CN113014763A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN113014763A CN113014763A CN202110190987.8A CN202110190987A CN113014763A CN 113014763 A CN113014763 A CN 113014763A CN 202110190987 A CN202110190987 A CN 202110190987A CN 113014763 A CN113014763 A CN 113014763A
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- lens
- piece
- magnetic attraction
- camera module
- magnetic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Lens Barrels (AREA)
Abstract
The embodiment of the application provides a camera module and electronic equipment. The module of making a video recording that this application embodiment provided includes that casing, camera lens, driving piece, first magnetism inhale piece and second magnetism inhale the piece, and wherein, the camera lens is located in the casing, and the camera lens has first magnetism and inhales the piece. The driving piece is arranged on at least one side of the lens, and the driving piece can drive the lens to move along the optical axis direction after being electrified. The piece is inhaled to the second magnetism and is located on casing or driving piece, and the piece can be inhaled with first magnetism to the second magnetism, and the restriction camera lens motion avoids other structures of camera lens striking and produces the abnormal sound, promotes user experience, also can ensure the safe in utilization of camera lens simultaneously, avoids because the collision and the wearing and tearing that lead to.
Description
Technical Field
The application relates to the technical field of communication equipment, in particular to a camera module and electronic equipment.
Background
With the development of science and technology, electronic equipment becomes one of the indispensable tools for people to go out, the electronic equipment can increase the connection between people and can provide daily recreation, and the lives of many people can not leave the electronic equipment.
In the design of electronic equipment, in order to satisfy the demand of making a video recording, the use of high pixel, big light ring module is more and more, sets up a plurality of modules of making a video recording in order to satisfy the high demand and also more and more popularize in electronic equipment. In particular, in order to obtain higher quality image quality, a 7P structure lens is often used in a camera module of an electronic device, that is, the lens is assembled by 7 lenses, and the overall weight of the lens in the camera module is heavy.
Specifically, when the electronic device needs to take a picture, the motor in the camera module is powered on to generate the lorentz force to push the lens to focus, and when the camera module is closed, the motor is powered off, the lorentz force disappears, and the lens does not have the external force to be bound and can freely move in the camera module. Because the whole weight of the lens is large and no external force is bound, the lens can collide with other structures (such as a rear cover lens of the electronic equipment) adjacent to the camera module to generate 'papa' abnormal sound, so that the user experience is greatly influenced, and the structure of the lens is possibly abraded.
Disclosure of Invention
The application discloses module and electronic equipment make a video recording to under the outage condition among the solution correlation technique, the camera lens can collide to other structures adjacent to the module of making a video recording and produce the abnormal sound, reduce user experience and damage camera lens self structure scheduling problem.
In order to solve the above problems, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a camera module, which includes a housing, a lens, a driving member, a first magnetic attraction member and a second magnetic attraction member, wherein the lens is disposed in the housing, and the lens has the first magnetic attraction member. The driving piece is arranged on at least one side of the lens, and the driving piece can drive the lens to move along the optical axis direction after being electrified. The second magnetic attraction piece is arranged on the shell or the driving piece and can attract the first magnetic attraction piece to limit the movement of the lens.
In a second aspect, an embodiment of the present application further provides an electronic device, including: the camera module according to the first aspect.
The module of making a video recording that this application embodiment provided includes that casing, camera lens, driving piece, first magnetism inhale piece and second magnetism inhale the piece. The casing can form the cavity that is used for holding camera lens, driving piece to promote the wholeness of the module of making a video recording, the module of making a video recording of being convenient for is installed in electronic equipment inside and can be protected inner structure. The camera lens is arranged in the shell, a first magnetic attraction piece is arranged on the camera lens, and the first magnetic attraction piece is fixedly arranged on the camera lens. Specifically, the first magnetic attraction piece is adhered to the lens through an adhesive. The driving part is arranged on at least one side of the lens, and the driving part can drive the lens to move (move forwards and backwards) after being electrified, so that the automatic focusing of the lens is realized. It should be noted that the driving member may be a motor, and the motor generates a lorentz force after being powered on, and the lorentz force can drive the lens to move so as to realize focusing. The driving piece can also be an electric deformation piece, and the size of the electric deformation piece is changed after the electric deformation piece is electrified, so that the lens is driven to move. Specifically, when the electric deformation piece is electrified with a positive voltage, the volume of the electric deformation piece can be in an increasing trend, and when the electric deformation piece is electrified with a negative voltage, the volume of the electric deformation piece can be in a decreasing trend, so that the lens can be driven to move back and forth.
