WO2023246679A1

WO2023246679A1 - Camera module, clutch device, and electronic apparatus

Info

Publication number: WO2023246679A1
Application number: PCT/CN2023/100976
Authority: WO
Inventors: 刘建华; 阙海波; 张军; 陈广龙
Original assignee: 维沃移动通信有限公司
Priority date: 2022-06-21
Filing date: 2023-06-19
Publication date: 2023-12-28
Also published as: CN117319770A

Abstract

Disclosed in the present application are a camera module, a clutch device, and an electronic apparatus. The camera module comprises a telescopic lens, a driving part and a clutch device. The clutch device comprises a driving assembly, a first gear, a rotating shaft, a pressing assembly and a ball, wherein the driving assembly is arranged at a first end of the rotating shaft, the driving assembly drives the rotating shaft to rotate, a through hole is provided at the axis of the first gear, and the rotating shaft penetrates the through hole; and the pressing assembly sleeves a second end of the rotating shaft, the ball is arranged between the pressing assembly and the first gear, the pressing assembly abuts against the ball, and the first gear is provided with a first accommodating groove. The clutch device has a linked state and a separated state, wherein when the clutch device is in the linked state, the ball is located in the first accommodating groove, and when the rotating shaft rotates, the pressing assembly drives, by means of the ball, the first gear to rotate; and when the clutch device is in the separated state, the ball is disengaged from the first accommodating groove, and the rotating shaft rotates relative to the first gear. The first gear is connected to the telescopic lens, and the driving part is connected to the driving assembly.

Description

Camera modules, clutches and electronic equipment

Cross-references to related applications

This application claims priority to the Chinese patent application with application number 202210709264.9 and the invention name "Camera Module, Clutch Device and Electronic Equipment" submitted on June 21, 2022, which is fully incorporated into this application by reference.

Technical field

This application belongs to the field of electronic technology, and specifically relates to a camera module, a clutch device and electronic equipment.

Background technique

Photography and imaging functions have become important functions of electronic devices such as smartphones. As camera hardware iterations become faster and faster, the camera's shooting capabilities have been greatly improved, and it has the capabilities of professional cameras, reducing the cost of professional cameras. usage frequency.

In the existing technology, since the lens of a professional camera can be retracted to focus, a camera structure with a telephoto (telescopic lens) function has been developed for use in mobile phones. Referring to the existing telescopic structure of professional cameras, the lifting sleeve of the existing telescopic camera will have a chute in advance, and a sliding head (Pin foot) is designed correspondingly on the adjacent sleeve. It slides in the groove, thereby driving the sleeve to lift.

However, because mobile phones are people's daily necessities and are often held in the hand, the probability of falling is much greater than that of cameras. When the camera is extended and falls, the existing telescopic cameras have poor protection capabilities. , easy to cause damage.

Contents of the invention

This application aims to provide a camera module, clutch device and electronic equipment that can solve the problem of It is easy to cause damage when the head is extended and dropped.

In order to solve the above technical problems, this application is implemented as follows:

In the first aspect, the embodiment of the present application proposes a camera module including: a telescopic lens, a driving member and a clutch device;

The clutch device includes a driving component, a first gear, a rotating shaft, a pressing component and a ball;

The driving component is disposed at the first end of the rotating shaft, and the driving component drives the rotating shaft to rotate. A through hole is provided at the axis center of the first gear, and the rotating shaft is inserted into the through hole. ;

The pressing component is sleeved on the second end of the rotating shaft, the ball is disposed between the pressing component and the first gear, the pressing component is in contact with the ball, and the third ball is disposed between the pressing component and the first gear. A first receiving groove is provided on a gear;

The clutch device has a linkage state and a separation state. When the clutch device is in the linkage state, the ball is located in the first receiving groove, and when the rotating shaft rotates, the pressing assembly The first gear is driven to rotate by the ball;

When the clutch device is in a disengaged state, the ball breaks away from the first receiving groove, and the rotating shaft rotates relative to the first gear;

The first gear is connected to the telescopic lens, and the driving member is connected to the driving assembly.

