CN111182187A - Camera module lifting device and mobile terminal - Google Patents
Camera module lifting device and mobile terminal Download PDFInfo
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- CN111182187A CN111182187A CN202010023319.1A CN202010023319A CN111182187A CN 111182187 A CN111182187 A CN 111182187A CN 202010023319 A CN202010023319 A CN 202010023319A CN 111182187 A CN111182187 A CN 111182187A
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- camera module
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- mounting block
- driving unit
- mobile terminal
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- 230000003028 elevating effect Effects 0.000 claims abstract description 7
- 238000013519 translation Methods 0.000 claims abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 11
- 230000001133 acceleration Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/56—Accessories
- G03B17/561—Support related camera accessories
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
- G06F1/1686—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being an integrated camera
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Studio Devices (AREA)
Abstract
The application provides a camera module elevating gear, including module, the drive unit of making a video recording, drive unit and the control unit, the drive unit orders about the module reciprocal telescopic movement of making a video recording through the drive unit, and the control unit can be according to the power of the mobile position control drive unit of the module of making a video recording for adjust the translation rate of the module of making a video recording. The control unit controls the driving unit in a frequency conversion manner, controls the moving speed of the camera module, ensures that the camera module does not collide the mobile terminal violently, and is beneficial to prolonging the service life. The invention also relates to a mobile terminal.
Description
Technical Field
The application relates to the technical field of communication, concretely relates to camera module elevating gear and mobile terminal.
Background
Along with social economy's rapid development, electronic equipment update speed is increasingly fast, people are increasingly high to electronic equipment's demand, the demand of shooing is exactly one of them, electronic equipment generally contains the preceding module of making a video recording and the module of making a video recording after with, the module of making a video recording generally designs in the inside of equipment, in order to realize the function of the preceding module of making a video recording, need carry out the trompil on electronic equipment's screen, the trompil leads to the regional unable demonstration of display screen trompil, the whole display effect of display screen is poor, influence user's experience, therefore how to improve the whole display effect of screen is an important problem.
The conventional design method on the market is to hide the camera assembly in the shell. Specifically, current subassembly of making a video recording is including making a video recording module, installing support, motor, reduction gear, screwed pipe and threaded rod, and the motor is fixed in electronic equipment's casing, and the motor is connected with the inside circuit board of electronic equipment, and retarder connection is on the motor, and the reduction gear links to each other with the threaded rod, and the screwed pipe cover is on the threaded rod, and the installing support links to each other with the screwed pipe.
When the front camera shooting is used, the motor is started, the motor drives the speed reducer to reduce the speed, the power output by the speed reducer drives the threaded rod to rotate, the threaded rod rotates to drive the threaded pipe to ascend, the threaded pipe drives the mounting support to ascend, so that the camera shooting module group ascends along with the mounting support, and can extend out of the shell to shoot;
when stopping to shoot, the motor reversal drives corresponding reduction gear and threaded rod reversal, and the module of making a video recording descends along with the installing support together, and the module of making a video recording is hidden in the casing.
However, the unable motor speed change of current module of making a video recording orders about the module of making a video recording and removes, though the reduction gear can play certain deceleration, the rotational speed of reduction gear output is invariable, leads to the module of making a video recording to begin to remove with will stop when removing speed great, make a video recording the module and take place fierce collision with the casing of display screen easily, reduced the life and the user experience of the subassembly of making a video recording.
Moreover, a large amount of heat can be dissipated in the working process of the motor, and the motor is close to the easily-heating device of the display screen, so that the display screen is locally overheated, and the user experience is reduced.
Disclosure of Invention
An object of this application is to provide a camera module elevating gear, the control unit frequency conversion control drive unit, and then control the module moving speed of making a video recording, guarantee that the module of making a video recording can not produce fiercely collision to mobile terminal when removing, be favorable to improving the life and the user experience of the module of making a video recording.
For solving above-mentioned technical problem, the application provides a camera module elevating gear, including module, the drive unit of making a video recording, drive unit and the control unit, the drive unit orders about the reciprocal concertina movement of module of making a video recording through the drive unit, and the control unit can be according to the power of the mobile position control drive unit of the module of making a video recording for adjust the translation rate of the module of making a video recording.
