CN219181611U - Driving device, camera module and electronic equipment - Google Patents
Driving device, camera module and electronic equipment Download PDFInfo
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- CN219181611U CN219181611U CN202222703011.9U CN202222703011U CN219181611U CN 219181611 U CN219181611 U CN 219181611U CN 202222703011 U CN202222703011 U CN 202222703011U CN 219181611 U CN219181611 U CN 219181611U
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Abstract
The application discloses drive arrangement, module and electronic equipment make a video recording, this drive arrangement includes: the lens assembly comprises an inner carrier, an outer carrier sleeved on the outer side of the inner carrier in a ring manner and a shell sleeved on the outer side of the outer carrier in a ring manner, wherein the inner carrier is provided with a first lens mounting position used for mounting a first lens; the outer carrier is provided with a second lens installation position coaxial with the first lens installation position, the second lens installation position is used for installing a second lens, and a focusing driving assembly is arranged between the outer carrier and the inner carrier; an anti-shake driving assembly is arranged between the shell and the outer carrier, a light passing hole coaxial with the optical axis is arranged on the shell, and the light passing hole is coaxial with the second lens mounting position; the focusing driving assembly is connected with the inner carrier and/or the outer carrier and used for driving the inner carrier to move along the optical axis direction relative to the outer carrier, and the anti-shake driving assembly is connected with the outer carrier and/or the outer shell and used for driving the outer carrier and the inner carrier to move together. The shooting effect of the camera module can be guaranteed.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to a driving device, a camera module and electronic equipment.
Background
With the development of technology, the photographing performance of the camera module is becoming more and more powerful. The existing camera module can automatically focus and automatically prevent shake during shooting, so that shooting experience of a user is improved.
In the related art, the lens assembly in the camera module is driven to automatically focus or automatically prevent shake, that is, the lens assembly can only move along the direction of the optical axis to automatically focus, or the lens assembly can only move along the direction perpendicular to the optical axis to automatically prevent shake, so, when the lens assembly is driven to automatically focus, other components are required to automatically prevent shake of the camera module, and when the lens assembly is driven to automatically prevent shake, the other components are required to automatically focus the camera module, so that a movement space is required to be reserved for movement of the other components, thereby resulting in larger size of the camera module.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a driving device, a camera module and electronic equipment, and can ensure the shooting effect of the camera module.
In order to solve the above technical problem, in a first aspect, the present utility model provides a driving device, which is applied in an image capturing module, the driving device includes:
The inner carrier is provided with a first lens installation position, and the first lens installation position is used for installing a first lens;
the outer carrier is sleeved on the outer side of the inner carrier, the outer carrier is provided with a second lens mounting position coaxial with the first lens mounting position, the second lens mounting position is used for mounting a second lens, and a focusing driving assembly is arranged between the outer carrier and the inner carrier;
the outer shell is sleeved on the outer side of the outer carrier, an anti-shake driving assembly is arranged between the outer shell and the outer carrier, a light passing hole coaxial with the optical axis is formed in the outer shell, and the light passing hole is coaxial with the second lens mounting position;
the focusing driving assembly is connected with the inner carrier and/or the outer carrier and used for driving the inner carrier to move along the optical axis direction relative to the outer carrier, and the anti-shake driving assembly is connected with the outer carrier and/or the shell and used for driving the outer carrier and the inner carrier to move together.
Because the first lens is arranged on the first lens mounting position, the focusing driving component is used for driving the inner carrier to move along the direction of the optical axis relative to the outer carrier, so that the focusing driving component can drive the first lens to move along the direction of the optical axis so as to realize the focusing function of the camera module.
The anti-shake driving assembly is used for driving the outer carrier and the inner carrier to move together, so that the anti-shake driving assembly can drive the first lens and the second lens to move together simultaneously so as to realize the anti-shake function of the camera module.
In addition, because the outside of carrier including outer carrier ring cover, the shell ring cover is in the outside of carrier outside, focus drive assembly sets up between outer carrier and interior carrier and be connected with outer carrier and interior carrier respectively, anti-shake drive assembly sets up between shell and outer carrier and be connected with shell and outer carrier respectively, consequently, compare in focusing drive assembly and lens subassembly connection, anti-shake drive assembly is connected with other parts, on the one hand, make the setting structure of focusing drive assembly and anti-shake drive assembly more compact, on the other hand, need not to reserve the space of motion for other parts, it is visible that above-mentioned structure can make the module miniaturization of making a video recording, the shooting effect of the module of making a video recording has also been guaranteed simultaneously.
In a possible implementation manner of the first aspect, the focusing driving assembly includes a focusing coil and a focusing magnet, one of the focusing coil and the focusing magnet is disposed on the outer carrier, the other one is disposed on the inner carrier, and the focusing coil and the focusing magnet can generate an ampere force for enabling the inner carrier to move along the optical axis direction in an energized state.