In the second aspect, embodiments of the present application provide a clutch device, including: a driving component, a first gear, a rotating shaft, a pressing component and a ball;

When the clutch device is in a disengaged state, the ball breaks away from the first receiving groove, The rotating shaft rotates relative to the first gear.

In a second aspect, an embodiment of the present application provides an electronic device, including a housing and the above-mentioned camera module, and the camera module is disposed in the housing.

In the embodiment of the present application, when the driving member is in the powered-on state, the driving member drives the driving assembly to rotate, and the driving assembly drives the rotating shaft to rotate. The pressing assembly drives the first gear to rotate through the balls. That is to say, the first gear is driven by the ball. The gear can rotate with the rotation of the rotating shaft. Driven by the first gear, the sleeve can rotate accordingly, thereby realizing the extension or shortening of the telescopic lens; when the driving part is in a power-off state and the sleeve sends rotation , the sleeve can drive the first gear to rotate relative to the rotating shaft, which means that the driving component is in a stationary state at this time. A clutch device is provided between the sleeve and the driving part. The impact of the external force on the camera module will be converted into the kinetic energy of the first gear idling and released, so that the transmission mechanism in the telescopic lens is in a non-stressed state, which can solve the problem of the camera module being in trouble. In the extended state, the transmission fails due to external force, thus improving the reliability of the camera module.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is a schematic structural diagram of a camera module according to an embodiment of the present application;

Figure 2 is an exploded schematic diagram of a clutch device according to an embodiment of the present application;

Figure 3 is one of the cross-sectional views of the clutch device according to the embodiment of the present application;

Figure 4 is the second cross-sectional view of the clutch device according to the embodiment of the present application;

Figure 5 is a schematic structural diagram of a clutch device according to an embodiment of the present application;

Reference signs:
1. Clutch device; 11. First gear; 12. Rotating shaft; 13. Driving assembly; 131. Second gear;
132. Connecting parts; 14. Balls; 15. Pressing components; 151. Limiting plates; 152. Elastic components; 1521. Elastic parts; 1522. Pressure plates; 153. Cage; 2. Driving parts; 21. Driving motor; 22. Worm; 3. Sleeve; 4. Rack.

Detailed ways

Embodiments of the present application will be described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In the description of the present application, it should be understood that the features of the terms "first" and "second" may include one or more of the features, either explicitly or implicitly.

In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

Conventional telescopic lenses use a grooved flange structure to design the lens into multiple stages to achieve the telescopic function of the lens. Take a three-stage telescopic lens as an example:

When the camera is impacted, the primary sleeve moves vertically downward under the impact force. The flange on the primary sleeve cooperates with the oblique groove of the secondary sleeve to drive the secondary sleeve to rotate and move downward ( The third-level sleeve remains fixed, and the oblique groove on the third-level sleeve cooperates with the flange of the second-level sleeve, constraining the second-level sleeve to only move downward);

When the secondary sleeve rotates and moves downward, it also drives the secondary driven sleeve to move downward (the third-level sleeve remains fixed, and the vertical groove on the third-level sleeve cooperates with the secondary driven sleeve to constrain it. The secondary driven sleeve can only move vertically);

The downward movement of the secondary sleeve eventually drives the active sleeve to rotate (the flange on the secondary sleeve Matches with the chute of the active sleeve);

The camera gear rack and the active sleeve are an integrated design. The power system will not operate when impacted, the active sleeve cannot rotate, and all sleeves cannot make any movement. At this time, all the flanges and grooves of the sleeve can only squeeze each other into shear force under the action of impact force, so the transmission structure of the sleeve is easily damaged and fails.

In order to solve the above problems, as shown in Figures 1, 2, 3, 4 and 5, the camera module according to the embodiment of the present application includes: a telescopic lens, a driving member 2 and a clutch device 1.