In an embodiment of the present invention, the driving unit is a variable frequency driver, a magnetic member is disposed on the camera module, the camera module lifting device further includes a position sensor, the position sensor is disposed on one side of the camera module, and the position sensor detects a moving position of the camera module through a change of a magnetic field strength.
In an embodiment of the present invention, the camera module has an extended state and a retracted state, the driving unit may drive the camera module to switch between the extended state and the retracted state, when the camera module is in the extended state and the camera module is moved by being retracted by an external force, the control unit determines the magnitude of the detected magnetic field strength and the preset magnetic field strength, and when the detected magnetic field strength is greater than or equal to the preset magnetic field strength, the control unit controls the driving unit to drive the camera module to retract to the retracted state.
In an embodiment of the invention, a process of driving the camera module to move by the driving unit includes an initial moving stage, an intermediate moving stage and a stopping moving stage, a moving speed of the camera module in the intermediate moving stage is greater than a moving speed of the initial moving stage, and a moving speed of the camera module in the intermediate moving stage is greater than a moving speed of the stopping moving stage.
In an embodiment of the present invention, the driving unit includes a driving element, a screw rod and a speed reducer, the driving element includes a connecting block and a sliding table, the connecting block is fixed to one side of the sliding table, a threaded hole is formed in the connecting block, the screw rod passes through the threaded hole, an end of the screw rod is connected to the speed reducer, the speed reducer is connected to a driving end of the driving unit, a connecting arm is arranged on one side of the camera module, and the connecting arm is connected to the sliding table.
In an embodiment of the present invention, the camera module lifting device further includes a lifting support and a spring, the driving unit is fixed on the lifting support, an end portion of the lead screw, away from the speed reducer, is rotatably connected to the lifting support, the lifting support is provided with a guide rod, the guide rod is parallel to and opposite to the lead screw, the sliding table is movably disposed on the guide rod, an accommodating cavity is disposed in the sliding table, one end of the connecting arm is disposed in the accommodating cavity, the spring is sleeved on the guide rod, the spring is located in the accommodating cavity, one end of the spring abuts against a cavity wall of the accommodating cavity, and the other end of the spring abuts against the connecting arm.
In an embodiment of the present invention, the lifting bracket includes a first mounting block and a second mounting block, the first mounting block and the second mounting block are disposed opposite to each other, the first mounting block is disposed close to the camera module, the second mounting block is disposed far from the camera module, the first mounting block is provided with a mounting hole, the variable frequency driver and the speed reducer are disposed in the mounting hole, and one end of the screw rod, which is far from the speed reducer, is rotatably connected to the second mounting block.
In an embodiment of the present invention, the lifting bracket further includes a third mounting block and a fourth mounting block, the third mounting block and the fourth mounting block are disposed opposite to each other, the third mounting block is fixed to one side of the first mounting block, the fourth mounting block is fixed to one side of the second mounting block, and the guide rod is connected between the third mounting block and the fourth mounting block.
In an embodiment of the present invention, the camera module lifting device further includes a mounting frame, the camera module is movably disposed on the mounting frame, a sliding plate is disposed at a bottom of the camera module, a sliding rail is disposed on a bottom surface of the sliding plate, the bottom surface of the sliding plate is close to the mounting frame, and the camera module and the mounting frame are movably disposed on the mounting frame through cooperation between the sliding rail and the sliding groove.
In an embodiment of the present invention, the slide rail is disposed in a fixing hole, and the magnetic member is disposed in the fixing hole.
In an embodiment of the present invention, the camera module lifting device further includes a sealing member, the sealing member is fixed on the mounting frame, the sealing member is provided with a guide hole, and the camera module passes through the guide hole.
The invention also relates to a mobile terminal, which comprises a camera module lifting device and a shell, wherein the camera module lifting device comprises a camera module, a driving unit, a transmission unit and a control unit, the driving unit drives the camera module to reciprocate and stretch through the transmission unit, the control unit can control the power of the driving unit according to the moving position of the camera module so as to adjust the moving speed of the camera module, the shell comprises a front shell and a rear shell, a through hole is arranged on the frame of the shell, the camera module is arranged corresponding to the through hole, the camera shooting module is movably arranged on the front shell, the rear shell is provided with a mounting seat, the bottom surfaces of the driving unit and the transmission unit are arranged on the mounting seat, and the front surfaces of the driving unit and the transmission unit face towards the front shell.
