WO2022188641A1 - Retractable camera module and electronic device - Google Patents

Abstract

Disclosed are a retractable camera module and an electronic device. An optical lens in the retractable camera module is retractable relative to a photosensitive chip thereof, so as to switch between a working state and a non-working state; in the working state, the optical lens extends out relative to the photosensitive chip for imaging; in the non-working state, the optical lens retracts back relative to the photosensitive chip to reduce the overall height of the retractable camera module. In this way, the technical contradiction between the overall height and a large effective focal length of a conventional upright camera module is solved. The retractable camera module comprises a retractable sleeve assembly for carrying the optical lens to perform retractable movement relative to the photosensitive chip. In particular, the retractable sleeve assembly has a dustproof structure for preventing dirt such as dust from entering the camera module through a gap of the retractable sleeve assembly.

Description

Retractable camera modules and electronics technical field

The present application relates to the field of camera modules, and in particular, to miniaturized and retractable camera modules and electronic devices for terminal equipment.

Background technique

With the popularization of mobile electronic devices, the related technologies of camera modules used in mobile electronic devices to help users acquire images (eg, videos or images) have been rapidly developed and advanced. Currently in the market, a camera module configured in a mobile electronic device (eg, a smart phone) needs to achieve a multi-zoom shooting function.

In order to achieve multiple zoom shooting, at least one telephoto camera module needs to be configured (here, the telephoto camera module refers to a camera module with a larger effective focal length). Moreover, with the increase of the zoom factor, the total focal length of the telephoto camera module will increase accordingly, which leads to the continuous increase of the overall height and size of the camera module, which is difficult to adapt to the development trend of thin and light electronic devices.

In order to solve the technical contradiction between the height design of the camera module and the high-magnification zoom shooting function, most manufacturers use the periscope camera module to replace the traditional vertical camera module. Compared with the traditional upright camera module, the periscope camera module is provided with light turning elements (for example, prisms, mirrors, etc.) to change the imaging optical path, thereby reducing the overall height and size of the camera module at the same time. To meet the optical design requirements with a large effective focal length.

However, the periscope camera module has a relatively more complex structure, which on the one hand leads to an increase in the cost, and on the other hand, directly leads to an increase in the difficulty of the process. In terms of optical performance, although the periscope camera module has a relatively large effective focal length, its effective focal length is a fixed value, that is, the optical performance of the periscope camera module has relatively poor adjustability. In order to meet the diverse needs of consumers for camera modules, it is usually necessary to configure multiple camera modules for electronic devices, that is, to configure multiple camera modules for electronic devices, which not only brings about a surge in cost, but also further exacerbates process difficulty.

Therefore, a new type of camera module solution is required.

SUMMARY OF THE INVENTION

An advantage of the present application is to provide a retractable camera module and an electronic device, wherein the optical lens in the retractable camera module is retractable relative to its photosensitive chip, so as to be able to operate under working and non-working conditions. Switching, wherein, in the working state, the optical lens of the retractable camera module is extended for imaging, and in the non-working state, the optical lens of the retractable camera module is retracted to shrink The overall height dimension of the retractable camera module, in this way, solves the technical contradiction between the height design and the larger effective focal length of the traditional upright camera module.

Another advantage of the present application is to provide a retractable camera module and an electronic device, wherein the retractable camera module includes a retractable sleeve assembly, and the optical lens is mounted on the retractable sleeve Inside the barrel assembly and under the action of the telescopic assembly, the optical lens is driven to move toward or away from the photosensitive chip in a telescopic motion.

Another advantage of the present application is to provide a retractable camera module and an electronic device, wherein the retractable sleeve assembly includes multi-segment sleeve units movably connected to each other, wherein the multi-segment sleeve There is a preset gap between every two sleeve monomers in the barrel unit to provide a space for the two to move, and a dust-proof mechanism is arranged in the preset gap to prevent dust and other external contamination from entering the barrel. The gap enters the inside of the camera module.

Another advantage of the present application is to provide a retractable camera module and an electronic device, wherein, in some embodiments of the present application, the dust-proof dust-proof device disposed in the gap between two adjacent sleeve units The mechanism can also guide the movement between two adjacent sleeve units, so that the movement between the two adjacent sleeve units is smoother and more balanced.

Another advantage of the present application is to provide a retractable camera module and an electronic device, wherein, in some embodiments of the present application, the retractable sleeve assembly further includes a device for preventing two adjacent sleeves from being Buffers for collisions between bodies. In particular, in some examples, the surface of the buffer member is viscous, which can also play a certain dustproof effect.

Another advantage of the present application is to provide a telescopic camera module and electronic equipment, wherein the telescopic assembly uses a piezoelectric actuator as a driver to move each section of the sleeve monomer, so as to ensure that the sleeve The linearity of the movement of the single unit can improve the zoom control accuracy of the retractable camera module.

Other advantages and features of the application will become apparent from the description below and may be realized by means of the instrumentalities and combinations particularly pointed out in the claims.

In order to achieve at least one of the above advantages, the present application provides a retractable camera module, which includes:

A photosensitive assembly, comprising: a circuit board and the photosensitive chip are electrically connected to the circuit board;

retractable sleeve assembly;

an optical lens, the optical lens is installed in the retractable sleeve assembly to be held on the photosensitive path of the photosensitive chip; and

A drive assembly for driving the telescopic sleeve assembly to perform telescopic motion relative to the photosensitive chip;

Wherein, through the telescopic sleeve assembly and the driving assembly, the optical lens is adapted to move telescopically relative to the photosensitive chip to switch between the first state and the second state, wherein when in the first state In a state, the retractable sleeve assembly is driven to move upward relative to the photosensitive chip to drive the optical lens to move upward relative to the photosensitive chip, so as to increase the distance between the optical lens and the photosensitive chip ; When in the second state, the retractable sleeve assembly is driven to move downward relative to the photosensitive chip to drive the optical lens to move downward relative to the photosensitive chip to reduce the size of the optical lens the distance from the photosensitive chip;

Wherein, the retractable sleeve assembly includes at least two sleeve units nested with each other and a dustproof structure disposed between at least a pair of adjacent two sleeve units among the at least two sleeve units .

In the retractable camera module according to the present application, the at least two sleeve units include a first sleeve unit and a second sleeve unit that are nested inside and outside, and the dustproof structure is arranged on the between the first sleeve unit and the second sleeve unit.

In the retractable camera module according to the present application, a gap is formed between the outer side wall of the first sleeve unit and the inner side wall of the second sleeve unit, and the dustproof structure includes a gap formed in the Dust trapping elements within the gap.

In the retractable camera module according to the present application, the surface of the dust collecting element has stickiness.

In the retractable camera module according to the present application, the dust collecting element is made of adhesive.

In the retractable camera module according to the present application, the dust-catching element is circumferentially formed on the outer sidewall of the first sleeve unit.

In the retractable camera module according to the present application, the dust-catching element is circumferentially formed on the inner sidewall of the second sleeve unit.

In the retractable camera module according to the present application, the size of the gap is 0.05 mm to 3 mm, and the thickness of the dust collecting element is 20 μm to 50 μm.

In the retractable camera module according to the present application, the dust-proof structure further includes a plurality of protrusions protrudingly extending from the dust-catching element, and free ends of at least some of the protrusions of the plurality of protrusions are in contact with each other. on the inner sidewall of the second sleeve unit.

In the retractable camera module according to the present application, the free end of the protrusion has a certain elasticity.

In the retractable camera module according to the present application, the protrusions integrally and protrudely extend from the dust-catching element.

