CN109597264A

CN109597264A - Camera mould group and its manufacturing method

Info

Publication number: CN109597264A
Application number: CN201811528818.5A
Authority: CN
Inventors: 黄庆跃; 徐爱新; 许杨柳; 邓爱国; 颜欢欢
Original assignee: Kunshan Q Technology Co Ltd
Current assignee: Kunshan Q Technology Co Ltd
Priority date: 2018-12-13
Filing date: 2018-12-13
Publication date: 2019-04-09
Anticipated expiration: 2038-12-13
Also published as: CN109597264B

Abstract

The present invention discloses a kind of camera mould group and its manufacturing method, which includes: pedestal；Camera lens is equipped with lens set in camera lens including pedestal and the lens barrel for being fixed on pedestal；Coil block is fixedly connected on pedestal；Lower spring is set between pedestal and camera lens, and lower spring is electrically connected with pedestal and coil block respectively；Shell, hollow to form accommodating cavity, camera lens is at least partially housed in accommodating cavity；Magnet, in the accommodating cavity of shell, and magnet corresponds to coil block and sets.Camera mould group and its manufacturing method provided by the invention, by camera lens direct-assembling in the camera mould group on pedestal, forming integral structure, can will be sized for smaller by the way that directly coil block is assembled on camera lens.

Description

Camera module and manufacturing method thereof

Technical Field

The invention relates to the technical field of imaging, in particular to a camera module and a manufacturing method thereof.

Background

At present, various electronic products, such as portable electronic products like mobile phones, cameras, tablet computers, etc., have increasingly thinner thicknesses, higher screen occupation ratios, and higher pixels, and thus, smaller and thinner requirements are also put forward on camera modules. Although the fixed-focus camera module has a small size, the focusing distance is limited, and the requirement of people on high pixels cannot be met. The zoom camera module has a larger thickness due to the higher and higher pixels, and the thickness of the electronic product is thinner and thinner, so that the camera module protrudes from the surface of the electronic product, which seriously affects the appearance of the electronic product.

Generally, a camera module includes a lens and a motor, the lens is assembled in a lens factory, the motor is assembled in a motor factory, and finally the lens and the motor are assembled together in the module factory to form the camera module. Therefore, the lens and the motor are independent components, and a certain space needs to be reserved as an assembly gap for later assembly, which results in a large size of the whole camera module and a complex structure and a complex processing technology.

The foregoing description is provided for general background information and is not admitted to be prior art.

Disclosure of Invention

The invention aims to provide a camera module with smaller size and a manufacturing method thereof.

The invention provides a camera module, comprising:

a base;

the lens comprises a base and a lens barrel fixed on the base, and a lens group is arranged in the lens;

the coil assembly is fixedly connected to the base;

the lower spring is arranged between the base and the lens and is respectively and electrically connected with the base and the coil assembly;

the shell is hollow so as to form an accommodating cavity, and the lens is at least partially accommodated in the accommodating cavity;

the magnet is arranged in the accommodating cavity of the shell and corresponds to the coil assembly.

Further, the base includes a main body portion and a conductive portion, the conductive portion is embedded in the main body portion, and the conductive portion is electrically connected to the lower spring.

Furthermore, the number of the coil assemblies is two, the two coil assemblies are respectively arranged on two opposite sides of the base of the lens, and the number of the magnets is two, the two magnets are respectively arranged on two opposite sides of the shell and respectively correspond to the two coil assemblies.

Furthermore, the lower spring comprises a first lower spring and two second lower springs, two ends of the first lower spring are respectively and electrically connected with one ends of the two coils, one ends of the two second lower springs are respectively and electrically connected with the other ends of the two coils, the conductive part of the base comprises two parts, and the two parts of the conductive part are respectively and electrically connected with the other ends of the two second lower springs.

Further, the first lower spring and the second lower spring both comprise an outer side portion, an inner side portion and a connecting portion for connecting the outer side portion and the inner side portion, the outer side portion is electrically connected with the conductive portion of the base, the inner side portion is electrically connected with the coil, a plurality of connecting points arranged at intervals are arranged on the inner side portion, and the connecting points are electrically connected with the coil.

Furthermore, the coil assembly comprises a bracket and a coil, the coil is wound on the bracket, and the bracket is fixedly connected to the base of the lens; or the coil assembly comprises a coil of a flexible circuit board structure.