In an embodiment of the present invention, the driving unit is a variable frequency driver, a magnetic member is disposed on the camera module, the camera module lifting device further includes a position sensor, the position sensor is disposed on one side of the camera module, and the position sensor detects a moving position of the camera module through a change of a magnetic field strength.
In an embodiment of the present invention, the camera module has an extended state and a retracted state, the driving unit may drive the camera module to switch between the extended state and the retracted state, when the camera module is in the extended state and the camera module is moved by being retracted by an external force, the control unit determines the magnitude of the detected magnetic field strength and the preset magnetic field strength, and when the detected magnetic field strength is greater than or equal to the preset magnetic field strength, the control unit controls the driving unit to drive the camera module to retract to the retracted state.
In an embodiment of the invention, a process of driving the camera module to move by the driving unit includes an initial moving stage, an intermediate moving stage and a stopping moving stage, a moving speed of the camera module in the intermediate moving stage is greater than a moving speed of the initial moving stage, and a moving speed of the camera module in the intermediate moving stage is greater than a moving speed of the stopping moving stage.
In an embodiment of the present invention, a through hole is formed in a side frame of the housing, the camera module is disposed corresponding to the through hole, the camera module is movably disposed on the front housing, a mounting seat is disposed on the rear housing, and bottom surfaces of the driving unit and the transmission unit are disposed on the mounting seat.
In an embodiment of the present invention, the driving unit is disposed close to the through hole, and the driving unit is far away from the control main board of the mobile terminal.
In the embodiment of the invention, when the camera module extends out of the shell to take a picture and the mobile terminal receives a shutdown instruction or the electric quantity of the mobile terminal is low and the mobile terminal automatically shuts down, the controller controls the variable frequency driver to drive the camera module to retract into the shell, and then the mobile terminal executes the shutdown instruction.
According to the camera module lifting device, the control unit controls the driving unit in a frequency conversion manner, so that the moving speed of the camera module is controlled, the camera module is prevented from violently colliding with a mobile terminal when moving, and the service life of the camera module and the user experience are improved.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical means of the present application more clearly understood, the present application may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present application more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a camera module of a mobile terminal according to the present invention in a contracted state.
Fig. 2 is a schematic structural diagram of the mobile terminal according to the present invention in an extended state of the camera module.
Fig. 3 is a partially disassembled schematic view of the camera module of the mobile terminal in a contracted state.
Fig. 4 is a partially disassembled schematic diagram of the extended state of the camera module of the mobile terminal of the present invention.
Fig. 5 is a schematic structural view of a camera module in a contracted state of the camera module lifting device of the present invention.
Fig. 6 is a schematic structural view of the camera module lifting device according to the present invention in an extended state.
Fig. 7 is a rear view of the camera module lifting device of the present invention.
Fig. 8 is a schematic front view of a partially disassembled structure of the camera module lifting device of the present invention.
Detailed Description
The embodiment of the invention provides a camera module lifting device and a mobile terminal with the same.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to facilitate understanding of those skilled in the art, the present invention provides a specific implementation process of the technical solution provided by the present invention through the following embodiments.
Fig. 1 is a schematic structural diagram of a camera module of a mobile terminal according to the present invention in a contracted state, fig. 2 is a schematic structural diagram of a camera module of a mobile terminal according to the present invention in an extended state, fig. 3 is a schematic partial disassembly diagram of a camera module of a mobile terminal according to the present invention in a contracted state, fig. 4 is a schematic partial disassembly diagram of a camera module of a mobile terminal according to the present invention in an extended state, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the mobile terminal includes a camera module lifting device 10, a housing 20 and a display screen 30, the display screen 30 is disposed on the housing 20, a housing cavity 201 is disposed in the housing 20, a through hole 202 is disposed on a frame 21 of the housing 20, the through hole 202 is communicated with the housing cavity 201, and the camera module lifting device. The accommodating cavity 201 and the through hole 202 are disposed correspondingly, and the positions of the accommodating cavity 201 and the through hole 202 can be freely selected according to actual requirements, for example, the through hole 202 is disposed at any position of the top, the bottom, and the side of the frame 21. In the present embodiment, the mobile terminal includes, but is not limited to, a mobile terminal such as a mobile phone, a tablet computer, a personal digital assistant, a sales terminal, a vehicle-mounted computer, a notebook computer, a palm top computer, a camera, a navigation device, a wearable device, a smart band, a pedometer, and the like.