In the retractable camera module according to the present application, the plurality of protrusions are symmetrically arranged on the outer side of the first sleeve unit relative to the axis set by the retractable sleeve assembly.

In the retractable camera module according to the present application, the plurality of bumps are distributed in rows on the outer side of the first sleeve unit.

In the retractable camera module according to the present application, among the rows formed by the plurality of bumps, at least two adjacent rows of the bumps are arranged in a staggered manner.

In the retractable camera module according to the present application, the dust-proof structure further includes a plurality of protrusions protrudingly extending from the dust-catching element, and free ends of at least some of the protrusions of the plurality of protrusions are in contact with each other. on the outer sidewall of the first sleeve unit.

In the retractable camera module according to the present application, the free end of the protrusion has a certain elasticity.

In the retractable camera module according to the present application, the protrusions integrally and protrudely extend from the dust-catching element.

In the retractable camera module according to the present application, the plurality of projections are symmetrically arranged on the inner side of the second sleeve unit relative to the axis set by the retractable sleeve assembly.

In the retractable camera module according to the present application, the plurality of bumps are distributed in rows on the inner side of the second sleeve unit.

In the retractable camera module according to the present application, among the rows formed by the plurality of bumps, at least two adjacent rows of the bumps are arranged in a staggered manner.

In the retractable camera module according to the present application, the second sleeve unit includes a peripheral wall forming the inner side wall and a bottom wall extending inward from the peripheral wall, wherein the dustproof structure further includes a buffer member disposed on the bottom wall and corresponding to the lower peripheral edge of the first sleeve unit, the buffer member is configured to prevent the lower peripheral edge of the first sleeve unit from interacting with the second sleeve The bottom wall of the unit touches.

In the retractable camera module according to the present application, the outer surface of the buffer member has viscosity.

In the retractable camera module according to the present application, the buffer is formed of an adhesive.

In the retractable camera module according to the present application, the thickness dimension of the buffer member is 20 μm to 50 μm.

In the retractable camera module according to the present application, the buffer member has an annular structure.

In the retractable camera module according to the present application, the retractable sleeve assembly has a lower end and an upper end opposite to the lower end, and the optical lens is mounted on the upper end of the retractable sleeve .

In the retractable camera module according to the present application, the retractable camera module further comprises a guide sleeve retractably extending between the photosensitive chip and the upper end of the retractable sleeve assembly, The guide sleeve has through holes corresponding to the optical lens and the photosensitive chip.

In the retractable camera module according to the present application, one end of the guide sleeve is fixed on the upper end of the retractable sleeve assembly, and the other end is fixed above the photosensitive chip.

In the retractable camera module according to the present application, the photosensitive component further includes a base disposed on the circuit board, the base has a light-passing hole corresponding to at least a photosensitive area of the photosensitive chip, wherein , the other end of the conducting sleeve is fixed above the photosensitive chip by being arranged on the base.

In the retractable camera module according to the present application, the inner diameter of the guide sleeve gradually increases from top to bottom.

In the retractable camera module according to the present application, the guide sleeve includes at least two guide sleeve units nested with each other, and at least one pair of the guides disposed in the at least two guide sleeve units The dustproof structure between the sleeve monomers.

According to another aspect of the present application, an electronic device is also provided, which includes: the above-mentioned retractable camera module.

In the electronic device according to the present application, the minimum height dimension of the retractable camera module is less than or equal to the thickness dimension of the electronic device.

Further objects and advantages of the present application will be fully realized by an understanding of the ensuing description and drawings.

These and other objects, features and advantages of the present application are fully embodied by the following detailed description, drawings and claims.

Description of drawings

The above and other objects, features and advantages of the present application will become more apparent from the detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation to the present application. In the drawings, the same reference numbers generally refer to the same components or steps.

FIG. 1 is a schematic structural diagram of a retractable camera module in its working state according to an embodiment of the present application.

FIG. 2 is a schematic structural diagram of the retractable camera module in its non-working state according to an embodiment of the present application.

FIG. 3 is a schematic three-dimensional cross-sectional view of the retractable camera module according to an embodiment of the present application.

FIG. 4 illustrates a partially enlarged schematic diagram of the retractable camera module according to an embodiment of the present application.

FIG. 5 illustrates a partially enlarged schematic diagram of a variant implementation of the retractable camera module according to an embodiment of the present application.

FIG. 6 is a schematic diagram illustrating a plan development of the dustproof structure in the modified implementation of the retractable camera module according to the embodiment of the present application.

FIG. 7 is a schematic diagram illustrating another plan development of the dustproof structure in the modified implementation of the retractable camera module according to the embodiment of the present application.

FIG. 8A illustrates a schematic view of the dustproof structure of the dustproof structure shown in FIG. 6 .

FIG. 8B illustrates a schematic view of the dustproof structure shown in FIG. 7 .

FIG. 9 is a schematic diagram illustrating the movement of the retractable camera module according to an embodiment of the present application.

FIG. 10 illustrates a schematic diagram of a buffer member of the retractable camera module according to an embodiment of the present application.

FIG. 11 illustrates a partially enlarged schematic diagram of the retractable camera module according to an embodiment of the present application.

FIG. 12 illustrates a schematic diagram of a retractable camera module according to another embodiment of the present application.

13 illustrates a schematic diagram of an electronic device according to an embodiment of the present application.

FIG. 14 illustrates another schematic diagram of an electronic device according to an embodiment of the present application.

FIG. 15 illustrates another schematic view of the electronic device illustrated in FIG. 14 .

Detailed ways

Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.

Application overview

As mentioned above, in the current market, a camera module configured in a mobile electronic device (eg, a smart phone) needs to realize a multi-zoom shooting function. In order to achieve multiple zoom shooting, at least one telephoto camera module needs to be configured. However, with the increase of the zoom factor, the total focal length of the telephoto camera module will increase accordingly, which leads to the continuous increase of the overall height and size of the camera module, which is difficult to adapt to the development trend of thin and light electronic devices.

In order to solve the technical contradiction between the height design of the camera module and the high-magnification zoom shooting function, most manufacturers use the periscope camera module to replace the traditional vertical camera module. Compared with the traditional upright camera module, the periscope camera module is provided with light turning elements (for example, prisms, mirrors, etc.) to change the imaging optical path, thereby reducing the overall height and size of the camera module at the same time. To meet the optical design requirements with a large effective focal length.

However, the periscope camera module has a relatively more complex structure, which on the one hand leads to an increase in its cost, and on the other hand, directly leads to an increase in its technological difficulty. In terms of optical performance, although the periscope camera module has a relatively large effective focal length, its effective focal length is a fixed value, that is, the optical performance of the periscope camera module has relatively poor adjustability. In order to meet the diverse needs of consumers for camera modules, it is usually necessary to configure multiple camera modules for electronic devices, that is, to configure multiple camera modules for electronic devices, which not only brings about a surge in cost, but also further exacerbates process difficulty.

In order to meet the shooting needs of users and the assembly requirements of terminal equipment manufacturers for modules, the inventor of the present application proposes a technical route for a retractable camera module, which has the same characteristics as the existing vertical camera module and periscope camera module. The camera module has a completely different structure and working mechanism.

Specifically, in the present application, the optical lens of the retractable camera module is retractable relative to its photosensitive chip to switch between a working state and a non-working state, wherein, in the working state, the retractable The optical lens of the retractable camera module is extended for imaging, and in the non-working state, the optical lens of the retractable camera module is retracted to reduce the overall height dimension of the retractable camera module.