Further, the module of making a video recording still includes that the second is inhaled the magnetism and is inhaled the piece, the second is inhaled the magnetism and is inhaled a magnetic attraction with the first magnetism on the camera lens, thereby restriction camera lens motion, avoid the camera lens to collide to other structures (for example, electronic equipment's back lid lens) and produce the abnormal sound of "papa", promote user experience, and also can ensure the safety of camera lens, avoid because the wearing and tearing that the collision leads to, simultaneously, only inhale the piece through setting up the first magnetism of inter attraction and the second and can ensure camera lens safety in utilization, moreover, the steam generator is simple in structure, and low cost.
Specifically, the second magnetic attraction piece can be arranged on the shell and also on the driving piece, or the second magnetic attraction piece is simultaneously positioned on the shell and the driving piece. During the movement of the lens, the lens is subjected to two acting forces, namely a driving force and a blocking force. The driving force is provided by the driving piece, and the blocking force is provided by the magnetic attraction of the first magnetic attraction piece and the second magnetic attraction piece.
In a specific embodiment, the second magnetic attraction element is disposed on the housing, and the driving force provided by the driving element is independent of the blocking force provided by the first magnetic attraction element and the second magnetic attraction element. The first magnetic part and the second magnetic part can attract each other in a non-magnetic manner under the power-on state of the driving part, and at the moment, no blocking force exists in the moving process of the lens, and the lens moves under the action of driving force to focus. When the driving piece is powered off, the first magnetic part and the second magnetic part attract magnetically to make the lens still, and the lens is stopped in place under the action of blocking force, so that the lens cannot collide with other structures. Of course, in the process of powering on the driving member, the first magnetic attraction member and the second magnetic attraction member can also keep magnetic attraction, and at this time, the driving force needs to overcome the blocking force to move the lens. Specifically, if the driving member is a voice coil motor, when the voice coil motor is powered off, the driving force (lorentz force) disappears, and at this time, the lens is still under the action of the first magnetic attraction member and the second magnetic attraction member.
In a specific embodiment, the second magnetic element is disposed on the driving element, and when the driving element provides the driving force, the second magnetic element and the first magnetic element are always in a magnetic attraction state, that is, the second magnetic element and the first magnetic element are always in a contact state. Specifically, when the driving piece slowly drives, then drive power this moment is less than the produced power that blocks of second magnetism piece and first magnetism piece of inhaling, and drive power can not influence the magnetism attraction between second magnetism piece, the first magnetism piece of inhaling promptly, and the driving piece can be inhaled through second magnetism piece, first magnetism and inhale the piece in order to drive the camera lens motion this moment. Specifically, when the driving member is an electrical deformation member, when the electrical deformation member is powered off, if the acting force generated by the dimensional change of the electrical deformation member is smaller than the blocking force, the lens moves slowly along with the driving member, the lens and the electrical deformation member move synchronously, that is, the lens and the electrical deformation member are relatively static, and finally, the lens and the electrical deformation member are both static. If the acting force generated by the volume change of the electric deformation piece is larger than the blocking force, the electric deformation piece moves, and the lens is static.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic partial structural diagram of an electronic device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of an electrical deformation element in a camera module according to an embodiment of the present disclosure;
fig. 3 is a block diagram of an electronic device according to an embodiment of the present application.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
100 of a camera module group,
110 of the housing of the portable electronic device,
a 120-degree lens, a lens,
130 a first magnetic element to be magnetically attracted,
141 an electro-deformation member, 142 a piezoelectric portion, 143 a moving portion,
150 of the second magnetic element is provided with a second magnetic element,
160 a control panel for controlling the operation of the apparatus,
170 a light-sensitive chip, and a light-sensitive chip,
180 of the bracket are arranged on the bracket body,
190 of the optical filter,
200 electronic device, 210 back cover lens.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The camera module 100 provided in the embodiment of the present application is mainly used for the electronic device 200, and the electronic device 200 includes a mobile terminal such as a mobile phone, a wearable device, a tablet computer, a laptop computer, a mobile computer, a handheld game console, a video recorder, a camcorder, a radio cassette recorder, a laser player, a compact audio system, and the like.