Further, fig. 5 is a schematic structural diagram of a camera module shrinking state of the camera module lifting device of the present invention, fig. 6 is a schematic structural diagram of a camera module extending state of the camera module lifting device of the present invention, fig. 7 is a schematic structural diagram of a camera module lifting device of the present invention viewed from the rear, fig. 8 is a schematic structural diagram of a camera module lifting device of the present invention viewed from the front, partially disassembled, fig. 1 to fig. 8, the camera module lifting device 10 includes a camera module 11, a transmission unit 13, a driving unit 14 and a control unit 16, the driving unit 14 drives the camera module 11 to reciprocate and extend through the transmission unit 13, and the control unit 16 can control the power of the driving unit 14 according to the moving position of the camera module 11 to adjust the moving speed of the camera module 11. In this embodiment, the control unit 16 frequency conversion control drive unit 14, and then control the module 11 moving speed of making a video recording, guarantee that the module 11 of making a video recording can not produce fierce collision to mobile terminal when removing, be favorable to improving the life and the user experience of the module 11 of making a video recording.
Further, the driving unit 14 is a variable frequency driver, the camera module 11 is provided with a magnetic member 111, the camera module lifting device 10 further includes a position sensor 15, the position sensor 15 is disposed on one side of the camera module 11, and the position sensor 15 detects the moving position of the camera module 11 through the change of the magnetic field strength.
Further, the housing 20 includes a front shell 22 and a rear shell (not shown), the camera module 11 is disposed corresponding to the through hole 202, the camera module 11 is movably disposed on the front shell 22, the rear shell is provided with a mounting seat 231, bottom surfaces of the driving unit 14 and the transmission unit 13 are disposed on the mounting seat 231, and front surfaces of the driving unit 14 and the transmission unit 13 face the front shell 22.
Further, the camera module lifting device 10 further includes a mounting frame 12, the mounting frame 12 is fixed on the front shell 22 of the housing 20, the mounting frame 12 corresponds to the through hole 202, and the camera module 11 is movably disposed on the mounting frame 12.
Further, the position sensor 15 is a Hall element (Hall), but not limited thereto.
It should be noted that the control unit 16 of the present invention is composed of a circuit board and a control circuit disposed on the circuit board, the control unit 16 may be a separately disposed device, or the control unit 16 is a central processing unit of the mobile terminal, that is, the central processing unit of the mobile terminal can control the start, stop, and driving speed of the driving unit 14 according to the instruction and the magnetic field signal detected by the position sensor 15.
Further, in order to avoid the influence of the earth magnetic field (the interference of the earth magnetic field is within 200 uT) and the external environment on the detection precision of the position sensor 15, the detection precision of the position sensor 15 is set, for example, when the moving distance of the camera module 11 is greater than or equal to 0.5mm and the change of the magnetic field strength is greater than or equal to 500uT, the position sensor 15 can detect the moving distance of the camera module 11; when the distance that the camera module 11 moved is less than 0.5mm, and the magnetic field intensity change is less than 500uT, the position sensor 15 cannot detect the moving distance of the camera module 11.
Further, the process of driving the camera module 11 by the driving unit 14 includes an initial moving stage, an intermediate moving stage and a stopping moving stage, the moving speed of the camera module 11 in the intermediate moving stage is greater than that in the initial moving stage, and the moving speed of the camera module 11 in the intermediate moving stage is greater than that in the stopping moving stage. In this embodiment, the control unit 16 controls the driving unit 14 in a frequency conversion manner, so that the moving speed of the camera module 11 in the initial moving stage and the stopping moving stage is slow, and the moving speed in the middle moving stage is fast, thereby ensuring that the camera module 11 does not collide with the mobile terminal violently when moving, and being beneficial to improving the service life of the camera module 11 and user experience. It should be noted that the initial moving stage is a stage when the driving unit 14 drives the camera module 11 to start moving; the stop moving stage is a stage of driving the camera module 11 to move when the driving unit 14 is close to stop.
