CN108924299B - Electronic device - Google Patents
Electronic device Download PDFInfo
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- CN108924299B CN108924299B CN201810706851.6A CN201810706851A CN108924299B CN 108924299 B CN108924299 B CN 108924299B CN 201810706851 A CN201810706851 A CN 201810706851A CN 108924299 B CN108924299 B CN 108924299B
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- Prior art keywords
- camera module
- rack portion
- camera
- gear
- electronic device
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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
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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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
- H04N23/60—Control of cameras or camera modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Environmental & Geological Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Studio Devices (AREA)
Abstract
The invention provides an electronic device. The electronic equipment comprises a camera telescoping mechanism, a camera module and a controller, wherein the camera telescoping mechanism, the camera module and the controller are installed in the electronic equipment, the controller determines whether the electronic equipment is out of hand and whether the camera module is in a stretching state, and when the controller determines that the electronic equipment is out of hand and the camera module is in the stretching state, the controller controls the camera telescoping mechanism to operate, so that the camera module is retracted into the electronic equipment. According to the electronic equipment, when the electronic equipment is out of hand, the camera module in the extending state is controlled to retract, so that the camera module in the extending state can be prevented from being damaged after the electronic device is accidentally out of hand.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to an electronic device capable of performing hands-off detection to prevent damage to a camera module.
Background
With the continuous development of electronic equipment products and the improvement of user experience, a full-screen mobile phone becomes the mainstream of the current development. However, in the existing design scheme of the front camera, the camera module is fixed inside the mobile phone and is clamped between the support and the screen glass. This kind of leading camera can influence the aesthetic property of comprehensive screen ratio and screen appearance because the window of camera module to screen glass also can cause certain influence to formation of image.
One solution adopted in the prior art is to completely hide the front camera below the screen and extend the camera module when shooting is needed, thereby greatly improving the screen ratio and the appearance attractiveness.
However, the existing mobile phone camera telescoping scheme has the defects that the extension speed is too high, or the camera module cannot be manually retracted into the mobile phone, so that the service life of the mobile phone camera module is greatly reduced. In addition, the camera module can directly receive the impact after the cell-phone takes off the hand (for example, when taking place to drop), and the camera module is very easily damaged like this, greatly reduced the life of cell-phone camera module.
Disclosure of Invention
Therefore, an object of the present invention is to provide an electronic device, so as to solve the problem that the camera module is damaged after the electronic device is released.
According to an aspect of the present invention, there is provided an electronic apparatus, which may include a camera telescoping mechanism, a camera module, and a controller installed in the electronic apparatus, wherein the controller determines whether the electronic apparatus is out of hand and whether the camera module is in an extended state, and when the controller determines that the electronic apparatus is out of hand and the camera module is in the extended state, the controller controls the camera telescoping mechanism to operate so that the camera module is retracted into the electronic apparatus.
According to the electronic equipment, when the electronic equipment is out of hand, the camera module in the extending state is controlled to retract, so that the camera module in the extending state can be prevented from being damaged after the electronic device is accidentally out of hand. According to the electronic equipment, the camera module can be retracted through external force, so that the reliability of the electronic equipment is improved, and the service life of the camera module is prolonged. According to the electronic equipment, the camera module is arranged in the electronic equipment, so that the attractiveness can be enhanced, and the hiding of the view window can be realized.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
fig. 1 and 2 are front views showing a camera module of an electronic apparatus according to a first embodiment of the present invention in a retracted state and an extended state, respectively.
Fig. 3A and 3B are sectional views showing a camera retracting mechanism according to a first embodiment of the present invention.
Fig. 4A to 4D show an operation process of the camera module automatically extending out by the camera telescoping mechanism.
Fig. 5A to 5D show an operation process of the camera module automatically retracting by the camera retracting mechanism.
Fig. 6A to 6C show an operation process in which the camera retracting mechanism manually retracts the camera module.
Fig. 7 is a perspective view showing a camera retracting mechanism according to a second embodiment of the present invention.
Fig. 8 is a bottom view showing an upper cover of a mount of the camera retracting mechanism.
Fig. 9 is a plan view showing a bottom plate of a mount of the camera retracting mechanism.
