CN217721306U - Voice coil motor and camera module - Google Patents

Abstract

The invention discloses a voice coil motor and a camera module thereof, wherein the voice coil motor comprises a base and a carrier, the carrier is arranged above the base and can move relative to the base, so that the carrier can be positioned at a first position close to the base and a second position far away from the base, a first matching part is arranged at the top of the base, a second matching part is arranged at the bottom of the carrier, a first buckling part is arranged on the first matching part, and a second buckling part which is jointed with the first buckling part when the carrier is positioned at the second position is arranged on the second matching part. In the voice coil motor and the camera module provided by the invention, when the voice coil motor is electrified, the base and the carrier are attached through the first buckling part and the second buckling part, and the first buckling part and the second buckling part have no gap, so that dust or fine particles can be effectively prevented from entering the voice coil motor.

Description

Voice coil motor and camera module

Technical Field

The invention relates to the technical field of imaging, in particular to a voice coil motor and a camera module using the same.

Background

At present, most mobile devices (including mobile phones, tablet computers and the like) are provided with a camera module, so that conversion between optical signals and electric signals is realized through the camera module, and image information is recorded and stored, thereby realizing photographing and photographing functions.

As shown in fig. 1, a vcm comprises a base 11, a carrier 13, a coil 14, a magnetic element 15, a housing 17, an upper spring 19 and a lower spring 21. The carrier 13 is disposed on the base 11, the coil 14 is sleeved on the carrier 13, the magnetic element 15 is disposed corresponding to the coil 14, the housing 17 is connected to the base 11, and the carrier 13, the coil 14, and the magnetic element 15 are all disposed in the housing 17. The upper spring plate 19 and the lower spring plate 21 are respectively positioned at the upper end and the lower end of the carrier 13, and the lower spring plate 21 is connected with the coil 14 to electrify the coil 14. The vcm also includes leads 23 connected to the lower spring plate 21 to allow the coil 14 to communicate with an external circuit. When the zoom lens is used, the electrified coil 14 generates an ampere force in the magnetic field of the magnetic element 15, so that the carrier 13 can drive a lens (not shown) to move relative to the base 11 along the axial direction, and automatic zooming is realized.

Referring to fig. 2 and 3, when the coil 14 is not energized, a gap a exists between the carrier 13 and the base 11, and dust or fine particles easily enter the voice coil motor along the arrow direction shown in fig. 2 and through the gap a, and then fall onto the filter to cause defects such as movable dirty spots, which greatly affects the production yield of the camera module and the yield of the mobile device assembly. Referring to fig. 4 and 5, when the coil 14 is energized, the carrier 13 moves upward, the gap B between the carrier 13 and the base 11 further increases, and dust or fine particles more easily fall to the filter, causing defects.

Referring to fig. 6, the camera module using the voice coil motor includes a voice coil motor, a base 24, a substrate 25, a chip 26, a filter 27 and a lens 28, the voice coil motor is disposed on the base 24, the base 24 is disposed on the substrate 25, a cavity is disposed in the base 24 for accommodating the chip 26 and the filter 27, the chip 26 is fixed and electrically connected to the substrate 25, the filter 27 is disposed corresponding to the chip 26, and the lens 28 is disposed in the carrier 14 of the voice coil motor. After the camera module is manufactured, in order to prevent dust from falling to the inside of the voice coil motor to pollute the optical filter in the transportation process, a protective film 29 is required to be covered on the camera module, the protective film 29 is covered on the top of a shell 17 of the voice coil motor to cover a gap between a lens 28 and the shell 17, the cost is high, and the pollution of the optical filter caused by dust and the like in the use process cannot be avoided.

The foregoing description is provided for general background information and is not admitted to be prior art.

Disclosure of Invention

The invention aims to provide a voice coil motor and a camera module with better dustproof effect.

The invention provides a voice coil motor which comprises a base and a carrier, wherein the carrier is arranged above the base and can move relative to the base, so that the carrier can be positioned at a first position close to the base and a second position far away from the base, a first matching part is arranged at the top of the base, a second matching part is arranged at the bottom of the carrier, a first buckling part is arranged at the first matching part, and a second buckling part which is attached to the first buckling part when the carrier is positioned at the second position is arranged at the second matching part.