Further, the coil assembly comprises a coil surrounding the lens, and the magnets are arranged on two opposite sides of the shell; the lower springs are two, the conductive part of the base comprises two parts, and the two lower springs are respectively and electrically connected with two ends of the coil and the two parts of the conductive part.

Furthermore, the camera module further comprises an upper spring which is arranged in the accommodating cavity of the shell, and the upper spring is fixedly connected to the shell and the base respectively; the upper spring comprises an outer frame, an inner frame and a connector for connecting the outer frame with the inner frame, the outer frame is fixedly connected with the shell, the inner frame is fixedly connected with the base of the lens, a plurality of connecting positions arranged at intervals are arranged on the inner frame, and the connecting positions are connected with the base.

Furthermore, the camera module further comprises a supporting seat and a circuit board, wherein an accommodating cavity is formed in the supporting seat, an imaging chip and an optical filter are arranged in the accommodating cavity, and the imaging chip corresponds to the optical filter in position and is arranged on an optical axis of the lens; the base is arranged at the top of the supporting seat, the circuit board is arranged on one side of the supporting seat far away from the base, the imaging chip is fixed and electrically connected to the circuit board, and the circuit board is also provided with a connector; the base is electrically connected to the circuit board.

Furthermore, the circuit board is arranged at the bottom of the supporting seat, and the top surface of the circuit board is connected with the bottom of the supporting seat; or, the top of the circuit board is provided with a recess, and the support seat is at least partially accommodated in the recess.

The invention also provides a camera module manufacturing method, which comprises the following steps:

providing a coil assembly comprising a coil;

providing a lens, and fixedly connecting the coil assembly to the lens;

providing a lower spring electrically connecting the lower spring to the coil of the coil assembly;

providing a base, and assembling the lens, the coil assembly and the lower spring which are assembled together to the base;

providing a shell and a magnet, arranging the magnet in the shell, and enabling the magnet to be arranged corresponding to the coil assembly;

assembling the assembled housing and the magnet together with the assembled lens, the coil block, the base, and the lower spring.

Further, the camera module manufacturing method further includes, after the step of assembling the assembled housing, the magnet, and the upper spring together with the assembled lens, the coil block, the chassis, and the lower spring together: providing a supporting seat and a circuit board, arranging an imaging chip and an optical filter in the supporting seat, fixedly connecting the base to the supporting seat, fixing the circuit board on one side far away from the base, and electrically connecting the imaging chip and the base to the circuit board.

According to the camera module and the manufacturing method thereof provided by the invention, the coil assembly is directly assembled on the lens, and the lens is directly assembled on the base to form the camera module with an integrated structure.

Drawings

Fig. 1 is a schematic view of an assembly structure of a camera module according to an embodiment of the invention.

Fig. 2 is an exploded view of the camera module shown in fig. 1.

Fig. 3 is a first schematic cross-sectional view of the camera module shown in fig. 1.

Fig. 4 is a second schematic cross-sectional view of the camera module shown in fig. 1.

Fig. 5 is a schematic view of an assembly structure of a camera module according to another embodiment of the invention.

Fig. 6 is a schematic view of a lower spring structure of the camera module shown in fig. 1.

Fig. 7 is a schematic plan view of a part of a camera module according to another embodiment of the invention.

Fig. 8 is a schematic perspective view of the camera module shown in fig. 7.

Fig. 9 is a schematic plan view of a part of a camera module according to still another embodiment of the invention.

Fig. 10 is a schematic perspective view of the camera module shown in fig. 9.

Fig. 11 is a flowchart illustrating a method for manufacturing a camera module according to an embodiment of the invention.

Fig. 12 is a schematic structural diagram of the coil assembly in step S11 in fig. 11 before assembly.

Fig. 13 is a structural diagram of the coil assembly in step S11 in fig. 11 after assembly.

Fig. 14 is a schematic structural diagram of the coil assembly and the lens assembly before assembly in step S13 in fig. 11.

Fig. 15 is a structural schematic diagram of the coil assembly and the lens assembly in step S13 in fig. 11 after assembly.

Fig. 16 is a schematic structural view of the lower spring, the lens and the coil assembly before assembly in step S15 of fig. 11.

Fig. 17 is a structural schematic diagram of the assembled lower spring, lens and coil assembly in step S15 in fig. 11.

Fig. 18 is a structural schematic diagram of the base, the lower spring lens and the coil assembly in step S17 in fig. 11 after being assembled.