In the research and development process of the above-mentioned retractable camera module, a technical focus is how to realize the telescopic motion of the optical lens relative to the photosensitive chip. In a feasible solution, the inventor of the present application uses the retractable sleeve assembly to drive the movement of the optical lens to realize the expansion and contraction of the optical lens. Specifically, the telescopic sleeve assembly includes multi-segment sleeve units that are movably connected to each other, so as to drive the optical lens away from or close to the photosensitive chip through the movement between the multi-segment sleeve units.

It should be understood that, in order to enable the telescopic sleeve assembly to be telescopic, a preset gap needs to be configured between every two sleeve units in the multi-segment sleeve unit to provide a space for the two to move. That is, when designing the telescopic sleeve assembly, a certain clearance must be reserved for it. However, when configuring the gap, many technical problems and technical contradictions are encountered.

On the one hand, if the clearance is too small, it will lead to the situation that the assembly is not in place due to interference when assembling and forming the telescopic sleeve assembly. In addition, a certain smooth transition needs to be ensured between every two sleeve monomers. If the gap between two adjacent sleeve monomers is too small, the friction between the two will be too large (the frictional force forms resistance), thereby affecting the linearity, smoothness and balance of the expansion and contraction of the telescopic sleeve assembly.

On the other hand, if the gap between the two adjacent sleeve monomers is larger, the external dirt, such as dust, dust, etc., will enter the interior of the module along the gap. If the dirt entering the inside reaches the photosensitive area of the photosensitive chip, it will cause poor imaging.

That is, in the technical solution of the present application, the parameter configuration of the gap between every two sleeve monomers forms a technical contradiction, neither too large nor too small. The inventor of the present application also tried to take a moderate value, but the telescopic performance of the telescopic sleeve assembly could not well meet the technical requirements when the moderate value was tested.

In view of the above technical contradictions and technical problems, the technical idea of the present application is to configure a gap of sufficient size between each two adjacent sleeve units on the one hand to meet the activity requirements of the two, on the other hand, in the gap A dust-proof mechanism is provided inside to prevent external dirt such as dust from entering the interior of the camera module from the gap.

Since the dustproof structure is arranged in the gap, in some embodiments of the present application, the dustproof mechanism can also guide the movement between two adjacent sleeve units, so that the two adjacent sleeves can be moved. The movement between the barrel cells is smoother and more balanced.

Based on this, the present application proposes a retractable camera module, which includes: a photosensitive assembly, including: a circuit board and the photosensitive chip are electrically connected to the circuit board; a retractable sleeve assembly; an optical lens, the The optical lens is installed in the retractable sleeve assembly to be held on the photosensitive path of the photosensitive chip; and a driving assembly for driving the retractable sleeve assembly to perform telescopic motion relative to the photosensitive chip ; wherein, through the telescopic sleeve assembly and the driving assembly, the optical lens is adapted to move telescopically relative to the photosensitive chip to switch between the first state and the second state, wherein when in the In the first state, the retractable sleeve assembly is driven to move upward relative to the photosensitive chip to drive the optical lens to move upward relative to the photosensitive chip, so as to increase the distance between the optical lens and the photosensitive chip. distance; when in the second state, the retractable sleeve assembly is driven to move downward relative to the photosensitive chip to drive the optical lens to move downward relative to the photosensitive chip to reduce the optical The distance between the lens and the photosensitive chip; wherein, the retractable sleeve assembly includes at least two sleeve units nested with each other and at least a pair of adjacent two sleeve units disposed in the at least two sleeve units The dustproof structure between the sleeve monomers.

Having introduced the basic principles of the present application, various non-limiting embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Exemplary retractable camera module

As shown in FIG. 1 to FIG. 3 , the retractable camera module based on the embodiment of the present application is illustrated, wherein the retractable camera module 100 includes: a photosensitive component 10 , which is held in the photosensitive component 10 . The optical lens 20 on the photosensitive path, and the telescopic assembly 30 for adjusting the relative positional relationship between the optical lens 20 and the photosensitive assembly 10 .

More specifically, in the embodiment of the present application, the optical lens 20 includes a lens barrel 21 and at least one optical lens 22 installed in the lens barrel 21 . Those skilled in the art should know that the resolution of the optical lens 20 is proportional to the number of the optical lenses 22 , that is, the higher the resolution, the more the number of the optical lenses 22 . Therefore, preferably, in the embodiment of the present application, the optical lens 20 includes multiple pieces of optical lenses 22 , for example, 4 pieces, 5 pieces or 6 pieces of optical lenses 22 .

Moreover, in the embodiment of the present application, the optical lens 20 has a larger effective focal length, so that the retractable camera module 100 can be applied as a telephoto camera module. More specifically, in the embodiments of the present application, the effective focal length of the optical lens 20 ranges from 19 mm to 29 mm. For example, when the retractable camera module 100 is used to achieve 5x optical zoom, the range of the effective focal length of the optical lens 20 is 19mm to 23mm, preferably, the range of the effective focal length of the optical lens 20 is 20mm to 22mm. For another example, when the retractable camera module 100 is used to achieve 10x optical zoom, the range of the effective focal length of the optical lens 20 is 26mm to 30mm, preferably, the range of the effective focal length of the optical lens 20 27mm to 29mm.

It is worth mentioning that, in the embodiment of the present application, the type of the optical lens 20 is not limited by the present application, and it can be implemented as an integrated optical lens, or can be implemented as a split optical lens. Specifically, when the optical lens 20 is implemented as an integrated optical lens, the lens barrel 21 has an integrated structure, and a plurality of the optical lenses 22 are assembled in the lens barrel 21 . When the optical lens 20 is implemented as a split lens, the lens barrel 21 includes at least two cylindrical units, and a plurality of the optical lenses 22 are assembled in the at least two cylindrical units respectively to form a plurality of lenses A single unit, the plurality of lens units are assembled together by means of active alignment to form the optical lens 20 .

As shown in FIG. 1 to FIG. 3 , in the embodiment of the present application, the photosensitive assembly 10 includes: a circuit board 11 , a photosensitive chip 12 , a bracket 13 and a filter element 14 . In the embodiment of the present application, the photosensitive chip 12 is electrically connected to the circuit board 11 (for example, the photosensitive chip 12 is electrically connected to the circuit board 11 through wires), so that the circuit board 11 is used as the The photosensitive chip 12 provides the control circuit and electric power required for operation. The bracket 13 is disposed on the circuit board 11 to support other components, wherein the bracket 13 has a light window 130 corresponding to at least a photosensitive area of the photosensitive chip 12 . For example, in some specific examples of the present application, the filter element 14 can be mounted on the bracket 13, so that the filter element 14 is kept on the photosensitive path of the photosensitive chip 12, thus, During the process of ambient light passing through the filter element 14 to reach the photosensitive chip 12 , the stray light in the ambient light can be filtered by the filter element 14 to improve imaging quality.

It is worth mentioning that in other examples of the present application, the filter element 14 can also be mounted on the bracket 13 in other ways. For example, the filter element bracket is first set on the bracket 13, and then The filter element 14 is mounted on the filter element holder, that is, in this example, the filter element 14 can be indirectly mounted on the holder 13 via other supports. Of course, in other examples of the present application, the filter element 14 can also be installed in other positions of the retractable camera module 100 , for example, the filter element 14 can be implemented as a filter film and The surface of a certain piece of optical lens 22 attached to the optical lens 20 is not limited by this application.

