CN107154988B - Mobile terminal and double-zoom camera thereof - Google Patents
Mobile terminal and double-zoom camera thereof Download PDFInfo
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- CN107154988B CN107154988B CN201710344564.0A CN201710344564A CN107154988B CN 107154988 B CN107154988 B CN 107154988B CN 201710344564 A CN201710344564 A CN 201710344564A CN 107154988 B CN107154988 B CN 107154988B
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- side wall
- camera
- circumferential direction
- middle position
- hall sensor
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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
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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
Abstract
The invention discloses a mobile terminal and a double-zoom camera thereof, wherein the double-zoom camera comprises a first camera and a second camera. The first camera and the second camera are arranged adjacently, the first A side wall of the first camera and the second A side wall of the second camera are arranged in parallel, and the second A side wall is not provided with a permanent magnet, so that when the double-zoom-lens is precisely installed, a small attraction force or repulsion force generated between the permanent magnets cannot be generated or is generated between the first camera and the second camera, when glue is not dried, the first camera and the second camera cannot generate relative displacement, or the relative displacement can be within a specified error, and the installation yield of the double-zoom-lens is greatly improved; and can be close to the setting with two cameras unrestricted, first camera can rotate the setting at will, improves the convenience of design.
Description
Technical Field
The invention relates to the field of photo or video shooting, in particular to a mobile terminal and a double-zoom camera thereof.
Background
The double cameras are two cameras which are arranged in parallel, when images are shot, different images are shot according to respective performances and then are synthesized, and the shooting effect is higher than that of a single camera. For example, one camera is responsible for taking a wide-angle image and the other camera is responsible for taking a far-focus image; alternatively, one camera is responsible for taking color images, another for taking black and white images, and so on.
At present, two cameras are all provided with a focusing function, for example, refer to fig. 1, be the schematic diagram of a two focusing cameras among the prior art promptly, the left motor of its left camera on the left is square, and its four apex angles are provided with four permanent magnets respectively, and the right motor of its right camera is square equally, and sets up side by side with the left motor of left camera, and its four apex angles are provided with four permanent magnets respectively equally. Because the left motor and the right motor are both provided with the plurality of permanent magnets, if the left motor and the right motor are close to each other, the mounting precision can be affected, for example, after the left motor is mounted, the right motor is mounted through glue with high precision, when the glue is not solidified, the position of the right motor can be slightly changed due to the influence of the suction force or the repulsion force between the permanent magnets, the mounting precision requirement of the double cameras is high, the mounting error is generally not higher than 50 μm, and the production yield of the double cameras is easily affected.
Disclosure of Invention
The invention mainly aims to provide a mobile terminal and a double-zoom camera thereof, which can improve the installation yield.
In order to achieve the above object, the present invention provides a dual zoom camera, including a first camera and a second camera,
the first camera comprises a first motor, the first motor comprises a first shell, a first coil stator and a first magnet rotor, and the first coil stator and the first magnet rotor are arranged in the first shell; the first shell comprises a first top end, a first bottom end, a first side wall A, a first side wall B, a first side wall C and a first side wall D, the first side wall A, the first side wall B, the first side wall C and the first side wall D are sequentially connected in a clockwise mode to form a first rectangular cavity, and the first top end and the first bottom end are respectively arranged at two ends of the first rectangular cavity; the first coil stator is arranged at the first bottom end of the first shell, and the first magnet rotor is arranged on one side, facing the first top end, of the first coil stator;
the second camera comprises a second motor, the second motor comprises a second shell, and a second coil stator and a second magnet rotor which are arranged in the second shell; the second shell comprises a second top end, a second bottom end, a second side wall A, a second side wall B, a second side wall C and a second side wall D, the second side wall A, the second side wall B, the second side wall C and the second side wall D are sequentially connected in a clockwise mode to form a second rectangular cavity, and the second top end and the second bottom end are respectively arranged at two ends of the second rectangular cavity; the second coil stator is arranged at the second bottom end of the second shell, and the second magnet rotor is arranged on one side, facing the second top end, of the second coil stator;
the first A side wall and the second A side wall are adjacent and arranged in parallel; and a second permanent magnet on the second magnet rotor is arranged far away from the second A side wall.
Further, the first motor and the second motor are both closed-loop motors;
a first Z-axis Hall sensor corresponding to a first permanent magnet on the first magnet mover is arranged on the side wall of the first rectangular cavity;
and a second Z-axis Hall sensor corresponding to the second permanent magnet is arranged on the side wall of the second rectangular cavity.
Furthermore, four first permanent magnets are arranged on the first magnet rotor, are positioned on the same plane and are respectively arranged at four inner edges of the first rectangular cavity.
Further, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second B-side wall in the circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first B-side wall in the circumferential direction, or at a middle position of the first C-side wall in the circumferential direction.
Further, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second C-side wall in the circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first B-side wall in the circumferential direction, or at a middle position of the first C-side wall in the circumferential direction, or at a middle position of the first D-side wall in the circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first a-side wall in the circumferential direction.
Further, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second D-side wall in the circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first C-side wall in the circumferential direction, or at a middle position of the first D-side wall in the circumferential direction.