Fig. 19 is a schematic structural view of the housing, the magnet and the upper spring before assembly in step S19 in fig. 11.

Fig. 20 is a structural schematic diagram of the assembled housing, magnet and upper spring in step S19 in fig. 11.

Fig. 21 is a schematic structural diagram of the assembled lower spring and lens, coil assembly and assembled housing, magnet and upper spring in step S21 of fig. 11 before assembly.

Fig. 22 is a schematic structural diagram of the assembled lower spring and lens, coil assembly and assembled housing, magnet and upper spring in step S21 in fig. 11 after assembly.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 4, a camera module according to a first embodiment of the present invention includes a supporting base 11, a circuit board 13, a base 15, a lens 17, a coil assembly 18, a lower spring 21, a housing 23, a magnet 24, and an upper spring 25.

An accommodating cavity is formed in the supporting seat 11, an imaging chip 29 and an optical filter 31 are arranged in the accommodating cavity, and the imaging chip 29 corresponds to the optical filter 31 in position and is arranged on an optical axis of the lens 17. The inner wall of the supporting base 11 is provided with a boss 112, the optical filter 31 is disposed on the boss 112, and the imaging chip 29 and the optical filter 31 are respectively disposed on two sides of the boss 112, which is not limited to this, and in other embodiments, the imaging chip 29 and the optical filter 31 may also be disposed on the same side of the boss 112.

The circuit board 13 is disposed at the bottom of the supporting base 11, and the imaging chip 29 is fixed and electrically connected to the circuit board 13. The circuit board 13 is also provided with a connector 33 to transmit signals between the external circuit and the circuit board 13.

The base 15 is disposed on the top of the supporting base 11 and is provided with a first light-passing hole 152 corresponding to the imaging chip 29. In this embodiment, the base 15 includes a main body 154 and a conductive portion 156, the conductive portion 156 is embedded in the main body 154, and the conductive portion 156 is electrically connected to the circuit board 13. Specifically, the main body portion 154 and the conductive portion 156 are manufactured by insert molding (insert molding) process to form the base 15. The base 15 is formed by insert molding, which can enhance the strength of the base 15, and can make the size of the base 15 smaller, which is beneficial to the miniaturization of the camera module.

In another embodiment, as shown in fig. 5, the top of the circuit board 13 may also be recessed, and the supporting base 11 is at least partially accommodated in the recess. Thus, the size of the camera module in the thickness direction can be reduced, which is beneficial to the miniaturization of the camera module.

The lens 17 includes a base 172 and a lens barrel 174 fixed to the base 172, and a lens group 178 is disposed in the lens barrel 174. The base 172 defines a slot 176 (see fig. 14).

The coil assembly 18 includes a bracket 182 and a coil 184, the coil 184 being wound around the bracket 182. The bracket 182 is fixedly attached to the base 172 of the lens 17. In this embodiment, there are two coil assemblies 18, and the two coil assemblies 18 are respectively disposed on two opposite sides of the base 172 of the lens 17. By providing the coil assemblies 18 on two opposite sides of the base 172 of the lens 17, respectively, the size of the camera module in the directions of the other two opposite sides of the base 172 can be reduced. Specifically, two coil assemblies 18 are provided at the edges of two opposite sides of the base 172. The bracket 182 is provided with a buckle 186 (see fig. 14), and the buckle 186 extends into the slot 176 to be matched with the slot 176, so that the bracket 182 is connected with the base 172 more firmly. Meanwhile, the coil 184 is wound on the bracket 182 and then fixed to the lens 17 by using low temperature glue, so that the damage to the optical performance of the lens 17 can be reduced, and the quality of the camera module can be improved.

More specifically, referring to fig. 12, the bracket 182 includes a body 187 and a winding portion 188 formed at one side of the body 187, the winding portion 188 is elongated, and the coil 184 is wound on the winding portion 188. The bracket 182 may include a metal member and a plastic member that are coupled together by injection molding, etc., which may increase the stability of the bracket 182.