Further, the camera module 11 has an extended state and a retracted state, as shown in fig. 5 and fig. 6, the driving unit 14 may drive the camera module 11 to switch between the extended state and the retracted state, when the camera module 11 is in the extended state, and the camera module 11 is moved by external force, the control unit 16 determines the magnitude of the detected magnetic field strength and the preset magnetic field strength, and when the detected magnetic field strength is greater than or equal to the preset magnetic field strength, the control unit 16 controls the driving unit 14 to drive the camera module 11 to retract to the retracted state. In this embodiment, the camera module lifting device 10 uses the position sensor 15 to detect the change of the magnetic field, and uses the control unit 16 to control the driving unit 14 to actively drive the camera module 11 to contract, so as to effectively reduce the impact of the ground on the camera module 11 and prevent the camera module 11 from being damaged.
Further, referring to fig. 5 to 8, the transmission unit 13 includes a driving element 131, a screw rod 134 and a speed reducer 135, the driving element 131 includes a connecting block 132 and a sliding table 133, the connecting block 132 is fixed to one side of the sliding table 133, a threaded hole 101 is formed in the connecting block 132, the screw rod 134 is disposed through the threaded hole 101, an end portion of the screw rod 134 is connected to the speed reducer 135, the speed reducer 135 is connected to a driving end of the driving unit 14, a connecting arm 112 is disposed on one side of the camera module 11, and the connecting arm 112 is connected to. In the embodiment, the driving unit 14 outputs power to the speed reducer 135, the speed reducer 135 reduces the rotation speed and outputs torque to the lead screw 134, the lead screw 134 rotates to enable the driving member 131 to move along the length direction of the lead screw 134, and the driving member 131 drives the connecting arm 112 to drive the camera module 11 to move in a telescopic manner.
Further, the camera module lifting device 10 further includes a lifting support 17 and a spring 18, the lifting support 17 is fixed on the housing 20, the driving unit 14 is fixed on the lifting support 17, the end portion of the screw 134 far away from the speed reducer 135 is rotatably connected to the lifting support 17, the lifting support 17 is provided with a guide rod 176, the guide rod 176 is parallel to and opposite to the screw 134, the sliding table 133 is movably arranged on the guide rod 176, the accommodating cavity 102 is arranged in the sliding table 133, one end of the connecting arm 112 is arranged in the accommodating cavity 102, the spring 18 is sleeved on the guide rod 176, the spring 18 is located in the accommodating cavity 102, one end of the spring 18 abuts against the cavity wall of the accommodating cavity 102, and the other end of the spring 18 abuts against the connecting arm 112. In the present embodiment, when the driving unit 14 drives the driving member 131 to move through the screw 134, the sliding table 133 and the spring 18 move synchronously, and at this time, the spring 18 pushes the connecting arm 112 and the camera module 11 to move; when a user takes a picture, the camera module 11 extends out of the shell 20, the mobile terminal falls off at the moment, impact is formed on the camera module 11, the camera module 11 is extruded by the ground and contracts towards the inside of the shell 20 in the process of collision between the camera module 11 and the ground, the connecting arm 112 compresses the spring 18, the spring 18 can absorb the impact force, the camera module 11 is prevented from being directly stressed, and the camera module 11 can be effectively protected; when the external force applied to the camera module 11 disappears or is smaller than the elastic force of the spring 18, the spring 18 can push the connecting arm 112 to move, so that the camera module 11 is returned.
Further, as shown in fig. 5, the lifting bracket 17 includes a first mounting block 171 and a second mounting block 172, the first mounting block 171 is disposed opposite to the second mounting block 172, the first mounting block 171 is disposed near the camera module 11, the second mounting block 172 is disposed far away from the camera module 11, a mounting hole 103 is formed in the first mounting block 171, the driving unit 14 and the speed reducer 135 are disposed in the mounting hole 103, and one end of the screw 134, which is far away from the speed reducer 135, is rotatably connected to the second mounting block 172.