Furthermore, the second permanent magnet includes two, two the second permanent magnet is located the coplanar, and sets up respectively and is being close to the second B lateral wall along the intermediate position of circumferential direction with the second C lateral wall along the intermediate position of circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first C-side wall in the circumferential direction, or at a middle position of the first B-side wall in the circumferential direction.
Furthermore, the second permanent magnet includes two, two the second permanent magnet is located the coplanar, and sets up respectively and is being close to the second B lateral wall along the intermediate position of circumferential direction with the second D lateral wall along the intermediate position of circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first C-side wall in the circumferential direction.
Furthermore, the second permanent magnet includes two, two the second permanent magnet is located the coplanar, and sets up respectively and is being close to the second C lateral wall along the intermediate position of circumferential direction with the second D lateral wall along the intermediate position of circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first C-side wall in the circumferential direction, or at a middle position of the first D-side wall in the circumferential direction.
Further, the second permanent magnet includes threely, three the second permanent magnet is located the coplanar, and sets up respectively and is being close to second B lateral wall along the intermediate position of circumferential direction, second C lateral wall along the intermediate position of circumferential direction with second D lateral wall along the intermediate position of circumferential direction.
Further, the first Z-axis hall sensor is disposed at a middle position of the first C-side wall in the circumferential direction.
Further, the first Z-axis hall sensor is located between the first coil stator and the first magnet mover;
the second Z-axis hall sensor is located between the second coil stator and the second magnet mover.
The invention further provides a mobile terminal which comprises a terminal main body, wherein the double-zoom camera is arranged on the terminal main body.
According to the double-zoom camera provided by the embodiment of the invention, the first camera and the second camera are adjacently arranged, the first A side wall of the first camera and the second A side wall of the second camera are arranged in parallel, and the second A side wall is not provided with the permanent magnet, so that when the double-zoom camera is precisely installed, a small suction force or repulsion force generated between the permanent magnets cannot be generated or is only generated between the first camera and the second camera, when glue is not dried, the first camera and the second camera cannot be relatively displaced, or the relative displacement can be within a specified error, and the installation yield of the double-zoom camera is greatly improved; and can be close to the setting with two cameras unrestricted, first camera can rotate the setting at will, improves the convenience of design.
Drawings
Fig. 1 is a schematic layout diagram of hall sensors and permanent magnets in a first camera and a second camera of a double-zoom camera in the prior art;
fig. 2 is a schematic layout diagram of hall sensors and permanent magnets in a first camera and a second camera of a double zoom camera according to an embodiment of the present invention;
fig. 3 is a schematic layout diagram of hall sensors and permanent magnets in a first camera and a second camera of a double zoom camera according to an embodiment of the present invention;
fig. 4 is a schematic layout diagram of hall sensors and permanent magnets in a first camera and a second camera of a double zoom camera according to an embodiment of the present invention;
fig. 5 is a schematic layout diagram of hall sensors and permanent magnets in a first camera and a second camera of a double zoom camera according to an embodiment of the present invention;
fig. 6 is a schematic layout diagram of hall sensors and permanent magnets in a first camera and a second camera of a double zoom camera according to an embodiment of the present invention;
fig. 7 is a schematic layout diagram of hall sensors and permanent magnets in a first camera and a second camera of a double zoom camera according to an embodiment of the present invention;
fig. 8 is a schematic layout diagram of hall sensors and permanent magnets in the first camera and the second camera of the binary zoom camera according to the embodiment of the present invention;
fig. 9 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2, an embodiment of the present invention provides a binary zoom camera 1 including a first camera 100 and a second camera 200.
The first camera 100 includes a first motor including a first housing, and a first coil stator and a first magnet mover 120 disposed in the first housing. The first coil stator is fixed in the first shell and is a coil wound in a preset winding direction, and when the first coil stator is electrified, a magnetic field along the axial direction of the coil can be generated; the first magnet mover 120 is a module that can move in the first housing along the Z-axis direction, and the first lens 130 of the first camera 100 is disposed on the first magnet mover 120.
The first shell comprises a first top end, a first bottom end, a first side wall A111, a first side wall B112, a first side wall C113 and a first side wall D114, wherein the first side wall A111, the first side wall B112, the first side wall C113 and the first side wall D114 are sequentially connected clockwise to form a first rectangular cavity, and the first top end and the first bottom end are respectively arranged at two ends of the first rectangular cavity; that is, the first housing is a rectangular parallelepiped or cube, and is conveniently disposed side by side with the second housing described below. The first lens 130 is generally disposed at the first top end, and the photosensitive module is generally disposed at the bottom end at the first bottom end.
The first coil stator is arranged at the first bottom end of the first shell, the first magnet rotor 120 is arranged on one side, facing the first top end, of the first coil stator, namely the first coil stator and the first magnet rotor 120 are arranged along the axial direction of the first rectangular cavity, and when the first coil stator is electrified, the first magnet rotor 120 is driven to reciprocate along the axial direction of the first rectangular cavity, so that optical focusing is realized.