The camera module 100 and the electronic device 200 according to the embodiment of the present application will be further described with reference to fig. 1 to 3.
As shown in fig. 1, a camera module 100 according to a first aspect of the present disclosure includes a housing 110, a lens 120, a driving member, a first magnetic member 130, and a second magnetic member 150, where the lens 120 is disposed in the housing 110, and the lens 120 has the first magnetic member 130. The driving member is disposed on at least one side of the lens 120, and the driving member can drive the lens 120 to move along the optical axis direction after being powered on. The second magnetic element 150 is disposed on the housing 110 or the driving element, and the second magnetic element 150 can magnetically attract the first magnetic element 130 to limit the movement of the lens 120.
The camera module 100 according to the embodiment of the present disclosure includes a housing 110, a lens 120, a driving member, a first magnetic member 130, and a second magnetic member 150. The housing 110 can form a cavity for accommodating the lens 120 and the driving member, so as to improve the integrity of the camera module 100, and facilitate the camera module 100 to be installed inside the electronic device 200. The lens 120 is disposed in the housing 110, and a first magnetic member 130 is disposed on the lens 120, and the first magnetic member 130 is fixedly disposed on the lens 120. Specifically, the first magnetic attraction member 130 is adhered to the lens 120 by an adhesive. The driving member is disposed on at least one side of the lens 120, and when the driving member is powered on, the driving member can drive the lens 120 to move (move forward and backward), so that the lens 120 can automatically focus. It should be noted that the driving member may be a motor, and the motor generates a lorentz force after being powered on, and the lorentz force can drive the lens 120 to move to achieve focusing. The driving member may also be an electrical deformation member 141, and the size of the electrical deformation member 141 changes after being electrified, so as to drive the lens 120 to move. Specifically, when the electro-deformable element 141 is applied with a positive voltage, the size of the electro-deformable element 141 may tend to increase, and when the electro-deformable element 141 is applied with a negative voltage, the size of the electro-deformable element 141 may tend to decrease, so that the lens 120 can be driven to reciprocate.
Further, the camera module 100 further includes a second magnetic element 150, the second magnetic element 150 is magnetically attracted to the first magnetic element 130 on the lens 120, so as to limit the movement of the lens 120, and prevent the lens 120 from colliding with other structures (e.g., the rear cover lens 210 of the electronic device 200) to generate "papa" noise, thereby improving the user experience, and also ensuring the safety of the lens 120, avoiding the wear caused by collision, and meanwhile, only the first magnetic element 130 and the second magnetic element 150 which are mutually attracted are arranged to ensure the safety performance of the lens 120, and the camera module is simple in structure and low in cost.
Specifically, the second magnetic element 150 can be disposed on the housing 110, or can be disposed on the driving element, or the second magnetic element 150 can be disposed on both the housing 110 and the driving element. During the movement of the lens 120, the lens 120 receives two acting forces, namely a driving force and a blocking force. The driving force is provided by the driving member, and the blocking force is provided by the magnetic attraction of the first magnetic attraction member 130 and the second magnetic attraction member 150.
In one embodiment, the second magnetic attraction member 150 is disposed on the housing 110, and the driving force is provided by the driving member independently of the blocking force provided by the first magnetic attraction member 130 and the second magnetic attraction member 150. That is, in the powered state of the driving member, the first magnetic attraction member 130 and the second magnetic attraction member 150 can not attract magnetically, and at this time, there is no blocking force in the moving process of the lens 120, and the lens 120 moves under the driving force to focus. When the driving member is powered off, the first magnetic attraction member 130 and the second magnetic attraction member 150 attract each other to make the lens 120 still, and the lens 120 is stopped in place under the action of the blocking force, so that the lens cannot collide with other structures. Of course, during the process of powering on the driving member, the first magnetic attraction member 130 and the second magnetic attraction member 150 can also keep magnetic attraction, and at this time, the driving force needs to overcome the blocking force to move the lens 120. Specifically, if the driving member is a voice coil motor, when the voice coil motor is powered off, the driving force (lorentz force) disappears, and at this time, the lens 120 is still under the action of the first magnetic attraction member 130 and the second magnetic attraction member 150.