The clutch device 1 includes a driving component 13 , a first gear 11 , a rotating shaft 12 , a pressing component 15 and balls 14 .

The rotating shaft 12 has an opposite first end and a second end. The driving assembly 13 is disposed at the first end of the rotating shaft 12, and the driving assembly 13 drives the rotating shaft 12 to rotate. A through hole is provided at the axis center of the first gear 11 through which the rotating shaft 12 passes. It is disposed in the through hole, that is to say, the first gear 11 can rotate relative to the rotating shaft 12 .

The pressing component 15 is sleeved on the second end of the rotating shaft 12 . The ball 14 is disposed between the pressing component 15 and the first gear 11 . The pressing component 15 is in contact with the ball 14 . The first gear 11 is provided with a first receiving chamber. groove.

The clutch device 1 has a linkage state and a separation state. When the clutch device 1 is in the linkage state, the ball 14 is located in the first receiving groove, and when the rotating shaft 12 rotates, the pressing assembly 15 drives the first gear through the ball 14 11 turns.

When the clutch device 1 is in a disengaged state, the ball 14 breaks away from the first receiving groove, and the rotating shaft 12 rotates relative to the first gear 11 .

The first gear 11 is connected to the telescopic lens, and the driving member 2 is connected to the driving assembly 13 .

Wherein, the telescopic lens includes a sleeve 3, the driving member 2 is connected to the driving assembly 13, and the first gear 11 is connected to the sleeve 3. It should be particularly pointed out that the sleeve 3 is equivalent to the active sleeve, that is to say, a rack 4 is provided on the side of the sleeve 3. The rack 4 is an arc-shaped structural member, and the first gear 11 is meshed with the rack 4.

In the embodiment of the present application, when the driving part 2 is in the powered state, the driving part 2 drives the driving assembly 13 to rotate, and the driving assembly 13 drives the rotating shaft 12 to rotate, and the pressing assembly 15 passes through the ball 14 drives the first gear to rotate, that is to say, the first gear 11 can rotate with the rotation of the rotating shaft 12. Driven by the first gear 11, the sleeve 3 can rotate accordingly, thereby realizing the extension or expansion of the telescopic lens. Shorten; when the driving member 2 is in a power-off state and the sleeve 3 is rotating, the sleeve 3 can drive the first gear 11 to rotate relative to the rotating shaft 12, which means that the driving assembly 13 is in a stationary state at this time. A clutch device 1 is provided between the sleeve 3 and the driving member 2. The impact of the external force on the camera module will be converted into the idling kinetic energy of the first gear 11 and released, so that the transmission mechanism in the telescopic lens is in a non-stressed state, which can solve the problem. When the camera module is in the extended state, the transmission fails due to external force, thereby improving the reliability of the camera module.

In an optional embodiment, as shown in FIG. 2 , the pressing component 15 includes an elastic component 152 , a limiting plate 151 and a retainer 153 .

The limiting plate 151 is fixedly connected to the rotating shaft 12. The cage 153 is sleeved on the rotating shaft 12 and is movably connected with the rotating shaft 12. The elastic component 152 is provided between the limiting plate 151 and the cage 153. The cage 153 is located on the limiting plate 151. Toward the side of the first gear 11 , the elastic component 152 is used to make the cage 153 abut against the balls 14 .

It should be noted that the cage 153 can move along the axial direction of the rotating shaft 12, and the elastic component 152 has a certain telescopic ability, and its specific type is not specifically limited here.

In the embodiment of the present application, when the driving member 2 is in the powered state, the driving member 2 drives the driving assembly 13 to rotate, and the driving assembly 13 drives the rotating shaft 12 to rotate. At this time, under the action of the elastic assembly 152, the cage 153 It can abut with the first gear 11 so that the ball 14 is located in the first receiving groove. Therefore, the first gear 11 can rotate with the rotation of the rotating shaft 12. Driven by the first gear 11, the sleeve 3 can produce corresponding movements. Rotate, thereby realizing the extension or shortening of the telescopic lens; when the driving member 2 is in a power-off state and the sleeve 3 sends rotation, the first gear 11 squeezes the ball 14, the cage 153 moves away from the first gear 11, and the ball 14 Disengaged from the first receiving groove, the sleeve 3 can drive the first gear 11 to rotate relative to the rotating shaft.

