CN113703141A

CN113703141A - Lens module and electronic equipment

Info

Publication number: CN113703141A
Application number: CN202110889008.8A
Authority: CN
Inventors: 徐景贤; 曹鑫
Original assignee: Vivo Mobile Communication Hangzhou Co Ltd
Current assignee: Vivo Mobile Communication Hangzhou Co Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-11-26

Abstract

The application discloses a lens module and an electronic device, which comprise a lens body, a lens film, a connecting pipe, a mobile unit and a driving unit; the lens body is provided with a groove, the lens film is fixed on the lens body and covers the groove, and a liquid cavity is formed between the groove and the lens film; one end of the connecting pipe is communicated with the liquid cavity, a moving unit is arranged inside the other end of the connecting pipe, and the connecting pipe and the liquid cavity are filled with liquid; the driving unit is connected with the moving unit to drive the moving unit to move in the connecting pipe. The lens module and the electronic equipment are reasonable in structural design and very convenient to adjust, the focal length of the lens module can be accurately adjusted, the lens film can be well protected, and the heat dissipation effect is good.

Description

Lens module and electronic equipment

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to a lens module and electronic equipment.

Background

In the related art, the liquid lens is a zoom lens commonly used in the prior art, and compared with a conventional zoom system, the liquid lens has the advantages of both a compact structure and low cost.

The current focusing mode of the liquid lens is as follows: the lens film is extruded at the periphery of the lens film, so that the radian of the curved surface of the middle part of the lens film is changed under the pressure of liquid, and the focusing process of the liquid lens is realized. However, this adjustment method subjects the lens film to a large tension, and the liquid lens film is easily damaged during long-term use. In addition, in this adjustment method, the pressing force on the lens film and the change in the curvature of the curved surface of the lens film are difficult to control, and the focal length adjustment is complicated.

Disclosure of Invention

The present application is directed to a lens module and an electronic device, which at least solve one of the problems of the related art.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a lens module, including:

the lens comprises a lens body and a lens film, wherein the lens body is provided with a groove, the lens film is fixed on the lens body and covers the groove, and a liquid cavity is formed between the groove and the lens film;

one end of the connecting pipe is communicated with the liquid cavity, the moving unit is arranged inside the other end of the connecting pipe, and the connecting pipe and the liquid cavity are filled with liquid;

a driving unit connected with the moving unit to drive the moving unit to move in the connecting pipe;

the moving unit moves to enable the liquid in the liquid cavity to increase or decrease, and the lens film changes the radian of the curved surface under the action of the liquid.

In a second aspect, an embodiment of the present application provides an electronic device, including:

a housing;

the lens module adopts the lens module, and the lens module is arranged in the shell.

In an embodiment of the present application, the moving unit is capable of discharging the liquid in the connection pipe into the liquid chamber or discharging the liquid of the liquid chamber under the driving of the driving unit. Along with the increase or the reduction of the liquid in the liquid cavity, the pressure of the liquid in the liquid cavity to the lens film is changed, so that the radian of the curved surface of the lens film is changed, the focal length of the lens module is adjusted, and the operation is very convenient. The focal length of the lens module is adjusted through the liquid inlet amount or the liquid outlet amount in the liquid cavity, the operation is very simple, the accuracy is higher, and the adjusting range is wider.

In addition, the larger area of the lens film bears the pressure of liquid, which is beneficial to dispersing the stress of the lens film, thereby well protecting the lens film and prolonging the service life of the lens film.

Additional aspects and advantages of the present 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 present application.

Drawings

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

FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the application;

FIG. 2 is a schematic view of a lens module according to an embodiment of the present disclosure;

FIG. 3 is a reference diagram illustrating an operation status of a lens module according to an embodiment of the present application;

FIG. 4 is a reference diagram illustrating another usage status of a lens module according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of an electronic device according to an embodiment of the application;

fig. 6 is a cross-sectional view of a connecting tube of a lens module according to an embodiment of the present application.