In a specific embodiment, the second magnetic element 150 is disposed on the driving element, so that when the driving element provides the driving force, the second magnetic element 150 and the first magnetic element 130 are always in a magnetic attraction state, that is, the second magnetic element 150 and the first magnetic element 130 are always in a contact state, and in order to achieve the focusing movement of the lens 120, the driving force needs to consider the blocking force to drive the lens 120 to move. Specifically, when the driving member is driven slowly, the driving force is smaller than the blocking force generated by the second magnetic attraction member 150 and the first magnetic attraction member 130, that is, the driving force does not affect the magnetic attraction between the second magnetic attraction member 150 and the first magnetic attraction member 130, and at this time, the driving member can drive the lens 120 to move through the second magnetic attraction member 150 and the first magnetic attraction member 130. Specifically, when the driving member is the electrical deformation member 141, and when the electrical deformation member 141 is powered off, if the acting force generated by the dimensional change of the electrical deformation member 141 is smaller than the blocking force, the lens 120 moves slowly along with the driving member, and the lens 120 and the electrical deformation member 141 move synchronously, that is, the two are relatively stationary, and finally, both are stationary. If the acting force generated by the size change of the electrical deformation element 141 is larger than the blocking force, the electrical deformation element 141 moves, and the lens 120 is static.
In some embodiments, the camera module 100 further includes a control board 160, the control board 160 is connected to the housing 110, and the control board 160 is located on the light-emitting side of the lens 120. The driving member includes an electrical deformation member 141, the electrical deformation member 141 is electrically connected to the control board 160, and when the driving member is powered on, at least a portion of the electrical deformation member 141 can change in size in the movement direction of the lens 120, so as to drive the lens 120 to move.
In these embodiments, the camera module 100 further includes a control board 160, the control board 160 is a rigid-flex board, and the rigid-flex board is a flexible circuit board and a rigid circuit board, which are combined together according to the related process requirements through processes such as pressing, so as to form a circuit board having the characteristics of the flexible circuit board and the rigid circuit board. The rigid-flex board can save the internal space of the camera module 100. The control board 160 can perform an electrical connection function, thereby achieving an electrical connection of the driving member. It should be noted that the control board 160 is located at the light-emitting side of the lens 120, that is, the control board 160 is located at the back side of the lens 120, and light can enter the lens 120 from the light-entering side of the lens 120 and exit through the light-emitting side. The control board 160 is disposed on the light-emitting side of the lens 120, so that the control board 160 can prevent the incident light from being blocked by interference. Further, as shown in fig. 2, the driving member includes an electrical deformation member 141, and the electrical deformation member 141 is electrically connected to the control board 160, so that the electrical deformation member 141 is powered on or powered off. When the power is turned on, the size of at least a portion of the electrical deformation changes, so that the lens 120 can be moved to focus. Specifically, the electro-deformable member 141 includes any one or a combination of piezoelectric ceramics, an electro-responsive material of graphene heterogeneous membrane, and an electro-active polymer EAP.
In a specific application, the principle of electrical deformation of piezoelectric ceramics is as follows: the piezoelectric ceramic has the property of spontaneous polarization, and the spontaneous polarization can be converted under the action of an external electric field. When an external electric field is applied to a dielectric having piezoelectricity, deformation occurs. Specifically, when the piezoelectric ceramic is applied with the same external electric field as the spontaneous polarization, the polarization strength is enhanced, and the increase in polarization strength causes the piezoelectric ceramic to elongate in the polarization direction. On the contrary, if a reverse electric field is applied, the piezoelectric ceramic is shortened in the polarization direction, and the phenomenon of converting the electric effect into the mechanical effect is the reverse piezoelectric effect of the piezoelectric ceramic.
In some embodiments, as shown in fig. 2, the electric deformation member 141 includes a piezoelectric portion 142 and a moving portion 143, and the piezoelectric portion 142 is electrically connected to the control board 160. The moving part 143 is disposed on the piezoelectric part 142 and can move synchronously with the piezoelectric part 142, and the second magnetic member 150 is disposed on the moving part 143.
