CN111263048B - Transmission assembly, camera module and electronic equipment - Google Patents
Transmission assembly, camera module and electronic equipment Download PDFInfo
- Publication number
- CN111263048B CN111263048B CN202010136695.1A CN202010136695A CN111263048B CN 111263048 B CN111263048 B CN 111263048B CN 202010136695 A CN202010136695 A CN 202010136695A CN 111263048 B CN111263048 B CN 111263048B
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- Prior art keywords
- transmission nut
- transmission
- camera
- screw rod
- driving motor
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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
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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
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/663—Remote control of cameras or camera parts, e.g. by remote control devices for controlling interchangeable camera parts based on electronic image sensor signals
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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
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
Abstract
The application discloses transmission assembly, camera module and electronic equipment. Wherein, transmission assembly includes: activity portion, transmission portion and drive division. The movable part is used for being connected with the camera, and transmission portion is connected with the movable part, and the drive division includes driving motor, and driving motor is connected with transmission portion, and driving motor is used for driving transmission portion to make transmission portion can drive the movable part and carry out independent linear motion and independent rotary motion. Therefore, linear motion and rotary motion of the camera can be achieved through one driving motor in the technical scheme, pursuit of electronic equipment on thinning and light weight is met, and use experience of users is improved.
Description
Technical Field
The application relates to the technical field of transmission, especially, relate to a transmission assembly, camera module and electronic equipment.
Background
The camera assembly is an important component in the electronic equipment and mainly comprises a driving part and a camera, wherein the driving part is connected with the camera to provide driving force for the camera, so that the lifting or rotating motion of the camera is realized.
At present, the driving part can only move with a single degree of freedom, that is, only can singly realize the lifting motion or the rotating motion of the camera, and in order to realize the lifting motion and the rotating motion of the camera at the same time, the driving part needs to be equipped with at least two driving motors to realize the function of two degrees of freedom of the driving part. However, the provision of two driving motors for the driving portion inevitably results in an oversize structure of the driving portion, which in turn affects the demands of electronic equipment for slimness and miniaturization, and also seriously affects the user experience due to the increased quality.
Content of application
The application provides a transmission assembly, camera module and electronic equipment, can effectively solve the camera and can not realize elevating movement and rotary motion's problem simultaneously.
According to a first aspect of the present application, there is provided a transmission assembly for driving movement of a camera, comprising:
the movable part is used for being connected with the camera;
the transmission part is connected with the movable part;
the driving part comprises a driving motor, the driving motor is connected with the transmission part, and the driving motor is used for driving the transmission part, so that the transmission part can drive the movable part to perform independent linear motion and independent rotary motion.
Alternatively, the transmission section is configured such that when driven by the drive motor, the drive section drives the movable section to move linearly first and then drives the movable section to move rotationally.
Optionally, the movable part comprises:
the screw rod is configured to be driven by the driving motor to rotate;
the transmission nut is sleeved on the screw rod and meshed with the screw rod;
the limiting part comprises a first abutting wall extending along the length direction of the screw rod, and the first abutting wall is configured to abut against the transmission nut when the transmission nut is positioned in a linear stroke and is used for preventing the transmission nut from rotating around the screw rod along the first direction;
when the transmission nut is configured to be positioned in the linear stroke, after the screw rod rotates along the first direction, the transmission nut can linearly move along the second direction to the rotating stroke, and when the transmission nut is positioned in the rotating stroke, after the screw rod rotates along the first direction, the transmission nut rotates along the first direction.
Optionally, the limiting member further includes a second abutting wall configured to abut against the transmission nut when the transmission nut is located within the rotation stroke, so as to prevent the transmission nut from moving in the second direction and enable the transmission nut to rotate in the first direction.
Optionally, the limiting member defines an inner cavity extending along the length direction of the lead screw, and the lead screw and the transmission nut are both located in the inner cavity; the periphery wall of the transmission nut is also provided with a stopping part which is used for abutting against the first abutting wall when the transmission nut is positioned in the linear stroke and abutting against the second abutting wall when the transmission nut is positioned in the rotating stroke.
Optionally, the movable part further comprises:
the sliding bearing is sleeved on the screw rod;
one end of the sleeve is sleeved on the transmission nut, and the sliding bearing is positioned in the sleeve;
wherein, the sleeve and the transmission nut keep synchronous motion when the driving motor drives the screw rod.