Therefore, after the focusing coil is electrified, a magnetic field is generated, ampere force capable of driving the inner carrier to move relative to the outer carrier along the optical axis direction is formed by the focusing coil and the focusing magnet, and when currents with different magnitudes are fed to the focusing coil, ampere force with different magnitudes is formed by the focusing coil and the focusing magnet, so that the inner carrier can be controlled to move for different distances; when current in different directions is introduced to the focusing coil, the focusing coil and the focusing magnet form ampere force in different directions, so that the inner carrier can be driven to move in different directions.
In a possible implementation manner of the first aspect, the inner carrier is provided with a first mounting through hole coaxial with the light passing hole, the first mounting through hole is the first lens mounting position, and/or the outer carrier is provided with a second mounting through hole coaxial with the light passing hole, and the second mounting through hole is the second lens mounting position.
Because the through hole is simple in structure and convenient to process, when the first lens installation position is the first installation through hole and/or the second lens installation position is the second installation through hole, the installation process of the first lens and the second lens can be simplified, and the structures of the inner carrier and the outer carrier can be simplified. In addition, through first installation through-hole and second installation through-hole coaxial, can guarantee uniformity and concentricity of first camera lens and second lens installation when installation first camera lens and second camera lens, and then improved the shooting effect of camera module.
In a possible implementation manner of the first aspect, the inner carrier is slidably connected to the outer carrier in the optical axis direction.
Therefore, when the camera module focuses, the inner carrier provided with the first lens is driven to slide relative to the outer carrier along the optical axis direction by the focusing driving assembly.
In a possible implementation manner of the first aspect, the inner carrier and the outer carrier are slidably connected through a sliding structure, the sliding structure includes a sliding groove and a sliding protrusion matched with the sliding groove, one of the sliding groove and the sliding protrusion is disposed on the inner carrier, the other is disposed on the outer carrier, and a concave direction of the sliding groove is parallel to the optical axis direction.
Therefore, when the camera module focuses, the inner carrier provided with the first lens is driven to slide relative to the outer carrier along the optical axis direction by the focusing driving assembly, and when the camera module focuses, the anti-shake driving assembly can drive the outer carrier to drive the inner carrier to synchronously move along the vertical optical axis direction.
In a possible implementation manner of the first aspect, the outer carrier includes a body portion and a mounting portion that are connected to each other, the body portion is sleeved on an outer side of the inner carrier, a first moving gap is formed between the body portion and the housing, at least a portion of the mounting portion passes through the light passing hole and protrudes out of the housing, a second moving gap is formed between the mounting portion and a hole wall of the light passing hole, the first moving gap corresponds to the second moving gap, and the second lens is mounted on the mounting portion.
Because part of the mounting part passes through the light passing hole and stretches out of the shell, and the second lens is mounted on the mounting part, the second lens is arranged on the outer side of the shell, the body part is sleeved on the outer side of the inner carrier, and the first lens is arranged on the inner side of the shell to form an inner focusing lens structure, so that the shooting effect of the shooting module is further improved.
In addition, because the first moving gap is arranged between the body part and the shell, and the second moving gap is arranged between the mounting part and the hole wall of the light passing hole, a space can be reserved for the outer carrier to move along the direction of the vertical optical axis, so that the anti-shake function of the camera module is ensured.
In a possible implementation manner of the first aspect, the anti-shake driving assembly includes:
the fixing plate is arranged on the shell;
the movable plate is arranged on the outer carrier and is opposite to the fixed plate at intervals;
the memory alloy assembly comprises a plurality of shape memory alloy wires, one end of each shape memory alloy wire is connected with the fixed plate, the other end of each shape memory alloy wire is connected with the movable plate, and the shape memory alloy wires can deform under the electrified state to drive the movable plate to move along the direction vertical to the optical axis.
Therefore, by selecting different shape memory alloy wires to be electrified, the movable plate can move in the plane vertical to the optical axis direction, and the movable plate is arranged on the outer carrier, so that the movable plate can drive the outer carrier to move along the vertical optical axis direction, and the camera shooting module achieves the anti-shake function.
In a possible implementation manner of the first aspect, the anti-shake driving assembly includes an anti-shake magnet and an anti-shake coil that are mutually matched, one of the anti-shake magnet and the anti-shake coil is disposed on the outer carrier, and the other is disposed on the housing;
the anti-shake coil is capable of generating an ampere force that moves the outer carrier in a direction perpendicular to the optical axis with the anti-shake magnet in an energized state.
Therefore, after the anti-shake coil is electrified, a magnetic field is generated, ampere force capable of driving the outer carrier to drive the inner carrier to move along the direction of the vertical optical axis is formed with the anti-shake magnet, and when currents with different magnitudes are introduced into the anti-shake coil, the anti-shake coil and the anti-shake magnet form ampere forces with different magnitudes, so that the movement of the outer carrier can be controlled to different distances; when current in different directions is introduced to the anti-shake coil, the anti-shake coil and the anti-shake magnet form ampere force in different directions, so that the outer carrier can be driven to move in different directions.
In a second aspect, the present utility model further provides a camera module, where the camera module includes:
a drive device comprising the drive device of the first aspect;
The first lens is arranged on the first lens installation position;
the second lens is arranged on the second lens installation position.