The lower spring 21 is provided between the base 15 and the lens 17, and the lower spring 21 is electrically connected to the conductive portion 156 of the base 15 and the coil 184, respectively, to conduct an electric current to the coil 184 to energize the coil 184. Specifically, as shown in fig. 6, the lower spring 21 includes a first lower spring and two second lower springs, two ends of the first lower spring are electrically connected to one ends of the two coils 184, one ends of the two second lower springs are electrically connected to the other ends of the two coils 184, and two portions of the conductive portion 156 of the base 15 are electrically connected to the other ends of the two second lower springs. Thus, current flows in from a part of the conductive portion 156, flows into a second lower spring from a connection with the second lower spring, flows into one coil 184, flows into the first lower spring, flows into the other coil 184, flows into the other second lower spring, and flows out to the conductive portion 156 through a connection between the other part of the conductive portion 156 and the other second lower spring, and the two conductive portions 156 are electrically connected to the positive and negative electrodes of the power supply, respectively, so that current can be applied to the two coils 184.

More specifically, each of the first and second lower springs includes an outer portion 212, an inner portion 214, and a connecting portion 216 connecting the outer portion 212 and the inner portion 214, the outer portion 212 forming an outer side of the lower spring 21, the inner portion 214 forming an inner side of the lower spring 21, the outer portion 212 being electrically connected to the conductive portion 156 of the base 15, and the inner portion 214 being electrically connected to the coil 184. In this embodiment, the inner portion 214 is provided with a plurality of connection points 218 arranged at intervals, and the connection points 218 and the coil 184 can be electrically connected by welding.

The housing 23 is hollow to form an accommodating cavity, and the bottom of the housing 23 is open and the top thereof is provided with a second light through hole 232. Specifically, the housing 23 may be an iron shell. A portion of the lens 17 is accommodated in the accommodating cavity, and a portion of the lens passes through the second light passing hole 232 and is exposed outside the housing 23.

The magnet 24 is disposed in the accommodating cavity of the housing 23, and the magnet 24 is disposed corresponding to the coil assembly 18. Specifically, two magnets 24 are provided, respectively, on two opposite sides of the housing 23, and are provided corresponding to the two coil assemblies 18, respectively. Since the magnets 24 are provided only on the two opposite sides of the housing 23, the other two of the housing 23 do not have the magnets 24 because the size of the camera module in the direction of the other two opposite sides of the housing 23 can be reduced.

The upper spring 25 is disposed in the accommodating cavity of the housing 23 and located at the top of the housing 23. Specifically, the upper spring 25 is connected to the lens 17 on the inner side and to the housing 23 on the outer side. The lower spring 15 has an inner end fixed to the lens 17 and an outer end connected to the base 15 fixed to the housing 23. Thus, when the coil 184 is energized, under the action of the magnet 24, a magnetic force can be generated to push the lens 17 to move linearly, so as to realize focusing on the lens, and the magnetic forces generated correspondingly are different according to the difference of the current magnitude in the coil 184. The upper spring 25 and the lower spring 21 are used for restraining the lens 17, so that the movement is smooth and a restoring function is realized. Of course, in other embodiments, the upper spring 25 may not be provided.

More specifically, the upper spring 25 includes an outer frame 252, an inner frame 254, and a connecting body 256 connecting the outer frame 252 and the inner frame 254, the outer frame 252 forms an outer side of the upper spring 25 to be fixedly connected to the housing 23, the inner frame 254 forms an inner side of the upper spring 25 to be fixedly connected to the base 172 of the lens 17, the inner frame 254 is provided with a plurality of connecting portions 258 disposed at intervals, and the connecting portions 258 can be connected to the base 172 by welding.

As shown in fig. 7 and 8, in the second embodiment, the structure of the camera module is substantially the same as that of the first embodiment, and the differences include: in this embodiment, the coil 184 may be a full turn around the lens 17, and the magnets 24 are also only disposed on opposite sides of the housing 23. Compared with the camera module of the first embodiment, the size of the coil 184 in one direction is slightly increased because the coil is arranged in one full turn. It will be appreciated that when the coil 184 is a full turn, only two lower springs 21 are required, and the two lower springs 21 are electrically connected to two ends of the coil 184, respectively, and to two portions of the conductive portion 156, respectively.

As shown in fig. 9 and 10, in the third embodiment, the structure of the camera module is substantially the same as that of the camera module of the first embodiment, and the differences include: in this embodiment, the coil 184 may be a flexible circuit board structure. Specifically, the coil 184 of the flexible circuit board structure is a conductive material formed on the circuit board by printing or the like one turn or a conductive material formed in a spiral shape.

According to the camera module, the coil assembly 18 is directly assembled on the lens 17, and the lens 17 is directly assembled on the base 15, so that the camera module with an integrated structure is formed.

