CN110460703B - Camera lifting device and mobile terminal - Google Patents
Camera lifting device and mobile terminal Download PDFInfo
- Publication number
- CN110460703B CN110460703B CN201910736301.3A CN201910736301A CN110460703B CN 110460703 B CN110460703 B CN 110460703B CN 201910736301 A CN201910736301 A CN 201910736301A CN 110460703 B CN110460703 B CN 110460703B
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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
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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
-
- 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)
- Signal Processing (AREA)
- Multimedia (AREA)
- Accessories Of Cameras (AREA)
- Studio Devices (AREA)
Abstract
本申请的摄像头升降装置，包括：支架，包括驱动支架、连接支架及弹性连接件，连接支架用于固定摄像头，驱动支架与连接支架相抵并通过弹性连接件连接；驱动件，用于提供驱动支架进行升降的动力；齿轮齿条传动组件，连接驱动件与支架的驱动支架。本申请通过齿轮齿条传动组件进行传动，可以实现较大的传动比，带动摄像头较快升降，提高升降效率。
The camera lifting device of the present application includes: a bracket, including a driving bracket, a connecting bracket and an elastic connecting member, the connecting bracket is used to fix the camera, the driving bracket and the connecting bracket are against each other and connected through the elastic connecting member; a driving member, used to provide power for the driving bracket to lift; a gear rack transmission assembly, connecting the driving member and the driving bracket of the bracket. The present application uses the gear rack transmission assembly for transmission, which can achieve a larger transmission ratio, drive the camera to lift faster, and improve the lifting efficiency.
Description
Technical Field
The application relates to the technical field of terminals, in particular to a camera lifting device and a mobile terminal.
Background
At present, the maximization of the screen ratio is a design trend of mobile terminal equipment represented by a smart phone, and the front camera is required to be placed on the screen side of the mobile phone, so that a great challenge is brought to the design of the whole screen.
The existing mobile terminal adopts a camera lifting scheme to realize rapid extension and retraction of a camera, a camera hole is not required to be formed in the front of a screen of the mobile terminal, and the screen occupation ratio and the display effect of the front of the screen can be remarkably improved. However, the existing lifting schemes all adopt screw rod transmission, the transmission ratio is small, and the lifting efficiency is low.
Disclosure of Invention
The application provides a camera lifting device and a mobile terminal, which can improve the lifting efficiency of a camera.
In order to solve the technical problems, the present application provides a camera lifting device, comprising:
the bracket is used for fixing the camera;
The driving piece is used for providing power for driving the bracket to lift;
and the gear rack transmission assembly is connected with the driving piece and the bracket.
The gear and rack transmission assembly comprises a rack and a gear, the rack is connected with the bracket, the gear is connected with the driving piece, and the rack is meshed with the gear.
The gear comprises a first gear and a second gear, the gear is in a closed ring shape, the first gear and the second gear are respectively arranged at two ends of the gear and meshed with the inner side surface of the gear, the first gear is connected with the driving piece, and the second gear is rotatably arranged.
The support comprises a driving support, a connecting support and an elastic connecting piece, wherein two ends of the elastic connecting piece are respectively connected with the driving support and the connecting support and are arranged along the lifting direction of the support, the driving support is connected with the rack, the connecting support is used for fixing the camera, two sides of the connecting support are provided with limiting long holes along the lifting direction of the driving support, the driving support is provided with a limiting block, and the limiting block is slidably arranged in the limiting long holes and is propped against the side wall of the lower end of the limiting long hole under the action of the elastic connecting piece.
The rack is a hard rack, the rack is a bar, and the gear is meshed with the upper side surface of the rack.
The support comprises a driving support, a connecting support and an elastic connecting piece, wherein two ends of the elastic connecting piece are respectively connected with the driving support and the connecting support and are arranged along the lifting direction of the support, the driving support is connected with the rack, the connecting support is used for fixing the camera, one side, close to the driving support, of the connecting support is provided with a limiting plate perpendicular to the lifting direction of the driving support, and the driving support abuts against the limiting plate under the action of the elastic connecting piece.