The second camera 200 includes a second motor including a second housing, and a second coil stator and a second magnet mover disposed in the second housing; the second coil stator is fixed in the second shell and is a coil wound in a preset winding direction, and when the second coil stator is electrified, a magnetic field along the axial direction of the coil can be generated; the first magnet mover 120 is a module that can move in the second housing along the Z-axis direction, and the second lens 230 of the second camera 200 is disposed on the first magnet mover 120.
The second casing comprises a second top end, a second bottom end, a second a side wall 211, a second B side wall 212, a second C side wall 213 and a second D side wall 214, the second a side wall 211, the second B side wall 212, the second C side wall 213 and the second D side wall 214 are sequentially connected clockwise to form a second rectangular cavity, and two ends of the second rectangular cavity are respectively the second top end and the second bottom end, that is, the second casing is a cuboid or a cube, so that the second casing can be conveniently arranged side by side with the first casing. The second top end is generally provided with the second lens 230, and the second bottom end is generally provided with a photosensitive module and the like.
The second coil stator is arranged at the second bottom end of the second shell, and the second magnet rotor is arranged on one side, facing the second top end, of the second coil stator; the second coil stator and the second magnet rotor are arranged along the axial direction of the second rectangular cavity, and when the second coil stator is electrified, the second magnet rotor is driven to reciprocate along the axial direction of the second rectangular cavity, so that optical focusing is realized.
The first a sidewall 111 and the second a sidewall 211 are disposed adjacent to and in parallel; the second permanent magnet on the second magnet mover is disposed away from the second a sidewall 211. Since the second permanent magnet is not disposed on the second a-side wall 211, the magnetic interference between the first motor and the second motor can be reduced regardless of the position of the first magnet mover 120 of the first motor where the permanent magnet is installed.
In this embodiment, the first motor and the second motor are both closed-loop motors; a first Z-axis hall sensor 140 corresponding to the first permanent magnet 121 on the first magnet mover 120 is disposed on the sidewall of the first rectangular cavity; and a second Z-axis Hall sensor 240 corresponding to the second permanent magnet is arranged on the side wall of the second rectangular cavity. The first Z-axis hall sensor 140 is positioned between the first coil stator and the first magnet mover 120; the second Z-axis hall sensor 240 is positioned between the second coil stator and the second magnet mover. The first Z-axis hall sensor 140 and the second Z-axis hall sensor 240 are both magnetic field sensors manufactured according to the hall effect, and can sense the change of the magnetic field and generate corresponding electrical signals according to the change of the magnetic field. The first Z-axis hall sensor 140 and the second Z-axis hall sensor 240 are mainly used for sensing the positions of the first lens 130 and the second lens 230 in the corresponding Z-axis directions thereof, and feeding corresponding electric signals back to the corresponding processors, and the processors control the corresponding first coil stator and the corresponding second coil stator to control the first magnet mover 120 and the second magnet mover to move in the corresponding Z-axis directions thereof, so as to implement optical zooming. The closed-loop motor is accurately controlled and quickly reflected. In other embodiments, the first motor and the second motor may be open-loop motors. The first Z-axis hall sensor 140 is positioned between the first coil stator and the first magnet mover 120, and the second Z-axis hall sensor 240 is positioned between the second coil stator and the second magnet mover.
In this embodiment, the first magnet mover 120 is provided with four first permanent magnets 121, and the four first permanent magnets 121 are located on the same plane and are respectively disposed at four inner corners of the first rectangular cavity. That is, the four first permanent magnets 121 are respectively disposed at an included angle between the first a side wall 111 and the first B side wall 112, an included angle between the first B side wall 112 and the first C side wall 113, an included angle between the first C side wall 113 and the first D side wall 114, and an included angle between the first D side wall 114 and the first a side wall 111 of the first magnet mover 120, and the four first permanent magnets 121 are uniformly disposed, so that the stress of the first magnet mover 120 can be conveniently controlled, for example, when the first magnet mover is controlled to move along the axis (Z axis) of the first rectangular cavity, the stress is relatively uniform.
Referring to fig. 2, in an embodiment, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second B sidewall 212 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first B-side wall 112 in the circumferential direction, or at a middle position of the first C-side wall 113 in the circumferential direction. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first B-side wall 112 along the circumferential direction or at the middle position of the first C-side wall 113 along the circumferential direction, the distance from the second permanent magnet disposed at the middle position close to the second B-side wall 212 along the circumferential direction is far, and the second permanent magnet does not substantially generate magnetic interference with the first Z-axis hall sensor 140, so that the zoom accuracy of the first camera 100100 is improved, and the installation yield of the double zoom camera 1 is improved.
