any one of claims 1-5.

7. An electronic device, characterized in that, Includes the camera as described in claim 6.

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