The device comprises a rack, a driving support, a rack, a limiting sliding groove, a driving support and a driving slide, wherein the rack is connected with the driving support, the rack is connected with the driving slide, the driving slide is connected with the rack in a sliding mode, and the driving slide is connected with the rack in a sliding mode.
The support comprises a driving support, a connecting support and an elastic connecting piece, wherein the driving support is connected with the rack, the connecting support is used for fixing the camera, and the driving support abuts against the connecting support and is connected through the elastic connecting piece.
The connecting support is provided with a magnet which is used for being matched with a magnetic field sensor to generate a magnetic induction signal used for representing the position of the connecting support.
The application also provides a mobile terminal, comprising:
A housing;
the camera lifting device is arranged in the shell;
The camera is accommodated in a first position in the shell and can be driven by the camera lifting device to move from the first position to a second position so as to protrude out of the shell.
As described above, the camera lifting device comprises a bracket, a driving piece and a gear-rack transmission assembly, wherein the bracket is used for fixing a camera, the driving piece is used for providing power for driving the bracket to lift, and the gear-rack transmission assembly is connected with the driving piece and the bracket. The application drives through the gear rack driving component, can realize larger driving ratio, drive the camera to lift faster, raise the lifting efficiency.
The mobile terminal comprises the shell, the camera lifting device and the camera, wherein the camera lifting device is arranged in the shell, and the camera is accommodated in a first position in the shell and can be driven by the camera lifting device to move from the first position to a second position so as to protrude out of the shell. According to the application, the camera lifting device is used for realizing the extension and recovery of the camera, so that the comprehensive screen design can be realized, and the lifting efficiency of the camera is high.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of a camera lifting device according to an embodiment;
FIG. 2 is one of the partial schematic structural diagrams of the camera lifting device in FIG. 1;
FIG. 3 is a second schematic diagram of a portion of the camera lifting device in FIG. 1;
FIG. 4 is a third schematic view of a portion of the camera lifting device in FIG. 1;
FIG. 5 is a schematic diagram of a portion of the camera lifting device in FIG. 1;
FIG. 6 is a schematic view of a part of the camera lifting device in FIG. 1 in a buffer state;
FIG. 7 is a second schematic diagram of a portion of the camera lifting device in FIG. 1 in a buffered state;
FIG. 8 is a third schematic view of a portion of the camera lifting device in FIG. 1 in a buffered state;
fig. 9 is a schematic diagram showing the overall structure of a camera lifting device according to another embodiment;
FIG. 10 is a schematic view of another overall structure of the camera lifting device in FIG. 9;
FIG. 11 is one of the partial schematic structural views of the camera lifting device in FIG. 9;
FIG. 12 is a second schematic view of a portion of the camera lifting device of FIG. 9;
FIG. 13 is one of the partial schematic structural diagrams of the camera lifting device in FIG. 9 in a buffer state;
FIG. 14 is a second schematic view of a portion of the camera lifting device in FIG. 9 in a buffered state;
FIG. 15 is a third schematic view of a portion of the camera lifting device in FIG. 9 in a buffered state;
FIG. 16 is a schematic view of a portion of the camera lifting device in FIG. 9 in a buffered state;
FIG. 17 is a schematic diagram illustrating a configuration of a terminal when a camera is in a first position according to one embodiment;
FIG. 18 is a schematic diagram illustrating a configuration of a terminal when a camera is in a second position, according to one embodiment;
fig. 19 is a schematic view showing a structure of a terminal when the camera lifting device is in a buffer state according to an embodiment.
Detailed Description
Further advantages and effects of the present application will become apparent to those skilled in the art from the disclosure of the present application, which is described by the following specific examples.
In the following description, reference is made to the accompanying drawings which describe several embodiments of the application. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Although the terms first, second, etc. may be used herein to describe various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.
Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or" and/or "as used herein are to be construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of A, B, C, A and B, A and C, B and C, A, B and C". An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.