Further, one side of the first matching part of the base protrudes towards the carrier, the first buckling part is a hook part formed on one side of the first matching part, one side of the second matching part of the carrier protrudes towards one side of the base, and the second buckling part is a hook part formed on one side of the second matching part.

Further, the base the first cooperation portion is protruding towards both sides, first buckling parts are for forming in two hook portions of first cooperation portion both sides, the carrier includes two the second cooperation portion, two the second cooperation portion is located respectively first cooperation portion both sides, two the second cooperation portion all faces first cooperation portion is protruding, the second buckling part be for forming in the hook portion of second cooperation portion.

Further, the hook portion of the first matching portion is provided with a first inclined surface, the hook portion of the second matching portion is provided with a second inclined surface, the first inclined surface is parallel to the second inclined surface, and when the carrier is located at the second position, the first inclined surface is attached to the second inclined surface.

Furthermore, the first buckling part is a bending part positioned on one side of the first matching part, and the second buckling part is a bending part positioned on one side of the second matching part;

first buckling parts is including the cooperation bottom surface, second buckling parts is including the cooperation top surface, the cooperation bottom surface with the cooperation top surface all is the plane, the cooperation bottom surface can the carrier is located when the second position with the laminating of cooperation top surface.

Furthermore, one of the bottom surface and the top surface is provided with a clamping groove, and the other bottom surface is provided with a clamping hook facing the clamping groove, wherein the clamping hook can be clamped into the clamping groove when the carrier is located at the second position.

Further, the top of base still is equipped with first surface, the inboard edge of first surface upwards extends and forms first cooperation portion, and when the carrier is located when the first position, the bottom surface of second buckling parts with the laminating of first surface of base.

The voice coil motor further comprises a shell, the shell is arranged on the base, the shell is hollow to form an accommodating cavity, the carrier is arranged in the accommodating cavity of the shell, a mounting groove located on the outer periphery of the base is formed in the top of the base, and the shell extends into the mounting groove of the base;

the top of base still is equipped with and is located the mounting groove is inboard, towards the bellied flange in carrier one side, second cooperation portion stretches into the flange with in the recess between the first cooperation portion.

The invention also provides a camera module, which comprises a base, a circuit board, a lens and the voice coil motor, wherein a containing cavity is formed in the base, an imaging chip and an optical filter are arranged in the containing cavity, the imaging chip corresponds to the optical filter in position and is arranged on an optical axis of the lens, the optical filter is arranged between the lens and the imaging chip in the optical axis direction of the lens, the base of the voice coil motor is fixed at the top of the base, and the lens is arranged in the voice coil motor and is fixedly connected to the carrier of the voice coil motor.

Furthermore, the camera module further comprises a protective film, and the protective film covers the end face, far away from the imaging chip, of the lens.

In the voice coil motor and the camera module provided by the invention, when the voice coil motor is electrified, the base and the carrier are attached through the first buckling part and the second buckling part, and the first buckling part and the second buckling part have no gap, so that dust or fine particles can be effectively prevented from entering the voice coil motor; moreover, use voice coil motor in this application, the camera module can replace the protection film that covers the body shape, has the foam or plastic pedestal with the plane protection film instead, can effective reduce cost, and convenient to use.

Drawings

Fig. 1 is an exploded perspective view of a voice coil motor.

Fig. 2 is a cross-sectional view of the voice coil motor shown in fig. 1 in a non-energized state.

Fig. 3 is a partial enlarged view of fig. 2 at III.

Fig. 4 is a cross-sectional view illustrating a power-on state of the voice coil motor shown in fig. 1.

Fig. 5 is a partial enlarged view of V in fig. 4.

Fig. 6 is a schematic structural diagram of a camera module using the voice coil motor shown in fig. 1.

Fig. 7 is an exploded perspective view of a voice coil motor according to a first embodiment of the present invention.

Fig. 8 is a cross-sectional view of the voice coil motor shown in fig. 7 in a non-energized state.

Fig. 9 is an enlarged view of a portion of fig. 8 at IX.