Because the camera module includes the drive arrangement in the first aspect, therefore, the camera module can drive interior carrier along optical axis direction motion through focusing drive assembly for first camera lens moves along the direction of optical axis, thereby realize camera module's function of focusing, can drive outer carrier and interior carrier through anti-shake drive assembly again and move jointly, make first camera lens and second camera lens move along perpendicular optical axis direction jointly, thereby realize camera module's anti-shake function, avoided the motion of imaging chip in anti-shake or focusing in-process, thereby guaranteed imaging chip's equipment effect, and then guaranteed camera module's imaging quality.
In a possible implementation manner of the second aspect, the camera module further includes a circuit board disposed on the housing and an imaging chip electrically connected to the circuit board, the imaging chip is disposed in the housing, the focusing driving assembly and the anti-shake driving assembly are both electrically connected to the circuit board, and the anti-shake driving assembly is configured to drive the outer carrier and the inner carrier to move together along a direction perpendicular to the optical axis, so as to drive the first lens and the second lens to move together along a direction perpendicular to the optical axis, so that incident light falls on the imaging chip, and the focusing driving assembly is configured to drive the inner carrier to move relative to the outer carrier along the direction of the optical axis, so as to drive the first lens to move along the direction of the optical axis, so that the incident light is focused on the imaging chip.
Because the imaging chip can sense or detect whether the incident light is focused on the imaging chip, the first lens is driven by the focusing driving component to move along the optical axis direction or the first lens and the second lens are driven by the anti-shake driving component to move along the vertical optical axis direction, so that the incident light is focused on the imaging chip, and the imaging quality of the camera module is further ensured.
In a third aspect, the present utility model further provides an electronic device, where the electronic device includes the camera module set in the second aspect.
Because the electronic equipment comprises the camera module of the second aspect, and the imaging quality of the camera module is good, the shooting performance of the electronic equipment is improved.
Compared with the prior art, the application has at least the following beneficial effects:
in this application, because first camera lens is installed on first camera lens installation position, the drive assembly that focuses is used for driving the relative outer carrier of interior carrier and moves along the direction of optical axis, consequently, focus drive assembly can drive the direction motion of first camera lens along the optical axis to realize the function that the module was focused, and, because focus drive assembly can only drive the direction motion of first camera lens along the optical axis, compare in the common direction motion along the optical axis of first camera lens and second camera lens among the related art, reduced the consumption of the drive power of focusing drive assembly, reached laborsaving effect promptly. The anti-shake driving assembly is used for driving the outer carrier and the inner carrier to move together, so that the anti-shake driving assembly can drive the first lens and the second lens to move together simultaneously so as to realize the anti-shake function of the camera module. In addition, because the outside of carrier including outer carrier ring cover, the shell ring cover is in the outside of carrier outside, focus drive assembly sets up between outer carrier and interior carrier and be connected with outer carrier and interior carrier respectively, anti-shake drive assembly sets up between shell and outer carrier and be connected with shell and outer carrier respectively, consequently, compare in focusing drive assembly and lens subassembly connection, anti-shake drive assembly is connected with other parts, on the one hand, make the setting structure of focusing drive assembly and anti-shake drive assembly more compact, on the other hand, need not to reserve the space of motion for other parts, it is visible that above-mentioned structure can make the module miniaturization of making a video recording, the shooting effect of the module of making a video recording has also been guaranteed simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a driving device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a driving device provided by an embodiment of the present utility model, in which a first lens and a second lens are installed;
FIG. 3 is a schematic view of a sliding connection structure between an inner carrier and an outer carrier according to an embodiment of the present utility model;
FIG. 4 is a schematic structural diagram of an outer carrier according to an embodiment of the present utility model;
FIG. 5 is an exploded view of an anti-shake driving assembly according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of an image capturing module according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present utility model.
Reference numerals illustrate:
100-driving means; 110-an inner vector; 111-a first lens mount; 1111—a first mounting through hole; 112-a sliding groove; 120-an outer vector; 120 a-a body portion; 120 b-a mounting portion; 121-a second lens mount; 1211-a second mounting through hole; 122-sliding protrusions; 130-a housing; 131-a light passing hole; 140-a focus drive assembly; 141-focusing coils; 142-focusing a magnet; 150-an anti-shake driving assembly; 151-a fixed plate; 152-a movable plate; 153-memory alloy assembly; 1531-shape memory alloy wire;
200-a camera module; 211-a first lens; 212-a second lens; 220-imaging chip; 230-a circuit board;
a1-a first movement gap; a2-a second movement gap;
10-electronic device.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
With the development of technology, the photographing performance of the camera module is becoming more and more powerful. The existing camera module can automatically focus and automatically prevent shake during shooting, so that shooting experience of a user is improved.
In the related art, the lens assembly in the camera module is driven to automatically focus or automatically prevent shake, that is, the lens assembly can only move along the direction of the optical axis to automatically focus, or the lens assembly can only move along the direction perpendicular to the optical axis to automatically prevent shake, so, when the lens assembly is driven to automatically focus, other components are required to automatically prevent shake of the camera module, and when the lens assembly is driven to automatically prevent shake, the other components are required to automatically focus the camera module, so that a movement space is required to be reserved for movement of the other components, thereby resulting in larger size of the camera module.