Fig. 1 is a schematic diagram showing the overall structure of a camera lifting device according to an embodiment. As shown in fig. 1, the camera lifting device of the present embodiment includes a bracket 13, a driving member 11, and a rack and pinion transmission assembly 12, where the bracket 13 is used for fixing a camera 19, the driving member 11 is used for providing power for driving the bracket 131 to lift, and the rack and pinion transmission assembly 12 connects the driving member 11 and the bracket 13.
The driving member 11 is used for providing power for driving the bracket 131 to lift, in this embodiment, the driving member 11 includes an electric motor 111 and a reduction gearbox 112, the electric motor 111 is, for example, a stepper motor, the reduction gearbox 112 is connected to an output shaft of the electric motor 111, and the electric motor 111 can control the lifting and lowering of the bracket 13 through forward and reverse rotation.
The rack and pinion assembly 12 includes a rack 121 and a pinion, the rack 121 is connected to the bracket 13, the pinion is connected to the driving member 11, and the rack 121 is engaged with the pinion.
The bracket 13 comprises a driving bracket 131, a connecting bracket 132 and an elastic connecting piece 133, wherein the driving bracket 131 is connected with the rack 121, the connecting bracket 132 is used for fixing the camera 19, and the driving bracket 131 is propped against the connecting bracket 132 and is connected through the elastic connecting piece 133.
Referring to fig. 1 and 2, in the present embodiment, the rack 121 is a flexible rack, such as a nylon rack, and the gears include a first gear 122 and a second gear 123, and the first gear 122 and the second gear 123 are plastic gears, for example. The rack 121 is a closed ring shape, the first gear 122 and the second gear 123 are respectively arranged at two ends of the rack 121 and are meshed with the inner side surface of the rack 121, the first gear 122 is connected with the reduction gearbox 112, the second gear 123 is rotatably arranged on the shell 17, when the first gear 122 rotates under the drive of the driving piece 11, the rack 121 moves in the corresponding direction under the drive of the first gear 122, and the second gear 123 rotates under the drive of the rack 121, so that the integral transmission of the gear-rack transmission assembly 12 is realized. In order to realize the linkage of the rack 121 and the bracket 13, the part of the driving bracket 131 and the part of the rack 121 are fixed together through dispensing, and the rack 121 can drive the bracket 13 to move when moving, so as to realize the lifting of the bracket 13.
In the present embodiment, the driving member 11 is located at one side of the support 13 in the descending direction, and the rack 121 is disposed in parallel with the support 13, so that the overall length of the camera lifting device can be shortened, and the lateral size of the camera lifting device can be reduced by reducing the thicknesses of the first gear 122 and the second gear 123.
Referring to fig. 3 to 5, in this embodiment, the elastic connecting member 133 is a pre-pressing spring, two ends of the elastic connecting member 133 are respectively connected with the driving bracket 131 and the connecting bracket 132 and are disposed along the lifting direction of the bracket 13, so that the elastic connecting member 133 can provide a relatively fixed retaining force between the driving bracket 131 and the connecting bracket 132 during the lifting process of the bracket 13, and when the driving bracket 131 moves along the lifting direction under the driving of the rack 121, the driving force can be further transmitted to the connecting bracket 132 through the elastic connecting member 133, so as to further drive the camera 19 to lift. The connecting bracket 132 comprises a bracket body 1321 and a camera positioning bracket 1322, the camera positioning bracket 1322 is clamped with the camera 19 to fix the camera 19, one end of the elastic connecting piece 133 is connected with the connecting bracket 132 through being connected with the camera positioning bracket 1322, two sides of the bracket body 1321 are provided with limiting long holes 1323 along the lifting direction of the driving bracket 131, the driving bracket 131 is provided with limiting blocks 1311, the limiting blocks 1311 are slidably arranged in the limiting long holes 1323 and are abutted against the side walls of the lower ends of the limiting long holes 1323 under the action of the elastic connecting piece 133, so that when the driving bracket 131 moves along the descending direction under the driving of the rack 121, driving force can be further transmitted to the connecting bracket 132 through the limiting blocks 1311, and then the camera 19 is driven to descend.