Fig. 10 is a cross-sectional view of the voice coil motor shown in fig. 7 in an energized state.

Fig. 11 is a partial enlarged view at XI in fig. 10.

Fig. 12 is a cross-sectional view of a voice coil motor according to a second embodiment of the present invention in a non-energized state.

Fig. 13 is a partially enlarged view at XIII in fig. 12.

Fig. 14 is a cross-sectional view of the voice coil motor shown in fig. 12 in an energized state.

Fig. 15 is a partial enlarged view at XV in fig. 14.

Fig. 16 is a cross-sectional view of a voice coil motor according to a third embodiment of the present invention in a non-energized state.

Fig. 17 is a cross-sectional view of a voice coil motor according to a fourth embodiment of the present invention in a non-energized state.

Fig. 18 is a schematic structural view of a camera module according to a fifth embodiment of the invention

Fig. 19 is a combined view of a voice coil motor and a lens according to a sixth embodiment of the present invention.

Fig. 20 is a partial enlarged view of fig. 19 at XIX.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

First embodiment

Referring to fig. 7, the vcm according to the first embodiment of the present invention includes a base 31, a housing 33, a carrier 35, a coil 37, a magnet 39, an upper spring 41 and a lower spring 43. The housing 33 is disposed on the base 31, and the housing 33 is hollow to form an accommodating chamber. The carrier 35, the coil 37, the magnet 39, the upper spring 41 and the lower spring 43 are all disposed in the accommodating cavity of the housing 33, the coil 37 is disposed in the carrier 35, the magnet 39 is disposed corresponding to the coil 37, the upper spring 41 is respectively connected to the carrier 35 and the housing 33, the lower spring 43 is respectively connected to the carrier 35 and the base 31 and electrically connected to the coil 37, the carrier 35 is disposed above the base 31 and can move relative to the base 31, so that the carrier 35 can be located at a first position close to the base 31 and a second position far away from the base 31. Referring to fig. 8 and 9, the top of the base 31 is provided with a first engaging portion 312, the bottom of the carrier 35 is provided with a second engaging portion 352 located at one side of the first engaging portion 312, the first engaging portion 312 is provided with a first engaging portion 314, and the second engaging portion 352 is provided with a second engaging portion 354 attached to the first engaging portion 314 when the carrier 35 is located at the second position.

In the voice coil motor of this embodiment, when the carrier 35 is located at the second position (i.e., when the voice coil motor is powered on), since the base 31 and the carrier 35 are attached to each other through the first fastening portion 314 and the second fastening portion 354, there is no gap between the first fastening portion 314 and the second fastening portion 354, and dust or fine particles can be effectively prevented from entering the voice coil motor.

In this embodiment, one side of the first engaging portion 312 of the base 31 protrudes toward the carrier 35, the first engaging portion 314 is a hook portion formed on one side of the first engaging portion 312, one side of the second engaging portion 352 of the carrier 35 protrudes toward the base 31, and the second engaging portion 354 is a hook portion formed on one side of the second engaging portion 352. Specifically, the first engaging portion 314 protrudes toward the second engaging portion 354, and the second engaging portion 354 protrudes toward the first engaging portion 314. When the carrier 35 is located at the second position, a surface of the second engaging portion 354 is attached to a surface of the first engaging portion 314; when the carrier 35 is located between the first position and the second position, the second engaging portion 354 is not attached to the first engaging portion 314, but the gap C between the second engaging portion 354 and the first engaging portion 312 is smaller due to the engagement therebetween, so that dust or fine particles can be effectively prevented from entering the voice coil motor.

Specifically, the hook of the first engaging portion 314 has a first inclined surface, the hook of the second engaging portion 354 has a second inclined surface, the first inclined surface is parallel to the second inclined surface, and when the carrier 35 is located at the second position, the first inclined surface is attached to the second inclined surface.

Specifically, the top of the base 31 is further provided with a first surface 315, an inner edge of the first surface 315 extends upward to form the first matching portion 312, and when the carrier 35 is located at the first position, a bottom surface of the second buckling portion 354 is attached to the first surface 315 of the base 31. Thus, when the voice coil motor is not powered on, the base 31 is attached to the carrier 35, and dust or fine particles can be effectively prevented from entering the voice coil motor.

