VCM motor carrier, VCM motor, optical zoom lens and smart terminal

Abstract

The present invention discloses a carrier for a VCM motor, a VCM motor, an optical zoom lens, and a smart terminal, relating to the field of terminal technology. The carrier for the VCM motor is movably mounted within the VCM motor and is characterized in that the carrier comprises: a mounting plate having a first side surface and a second side surface disposed oppositely, and having a through-hole extending through the mounting plate; a flexible circuit board disposed on the first side surface, with two spaced connection points formed on the flexible circuit board; and a coil mounted on the second side surface, with both ends of the coil passing through the through-holes and connected to the two connection points, so that the coil is electrically connected to the flexible circuit board. The carrier for the VCM motor proposed in the present invention has a reasonable component distribution and a small size, meeting people's requirements for small size and lightweight.

Description

Technical Field

[0001] The present invention belongs to the field of terminal technology, and in particular relates to a carrier of a VCM motor, a VCM motor, an optical zoom lens and a smart terminal. Background Art

[0002] With the widespread adoption of smart devices like mobile phones and tablets, users are placing higher demands on the focus, anti-shake, and other performance of their camera modules. Voice coil motors (VCMs) are crucial components in optical zoom lenses, driving the telescopic movement of the lens.

[0003] An optical zoom lens includes a voice coil motor (VCM) and a camera lens mounted on a carrier of the VCM motor. The VCM contains one or more magnetic components and coils. When the coils are energized, the interaction with the magnetic field of the magnetic components causes the camera lens to move in three dimensions. Furthermore, the VCM motor also contains control circuitry, such as a flexible printed circuit board (FreePascalCompiler, FPC), which is mounted on the carrier of the VCM motor. During filming, the terminal's processor sends control commands to the VCM's FPC, instructing the FPC to energize the coils and control the camera lens to move a certain distance in three dimensions, thereby achieving the camera lens's anti-shake and focus functions.

[0004] However, the flexible circuit board, the camera lens, and the coil are all disposed on the carrier of the VCM motor, which increases the volume of the carrier of the VCM motor and further increases the volume of the optical zoom lens. Summary of the Invention

[0005] Based on this, the present invention provides a carrier of a VCM motor, a VCM motor, an optical zoom lens and a smart terminal, aiming to provide a carrier of a VCM motor with reasonable component distribution and a small size.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A carrier of a VCM motor is movably mounted in the VCM motor, and the carrier of the VCM motor includes:

[0008] A mounting plate having a first side surface and a second side surface that are opposite to each other, and a through hole extending through the mounting plate;

[0009] a flexible circuit board, disposed on the first side surface, wherein two connection points are formed on the flexible circuit board; and

[0010] A coil is installed on the second side surface, with two ends of the coil respectively passing through the via holes and respectively connected to the two connection points, so that the coil is electrically connected to the flexible circuit board.

[0011] Optionally, two ends of the coil are respectively welded to the two connection points.

[0012] Optionally, the coil is annular as a whole, with a through hole formed in the middle, and the through hole is arranged corresponding to the via hole.

[0013] Optionally, an annular groove is provided on the second side surface, the shape of the annular groove is adapted to the shape of the coil, and the annular groove is arranged around the via hole.

[0014] Optionally, an adhesive layer is provided between the groove wall of the annular groove and the coil to fix the coil; and / or,

[0015] At least a portion of the annular groove is arranged to pass through the end surface of the mounting plate.

[0016] Optionally, a glue pouring groove communicating with the annular groove is provided on the groove wall of the annular groove at intervals.

[0017] The present invention further provides a VCM motor, comprising the carrier of the VCM motor as described above.

[0018] The present invention further provides an optical zoom lens, comprising:

[0019] A VCM motor, wherein the VCM motor is the VCM motor described above;

[0020] The camera lens is mounted on the carrier of the VCM motor so as to move along with the carrier of the VCM motor.

[0021] The present invention further provides a smart terminal comprising the optical zoom lens as described above.

[0022] Optionally, the smart terminal includes a mobile phone, a tablet computer, a car, or a robot.

[0023] In the technical solution provided by the present invention, the carrier of the VCM motor includes a mounting plate, a flexible circuit board and a coil. The flexible circuit board and the coil are respectively fixed to the first side surface and the second side surface of the carrier of the VCM motor. On the one hand, the coil output is more stable. On the other hand, the usable space of the flexible circuit board on the mounting plate can be increased, saving the space of the flexible circuit board and the coil on the mounting plate, so that the components on the mounting plate are reasonably distributed, and the volume of the carrier of the VCM motor is reduced. The carrier of the VCM motor proposed by the present invention has a reasonable distribution of components and a small volume, which meets people's requirements for small size and lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 A simplified structural diagram of a carrier of a VCM motor proposed in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Front view of

[0027] Figure 3 for Figure 1 A schematic structural diagram from another perspective;

[0028] Figure 4 for Figure 3 Front view of

[0029] Figure 5 This is a simplified structural diagram of a VCM motor proposed in an embodiment of the present invention.