Reference numerals:

in the figure: 100. a lens module; 200. a housing; 300. a battery; 400. a screen; 1. a lens body; 11. a liquid chamber; 2. a lens film; 3. a connecting pipe; 31. a first branch pipe; 32. a second branch pipe; 33. a third branch pipe; 4. a mobile unit; 5. a drive unit; 6. an aperture; 7. a temperature sensor; 8. an insulating layer; 9. and a heat dissipation layer.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following describes a lens module and an electronic device according to an embodiment of the present application with reference to fig. 1 to 6.

As shown in fig. 1 and 2, the present embodiment provides a lens module including a lens body 1, a lens film 2, a connecting tube 3, a moving unit 4 and a driving unit 5. Wherein the lens film 2 has elasticity.

Specifically, referring to fig. 3 and 4, the lens body 1 is provided with a groove for containing liquid. The lens film 2 is fixed to the lens body 1 and covers the groove, and a liquid chamber 11 is formed between the groove and the lens film 2. The radian of the surface of the lens film 2 is changed by increasing and decreasing the liquid in the liquid cavity 11, so that the adjustment of the focal length of the lens module is realized.

More specifically, one end of the connection pipe 3 is communicated with the liquid chamber 11, a moving unit 4 is disposed inside the other end, and the connection pipe 3 and the liquid chamber 11 are filled with liquid. The liquid in the liquid cavity 11 is reduced or increased by increasing or decreasing the liquid in the connecting pipe 3, and the operation is very convenient.

In this embodiment, the driving unit 5 is connected to the moving unit 4 to drive the moving unit 4 to move in the connecting pipe 3. The driving unit 5 can drive the moving unit 4 to move in the connecting pipe 3 along the first direction to push the liquid in the connecting pipe 3 into the liquid chamber 11, and the liquid in the liquid chamber 11 is increased; or the moving unit 4 is driven to move in the second direction in the connection pipe 3 so that the liquid in the liquid chamber 11 enters the connection pipe 3 and the liquid in the liquid chamber 11 decreases.

In one embodiment, the moving unit 4 moves to increase or decrease the liquid in the liquid chamber 11, and the lens film 2 changes the curvature of the curved surface under the action of the liquid.

In the embodiment of the present application, the moving unit 4 can discharge the liquid in the connection pipe 3 into the liquid chamber 11 or cause the liquid of the liquid chamber 11 to be discharged, under the driving of the driving unit 5. Along with the increase or the decrease of the liquid in the liquid cavity 11, the pressure of the liquid in the liquid cavity 11 on the lens film 2 is changed, so that the radian of the curved surface of the lens film 2 is changed, the focal length of the lens module is adjusted, and the operation is very convenient. The focal length of the lens module is adjusted through the liquid inlet amount or the liquid outlet amount in the liquid cavity 11, the operation is very simple, the accuracy is higher, and the adjusting range is wider.

In addition, the larger area of the lens film 2 bears the pressure of liquid, which is beneficial to dispersing the stress of the lens film 2, thereby well protecting the lens film 2 and prolonging the service life of the lens film 2.

In another embodiment, in a non-photographing state, the moving unit 4 moves so that liquid flows in the connection pipe 3 and the liquid chamber 11 to dissipate heat. Wherein, connecting pipe 3 can be aluminum alloy pipe, also can be the copper pipe to guarantee that connecting pipe 3 has better radiating effect.

In this embodiment, since the heat generated by the components of the electronic device, such as the battery 300 and the main board, is relatively large, when the camera module is not used for taking a picture, the liquid in the liquid chamber 11 and the liquid in the connecting pipe 3 can flow through the movement of the moving unit 4, so that the electronic device can be better cooled, and the cooling effect is relatively good.

That is, the lens module in this application not only can be fast and accurate focus adjustment, can dispel the heat effectively moreover, and it is very convenient to use.

The main board, the battery 300, and the like are main heat generating parts inside the electronic device. For the liquid lens, the temperature of the liquid and the optical performance are directly related, and the function of the liquid lens is greatly influenced by serious heat dissipation in the use process of the electronic equipment. And the camera lens module in this application can dispel the heat betterly under the non-shooting state to guarantee that electronic equipment is inside to have more suitable temperature, in order to guarantee that the camera lens module has better shooting effect under the shooting state.

