Voice coil motor and zoom lens

Abstract

The voice coil motor comprises a magnet yoke, a magnet structure and a driving coil, the magnet structure is arranged on the magnet yoke, the magnet structure comprises two magnetic circuit assemblies which are arranged at intervals in the vertical direction, and each magnetic circuit assembly comprises two magnets which are arranged at intervals in the vertical direction. The magnetic poles of the sides, close to each other, of the two magnets are different, and a magnetic gap is formed between the two magnets. The driving coil comprises two wire sets which are oppositely arranged in the vertical direction, one wire set is located in a magnetic gap formed by the two magnets of one magnetic circuit assembly, the other wire set is located in a magnetic gap formed by the two magnets of the other magnetic circuit assembly, the two magnets can generate magnetic fields which are strong enough, and therefore the magnetic field intensity of the two magnets can be improved. When the moving stroke of the driving coil is long, the driving coil can be located in a strong magnetic field, the two side portions of the driving coil are synchronously driven, the driving force is strong, and the problems that an existing VCM motor is limited by the size, and the design stroke of the VCM motor is relatively small are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of zoom lenses, in particular to a voice coil motor and a zoom lens. Background Art

[0002] The voice coil motor (VCM) is a new type of linear motor designed based on the Ampere force principle. It is named because the principle is similar to that of a speaker. It mainly consists of three parts: a permanent magnet, a coil, and a yoke. The principle is that when the coil is energized, a force will be generated in the magnetic field. The magnitude of the force is proportional to the current applied to the coil. According to the Lorentz force principle, a thrust will be generated to drive the coil to move axially in the air gap. As the direction and value of the current in the coil change, the coil moves back and forth in a straight line. In theory, the voice coil motor has the advantages of high response, high acceleration, simple structure, and good force characteristics. It has a simple structure, small size, low noise, high specific thrust, large acceleration (more than 20 times the acceleration of gravity), fast response speed (millisecond level), high precision (up to 1-5μm), easy maintenance, and high reliability.

[0003] In the new long-stroke VCM motor structure in the prior art, the rotor movement stroke is relatively long and the motor power is relatively large; however, when the stroke is too long, the magnetic force in the middle of the magnet will be too small, and the motor power will be greatly affected. The longer the structure length, the smaller the magnetic field, and the smaller the driving force. If the driving force needs to be increased, the volume needs to be continuously increased; that is, the structural stroke has a certain limit, and the driving force is also limited, and the volume is also subject to certain restrictions. Utility Model Content

[0004] The main purpose of the utility model is to provide a voice coil motor and a zoom lens, aiming to solve the problem that the existing VCM motor is limited by volume and the design stroke of the VCM motor is relatively small.

[0005] In order to achieve the above-mentioned object, the utility model provides a voice coil motor, wherein the voice coil motor comprises:

[0006] Mounting seat;

[0007] A magnet structure is provided on the mounting seat, the magnet structure includes two magnetic circuit components spaced apart from each other upward, each magnetic circuit component includes two magnets spaced apart from each other upward, the magnetic poles of the two magnets on a side close to each other are arranged differently, and the two magnets form a magnetic gap extending in a front-to-back direction; and,

[0008] The driving coil includes two wire groups which are arranged opposite to each other in an upward and downward direction, wherein one of the wire groups is located in a magnetic gap formed by two magnets of one magnetic circuit component, and the other wire group is located in a magnetic gap formed by two magnets of another magnetic circuit component. When the driving coil is energized, the two magnetic circuit components are used to generate electromagnetic force with the driving coil to drive the driving coil to move in a forward and backward direction.

[0009] Optionally, each of the magnets includes a plurality of magnets arranged in sequence and spaced apart from each other in the front-to-back direction.

[0010] Optionally, the mounting seat is configured as a yoke, the yoke forms a mounting groove with an opening, the opening is arranged on the left and right upward side of the yoke, the opening is extended in the front and rear directions, and the magnet structure and the drive coil are both installed in the mounting cavity.