Fig. 10 is a side view showing a bottom plate of the fixing frame.
Fig. 11A to 11D show an operation process in which the camera module is automatically extended by the camera retracting mechanism.
Fig. 12A to 12D show an operation process in which the camera module is automatically retracted by the camera retracting mechanism.
Detailed Description
Embodiments of the present invention will now be described in detail with reference to the drawings, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
As shown in fig. 1 and 2, an electronic apparatus according to an embodiment of the present invention may include a housing 10, and a camera expansion mechanism 30, a camera module 20, and a controller mounted in the housing 10. The controller may determine whether the electronic device is out of hand and whether the camera module 20 is in an extended state relative to the housing 10. After determining that the electronic device has been taken off the hand and the camera module 20 is in the extended state with respect to the housing 10, the controller may control the camera retracting mechanism 30 to operate to retract the camera module 20 into the housing 10, so as to prevent the camera module 20 from falling and being damaged after the electronic device is taken off the hand.
Here, the term "hands-off" is not limited to holding the electronic device off the hands, but includes other cases where the electronic device is off the support of the stand, and the like. The term "hands-free" encompasses any situation where an electronic device is free from a support and is unsupported.
As an example, the electronic device may sense whether the electronic device is out of hand through a gravity sensor. Specifically, a gravity sensor for sensing a gravitational acceleration of the electronic device may be mounted in the electronic device. When the controller determines that the gravity acceleration of the electronic equipment is greater than a preset value, it is determined that the electronic equipment is out of hand.
As another example, whether the electronic device is out of hand may also be sensed by a touch sensor. Here, the touch sensor may be a grip sensor. The holding pressure sensor can be used for sensing the holding pressure applied to the electronic equipment, and when the controller determines that the holding pressure of the electronic equipment is smaller than the preset value, the electronic equipment is determined to be out of hand. The touch sensor is not limited to the grip sensor, and may be a capacitive touch sensor or the like.
As another example, whether the electronic device is out of hand may also be sensed by a gyro sensor. The gyro sensor may be used to sense an angular acceleration of the electronic device, and when the controller determines that the angular acceleration of the electronic device is greater than a preset value, it is determined that the electronic device has been out of hand.
As another example, whether the electronic device is out of hand may also be sensed through a change in a picture of the electronic device. Specifically, when the electronic device is in the shooting mode, the controller may acquire a preview screen of the camera module 20 in real time, and when the controller determines that the switching rate of the preview screen is greater than a predetermined value, it determines that the electronic device has been out of hand.
Although the controller senses whether the electronic device is out of hand through the gravity sensor, the touch sensor, the gyro sensor, and the switching rate of the preview image has been described above, it is not limited thereto, and any device and any method capable of achieving out-of-hand detection may be applied to the electronic device.
While determining whether the electronic device is out of hand or after determining that the electronic device is out of hand, the controller determines whether the camera module 20 of the electronic device is in an extended state. For example, when the controller determines that the electronic apparatus is in the photographing mode, it determines that the camera module 20 is in the extended state. When it is determined that the electronic apparatus has been out of hand and the camera module 20 is in the extended state at the same time, the controller controls the camera retracting mechanism 30 to operate such that the camera module 20 is retracted into the housing 10, thereby preventing the camera module 20 from being damaged due to a falling collision.
Next, the camera telescoping mechanism 30 according to the first embodiment of the present invention will be described in detail with reference to fig. 1, 2, and 3A and 3B.
The camera telescoping mechanism 30 may include a camera attachment 32, a drive unit 40, and a transmission unit. The drive unit 40 provides a driving force to the transmission unit, which transmits the power to the camera attachment member 32. The camera connector 32 can be used to be fixedly connected with the camera module 20 and transmit power through the transmission unit to move in a straight line, so that the camera module 20 can be extended from or retracted into the electronic device. The transmission unit may include a driving gear, and the camera attachment 32 may have a rack gear, and the driving gear is engaged with the rack gear, thereby transmitting the driving force to the camera attachment 32.