In an optional embodiment, the cage 153 is provided with a second receiving groove, the notch of the second receiving groove faces the first gear 11 , and at least part of the balls 14 can be received in the second receiving groove.

It should be noted that the first receiving groove is a spherical groove, and the second receiving groove is adapted to the ball 14. The second receiving groove may be a through groove.

In the embodiment of the present application, when the driving member 2 is in the powered state, the driving member 2 drives the driving assembly 13 to rotate, and the driving assembly 13 drives the rotating shaft 12 to rotate. At this time, under the action of the elastic assembly 152, the cage 153 It can abut with the first gear 11, so that part of the ball 14 is located in the second accommodation groove, and the other part is located in the first accommodation groove. Therefore, the first gear 11 can rotate with the rotation of the rotating shaft 12. Driven by the first gear 11 down, the sleeve 3 can rotate accordingly, thereby realizing the extension or shortening of the telescopic lens; when the driving member 2 is in a power-off state and the sleeve 3 rotates, the first gear 11 squeezes the ball 14, and the ball 14 After being separated from the first receiving groove, the sleeve 3 can drive the first gear 11 to rotate relative to the rotating shaft.

In an optional embodiment, the number of second receiving grooves is at least two, and at least one second receiving groove is opposite to the first receiving groove.

It should be noted that, in order to achieve the stability of the synchronous rotation of the cage 153 and the first gear 11, and the stability of the ball 14 when the first gear 11 rotates relative to the rotating shaft 12, at least one second accommodation groove is in contact with the first accommodation groove. The slots are opposite.

It should be particularly pointed out that in order to achieve the first gear 11 squeezing the ball 14, the ball 14 can be separated from the first accommodation groove, and the volume of the first accommodation groove is less than or equal to the target volume;

The target volume is one-half of the volume of the ball 14 .

It should be noted that the ability of the balls 14 to detach from the first receiving groove is related to the number of the balls 14 , the diameter of the balls 14 , the stiffness of the elastic component 152 , the preload of the elastic component 152 and the angle of the spherical groove. Among them, the spherical groove angle can be quantified by the volume of the spherical groove.

In an optional embodiment, as shown in FIGS. 2 , 3 , 4 and 5 , the elastic component 152 includes an elastic member 1521 and a pressure plate 1522 . The pressure plate 1522 is sleeved on the rotating shaft 12 , and the pressure plate 1522 is disposed on the elastic member 1521 On the side facing the retainer 153, the pressure plate 1522 is in contact with the retainer 153.

In the embodiment of the present application, when the driving member 2 is in the powered state, the driving member 2 drives the driving assembly 13 to rotate, and the driving assembly 13 drives the rotating shaft 12 to rotate. At this time, the ball 14 is partially located under the action of the pressure plate 1522 The other part of the second accommodation groove is located in the first accommodation groove, so the first gear 11 can rotate with the rotation of the rotating shaft 12. Driven by the first gear 11, the sleeve 3 can Corresponding rotation occurs, thereby achieving the elongation or shortening of the telescopic lens; when the driving member 2 is in a power-off state and the sleeve 3 rotates, the first gear 11 squeezes the ball 14, and the cage 153 can move away from the first gear 11. The ball 14 is separated from the first receiving groove, and the sleeve 3 can drive the first gear 11 to rotate relative to the rotating shaft.

In an optional embodiment, the elastic member 1521 is spirally coiled around the rotating shaft 12 , one end of the elastic member 1521 is connected to the limiting plate 151 , and the other end of the elastic member 1521 is connected to the retainer 153 .