[0011] Optionally, the magnetic yoke includes two first magnetic yokes extending in the front-rear direction and spaced apart from each other upwardly and downwardly;

[0012] A side of each of the first magnetic yokes facing another of the first magnetic yokes is fixed to one of the magnets.

[0013] Optionally, two mutually adjacent side surfaces of the first yokes are each provided with a limiting groove, and one of the magnets is installed in a corresponding one of the limiting grooves.

[0014] Optionally, the magnetic yoke further includes two second magnetic yokes spaced apart in a front-to-back upward direction, and the two second magnetic yokes are respectively arranged at two ends of the two first magnetic yokes in a front-to-back upward direction.

[0015] Optionally, the magnetic yoke further includes a third magnetic yoke disposed at one side end of the two first magnetic yokes facing left and right and upward, and the two first magnetic yokes, the two second magnetic yokes and the third magnetic yoke together enclose the installation cavity.

[0016] Optionally, the magnetic yoke is further provided with a fourth magnetic yoke extending in the front-rear direction, and the fourth magnetic yoke is arranged in the mounting groove and located between the two magnetic circuit components;

[0017] The fourth magnetic yoke is provided with a magnet on two upper and lower sides respectively.

[0018] A zoom lens, comprising:

[0019] A lens assembly, comprising an adjustable lens group that can be movably arranged in a front-rear direction; and

[0020] A voice coil motor, wherein a driving coil of the voice coil motor is fixedly connected to the adjustment mirror assembly;

[0021] Wherein, the voice coil motor comprises:

[0022] Mounting seat;

[0023] A magnet structure is provided on the mounting seat, the magnet structure includes two magnetic circuit components spaced apart from each other upward, each magnetic circuit component includes two magnets spaced apart from each other upward, the magnetic poles of the two magnets on a side close to each other are arranged differently, and the two magnets form a magnetic gap extending in a front-to-back direction; and,

[0024] The driving coil includes two wire groups which are arranged opposite to each other in an upward and downward direction, wherein one of the wire groups is located in a magnetic gap formed by two magnets of one magnetic circuit component, and the other wire group is located in a magnetic gap formed by two magnets of another magnetic circuit component. When the driving coil is energized, the two magnetic circuit components are used to generate electromagnetic force with the driving coil to drive the driving coil to move in a forward and backward direction.

[0025] Optionally, a plurality of the driving coils are provided, a plurality of the adjusting lens groups are provided, and each of the adjusting lens groups is fixedly connected to a corresponding driving coil.

[0026] In the technical solution provided by the utility model, since the driving coil is arranged in a ring shape, it has two wire groups arranged opposite to each other in the upper and lower directions, the magnetic structure includes two magnetic circuit components, each magnetic circuit component includes a magnet with two magnetic poles arranged differently, and a magnetic gap is formed between the two magnets. One of the wire groups is placed in the magnetic gap formed by the two magnets of one magnetic circuit component, and the other wire group is placed in the magnetic gap formed by the two magnets of the other magnetic circuit component. When the driving coil is energized, the two wire groups are respectively placed in the magnetic field generated by the two magnets. According to Ampere's law, the two wires The two groups are all affected by the Ampere force, so that the upper and lower sides of the driving coil can move under the action of the Ampere force. Compared with the prior art in which one side of the coil is in the magnetic field, or magnets are set on both sides of the coil, the utility model adopts that both sides of the driving coil are in the magnetic gap formed by the two magnets. The two magnets can generate a sufficiently strong magnetic field. When the active stroke of the driving coil is long, it can also be in a strong magnetic field. In addition, the two sides of the driving coil are driven synchronously, and the driving force is also strong, so as to solve the problem that the existing VCM motor is limited by volume and the design stroke of the VCM motor is relatively small. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A three-dimensional schematic diagram of an embodiment of a voice coil motor provided by the utility model;

[0029] Figure 2 for Figure 1 An exploded diagram of the voice coil motor in Figure 1;

[0030] Figure 3 A three-dimensional schematic diagram of the adjustment lens assembly of the zoom lens provided by the utility model;

[0031] Figure 4 The present invention provides a stereoscopic schematic diagram of an adjustment lens group and a voice coil motor in a zoom lens.