The invention also provides a manufacturing method of the camera module. As shown in fig. 11, a method for manufacturing a camera module according to an embodiment includes the following steps:

s11, providing the coil assembly 18, the coil assembly 18 including the coil 184.

As shown in fig. 12 and 13, step S11 specifically includes:

s111, the bracket 182 and the coil 184 are provided. Specifically, the bracket 182 is provided with a latch 186. The bracket 182 includes a body 187 and a wire winding portion 188 formed at one side of the body 187, and the wire winding portion 188 has an elongated shape. The bracket 182 may include a metal member and a plastic member that are coupled together by injection molding, etc., which may increase the stability of the bracket 182.

S113, the coil 184 is wound around the holder 182. Specifically, the coil 184 is wound around the winding portion 188.

S13, providing the lens 17, and fixedly connecting the coil assembly 18 to the lens 17.

As shown in fig. 14 and 15, specifically, the lens 17 includes a base 172 and a lens barrel 174 fixed to the base 172, a lens group 178 is disposed in the lens barrel 174, and a slot 176 is disposed on the base 172. In step S13, the clip 186 is inserted into the clip groove 176 to make the clip 186 fit with the clip groove 176, so as to fixedly connect the bracket 182 of the coil assembly 18 to the base 172 of the lens 17, specifically, the bracket 182 and the base 172 can be fixed by low temperature glue (e.g., UV glue). In this embodiment, there are two coil assemblies 18, and the two coil assemblies 18 are respectively disposed on two opposite sides of the base 172 of the lens 17. By providing the coil assemblies 18 on two opposite sides of the base 172 of the lens 17, respectively, the size of the camera module in the directions of the other two opposite sides of the base 172 can be reduced. Specifically, two coil assemblies 18 are provided at the edges of two opposite sides of the base 172. By winding the coil 184 on the bracket 182 and fixing the coil to the lens 17 with low temperature glue, the damage to the optical performance of the lens 17 can be reduced, and the quality of the camera module can be improved.

S15, providing the lower spring 21, and electrically connecting the lower spring 21 to the coil 184 of the coil assembly 18. The lower spring 21 may be fixed to the coil assembly 18 by glue, and then electrically connected by soldering or laser welding.

Specifically, as shown in fig. 16 and 17, the lower springs 21 include one first lower spring and two second lower springs, and in step S15, the first lower spring 21 is electrically connected to one ends of the two coils 184, respectively, and the two second lower springs are electrically connected to the other ends of the two coils 184, respectively. The first and second lower springs include an outer portion 212, an inner portion 214, and a connecting portion 216 connecting the outer portion 212 and the inner portion 214, the outer portion 212 forming an outer side of the lower spring 21, the inner portion 214 forming an inner side of the lower spring 21, and the inner portion 214 electrically connecting the coil 184. The inner portion 214 is provided with a plurality of connection points 218 arranged at intervals, and the connection points 218 and the coil 184 can be electrically connected by welding. In another embodiment, the lower spring 21 may further include a frame (not shown), and the outer side 212 and the inner side 214 of the first lower spring and the second lower spring are connected to the frame through a connecting material. The step S15 may further include the step of removing the connecting material after electrically connecting the lower spring 21 to the coil 184 of the coil assembly 18.

S17, providing the base 15, and assembling the lens 17, the coil assembly 18, and the lower spring 21 assembled together to the base 15.

As shown in fig. 18, the chassis 15 includes a main body portion 154 and a conductive portion 156, the conductive portion 156 is embedded in the main body portion 154, and the outer portion 212 of the lower spring 21 is electrically connected to the conductive portion 156 of the chassis 15 in step S17. The body portion 154 and the conductive portion 156 are manufactured by insert molding to form the base 15. The base 15 is formed by insert molding, which can enhance the strength of the base 15, and can make the size of the base 15 smaller, which is beneficial to the miniaturization of the camera module.

When the lower spring 21 includes a rim, the step S17 may further include: and removing the frame. The cutting can be realized by manual removal or laser.

S19, providing the housing 23, the magnet 24 and the upper spring 25, and disposing the magnet 24 and the upper spring 25 in the housing 23 so that the magnet 24 is disposed corresponding to the coil assembly 18.