In view of this, the embodiment of the utility model provides a driving device, a camera module and electronic equipment, which can ensure the shooting effect of the camera module.
The present application is described in detail below by way of specific examples:
referring to fig. 1 and 2 in combination, an embodiment of the present application provides a driving apparatus 100, where the driving apparatus 100 is applied in an image capturing module 200, and the driving apparatus 100 includes: an inner carrier 110, an outer carrier 120, and a housing 130, the inner carrier 110 having a first lens mount 111, the first lens mount 111 for mounting a first lens 211; the outer carrier 120 is sleeved outside the inner carrier 110, the outer carrier 120 is provided with a second lens mounting position 121 coaxial with the first lens mounting position 111, the second lens mounting position 121 is used for mounting a second lens 212, and a focusing driving assembly 140 is arranged between the outer carrier 120 and the inner carrier 110; the outer shell 130 is sleeved outside the outer carrier 120, an anti-shake driving assembly 150 is arranged between the outer shell 130 and the outer carrier 120, a light passing hole 131 coaxial with the optical axis is arranged on the outer shell 130, and the light passing hole 131 and the second lens mounting position 121 are coaxially arranged; the focusing driving assembly 140 is connected to the outer carrier 120 and/or the inner carrier 110, and is used for driving the inner carrier 110 to move along the optical axis direction (i.e. the direction indicated by the Y arrow in fig. 1) relative to the outer carrier 120, and the anti-shake driving assembly 150 is connected to the housing 130 and/or the outer carrier 120, and is used for driving the outer carrier 120 and the inner carrier 110 to move together.
In this embodiment, since the first lens mount 111 is coaxial with the second lens mount 121 and the first lens 211 is mounted on the first lens mount 111 in the optical axis direction and the second lens 212 is mounted on the first lens mount 111 in the optical axis direction, the consistency and concentricity of the mounting of the first lens 211 and the second lens 212 are ensured compared to the lateral mounting of the first lens 211 and the second lens 212. Because the light passing hole 131 and the second lens mounting position 121 are coaxially arranged, the light passing hole 131, the second lens mounting position 121 and the first lens mounting position 111 are coaxially arranged, so that incident light can sequentially pass through the light passing hole 131, the second lens mounting position 121 and the first lens mounting position 111, the incident effect of the incident light is ensured, and the shooting effect of the shooting module is further ensured.
In practical applications, the order of mounting the first lens 211 and the second lens 212 is not limited, that is, the first lens 211 may be mounted first and then the second lens 212 may be mounted, or the second lens 212 may be mounted first and then the first lens 211 may be mounted.
In addition, since the first lens 211 is mounted on the first lens mounting position 111, the focusing driving assembly 140 is used for driving the inner carrier 110 to move along the optical axis direction relative to the outer carrier 120, so that the focusing driving assembly 140 can drive the first lens 211 to move along the optical axis direction, thereby realizing the focusing function of the image capturing module 200, and since the focusing driving assembly 140 can only drive the first lens 211 to move along the optical axis direction, compared with the prior art in which the first lens 211 and the second lens 212 move along the optical axis direction together, the consumption of driving force of the focusing driving assembly 140 is reduced, i.e. the labor-saving effect is achieved.
Because the second lens 212 is mounted on the second lens mounting position 121, the anti-shake driving assembly 150 is used for driving the outer carrier 120 and the inner carrier 110 to move together, so that the anti-shake driving assembly 150 can drive the first lens 211 and the second lens 212 to move simultaneously, thereby realizing the anti-shake function of the camera module 200, and because the anti-shake driving assembly 150 can drive the first lens 211 and the second lens 212 to move simultaneously, the consistency of the movement of the first lens 211 and the second lens 212 in the anti-shake process is ensured, thereby ensuring the anti-shake effect of the camera module 200, and further ensuring the shooting effect of the camera module 200.
In addition, in the related art, when the focusing function and the anti-shake function are implemented, the focusing driving assembly 140 is connected to the lens assembly, the anti-shake driving assembly 150 is connected to other components, or the focusing driving assembly 140 is connected to other components, the anti-shake driving assembly 150 is connected to the lens assembly, while in this embodiment, the outer carrier 120 is sleeved outside the inner carrier 110, the outer casing 130 is sleeved outside the outer carrier 120, the focusing driving assembly 140 is disposed between the outer carrier 120 and the inner carrier 110, the focusing driving assembly 140 is used for driving the inner carrier 110 to move along the direction of the optical axis relative to the outer carrier 120, the anti-shake driving assembly 150 is disposed between the outer casing 130 and the outer carrier 120, and the anti-shake driving assembly 150 is used for driving the outer carrier 120 and the inner carrier 110 to move together, thereby, on one hand, by disposing the focusing driving assembly 140 between the outer carrier 120 and the inner carrier 110, the anti-shake driving assembly 150 is disposed between the housing 130 and the outer carrier 120, so that the arrangement structure of the focusing driving assembly 140 and the anti-shake driving assembly 150 can be more compact, on the other hand, since the focusing driving assembly 140 is used for driving the inner carrier 110 to move along the optical axis direction relative to the outer carrier 120, and the anti-shake driving assembly 150 is used for driving the outer carrier 120 and the inner carrier 110 to jointly move, the focusing driving assembly 140 can drive the first lens 211 to move along the optical axis direction, the anti-shake driving assembly 150 can simultaneously drive the first lens 211 and the second lens 212 to move, in this embodiment, the focusing function can be realized and the anti-shake function can be realized by driving the lens assemblies (i.e. the first lens 211 and the second lens 212), and no space for movement is reserved for other components, so that the structure in this embodiment can make the camera module 200 compact, and also ensures the photographing effect of the photographing module 200.