Optionally, the drive nut is glued to the sleeve such that the drive nut is fixedly connected to the sleeve.
Optionally, the method further comprises:
the fixing ring is sleeved on the limiting piece, and the central shaft of the fixing ring is parallel to the central shaft of the screw rod;
the fixing ring is configured to abut against the stopping portion when the transmission nut is located in the linear stroke, so as to prevent the stopping portion from moving linearly along the second direction.
According to a second aspect of the present application, there is provided a camera module comprising:
the transmission assembly of any of the above;
the camera is connected with the sleeve;
when the camera module is configured to drive the screw rod by the driving motor, the transmission nut, the sleeve and the camera can synchronously perform linear motion and rotary motion.
According to a third aspect of the present application, there is provided an electronic device comprising:
a housing having a receiving chamber;
the camera module;
the camera module is located in the shell, the camera is located in the containing cavity, the electronic equipment is provided with a first working mode and a second working mode, when the electronic equipment is in the first working mode, the camera stretches out of the containing cavity along the second direction, and when the electronic equipment is in the second working mode, the camera rotates around the screw rod along the first direction, so that the camera is turned over for 180 degrees.
The application provides a transmission assembly, camera module and electronic equipment, this transmission assembly includes movable part, transmission portion and drive division. The movable part is used for being connected with the camera, and transmission portion is connected with the movable part, and the drive division includes driving motor, and driving motor is connected with transmission portion, and driving motor is used for driving transmission portion to make transmission portion can drive the movable part and carry out independent linear motion and independent rotary motion. Therefore, linear motion and rotary motion of the camera can be achieved through one driving motor in the technical scheme, pursuit of electronic equipment on thinning and light weight is met, and use experience of users is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of a transmission assembly according to a first embodiment of the present application;
FIG. 2 is a front view of the various components of the transmission assembly of FIG. 1, wherein the movable section, the transmission section, and the drive section are shown separately;
FIG. 3 is an exploded view of the movable section in the embodiment of the present application;
fig. 4 is a front view of a camera module according to a second embodiment of the present application;
fig. 5 is a front view of an electronic device in a third embodiment of the present application;
fig. 6 is a front view of the electronic device in fig. 5, which illustrates a relative position relationship between the camera and the housing when the electronic device is in the first operation mode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
At present, the driving part can only move with a single degree of freedom, that is, only can singly realize the lifting motion or the rotating motion of the camera, and in order to realize the lifting motion and the rotating motion of the camera at the same time, the driving part needs to be equipped with at least two driving motors to realize the function of two degrees of freedom of the driving part. However, the provision of two driving motors for the driving portion inevitably results in an oversize structure of the driving portion, which in turn affects the demands of electronic equipment for slimness and miniaturization, and also seriously affects the user experience due to the increased quality.
In view of the above technical problem, as shown in fig. 1-2, a transmission assembly 100 is provided in a first embodiment of the present application. The transmission assembly 100 includes a movable portion 110, a transmission portion 120, and a driving portion 130. The movable portion 110 is used for connecting with a camera, and it should be noted that the camera can be understood as a front camera or a rear camera of the mobile phone. The transmission portion 120 is connected to the movable portion 110, the driving portion 130 includes a driving motor 131, the driving motor 131 is connected to the transmission portion 120, and the driving motor 131 is used for driving the transmission portion 120, so that the transmission portion 120 can drive the movable portion 110 to perform independent linear motion and independent rotational motion.
In the above embodiment, according to the technical scheme, one driving motor 131 can complete the linear motion and the rotational motion of the camera, so that the functions of the camera expansion and the switching between the front camera and the rear camera are realized. In addition, the technical scheme also avoids the problem of overlarge structure caused by the fact that the driving part 130 simultaneously uses the two driving motors 131 to complete the functions of stretching and switching the camera, so that the technical scheme of the embodiment not only meets the pursuit of electronic equipment on thinning and light weight, but also improves the use experience of users.
In the process of switching the front camera to the rear camera, the transmission part 120 is configured such that when driven by the driving motor 131, the driving part 130 moves the movable part 110 linearly before driving and the movable part 110 rotates after driving. Therefore, the technical scheme of this embodiment only utilizes the upset of a camera to realize the function of two cameras in the correlation technique to have simple structure, low in production cost's characteristics are favorable to the bulk production of product.