As shown in fig. 19 and 20, in particular, the housing 23 is hollow to form an accommodating cavity, and the bottom of the housing 23 is open, and the top of the housing is provided with a second light through hole 232, in step S19, the method specifically includes: the upper spring 25 and the magnet 24 are sequentially disposed in the accommodating cavity of the housing 23, the upper spring 25 is fixedly connected to the housing 23, the upper spring 25 is located at the top of the housing 23, and the magnet 24 is disposed corresponding to the coil assembly 18. More specifically, the two magnets 24 are respectively disposed on two opposite sides of the housing 23 and respectively disposed corresponding to the two coil assemblies 18.

Specifically, the upper spring 25 includes an outer frame 252, an inner frame 254, and a connecting body 256 connecting the outer frame 252 and the inner frame 254, wherein the outer frame 252 forms an outer side of the upper spring 25, the outer frame 252 is fixedly connected to the housing 23, and the inner frame 254 forms an inner side of the upper spring 25.

It is understood that step S19 may be located before any one of steps S11, S13, S15 and S17, and there is no limitation on the sequence of steps S11, S13, S15 and S17.

S21, the assembled housing 23, magnet 24, and upper spring 25 are assembled with the assembled lens 17, coil assembly 18, chassis 15, and lower spring 21.

As shown in fig. 21 and 22, a portion of the lens 17 is placed in the accommodating cavity, a portion of the lens 17 is exposed outside the housing 23 through the second light through hole 232, the inner frame 254 of the upper spring 25 is fixedly connected to the base 172 of the lens 17, and the housing 23 is also fixedly connected to the base 15.

S23, providing the supporting base 11 and the circuit board 13, disposing the imaging chip 29 and the filter 31 in the supporting base 11, fixedly connecting the base 15 to the supporting base 11, fixing the circuit board 13 to the bottom of the supporting base 11, connecting the top surface of the circuit board 13 to the bottom of the supporting base 11, and electrically connecting the imaging chip 29 and the conductive portion 156 of the base 15 to the circuit board 13. It will be appreciated that in another embodiment, as shown in fig. 5, the top of the circuit board 13 may be recessed, and the support base 11 is at least partially received in the recess. Thus, the size of the camera module in the thickness direction can be reduced, which is beneficial to the miniaturization of the camera module.

Specifically, the imaging chip 29 and the filter 31 correspond in position and are disposed on the optical axis of the lens 17. The inner wall of the supporting base 11 is provided with a boss 112, the optical filter 31 is arranged on the boss 112, and the imaging chip 29 and the optical filter 31 are respectively positioned at two sides of the boss 112, or in other embodiments, the imaging chip 29 and the optical filter 31 are positioned at the same side of the boss 112. The circuit board 13 is also provided with a connector 33 to transmit signals between the external circuit and the circuit board 13.

The camera module manufacturing method of the invention forms the camera module with an integrated structure by directly assembling the coil component 18 on the lens 17 and directly assembling the lens 17 on the base 15, compared with the camera module with a single voice coil motor and a lens module, the camera module with the integrated structure can be made smaller without considering the assembly gap between the voice coil motor and the lens module.

In this document, unless expressly stated or limited otherwise, 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 can be understood in a specific case to those of ordinary skill in the art.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

As used herein, the ordinal adjectives "first", "second", etc., used to describe an element are merely to distinguish between similar elements and do not imply that the elements so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.

As used herein, the meaning of "a plurality" or "a plurality" is two or more unless otherwise specified.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A camera module, comprising:

a base (15);

the lens (17) comprises a base (172) and a lens barrel (174) fixed on the base (172), and a lens group (178) is arranged in the lens barrel (174);

a coil assembly (18) fixedly attached to the base (172);

the lower spring (21) is arranged between the base (15) and the lens (17), and the lower spring (21) is electrically connected with the base (15) and the coil assembly (18) respectively;

a housing (23) which is hollow so as to form an accommodation chamber in which the lens (17) is at least partially accommodated;

the magnet (24) is arranged in the accommodating cavity of the shell (23), and the magnet (24) is arranged corresponding to the coil assembly (18).

2. The camera module according to claim 1, wherein the base (15) comprises a main body portion (154) and a conductive portion (156), the conductive portion (156) is embedded in the main body portion (154), and the conductive portion (156) is electrically connected to the lower spring (21).

3. The camera module according to claim 2, wherein the number of the coil assemblies (18) is two, two of the coil assemblies (18) are respectively disposed on two opposite sides of the base (172) of the lens (17), and two of the magnets (24) are respectively disposed on two opposite sides of the housing (23) and respectively disposed corresponding to the two coil assemblies (18).