Specifically, the top of the base 31 is also formed with a mounting groove 316 at the outer periphery of the base 31.

Specifically, the top of the base 31 is further provided with a flange 317 protruding toward one side of the carrier 35 inside the mounting groove 316, and the second fitting portion 352 extends into a groove between the flange 317 and the first fitting portion 312. Therefore, the path of dust entering the voice coil motor is more tortuous, and the dust entering can be reduced to a certain extent.

In this embodiment, the vcm further includes a pin 45, the pin 45 is fixedly connected to the base 31 and exposed from the bottom of the base 31, and the pin 45 is electrically connected to the lower spring 43, so that the coil 37 is electrically connected to an external circuit. Specifically, a portion of the pin 45 may be embedded in the base 31 by insert molding, for example.

In this embodiment, the housing 33 is fixedly connected to the top of the base 31. Specifically, the lower end of the housing 33 extends into the mounting groove 316 of the base 31. Thus, the housing 33 is more conveniently snapped onto the base 31.

Specifically, one end of the housing 33 away from the base 31 is provided with a through hole 332 communicated with the accommodating cavity for the lens of the camera module to extend out. Specifically, the housing 33 may be an iron shell.

In this embodiment, the coil 37 is wound around the outer periphery of the carrier 35. The coil 37 is electrically connected to an external circuit through the lower spring 43 and the pin 45, thereby energizing the coil 37. When the coil 37 is powered on, an ampere force can be generated under the action of the magnet 39 to push the carrier 35 to drive the lens to move linearly, so that the focusing of the lens is realized, and the ampere force generated correspondingly is different due to different current magnitudes in the coil 37. The upper spring 41 and the lower spring 43 serve to hold down the carrier 35 for smooth movement and return action.

In the voice coil motor of the present embodiment, referring to fig. 8 and 9, when the voice coil motor is not powered on, the bottom surface of the second fastening portion 354 is attached to the first surface 315 of the base 31 to eliminate the gap, and the gap C between the second fastening portion 354 and the first matching portion 312 is small, so as to effectively prevent dust or fine particles from entering the voice coil motor; referring to fig. 10 and 11, when the voice coil motor is powered on, the carrier 35 moves upward relative to the base 31, so that the second engaging portion 354 and the first engaging portion 314 are attached to each other to eliminate a gap, thereby effectively blocking dust or fine particles from entering the voice coil motor.

Second embodiment

Referring to fig. 12 and 13, the voice coil motor of the second embodiment of the present invention is similar to the voice coil motor of the first embodiment, and the difference therebetween is that the first engaging portion 314 of the base 31 is two hook portions formed on two sides of the first engaging portion 312, the carrier 35 includes two second engaging portions 352, the two second engaging portions 352 are respectively located on two sides of the first engaging portion 312, the second engaging portion 354 is a hook portion formed on the second engaging portion 352, and each second engaging portion 354 protrudes toward the first engaging portion 312.

In the voice coil motor of the present embodiment, since the two second engaging portions 354 are provided, and there are two attaching positions between the carrier 35 and the base 31, it is better to prevent dust or fine particles from entering the voice coil motor.

Other structures of this embodiment are similar to those of the voice coil motor of the first embodiment, and are not described herein again.

In the voice coil motor of the present embodiment, referring to fig. 12 and 13, when the voice coil motor is not powered on, the bottom surfaces of the two second fastening portions 354 are both attached to the first surface 315 of the base 31 to eliminate a gap, and the gap C between the second fastening portion 354 and the first matching portion 312 is small, so that dust or fine particles can be effectively prevented from entering the voice coil motor; referring to fig. 14 and 15, when the voice coil motor is powered on, the carrier 35 moves upward relative to the base 31, so that the two second fastening portions 354 respectively engage with the first fastening portion 314 to eliminate a gap, thereby effectively blocking dust or fine particles from entering the voice coil motor.