In order to effectively implement the expansion and the inversion of the camera, as shown in fig. 3, in the present embodiment, the movable portion 110 includes a screw 111, a transmission nut 112, and a limiting member 113. The screw 111 is configured to rotate under the driving of the driving motor 131, and the transmission nut 112 is sleeved on the screw 111 and engaged with the screw 111. The limiting member 113 includes a first abutting wall 1131 extending along the length direction of the lead screw 111, and the first abutting wall 1131 is configured to abut against the transmission nut 112 when the transmission nut 112 is located in the linear stroke, so as to prevent the transmission nut 112 from rotating around the lead screw 111 along the first direction X. It should be noted that the linear stroke of the transmission nut 112 can be understood that the camera connected to the movable portion 110 can be extended by a predetermined length under the driving of the driving portion 130, so that the camera meets the shooting requirement, and the extended linear stroke of different electronic devices may be different.
When the screw 111 rotates along the first direction X, the transmission nut 112 can move linearly along the second direction Y into the rotation stroke, and when the transmission nut 112 is located in the rotation stroke, the screw 111 rotates along the first direction X, and then the transmission nut 112 rotates along the first direction X.
In this embodiment, the first abutment wall 1131 is configured to abut against the transmission nut 112 when the transmission nut 112 is located in the linear stroke, so as to prevent the transmission nut 112 from rotating around the lead screw 111 along the first direction X, and provide a direction guide for the linear motion of the transmission nut 112, so that the transmission nut 112 moves linearly along a direction perpendicular to the first direction X.
Similarly, the limiting member 113 further includes a second abutting wall 1132, and the second abutting wall 1132 is configured to abut against the transmission nut 112 when the transmission nut 112 is located in the rotation stroke, so as to prevent the transmission nut 112 from moving along the second direction Y and enable the transmission nut 112 to rotate along the first direction X.
Therefore, the second abutting wall 1132 is configured to abut against the transmission nut 112 when the transmission nut 112 is located in the rotation stroke, so as to prevent the transmission nut 112 from moving along the second direction Y, and provide a direction guide for the rotation movement of the transmission nut 112, so that the transmission nut 112 rotates along the first direction X, thereby realizing the conversion between the front and rear functions of the camera, and improving the flexibility of the electronic device and the user experience.
The smoothness of the movement of the drive nut 112 in the linear stroke and the rotational stroke is critical to the drive assembly 100. in this embodiment, the limiting member 113 defines an internal cavity 1133 extending along the length of the lead screw 111, and the lead screw 111 and the drive nut 112 are both located in the internal cavity 1133. The outer peripheral wall of the transmission nut 112 is further provided with a stopper 1121, and the stopper 1121 is used for abutting against the first abutting wall 1131 when the transmission nut 112 is located in the linear stroke, so that the stopper 1121 can roll on the first abutting wall 1131 during the rotation of the screw 111, thereby driving the transmission nut 112 to linearly move along the central axis direction of the screw 111. And when the transmission nut 112 is located in the rotation stroke, the transmission nut 112 abuts against the second abutting wall 1132, so that the stopping portion 1121 can roll on the second abutting wall 1132 in the rotation process of the lead screw 111, thereby driving the transmission nut 112 to rotate along the rotation direction of the lead screw 111.
In this embodiment, the stopper 1121 may have any shape, for example, the stopper 1121 has a rectangular shape or a cylindrical shape. When the cylindrical stopper 1121 rolls on the first abutting wall 1131 and the second abutting wall 1132, the motion smoothness of the transmission nut 112 in the linear stroke and the rotational stroke can be smoother, so that the stopper 1121 of the present embodiment can be cylindrical. Without being limited thereto, the stopper 1121 of the present embodiment having a cylindrical shape is cited merely for illustrative purposes.
In the above embodiment, the movable portion 110 may further include a sliding bearing 114 and a sleeve 115. The sliding bearing 114 is sleeved on the screw rod 111, one end of the sleeve 115 is sleeved on the transmission nut 112, and the sliding bearing 114 is located in the sleeve 115, so that the sleeve 115 and the transmission nut 112 keep synchronous motion when the driving motor 131 drives the screw rod 111.