Referring to fig. 5, 6 and 7, by adopting the bracket 13 with the above structure, if the camera 19 is forced to be pushed back by an external force after extending out of the housing 17, the connecting bracket 132 connected with the camera 19 moves downward, so as to compress the elastic connecting member 133, and the lifting device of the camera 19 is in a buffer state, because the elastic connecting member 133 can be compressed, the connecting bracket 132 can move downward under the condition that the driving bracket 131 is kept motionless, so as to avoid the damage of the driving member 11 caused by forced inversion under the action of the external force. Meanwhile, when the connection bracket 132 descends in the buffered state, the stopper 1311 moves toward the upper end side wall of the stopper slot 1323 in the stopper slot 1323, and when the stopper 1311 abuts against the upper end side wall of the stopper slot 1323, the connection bracket 132 reaches the maximum descent distance. As shown in fig. 7, the housing 17 is provided with a limit stop 171, and the driving bracket 131 is provided with a limit stop rib 1312, and when the driving bracket 131 is driven to ascend by the driving member 11, the limit stop rib 1312 moves toward the limit stop 171 until abutting, thereby limiting the ascending distance of the bracket 13.
Referring to fig. 1,3 and 8, in the present embodiment, the connecting bracket 132 is further provided with a magnet 15, and the magnet 15 is used to cooperate with a magnetic field sensor 16 to generate a magnetic induction signal for characterizing the position of the connecting bracket 132. In actual implementation, when the connection bracket 132 is raised to the highest position, the magnetic induction signal generated between the magnet 15 and the magnetic field sensor 16 corresponds to the current position of the connection bracket 132, and when the connection bracket 132 is forced to push back by an external force before the bracket 131 is driven to descend by the driving member 11, the distance between the magnet 15 and the magnetic field sensor 16 is reduced, so that the magnetic induction signal is changed, and an electric signal is generated to control the electric motor 111 to reverse, and the bracket 13 is recovered to the lowest position. In addition, during the lifting process of the support 13, the lifting process of the support 13 can be monitored according to the magnetic induction signal generated between the magnet 15 and the magnetic field sensor 16, and if the change of the magnetic induction signal does not accord with the change rule of the lifting process, the electric signal can be generated to control the driving piece 11 to rotate reversely, so that the support 13 is recovered to the lowest position. In actual implementation, in order to protect the electric motor 111, when the distance between the magnetic induction signal reaction magnet 15 and the magnetic field sensor 16 is reduced, the electric motor 111 may be directly powered off to stop the electric motor 111.
When the camera lifting device of the embodiment works, the electric motor 111 rotates forward according to the lifting signal, and then drives the driving bracket 131 to lift through the rack and pinion transmission assembly 12, under the driving of the driving bracket 131, the elastic connecting piece 133 is utilized to provide a relatively fixed holding force between the driving bracket 131 and the connecting bracket 132, so that the connecting bracket 132 moves upwards from the lowest position, the camera 19 lifts, the electric motor 111 stops when driving for a set distance, the connecting bracket 132 lifts to the highest position, the limit stop rib 1312 abuts against the limit stop 171, and the camera 19 is in an extending state. When the electric motor 111 reverses according to the descending signal, the driving bracket 131 is driven to descend through the gear-rack transmission assembly 12, driving force is transmitted to the connecting bracket 132 through the limiting block 1311 on the driving bracket 131, and then the camera 19 is driven to descend, the electric motor 111 stops when driving a set distance, the connecting bracket 132 descends to the lowest position, the limiting stop rib 1312 abuts against the limiting stop 171, and the camera 19 is in a retracted state.