[0032] Description of Figure Numbers:

[0033] Label name Label name 100 Voice Coil Motor 2 Magnet structure 1 Mounting Block 20 Magnetic circuit components 11 First yoke 21 magnet 11a Limit slot 211 magnet 12 Second yoke 3 Drive coil 13 Third yoke 31 Wire set 14 Fourth yoke 40 Adjustment mirror set

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. 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 utility model.

[0038] In the new long-stroke VCM motor structure in the prior art, the rotor movement stroke is relatively long and the motor power is relatively large; however, when the stroke is too long, the magnetic force in the middle of the magnet will be too small, and the motor power will be greatly affected. The longer the structure length, the smaller the magnetic field, and the smaller the driving force. If the driving force needs to be increased, the volume needs to be continuously increased; that is, the structural stroke has a certain limit, and the driving force is also limited, and the volume is also subject to certain restrictions.

[0039] Mainly for the existing VCM motor design of this type of structure, single yoke single-side magnet or double yoke single-side magnet drive has the following defects:

[0040] 1: The magnetic field strength of the VCM motor with a single yoke magnet or a double yoke single-sided magnet drive coil is low, and the driving force is relatively low.

[0041] 2: Single yoke magnet or double yoke single-sided magnet drive coil VCM motor, due to the driving force, volume and other factors, the design stroke of the VCM motor is relatively small.

[0042] 3: Single yoke magnet or double yoke single-sided magnet drive coil VCM motor, in order to achieve greater driving force, requires thicker and wider magnets and large yokes, resulting in relatively high costs.

[0043] In order to solve the above problems, the utility model provides a voice coil motor. Figure 1 A three-dimensional schematic diagram of an embodiment of a voice coil motor provided by the utility model; Figure 2 for Figure 1 An exploded diagram of the voice coil motor in Figure 1;

[0044] Figure 3 A three-dimensional schematic diagram of the adjustment lens assembly of the zoom lens provided by the utility model; Figure 4The present invention provides a stereoscopic schematic diagram of an adjustment lens group and a voice coil motor in a zoom lens.

[0045] See also Figure 1 to Figure 2 The voice coil motor 100 includes a mounting base 1, a magnet structure 2 and a driving coil 3, wherein the magnet structure 2 is arranged on the mounting base 1, and the magnet structure 2 includes two magnetic circuit components 20 arranged in an upward and downward manner, each of the magnetic circuit components 20 includes two magnets 21 arranged in an upward and downward manner, and the magnetic poles of the two magnets 21 on the side close to each other are arranged differently, and the two magnets 21 form a magnetic gap extending in the front-to-back direction; the driving coil 3 includes two wire groups 31 arranged in an upward and upward manner opposite to each other, wherein one of the wire groups 31 is in a magnetic gap formed by the two magnets 21 of one magnetic circuit component 20, and the other wire group 31 is in a magnetic gap formed by the two magnets 21 of the other magnetic circuit component 20, and when the driving coil 3 is energized, the two magnetic circuit components 20 are used to generate electromagnetic force with the driving coil 3 to drive the driving coil 3 to move in the front-to-back direction.

[0046] It should be noted that the two wire groups 31 of the drive coil 3 are arranged opposite to each other. When power is turned on, the current directions of the two wire groups 31 are set in opposite directions. In order to make the directions of the Ampere forces generated by the two wire groups 31 consistent, the directions of the magnetic poles of the two magnets 21 of each magnetic circuit component 20 can be adjusted. For example, when a magnetic field is formed between the two magnets 21 of one magnetic circuit component 20 that passes downward through the palm of the hand, a magnetic field is formed between the two magnets 21 of the other magnetic circuit component 20 that passes upward through the palm of the hand. In this way, when the currents of the two wire groups 31 are reversed, the Ampere forces generated can eventually be directed forward or backward at the same time, thereby generating double the driving force.