[0030] Description of Figure Numbers:

[0031] 100 VCM motor carrier 13 Via 1 Mounting plate 2 Flexible circuit boards 11 First side 21 Connecting Points 12 Second side 3 Coil 121 Ring groove 31 through-hole 1211 Glue filling tank 4 base body

[0032] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The flexible circuit board, the camera lens and the coil are all arranged on the carrier of the VCM motor, which increases the volume of the carrier of the VCM motor and further increases the volume of the optical zoom lens.

[0037] In view of this, the present invention provides a carrier for a VCM motor, aiming to provide a carrier for a VCM motor with reasonable component distribution and small size. Figure 1 A simplified structural diagram of a carrier of a VCM motor proposed in an embodiment of the present invention; Figure 2 for Figure 1 Front view of Figure 3 for Figure 1 A schematic structural diagram from another perspective; Figure 4 for Figure 3 Front view of Figure 5 This is a simplified structural diagram of a VCM motor proposed in an embodiment of the present invention.

[0038] See also Figure 1 The carrier 100 of the VCM motor proposed in the present invention is movably installed in the VCM motor. The carrier 100 of the VCM motor includes a mounting plate 1, a flexible circuit board 2, and a coil 3. The mounting plate 1 has a first side surface 11 and a second side surface 12 arranged opposite to each other, and a through hole 13 is formed on the mounting plate 1; the flexible circuit board 2 is arranged on the first side surface 11, and two connection points 21 are formed on the flexible circuit board 2. The coil 3 is installed on the second side surface 12, and the two ends of the coil 3 respectively pass through the through hole 13 and are respectively connected to the two connection points 21, so that the coil 3 is electrically connected to the flexible circuit board 2.

[0039] In the technical solution provided by the present invention, the carrier 100 of the VCM motor includes a mounting plate 1, a flexible circuit board 2 and a coil 3. The flexible circuit board 2 and the coil 3 are respectively fixed to the first side 11 and the second side 12 of the carrier 100 of the VCM motor. On the one hand, the output of the coil 3 is more stable. On the other hand, the usable space of the flexible circuit board 2 on the mounting plate 1 can be increased, saving the space of the flexible circuit board 2 and the coil 3 on the mounting plate 1, so that the components on the mounting plate 1 are reasonably distributed, and the volume of the carrier 100 of the VCM motor is reduced. The carrier 100 of the VCM motor proposed by the present invention has a reasonable distribution of components and a small volume, which meets people's requirements for small size and lightweight.

[0040] In the embodiment of the present invention, the carrier 100 of the VCM motor is used to carry the camera lens. The force applied to the carrier 100 of the VCM motor drives the camera lens to move, thereby achieving focusing of the camera lens.

[0041] Flexible printed circuit (FPC) 2, also known as flexible circuit board (FPC), features high wiring density, light weight, and thin thickness. It is primarily used in a wide range of products, including mobile phones, laptops, PDAs (personal digital assistants), digital cameras, and LCD display drivers (LCMs). Made from polyimide or polyester film, FPC is a highly reliable and flexible printed circuit board, a type of PCB. By controlling the current in coil 3 through FPC 2, the VCM motor's carrier 100 is subjected to force changes, causing it to move, driving the camera lens to achieve focusing, resulting in a high degree of automation.

[0042] The present invention does not limit the connection method between the two ends of the coil 3 and the two connection points 21. Preferably, the two ends of the coil 3 are respectively welded to the two connection points 21, so that the connection between the output wire of the coil 3 and the flexible circuit board 2 is more secure.

[0043] The position of the through hole 13 for passing the two ends of the coil 3 is not limited by the present invention and can be at any position of the mounting plate 1 or at a position in the embodiment of the present invention. Figures 1 to 3 The coil 3 is annular in shape as a whole, with a through hole 31 formed in the middle. The through hole 31 is arranged corresponding to the through hole 13. The through hole 31 in the middle of the coil 3 corresponds to the through hole 13, forming a channel for the magnetic member to pass through and exert force on the coil 3. On the other hand, the two ends of the coil 3 can also pass through the channel to the first side surface 11 and connect to the connection point 21. In this way, multiple drilling is avoided and costs are saved.