The inner peripheral wall of the sliding bearing 114 and the screw 111 may be in interference fit, and the outer peripheral wall of the sliding bearing 114 and the inner peripheral wall of the sleeve 115 may be in clearance fit. It should be noted that the interference fit between the inner peripheral wall of the sliding bearing 114 and the screw 111 can ensure the reliability of the connection between the sliding bearing 114 and the screw 111, so as to improve the reliability of the transmission assembly 100. However, without being limited thereto, the sliding bearing 114 and the screw rod 111 may also be fixedly connected by other means, and the embodiment exemplifies that the sliding bearing 114 and the screw rod 111 may be in interference fit only for illustrative purposes.
Similarly, the outer peripheral wall of the sliding bearing 114 and the inner peripheral wall of the sleeve 115 can be in clearance fit, so that the motion smoothness in the linear stroke and the rotational stroke of the transmission nut 112 and the sleeve 115 can be improved, and the use reliability of the transmission assembly 100 can be ensured.
In some embodiments, the drive nut 112 is cemented to the sleeve 115 such that the drive nut 112 is fixedly coupled to the sleeve 115. For the specific reason, please refer to the above embodiments for description, and therefore, the description thereof is omitted.
The transmission nut 112 and the sleeve 115 are integrally connected through gluing, so that the action consistency of the sleeve 115 and the transmission nut 112 can be obviously improved, and the motion accuracy of the transmission nut 112 and the sleeve 115 in a linear stroke and a rotary stroke is ensured.
In the above embodiment, the transmission assembly 100 may further include a fixing ring 140. The fixing ring 140 is sleeved on the limiting member 113, and a central axis of the fixing ring 140 is parallel to a central axis of the screw 111. The fixing ring 140 is configured to abut against the stopper 1121 when the transmission nut 112 is located in the linear stroke, so as to prevent the stopper 1121 from moving linearly along the second direction Y, and when the fixing ring 140 is configured to be located in the rotational stroke, the fixing ring 140 can also provide a guiding effect for the rotational movement of the stopper 1121, so as to make the rotation of the transmission nut 112 smoother.
As shown in fig. 4, a camera module 10 is provided in the second embodiment of the present application. The camera module 10 includes the transmission assembly 100 and the camera 200 in the above embodiments, and the camera 200 is connected to the sleeve 115. When the driving motor 131 drives the lead screw 111, the driving nut 112, the sleeve 115 and the camera 200 can synchronously perform linear motion and rotational motion in the camera module 10.
In this embodiment, the camera module 10 has a first operating state and a second operating state. When the camera module 10 is in the first working state, the transmission nut 112 is configured to be located in the linear stroke, and the driving motor 131 drives the lead screw 111 to rotate along the first direction X, so that the transmission nut 112 can move linearly along the second direction Y and abut against the fixing ring 140. When the camera module 10 is in the second working state, the transmission nut 112 is configured to be located in the linear stroke first and then in the rotational stroke, and the driving motor 131 drives the lead screw 111 to rotate along the first direction X, so that the transmission nut 112 can move linearly along the second direction Y to abut against the fixing ring 140, and then rotate continuously until rotating 180 degrees around the lead screw 111, so that the camera 200 is turned 180 degrees.
The third embodiment of the present application provides an electronic device, as shown in fig. 5 to 6, which includes a housing 300 and the camera module 10 described above. The housing 300 has a receiving chamber. The camera module 10 is located in the housing 300, the camera 200 is located in the accommodating chamber, and the electronic device has a first working mode and a second working mode, and when the electronic device is in the first working mode, the camera 200 extends out of the accommodating chamber along the second direction Y, so that the front camera of the electronic device extends out of the housing 300. When the electronic device is in the second working mode, the camera 200 rotates around the screw 111 along the first direction X, so that the camera 200 is turned over by 180 degrees, thereby realizing the conversion from the front to the rear.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the above terms will be understood by those skilled in the art according to the specific situation.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
1. A drive assembly for driving movement of a camera, the drive assembly comprising:
the movable part is used for being connected with the camera;
the transmission part is connected with the movable part;
the driving part comprises a driving motor, the driving motor is connected with the transmission part, and the driving motor is used for driving the transmission part so that the transmission part can drive the movable part to perform independent linear motion and independent rotary motion;
the movable portion includes:
the screw rod is configured to be driven to rotate by the driving motor;
the transmission nut is sleeved on the screw rod and meshed with the screw rod;
the limiting part comprises a first abutting wall extending along the length direction of the screw rod, and the first abutting wall is configured to abut against the transmission nut when the transmission nut is located in a linear stroke and is used for preventing the transmission nut from rotating around the screw rod along a first direction;
the limiting member further comprises a second abutting wall configured to abut against the transmission nut when the transmission nut is located in the rotation stroke, so as to prevent the transmission nut from moving in the second direction and enable the transmission nut to rotate in the first direction;
when the transmission nut is configured to be located in the linear stroke, after the screw rod rotates along the first direction, the transmission nut can linearly move along the second direction to a rotating stroke, and when the transmission nut is located in the rotating stroke, after the screw rod rotates along the first direction, the transmission nut rotates along the first direction.