As described above, the camera lifting device comprises a bracket, a driving piece and a gear-rack transmission assembly, wherein the bracket is used for fixing a camera, the driving piece is used for providing power for driving the bracket to lift, and the gear-rack transmission assembly is connected with the driving piece and the bracket. The application carries out transmission through the gear rack transmission component, has no bevel gear in transmission form and is matched with the turning transmission of equal force, the transmission is stable, the lifting speed is high, and the lifting efficiency is high. In addition, all structural members are simple in form, convenient to manufacture and assemble in batches, small in structural quantity, and lower in cost, and part of structural materials are plastic.
Fig. 9 is a schematic diagram showing the overall structure of a camera lifting device according to another embodiment. Fig. 10 is a schematic diagram of another overall structure of the camera lifting device in fig. 9. As shown in fig. 9 and 10, the camera lifting device of the present embodiment includes a bracket 23, a driving member 21, and a rack and pinion transmission assembly 22, wherein the bracket 23 is used for fixing a camera 29, the driving member 21 is used for providing power for driving the bracket 231 to lift, and the rack and pinion transmission assembly 22 connects the driving member 21 and the bracket 23.
The driving member 21 is used for providing power for lifting the driving bracket 231, in this embodiment, the driving member 21 includes an electric motor 211 and a reduction gearbox 212, the electric motor 211 is, for example, a stepper motor, the reduction gearbox 212 is connected with an output shaft of the electric motor 211, and the electric motor 211 can control the lifting and lowering of the bracket 23 through forward and reverse rotation.
The rack and pinion gear assembly 22 includes a rack 221 and a pinion 222, the rack 221 is connected to the bracket 23, the pinion 222 is connected to the driving member 21, and the rack 221 is engaged with the pinion 222.
The support 23 includes a driving support 231, a connecting support 232, and an elastic connecting member 233, wherein the driving support 231 is connected with the rack 221, the connecting support 232 is used for fixing the camera 29, and the driving support 231 abuts against the connecting support 232 and is connected through the elastic connecting member 233.
In this embodiment, the rack 221 is a hard rack, for example, made of medium carbon steel or chrome molybdenum alloy steel. The rack 221 is bar-shaped and is arranged along the lifting direction of the bracket 23, the rack 221 is positioned between the gear 222 and the shell 27, the gear 222 is meshed with the upper side surface of the rack 221, the gear 222 is connected with the reduction gearbox 212, and when the gear 222 is driven by the driving piece 21 to rotate, the rack 221 moves in the corresponding direction under the driving of the gear 222, so that the integral transmission of the gear-rack transmission assembly 22 is realized. To realize the interlocking of the rack 221 and the bracket 23, the driving bracket 231 is fixedly connected to the rack 221, and in this embodiment, the driving bracket 231 is integrally formed from the upper end portion of the rack 221.
In this embodiment, the elastic connecting members 233 are two pre-pressing springs, two ends of the elastic connecting members 233 are respectively connected with the driving bracket 231 and the connecting bracket 232 and are arranged along the lifting direction of the bracket 23, so that the elastic connecting members 233 can provide a relatively fixed holding force between the driving bracket 231 and the connecting bracket 232 in the lifting process of the bracket 23, and when the driving bracket 231 moves along the lifting direction under the driving of the rack 221, the driving force can be further transmitted to the connecting bracket 232 through the elastic connecting members 233, so as to drive the camera 29 to lift.
Referring to fig. 11 and 12 together, in the present embodiment, the connection bracket 232 includes a bracket body 2321, a limiting plate 2322 and a camera positioning bracket 2323, the camera positioning bracket 2323 is engaged with the camera 29 to fix the camera 29, a through hole for limiting the elastic connection member 233 is defined between two sides of the camera positioning bracket 2323 and the bracket body 2321, and one end of the elastic connection member 233 passes through the through hole and abuts against the upper side of the bracket body 2321. The support body 2321 is equipped with the limiting plate 2322 of the direction of lifting of perpendicular drive support 231 in the one side that is close to drive support 231, limiting plate 2322 passes through spacing buckle 2325 and is connected with support body 2321, is equipped with the hole of stepping down that supplies rack 221 to pass on the limiting plate 2322, and rack 221 passes behind this hole of stepping down and is connected with elastic connection 233, and the upper end of rack 221 in this embodiment is drive support 231 promptly, and drive support 231 supports under elastic connection 233's effect on the surface of limiting plate 2322 towards elastic connection 233 one side. Thus, when the rack 221 moves along the descending direction, the driving force can be further transmitted to the connection bracket 232 through the limiting plate 2322, so as to drive the camera 29 to descend. Since the elastic connectors 233 are two and are disposed on both sides of the camera 29, the lifting process is more stable and space can be saved. In addition, the rack 221 extends into the lower part of the connecting bracket 232 when ascending, so that the length of the camera lifting device can be reduced, and the width of the rack 221 can be increased, thereby improving the transmission stability.