In order to increase the bottom strength of the photosensitive assembly 10 , in some examples of the present application, the photosensitive assembly 10 further includes a reinforcing plate 15 disposed on the lower surface of the circuit board 11 . A steel plate is arranged on the lower surface of the circuit board 11 to strengthen the strength of the circuit board 11 through the steel plate. Correspondingly, the reinforcing plate 15 can be configured to have the same shape and size as the circuit board 11 , so that after being stacked on the lower surface of the circuit board 11 , the entirety of the circuit board 11 to strengthen. Of course, in some examples of the present application, the size of the reinforcing plate 15 may be smaller than that of the circuit board 11, so as to strengthen the circuit board 11 in part. Of course, in some other examples of the present application, the size of the reinforcing plate 15 may be larger than that of the circuit board 11 , so that after being stacked on the back of the circuit board 11 , a part of the area of the reinforcing plate 15 Protruding from the side of the circuit board 11 , the area where the reinforcing plate 15 protrudes from the circuit board 11 can be used as a mounting support.

As shown in FIG. 1 to FIG. 3 , in the embodiment of the present application, the telescopic assembly 30 includes: a telescopic sleeve assembly 33 and a driving assembly 31 , wherein the optical lens 20 is mounted on the telescopic sleeve In the barrel assembly 33 , the driving assembly 31 is used to drive the telescopic sleeve assembly 33 to perform telescopic motion to drive the optical lens 20 to perform telescopic motion, so that the optical lens and the photosensitive assembly 10 are connected to each other. The phase position relationship is adjusted.

In an example of the present application, as shown in FIG. 1 to FIG. 3 , the retractable sleeve assembly 33 is installed on the installation area of the photosensitive assembly 10 , for example, can be installed on the circuit board 11 , Alternatively, it is mounted on the area of the reinforcing plate 15 protruding from the circuit board 11 . Preferably, in the embodiment of the present application, the lower end of the telescopic sleeve assembly 33 is mounted on the area of the reinforcing plate 15 that protrudes from the circuit board 11 , so as to pass through the reinforcing plate 15 to provide The retractable sleeve assembly 33 provides a flat mounting base with sufficient strength. And, when the telescopic sleeve assembly 33 is installed on the reinforcing plate 15, the central axis of the telescopic sleeve assembly 33 is preferably aligned with the central axis of the photosensitive chip 12, that is, preferably , after being mounted on the mounting substrate of the photosensitive assembly 10 , the retractable sleeve assembly 33 is also held on the photosensitive path of the photosensitive chip 12 .

Further, as shown in FIGS. 1 to 3 , in the embodiment of the present application, the optical lens 20 is installed in the retractable sleeve assembly 33 to be held on the photosensitive path of the photosensitive chip 12 . Specifically, in the example shown in FIGS. 1 to 3 , the optical lens 20 is mounted on the upper end of the telescopic sleeve assembly 33 , so that when the telescopic sleeve assembly 33 is driven relative to the When the photosensitive chip 12 is telescopically moved, the optical lens 20 installed in the telescopic sleeve assembly 33 can follow the movement of the telescopic sleeve assembly 33 to adjust the optical lens 20 and the optical lens. The relative positional relationship between the photosensitive chips 12 is described.

It is worth mentioning that, in other examples of the present application, the optical lens 20 may be installed at other positions of the retractable sleeve assembly 33 , for example, installed at the upper end of the retractable sleeve assembly 33 adjacent to its upper end The position of the middle of the telescopic sleeve assembly 33, or the position of the middle of the telescopic sleeve assembly 33, is not limited by this application. In addition, in some examples of the present application, in order to reduce the lateral size of the retractable camera module 100 , the lens barrel 21 may not be configured for the optical lens 20 , and the barrel of the retractable sleeve assembly 33 may be selected. The body is used as the lens barrel 21 of the at least one optical lens 22, which is also not limited by this application.

Correspondingly, in the embodiment of the present application, as shown in FIG. 1 and FIG. 2 , through the retractable sleeve assembly 33 and the driving assembly 31 , the optical lens 20 can be retractable relative to the photosensitive chip 12 . Telescopically moves to switch between a first state and a second state, wherein when in the first state, the telescopic sleeve assembly 33 is driven by the driving assembly 31 to be upward relative to the photosensitive chip 12 The movement drives the optical lens 20 to move upward relative to the photosensitive chip 12 to increase the distance between the optical lens 20 and the photosensitive chip 12 , as shown in FIG. 1 . As shown in FIG. 2 , when in the second state, the retractable sleeve assembly 33 is driven by the driving assembly 31 to be moved downward relative to the photosensitive chip 12 to drive the optical lens 20 relative to the The photosensitive chip 12 moves downward to reduce the distance between the optical lens 20 and the photosensitive chip 12 . It should be understood that the first state is the working state of the retractable camera module 100 , and the second state is the non-working state of the retractable camera module 100 .

That is, in the embodiment of the present application, compared with the traditional upright camera module, the retractable camera module 100 has two states: a working state and a non-working state, wherein, when in the working state, The optical lens 20 is extended as the retractable sleeve assembly 33 is stretched upward, so that the distance between the optical lens 20 and the photosensitive chip 12 meets the shooting requirements (here, the shooting requirements represent all The total optical length between the optical lens 20 and the photosensitive chip 12 meets the shooting requirements); when in the non-working state, the optical lens 20 is retracted as the retractable sleeve assembly 33 is retracted downward. retracted, so that the overall height dimension of the retractable camera module 100 is reduced, so as to meet the size requirements for assembling the retractable camera module 100 in a terminal device. That is, in the working state and the non-working state, the distance between the optical lens 20 and the photosensitive chip 12 is adjusted by the retractable sleeve assembly 33, so that in the working state, the optical lens 20 The distance between the optical lens 20 and the photosensitive chip 12 meets the shooting requirements, and in the non-working state, the distance between the optical lens 20 and the photosensitive chip 12 is shortened as much as possible, so that the retractable The overall height dimension of the camera module 100 can be reduced as much as possible.

More specifically, when the retractable camera module 100 is in a working state, the retractable sleeve assembly 33 is driven to be extended upward in a direction away from the photosensitive chip 12 . The overall height dimension of the retractable camera module 100 gradually increases. Correspondingly, when the retractable sleeve assembly 33 is fully extended, the overall height dimension of the retractable camera module 100 reaches the maximum value. Here, in order to For convenience of description, the maximum value is defined as the maximum height dimension, and the height dimension of the retractable camera module 100 represents the distance between the top surface and the bottom surface of the retractable camera module 100 .

Correspondingly, when the retractable camera module 100 is in a non-working state, the retractable sleeve assembly 33 is driven to be retracted downward in a direction close to the photosensitive chip 12 . The overall height dimension of the telescopic camera module 100 is gradually reduced. Correspondingly, when the telescopic sleeve assembly 33 is fully retracted, the overall height dimension of the telescopic camera module 100 reaches a minimum value, here , for the convenience of description, the minimum value is defined as the minimum height dimension, and the height dimension of the retractable camera module 100 represents the distance between the top surface and the bottom surface of the retractable camera module 100 .

Specifically, when the retractable camera module 100 is configured as the rear camera module of the terminal device, that is, when the retractable camera module 100 is installed on the back of the terminal device, the minimum The height dimension is basically the same as the thickness dimension of the terminal device. Here, the minimum height dimension is substantially consistent with the thickness dimension of the terminal device, indicating that after the retractable camera module 100 is installed in the terminal device, its upper end surface is flush with the back of the terminal device, or, slightly below the back of the terminal device. Of course, according to actual requirements, the upper end surface of the retractable camera module 100 can also be higher than the back surface of the terminal device, but generally speaking, for the sake of beauty, the protruding height cannot be too large, and can generally be controlled between 0mm and between 5mm.