Referring to fig. 3, in an embodiment, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second C-side wall 213 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first B-side wall 112 in the circumferential direction, or at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first D-side wall 114 in the circumferential direction. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first B-side wall 112 along the circumferential direction, or at the middle position of the first C-side wall 113 along the circumferential direction, or at the middle position of the first D-side wall 114 along the circumferential direction, the distance from the second permanent magnet disposed at the middle position close to the second C-side wall 213 along the circumferential direction is far, and the second permanent magnet basically does not generate magnetic interference to the first Z-axis hall sensor 140, so that the zooming accuracy of the first camera 100 is improved, and the installation yield of the double-zoom camera 1 is improved. In other embodiments, when the first Z-axis hall sensor 140 is disposed at the middle position of the first a-side wall 111 along the circumferential direction, the first Z-axis hall sensor is still spaced from the second permanent magnet by at least the distance of the second lens 230, and the second permanent magnet still does not substantially generate magnetic interference with the first Z-axis hall sensor 140, so that the zoom accuracy of the first camera 100 is improved, and the installation yield of the dual zoom camera 1 is improved.
Referring to fig. 4, in an embodiment, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second D-side wall 214 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first D-side wall 114 in the circumferential direction. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first C-side wall 113 along the circumferential direction or at the middle position of the first D-side wall 114 along the circumferential direction, the distance from the second permanent magnet disposed at the middle position close to the second D-side wall 214 along the circumferential direction is far, and the second permanent magnet does not substantially generate magnetic interference to the first Z-axis hall sensor 140, so that the zooming accuracy of the first camera 100100 is improved, and the installation yield of the double zoom camera 1 is improved.
Referring to fig. 5, in an embodiment, the second permanent magnets include two second permanent magnets, and the two second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second B side wall 212 in the circumferential direction and a middle position of the second C side wall 213 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first B-side wall 112 in the circumferential direction. In this embodiment, the two second permanent magnets are located on the same plane, and are stressed uniformly relatively. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first C-side wall 113 in the circumferential direction or at the middle position of the first B-side wall 112 in the circumferential direction, the two second permanent magnets are disposed in a diagonal line with the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is substantially avoided, and the accuracy of optical zooming of the first camera 100 is improved. In this embodiment, the second Z-axis hall sensor 240 is generally disposed at the middle position of the second C-side wall 213 in the circumferential direction, so as to reduce the interference of the first permanent magnet 121.
Referring to fig. 6, in an embodiment, the second permanent magnets include two second permanent magnets, and the two second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second B side wall 212 in the circumferential direction and a middle position of the second D side wall 214 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction. In this embodiment, the two second permanent magnets are located on the same plane, and are stressed uniformly relatively. The two second permanent magnets are far away from the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is basically avoided, and the precision of optical zooming of the first camera 100 is improved. In the present embodiment, the second Z-axis hall sensor 240 may be disposed at a generally middle position of the second B-side wall 212 in the circumferential direction, or at a lower middle position of the second D-side wall 214 in the circumferential direction.
Referring to fig. 7, in an embodiment, the second permanent magnets include two second permanent magnets, and the two second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second C-side wall 213 in the circumferential direction and a middle position of the second D-side wall 214 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first D-side wall 114 in the circumferential direction. In this embodiment, the two second permanent magnets are located on the same plane, and are stressed uniformly relatively. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first C-side wall 113 in the circumferential direction or at the middle position of the first D-side wall 114 in the circumferential direction, the two second permanent magnets are disposed in a diagonal line with the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is substantially avoided, and the precision of optical zooming of the first camera 100 is improved. In this embodiment, the second Z-axis hall sensor 240 is generally disposed at the middle position of the second C-side wall 213 in the circumferential direction, so as to reduce the interference of the first permanent magnet 121.
Referring to fig. 8, in an embodiment, the number of the second permanent magnets includes three, and the three second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second B side wall 212 in the circumferential direction, a middle position of the second C side wall 213 in the circumferential direction, and a middle position of the second D side wall 214 in the circumferential direction; the first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction. In this embodiment, the three second permanent magnets are located on the same plane, and are stressed uniformly relatively. The three second permanent magnets are far away from the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is basically avoided, and the precision of optical zooming of the first camera 100 is improved. In this embodiment, the second Z-axis hall sensor 240 is disposed at the middle position of the second C-side wall 213 in the circumferential direction, so as to reduce interference of the first permanent magnet 121.
According to the double-zoom camera 1, the first camera 100 and the second camera 200 are arranged adjacently, the first A side wall 111 of the first camera 100 is arranged in parallel with the second A side wall 211 of the second camera 200, and the second A side wall 211 is not provided with the permanent magnet, so that when the double-zoom camera is precisely installed, a small attraction force or repulsion force generated between the permanent magnets cannot be generated or is only generated between the first camera 100 and the second camera 200, when glue is not dried, the first camera 100 and the second camera 200 cannot be relatively displaced or the relative displacement can be within a specified error, and the installation yield of the double-zoom camera 1 is greatly improved; and two cameras can be arranged close to each other without limit, and the first camera 100 can be arranged in a rotating manner at will, so that the convenience of design is improved.
Referring to fig. 9, an embodiment of the present invention further provides a mobile terminal, which is generally an electronic device such as a mobile phone, a camera, a tablet computer, and the like, and includes a terminal body 2, where a dual zoom camera 11 is disposed on the terminal body 2.
Referring to fig. 2, the binary zoom camera 1 includes a first camera 100 and a second camera 200.