Referring to fig. 13 and 14 together, by adopting the bracket 23 with the above structure, if the camera 29 is forced to push back by an external force after extending out of the housing 27, the connection bracket 232 connected to the camera 29 moves downward, so as to compress the elastic connection member 233, and the camera lifting device is in a buffer state, because the elastic connection member 233 can be compressed, the connection bracket 232 can move downward under the condition that the driving bracket 231 is kept motionless, so as to avoid the electric motor 211 from being forced to reverse under the action of the external force and damage.
As shown in fig. 1, 2 and 13, the camera lifting device of the present embodiment further includes a limit sliding groove 223 and a limit sliding block 225, the limit sliding groove 223 is disposed along the lifting direction of the support 23, the limit sliding block 225 is connected with the rack 221, in this embodiment, the limit sliding block 225 is a rivet, the limit sliding groove 223 is formed on the housing 27, the limit sliding block 225 is slidably connected with the limit sliding groove 223, so that the rack 221 is fixed with the housing 27 in the thickness direction of the housing 27 and limits the movement direction of the rack 221, the rack 221 is prevented from shaking up and down when moving, and the rack 221 is located below the circuit board 28 in the thickness direction of the housing 27, can extend into the lower side of the circuit board 28 in the lifting process, no movement interference can occur, meanwhile, the layout area of the circuit board 28 can be increased, and the length of the camera lifting device can be reduced.
As shown in fig. 15, the housing 27 is provided with a limit stop 272 and a guide rib 271, the connecting bracket 232 is provided with a limit rib 2326, and the limit rib 2326 is respectively matched with the limit stop 272 and the guide rib 271, so that the movement distance of the connecting bracket 232 can be limited by the limit stop 272, and the movement direction of the connecting bracket 232 can be limited by the guide rib 271, so that the connecting bracket 232 is ensured not to incline.
Referring to fig. 9 and 16, in the present embodiment, the connecting bracket 232 is further provided with a magnet 25, and the magnet 25 is used to cooperate with a magnetic field sensor 26 to generate a magnetic induction signal for indicating the position of the connecting bracket 232. In actual implementation, when the connection bracket 232 is raised to the highest position, the magnetic induction signal generated between the magnet 25 and the magnetic field sensor 26 corresponds to the current position of the connection bracket 232, and when the connection bracket 232 is forced to push back by an external force before the bracket 231 is driven to descend by the driving member 21, the distance between the magnet 25 and the magnetic field sensor 26 is reduced, so that the magnetic induction signal is changed, and further an electric signal is generated to control the electric motor 211 to reverse, and the bracket 23 is recovered to the lowest position. In addition, during the lifting process of the stand 23, the lifting process of the stand 23 can be monitored according to the magnetic induction signal generated between the magnet 25 and the magnetic field sensor 26, and if the change of the magnetic induction signal does not conform to the change rule of the lifting process, the electric signal can be generated to control the driving member 21 to reverse, so that the stand 23 can be recovered to the lowest position. In actual implementation, in order to protect the electric motor 211, when the distance between the magnetic induction signal reaction magnet 25 and the magnetic field sensor 26 is reduced, the electric motor 211 may be directly powered off, and the electric motor 211 may be stopped.