Further, the second mounting block 172 is provided with a first shaft hole 104, a supporting member 177 is provided in the first shaft hole 104, and an end of the screw 134 is connected to the supporting member 177. In the present embodiment, the supporting element 177 is, for example, a bearing, but not limited thereto.
Further, as shown in fig. 5, the lifting bracket 17 further includes a third mounting block 173 and a fourth mounting block 174, the third mounting block 173 and the fourth mounting block 174 are disposed opposite to each other, the third mounting block 173 is fixed to one side of the first mounting block 171, the fourth mounting block 174 is fixed to one side of the second mounting block 172, and a guide rod 176 is connected between the third mounting block 173 and the fourth mounting block 174. In this embodiment, the driving unit 14 is disposed close to the through hole 202, and the driving unit 14 is far away from the control main board of the mobile terminal, that is, the driving unit 14 is far away from the heating device of the mobile terminal, and since the variable frequency motor generates heat during the working process, the driving unit 14 is separated from the heating device of the mobile terminal, so that local overheating of the mobile terminal can be avoided, and improvement of user experience is facilitated.
Further, the fourth mounting block 174 is provided with a second shaft hole 105, a stopper 178 is provided in the second shaft hole 105, and the end of the guide rod 176 abuts against the stopper 178.
Further, as shown in fig. 5, the lifting bracket 17 further includes a bottom plate 175, and the first mounting block 171, the second mounting block 172, the third mounting block 173, and the fourth mounting block 174 are fixed on the bottom plate 175, and the bottom plate 175 is connected to the mounting seat 231 of the housing 20 through screws and screw holes.
Further, the bottom of the camera module 11 is provided with a sliding plate 113, the sliding plate 113 is provided with a sliding rail 114 near the bottom surface of the mounting frame 12, and the camera module 11 and the mounting frame 12 are movably arranged on the mounting frame 12 through the matching of the sliding rail 114 and the sliding groove.
Further, the slide rail 114 is disposed in the fixing hole 106, and the magnetic member 111 is disposed in the fixing hole 106. In the present embodiment, the magnetic member 111 may be mounted at any position of the image pickup module 11, and the present invention is not limited to the above.
Further, camera module elevating gear 10 still includes sealing member 19, and sealing member 19 is fixed on mounting bracket 12, is equipped with the guiding hole on the sealing member 19, and camera module 11 passes the guiding hole. In this embodiment, the sealing member 19 and the slide rail 114 guide the camera module 11, so that the camera module 11 is ensured to move stably, the states of inclination, blocking and the like can not occur, and the product quality is improved.
Further, the driving unit 14 can drive the camera module 11 to extend out of or retract into the housing 20 from the through hole 202, and the camera module 11 can be a front camera module 11, a rear camera module 11, or a rotary camera module 11. When the camera module 11 is the front camera module 11, the camera module 11 can be moved in and out of the frame 21 of the housing 20 without occupying the display area of the mobile terminal, and the display area of the mobile terminal can be almost covered with the whole display screen 30. In the present embodiment, the Display 30 may be a Liquid Crystal Display (LCD) 30 or an Organic Light-Emitting Diode (OLED) 30.
The camera module lifting device 10 can improve the occupation ratio of the display screen 30 of the mobile terminal, and effectively solves the contradiction between the occupation ratio of the display screen 30 and the occupation of the display area of the front camera module 11. The camera module 11 of the invention meets the photographing function, realizes the maximization of the proportion of the display screen 30 and ensures the integrity of the display area.
Further, still be equipped with acceleration sensor (not shown) on the module of making a video recording 11, acceleration sensor and the 16 electric connection of control unit, acceleration sensor is used for detecting the acceleration of the module of making a video recording 11, and when the removal acceleration of the module of making a video recording 11 was greater than the default, drive unit 14 ordered about the module of making a video recording 11 and withdrawed in casing 20, can prevent effectively that mobile terminal from falling from the high altitude, the tip of the module of making a video recording 11 is direct to collide with the ground, causes the module of making a video recording 11 to damage. In this embodiment, the preset value can be freely selected according to actual needs, for example, 0, 1, 2, 3, 4m/s2However, the present invention is not limited thereto.