It should be noted that, the first lens 211 may be mounted on the first lens mounting position 111 along the optical axis direction, or may be mounted on the first lens mounting position 111 along a direction perpendicular to the optical axis (i.e., a direction indicated by an X arrow in fig. 1); the second lens 212 may be mounted on the second lens mounting position 121 in the optical axis direction, or may be mounted on the second lens mounting position 121 in the direction perpendicular to the optical axis; the anti-shake driving assembly 150 is used for driving the outer carrier 120 and the inner carrier 110 to move together, it should be understood that the anti-shake driving assembly 150 is used for driving the outer carrier 120 and the inner carrier 110 to move together along a direction perpendicular to the optical axis, or the anti-shake driving assembly 150 is used for driving the outer carrier 120 and the inner carrier 110 to rotate together around the optical axis to realize anti-shake.
The focusing driving unit 140 may be an SMA linear actuator or a magnet coil driving structure, and will be described in detail below by taking a magnet coil structure as an example.
In some possible embodiments, referring to fig. 2, the focus driving assembly 140 includes a focus coil 141 and a focus magnet 142, one of the focus coil 141 and the focus magnet 142 is disposed on the outer carrier 120, and the other is disposed on the inner carrier 110, and the focus coil 141 is capable of generating an ampere force with the focus magnet 142 to move the inner carrier 110 in the optical axis direction in an energized state.
Specifically, the focusing coil 141 is fixedly disposed on the outer carrier 120, the focusing magnet 142 is fixedly disposed on the inner carrier 110, or the focusing coil 141 is fixedly disposed on the inner carrier 110, the focusing magnet 142 is fixedly disposed on the outer carrier 120, and an end of the focusing coil 141 is opposite to an end of the focusing magnet 142.
Thus, the focusing coil 141 generates a magnetic field after being electrified and forms an ampere force with the focusing magnet 142, which can drive the inner carrier 110 to move along the optical axis direction relative to the outer carrier 120, and when different magnitudes of currents are applied to the focusing coil 141, the focusing coil 141 forms different ampere forces with the focusing magnet 142, so that the inner carrier 110 can be controlled to move different distances; when current in different directions is applied to the focusing coil 141, the focusing coil 141 and the focusing magnet 142 generate ampere forces in different directions, so that the inner carrier 110 can be driven to move in different directions.
The first lens mounting location 111 and the second lens mounting location 121 may have various structures, and in one possible structure, referring to fig. 1 and 2, the inner carrier 110 is provided with a first mounting through hole 1111 coaxial with the light passing hole 131, the first mounting through hole 1111 is the first lens mounting location 111, and/or the outer carrier 120 is provided with a second mounting through hole 1211 coaxial with the light passing hole 131, and the second mounting through hole 1211 is the second lens mounting location 121.
Specifically, a first mounting through hole 1111 is provided on the inner carrier 110 for mounting the first lens 211, or a second mounting through hole 1211 is provided on the outer carrier 120 for mounting the second lens 212, or a first mounting through hole 1111 is provided on the inner carrier 110 for mounting the first lens 211, and a second mounting through hole 1211 is provided on the outer carrier 120 for mounting the second lens 212.
Because the through hole has a simple structure and is easy to process, when the first lens mounting location 111 is the first mounting through hole 1111 and/or the second lens mounting location 121 is the second mounting through hole 1211, the mounting process of the first lens 211 and the second lens 212 can be simplified, and the structures of the inner carrier 110 and the outer carrier 120 can be simplified. In addition, the first mounting through hole 1111 and the second mounting through hole 1211 are coaxial, so that the consistency and concentricity of the mounting of the first lens 211 and the second lens 212 can be ensured when the first lens 211 and the second lens 212 are mounted, and the photographing effect of the photographing module 200 is further improved.
Of course, the first lens mounting location 111 and the second lens mounting location 121 may have other structures, for example, the first lens mounting location 111 and the second lens mounting location 121 may be mounting grooves, or mounting claws or the like.
As can be seen from the above description, the focus driving assembly 140 can drive the inner carrier 110 to move along the optical axis direction relative to the outer carrier 120, and accordingly, in some possible structures, referring to fig. 3, the inner carrier 110 is slidably connected to the outer carrier 120 along the optical axis direction.