It should be noted that the elastic member 1521 may be a coil spring. In this case, the elastic member 1521 is spirally coiled around the circumference of the rotating shaft 12 and extends from one end of the rotating shaft 12 to the other end.

In an optional embodiment, multiple elastic members 1521 are arranged around the rotating shaft 12 , one end of the elastic member 1521 is connected to the limiting plate 151 , and the other end of the elastic member 1521 is connected to the retainer 153 . That is to say, the elastic member 1521 has no contact with the rotating shaft 12 .

The elastic member 1521 may be a spring or an elastic silicone member, which is not specifically limited here.

In an optional embodiment, as shown in FIGS. 3 and 4 , the second end of the rotating shaft 12 has a limiting structure, and the limiting structure is connected to the pressing assembly 15 for limiting.

It should be noted that under the action of the limiting structure, the limiting plate 151 is fixed on the rotating shaft 12 , and the pressure plate 1522 and the cage 153 can only move relative to the rotating shaft 12 along the axial direction of the rotating shaft 12 , and cannot move relative to the rotating shaft 12 . Turn.

In an optional embodiment, as shown in FIGS. 3 and 4 , the rotating shaft 12 has a first part and a second part, the first end of the second part is connected to the first part, and the second end of the second part is connected to the driving assembly 13 Connection, the first part is a limiting structure, and the cross section of the first part is a non-circular shape.

It should be noted that the cross-section of the second part is a circular shape, and the cross-section of the first part is a non-circular shape, that is to say, the first part can have a variable cross-section structure, for example, the cross-section of the first part is an ellipse, a triangle, etc. , no specific limitation is made here. The diameter of the second part can be larger than the diameter of the first part, and the diameter of the second part can also be smaller than the diameter of the first part. The diameter of the first part and the diameter of the second part can be selected according to actual working conditions, and are not specifically limited here.

Among them, the limiting plate 151, the pressure plate 1522 and the cage 153 are all provided with mounting holes that match the first part.

In an optional embodiment, the rotating shaft 12 has a first part and a second part, the first end of the second part is connected to the first part, the second end of the second part is connected to the driving assembly 13, and the first part is a limiting structure, The orthographic projection of the first part on the plane of the first gear 11 is located within the orthographic projection of the second part on the plane of the first gear 11 .

Wherein, the cross-section of the first part is smaller than the cross-section of the second part.

It should be noted that the limiting plate 151 is fixed on the first part, and the pressure plate 1522 and the cage 153 can only move relative to the first part along its axial direction, and cannot rotate relative to the first part. The first gear 11 can rotate relative to the second part.

In an optional embodiment, as shown in FIGS. 2 , 3 and 4 , the driving assembly 13 includes a second gear 131 and a connecting piece 132 . The second gear 131 is provided at the second end of the rotating shaft 12 , and the second gear 131 is disposed at the second end of the rotating shaft 12 . 131 is sleeved on the rotating shaft 12. One end of the connecting member 132 is connected to the second gear 131 and the other end is connected to the rotating shaft 12. The driving member 2 meshes with the second gear 131 and drives the second gear 131 to rotate. The second gear 131 passes through the connecting member. 132 drives the rotating shaft 12 to rotate.

It should be noted that the second gear 131 has a through hole, the rotating shaft 12 is inserted through the through hole, one end of the connecting member 132 is connected to the inner wall of the through hole, and the other end is connected to the peripheral side of the rotating shaft 12 .

The driving member 2 includes a driving motor 21 and a worm 22 . The driving motor 21 is connected to the second gear 131 through the worm 22 .

In the embodiment of the present application, when the driving member 2 is in the powered state, the driving member 2 drives the second gear 131 to rotate, and the second gear 131 drives the rotating shaft 12 to rotate through the connecting member 132. At this time, the ball 14 is on the pressure plate. The lower part of 1522 is located in the second receiving groove, and the other part is located in the first receiving groove, so the first gear 11 can rotate with the rotation of the rotating shaft 12. Driven by the first gear 11, the sleeve 3 can produce corresponding movements. Rotate, thereby realizing the extension or shortening of the telescopic lens; when the driving member 2 is in a power-off state and the sleeve 3 sends rotation, the first gear 11 squeezes the ball 14, and at this time the cage 153 can move away from the first gear 11 , the ball 14 is separated from the first receiving groove, and the sleeve 3 can drive the first gear 11 to rotate relative to the rotating shaft.