Correspondingly, when the retractable camera module 100 is configured as a rear camera module of a terminal device, in the working state, the optical lens 20 of the retractable camera module 100 will be extended so that the distance between the optical lens 20 and the photosensitive chip 12 meets the requirement of the optical back focus value for zoom shooting, so that the imaging quality can be guaranteed. As shown in FIG. 1 , in a working state, the height of the retractable camera module 100 is significantly larger than the thickness of the terminal device. It should be understood that, in a specific implementation, the maximum height dimension and the minimum height dimension depend on the requirements of the terminal device for the optical zoom magnification.

Specifically, taking the use of the retractable idol module to achieve 5x optical zoom as an example, the range of the minimum height size is 8mm-11mm, preferably, the range of the minimum height size is 9mm-10mm; The range of the maximum height dimension is 23mm-26mm, preferably, the range of the maximum height dimension is 24mm-25mm. Taking the use of the retractable idol module to achieve 10x optical zoom as an example, the range of the minimum height size is 9mm-12mm, preferably, the range of the minimum height size is 10mm-11mm; the maximum height The size is in the range of 28mm-32mm, preferably, the maximum height dimension is in the range of 29mm-31mm.

In addition, when in the working state, the optical back focus value of the retractable camera module 100 is the largest, and when in the non-working state, the optical back focus value of the retractable camera module 100 is the smallest. More specifically, taking the retractable camera module 100 being used for 5x optical zoom as an example, in the working state, the optical back focus value of the retractable camera module 100 ranges from 13mm to 17mm. , preferably 14 to 16 mm; in a non-working state, the optical back focus value of the retractable camera module 100 ranges from 1 mm to 3 mm, preferably 1.5 mm to 2.5 mm.

In addition, when in the working state, the mechanical back focus of the retractable camera module 100 is the largest, and when the retractable camera module 100 is in the non-working state, the mechanical back focus of the retractable camera module 100 is the smallest. Here, the mechanical back focus of the retractable camera module 100 represents the distance from the cut plane of the lower surface of the last optical lens 22 in the optical lens 20 to the image plane. The value of the mechanism back focus is relatively close to the optical back focus value of the retractable camera module 100 , and is basically reduced by about 0.5 mm on the basis of the optical back focus value.

In addition, it should be understood that when the retractable camera module 100 is in a working state, the retractable sleeve assembly 33 is driven to be extended upward in a direction away from the photosensitive chip 12. At this time, the The overall height dimension of the telescopic sleeve assembly 33 gradually increases, and accordingly, when the telescopic sleeve assembly 33 is fully extended, the overall height dimension of the telescopic sleeve assembly 33 reaches a maximum value. Correspondingly, when the retractable camera module 100 is in a non-working state, the retractable sleeve assembly 33 is driven to be retracted downward in a direction close to the photosensitive chip 12 . The overall height dimension of the telescopic sleeve assembly 33 gradually decreases, and accordingly, when the telescopic sleeve assembly 33 is fully retracted, the overall height dimension of the telescopic sleeve assembly reaches a minimum value. Specifically, in the embodiment of the present application, the minimum height dimension of the telescopic sleeve assembly 33 ranges from 6 mm to 9 mm, and the maximum height dimension of the telescopic sleeve assembly 33 ranges from 18.6 mm to 28.6 mm.

Further, as shown in FIGS. 1 to 3 , in a specific example of the present application, the telescopic sleeve assembly 33 has a multi-section structure. Specifically, the telescopic sleeve assembly 33 includes multiple sections that are mutually extendable. Articulating sleeve unit. The multi-section sleeves can interact with each other, so as to be able to extend relative to the photosensitive chip 12 or to retract relative to the photosensitive chip 12 after being driven by the driving assembly 31 . Here, the multi-segment sleeve units can interact with each other, which means that there is force transmission or direct contact between the multi-segment sleeve units. Preferably, in the embodiment of the present application, two adjacent sleeve units in the multi-segment sleeve units are movably connected to each other, for example, they are arranged in an inner and outer nesting manner and passed through a guide. The grooves are movably connected to each other to form the telescopic sleeve assembly 33, as shown in Figures 1 to 3 .

In the example illustrated in FIG. 1 to FIG. 3 , the driving assembly 31 includes a plurality of driving elements 311 , so as to drive each of the sleeve units to move separately through the driving elements. For example, in the example shown in FIGS. 1 to 3 , the telescopic sleeve assembly 33 includes a first sleeve unit 334 , a second sleeve unit 335 and a third sleeve unit that are nested inside and outside of each other. The body 336, that is, in this example, the telescopic sleeve assembly 33 having a three-section sleeve unit is exemplified. Correspondingly, in this example, the driving assembly 31 includes two driving elements: a first driving element 311 and a second driving element 312, wherein the first driving element 311 is used to drive the second sleeve unit The body 335 moves linearly up or down relative to the third sleeve unit 336, and the second drive element 312 is used to drive the first sleeve unit 334 relative to the second sleeve unit 335 moves linearly up or down.

More specifically, in this example, the second sleeve unit 335 includes a peripheral wall and a bottom wall extending inwardly from the peripheral wall, wherein the second driving element 312 is disposed on the second sleeve The bottom wall of the cell 335 is configured to drive the first sleeve cell 334 to linearly move upward or downward relative to the second sleeve cell 335 . The third sleeve unit 336 includes a peripheral wall and a bottom wall extending inward from the peripheral wall, wherein the first driving element 311 is disposed on the bottom wall of the third sleeve unit 336 and is configured to drive the second sleeve unit 335 to linearly move upward or downward relative to the third sleeve unit 336 .

In particular, in this example, the first drive element 311 and the second drive element 312 are implemented as piezoelectric actuators. Compared with traditional electromagnetic motors and memory alloy motors, the piezoelectric actuator can provide a relatively large driving force, and specifically, the piezoelectric actuator can provide a driving force in the range of 0.6N to 2N , which is sufficient to drive components weighing more than 100 mg.

In addition to being able to provide a relatively large driving force, the piezoelectric actuator also has other advantages compared to traditional electromagnetic motor solutions and memory alloy motor solutions, including but not limited to: relatively small size (with thin Long shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc. The piezoelectric actuator utilizes the friction force and inertia during vibration to push the object to be pushed to perform micron-scale motion in a frictional contact manner. Compared with the electromagnetic scheme, the non-contact way to drive the object to be pushed needs to be offset by electromagnetic force. The method of gravity and friction has the advantages of greater thrust, greater displacement and lower power consumption, and at the same time, the control precision is higher, and high-precision continuous zoom can be achieved. Moreover, when there are multiple motor mechanisms, the piezoelectric actuator does not have a magnet coil structure, so there is no problem of magnetic interference. In addition, the piezoelectric actuator can be self-locked by the friction between the components, so the abnormal shaking noise of the retractable camera module during focusing can be reduced.

It should be understood that the control accuracy of the telescopic sleeve assembly 33 can be improved by driving the sleeve unit by a piezoelectric actuator, that is, the distance between the optical lens and the photosensitive chip can be regulated. can be more precise.

Of course, in other examples of the present application, the drive assembly 31 can also drive the telescopic sleeve assembly 33 in other ways. For example, the drive assembly 31 includes a telescopic frame and a drive element, so as to be driven by the drive element The telescopic frame is used to drive each segment of the telescopic sleeve assembly 33 , which is not limited by the present application.

It should be understood that no matter how the driving assembly 31 drives the telescopic sleeve assembly 33, when the telescopic sleeve assembly 33 has a multi-section structure, in order to enable the telescopic sleeve assembly 33 to To perform telescopic, a preset gap needs to be configured between every two of the multi-segment sleeve units to provide space for the two to move. That is, a certain clearance must be reserved for the telescopic sleeve assembly 33 when designing the telescopic sleeve assembly 33 . However, when configuring the gap, many technical problems and technical contradictions are encountered.

