阅读说明：本技术 相机模组 (Camera module ) 是由 马晓梅 陈信文 张龙飞 李堃 于 2018-06-28 设计创作，主要内容包括：一种相机模组,该相机模组包括一镜头及一镜座,该镜头收容在该镜座内,该镜头包括一镜头外壁,该镜头外壁上形成有一外螺纹该镜座包括一与该镜头外壁相对的镜座外壁、一与该镜座外壁相背的镜座内壁及一与该镜座内壁及该镜座外壁垂直相连的第一表面,该镜座内壁上形成有一内螺纹,该内螺纹与该外螺纹匹配；该镜座外壁上套设有一防护套,该防护套包括一缓冲部及一防尘部,该缓冲部贴附在该镜座外壁上,该防尘部贴附在该镜座的第一表面上,该防尘部遮盖该内螺纹及该外螺纹。本发明提供的相机模组,不仅能够减少相机模组内部各部件所受的撞击力,还能够防止外界的灰尘等进入相机模组内部。(A camera module comprises a lens and a lens base, wherein the lens is accommodated in the lens base and comprises a lens outer wall, an external thread is formed on the lens outer wall, the lens base comprises a lens base outer wall opposite to the lens outer wall, a lens base inner wall opposite to the lens base outer wall and a first surface vertically connected with the lens base inner wall and the lens base outer wall, an internal thread is formed on the lens base inner wall, and the internal thread is matched with the external thread; the mirror seat outer wall is sleeved with a protective sleeve, the protective sleeve comprises a buffering portion and a dustproof portion, the buffering portion is attached to the mirror seat outer wall, the dustproof portion is attached to the first surface of the mirror seat, and the dustproof portion covers the internal thread and the external thread. The camera module provided by the invention not only can reduce the impact force on each part in the camera module, but also can prevent external dust and the like from entering the camera module.)

1. A camera module comprises a lens and a lens base, wherein the lens is accommodated in the lens base and comprises a lens outer wall, an external thread is formed on the lens outer wall, the lens base comprises a lens base outer wall opposite to the lens outer wall, a lens base inner wall opposite to the lens base outer wall and a first surface vertically connected with the lens base inner wall and the lens base outer wall, an internal thread is formed on the lens base inner wall, and the internal thread is matched with the external thread; the glasses seat is characterized in that a protective sleeve is sleeved on the outer wall of the glasses seat and comprises a buffering part and a dustproof part, the buffering part is attached to the outer wall of the glasses seat, the dustproof part is attached to the first surface of the glasses seat, and the dustproof part covers the internal thread and the external thread.

2. The camera module as claimed in claim 1, wherein the buffer portion has elasticity.

3. The camera module of claim 2, wherein the buffer is rubber.

4. The camera module of claim 1, wherein the dust-proof portion is rubber or foam.

5. The camera module as claimed in claim 1, wherein the buffer portion and the dust-proof portion are integrally formed.

6. The camera module of claim 1, wherein the buffer portion and the dust-proof portion are formed separately.

7. The camera module as claimed in claim 1, wherein the lens holder further comprises a first receiving groove, the lens is received in the first receiving groove, the dust-proof portion comprises a through hole penetrating through the dust-proof portion, the diameter of the through hole is smaller than that of the first receiving groove, and the lens protrudes through the through hole.

8. The camera module of claim 1, further comprising a lens holder bracket, wherein the lens holder is fixed to the lens holder bracket.

9. The camera module as claimed in claim 8, further comprising a filter fixed in the lens holder, wherein the lens comprises at least one lens, and the lens is opposite to the filter.

10. The camera module as claimed in claim 9, further comprising a circuit board and a photosensitive chip, wherein the lens holder bracket is fixed on the circuit board, the photosensitive chip is electrically connected to the circuit board and received in the lens holder bracket, and the photosensitive chip is opposite to the filter.

Technical Field

The invention relates to a camera module.

Background

Most mobile phone camera modules in the market at present consist of six parts, namely a lens, a motor, a filter, a photosensitive chip, a plastic base and a circuit board. Under the rapid development of the times, the mobile phone camera provides faster and more convenient life for people; with the progress of the mobile phone camera photographing technology, the use frequency of a user for a mobile phone camera is gradually increased, and the requirements on the reliability and quality of camera photographing are higher and higher.

At present, after the mobile phone camera module is impacted by external force, the mobile phone camera module can directly cause the short circuit, the open circuit or the falling of a voice coil motor, and the glue between a lens base and a lens base supporting frame can also be broken and fall to form fragments or particles, and the fragments or the particles can influence the imaging quality of the camera module.

In addition, a gap may exist between the lens holder and the lens through threaded connection, and external dust and the like may enter the camera module from the gap, thereby affecting the imaging quality of the camera module.