In addition, the controller may determine whether the camera module 20 is in the extended state according to the operation state of the driving unit 40. For example, the driving unit 40 may be a driving motor, and the electronic device may be provided with a sensor for detecting a rotation angle of the driving motor. When the rotation angle of the forward rotation of the driving motor reaches a predetermined value, the controller may determine that the camera module 20 is in the extended state, and when the rotation angle of the reverse rotation of the driving motor reaches a predetermined value, the controller may determine that the camera module 20 is in the retracted state. Of course, the driving unit 40 is not limited to the driving motor, and the method of determining whether the camera module 20 is in the extended state is not limited thereto.
As an example, the transmission unit may include a worm 33 and a reduction gear set engaged with the worm 33, and the driving gear may be one gear of the reduction gear set. The camera attachment 32 may include a rack portion 32a and a connecting portion 32b coupled to the rack portion 32 a. The rack portion 32a may extend along the length direction of the housing 10 and engage with the drive gears in the reduction gear train. The connecting portion 32b can be used for fixedly connecting with the camera module 20. The worm 33 may be connected to the driving unit 40 and rotated by the driving of the driving unit 40. The worm 33 rotates the reduction gear set to drive the rack portion 32a engaged with the reduction gear set to move along the length direction of the housing 10, thereby extending or retracting the camera module 20.
As an example, the reduction gear sets may include a first reduction gear set 341, a second reduction gear set 342, a third reduction gear set 343, and a fourth reduction gear set 344. The first reduction gear set 341 may include a turbine 341a and a first gear 341 b. The worm gear 341a and the first gear 341b may be rotatably installed in the fixed frame 31 by the rotation shaft 341c, and the worm gear 341a may be engaged with the worm 33. The second reduction gear set 342 may include a second gear 342a and a third gear 342b (see fig. 7). The second gear 342a and the third gear 342b may be rotatably installed in the fixed frame 31 by a rotation shaft 342c, and the second gear 342a may be engaged with the first gear 341 b. The third reduction wheel group 343 may include a fourth gear 343 a. The fourth gear 343a may be rotatably installed in the fixed frame 31 by a rotation shaft 343b and may be engaged with the third gear 342 b. The fourth reduction gear set 344 may include a fifth gear 344a and a sixth gear 344 b. The fifth gear 344a and the sixth gear 344b may be rotatably installed in the fixed frame 31 by a rotation shaft 344 c. The fifth gear 344a may be engaged with the fourth gear 343a, and the sixth gear 344b may be engaged with the rack portion 32 a. The sixth gear 344b is the above-mentioned drive gear that meshes with the rack portion 32 a. Here, the worm gear 341a may be a helical gear capable of meshing with the worm 33, and the first to sixth gears 341b to 344b may be spur gears, but is not limited thereto.
Although the transmission unit of the camera telescoping mechanism of the present invention is described by taking an example in which the reduction gear set includes four gear sets as an example in the present invention, the structure of the transmission unit of the present invention is not limited thereto as long as the driving force of the driving unit 40 can be transmitted to the driving gear 344b so that the driving gear 344b drives the rack portion 32a to move linearly.
When the electronic apparatus enters the photographing mode or exits the photographing mode, the controller may control the driving motor to rotate, and the worm 33, the worm gear 341a, the first gear 341b, and the second, third, fourth, fifth, and driving gears 342a, 342b may be rotated by the driving of the driving motor. Therefore, the rack portion 32a engaged with the driving gear 344b is movable in accordance with the rotation of the driving gear 344b, so that the extension or retraction of the camera module 20 can be achieved.
The transmission unit of the camera retracting mechanism according to the present invention may be mounted on the fixed frame 31, and the fixed frame 31 may be a case composed of an upper cover 311 and a base plate (not shown). As shown in fig. 3A, in order to guide the linear motion of the rack portion 32a, a guide rail 311a may be formed on the upper cover 311 of the fixed frame 31, and a guide groove 32a1 extending in the longitudinal direction of the rack portion 32a may be formed on the rack portion 32 a. Guide rail 311a may be located within guide slot 32a1 to guide the movement of rack portion 32a along guide rail 311 a. Preferably, as shown in fig. 3B, a stopper projection 312a for restricting the outward movement of the rack portion 32a may be formed on a bottom plate of the fixing frame 31. Accordingly, the rack portion 32a may be formed with a stopper groove 32a2 extending partially along the length of the rack portion 32 a. When the rack portion 32a moves outward along the guide rail 311a, the stopper projection 312a slides with respect to the stopper groove 32a 2. When the rack portion 32a completes the operation of extending the camera module 20, the stopper projection 312a is positioned at the end of the stopper groove 32a2 to restrict the rack portion 32a from continuing to slide outward, thereby preventing the rack portion 32a from being detached from the holder 31.