In an optional embodiment, the connecting member 132 is a torsion spring, and the torsion spring is sleeved on the rotating shaft 12 .

It should be noted that the torsion spring is sleeved in the second part.

In the embodiment of the present application, when the driving member 2 is in the powered state, the driving member 2 drives the second gear 131 to rotate, and the second gear 131 drives the rotating shaft 12 to rotate through the torsion spring. At this time, the ball 14 is on the pressure plate 1522 The lower part is located in the second accommodating groove, and the other part is located in the first accommodating groove, so the first gear 11 can rotate with the rotation of the rotating shaft 12. Driven by the first gear 11, the sleeve 3 can rotate accordingly. , thereby realizing the extension or shortening of the telescopic lens; when the driving part 2 is in a power-off state and the sleeve 3 is rotating, part of the ball 14 is located in the second receiving groove under the action of the pressure plate 1522, and the other part is located in the first In the accommodating groove, the first gear 11 drives the rotating shaft 12 to rotate, and the rotating shaft 12 can rotate relative to the second gear 131 under the action of the torsion spring, until the first gear 11 squeezes the ball 14, and the ball 14 breaks away from the first accommodating groove. The barrel 3 can drive the first gear 11 to rotate relative to the rotating shaft.

In an optional embodiment, the second gear 131 has a convex portion on one side facing the first gear 11 , and the first gear 11 has a groove on the side facing the second gear 131 , and the convex portion is in contact with the bottom of the groove. Abut.

It should be noted that the second gear 131 can support the first gear 11. In order to ensure small friction between the first gear 11 and the second gear 131, the first gear 11 and the second gear 131 are connected through the protrusion and Groove assembly.

In an optional embodiment, the number of first receiving grooves may be one, two or more than two. In the case where the number of first receiving grooves is at least two, the ball 14 is removed from one first receiving groove. When disengaging and entering another first accommodation groove, the clutch device switches from the linkage state to the separation state, and then switches from the separation state to the linkage state.

It should be noted that the plurality of first receiving grooves are arranged along the circumferential direction of the rotating shaft 12 , that is to say, the plurality of first receiving grooves are arranged around the rotating shaft 12 . When the first gear 11 moves relative to the cage 153 , the balls 14 can be detached from one first accommodation groove and enter another first accommodation groove, thereby realizing switching between the separation state and the linkage state.

In addition, the embodiment of the present application also provides a clutch device 1, as shown in Figures 2, 3, 4 and 5. The clutch device 1 includes a driving component 13, a first gear 11, a rotating shaft 12, a pressing component 15 and a Ball 14.

The rotating shaft 12 has an opposite first end and a second end, and the driving assembly 13 is disposed on the first end of the rotating shaft 12 end, and the driving assembly 13 drives the rotating shaft 12 to rotate. A through hole is provided at the axis center of the first gear 11 , and the rotating shaft 12 passes through the through hole. That is to say, the first gear 11 can rotate relative to the rotating shaft 12 .

In the embodiment of the present application, the driving assembly 13 drives the rotating shaft 12 to rotate, and the pressing assembly 15 drives the first gear to rotate through the balls 14. That is to say, the first gear 11 at this time can rotate with the rotation of the rotating shaft 12; in the third When a gear 11 rotates relative to the rotating shaft 12, the driving assembly 13 can be in a stationary state at this time.

It should be noted that the first receiving groove is a spherical groove, the second receiving groove is adapted to the ball 14, and the second receiving groove may be a through groove.