In these embodiments, the electric deformation member 141 includes a piezoelectric portion 142 and a moving portion 143, the piezoelectric portion 142 is electrically connected to the control board 160, and the piezoelectric portion 142 can be changed in size in an energized state. The moving portion 143 is provided on the piezoelectric portion 142. The piezoelectric portion 142 can move the moving portion 143 together. The deformable member 141 is formed by combining the piezoelectric portion 142 and the moving portion 143, so that the cost can be controlled, and the control of the piezoelectric portion 142 can be more precise. The second magnetic member 150 is disposed on the moving portion 143. It should be noted that the piezoelectric portion 142 has a positive electrode and a negative electrode, and both the positive electrode and the negative electrode of the piezoelectric portion 142 are electrically connected to the control board 160. When the two poles of the piezoelectric portion 142 are energized, the piezoelectric portion 142 can be vibrated in high frequency (generally above 20 KHz) back and forth in a fixed direction, and when the piezoelectric portion 142 is slowly energized to a maximum value, the piezoelectric portion 142 can be extended, and the moving portion 143 is driven to move. By rapidly reducing the amount of energization of the piezoelectric portion 142 or reversing the energization of the piezoelectric portion 142, the piezoelectric portion 142 can be rapidly retracted, and the lens 120 can be held in place by inertia. Since the piezoelectric portion 142 does not move more than 1 μm each time, the above process is repeated to achieve the purpose of pushing the lens 120 to move, that is, the lens 120 can be driven to move further during the process of extending the piezoelectric portion 142 again.
Specifically, when the driving element is powered on, the piezoelectric portion 142 is slowly powered on, and at this time, the piezoelectric portion 142 is in a state of slow extension, and at this time, the moving portion 143 connected to the piezoelectric portion 142 rises along with the slow rise of the piezoelectric portion 142, and since the driving force generated by the piezoelectric portion 142 is smaller than the magnetic attraction force and the friction force between the second magnetic attraction element 150 and the first magnetic attraction element 130, at this time, the piezoelectric portion 142 can drive the lens 120 to rise through the moving portion 143, the second magnetic attraction element 150, and the first magnetic attraction element 130.
When the piezoelectric portion 142 is powered on to the maximum value, the power is turned off instantly at this time, the piezoelectric portion 142 contracts rapidly, and the piezoelectric portion 142 drives the moving portion 143 to descend together with the power, however, the contraction force generated by the piezoelectric portion 142 is far greater than the magnetic attraction force and the friction force between the second magnetic attraction piece 150 and the first magnetic attraction piece 130 when the power is turned off instantly, at this time, the piezoelectric portion 142 drives the moving portion 143 and the second magnetic attraction piece 150 to descend together, and under the inertia effect, the lens 120 and the first magnetic attraction piece 130 are stationary at the original position.
It should be noted that, when the piezoelectric portion 142 is applied with a positive voltage, the piezoelectric portion 142 is in a slowly extending state, and the lens 120 can be driven to ascend. If the piezoelectric portion 142 is applied with a negative voltage, the piezoelectric portion 142 can be in a slowly contracting state, so as to drive the lens 120 to descend.
Specifically, the energization state of the piezoelectric portion 142 can be reasonably controlled, so that the lens 120 can move forward and backward, and the focusing requirement of the lens 120 can be met.
Further, when the driving member is powered off, since the second magnetic attraction member 150 is disposed on the moving portion 143, the second magnetic attraction member 150 and the first magnetic attraction member 130 on the lens 120 are attracted together by magnetic force, the position of the lens 120 is fixed after the power failure, and the lens 120 does not swing freely, so as to solve the problem of collision between the lens 120 and other structures after the power failure.
In a specific application, the second magnetic attraction element 150 may be disposed on an outer wall of the moving portion 143, that is, the magnetic attraction force between the second magnetic attraction element 150 and the first magnetic attraction element 130 is stronger, so as to better drive the lens 120 to move.
In some embodiments, the camera module 100 further includes a limiting opening, the limiting opening is disposed on the housing 110, and the free end of the moving portion 143 extends into the limiting opening.