Optionally, the lens module further includes an aperture 6; the diaphragm 6 is movably disposed on a side of the lens film 2 away from the lens body 1.

Through removing light ring 6, can change light ring 6's size to change light ring 6's printing opacity volume, with the needs that satisfy the camera lens module shooting, not only easy operation, the shooting effect is better moreover.

It should be noted that, in the prior art, a driving structure for driving the aperture 6 to move is common, and details are not described herein, and the structure that can move the aperture 6 and change the size is within the protection scope of the present application.

Optionally, corners of the periphery of one side of the diaphragm 6 contacting the lens film 2 are rounded. This enables the diaphragm 6 to reduce damage to the lens film 2 during movement, better protects the lens film 2, and also facilitates movement of the diaphragm 6 over the lens film 2.

Alternatively, as shown in fig. 2, the connecting pipe 3 includes a first branch pipe 31, a second branch pipe 32 and a third branch pipe 33 which are sequentially communicated, and the first branch pipe 31 and the third branch pipe 33 are located on the same side of the second branch pipe 32.

The lens body 1 is located at one end of the third branch pipe 33 away from the second branch pipe 32.

The mobile unit 4 is located at an end of the first branch pipe 31 remote from the second branch pipe 32.

In the above embodiment, the first branch pipe 31, the second branch pipe 32, and the third branch pipe 33, which are sequentially connected, have a C-shaped structure, which not only makes better use of the internal space of the electronic device, but also facilitates the structural layout of the inside of the electronic device. The movement of the moving unit 4 within the first branch pipe 31 is also very convenient, so that it is more convenient to push the liquid in the connection pipe 3 into the liquid chamber 11 or to make the liquid in the liquid chamber 11 into the connection pipe 3.

Alternatively, as shown in fig. 6, the connecting pipe 3 is an outer circular pipe and an inner circular pipe, and the outer portion of the connecting pipe 3 is a rectangular parallelepiped; the inside is a columnar hole.

Further, the cross section of the cylindrical hole in the direction perpendicular to the central axis is circular or elliptical, that is, the cylindrical hole is a circular hole or an elliptical hole. This makes connecting pipe 3 be convenient for arrange in electronic equipment's inside, saves electronic equipment inner space, avoids the space extravagant, and is less to other structure interference, also is convenient for the inside structural layout of electronic equipment. Meanwhile, the round hole or the oval hole reduces the processing difficulty and is convenient to manufacture. And the whole connecting pipe 3 needs to be made into a square pipe, the section is rectangular, and the inside is circular or oval. The rectangle outward appearance is in order to facilitate arranging in electronic equipment's inside, and the circular hole is in order to reduce because the degree of difficulty of right angle processing, the preparation of being convenient for.

Optionally, the lens module further comprises a sealing ring. The connecting pipe 3 is in threaded connection with the lens body 1, and the sealing ring is sleeved on the connecting pipe 3 and seals a gap between the connecting pipe 3 and the lens body 1. The sealing ring effectively avoids the liquid in the liquid cavity 11 and the connecting pipe 3 from leaking, and the accuracy of the focal length adjustment of the lens module is ensured.

Optionally, the lens module further includes a temperature sensor 7; the temperature sensor 7 is disposed on an outer surface of the connection pipe 3. The temperature sensor 7 is used for detecting the temperature of the liquid of the connecting pipe 3, so that a user can know the temperature change of the lens module in time and is helpful for stably controlling the lens module, and the heat is dissipated better and more timely.

For example, when the temperature sensor 7 detects that the temperature of the connection pipe 3 is too high, the controller controls the driving unit 5 to drive the moving unit 4 to move, so as to accelerate the liquid flow for better heat dissipation.

It is further preferred that a mounting groove is provided on the connection pipe 3, and the temperature sensor 7 is disposed in the mounting groove, which makes the fixation of the temperature sensor 7 very stable. Optionally, the temperature sensor 7 is located on a side of the connection pipe 3 close to the screen 400, and the temperature of the screen 400 is relatively stable, so that interference with the temperature sensor 7 is effectively avoided.