The first camera 100 includes a first motor including a first housing, and a first coil stator and a first magnet mover 120 disposed in the first housing. The first coil stator is fixed in the first shell and is a coil wound in a preset winding direction, and when the first coil stator is electrified, a magnetic field along the axial direction of the coil can be generated; the first magnet mover 120 is a module that can move in the first housing along the Z-axis direction, and the first lens 130 of the first camera 100 is disposed on the first magnet mover 120.
The first shell comprises a first top end, a first bottom end, a first side wall A111, a first side wall B112, a first side wall C113 and a first side wall D114, wherein the first side wall A111, the first side wall B112, the first side wall C113 and the first side wall D114 are sequentially connected clockwise to form a first rectangular cavity, and the first top end and the first bottom end are respectively arranged at two ends of the first rectangular cavity; that is, the first housing is a rectangular parallelepiped or cube, and is conveniently disposed side by side with the second housing described below. The first lens 130 is generally disposed at the first top end, and the photosensitive module is generally disposed at the bottom end at the first bottom end.
The first coil stator is arranged at the first bottom end of the first shell, the first magnet rotor 120 is arranged on one side, facing the first top end, of the first coil stator, namely the first coil stator and the first magnet rotor 120 are arranged along the axial direction of the first rectangular cavity, and when the first coil stator is electrified, the first magnet rotor 120 is driven to reciprocate along the axial direction of the first rectangular cavity, so that optical focusing is realized.
The second camera 200 includes a second motor including a second housing, and a second coil stator and a second magnet mover disposed in the second housing; the second coil stator is fixed in the second shell and is a coil wound in a preset winding direction, and when the second coil stator is electrified, a magnetic field along the axial direction of the coil can be generated; the first magnet mover 120 is a module that can move in the second housing along the Z-axis direction, and the second lens 230 of the second camera 200 is disposed on the first magnet mover 120.
The second casing comprises a second top end, a second bottom end, a second a side wall 211, a second B side wall 212, a second C side wall 213 and a second D side wall 214, the second a side wall 211, the second B side wall 212, the second C side wall 213 and the second D side wall 214 are sequentially connected clockwise to form a second rectangular cavity, and two ends of the second rectangular cavity are respectively the second top end and the second bottom end, that is, the second casing is a cuboid or a cube, so that the second casing can be conveniently arranged side by side with the first casing. The second top end is generally provided with the second lens 230, and the second bottom end is generally provided with a photosensitive module and the like.
The second coil stator is arranged at the second bottom end of the second shell, and the second magnet rotor is arranged on one side, facing the second top end, of the second coil stator; the second coil stator and the second magnet rotor are arranged along the axial direction of the second rectangular cavity, and when the second coil stator is electrified, the second magnet rotor is driven to reciprocate along the axial direction of the second rectangular cavity, so that optical focusing is realized.
The first a sidewall 111 and the second a sidewall 211 are disposed adjacent to and in parallel; the second permanent magnet on the second magnet mover is disposed away from the second a sidewall 211. Since the second permanent magnet is not disposed on the second a-side wall 211, the magnetic interference between the first motor and the second motor can be reduced regardless of the position of the first magnet mover 120 of the first motor where the permanent magnet is installed.
In this embodiment, the first motor and the second motor are both closed-loop motors; a first Z-axis hall sensor 140 corresponding to the first permanent magnet 121 on the first magnet mover 120 is disposed on the sidewall of the first rectangular cavity; and a second Z-axis Hall sensor 240 corresponding to the second permanent magnet is arranged on the side wall of the second rectangular cavity. The first Z-axis hall sensor 140 is positioned between the first coil stator and the first magnet mover 120; the second Z-axis hall sensor 240 is positioned between the second coil stator and the second magnet mover. The first Z-axis hall sensor 140 and the second Z-axis hall sensor 240 are both magnetic field sensors manufactured according to the hall effect, and can sense the change of the magnetic field and generate corresponding electrical signals according to the change of the magnetic field. The first Z-axis hall sensor 140 and the second Z-axis hall sensor 240 are mainly used for sensing the positions of the first lens 130 and the second lens 230 in the corresponding Z-axis directions thereof, and feeding corresponding electric signals back to the corresponding processors, and the processors control the corresponding first coil stator and the corresponding second coil stator to control the first magnet mover 120 and the second magnet mover to move in the corresponding Z-axis directions thereof, so as to implement optical zooming. The closed-loop motor is accurately controlled and quickly reflected. In other embodiments, the first motor and the second motor may be open-loop motors. The first Z-axis hall sensor 140 is positioned between the first coil stator and the first magnet mover 120, and the second Z-axis hall sensor 240 is positioned between the second coil stator and the second magnet mover.
In this embodiment, the first magnet mover 120 is provided with four first permanent magnets 121, and the four first permanent magnets 121 are located on the same plane and are respectively disposed at four inner corners of the first rectangular cavity. That is, the four first permanent magnets 121 are respectively disposed at an included angle between the first a side wall 111 and the first B side wall 112, an included angle between the first B side wall 112 and the first C side wall 113, an included angle between the first C side wall 113 and the first D side wall 114, and an included angle between the first D side wall 114 and the first a side wall 111 of the first magnet mover 120, and the four first permanent magnets 121 are uniformly disposed, so that the stress of the first magnet mover 120 can be conveniently controlled, for example, when the first magnet mover is controlled to move along the axis (Z axis) of the first rectangular cavity, the stress is relatively uniform.