4. The camera module according to claim 3, wherein the lower spring (21) comprises a first lower spring and two second lower springs, two ends of the first lower spring are electrically connected to one ends of the two coils (184), one ends of the two second lower springs are electrically connected to the other ends of the two coils (184), and the conductive portion (156) of the base (15) comprises two portions, and two portions of the conductive portion (156) are electrically connected to the other ends of the two second lower springs.

5. The camera module according to claim 4, wherein the first lower spring and the second lower spring each comprise an outer portion (212), an inner portion (214), and a connecting portion (216) connecting the outer portion (212) and the inner portion (214), the outer portion (212) is electrically connected to the conductive portion (156) of the base (15), the inner portion (214) is electrically connected to the coil (184), the inner portion (214) is provided with a plurality of connecting points (218) arranged at intervals, and the connecting points (218) are electrically connected to the coil (184).

6. The camera module according to claim 3, wherein the coil assembly (18) comprises a bracket (182) and a coil (184), the coil (184) is wound on the bracket (182), and the bracket (182) is fixedly connected to the base (172) of the lens (17); or,

the coil assembly (18) includes a coil (184) of a flexible circuit board structure.

7. The camera module according to claim 2, characterized in that the coil assembly (18) comprises a coil (184), the coil (184) surrounding the lens (17), the magnets (24) being arranged on two opposite sides of the housing (23); the number of the lower springs (21) is two, the conducting part (156) of the base (15) comprises two parts, and the two lower springs (21) are respectively and electrically connected with two ends of the coil (184) and are respectively and electrically connected with the two parts of the conducting part (156).

8. The camera module according to any one of claims 1 to 7, further comprising an upper spring (25) disposed in the accommodating cavity of the housing (23), wherein the upper spring (25) is fixedly connected to the housing (23) and the base (172), respectively; go up spring (25) including outline (252), inside casing (254) and connect outline (252) with connector (256) of inside casing (254), outline (252) and casing (23) fixed connection, inside casing (254) and base (172) fixed connection of camera lens (17), be equipped with the position of connection (258) that a plurality of intervals set up on inside casing (254), connect position (258) with base (172) are connected.

9. The camera module according to any one of claims 1 to 7, further comprising a supporting base (11) and a circuit board (13), wherein a receiving cavity is formed in the supporting base (11), an imaging chip (29) and a filter (31) are disposed in the receiving cavity, and the imaging chip (29) and the filter (31) are corresponding in position and disposed on an optical axis of the lens (17); the base (15) is arranged at the top of the supporting seat (11), the circuit board (13) is arranged on one side of the supporting seat (11) far away from the base (15), the imaging chip (29) is fixed and electrically connected to the circuit board (13), and a connector (33) is further arranged on the circuit board (13); the base (15) is electrically connected to the circuit board (13).

10. The camera module as claimed in claim 9, wherein the circuit board (13) is disposed at the bottom of the supporting base (11), and the top surface of the circuit board (13) is connected to the bottom of the supporting base (11); or, the top of the circuit board (13) is provided with a recess, and the support seat (11) is at least partially accommodated in the recess.

11. A method of manufacturing a camera module, comprising:

providing a coil assembly (18), the coil assembly (18) comprising a coil (184);

providing a lens (17), fixedly connecting the coil assembly (18) to the lens (17);

providing a lower spring (21), electrically connecting the lower spring (21) to the coil (184) of the coil assembly (18);

providing a base (15), and assembling the lens (17), the coil assembly (18) and the lower spring (21) which are assembled together to the base (15);

providing a shell (23) and a magnet (24), arranging the magnet (24) in the shell (23), and enabling the magnet (24) to be arranged corresponding to the coil assembly (18);

assembling the housing (23) and the magnet (24) assembled together with the lens (17), the coil block (18), the base (15), and the lower spring (21) assembled together.

12. The method for manufacturing a camera module according to claim 11, further comprising, after the step of assembling the assembled housing (23) and magnet (24) with the assembled lens (17), coil assembly (18), and mount (15):

providing a supporting seat (11) and a circuit board (13), arranging an imaging chip (29) and an optical filter (31) in the supporting seat (11), fixedly connecting the base (15) to the supporting seat (11), fixing the circuit board (13) on one side of the supporting seat (11) far away from the base (15), and electrically connecting the imaging chip (29) and the base (15) to the circuit board (13).