In this embodiment, the size of the aperture 6 can be adjusted with the focal length guaranteed to be constant. However, in adjusting the size of the aperture 6, the following problems need to be noted:

if the aperture 6 is reduced, the moving unit 4 needs to be driven to move by the driving device so as to reduce the liquid in the liquid cavity; then the aperture 6 is reduced; finally, the moving unit 4 is driven to move by controlling the driving unit 5 to inject the liquid in the connection tube 3 into the lens chamber. The above-mentioned manner is to reduce the friction between the diaphragm 6 and the lens film 2, thereby better protecting the lens film 2.

Optionally, the lens module further includes an accelerator, the accelerator is mounted on the driving unit 5 to increase the rotation speed of the driving unit 5, an output end of the accelerator is mounted on the moving unit 4, the moving distance of the moving unit 4 is increased by adjusting the rotation speed of the driving unit 5, and the adjusting effect is good.

Optionally, the liquid in the liquid cavity 11 is increased, and the curvature of the curved surface of the lens film 2 is increased; the liquid in the liquid chamber 11 is reduced and the curvature of the curved surface of the lens film 2 is reduced, which makes the change of the curvature of the curved surface very simple.

It should be noted that, when the lens module does not operate, the liquid cavity 11 is filled with liquid, and the radian of the curved surface of the lens film 2 is 0 °. When the lens module works, the radian of the curved surface of the lens film 2 is adjusted by changing the liquid amount in the liquid cavity 11. In general, by adding liquid into the liquid chamber 11 so that the liquid film 2 is bent in a direction away from the liquid chamber 11, the curvature of the curved surface of the liquid film 2 is increased. When the radian of the curved surface of the lens film 2 needs to be reduced, the liquid amount in the liquid cavity 11 is reduced until the radian of the curved surface of the lens film 2 is 0 degrees.

On the other hand, the embodiment of the present application provides an electronic device, as shown in fig. 1, which includes a housing 200 and a lens module 100, where the lens module 100 is disposed inside the housing 200.

The electronic equipment can be a mobile phone, a tablet personal computer, a game machine and other intelligent equipment with a lens module. The electronic equipment is reasonable in structure, simple in focal length adjustment, wide in focal length adjustment range and good in shooting effect.

Optionally, as shown in fig. 5, the electronic device further includes an insulating layer 8 and a battery 300, and the battery 300 is disposed inside the housing 200. The insulating layer 8 covers the outer surface of the connection pipe 3 near the battery 300.

In the embodiment, the battery 300 generates more heat, and the outer surface of the connection tube 3 near the battery 300 is covered with the insulating layer 8, which is helpful for reducing the influence of the heat dissipation of the battery 300 on the shooting of the lens module, so as to better ensure the shooting effect of the lens module.

Optionally, as shown in fig. 5, the electronic device further includes a screen 400 and a heat dissipation layer 9, wherein the screen 400 is mounted to the housing 200; the heat dissipation layer 9 is disposed on a surface of the connection pipe 3 away from the screen 400.

In this embodiment, the heat dissipation layer 9 can accelerate the heat dissipation efficiency of the lens module, and the heat dissipation effect is better.

In one embodiment, as shown in fig. 1, the electronic device further includes a battery 300 disposed at the inner middle portion of the case 200.

Specifically, the lens body 1 is located on the upper side of the battery 300, and the driving unit 5 is located on the lower side of the battery 300. Referring to fig. 1, the lens body 1 is disposed in an inner upper region of the electronic device, the driving unit 5 is disposed in an inner lower region of the electronic device, and the battery 300 is disposed between the two regions, such that the internal structure of the electronic device is very reasonable in design, the driving unit 5 does not interfere with other structures inside the electronic device, which is not only beneficial to the installation of the lens module 100, but also convenient for the focal length adjustment of the lens module 100, and meanwhile, the heat dissipation of the inside of the electronic device through the lens module 100 is facilitated, and the heat dissipation effect is good.