Referring to fig. 2, in an embodiment, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second B sidewall 212 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first B-side wall 112 in the circumferential direction, or at a middle position of the first C-side wall 113 in the circumferential direction. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first B-side wall 112 along the circumferential direction or at the middle position of the first C-side wall 113 along the circumferential direction, the distance from the second permanent magnet disposed at the middle position close to the second B-side wall 212 along the circumferential direction is far, and the second permanent magnet does not substantially generate magnetic interference with the first Z-axis hall sensor 140, so that the zoom accuracy of the first camera 100100 is improved, and the installation yield of the double zoom camera 1 is improved.
Referring to fig. 3, in an embodiment, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second C-side wall 213 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first B-side wall 112 in the circumferential direction, or at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first D-side wall 114 in the circumferential direction. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first B-side wall 112 along the circumferential direction, or at the middle position of the first C-side wall 113 along the circumferential direction, or at the middle position of the first D-side wall 114 along the circumferential direction, the distance from the second permanent magnet disposed at the middle position close to the second C-side wall 213 along the circumferential direction is far, and the second permanent magnet basically does not generate magnetic interference to the first Z-axis hall sensor 140, so that the zooming accuracy of the first camera 100 is improved, and the installation yield of the double-zoom camera 1 is improved. In other embodiments, when the first Z-axis hall sensor 140 is disposed at the middle position of the first a-side wall 111 along the circumferential direction, the first Z-axis hall sensor is still spaced from the second permanent magnet by at least the distance of the second lens 230, and the second permanent magnet still does not substantially generate magnetic interference with the first Z-axis hall sensor 140, so that the zoom accuracy of the first camera 100 is improved, and the installation yield of the dual zoom camera 1 is improved.
Referring to fig. 4, in an embodiment, the second permanent magnet includes one, and the second permanent magnet is disposed near a middle position of the second D-side wall 214 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first D-side wall 114 in the circumferential direction. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first C-side wall 113 along the circumferential direction or at the middle position of the first D-side wall 114 along the circumferential direction, the distance from the second permanent magnet disposed at the middle position close to the second D-side wall 214 along the circumferential direction is far, and the second permanent magnet does not substantially generate magnetic interference to the first Z-axis hall sensor 140, so that the zooming accuracy of the first camera 100100 is improved, and the installation yield of the double zoom camera 1 is improved.
Referring to fig. 5, in an embodiment, the second permanent magnets include two second permanent magnets, and the two second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second B side wall 212 in the circumferential direction and a middle position of the second C side wall 213 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first B-side wall 112 in the circumferential direction. In this embodiment, the two second permanent magnets are located on the same plane, and are stressed uniformly relatively. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first C-side wall 113 in the circumferential direction or at the middle position of the first B-side wall 112 in the circumferential direction, the two second permanent magnets are disposed in a diagonal line with the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is substantially avoided, and the accuracy of optical zooming of the first camera 100 is improved. In this embodiment, the second Z-axis hall sensor 240 is generally disposed at the middle position of the second C-side wall 213 in the circumferential direction, so as to reduce the interference of the first permanent magnet 121.
Referring to fig. 6, in an embodiment, the second permanent magnets include two second permanent magnets, and the two second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second B side wall 212 in the circumferential direction and a middle position of the second D side wall 214 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction. In this embodiment, the two second permanent magnets are located on the same plane, and are stressed uniformly relatively. The two second permanent magnets are far away from the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is basically avoided, and the precision of optical zooming of the first camera 100 is improved. In the present embodiment, the second Z-axis hall sensor 240 may be disposed at a generally middle position of the second B-side wall 212 in the circumferential direction, or at a lower middle position of the second D-side wall 214 in the circumferential direction.
Referring to fig. 7, in an embodiment, the second permanent magnets include two second permanent magnets, and the two second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second C-side wall 213 in the circumferential direction and a middle position of the second D-side wall 214 in the circumferential direction. The first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction, or at a middle position of the first D-side wall 114 in the circumferential direction. In this embodiment, the two second permanent magnets are located on the same plane, and are stressed uniformly relatively. No matter the first Z-axis hall sensor 140 is disposed at the middle position of the first C-side wall 113 in the circumferential direction or at the middle position of the first D-side wall 114 in the circumferential direction, the two second permanent magnets are disposed in a diagonal line with the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is substantially avoided, and the precision of optical zooming of the first camera 100 is improved. In this embodiment, the second Z-axis hall sensor 240 is generally disposed at the middle position of the second C-side wall 213 in the circumferential direction, so as to reduce the interference of the first permanent magnet 121.