On the one hand, if the clearance is too small, it will lead to the situation that the assembly is not in place due to interference when assembling and forming the telescopic sleeve assembly. In addition, a certain smooth transition needs to be ensured between each two sections of the sleeve monomers. If the gap between the two adjacent sleeve monomers is too small, the friction force between the two will be too large ( The frictional force forms resistance), thereby affecting the linearity, smoothness and balance of the expansion and contraction of the telescopic sleeve assembly 33 .

On the other hand, if the gap between the two adjacent sleeve units is larger, the external dirt, such as dust, dust, etc., will enter the inside of the module along the gap. If the dirt entering the inside reaches the photosensitive area of the photosensitive chip, it will cause poor imaging.

That is, in the embodiment of the present application, the parameter configuration of the gap between the sleeve monomers in every two segments forms a technical contradiction, which is neither too large nor too small. In addition, the inventor of the present application also tried to take a moderate value, but the telescopic performance of the telescopic sleeve assembly 33 could not well meet the technical requirements even when the moderate value was tested.

In view of the above technical contradictions and technical problems, the technical idea of the present application is to configure a gap of sufficient size between each two adjacent sleeve units on the one hand to meet the activity requirements of the two, on the other hand, in the gap A dust-proof mechanism is provided inside to prevent external dirt such as dust from entering the interior of the camera module from the gap.

Specifically, in the embodiment of the present application, the retractable camera module 100 further includes a dust-proof device disposed between at least a pair of adjacent two sleeve monomers among the at least two sleeve monomers. Structure 35. For the convenience of description and understanding, the dustproof structure 35 is described by taking the example that the dustproof structure 35 is provided on the first sleeve unit 334 and the second sleeve unit 335 as an example. It should be understood that in other examples of the present application, the dustproof structure 35 may also be set at other positions, for example, between the second sleeve unit 335 and the third sleeve unit 336, Therefore, it is not limited by this application.

As shown in FIG. 4 , in the embodiment of the present application, a gap 330 is formed between the outer side wall of the first sleeve unit 334 and the inner side wall of the second sleeve unit 335 , and the dustproof structure 35 includes dust trapping elements 351 formed in the gap 330 .

Quantitatively, the width of the gap 330 ranges from 0.05mm to 0.3mm, while the diameter of common dust and other particles in daily life is about 0.0001mm to 0.01mm, that is, most of the dirt may pass through the gap 330 goes inside the module. Correspondingly, by arranging the dust catching element 351 in the gap 330, the dirt can be caught by the dust catching element 351 when entering the inside of the module through the gap 330, so as to reduce the dirt entering the module internal volume.

In an example of the present application, the surface of the dust collecting element 351 has stickiness, so as to adhere to the dirt that wants to enter the interior of the module through the gap 330 through this property. For example, in a specific example, the dust-catching element 351 can be implemented as a layer of glue film with a thickness of 20 μm to 50 μm, wherein the glue film has a certain viscosity on its surface after curing, so, Can capture tiny particles.

Further, in the example shown in FIG. 4 , the dust collecting element 351 is formed around the outer side wall of the first sleeve unit 334 . Of course, in other examples of the present application, the dust-catching element 351 may also be formed around the inner sidewall of the second sleeve unit 335 , which is not limited by the present application. It is also worth mentioning that in other examples of the present application, the shape of the dust-catching element 351 can also be adjusted, for example, it can only surround a part of the outer side wall of the first sleeve unit 334, or , which only surrounds a part of the inner side wall of the second sleeve unit 335 , which is also not limited by the present application.

It should be noted that in the example shown in FIG. 4 , the dust collecting element 351 does not fill the gap 330 , that is, the dust collecting element 351 and the inner side of the second sleeve unit 335 There is still space between the walls. In order to further improve the dust-proof effect, in another specific example of the present application, the dust-proof structure 35 further includes a plurality of protrusions 352 protrudingly extending from the dust-catching element 351, as shown in FIG. 5 .

In a specific example of the present application, the plurality of protrusions 352 are distributed in rows on the inner side of the second sleeve unit 335 , as shown in FIG. 6 . Moreover, preferably, in the rows formed by the plurality of bumps 352, at least two adjacent rows of the bumps 352 are arranged in a staggered manner, which can reduce the probability of external dirt entering the interior of the module, as shown in FIG. 8A . More preferably, the rows formed by the plurality of bumps 352 have a relatively high arrangement density, and the bumps 352 are arranged staggered in every two adjacent rows, as shown in FIG. 7 , so as to further reduce external contamination. The probability of getting inside the module is shown in Figure 8B.

Comparing FIGS. 8A and 8B, it can be seen that when the arrangement density of the rows formed by the plurality of bumps 352 is higher, the path of the external dirt entering the inside of the module is more tortuous, that is, the possibility of entering the inside of the module is more tortuous. lower.

In particular, in a specific example of the present application, the free ends of at least some of the protrusions 352 of the plurality of protrusions 352 abut against the inner sidewall of the second sleeve unit 335, as shown in FIG. 5 , also That is, the protrusions 352 are in frictional contact with the inner sidewall of the second sleeve unit 335 . Thus, in these examples, the bumps 352 may also be defined as frictional contact bumps.

As shown in FIG. 5 , in this example, on the one hand, the plurality of protrusions 352 make frictional contact between the first sleeve unit 334 and the second sleeve unit 335 , so that the The first sleeve unit 334 and the second sleeve unit 335 provide a certain resistance when moving (however, because the plurality of protrusions 352 do not completely cover the entire second sleeve unit 335 Therefore, the resistance is not particularly large), so as to improve the smoothness and balance of the movement between the first sleeve unit 334 and the second sleeve unit 335 .

Preferably, in this example, the plurality of projections 352 are symmetrically arranged on the outside of the first sleeve unit 334 relative to the axis set by the telescopic sleeve assembly 33 . In this way, when the first sleeve unit 334 expands and contracts relative to the second sleeve unit 335 under the action of the piezoelectric actuator, the plurality of protrusions 352 can provide symmetry and balance in all directions resistance, so as to improve the straightness of the expansion and contraction of the first sleeve unit 334, that is, the first sleeve unit 334 can move linearly relative to the second sleeve unit 335 without Tilt, as shown in Figure 9. That is, in some embodiments of the present application, the dustproof mechanism can also guide the movement between two adjacent sleeve units, so as to make the movement between the two adjacent sleeve units smoother. and balanced.

More preferably, in this example, the protruding block 352 has a certain elasticity, so that the protruding block 352 can further enhance the linearity of the movement of the first sleeve unit 334. The reasons are: When the first sleeve unit 334 and the second sleeve unit 335 move, the plurality of projections are arranged between the first sleeve unit 334 and the second sleeve unit 335 352 will deform in a plane perpendicular to the optical axis, so it can provide a vertical support force with the inner sidewall of the first sleeve unit 334, as shown in FIG. 9, thereby improving the first sleeve. The straightness of the expansion and contraction of the cell 334 .

In a specific implementation, the protrusions 352 integrally and protrudely extend from the dust-catching element 351 . For example, when the dust-catching element 351 is implemented as an adhesive, the protrusions 352 can also pass through the adhesive. solidified. Of course, in other examples of the present application, the bump 352 and the dust collecting element 351 may not have an integral structure, that is, the bump 352 and the dust collecting element 351 are relatively independent components. In addition, in the above example, although the protrusion 352 is cylindrical as an example, its shape is not limited by the present application, for example, it can be implemented as a quadrangular prism or the like.