[0047] It should also be noted that the two wire groups 31 of the drive coil 3 can be arranged as two sides of the drive coil 3 in the up-down direction, or at two sides in the left-right direction. Of course, correspondingly, the two magnetic circuit components 20 are arranged at intervals in the left-right direction, and each magnetic circuit component 20 includes two magnets 21 arranged at intervals in the left-right direction. Of course, the two sections of the drive coil 3 on which the two wire groups 31 are located are not limited to the above examples. The technicians in the relevant field may make other changes under the inspiration of the technical essence of the embodiments of this specification, but as long as the functions and effects achieved are the same or similar to those of the embodiments of this specification, they should be covered within the protection scope of the embodiments of this specification.

[0048] It should also be noted that the material of the mounting base 1 can be set to a non-magnetic material, and of course can also be set to a magnetic yoke, which is not limited in this embodiment.

[0049] In the technical solution provided by the utility model, since the driving coil 3 is arranged in a ring shape, it has two wire groups 31 arranged opposite to each other in the upper and lower directions. The magnetic structure 2 includes two magnetic circuit components 20, and each magnetic circuit component 20 includes two magnets 21 with different magnetic poles. A magnetic gap is formed between the two magnets 21. One of the wire groups 31 is placed in the magnetic gap formed by the two magnets 21 of one magnetic circuit component 20, and the other wire group 31 is placed in the magnetic gap formed by the two magnets 21 of the other magnetic circuit component 20. When the driving coil 3 is energized, the two wire groups 31 are respectively placed in the magnetic field generated by the two magnets 21. According to Ampere's law, the two wire groups 31 are Affected by the Ampere force, the upper and lower sides of the driving coil 3 can move under the action of the Ampere force. Compared with the prior art in which one side of the coil is in the magnetic field, or magnets 211 are set on both sides of the coil, the utility model adopts that both sides of the driving coil 3 are in the magnetic gap formed by the two magnets 21. The two magnets 21 can generate a sufficiently strong magnetic field. When the active stroke of the driving coil 3 is longer, it can also be in a stronger magnetic field, and the two sides of the driving coil 3 are driven synchronously, and the driving force is also stronger. That is to say, under the condition of a certain volume, the driving force can be super large, so as to solve the problem that the existing VCM motor is limited by volume and the design stroke of the VCM motor is relatively small.

[0050] Specifically, in this embodiment, each magnet 21 includes a plurality of magnets 211 arranged in sequence along the front-back direction. In this way, the magnet 211 can be used as a minimum unit to provide a magnetic field, and the voice coil motor 100 can reasonably set the number of the magnets 211 according to the required length of the driving stroke, and set a plurality of the magnets 211, and each magnet 211 is also more stable. In addition, the volume requirement of the magnet is small, so that the volume requirement of the mounting seat 1 is small and the required cost is low.

[0051] In this embodiment, the mounting seat 1 is configured as a magnetic yoke, and the magnetic yoke forms a mounting groove with an opening, and the opening is arranged on the left and right upward side of the magnetic yoke, and the opening is extended in the front and rear directions, and the magnetic structure 2 and the driving coil 3 are both installed in the mounting cavity. It should be noted that the magnetic yoke is a magnetic conductive material, which refers to a material that can effectively concentrate and guide magnetic lines of force, generally set to iron, steel, ferrite, etc. The magnetic yoke surrounds the outer periphery of the plurality of magnets 21, which can limit the loss of the magnetic field, improve the utilization rate of the magnetic field, and protect the coil from external interference.