In an optional embodiment, the number of second receiving slots is at least two, and at least one second receiving slot is The receiving groove is opposite to the first receiving groove.

The target volume is one-half of the volume of the ball 14 .

In an optional embodiment, as shown in FIGS. 3 and 4 , the rotating shaft 12 has a first part and a second part, the first end of the second part is connected to the first part, and the second end of the second part is connected to the driving assembly 13 even The first part is a limiting structure, and the cross section of the first part is a non-circular shape.

In an optional embodiment, as shown in FIGS. 2 , 3 and 4 , the driving assembly 13 includes a second gear 131 and a connecting piece 132 . The second gear 131 is provided at the second end of the rotating shaft 12 , and the second gear 131 is disposed at the second end of the rotating shaft 12 . 131 is sleeved on the rotating shaft 12, one end of the connecting piece 132 is connected to the second gear 131, and the other end is connected to the rotating shaft 12. The second gear 131 drives the rotating shaft 12 to rotate through the connecting piece 132.

It should be noted that the torsion spring is sleeved in the second part.

In an optional embodiment, the number of first receiving grooves is at least two. When the ball 14 breaks away from one first receiving groove and enters another first receiving groove, the clutch device switches from the linkage state to the separation state. state, and then switch from the separated state to the linked state.

It should be noted that the plurality of first receiving grooves are arranged along the circumferential direction of the rotating shaft 12 , that is to say, the plurality of first receiving grooves are arranged around the rotating shaft 12 . When the first gear 11 moves relative to the cage 153 , the balls 14 can be detached from one first receiving groove and enter another first receiving groove, thereby realizing Switch between separation state and linkage state.

In addition, embodiments of the present application also provide an electronic device, including: a housing and the above-mentioned camera module, and the camera module is disposed in the housing.

Specifically, since the electronic device includes the camera module as described above, and the specific structure of the camera module refers to the above embodiment, the electronic device shown in this embodiment includes all the technical solutions of the above embodiment, and therefore has at least all the above features. All the beneficial effects achieved by the technical solutions will not be repeated here.

Of course, in the embodiments of this application, electronic devices include but are not limited to mobile phones, tablet computers, notebook computers, PDAs, vehicle-mounted terminals, wearable devices, and pedometers. The embodiments of this application do not specifically limit the specific type of electronic equipment.

In the description of this specification, reference to terms such as "alternative implementations" and the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A camera module includes: a driving part, a telescopic lens and a clutch device;

The clutch device includes a driving component, a first gear, a rotating shaft, a pressing component and a ball;

The driving component is disposed at the first end of the rotating shaft, and the driving component drives the rotating shaft to rotate. A through hole is provided at the axis center of the first gear, and the rotating shaft is inserted into the through hole. ;

The pressing component is sleeved on the second end of the rotating shaft, the ball is disposed between the pressing component and the first gear, the pressing component is in contact with the ball, and the third ball is disposed between the pressing component and the first gear. A first receiving groove is provided on a gear;

The clutch device has a linkage state and a separation state. When the clutch device is in the linkage state, the ball is located in the first receiving groove, and when the rotating shaft rotates, the pressing assembly The first gear is driven to rotate by the balls; when the clutch device is in a separated state, the balls are separated from the first receiving groove, and the rotating shaft rotates relative to the first gear;