Referring to fig. 8, in an embodiment, the number of the second permanent magnets includes three, and the three second permanent magnets are located on the same plane and are respectively disposed near a middle position of the second B side wall 212 in the circumferential direction, a middle position of the second C side wall 213 in the circumferential direction, and a middle position of the second D side wall 214 in the circumferential direction; the first Z-axis hall sensor 140 is disposed at a middle position of the first C-side wall 113 in the circumferential direction. In this embodiment, the three second permanent magnets are located on the same plane, and are stressed uniformly relatively. The three second permanent magnets are far away from the first Z-axis hall sensor 140, so that magnetic interference to the first Z-axis hall sensor 140 is basically avoided, and the precision of optical zooming of the first camera 100 is improved. In this embodiment, the second Z-axis hall sensor 240 is disposed at the middle position of the second C-side wall 213 in the circumferential direction, so as to reduce interference of the first permanent magnet 121.
According to the double-zoom camera 1, the first camera 100 and the second camera 200 are arranged adjacently, the first A side wall 111 of the first camera 100 is arranged in parallel with the second A side wall 211 of the second camera 200, and the second A side wall 211 is not provided with the permanent magnet, so that when the double-zoom camera is precisely installed, a small attraction force or repulsion force generated between the permanent magnets cannot be generated or is only generated between the first camera 100 and the second camera 200, when glue is not dried, the first camera 100 and the second camera 200 cannot be relatively displaced or the relative displacement can be within a specified error, and the installation yield of the double-zoom camera 1 is greatly improved; and two cameras can be arranged close to each other without limit, and the first camera 100 can be arranged in a rotating manner at will, so that the convenience of design is improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
The present invention also provides:
a1, a double zoom camera, comprising a first camera and a second camera,
the first camera comprises a first motor, the first motor comprises a first shell, a first coil stator and a first magnet rotor, and the first coil stator and the first magnet rotor are arranged in the first shell; the first shell comprises a first top end, a first bottom end, a first side wall A, a first side wall B, a first side wall C and a first side wall D, the first side wall A, the first side wall B, the first side wall C and the first side wall D are sequentially connected in a clockwise mode to form a first rectangular cavity, and the first top end and the first bottom end are respectively arranged at two ends of the first rectangular cavity; the first coil stator is arranged at the first bottom end of the first shell, and the first magnet rotor is arranged on one side, facing the first top end, of the first coil stator;
the second camera comprises a second motor, the second motor comprises a second shell, and a second coil stator and a second magnet rotor which are arranged in the second shell; the second shell comprises a second top end, a second bottom end, a second side wall A, a second side wall B, a second side wall C and a second side wall D, the second side wall A, the second side wall B, the second side wall C and the second side wall D are sequentially connected in a clockwise mode to form a second rectangular cavity, and the second top end and the second bottom end are respectively arranged at two ends of the second rectangular cavity; the second coil stator is arranged at the second bottom end of the second shell, and the second magnet rotor is arranged on one side, facing the second top end, of the second coil stator;
the first A side wall and the second A side wall are adjacent and arranged in parallel; and a second permanent magnet on the second magnet rotor is arranged far away from the second A side wall.
A2, the binary zoom camera of A1, the first and second motors both being closed-loop motors;
a first Z-axis Hall sensor corresponding to a first permanent magnet on the first magnet mover is arranged on the side wall of the first rectangular cavity;
and a second Z-axis Hall sensor corresponding to the second permanent magnet is arranged on the side wall of the second rectangular cavity.
A3, according to the double zoom camera head of A2, four first permanent magnets are arranged on the first magnet rotor, are positioned on the same plane and are respectively arranged at four inner edges of the first rectangular cavity.
A4, the binary zoom camera according to A3, wherein the second permanent magnet includes one disposed near a middle position of the second B side wall in the circumferential direction.
A5, the binary zoom camera according to A4, wherein the first Z-axis Hall sensor is disposed at a middle position of the first B-side wall in the circumferential direction, or at a middle position of the first C-side wall in the circumferential direction.
A6, the binary zoom camera according to A3, wherein the second permanent magnet includes one disposed near a middle position of the second C-side wall in the circumferential direction.
A7, the binary zoom camera according to A6, wherein the first Z-axis Hall sensor is arranged at the middle position of the first B side wall along the circumferential direction, or at the middle position of the first C side wall along the circumferential direction, or at the middle position of the first D side wall along the circumferential direction.
A8, the binary zoom camera according to A6, wherein the first Z-axis Hall sensor is arranged at the middle position of the first A side wall along the circumferential direction.
A9, the binary zoom camera according to A3, wherein the second permanent magnet includes one disposed near a middle position of the second D-side wall in the circumferential direction.
A10, the binary zoom camera according to A9, wherein the first Z-axis Hall sensor is arranged at the middle position of the first C-side wall along the circumferential direction, or at the middle position of the first D-side wall along the circumferential direction.
A11, according to the double zoom camera head of A3, the second permanent magnet includes two, two the second permanent magnet is located the coplanar, and sets up respectively and is being close to the second B lateral wall along the intermediate position of circumferential direction with the second C lateral wall along the intermediate position of circumferential direction.
A12, the binary zoom camera according to A11, wherein the first Z-axis Hall sensor is arranged at the middle position of the first C side wall along the circumferential direction, or at the middle position of the first B side wall along the circumferential direction.