[0052] Specifically, in this embodiment, the magnetic yoke includes two first magnetic yokes 1 extending in the front-to-back direction and spaced apart in the up-down direction; each first magnetic yoke 1 is fixed to a magnet 21 on one side facing the other first magnetic yoke 1. The first magnetic yoke 1 guides the magnetic lines of force from one extreme point of the magnet 21 to the extreme point of the other magnet 21, forming a closed magnetic loop to provide a low magnetic resistance path, so that the magnetic lines of force can flow more effectively, thereby increasing the strength and stability of the magnetic field. In this way, each magnet 21 is fixedly attached to one side of the corresponding first magnetic yoke 1, limiting the loss of the magnetic field in the up-down direction, so as to improve the utilization rate of the magnetic field in the up-down direction.

[0053] Specifically, in this embodiment, the two sides of the first yokes 1 that are close to each other are both concavely provided with a limiting groove 11a, and one of the magnets 21 is installed in a corresponding limiting groove 11a. In this way, by providing the installation groove to install the magnet 21, the magnet 21 is limited in the installation groove, and the structure is more stable.

[0054] Furthermore, in this embodiment, the magnetic yoke further includes two second magnetic yokes 2, which are spaced apart in the front-back upward direction, and the two second magnetic yokes 2 are respectively arranged at the two ends of the two first magnetic yokes 1 in the front-back upward direction. In this way, the two second magnetic yokes 2 are extended to the ends or ends of the voice coil motor 100 to further enhance the focusing effect of the magnetic field, provide additional mechanical protection, and limit the driving coil 3 to a certain extent.

[0055] Furthermore, in this embodiment, the yoke also includes a third yoke 3 disposed at one side end of the two first yokes 1 facing left and right, and the two first yokes 1, the two second yokes 2 and the third yoke 3 together enclose the installation cavity. By providing the third yoke 3, the magnetic field within the side range generated by the magnet structure 2 can also be guided and constrained to further enhance the focusing effect of the magnetic field. And the voice coil motor 100 can be fixedly connected to the lens barrel of the lens through the third yoke 3.

[0056] Specifically, in this embodiment, the magnetic yoke is further provided with a fourth magnetic yoke 4 extending in the front-back direction, the fourth magnetic yoke 4 is provided in the installation slot, and is located between the two magnetic circuit components 20; the fourth magnetic yoke 4 is provided with a magnet 21 on the upper and lower sides thereof. The two magnets 21 are in close contact with the driving coil 3. This can not only enhance the focusing effect of the magnetic field, but also transmit the magnetic field to the driving coil 3, thereby improving the utilization rate of the magnetic field.

[0057] See also Figure 3 to Figure 4The utility model also provides a zoom lens, which is arranged in a photographic, video recording and various intelligent terminals (such as mobile phones, cars, robots, etc.), and comprises a lens assembly and a voice coil motor 100, wherein the lens assembly comprises an adjustment lens group 40 that can be movably arranged in the front-back direction; the driving coil 3 of the voice coil motor 100 is fixedly connected to the adjustment lens group 40. Since the zoom lens comprises the voice coil motor 100, the specific structure of the voice coil motor 100 refers to the above-mentioned embodiment. Since the voice coil motor 100 of the zoom lens adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0058] In the technical solution provided by the utility model, when the lens is set as a zoom lens, a lens group is required to achieve zooming or focusing. By fixing the adjustment lens group 40 to the voice coil motor 100, the driving coil 3 has a longer movable stroke, so that the lens focusing and zooming operations can be performed more quickly. A larger lens movement range is provided, thereby achieving a larger zoom range. This means that focusing and zooming can be performed within a wider focal length range to meet different shooting requirements. Since the driving stroke of the voice coil motor 100 is longer, the voice coil motor 100 can achieve more precise lens focusing and zooming control of the adjustment lens group 40, and can achieve fine-tuning, so that the focus and zoom multiple adjustment are more accurate and precise. And due to the longer stroke of the voice coil motor 100, it can also achieve quieter operation and reduce the noise generated when the lens is focused and zoomed.