Third embodiment

Referring to fig. 16, the voice coil motor of the third embodiment of the present invention is similar to the voice coil motor of the first embodiment, and the difference is that the first fastening portion 314 is a bending portion located at one side of the first matching portion 312, the first fastening portion 314 includes a matching bottom surface 3140, the second fastening portion 354 is a bending portion located at one side of the second matching portion 352, the second fastening portion 354 includes a matching top surface 3540, the matching bottom surface 3140 and the matching top surface 3540 are both planar and parallel to each other, and when the carrier 35 is located at the second position, the matching bottom surface 3140 and the matching top surface 3540 are attached to each other.

Other structures of the present embodiment are similar to the voice coil motor of the first embodiment, and are not repeated herein.

When the voice coil motor is not powered on, the bottom surface of the second fastening portion 354 is attached to the first surface 315 of the base 31 to eliminate a gap, and the gap C between the second fastening portion 354 and the first matching portion 312 is small, so that dust or fine particles can be effectively prevented from entering the voice coil motor; when the voice coil motor is powered on, the carrier 35 moves upward relative to the base 31, and the matching bottom surface 3140 is attached to the matching top surface 3540, so that a gap is eliminated, and dust or fine particles can be effectively prevented from entering the voice coil motor.

Fourth embodiment

Referring to fig. 17, a voice coil motor according to a fourth embodiment of the present invention is similar to the voice coil motor according to the first embodiment, and the difference therebetween is that the first engaging portion 314 is a bent portion located at one side of the first engaging portion 312, the first engaging portion 314 includes an engaging bottom surface 3140, a locking groove 3142 is formed on the engaging bottom surface, the second engaging portion 354 is a bent portion located at one side of the second engaging portion 352, the second engaging portion 354 includes an engaging top surface 3540, a locking hook 3542 facing the locking groove 3142 is formed on the engaging top surface 3540, and the locking hook 3542 is used to be locked into the locking groove 3142. It is understood that the locking groove 3142 can also be disposed on the second fastening portion 354, and the hook 3542 is correspondingly disposed on the first fastening portion 314.

Other structures of this embodiment are similar to those of the voice coil motor of the first embodiment, and are not described herein again.

When the voice coil motor is not powered on, the bottom surface of the second fastening portion 354 is attached to the first surface 315 of the base 31 to eliminate a gap, and the gap C between the second fastening portion 354 and the first matching portion 312 is small, so that dust or fine particles can be effectively prevented from entering the voice coil motor; when the voice coil motor is powered on, the carrier 35 moves upward relative to the base 31, so that the hooks 3542 are clamped in the clamping grooves 3142, gaps are eliminated, and dust or fine particles can be effectively prevented from entering the voice coil motor.

Fifth embodiment

Referring to fig. 18, the camera module of the fifth embodiment includes a base 61, a circuit board 63, a lens 65, and the voice coil motor of the first embodiment.

In this embodiment, a containing cavity 612 is formed in the base 61, an imaging chip 67 and a filter 69 are arranged in the containing cavity 612, the positions of the imaging chip 67 and the filter 69 correspond to each other and are arranged on the optical axis of the lens 65, and the filter 69 is arranged between the lens 65 and the imaging chip 67 in the optical axis direction of the lens 65. Specifically, a boss 614 is provided on the inner wall of the base 61, the filter 69 is provided on the boss 614, and the imaging chip 67 is located below the boss 614. Of course, this is not a limitation, and in other embodiments, the imaging chip 67 and the filter 69 may be located on the same side of the boss 614.

In this embodiment, the circuit board 63 is disposed at the bottom of the base 61, and the imaging chip 67 is fixed and electrically connected to the circuit board 63. The circuit board 63 is further provided with a connector to realize signal transmission between the external circuit and the circuit board 63.

In this embodiment, the base 31 of the voice coil motor is fixed on the top of the base 61, and the lens 65 is installed in the voice coil motor and fixedly connected to the carrier 35 of the voice coil motor to move up and down with the carrier 35 relative to the base 31, so as to achieve zooming.

Specifically, the lens 65 includes a lens barrel fixedly connected to the carrier 35 and a lens group mounted in the lens barrel. In particular, the lens barrel may be connected to the carrier 35 by means of a screw connection or gluing.