Further specifically, the connection pipe 3 is close to and distributed along the length direction of the long side wall of the case 200, which enables the connection pipe 3 to be arranged long in the case 200. Along with the length increase of the connecting pipe 3, the liquid amount of the liquid entering and exiting the connecting pipe 3 can be effectively increased, so that the change range of the radian of the curved surface of the lens film 2 is favorably enlarged, and the heat dissipation of the connecting pipe 3 is conveniently realized. One end of the connecting tube 3 is bent and extended towards the driving unit 5, and the other end is bent and extended towards the lens body 1, so that not only is simple connection between the connecting tube 3 and the lens body 1 as well as between the connecting tube 3 and the moving unit 4 realized, but also the driving unit 5 is convenient for driving the moving unit 4 to move in the connecting tube 3, and liquid in the liquid cavity 11 is increased or reduced.

In the above embodiment, the structure of the lens module 100 is reasonable, other components in the electronic device can be better avoided, and meanwhile, the length of the connecting pipe 3 can be better extended, so that the change range of the curvature of the curved surface of the lens film 2 is increased, and the heat dissipation efficiency of the lens module 100 can be improved.

Therefore, the electronic equipment provided by the embodiment not only can adjust the focal length more simply and conveniently, but also has a better heat dissipation effect.

The lens module and the electronic equipment that this embodiment provided, structural design is reasonable not only, and it is very convenient to adjust the focus, can not only accurately adjust the focus of lens module, can protect lens membrane 2 moreover better, and the radiating effect is better.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or 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 application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A lens module, comprising:

the liquid lens comprises a lens body (1) and a lens film (2), wherein the lens body (1) is provided with a groove, the lens film (2) is fixed on the lens body (1) and covers the groove, and a liquid cavity (11) is formed between the groove and the lens film (2);

the liquid filling device comprises a connecting pipe (3) and a moving unit (4), wherein one end of the connecting pipe (3) is communicated with the liquid cavity (11), the moving unit (4) is arranged inside the other end of the connecting pipe, and liquid is filled in the connecting pipe (3) and the liquid cavity (11);

a driving unit (5), wherein the driving unit (5) is connected with the moving unit (4) to drive the moving unit (4) to move in the connecting pipe (3);

the moving unit (4) moves to increase or decrease the liquid in the liquid cavity (11) and change the curvature of the curved surface of the lens film (2).

2. The lens module as claimed in claim 1, further comprising an aperture (6);

the diaphragm (6) is movably arranged on one side of the lens film (2) far away from the lens body (1).

3. The lens module according to claim 2, wherein the corners of the periphery of the side of the aperture (6) contacting the lens film (2) are rounded.

4. The lens module according to claim 1, wherein the connecting tube (3) comprises a first branch tube (31), a second branch tube (32) and a third branch tube (33) which are communicated in sequence, and the first branch tube (31) and the third branch tube (33) are positioned on the same side of the second branch tube (32);

the lens body (1) is positioned at one end of the third branch pipe (33) far away from the second branch pipe (32);

the moving unit (4) is located at an end of the first branch pipe (31) remote from the second branch pipe (32).

5. The lens module as claimed in claim 1, wherein the connecting tube (3) is an outer and inner circular tube.

6. The lens module as claimed in claim 1, further comprising a gasket;

the connecting pipe (3) is in threaded connection with the lens body (1), and the sealing ring is sleeved on the connecting pipe (3) and seals a gap between the connecting pipe (3) and the lens body (1).

7. The lens module according to claim 1, further comprising a temperature sensor (7);

the temperature sensor (7) is arranged on the outer surface of the connecting pipe (3).

8. The lens module as recited in claim 1,

the liquid in the liquid cavity (11) is increased, and the radian of the curved surface of the lens film (2) is increased;

the liquid in the liquid cavity (11) is reduced, and the radian of the curved surface of the lens film (2) is reduced.

9. An electronic device, comprising:

a housing (200);

the lens module set of any one of claims 1 to 8, which is disposed inside the housing (200).

10. The electronic device according to claim 9, further comprising an insulating layer (8) and a battery (300), the battery (300) being disposed inside the housing (200);

the insulating layer (8) covers the outer surface of the connecting pipe (3) close to the battery (300).