It is worth mentioning that when the dust-catching element 351 is formed on the inner sidewall of the second sleeve unit 335, in this example, the dust-proof structure 35 may further include a protruding extension from the dust-catching element 351. The plurality of protrusions 352 of the dust element 351 , at least some of the protrusions 352 of the plurality of protrusions 352 have their free ends abutting against the outer sidewall of the first sleeve unit 334 . Moreover, the plurality of bumps 352 can still be configured with the above-mentioned conditions, which will not be repeated here.

In order to further improve the dustproof effect of the telescopic sleeve assembly 33 , in another specific example of the present application, the dustproof structure 35 further includes a bottom wall disposed on the second sleeve unit 335 And corresponding to the buffer member 353 of the lower peripheral edge of the first sleeve unit 334 , as shown in FIG. 10 , the outer surface of the buffer member 353 is viscous. Correspondingly, when external dirt falls to the bottom wall of the second sleeve unit 335 along the gap 330 between the first sleeve unit 334 and the second sleeve unit 335, the The buffer member 353 can capture the dirt and prevent it from further entering the interior of the module.

In particular, in the embodiment of the present application, the space between the first sleeve unit 334 and the second sleeve unit 335 includes a lateral space therebetween and a longitudinal space therebetween, Here, the lateral space between the two represents the gap 330 between the first sleeve unit 334 and the second sleeve unit 335, and the longitudinal space between the two represents the first sleeve unit The space set by the lower peripheral edge of the body 334 and the lower edge of the second sleeve unit 335 . Therefore, in the example shown in FIG. 10 , the buffer member 353 of the dustproof structure 35 is still located between the first sleeve unit 334 and the second sleeve unit 335 .

It should be noted that, in the example shown in FIG. 10 , the buffer member 353 is disposed on the bottom wall of the second sleeve unit 335 and corresponds to the lower peripheral edge of the first sleeve unit 334 , In this way, when the first sleeve unit 334 is retracted, the buffer member 353 can avoid the contact between the lower peripheral edge of the first sleeve unit 334 and the bottom wall of the second sleeve unit 335 unnecessary collisions occur. That is, in the embodiment of the present application, the buffer member 353 not only has the effect of dust prevention, but also has the effect of buffering and absorbing shock. In addition, if the first sleeve unit 334 collides with the second sleeve unit 335 to generate debris, the buffer member 353 can also absorb the debris to prevent it from entering the interior of the module.

In a specific embodiment of this example, the buffer member 353 is also formed by curing an adhesive, wherein the thickness dimension of the buffer member 353 after curing and molding is 20 μm to 50 μm.

In order to improve the dustproof effect and the shock absorption effect of the buffer member 353, preferably, in this example, the buffer member 353 has a symmetrical structure with respect to the axis set by the second sleeve unit 335, for example , in an example, the buffer member 353 has an annular structure, as shown in FIG. 11 .

In order to solve the problem that stray light affects imaging, in some examples of the present application, the retractable camera module 100 further includes an upper end portion that is retractably extended to the photosensitive chip 12 and the retractable sleeve assembly 33 There is a guide sleeve 40 therebetween, and the guide sleeve 40 has a through hole corresponding to the optical lens 20 and the photosensitive chip 12 , as shown in FIG. 12 . It should be understood that the guide sleeve 40 disposed between the optical lens 20 and the photosensitive chip 12 can be designed by its own shape and size, on the one hand to constrain the imaging light from the optical lens 20, and on the other hand In one aspect, stray light from outside the conduction sleeve is isolated from entering the photosensitive chip 12 .

In order to more effectively isolate the influence of external stray light, preferably, the inner wall of the through hole is preferably made of a material with a reflectivity of less than or equal to 5%. Equal to 5% material.

As shown in FIG. 12 , in this example, one end of the guide sleeve 40 is fixed to the upper end of the telescopic sleeve assembly 33 , and the other end of the guide sleeve 40 is fixed above the photosensitive chip 12 (for example, fixed on the bracket 13 ), wherein, when in the first state, the retractable sleeve assembly 33 is driven to move upward relative to the photosensitive chip 12 to drive the guide sleeve 40 relative to the photosensitive chip 12 is elongated upward; when in the second state, the retractable sleeve assembly 33 is driven to be moved downward relative to the photosensitive chip 12 to drive the guide sleeve 40 to be moved relative to the photosensitive chip 12 Shorten down. That is, in this specific example, the conducting sleeve is capable of telescopic movement along with the telescopic sleeve assembly 33 .

In order to ensure that enough imaging light enters the photosensitive chip 12, in the embodiment of the present application, preferably, the inner diameter of the guide sleeve 40 gradually increases from top to bottom, and the lower part of the guide sleeve 40 The end face covers the photosensitive area of the photosensitive chip 12 in the projection area of the photosensitive chip 12 . That is, the lower end surface of the guide sleeve 40 can completely cover the photosensitive area of the photosensitive chip 12, so that the imaging light entering the photosensitive chip 12 through the guide sleeve 40 can completely cover the photosensitive area The imaging area of the chip 12 .

It should be noted that in the example shown in FIG. 12 , the guide sleeve 40 also has a multi-section structure. Correspondingly, in order to further improve the dustproof effect of the retractable camera module 100 , any The guide sleeve 40 is also provided with the dustproof structure 35 as described above. That is, in this example, the guide sleeve 40 includes at least two guide sleeve units nested with each other and at least one pair of the guide sleeve units disposed in the at least two guide sleeve units The dustproof structure 35 in between.

In short, the dustproof structure 35 configured for the guide sleeve 40 may also include dust-catching elements 351 and/or bumps 352 and/or buffers disposed between two adjacent guide sleeve units The component 353 is consistent with the embodiment of how to configure the telescopic sleeve assembly 33, so it will not be repeated here.

To sum up, based on the retractable camera module 100 according to the embodiment of the present application, it is clarified that the optical lens of the retractable camera module 100 is retractable relative to its photosensitive chip to switch between the working state and the non-working state, wherein , in the working state, the optical lens is extended relative to the photosensitive chip for imaging, and in the non-working state, the optical lens is retracted relative to the photosensitive chip to reduce the overall height dimension of the retractable camera module 100 In this way, the technical contradiction between the overall height size and the larger effective focal length of the traditional vertical camera module is solved. The retractable camera module 100 includes a retractable sleeve assembly 33 for carrying the optical lens for telescopic motion relative to the photosensitive chip. In particular, the retractable sleeve assembly 33 has a dustproof structure 35 for preventing dust and other contaminants from entering the interior of the camera module from the gap 330 of the retractable sleeve assembly 33 .

It is worth mentioning that although the dustproof structure 35 is described in detail by taking the example that the dustproof structure 35 is disposed on the telescopic sleeve assembly 33, and it is briefly described that the dustproof structure 35 can also be configured inside the guide sleeve 40 . However, those of ordinary skill in the art should understand that, in other examples of the present application, the dustproof structure 35 may also be configured only in the conducting sleeve, which is not limited by the present application.

Exemplary Electronics

According to another aspect of the present application, an electronic device is also provided.

13 illustrates a schematic diagram of an electronic device according to an embodiment of the present application. As shown in FIG. 13 , the electronic device 200 according to the embodiment of the present application includes an electronic device body 210 and the above-mentioned retractable camera module 100 assembled in the electronic device body 210 . In particular, the minimum height dimension of the retractable sleeve assembly 33 is less than or equal to the thickness dimension of the electronic device 200 .

In a specific implementation, the retractable camera module 100 can be deployed on the back of the electronic device body 210 to be used as a rear camera module. Of course, it can also be set as the front of the electronic device body 210 to be applied as a front camera module. The specific installation position of the retractable camera module 100 on the electronic device body 210 is not limited by this application.