Preferably, in the present embodiment, the driving gear 344b may be a half gear, i.e., an incomplete gear. That is, teeth that engage with the rack portion 32a may be formed on a portion of the outer circumference of the drive gear 344b (not the entire outer circumference), while teeth are not formed on another portion. The outer circumferential radius of the first portion where no teeth are formed may be smaller than the outer circumferential radius of the second portion where teeth are formed.
In order to facilitate understanding of the operation of the camera retracting mechanism 30 according to the first embodiment of the present invention, the operations of automatic extension, automatic retraction, and manual retraction of the camera module 20 will be described below with reference to fig. 4A to 4D, 5A to 5D, and 6A to 6C.
As shown in fig. 4A, when the electronic apparatus is not in the shooting mode, the camera module 20 is in the retracted state, and the rack portion 32a of the camera telescoping mechanism 30 is located in the fixed frame 31 without being extended. At this time, the first portion of the driving gear 344b may face the rack portion 32a and be separated from the rack portion 32a by a predetermined distance, or the driving gear 344b may be maintained in a meshed state with the rack portion 32a (to be described below).
When the photographing mode is entered, the controller may control the driving motor to rotate, and the driving gear 344b is rotated, for example, clockwise in fig. 4A by transmitting a driving force to the driving gear 344b through the worm 33, the worm gear 341a, the first gear 341b, the second gear 342a, the third gear 342b, the fourth gear 343a, and the fifth gear 344A.
As the driving gear 344B rotates clockwise, as shown in fig. 4B, the teeth on the second portion of the driving gear 344B may gradually engage with the rack portion 32a to drive the rack portion 32a to move along the guide rail 311 a.
As the driving gear 344b further rotates clockwise as shown in fig. 4C, the rack portion 32a stops moving after the rack portion 32a drives the camera module 20 to extend to a position. At this time, the camera retracting mechanism 30 completes the operation.
As shown in fig. 4D, it is possible to design such that when the camera retracting mechanism 30 completes the operation of extending the camera module 20, the driving gear 344b is just separated from the second portion of the rack portion 32a, and the driving gear 344b may idle at an angle such that the first portion of the driving gear 344b just faces the rack portion 32a and is separated from the rack portion 32a by a predetermined distance.
The retracting operation of the camera module 20 may be completely opposite to the extending operation of the camera module 20. As shown in fig. 5A, in the electronic apparatus in the shooting mode, the camera module 20 is in the extended state, and the first portion of the drive gear 344b faces the rack portion 32a and is separated from the rack portion 32a by a predetermined distance. When exiting the photographing mode, the controller may control the driving motor to operate, and transmit the driving force to the driving gear 344b through the transmission unit, so that the driving gear 344b rotates counterclockwise.
As the driving gear 344B rotates counterclockwise as shown in fig. 5B, the teeth on the second portion of the driving gear 344B may gradually engage with the rack portion 32a to drive the rack portion 32a to move along the guide rail 311 a.
As the drive gear 344b further rotates counterclockwise, the teeth on the second portion of the drive gear 344b sequentially engage the rack portion 32a, as shown in fig. 5C, until the rack portion 32a can stop moving after the camera module 20 is retracted to the proper position. At this time, the camera retracting mechanism 30 completes the operation.
As shown in fig. 5D, when the camera retracting mechanism 30 finishes the operation of retracting the camera module 20, the second portion of the driving gear 344b is just separated from the rack portion 32a, and the driving gear 344b may idle at an angle such that the first portion of the driving gear 344b just faces the rack portion 32a and is separated from the rack portion 32a by a predetermined distance.