A13, according to the double zoom camera head of A3, the second permanent magnet includes two, two the second permanent magnet is located the coplanar, and sets up respectively and is being close to the second B lateral wall along the intermediate position of circumferential direction with the second D lateral wall along the intermediate position of circumferential direction.
A14, the binary zoom camera according to A13, wherein the first Z-axis Hall sensor is arranged at the middle position of the first C-side wall along the circumferential direction.
A15, according to the double zoom camera head of A3, the second permanent magnet includes two, two the second permanent magnet is located the coplanar, and sets up respectively and is being close to the second C lateral wall along the intermediate position of circumferential direction with the second D lateral wall along the intermediate position of circumferential direction.
A16, the binary zoom camera according to A15, wherein the first Z-axis Hall sensor is arranged at the middle position of the first C-side wall along the circumferential direction, or at the middle position of the first D-side wall along the circumferential direction.
A17, according to A3 the double zoom camera, the second permanent magnet includes three, three the second permanent magnet is located the coplanar, and sets up respectively and is being close to second B lateral wall along the intermediate position of circumferential direction second C lateral wall along the intermediate position of circumferential direction with the second D lateral wall along the intermediate position of circumferential direction.
A18, the binary zoom camera according to A17, wherein the first Z-axis Hall sensor is arranged at the middle position of the first C-side wall along the circumferential direction.
A19, binary zoom camera according to A2,
the first Z-axis Hall sensor is positioned between the first coil stator and the first magnet rotor;
the second Z-axis hall sensor is located between the second coil stator and the second magnet mover.
B1, a mobile terminal, comprising a terminal body on which a binary zoom camera according to any one of A1-A19 is disposed.
Claims (6)
1. A double zoom camera comprises a first camera and a second camera, and is characterized in that,
the first camera comprises a first motor, the first motor comprises a first shell, a first coil stator and a first magnet rotor, and the first coil stator and the first magnet rotor are arranged in the first shell; the first shell comprises a first top end, a first bottom end, a first side wall A, a first side wall B, a first side wall C and a first side wall D, the first side wall A, the first side wall B, the first side wall C and the first side wall D are sequentially connected in a clockwise mode to form a first rectangular cavity, and the first top end and the first bottom end are respectively arranged at two ends of the first rectangular cavity; the first coil stator is arranged at the first bottom end of the first shell, and the first magnet rotor is arranged on one side, facing the first top end, of the first coil stator;
the second camera comprises a second motor, the second motor comprises a second shell, and a second coil stator and a second magnet rotor which are arranged in the second shell; the second shell comprises a second top end, a second bottom end, a second side wall A, a second side wall B, a second side wall C and a second side wall D, the second side wall A, the second side wall B, the second side wall C and the second side wall D are sequentially connected in a clockwise mode to form a second rectangular cavity, and the second top end and the second bottom end are respectively arranged at two ends of the second rectangular cavity; the second coil stator is arranged at the second bottom end of the second shell, and the second magnet rotor is arranged on one side, facing the second top end, of the second coil stator;
the first A side wall and the second A side wall are adjacent and arranged in parallel; a second permanent magnet on the second magnet rotor is arranged far away from the second A side wall;
a first Z-axis Hall sensor corresponding to a first permanent magnet on the first magnet mover is arranged on the side wall of the first rectangular cavity;
a second Z-axis Hall sensor corresponding to the second permanent magnet is arranged on the side wall of the second rectangular cavity;
the first Z-axis Hall sensor is arranged far away from the second permanent magnet; the second Z-axis Hall sensor is arranged close to the second permanent magnet;
the first motor and the second motor are both closed-loop motors;
the first magnet rotor is provided with four first permanent magnets which are positioned on the same plane and are respectively arranged at four inner edges of the first rectangular cavity;
the second permanent magnet comprises one, and the second permanent magnet is arranged at the middle position close to the second B side wall along the circumferential direction;
the first Z-axis Hall sensor is arranged in the middle of the first side wall B along the circumferential direction, or in the middle of the first side wall C along the circumferential direction.
2. The binary zoom camera head of claim 1, wherein the second permanent magnet comprises one, the second permanent magnet being disposed near a middle position of the second C-side wall in a circumferential direction.
3. The binary zoom camera according to claim 2, wherein the first Z-axis hall sensor is provided at a middle position of the first B-side wall in the circumferential direction, or at a middle position of the first C-side wall in the circumferential direction, or at a middle position of the first D-side wall in the circumferential direction.
4. The binary zoom camera head of claim 2, wherein the first Z-axis hall sensor is disposed at a middle position of the first a-side wall in a circumferential direction.
5. The binary zoom camera head of claim 1, wherein the second permanent magnet comprises one, the second permanent magnet being disposed near a middle position of the second D-side wall in a circumferential direction.
6. A mobile terminal, characterized by comprising a terminal body on which the binary zoom camera according to any one of claims 1-5 is provided.
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| US4236799A (en) * | 1977-06-01 | 1980-12-02 | Asahi Kogaku Kogyo Kabushiki Kaisha | Unwinding-mechanism releasing device for use in a camera |
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