When the camera lifting device of the embodiment works, the electric motor 211 rotates forward according to the lifting signal, and then drives the driving bracket 231 to lift through the rack and pinion transmission assembly 22, under the driving of the driving bracket 231, the elastic connecting piece 233 is utilized to provide a relatively fixed holding force between the driving bracket 231 and the connecting bracket 232, so that the connecting bracket 232 moves upwards from the lowest position, the camera 29 lifts, the electric motor 211 stops when driving for a set distance, the bracket 23 lifts to the highest position, the limit stop rib is propped against the limit stop 272, and the camera 29 is in an extending state. When the electric motor 211 is reversed according to the descending signal, the driving bracket 231 is driven to descend through the gear-rack transmission assembly 22, driving force is transmitted to the connecting bracket 232 through the limiting plate 2322 on the driving bracket 231, and then the camera 29 is driven to descend, the electric motor 211 stops when being driven for a set distance, the bracket 23 descends to the lowest position, and the camera 29 is in a retracted state.
As described above, the camera lifting device comprises a bracket, a driving piece and a gear-rack transmission assembly, wherein the bracket is used for fixing a camera, the driving piece is used for providing power for driving the bracket to lift, and the gear-rack transmission assembly is connected with the driving piece and the bracket. The application carries out transmission through the gear rack transmission component, has no bevel gear in transmission form and is matched with the turning transmission of equal force, the transmission is stable, the lifting speed is high, and the lifting efficiency is high. In addition, all structural members are simple in form, convenient to manufacture and assemble in batches, small in structural quantity, and lower in cost, and part of structural materials are plastic.
Referring to fig. 17 to 19, the present application further provides a mobile terminal, which includes a housing 31, a camera 32, and a camera lifting device as described above.
In this embodiment, the housing 31 includes a front shell, on which a touch screen glass 311 is fixed, and the camera 32 is a front camera. The housing 31 is used to house mobile terminal components, including components fixed in the housing 31 and components located in the housing 31 in a specific state.
As shown in fig. 17, the camera lifting device is disposed in the housing 31, and the camera 32 is accommodated in a first position in the housing 31, and as shown in fig. 18, the camera 32 may be further driven by the camera lifting device to move from the first position to a second position to protrude from the housing 31. In the second position, the camera 32 can take a picture, and when the camera 32 is driven by the camera lifting device to move from the second position to the first position, the camera 32 is all contained in the housing 31.
In addition, as shown in fig. 19, after the camera 32 is extended out of the housing 31, the camera may be retracted to be in a buffer state when external force is applied, at this time, the driving member of the camera lifting device does not work, and the protection of the structure is achieved by the elastic connection member in the camera lifting device.
The mobile terminal comprises the shell, the camera lifting device and the camera, wherein the camera lifting device is arranged in the shell, and the camera is accommodated in a first position in the shell and can be driven by the camera lifting device to move from the first position to a second position so as to protrude out of the shell. According to the application, the camera lifting device is used for realizing the extension and recovery of the camera, so that the comprehensive screen design can be realized, and the lifting efficiency of the camera is high.
The above embodiments are merely illustrative of the principles of the present application and its effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the application. Accordingly, it is intended that all equivalent modifications and variations of the application be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736301.3A CN110460703B (en) | 2019-08-09 | 2019-08-09 | Camera lifting device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736301.3A CN110460703B (en) | 2019-08-09 | 2019-08-09 | Camera lifting device and mobile terminal |
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| Publication Number | Publication Date |
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| CN110460703A CN110460703A (en) | 2019-11-15 |
| CN110460703B true CN110460703B (en) | 2025-05-13 |
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| CN201910736301.3A Active CN110460703B (en) | 2019-08-09 | 2019-08-09 | Camera lifting device and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111131710B (en) * | 2019-12-31 | 2024-12-20 | 联想(北京)有限公司 | Electronic equipment |
| CN111182186B (en) * | 2020-01-09 | 2021-11-02 | 深圳传音控股股份有限公司 | Camera module lifting device and electronic equipment |
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