However, when the camera module 20 is not yet retracted to the position after one rotation of the driving gear 344b, the driving gear 344b may be idled at an angle such that the second portion having the teeth is again engaged with the rack portion 32a, and the driving rack portion 32a continues to move inward. In this case, when the retracting operation is completed, the second portion having the teeth is in the engaged state with the rack portion 32 a.
That is, a first portion of the driving gear 344b may be configured to be opposite to the rack portion 32a when the camera module 20 is fully extended out of the housing 10, and a second portion of the driving gear 344b may be configured such that teeth on the second portion are engaged with the rack portion 32a during the process of extending or retracting the camera module 20 from or into the housing 10. The number of teeth on the second portion of the driving gear 344b may be designed according to the moving stroke of the rack portion 32 a.
Since the drive gear 344b is disengaged from the rack portion 32a when the camera module 20 is in the extended state, the camera telescoping mechanism 30 according to the present embodiment can also be retracted into the electronic apparatus by an external force.
As shown in fig. 6A, in the extended state of the camera module 20, the drive gear 344b is not engaged with the rack portion 32 a. As shown in fig. 6B and 6C, since the driving gear 344B is not engaged with the rack portion 32a, the camera module 20 can be retracted only by an external force without driving of the driving unit 40. That is, the rack portion 32a can be moved along the guide rail 311a only by an external force applied to the camera module 20 to retract the camera module 20 into the housing 10. With this configuration, the damage of the camera module 20 due to external impact (e.g., hitting an obstacle such as a wall or falling) in the shooting mode can be avoided.
The camera retracting mechanism 30 having the above-described structure can conveniently achieve manual retraction of the camera module 20, but the structure thereof is not limited thereto. Next, a specific structure of a camera retracting mechanism according to a second embodiment of the present invention will be described with reference to fig. 7.
As shown in fig. 7, in the second embodiment according to the present invention, the other structures may be substantially the same as those according to the first embodiment except that the structures of the driving gear 344b 'and the fixing bracket 31' are slightly different from those of the driving gear 344b and the fixing bracket 31 according to the first embodiment, and thus, a repetitive description will be omitted.
In this embodiment, the drive gear 344 b' may be an eccentric gear. That is, the radius of the eccentric gear becomes larger and smaller in the circumferential direction with respect to the rotation axis of the eccentric gear. The drive gear 344 b' may be configured to: when the camera module 20 is in the extended state, the drive gear 344b is not engaged with the rack portion 32 a; the driving gear 344 b' engages with the rack portion 32a during the process of extending or retracting the camera module 20 from or into the electronic apparatus. Further, the rotating shaft 344c of the driving gear 344b ' may move along the moving slot in the fixed frame 31 ' to be close to the rack portion 32a or to be distant from the rack portion 32a as the driving gear 344b ' is engaged with the rack portion 32 a.
The holder 31 ' in the second embodiment may also be a box body constituted by an upper cover 311 ' and a bottom plate 312 ', similarly to the holder 31 in the first embodiment. The upper cover 311 ' may also be formed with a guide rail 311 ' a for guiding the movement of the rack portion 32a, and the bottom plate 312 ' may also be formed with a restricting protrusion (not shown) for restricting the movement of the rack portion 32 a.
In addition, the camera retracting mechanism 30 'may further include an elastic member 344d for applying a force toward the rack portion 32a to the rotating shaft 344c of the driving gear 344 b'. As an example, the elastic member 344d may be a torsion spring, but is not limited thereto. The torsion spring 344d may be fitted over the rotating shaft 344c of the driving gear 344b ', and both ends of the torsion spring 344d may abut against the fixing structures of the fixing frame 31', respectively, to apply an elastic force to the rotating shaft 344c toward the rack portion 32 a.
As shown in fig. 8 and 9, in order to guide the movement of the rotation shaft 344c, movement grooves 311 ' b and 312 ' b may be formed at corresponding positions on the upper cover 311 ' and the bottom plate 312 ' of the fixed frame 31 '. The upper and lower ends of the rotation shaft 344c may be inserted into the movement grooves 311 'b and 312' b, respectively.