In these embodiments, the camera module 100 further includes a limiting opening, the limiting opening is disposed on the housing 110, and the free end of the moving portion 143 extends into the limiting opening. When the limiting part reciprocates under the driving of the piezoelectric part 142, the limiting opening can limit the moving part 143 well, so that the moving part 143 reciprocates in a stroke track, the moving part 143 is prevented from swinging and separating from a normal track, and the moving part 143 can drive the lens 120 to move stably through the second magnetic attraction piece 150 and the first magnetic attraction piece 130, thereby realizing a good focusing function.
In some embodiments, the second magnetic element 150 is disposed inside the moving portion 143.
In these embodiments, the second magnetic element 150 is disposed inside the moving portion 143, that is, the second magnetic element 150 does not directly contact with the first magnetic element 130, but the second magnetic element 150 and the first magnetic element 130 are always in a magnetic attraction state, so as to drive the lens 120 to move. If the second magnetic element 150 is disposed inside the moving portion 143, the second magnetic element 150 can be prevented from directly rubbing against the lens 120 or the first magnetic element 130, and the service life of the second magnetic element 150 can be further prolonged on the basis of ensuring the magnetic attraction.
In some embodiments, the moving portion 143 is a wear part.
In these embodiments, the moving portion 143 is made of an abrasion-resistant material, and if the second magnetic member 150 is embedded in the moving portion 143, the outer wall surface of the moving portion 143 will rub against the first magnetic member 130 or the lens 120, so that the moving portion 143 is an abrasion-resistant member, and the service life of the moving portion 143 can be prolonged.
In a particular application, the wear resistant member is a carbon rod. The carbon rod is a non-metal product, is made up by adding proper adhesive to carbon and graphite, extruding and forming, baking at 2200 deg.C and making them into rotary section, then plating a layer of copper.
In some embodiments, the length of the second magnetic member 150 is equal to or greater than the length of the first magnetic member 130 in the moving direction of the lens 120.
In these embodiments, in the moving direction of the lens 120, the length of the second magnetic attraction member 150 is greater than or equal to the length of the first magnetic attraction member 130, and due to the deformation characteristic of the piezoelectric portion 142, the piezoelectric portion 142 retracts a small distance when extending a large distance. In the process of extending and retracting the piezoelectric portion 142, in order to ensure that the first magnetic attraction piece 130 and the second magnetic attraction piece 150 are always in the magnetic attraction state, the length of the second magnetic attraction piece 150 can be greater than or equal to the length of the first magnetic attraction piece 130, and therefore the situation that the first magnetic attraction piece 130 and the second magnetic attraction piece 150 are separated from each other and cannot be magnetically attracted to each other due to the fact that the piezoelectric portion 142 drives the second magnetic attraction piece 150 to extend and retract through the moving portion 143 can be avoided.
In some embodiments, the first magnetic element 130 is disposed on an outer wall of the lens 120, or the first magnetic element 130 is disposed inside the lens 120.
In these embodiments, the first magnetic attraction element 130 is disposed on the outer wall of the lens 120, that is, the magnetic attraction force between the first magnetic attraction element 130 and the second magnetic attraction element 150 is stronger, so as to better drive the lens 120 to move. Or the first magnetic element 130 is disposed inside the lens 120, so as to prevent the first magnetic element 130 from directly rubbing against the moving portion 143 or the second magnetic element 150, and further prolong the service life of the first magnetic element 130 while ensuring the magnetic attraction.
In some embodiments, the camera module 100 further includes a mounting portion disposed on an outer wall of the lens 120, and the mounting portion is configured to receive a portion of the first magnetic element 130.
In these embodiments, the camera module 100 further includes a mounting portion disposed on an outer wall of the lens 120, and the mounting portion is configured to receive a portion of the first magnetic element 130. The assembly portion can reduce the positioning and installation difficulty of the first magnetic attraction piece 130, improve the positioning accuracy, prevent the assembly deviation and the possible magnetic attraction between the first magnetic attraction piece and the second magnetic attraction piece 150, and further prevent the lens 120 from being driven to move to realize focusing. Specifically, the fitting portion is a fitting groove.
In a specific application, a portion of the first magnetic member 130 is located in the assembling portion, and another portion of the first magnetic member 130 protrudes from the outer surface of the lens 120, so that the first magnetic member 130 and the second magnetic member 150 are better matched.