In particular, compared with the conventional vertical camera module, the retractable camera module 100 can extend its optical lens 20 in its working state to increase its total optical length until it meets the shooting requirements.

FIG. 14 illustrates another schematic diagram of an electronic device 200 according to an embodiment of the present application. As shown in FIG. 13 , the electronic device 200 according to the embodiment of the present application includes an electronic device body 210 , the above-mentioned retractable camera module 100 assembled in the electronic device body 210 , and assembled in the electronic device body 210 . The second camera module 220 of the electronic device body 210 . In particular, compared with the retractable camera module 100 , the second camera module 220 has a relatively smaller effective focal length.

That is, in the electronic device 200 shown in FIG. 14 , the electronic device 200 is configured with a multi-camera camera module, that is, the retractable camera module 100 and the existing short-focus camera module are applied together as an image sensor of the electronic device 200 . During operation, the retractable camera module 100 and the second camera module 220 can cooperate with each other to provide more abundant imaging functions.

FIG. 15 illustrates another schematic view of the electronic device 200 illustrated in FIG. 14 . As shown in FIG. 15 , in the work process, the retractable camera module 100 can extend its optical lens 20 to increase its total optical length until it meets the shooting requirements.

It should be understood by those skilled in the art that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may be modified or modified in any way without departing from the principles.

Claims (32)

1. A retractable camera module, comprising:

   A photosensitive assembly, comprising: a circuit board and the photosensitive chip are electrically connected to the circuit board;

   retractable sleeve assembly;

   an optical lens, the optical lens is installed in the retractable sleeve assembly to be held on the photosensitive path of the photosensitive chip; and

   A drive assembly for driving the telescopic sleeve assembly to perform telescopic motion relative to the photosensitive chip;

   Wherein, through the telescopic sleeve assembly and the driving assembly, the optical lens is adapted to move telescopically relative to the photosensitive chip to switch between the first state and the second state, wherein when in the first state In a state, the retractable sleeve assembly is driven to move upward relative to the photosensitive chip to drive the optical lens to move upward relative to the photosensitive chip, so as to increase the distance between the optical lens and the photosensitive chip ; When in the second state, the retractable sleeve assembly is driven to move downward relative to the photosensitive chip to drive the optical lens to move downward relative to the photosensitive chip to reduce the size of the optical lens the distance from the photosensitive chip;

   Wherein, the retractable sleeve assembly includes at least two sleeve units nested with each other and a dustproof structure disposed between at least a pair of adjacent two sleeve units among the at least two sleeve units .
2. The retractable camera module according to claim 1, wherein the at least two sleeve units include a first sleeve unit and a second sleeve unit nested inside and outside, and the dustproof structure is provided between the first sleeve unit and the second sleeve unit.
3. The retractable camera module according to claim 2, wherein a gap is formed between the outer side wall of the first sleeve unit and the inner side wall of the second sleeve unit, and the dustproof structure A dust trapping element formed in the gap is included.
4. The retractable camera module according to claim 3, wherein the surface of the dust-catching element has stickiness.
5. The retractable camera module according to claim 4, wherein the dust-catching element is made of adhesive.
6. The retractable camera module according to claim 5, wherein the dust-catching element is formed on the outer sidewall of the first sleeve unit in a surrounding manner.
7. The retractable camera module according to claim 5, wherein the dust-catching element is formed on the inner sidewall of the second sleeve unit in a surrounding manner.
8. The retractable camera module according to claim 6 or 7, wherein a size of the gap is 0.05 mm to 3 mm, and a thickness size of the dust collecting element is 20 μm to 50 μm.
9. The retractable camera module according to claim 6, wherein the dustproof structure further comprises a plurality of protrusions protrudingly extending from the dust collecting element, at least part of the protrusions of the plurality of protrusions The free end abuts against the inner sidewall of the second sleeve unit.
10. The retractable camera module according to claim 9, wherein the free end of the protruding block has a certain elasticity.
11. The retractable camera module of claim 9 , wherein the protrusions integrally and protrudely extend from the dust-catching element.
12. The retractable camera module according to claim 9, wherein the plurality of protrusions are symmetrically arranged on the outer side of the first sleeve unit relative to the axis set by the retractable sleeve assembly .
13. The retractable camera module according to claim 12, wherein the plurality of protrusions are distributed in a row on the outer side of the first sleeve unit.
14. The retractable camera module according to claim 13 , wherein in the rows formed by the plurality of bumps, at least two adjacent rows of the bumps are arranged in a staggered manner.
15. The retractable camera module according to claim 6, wherein the dustproof structure further comprises a plurality of protrusions protrudingly extending from the dust collecting element, at least part of the protrusions of the plurality of protrusions The free end abuts against the outer sidewall of the first sleeve unit.
16. The retractable camera module according to claim 15, wherein the free end of the protruding block has a certain elasticity.
17. The retractable camera module of claim 16 , wherein the protrusion integrally and protrudingly extends from the dust-catching element.
18. The retractable camera module according to claim 15, wherein the plurality of protrusions are symmetrically arranged on the inner side of the second sleeve unit relative to the axis set by the retractable sleeve assembly .
19. The retractable camera module according to claim 18 , wherein the plurality of protrusions are distributed in a row on the inner side of the second sleeve unit.
20. The retractable camera module according to claim 19 , wherein in the rows formed by the plurality of bumps, at least two adjacent rows of the bumps are arranged in a staggered manner.
21. The retractable camera module according to claim 6 or 15, wherein the second sleeve unit comprises a peripheral wall forming the inner side wall and a bottom wall extending inward from the peripheral wall, wherein the The dustproof structure further includes a buffer member disposed on the bottom wall and corresponding to the lower peripheral edge of the first sleeve unit, the buffer member being configured to prevent the lower peripheral edge of the first sleeve unit from contacting the lower peripheral edge of the first sleeve unit. The bottom wall of the second sleeve unit touches.
22. The retractable camera module according to claim 21 , wherein the outer surface of the buffer has adhesiveness.
23. The retractable camera module of claim 22, wherein the buffer member is formed of an adhesive.
24. The retractable camera module according to claim 21 , wherein the buffer member has a thickness of 20 μm to 50 μm.
25. The retractable camera module of claim 23, wherein the buffer member has an annular structure.
26. The retractable camera module of claim 1 , wherein the retractable sleeve assembly has a lower end portion and an upper end portion opposite to the lower end portion, and the optical lens is mounted on the retractable sleeve the upper end of .
27. The retractable camera module according to claim 1, further comprising a guide sleeve retractably extending between the photosensitive chip and the upper end of the retractable sleeve assembly, the guide sleeve having a corresponding through holes in the optical lens and the photosensitive chip.
28. The retractable camera module according to claim 27, wherein one end of the guide sleeve is fixed on the upper end of the retractable sleeve assembly, and the other end is fixed above the photosensitive chip.
29. The retractable camera module according to claim 28, wherein the photosensitive component further comprises a base disposed on the circuit board, the base has a light-transmitting area corresponding to at least a photosensitive area of the photosensitive chip A hole, wherein the other end of the conducting sleeve is fixed above the photosensitive chip in a manner of being disposed on the base.
30. The retractable camera module according to claim 27, wherein the inner diameter of the guide sleeve gradually increases from top to bottom.
31. The retractable camera module according to claim 27, wherein the guide sleeve comprises at least two guide sleeve units nested with each other and at least one pair disposed in the at least two guide sleeve units The dustproof structure between the single guide sleeves.
32. An electronic device, comprising: the retractable camera module according to any one of claims 1 to 31.

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