The first gear is connected to the telescopic lens, and the driving member is connected to the driving assembly.
The camera module according to claim 1, wherein the pressing component includes an elastic component, a limiting plate and a cage, the limiting plate is fixedly connected to the rotating shaft, and the cage is sleeved on the rotating shaft. The rotating shaft is movably connected to the rotating shaft. The elastic component is arranged between the limiting plate and the cage. The cage is located on the side of the limiting plate facing the first gear. The elastic component is used to make the cage contact the ball.
The camera module according to claim 2, wherein the holder is provided with a second receiving groove, the notch of the second receiving groove faces the first gear, and at least part of the balls can be accommodated in the first gear. The second holding tank.
The camera module according to claim 3, wherein the number of the second receiving slots is at least two, and at least one of the second receiving slots is opposite to the first receiving slot.
The camera module according to claim 2, wherein the elastic component includes an elastic member and a pressure plate, the pressure plate is sleeved on the rotating shaft, and the pressure plate is disposed on the elastic member toward the protection plate. On one side of the holder, the pressure plate is in contact with the holder.
The camera module according to claim 5, wherein the elastic member is spirally coiled around the rotating shaft, and one end of the elastic member is connected to the limiting plate, and the other end of the elastic member is connected to the retaining plate. frame connection.
The camera module according to claim 1, wherein the second end of the rotating shaft has a limiting structure, and the limiting structure is limitedly connected to the pressing component.
The camera module of claim 7, wherein the rotating shaft has a first part and a second part, a first end of the second part is connected to the first part, and a second end of the second part is connected to The driving assembly is connected, the first part is the limiting structure, and the cross section of the first part is non-circular.
The camera module of claim 7, wherein the rotating shaft has a first part and a second part, a first end of the second part is connected to the first part, and a second end of the second part is connected to The driving assembly is connected, the first part is the limiting structure, and the orthographic projection of the first part on the plane where the first gear is located is within the orthographic projection of the second part on the plane where the first gear is located. .
The camera module according to claim 1, wherein the driving assembly includes a second gear and a connecting member, the second gear is disposed at the second end of the rotating shaft, and the second gear is sleeved on the The rotating shaft, one end of the connecting member is connected to the second gear, and the other end is connected to the rotating shaft. The driving member meshes with the second gear and drives the second gear to rotate. The second gear The connecting piece drives the rotating shaft to rotate.
The camera module according to claim 10, wherein the connecting member is a torsion spring, and the torsion spring is sleeved on the rotating shaft.
The camera module of claim 10, wherein the second gear has a convex portion on one side facing the first gear, and the first gear has a groove on one side facing the second gear, The protruding portion is in contact with the bottom of the groove.
The camera module according to claim 1, wherein the number of the first receiving grooves is at least two. When the ball detaches from one of the first receiving grooves and enters another first receiving groove, In the case of receiving the groove, the clutch device switches from the linkage state to the separation state, and then switches from the separation state to the linkage state.
A clutch device includes: a driving component, a first gear, a rotating shaft, a pressing component and a ball;

The driving component is disposed at the first end of the rotating shaft, and the driving component drives the rotating shaft to rotate. A through hole is provided at the axis center of the first gear, and the rotating shaft is inserted into the through hole. ;

The pressing component is sleeved on the second end of the rotating shaft, the ball is disposed between the pressing component and the first gear, the pressing component is in contact with the ball, and the third ball is disposed between the pressing component and the first gear. A first receiving groove is provided on a gear;

The clutch device has a linkage state and a separation state. When the clutch device is in the linkage state, the ball is located in the first receiving groove, and when the rotating shaft rotates, the pressing assembly The first gear is driven to rotate by the ball;

When the clutch device is in a disengaged state, the ball breaks away from the first receiving groove, and the rotating shaft rotates relative to the first gear.
The clutch device according to claim 14, wherein the pressing component includes an elastic component, a limiting plate and a cage, the limiting plate is fixedly connected to the rotating shaft, and the cage is sleeved on the rotating shaft. , and is movably connected to the rotating shaft, the elastic component is provided between the limiting plate and the cage, the cage is located on the side of the limiting plate facing the first gear, the The elastic component is used to make the cage contact the ball.
The clutch device according to claim 14, wherein the driving assembly includes a second gear and a connecting member, the second gear is disposed at the second end of the rotating shaft, and the second gear is sleeved on the Rotating shaft, one end of the connecting piece is connected to the second gear, and the other end is connected to the rotating shaft. The second gear drives the rotating shaft to rotate through the connecting piece.
An electronic device includes: a casing and a camera module according to any one of claims 1 to 13, the camera module being disposed on the casing.