Further, the camera module 100 further includes a photosensitive chip 170, a bracket 180, and an optical filter 190, the photosensitive chip 170 is disposed on the control board 160, and the photosensitive chip 170 is located on a side of the control board 160 facing the lens 120. The bracket 180 is provided on the control board 160. The filter 190 is disposed on the support 180, and the filter 190 is located between the lens 120 and the light sensing chip 170.
In these embodiments, the camera module 100 further includes a photosensitive chip 170, a bracket 180, and an optical filter 190, the photosensitive chip 170 is disposed on the control board 160, and the photosensitive chip 170 is used for receiving light and converting optical signals into electrical signals, so as to perform an imaging function. The lens 120 is driven to move by the driving member, so that the relative position between the lens 120 and the photosensitive chip 170 can be adjusted. The optical filter 190 can increase the visible light intake, reduce other non-visible light, and improve the quality of the photographed image. The filter 190 is mounted on the control board 160 through the bracket 180, and since the imaging structure of the camera module 100 is well known to those skilled in the art, it will not be described herein.
In a second aspect, an embodiment of the present application further provides an electronic device 200, as shown in fig. 3, including: the camera module 100 according to the first aspect is provided.
In this embodiment, the electronic device 200 further includes a back cover lens 210, the back cover lens 210 is disposed on the light incident side of the lens 120, and the back cover lens 210 is capable of allowing light to enter the lens 120.
It should be noted that in the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a module of making a video recording which characterized in that includes:
a housing;
the lens is arranged in the shell and provided with a first magnetic attraction piece;
the driving piece is arranged on at least one side of the lens and can drive the lens to move along the optical axis direction after being electrified;
the second magnetic attraction piece is arranged on the shell or the driving piece and can attract the first magnetic attraction piece to limit the movement of the lens.
2. The camera module of claim 1,
the camera module further comprises:
the control panel is connected with the shell and is positioned on the light emitting side of the lens;
the driving member includes:
the electric deformation piece is electrically connected with the control panel, and under the condition of electrification, the size of at least one part of the electric deformation piece can be changed in the moving direction of the lens so as to drive the lens to move.
3. The camera module of claim 2, wherein the electro-deformable member comprises:
a piezoelectric part electrically connected to the control board;
the moving part is arranged on the piezoelectric part and can move synchronously with the piezoelectric part, and the second magnetic attraction piece is arranged on the moving part.
4. The camera module of claim 3, further comprising:
the limiting port is arranged on the shell, and the free end of the moving part extends into the limiting port.
5. The camera module of claim 3,
the second magnetic part is arranged in the moving part.
6. The camera module of claim 5,
the moving part is a wear-resistant part.
7. The camera module of any of claims 1-6,
in the moving direction of the lens, the length of the second magnetic piece is greater than or equal to that of the first magnetic piece.
8. The camera module of any of claims 1-6,
the first magnetic attraction piece is arranged on the outer wall of the lens, or
The first magnetic attraction piece is arranged inside the lens.
9. The camera module of any of claims 1-6, further comprising:
the assembly part is arranged on the outer wall of the lens and used for containing one part of the first magnetic piece.
10. An electronic apparatus, characterized by comprising the camera module of any one of claims 1 to 9.
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CN113411484A (en) * | 2021-07-20 | 2021-09-17 | 维沃移动通信有限公司 | Camera module and electronic equipment |
CN114640775A (en) * | 2022-03-23 | 2022-06-17 | Oppo广东移动通信有限公司 | Camera module and electronic device |
CN114640767A (en) * | 2022-03-14 | 2022-06-17 | Oppo广东移动通信有限公司 | Camera module and electronic device |
CN115297236A (en) * | 2022-07-28 | 2022-11-04 | 维沃移动通信有限公司 | Camera, camera driving method, device and equipment |
WO2023040805A1 (en) * | 2021-09-16 | 2023-03-23 | 维沃移动通信有限公司 | Camera assembly and electronic device |
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WO2023198109A1 (en) * | 2022-04-15 | 2023-10-19 | 华为技术有限公司 | Camera module and electronic device |
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CN116074615B (en) * | 2023-03-07 | 2023-09-08 | 荣耀终端有限公司 | Camera control method and device and terminal equipment |
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