Specifically, the inner carrier 110 and the outer carrier 120 are slidably connected by a sliding structure including a sliding groove 112 and a sliding protrusion 122 mated with the sliding groove 112, and a recessed direction of the sliding groove 112 is parallel to the optical axis direction, one of the sliding groove 112 and the sliding protrusion 122 being provided on the inner carrier 110, and the other being provided on the outer carrier 120. In this way, when the camera module 200 focuses, the inner carrier 110 with the first lens 211 is driven by the focusing driving component 140 to slide relative to the outer carrier 120 along the optical axis direction, and when the camera module 200 focuses, the anti-shake driving component 150 can drive the outer carrier 120 to drive the inner carrier 110 to synchronously move along the vertical optical axis direction.
Alternatively, the recess direction of the sliding groove 112 is perpendicular to the optical axis direction, and the extending direction of the sliding groove 112 is parallel to the optical axis direction, in this structure, in order to fix the outer carrier 120 with respect to the inner carrier 110 in the direction perpendicular to the optical axis, in a specific implementation structure, optionally, the width of the groove body of the sliding groove 112 is larger than the width of the opening of the sliding groove 112, and the width of the portion of the sliding protrusion 122 inserted into the sliding groove 112 is larger than the width of the opening of the sliding groove 112, so that the opening of the sliding groove 112 can have a limiting effect on the sliding protrusion 122 inserted into the sliding groove 112, thereby preventing the sliding protrusion 122 from being separated from the sliding groove 112, and enabling the outer carrier 120 to drive the inner carrier 110 to move in the direction perpendicular to the optical axis direction.
Of course, the connection relation of the inner carrier 110 and the outer carrier 120 to be relatively movable is not limited to the above-described sliding connection, and the inner carrier 110 may be elastically connected to the outer carrier 120 in the optical axis direction.
In addition, also, for the purpose of moving the outer carrier 120 with respect to the housing 130, there are various connection relations between the outer carrier 120 and the housing 130, and alternatively, referring to fig. 3, the outer carrier 120 is slidably connected or rotatably connected with the housing 130. Specifically, a bearing surface is disposed in the housing 130, and the outer carrier 120 is slidably or rotatably disposed on the bearing surface, and since the inner carrier 110 is slidably connected to the outer carrier 120 in the optical axis direction and the sliding direction of the inner carrier 110 with respect to the outer carrier 120 is parallel to the optical axis direction, the inner carrier 110 is fixed with respect to the outer carrier 120 in the direction perpendicular to the optical axis, and thus, when the anti-shake driving assembly 150 drives the outer carrier 120 to slide in the direction perpendicular to the optical axis or rotate around the optical axis direction with respect to the housing 130, the outer carrier 120 can drive the inner carrier 110 to move together.
Of course, the outer carrier 120 may be elastically coupled to the housing 130 in a direction perpendicular to the optical axis.
In some possible embodiments, referring to fig. 3 and 4, the outer carrier 120 includes a body portion 120a and a mounting portion 120b connected to each other, the body portion 120a is looped around the outer side of the inner carrier 110, a first moving gap A1 is formed between the body portion 120a and the housing 130, at least a portion of the mounting portion 120b passes through the light passing hole 131 and protrudes out of the housing 130, a second moving gap A2 is formed between the mounting portion 120b and a wall of the light passing hole 131, the first moving gap A1 corresponds to the second moving gap A2, and the second lens mounting position 121 is located on the mounting portion 120 b.
Since the part of the mounting portion 120b passes through the light passing hole 131 and extends out of the housing 130, and the second lens 212 is mounted on the mounting portion 120b, the second lens 212 is disposed on the outer side of the housing 130, and the body portion 120a is sleeved on the outer side of the inner carrier 110, so that the first lens 211 is disposed on the inner side of the housing 130 to form an inner focusing lens structure, thereby further improving the image capturing effect of the image capturing module 200.
In addition, since the body portion 120a and the housing 130 have a first moving gap A1, and the mounting portion 120b and the wall of the light passing hole 131 have a second moving gap A2, a space can be reserved for the outer carrier 120 to move along the direction perpendicular to the optical axis, so as to ensure the anti-shake function of the camera module 200.
The first moving gap A1 and the second moving gap A2 are equal to each other, and the first moving gap A1 and the second moving gap A2 are equal to each other.
The anti-shake driving assembly 150 has various structures, and in one possible structure, referring to fig. 5, the anti-shake driving assembly 150 includes a fixed plate 151, a movable plate 152 and a memory alloy assembly 153, where the fixed plate 151 is disposed on the housing 130; the movable plate 152 is disposed on the outer carrier 120, and the movable plate 152 is spaced opposite to the fixed plate 151; the memory alloy component 153 includes a plurality of shape memory alloy wires 1531, one end of each shape memory alloy wire 1531 is connected with the fixed plate 151, and the other end is connected with the movable plate 152, and the shape memory alloy wires 1531 can deform in the energized state to drive the movable plate 152 to move along the direction perpendicular to the optical axis.
Specifically, the shapes and sizes of the fixed plate 151 and the movable plate 152 are substantially the same, for example, the fixed plate 151 and the movable plate 152 are square plates, the corresponding shape memory alloy wires 1531 include eight shape memory alloy wires grouped in pairs, and two shape memory alloy wires 1531 in each group are cross-connected, each group of shape memory alloy wires 1531 is disposed at one side edge of the fixed plate 151 and the movable plate 152, that is, one end of one shape memory alloy wire 1531 in each group of shape memory alloy wires 1531 is connected with an end of one side edge of the fixed plate 151, the other end is connected with an end of one side edge of the movable plate 152 corresponding to an edge of the fixed plate 151, and the end of the fixed plate 151 connected with the shape memory alloy wires 1531 is connected with two ends of one side edge of the movable plate 152.