2. The drive assembly of claim 1,
the transmission part is configured such that when driven by the driving motor, the driving part drives the movable part to move linearly and then drives the movable part to move rotationally.
3. The drive assembly of claim 1,
the limiting piece defines an inner cavity extending along the length direction of the screw rod, and the screw rod and the transmission nut are both positioned in the inner cavity;
the periphery wall of the transmission nut is further provided with a stopping part, and the stopping part is used for abutting against the first abutting wall when the transmission nut is positioned in the linear stroke, and abutting against the second abutting wall when the transmission nut is positioned in the rotary stroke.
4. The transmission assembly of claim 1, wherein the movable portion further comprises:
the sliding bearing is sleeved on the screw rod;
one end of the sleeve is sleeved on the transmission nut, and the sliding bearing is positioned in the sleeve;
when the driving motor drives the screw rod, the sleeve and the transmission nut keep synchronous motion.
5. The drive assembly of claim 4,
the transmission nut is glued to the sleeve, so that the transmission nut is fixedly connected with the sleeve.
6. The drive assembly of claim 3, further comprising:
the fixing ring is sleeved on the limiting piece, and the central axis of the fixing ring is parallel to the central axis of the screw rod;
wherein the fixing ring is configured to abut against the stopping portion when the transmission nut is located in the linear stroke, so as to prevent the stopping portion from moving linearly along the second direction.
7. The utility model provides a camera module which characterized in that includes:
the transmission assembly of any one of claims 1-6;
the camera is connected with the sleeve;
when the camera module is configured to drive the screw rod by the driving motor, the transmission nut, the sleeve and the camera can synchronously perform linear motion and rotary motion.
8. An electronic device, comprising:
a housing having a receiving chamber;
the camera module of claim 7;
the camera module is located in the shell, the camera is located in the containing cavity, the electronic equipment is provided with a first working mode and a second working mode, when the electronic equipment is located in the first working mode, the camera extends out of the containing cavity along the second direction, and when the electronic equipment is located in the second working mode, the camera rotates around the screw rod along the first direction, so that the camera is turned over for 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136695.1A CN111263048B (en) | 2020-03-02 | 2020-03-02 | Transmission assembly, camera module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136695.1A CN111263048B (en) | 2020-03-02 | 2020-03-02 | Transmission assembly, camera module and electronic equipment |
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| Publication Number | Publication Date |
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| CN111263048A CN111263048A (en) | 2020-06-09 |
| CN111263048B true CN111263048B (en) | 2021-08-20 |
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| CN202010136695.1A Active CN111263048B (en) | 2020-03-02 | 2020-03-02 | Transmission assembly, camera module and electronic equipment |
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| CN212992371U (en) * | 2020-07-08 | 2021-04-16 | 瑞声科技(新加坡)有限公司 | Electronic device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166667A (en) * | 2018-02-13 | 2019-08-23 | 广东欧珀移动通信有限公司 | CCD camera assembly and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200817749A (en) * | 2006-10-13 | 2008-04-16 | Altek Corp | Lens structure |
| CN209787206U (en) * | 2018-11-30 | 2019-12-13 | Oppo广东移动通信有限公司 | Transmission mechanism, driving mechanism assembly, mounting driving assembly and mobile terminal |
| CN209057292U (en) * | 2018-12-13 | 2019-07-02 | 北京小米移动软件有限公司 | Camera module and electronic equipment |
| CN209627515U (en) * | 2019-03-20 | 2019-11-12 | 四川安和精密电子电器股份有限公司 | A kind of new structure and mobile terminal for preventing lifting mould group bearing from falling off |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166667A (en) * | 2018-02-13 | 2019-08-23 | 广东欧珀移动通信有限公司 | CCD camera assembly and electronic equipment |
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