In addition, the fixing frame 31 ' may be further formed with abutting protrusions 311 ' c and 312 ' a, respectively, and both ends of the torsion spring 344d may abut on the abutting protrusions 311 ' c and 312 ' a, respectively. A torsion spring 344d may be located between the drive gear 344 b' and the fifth gear 344 a. In this case, in order to support both ends of the torsion spring 344d, abutting protrusions 311 'c and 312' a may be formed on the inner surface of the upper cover 311 'and the inner surface of the bottom plate 312', respectively, and extend a predetermined length toward the torsion spring 344 d. Fig. 7 shows a partial sectional view of the abutment protrusion 311 'c extending downward from the upper cover 311'. Fig. 10 shows a side view of the abutment projection 312 'a extending from the bottom plate 312' by a predetermined length.
In order to facilitate understanding of the operation of the camera retracting mechanism 30' according to the second embodiment of the present invention, the operation of the automatic extension and automatic retraction of the camera module 20 will be described below with reference to fig. 11A to 11D and fig. 12A to 12D.
As shown in fig. 11A, when the electronic apparatus is not in the shooting mode, the camera module 20 is in the retracted state, and the rack portion 32a of the camera telescoping mechanism 30 'is located in the fixed frame 31' without being extended. At this time, the drive gear 344b 'is not engaged with the rack portion 32a, that is, the smaller radius portion of the drive gear 344 b' faces the rack portion 32a and is separated from the rack portion 32a by a predetermined distance. In this state, the rotation shaft 344c is located in the movement grooves 311 'b and 312' b at a position close to the rack portion 32a, i.e., at the first ends of the movement grooves 311 'b and 312' b.
When the photographing mode is entered, the controller may control the driving unit 40 to operate, and transmit driving force to the driving gear 344b 'through the worm 33, the worm gear 341A, the first gear 341b, the second gear 342a, the third gear 342b, the fourth gear 343a, the fifth gear 344a, and the like, so that the driving gear 344 b' rotates, for example, clockwise in fig. 11A.
As the driving gear 344B ' rotates clockwise, as shown in fig. 11B, the teeth on the driving gear 344B ' may gradually engage with the rack portion 32a to drive the rack portion 32a to move along the guide rail 311 ' a. As the radius of the portion where the teeth engaged with the rack portion 32a are located becomes gradually larger, the drive gear 344b ' is pushed by the rack portion 32a against the elastic force of the torsion spring 344d, so that the rotation shaft 344c moves along the movement grooves 311 ' b and 312 ' b away from the rack portion 32 a.
As the driving gear 344b 'further rotates clockwise as shown in fig. 11C, the diameter change of the portion of the driving gear 344 b' that engages with the rack portion 32a is maximized, i.e., the teeth on the portion having the largest radius engage with the rack portion 32a, and at this time, the pushed rotation shaft 344C moves to the farthest position from the rack portion 32a in the movement grooves 311 'b and 312' b, i.e., at the second ends of the movement grooves 311 'b and 312' b.
As the driving gear 344b ' continues to rotate, the diameter of the portion where the teeth engaged with the rack portion 32a are located becomes gradually smaller, and the rotating shaft 344c starts to approach the rack portion 32a by the elastic force of the torsion spring 344D and moves from the second ends toward the first ends of the moving grooves 311 ' b and 312 ' b, as shown in fig. 11D. When the camera module 20 completes the extension motion, the smallest radius portion of the driving gear 344b 'just faces the rack portion 32a, and the rotating shaft 344c moves to the position closest to the rack portion 32a to the first ends of the moving grooves 311' b and 312 'b where the driving gear 344 b' is not engaged with the rack portion 32a and is separated from the rack portion 32a by a predetermined distance. When the rotation shaft 344c is located at the first ends of the moving slots 311 'b and 312' b, the distance between the rotation shaft 344c and the rack portion 32a is greater than the minimum radius of the driving gear 344b ', and thus, the driving gear 344 b' is in a disengaged state from the rack portion 32 a.