Thus, by selectively energizing the different shape memory alloy wires 1531, the movable plate 152 can be moved in a plane perpendicular to the optical axis direction (as shown in fig. 5, the movable plate 152 moves in a left, right, forward or backward direction), and since the movable plate 152 is disposed on the outer carrier 120, the movable plate 152 can drive the outer carrier 120 to move in the perpendicular optical axis direction, so that the camera module 200 can realize an anti-shake function.
In addition, in order to make the structure more compact, the movable plate 152 is optionally provided on the end surface of the body portion 120a where the mounting portion 120b is provided, and the fixed plate 151 is provided on the inner wall of the housing 130 where the light passing hole 131 is provided.
In another possible embodiment, the anti-shake driving assembly 150 includes an anti-shake magnet and an anti-shake coil that are mutually matched, one of the anti-shake magnet and the anti-shake coil is disposed on the outer carrier 120, and the other is disposed on the housing 130; the anti-shake coil is capable of generating an ampere force that moves the outer carrier 120 in a direction perpendicular to the optical axis with the anti-shake magnet in an energized state.
Specifically, the anti-shake magnet is disposed on the outer carrier 120, the anti-shake coil is disposed on the housing 130, or the anti-shake magnet is disposed on the housing 130, and the anti-shake coil is disposed on the outer carrier 120.
Therefore, after the anti-shake coil is electrified, a magnetic field is generated, and an ampere force capable of driving the outer carrier 120 to drive the inner carrier 110 to move along the direction of the vertical optical axis is formed by the anti-shake coil and the anti-shake magnet, and when currents with different magnitudes are introduced into the anti-shake coil, the anti-shake coil and the anti-shake magnet form ampere forces with different magnitudes, so that the outer carrier 120 can be controlled to move for different distances; when current in different directions is introduced to the anti-shake coil, the anti-shake coil and the anti-shake magnet form ampere force in different directions, so that the outer carrier 120 can be driven to move in different directions.
Referring to fig. 6, the embodiment of the present application further provides an image capturing module 200, where the image capturing module 200 includes a driving device 100 and a lens assembly, the lens assembly includes a first lens 211 and a second lens 212, the driving device 100 is the driving device 100 in the above embodiment, and the first lens 211 is disposed on the first lens mounting position 111; the second lens 212 is disposed on the second lens mount 121.
The driving device 100 in the embodiment of the present application may have the same structure as any driving device 100 in the above embodiment, and may bring about the same or similar beneficial effects, and specifically, reference may be made to the description in the above embodiment, which is not repeated herein.
Because the camera module 200 includes the driving device 100 in the above embodiment, the camera module 200 can drive the inner carrier 110 to move along the optical axis direction through the focusing driving component 140, so that the first lens 211 moves along the optical axis direction, thereby realizing the focusing function of the camera module 200, and can drive the outer carrier 120 and the inner carrier 110 to move together through the anti-shake driving component 150, so that the first lens 211 and the second lens 212 move together along the vertical optical axis direction, thereby realizing the anti-shake function of the camera module 200, in other words, the driving of the lens component through the driving device 100 can realize both the anti-shake function of the camera module 200 and the focusing function of the camera module 200, thereby avoiding the movement of the imaging chip 220 in the anti-shake or focusing process, thereby ensuring the assembly effect of the imaging chip 220, and further ensuring the imaging quality of the camera module 200.
In addition, since the driving apparatus 100 is compact, the overall size of the image pickup module 200 is miniaturized.
In addition, the optical axis of the first lens 211 and the optical axis of the second lens 212 are coaxial, and each of the first lens 211 and the second lens 212 is a lens group composed of at least one lens. The first lens 211 and the first lens mounting position 111 and the second lens 212 and the second lens mounting position 121 may be fixed by dispensing, clamping or screw connection.
In some possible embodiments, the camera module 200 further includes a circuit board 230 disposed on the housing 130 and an imaging chip 220 electrically connected to the circuit board 230, the imaging chip 220 is disposed in the housing 130, the focusing driving assembly 140 and the anti-shake driving assembly 150 are both connected to the circuit board 230, the anti-shake driving assembly 150 is used for driving the outer carrier 120 and the inner carrier 110 to move together along a direction perpendicular to the optical axis, so as to drive the first lens 211 and the second lens 212 to move together along a direction perpendicular to the optical axis, to make incident light fall on the imaging chip 220, and the focusing driving assembly 140 is used for driving the inner carrier 110 to move relative to the outer carrier 120 along the direction of the optical axis, so as to drive the first lens 211 to move along the direction of the optical axis, so as to focus the incident light on the imaging chip 220.