Further, the driving unit 14 is used as a driving component for driving the camera module 11 to move, the driving unit 14 is electrically connected to the circuit board of the mobile terminal, and the control unit 16 is a central processing unit of the mobile terminal, that is, the driving unit 14 is controlled by the central processing unit of the mobile terminal. Specifically, a driving button for driving the driving unit 14 may be disposed on the mobile terminal, a driving key for driving the driving unit 14, a photo app or a driving switch on the control interface may be disposed on the mobile terminal, and the driving unit 14 may be driven by voice or gesture, but the invention is not limited thereto.
Further, when the camera module 11 extends out of the housing 20 for taking a picture and the mobile terminal receives a power-off command or the power of the mobile terminal is low, the control unit 16 controls the driving unit 14 to drive the camera module 11 to retract into the housing 20, and then the mobile terminal executes the power-off command.
Further, when the camera module 11 is used, the control unit 16 controls the driving unit 14 to start working by clicking a relevant instruction on the operation interface of the mobile terminal or pressing a driving button, and the driving unit 14 drives the camera module 11 to retract into the housing 20.
The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (18)
1. The camera module lifting device is characterized by comprising a camera module, a driving unit, a transmission unit and a control unit, wherein the driving unit drives the camera module to do reciprocating telescopic movement through the transmission unit, and the control unit can control the power of the driving unit according to the moving position of the camera module so as to adjust the moving speed of the camera module.
2. The camera module lifting device according to claim 1, wherein the driving unit is a variable frequency drive, a magnetic member is disposed on the camera module, the camera module lifting device further comprises a position sensor disposed at one side of the camera module, and the position sensor detects a moving position of the camera module through a change of a magnetic field strength.
3. The camera module lifting device according to claim 2, wherein the camera module has an extended state and a retracted state, the driving unit can drive the camera module to switch between the extended state and the retracted state, when the camera module is in the extended state and the camera module is moved by being retracted by an external force, the control unit determines the magnitude of the detected magnetic field strength and the predetermined magnetic field strength, and when the detected magnetic field strength is greater than or equal to the predetermined magnetic field strength, the control unit controls the driving unit to drive the camera module to retract to the retracted state.
4. The camera module lifting device according to claim 1 or 2, wherein the process of the driving unit driving the camera module to move includes a start moving stage, an intermediate moving stage and a stop moving stage, the moving speed of the camera module in the intermediate moving stage is greater than that in the start moving stage, and the moving speed of the camera module in the intermediate moving stage is greater than that in the stop moving stage.
5. The camera module lifting device according to claim 1 or 2, wherein the driving unit includes a driving member, a screw rod, and a speed reducer, the driving member includes a connecting block and a sliding table, the connecting block is fixed to one side of the sliding table, a threaded hole is provided on the connecting block, the screw rod is disposed through the threaded hole, an end portion of the screw rod is connected to the speed reducer, the speed reducer is connected to a driving end of the driving unit, a connecting arm is provided on one side of the camera module, and the connecting arm is connected to the sliding table.
6. The camera module lifting device according to claim 5, wherein the camera module lifting device further comprises a lifting bracket and a spring, the driving unit is fixed on the lifting bracket, the end portion of the lead screw, which is far away from the speed reducer, is rotatably connected on the lifting bracket, a guide rod is arranged on the lifting bracket, the guide rod is parallel to and oppositely arranged with the lead screw, the sliding table is movably arranged on the guide rod, an accommodating cavity is arranged in the sliding table, one end of the connecting arm is arranged in the accommodating cavity, the spring is sleeved on the guide rod, the spring is located in the accommodating cavity, one end of the spring abuts against the wall of the accommodating cavity, and the other end of the spring abuts against the connecting arm.
7. The camera module lifting device according to claim 6, wherein the lifting bracket comprises a first mounting block and a second mounting block, the first mounting block is disposed opposite to the second mounting block, the first mounting block is disposed near the camera module, the second mounting block is disposed far from the camera module, the first mounting block is provided with a mounting hole, the variable frequency drive and the speed reducer are disposed in the mounting hole, and one end of the screw rod, which is far from the speed reducer, is rotatably connected to the second mounting block.