In this embodiment, the camera module further includes a protection film 71, and the protection film 71 covers an end surface of the lens 65 away from the imaging chip 67. Specifically, the protective film 71 may be a flat film. Since the voice coil motor of the first embodiment has a good dustproof effect, it is not necessary to cover the protective film 71 on the housing 33 during transportation of the camera module, and it is only necessary to cover the lens 65, thereby reducing the cost of the camera module.

As shown in fig. 6, in the prior art, for the dustproof effect, the protection film 29 with foam or plastic seat body similar to the shape of the cover body is usually used as the protection film of the camera module, and by using the voice coil motor described in this application, the camera module can replace the protection film 29 with foam or plastic seat body with the flat protection film 71, which can effectively reduce the cost and is convenient to use.

It is to be understood that the voice coil motor in the camera module of this embodiment may also adopt the voice coil motor described in any one of the second to fourth embodiments.

Sixth embodiment

Referring to fig. 19 and 20 in combination with fig. 1, a camera module according to a sixth embodiment of the present invention includes a lens 54 and a voice coil motor, wherein the lens 54 is mounted on the voice coil motor, and the voice coil motor includes a base, a housing, a carrier 53, a coil, a magnet, an upper spring, and a lower spring. The shell is arranged on the base, and the shell is hollow to form an accommodating cavity. Carrier 53, coil, magnet, upper spring and lower spring all locate the holding intracavity of casing, and carrier 53 is located to the coil, and the magnet corresponds the coil and establishes, and the upper spring is connected respectively in carrier 53 and casing, and the lower spring is connected respectively in carrier 53 and base to electric connection is in the coil, and carrier 53 locates the base top, and can move relative to the base, makes carrier 53 can be located the first position that is close to the base and keeps away from the second position of base. The lens 54 is disposed within the carrier 53 to move with the carrier 53 to achieve focusing.

Specifically, the lens 54 includes a lens holder 542 and a lens assembly disposed in the lens holder 542, and the lens holder 542 is connected to the inner wall of the carrier 53. The lens holder 542 has a first fitting portion 5422 on an outer wall thereof, and the carrier 53 has a second fitting portion 532 on an inner wall thereof for fitting with the first fitting portion 5422.

Specifically, the first fitting portion 5422 includes a first extending portion 5423 and a first latching portion 5424, the first extending portion 5423 extends from the main body portion of the lens holder 542 toward the outside, the first latching portion 5424 is connected to an end of the first extending portion 5423 away from the main body portion of the lens holder 542, so that a receiving groove 5425 is formed between the first latching portion 5424 and the main body portion of the lens holder 542. The second matching portion 532 includes a second extending portion 5322 and a second buckling portion 5323, the second extending portion 5322 extends from the main portion of the carrier 53 toward the inner side, the second buckling portion 5323 is connected to an end of the second extending portion 5322 away from the main portion of the carrier 53, so that a slot 5325 is formed between the second buckling portion 5322 and the main portion of the carrier 53. The second engaging portion 5323 is inserted into the receiving groove 5425 to form an engagement with the first engaging portion 5424. This can effectively block dust or fine particles from entering the voice coil motor.

Specifically, an external thread is disposed on an outer side wall of the first engaging portion 5424, an internal thread is disposed on an inner wall of the carrier 53, and the lens mount 542 is connected to the internal thread of the carrier 53 through the external thread of the first engaging portion 5424.

In this embodiment, the carrier 53 and the lens mount 542 are fixed relatively, and the second engaging portion 5323 of the carrier 53 is inserted into the receiving groove 5425 to form an engaging with the first engaging portion 5424 of the lens mount 542, so that dust or fine particles can be effectively prevented from entering the voice coil motor regardless of whether the voice coil motor is powered on.

Of course, the camera module in this embodiment also only needs to use the plane protection film to achieve a better dustproof effect.

In this document, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 can be understood in a specific case to those of ordinary skill in the art.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

As used herein, the ordinal adjectives "first", "second", etc., used to describe an element are merely to distinguish between similar elements and do not imply that the elements so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.