The retracting operation of the camera module 20 may be completely opposite to the extending operation of the camera module 20. As shown in fig. 12A, in the electronic apparatus in the photographing mode, the camera module 20 is in the extended state, the driving gear 344b 'is not engaged with the rack portion 32A, that is, the portion of the driving gear 344 b' having the smallest radius faces the rack portion 32A and is separated from the rack portion 32A by a predetermined distance, and the rotation shaft 344c is located at the first ends of the movement grooves 311 'b and 312' b.
When exiting the photographing mode, the controller may control the driving unit 40 to operate, and the controller may control the driving motor to operate, such that the driving force is transmitted to the driving gear 344b 'through the transmission unit, so that the driving gear 344 b' rotates counterclockwise.
As the driving gear 344B rotates counterclockwise as shown in fig. 12B, the teeth on the driving gear 344B 'may gradually engage with the rack portion 32a to drive the rack portion 32a to move along the guide rail 311' a. That is, the portion of the driving gear 344b ' where the teeth engaged with the rack portion 32a are formed is gradually varied in diameter to be larger, while the rotating shaft 344c is movable toward the second end along the rotating shaft moving grooves 311 ' b and 312 ' b, away from the rack portion 32 a.
As the driving gear 344b 'further rotates counterclockwise as shown in fig. 12C, the diameter of the portion where the teeth of the driving gear 344 b' engage with the rack portion 32a becomes smaller, and the rotating shaft 344C moves toward the first end in the moving grooves 311 'b and 312' b until the camera module 20 completes the retracting operation.
As shown in fig. 12D, the driving gear 344 b' can be designed to rotate once to complete the retraction process of the camera module 20. Therefore, in the present example, when the camera retracting mechanism 30 completes the operation of retracting the camera module 20, the drive gear 344 b' does not engage with the rack portion 32 a. At this time, the rotation shaft 344c may be returned to the first ends of the moving slots 311 'b and 312' b by the elastic force of the torsion spring 344 d. In this case, since the drive gear 344b 'is not meshed with the rack portion 32a, even if the electronic apparatus is subjected to vibration, the drive gear 344 b' is not easily collided with the rack portion 32 a. However, the present invention does not limit whether the driving gear 344 b' is engaged with the rack portion 32a in the retracted state of the camera module 20.
In addition, the camera retracting mechanism 30' according to the present embodiment may cause the camera module 20 to be retracted by an external force. Since the driving gear 344 b' is not engaged with the rack portion 32a in the extended state of the camera module 20, the camera module 20 can be retracted only by an external force without driving of the driving unit 40. That is, the rack portion 32a may be moved along the guide rail 311' a only by an external force applied to the camera module 20 so that the camera module 20 is retracted into the housing 10. Therefore, when the camera module 20 is struck by an external force, the camera module 20 can be retracted into the housing 10. With this configuration, the damage of the camera module 20 due to external impact (e.g., hitting an obstacle such as a wall or falling) in the shooting mode can be avoided.
According to the electronic equipment, when the electronic equipment is out of hand, the camera module in the extending state is controlled to retract, so that the camera module in the extending state can be prevented from being damaged after the electronic device is accidentally out of hand. According to the electronic equipment, the camera module can be retracted through external force, so that the reliability of the electronic equipment is improved, and the service life of the camera module is prolonged. According to the electronic equipment, the camera module is arranged in the electronic equipment, so that the attractiveness can be enhanced, and the hiding of the view window can be realized.
Although the embodiments of the present invention have been described in detail above, those skilled in the art may make various modifications and alterations to the embodiments of the present invention without departing from the spirit and scope of the present invention. It will be understood that modifications and variations may occur to those skilled in the art, which modifications and variations may be within the spirit and scope of the embodiments of the invention as defined by the appended claims.