8. The camera module lifting device according to claim 7, wherein the lifting bracket further comprises a third mounting block and a fourth mounting block, the third mounting block is disposed opposite to the fourth mounting block, the third mounting block is fixed to one side of the first mounting block, the fourth mounting block is fixed to one side of the second mounting block, and the guide rod is connected between the third mounting block and the fourth mounting block.
9. The camera module lifting device according to claim 1 or 2, further comprising a mounting frame, wherein the camera module is movably disposed on the mounting frame, a sliding plate is disposed at a bottom of the camera module, a sliding rail is disposed on the sliding plate near a bottom surface of the mounting frame, and the camera module and the mounting frame are movably disposed on the mounting frame through cooperation between the sliding rail and the sliding groove.
10. The camera module lifting device of claim 9, wherein the slide rail is internally provided with a fixing hole, and the magnetic member is arranged in the fixing hole.
11. The camera module lifting device of claim 9, further comprising a sealing member fixed to the mounting frame, the sealing member having a guide hole through which the camera module passes.
12. The utility model provides a mobile terminal, its characterized in that, includes camera module elevating gear and casing, camera module elevating gear includes camera module, drive unit and the control unit, drive unit passes through drive unit orders about the reciprocal telescopic movement of camera module, the control unit can be according to the shift position control of camera module drive unit's power is used for adjusting the translation rate of camera module, the casing includes preceding shell and backshell, drive unit with drive unit's front towards preceding shell.
13. The mobile terminal of claim 12, wherein the driving unit is a variable frequency drive, the camera module is provided with a magnetic member, the camera module lifting device further comprises a position sensor, the position sensor is disposed at one side of the camera module, and the position sensor detects a moving position of the camera module through a change of a magnetic field strength.
14. The mobile terminal of claim 12, wherein the camera module has an extended state and a retracted state, the driving unit is capable of driving the camera module to switch between the extended state and the retracted state, when the camera module is in the extended state and the camera module is moved by being retracted by an external force, the control unit determines the magnitude of the detected magnetic field strength and the predetermined magnetic field strength, and when the detected magnetic field strength is greater than or equal to the predetermined magnetic field strength, the control unit controls the driving unit to drive the camera module to retract to the retracted state.
15. The mobile terminal according to claim 12 or 13, wherein the process of the driving unit driving the camera module to move includes a start moving stage, an intermediate moving stage and a stop moving stage, the moving speed of the camera module in the intermediate moving stage is greater than that in the start moving stage, and the moving speed of the camera module in the intermediate moving stage is greater than that in the stop moving stage.
16. The mobile terminal according to claim 12, wherein a through hole is formed in a frame of the housing, the camera module is disposed corresponding to the through hole, the camera module is movably disposed on the front housing, a mounting seat is formed on the rear housing, and bottom surfaces of the driving unit and the transmission unit are disposed on the mounting seat.
17. The mobile terminal of claim 16, wherein the driving unit is disposed near the through hole and the driving unit is disposed far from a control main board of the mobile terminal.
18. The mobile terminal of claim 12, wherein when the camera module extends out of the housing for taking a picture and the mobile terminal receives a power-off command or the power of the mobile terminal is low and the power is automatically turned off, the controller controls the variable frequency driver to drive the camera module to retract into the housing, and then the mobile terminal executes the power-off command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023319.1A CN111182187A (en) | 2020-01-09 | 2020-01-09 | Camera module lifting device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023319.1A CN111182187A (en) | 2020-01-09 | 2020-01-09 | Camera module lifting device and mobile terminal |
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| Publication Number | Publication Date |
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| CN111182187A true CN111182187A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010023319.1A Pending CN111182187A (en) | 2020-01-09 | 2020-01-09 | Camera module lifting device and mobile terminal |
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| CN (1) | CN111182187A (en) |
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| CN112965570A (en) * | 2021-03-02 | 2021-06-15 | Oppo广东移动通信有限公司 | Device control method, device, storage medium and electronic device |
| CN113271370A (en) * | 2021-06-10 | 2021-08-17 | Oppo广东移动通信有限公司 | Drive module, mobile terminal, control method and readable storage medium |
| CN113438402A (en) * | 2021-06-30 | 2021-09-24 | Oppo广东移动通信有限公司 | Telescopic camera assembly and electronic equipment |
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Application publication date: 20200519 |