[0059] Furthermore, the focusing function is usually achieved by the movement of one or more lens assemblies. The movement of these lens assemblies can change the focus of the image, so that the zoom lens can focus clearly on subjects at different distances. The focusing function is usually achieved by a manual focus ring, an automatic focus system, or a hybrid focus system. In this embodiment, the drive coil 3 is provided with a plurality of, and the adjustment lens group 40 is provided with a plurality of, each of the adjustment lens groups 40 is fixedly connected to a corresponding one of the drive coils 3. In this way, the lens group that needs to be automatically adjusted can be connected to a corresponding one of the drive coils 3, so that its automatic focusing or zooming can be achieved.

[0060] It is understandable that the zoom lens further includes a control device and a position measuring device, and the control device is electrically connected to the position measuring device and the voice coil motor 100, and is used to control the voice coil motor 100 to operate according to the position measuring device, thereby adjusting the position of each adjustment lens group 40.

[0061] 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 changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A voice coil motor, characterized in that: include: Mounting seat; A magnet structure is provided on the mounting seat, the magnet structure includes two magnetic circuit components spaced apart from each other upward, each magnetic circuit component includes two magnets spaced apart from each other upward, the magnetic poles of the two magnets on a side close to each other are arranged differently, and the two magnets form a magnetic gap extending in a front-to-back direction; and, The driving coil includes two wire groups which are arranged opposite to each other in an upward and downward direction, wherein one of the wire groups is located in a magnetic gap formed by two magnets of one magnetic circuit component, and the other wire group is located in a magnetic gap formed by two magnets of another magnetic circuit component. When the driving coil is energized, the two magnetic circuit components are used to generate electromagnetic force with the driving coil to drive the driving coil to move in a forward and backward direction.

2. The voice coil motor according to claim 1, wherein: Each of the magnets comprises a plurality of magnets which are sequentially arranged at intervals along the front-rear direction.

3. The voice coil motor according to claim 1, wherein: The mounting seat is configured as a yoke, the yoke forms a mounting groove with an opening, the opening is arranged on the left and right upward side of the yoke, the opening is extended in the front and rear directions, and the magnet structure and the drive coil are both installed in the mounting groove.

4. The voice coil motor according to claim 3, wherein: The magnetic yoke comprises two first magnetic yokes extending in the front-rear direction and spaced apart from each other in the upper and lower directions; A side of each of the first magnetic yokes facing another of the first magnetic yokes is fixed to one of the magnets.

5. The voice coil motor according to claim 4, wherein: The side surfaces of the two first magnetic yokes that are close to each other are both concavely provided with limiting grooves, and one of the magnets is installed in a corresponding one of the limiting grooves.

6. The voice coil motor according to claim 4, wherein: The magnetic yoke further comprises two second magnetic yokes which are arranged in a front-to-back upward direction at intervals. The two second magnetic yokes are respectively arranged at two ends of the two first magnetic yokes in a front-to-back upward direction.

7. The voice coil motor according to claim 6, wherein: The magnetic yoke further includes a third magnetic yoke disposed at one side end of the two first magnetic yokes facing left and right and upward. The two first magnetic yokes, the two second magnetic yokes and the third magnetic yoke together enclose the installation groove.

8. The voice coil motor according to claim 3, wherein: The magnetic yoke is also provided with a fourth magnetic yoke extending in the front-rear direction, and the fourth magnetic yoke is arranged in the mounting groove and located between the two magnetic circuit components; The fourth magnetic yoke is provided with a magnet on two upper and lower sides respectively.

9. A zoom lens, characterized in that: include: The lens assembly comprises an adjustable lens group which can be movably arranged in the front-rear direction; as well as, The voice coil motor according to any one of claims 1 to 8, wherein the driving coil of the voice coil motor is fixedly connected to the adjustment mirror assembly.

10. The zoom lens according to claim 9, wherein: There are a plurality of the driving coils, there are a plurality of the adjusting lens groups, and each of the adjusting lens groups is fixedly connected to a corresponding driving coil.

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