As used herein, the meaning of "a plurality" or "a plurality" is two or more unless otherwise specified.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The utility model provides a voice coil motor, characterized in that, includes base (31) and carrier (35), carrier (35) are located base (31) top, and can be relative base (31) remove, make carrier (35) can be located and be close to the first position of base (31) and keep away from the second position of base (31), the top of base (31) is equipped with first cooperation portion (312), the bottom of carrier (35) is equipped with second cooperation portion (352), first cooperation portion (312) are equipped with first buckling parts (314), second cooperation portion (352) are equipped with carrier (35) are located when the second position with second buckling parts (354) of first buckling parts (314) laminating.

2. The voice coil motor of claim 1, wherein a side of the first fitting portion (312) of the base (31) is protruded toward the carrier (35), the first engaging portion (314) is a hook portion formed at a side of the first fitting portion (312), a side of the second fitting portion (352) of the carrier (35) is protruded toward the base (31), and the second engaging portion (354) is a hook portion formed at a side of the second fitting portion (352).

3. The voice coil motor of claim 1, wherein the first engagement portion (312) of the base (31) is protruded toward both sides, the first engagement portion (314) is two hook portions formed at both sides of the first engagement portion (312), the carrier (35) includes two second engagement portions (352), the two second engagement portions (352) are respectively located at both sides of the first engagement portion (312), both of the second engagement portions are protruded toward the first engagement portion, and the second engagement portion (354) is a hook portion formed at the second engagement portion (352).

4. The voice coil motor according to claim 2 or 3, wherein the hook portion of the first engagement portion (312) is provided with a first inclined surface, the hook portion of the second engagement portion (352) is provided with a second inclined surface, the first inclined surface being parallel to the second inclined surface, the first inclined surface and the second inclined surface abutting when the carrier (35) is in the second position.

5. The vcm according to claim 1, wherein the first engaging portion (314) is a bending portion located at one side of the first engaging portion (312), and the second engaging portion (354) is a bending portion located at one side of the second engaging portion (352);

the first buckling part (314) comprises a matching bottom surface (3140), the second buckling part (354) comprises a matching top surface (3540), the matching bottom surface (3140) and the matching top surface (3540) are both planes, and the matching bottom surface (3140) can be attached to the matching top surface (3540) when the carrier (35) is located at the second position.

6. The vcm according to claim 5, wherein one of the bottom mating surface (3140) and the top mating surface (3540) is formed with a locking notch (3142), and the other is formed with a locking hook (3542) facing the locking notch (3142), the locking hook (3542) being capable of being locked into the locking notch (3142) when the carrier (35) is located at the second position.

7. The vcm (voice coil motor) of claim 1, wherein the top of the base (31) is further provided with a first surface (315), an inner edge of the first surface (315) extends upward to form the first engaging portion (312), and a bottom surface of the second engaging portion (354) is engaged with the first surface (315) of the base (31) when the carrier (35) is located at the first position.

8. The vcm according to claim 1, further comprising a housing (33), wherein the housing (33) is disposed on the base (31), the housing (33) is hollow to form a receiving cavity, the carrier (35) is disposed in the receiving cavity of the housing (33), a mounting groove (316) is further formed on the top of the base (31) and located on the outer periphery of the base (31), and the housing (33) extends into the mounting groove (316) of the base (31);

the top of the base (31) is further provided with a flange (317) which is positioned on the inner side of the mounting groove (316) and protrudes towards one side of the carrier (35), and the second matching part (352) extends into a groove between the flange (317) and the first matching part (312).

9. A camera module, characterized by, including base (61), circuit board (63), camera lens (65) and the voice coil motor of any one of claims 1-8, form in base (61) and hold cavity (612), be equipped with imaging chip (67) and light filter (69) in holding cavity (612), imaging chip (67) with light filter (69) position corresponds, and locates on the optical axis of camera lens (65), light filter (69) are in the optical axis direction of camera lens (65) and be located camera lens (65) with between imaging chip (67), voice coil motor base (31) are fixed in the top of base (61), camera lens (65) install in the voice coil motor to fixed connection in the voice coil motor carrier (35).

10. The camera module according to claim 9, further comprising a protective film (71), wherein the protective film (71) covers an end surface of the lens (65) away from the imaging chip (67).

Images