Because the imaging chip 220 can sense or detect whether the incident light is focused on the imaging chip 220, the focusing driving component 140 drives the first lens 211 to move along the optical axis direction or the anti-shake driving component 150 drives the first lens 211 and the second lens 212 to move along the vertical optical axis direction, so that the incident light is focused on the imaging chip 220, and the imaging quality of the camera module 200 is further ensured.
The embodiment of the application also provides an electronic device 10, where the electronic device 10 includes the camera module 200 in the above embodiment.
The camera module 200 in the embodiment of the present application may have the same structure as any of the camera modules 200 in the above embodiment, and may bring about the same or similar beneficial effects, and specifically, reference may be made to the description in the above embodiment, which is not repeated herein.
Since the electronic device 10 includes the camera module 200 in the above embodiment, and the imaging quality of the camera module 200 is better, the shooting performance of the electronic device 10 is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A driving device, which is applied to a camera module, the driving device comprising:
the inner carrier is provided with a first lens installation position, and the first lens installation position is used for installing a first lens;
the outer carrier is sleeved on the outer side of the inner carrier, the outer carrier is provided with a second lens mounting position coaxial with the first lens mounting position, the second lens mounting position is used for mounting a second lens, and a focusing driving assembly is arranged between the outer carrier and the inner carrier;
the outer shell is sleeved on the outer side of the outer carrier, an anti-shake driving assembly is arranged between the outer shell and the outer carrier, a light passing hole is formed in the outer shell, and the light passing hole and the second lens mounting position are coaxially arranged;
the focusing driving assembly is connected with the inner carrier and/or the outer carrier and used for driving the inner carrier to move along the optical axis direction relative to the outer carrier, and the anti-shake driving assembly is connected with the outer carrier and/or the shell and used for driving the outer carrier and the inner carrier to move together.
2. The drive device according to claim 1, wherein the focus drive assembly includes a focus coil and a focus magnet, one of the focus coil and the focus magnet being provided on the outer carrier, the other being provided on the inner carrier, the focus coil being capable of generating an ampere force that moves the inner carrier in the optical axis direction with the focus magnet in an energized state.
3. The driving device according to claim 1, wherein a first mounting through hole coaxial with the light passing hole is provided on the inner carrier, the first mounting through hole being the first lens mounting position, and/or a second mounting through hole coaxial with the light passing hole is provided on the outer carrier, the second mounting through hole being the second lens mounting position.
4. The drive device according to claim 1, wherein the inner carrier is slidably connected to the outer carrier in the optical axis direction.
5. The driving device according to claim 4, wherein the inner carrier and the outer carrier are slidably connected by a sliding structure, the sliding structure includes a sliding groove and a sliding protrusion mated with the sliding groove, one of the sliding groove and the sliding protrusion is provided on the inner carrier, the other is provided on the outer carrier, and a recessed direction of the sliding groove is parallel to the optical axis direction.
6. The driving device according to claim 1, wherein the outer carrier comprises a body part and a mounting part which are connected with each other, the body part is sleeved outside the inner carrier, a first moving gap is arranged between the body part and the outer shell, at least part of the mounting part penetrates through the light passing hole and extends out of the outer shell, a second moving gap is arranged between the mounting part and the hole wall of the light passing hole, the first moving gap corresponds to the second moving gap, and the second lens mounting is arranged on the mounting part.
7. The drive of any one of claims 1-6, wherein the anti-shake drive assembly comprises:
the fixing plate is arranged on the shell;
the movable plate is arranged on the outer carrier and is opposite to the fixed plate at intervals;
the memory alloy assembly comprises a plurality of shape memory alloy wires, one end of each shape memory alloy wire is connected with the fixed plate, the other end of each shape memory alloy wire is connected with the movable plate, and the shape memory alloy wires can deform under the electrified state to drive the movable plate to move along the direction vertical to the optical axis.
8. The drive device according to any one of claims 1 to 6, wherein the anti-shake drive assembly includes an anti-shake magnet and an anti-shake coil that are mutually matched, one of the anti-shake magnet and the anti-shake coil being provided on the outer carrier, the other being provided on the housing;
the anti-shake coil is capable of generating an ampere force that moves the outer carrier in a direction perpendicular to the optical axis with the anti-shake magnet in an energized state.
9. The utility model provides a module of making a video recording, its characterized in that, the module of making a video recording includes:
A drive device according to any one of claims 1 to 8;
the first lens is arranged on the first lens installation position;
the second lens is arranged on the second lens installation position.
10. An electronic device comprising the camera module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222703011.9U CN219181611U (en) | 2022-10-13 | 2022-10-13 | Driving device, camera module and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222703011.9U CN219181611U (en) | 2022-10-13 | 2022-10-13 | Driving device, camera module and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN219181611U true CN219181611U (en) | 2023-06-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117908214A (en) * | 2024-03-19 | 2024-04-19 | 宁波舜宇光电信息有限公司 | Split lens assembly and camera module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117908214A (en) * | 2024-03-19 | 2024-04-19 | 宁波舜宇光电信息有限公司 | Split lens assembly and camera module |
| CN117908214B (en) * | 2024-03-19 | 2024-05-28 | 宁波舜宇光电信息有限公司 | Split lens assembly and camera module |
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