Claims (11)
1. An electronic apparatus, characterized in that the electronic apparatus includes a camera retracting mechanism (30, 30') installed in the electronic apparatus, a camera module (20), and a controller,
wherein the controller determines whether the electronic device is out of hand and whether the camera module (20) is in an extended state,
when the controller determines that the electronic equipment is out of hand and the camera module (20) is in an extending state, the controller controls the camera telescoping mechanism (30) to operate so that the camera module (20) retracts into the electronic equipment,
wherein, the camera telescoping mechanism (30, 30 ') comprises a driving gear (344b, 344b ') and a camera connecting piece (32), the camera module (20) is fixedly connected with the camera connecting piece (32), the camera connecting piece (32) is provided with a rack part (32a), the driving gear (344b, 344b ') is meshed with the rack part (32a) to drive the camera connecting piece (32) to drive the camera module (20) to extend or retract into the electronic equipment,
wherein the drive gear (344b, 344b ') is disengaged from the rack portion (32a) when the camera module (20) is in the extended state, and the camera module (20) is retractable into the electronic apparatus by an external force in a state where the drive gear (344b, 344 b') is kept disengaged from the rack portion (32 a).
2. The electronic device according to claim 1, wherein the controller detects whether the electronic device is out of hand by at least one of a gravity sensor, a touch sensor, and a gyro sensor, or determines whether the electronic device is out of hand by a switching rate of the photographed preview screen.
3. The electronic device of claim 1, wherein an outer circumference of the drive gear (344b) includes a first portion and a second portion, an outer circumferential radius of the first portion being smaller than an outer circumferential radius of the second portion,
wherein the first portion has no teeth thereon and is configured to oppose the rack portion (32a) and maintain a predetermined gap when the camera module (20) is in the extended state,
the second portion has teeth formed thereon and is configured to engage with the rack portion (32a) during extension from or retraction into the electronic device of the camera module (20).
4. The electronic device of claim 1, wherein the drive gear (344 b') is an eccentric gear,
wherein the drive gear (344 b') is configured to: when the camera module (20) is in the extended state, the teeth on the portion of the drive gear (344 b') having the smallest radius face the rack portion (32a) with a predetermined gap maintained.
5. The electronic apparatus according to claim 4, wherein the camera retracting mechanism (30, 30 ') includes a fixed frame (31, 31'), the fixed frame (31 ') having a moving groove (311' b, 312 'b) formed thereon, both ends of a rotating shaft (344c) of the driving gear (344 b') being inserted into the moving groove (311 'b, 312' b),
wherein the rotation shaft (344c) is located at a first end of the moving groove (311 ' b, 312 ' b) near the rack portion (32a) when the camera module (20) is in the extended state, teeth on a portion of the driving gear (344b ') having a smallest radius are opposed to the rack portion (32a),
when the rotation shaft (344c) is located at the second end of the movement groove (311 ' b, 312 ' b), the teeth on the portion of the driving gear (344b ') having the largest radius are engaged with the rack portion (32 a).
6. The electronic apparatus according to claim 5, wherein said camera retracting mechanism (30') further comprises an elastic member (334d), said elastic member (334d) applying an elastic force to said rotating shaft (344c) toward said rack portion (32a),
when the rack portion (32a) applies a pushing force to the rotating shaft (344c) greater than an elastic force of the elastic member (334d), the rotating shaft (344c) moves in the moving groove (311 'b, 312' b) away from the rack portion (32 a).
7. The electronic device according to claim 6, wherein the elastic member (334d) is a torsion spring fitted over the rotation shaft (344c) of the driving gear (344b ') and both ends of the torsion spring abut against the fixed frame (31').
8. The electronic apparatus according to claim 7, wherein a guide rail (311a, 311 ' a) is formed in the mount (31, 31 '), the rack portion (32a) moving along the guide rail (311a, 311 ' a).
9. The electronic apparatus according to claim 7, wherein a stopper protrusion is further formed on the holder (31, 31 '), and a stopper groove is formed on the rack portion (32a) to prevent the rack portion (32a) from being detached from the holder (31, 31').
10. The electronic device according to claim 1, wherein the camera retracting mechanism (30, 30') includes a driving unit (40) for driving the camera module (20) to extend and retract, and the controller determines whether the camera module (20) is in the extended state according to whether the driving unit (40) reaches a predetermined operating state.
11. The electronic apparatus according to claim 10, wherein the driving unit (40) is a driving motor, and the controller determines whether the camera module (20) is in the extended state according to whether a forward rotation angle or a reverse rotation angle of the driving motor reaches a predetermined value.
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