[0044] In order to facilitate the fixing of the coil 3 on the second side 12, preferably, refer to Figures 1 to 4 The second side surface 12 includes an annular groove 121. The shape of the annular groove 121 matches the shape of the coil 3 and surrounds the via 13. The annular groove 121 is annular in shape. By providing the annular groove 121 on the second side surface 12, the coil 3 is secured within the annular groove 121. This not only reduces the overall volume of the VCM motor carrier 100, but also provides a more secure and stable fixation of the coil 3 to the mounting plate 1.

[0045] Furthermore, an adhesive layer is provided between the groove wall of the annular groove 121 and the coil 3 to fix the coil 3. The provision of the adhesive layer enables the coil 3 to be fixed on the mounting plate 1 more firmly and stably.

[0046] In order to facilitate the setting of the adhesive, the coil 3 is fixed in the annular groove 121. Figure 1 and Figure 2 Glue pouring grooves 1211 are spaced apart on the groove wall of the annular groove 121 and communicate with the annular groove 121. Glue is added to the glue pouring grooves 1211. When there is a gap between the coil 3 and the groove wall of the annular groove 121, the glue flows into the gap to form an adhesive layer, achieving a surface connection between the two. When there is no gap between the two, the glue fills the glue pouring grooves 1211, achieving a point connection between the two.

[0047] In addition, preferably, at least a portion of the annular groove 121 is provided through the end surface of the mounting plate 1. This makes the processing of the annular groove 121 more convenient, and also enables the coil 3 to be fixed to the edge of the mounting plate 1. The remaining space on the mounting plate 1 can be used to arrange other components, thereby improving the utilization rate of the mounting plate 1.

[0048] The present invention further provides a VCM motor, comprising the carrier 100 of the VCM motor as described above. Figure 5 The VCM motor proposed in the present invention includes a base body 4 and a carrier 100 of the VCM motor, wherein the carrier 100 of the VCM motor is movably mounted on the base body 4. In addition, the VCM motor also includes conventional components such as a yoke (a metal closed structure) and a magnet, which will not be described in detail one by one.

[0049] The VCM motor proposed in the present invention has all the beneficial effects of the carrier 100 of the VCM motor described above, which will not be described in detail here.

[0050] The present invention further provides an optical zoom lens, comprising:

[0051] A VCM motor, wherein the VCM motor is the VCM motor described above;

[0052] The camera lens is mounted on the carrier 100 of the VCM motor to move along with the carrier 100 of the VCM motor.

[0053] In this embodiment of the present invention, the VCM motor carrier 100 supports the camera lens. The force applied to the VCM motor carrier 100 drives the camera lens to move, thereby achieving focusing. The optical zoom lens proposed in this invention possesses all the advantages of the aforementioned VCM motor carrier 100, and a detailed description thereof will not be given here.

[0054] The present invention further provides a smart terminal including the optical zoom lens as described above. The optical zoom lens provided by the present invention has all the beneficial effects of the carrier 100 of the VCM motor as described above, and will not be described in detail here.

[0055] Preferably, the intelligent terminal includes but is not limited to a mobile phone, a tablet computer, a car, and a robot. As long as it is an intelligent terminal including an optical zoom lens, it is within the scope of protection of the present invention.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A carrier of a VCM motor, movably mounted in the VCM motor, characterized in that: The carrier of the VCM motor includes: A mounting plate having a first side surface and a second side surface that are opposite to each other, and a through hole extending through the mounting plate; a flexible circuit board, disposed on the first side surface, wherein two connection points are formed on the flexible circuit board; and a coil mounted on the second side surface, with two ends of the coil respectively passing through the via holes and respectively connected to the two connection points, so that the coil is electrically connected to the flexible printed circuit board; The coil is annular in shape as a whole, and a through hole is formed in the middle, and the through hole is arranged corresponding to the via hole; An annular groove is formed on the second side surface, the shape of the annular groove is adapted to the shape of the coil, and the annular groove is arranged around the via hole; An adhesive layer is provided between the groove wall of the annular groove and the coil to fix the coil; A glue pouring groove communicating with the annular groove is spaced apart on the groove wall of the annular groove.

2. The carrier of the VCM motor according to claim 1, characterized in that: The two ends of the coil are respectively welded to the two connection points.

3. The carrier of the VCM motor according to claim 1, wherein: At least a portion of the annular groove is arranged to pass through the end surface of the mounting plate.

4. A VCM motor, characterized in that: A carrier comprising a VCM motor according to any one of claims 1 to 3.

5. An optical zoom lens, characterized in that: include: A VCM motor, wherein the VCM motor is the VCM motor according to claim 4; The camera lens is mounted on the carrier of the VCM motor so as to move along with the carrier of the VCM motor.

6. An intelligent terminal, characterized in that: Comprising the optical zoom lens as claimed in claim 5.

7. The intelligent terminal according to claim 6, wherein: The smart terminals include mobile phones, tablet computers, cars, and robots.

Images