Disclosure of Invention

Accordingly, the present invention provides a camera module that can not only reduce the impact on the components in the camera module caused by impact, but also prevent dust from entering the camera.

A camera module comprises a lens and a lens base, wherein the lens is accommodated in the lens base and comprises a lens outer wall, an external thread is formed on the lens outer wall, the lens base comprises a lens base outer wall opposite to the lens outer wall, a lens base inner wall opposite to the lens base outer wall and a first surface vertically connected with the lens base inner wall and the lens base outer wall, an internal thread is formed on the lens base inner wall, and the internal thread is matched with the external thread; the mirror seat outer wall is sleeved with a protective sleeve, the protective sleeve comprises a buffering portion and a dustproof portion, the buffering portion is attached to the mirror seat outer wall, the dustproof portion is attached to the first surface of the mirror seat, and the dustproof portion covers the internal thread and the external thread.

Further, the buffer portion has elasticity.

Further, the buffer portion is made of rubber.

Further, the dustproof part is made of rubber or foam.

Further, the buffering part and the dust-proof part are integrally formed.

Further, the buffer part and the dust-proof part are formed separately.

Furthermore, the lens holder further comprises a first accommodating groove, the lens is accommodated in the first accommodating groove, the dustproof portion comprises a through hole penetrating through the dustproof portion, the diameter of the through hole is smaller than that of the first accommodating groove, and the lens penetrates out of the through hole.

Furthermore, the camera module further comprises a lens base bracket, and the lens base is fixed on the lens base bracket.

Furthermore, the camera module further comprises an optical filter, the optical filter is fixed in the lens base bracket, the lens comprises at least one lens, and the lens is opposite to the optical filter.

Furthermore, the camera module further comprises a circuit board and a photosensitive chip, the lens holder bracket is fixed on the circuit board, the photosensitive chip is electrically connected with the circuit board and accommodated in the lens holder bracket, and the photosensitive chip is opposite to the optical filter.

The camera module provided by the invention 1) is characterized in that an elastic buffer part is attached to the outer wall of the lens base, so that the impact force on each part in the camera module can be reduced when the camera module is impacted, the occurrence probability of short circuit, short circuit and falling of a voice coil motor, and the occurrence probability of broken and falling of glue between the lens base and a lens base support frame, fragment or particle formation and the like can be reduced, and the service life of the camera module is prolonged; 2) the dustproof portion is attached to the first surface of the lens base and covers the internal thread on the lens and the internal thread on the lens base, so that external dust and the like can be prevented from entering the camera module through a gap between the internal thread and the external thread, and the imaging quality of the camera module is improved.

Drawings

Fig. 1 is a schematic perspective view of a camera module according to a first embodiment of the invention.

Fig. 2 is a sectional view of the camera module of fig. 1 taken along line II-II.

Fig. 3 is a perspective view of another camera module according to a second embodiment of the invention.

Description of the main elements

Camera module	100，200
		Lens barrel	10
Lens	11
		External thread	12
Mirror base	20
		First surface	21
Second surface	22
		First containing groove	23
Internal thread	231
		Outer wall of lens base	24
Mirror base support	30
		Third surface	31
The fourth surface	32
		Second containing groove	33
Supporting part	34
		Gap	35
Optical filter	40
		Photosensitive chip	50
Circuit board	60
		Protective sleeve	70，80
Buffer part	71，81
		Dust preventionPart (A)	72，82
Through hole	721

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the predetermined objects, the following detailed description will be made on the specific embodiments, structures, features and effects of the camera module according to the present invention with reference to fig. 1-3 and the preferred embodiments.

Referring to fig. 1-2, a camera module 100 according to a first embodiment of the present invention includes a lens 10, a lens holder 20, a lens holder bracket 30, a filter 40, a photosensitive chip 50, a circuit board 60, and a protective cover 70.

The lens 10 is accommodated in the lens holder 20 and is in threaded connection with the lens holder 20.

The lens 10 includes at least one lens 11. The lens 10 has an external thread 12 formed on an outer wall thereof.

The lens base 20 includes a first surface 21 and a second surface 22 opposite to the first surface 21. A first receiving groove 23 is formed by recessing from the first surface 21 to the second surface 22, and the first receiving groove 23 is used for receiving the lens 10. The inner wall of the first receiving groove 23 is formed with an internal thread 231 matching the external thread 12 of the lens 10.

The lens holder 20 further includes a lens holder outer wall 24, and the lens holder outer wall 24 is opposite to the inner wall of the first accommodating groove 23 and is vertically connected to the first surface 21.

Wherein the lens base 20 is fixed on the lens base bracket 30. The lens holder bracket 30 includes a third surface 31 attached to the second surface 22 of the lens holder 20 and a fourth surface 32 opposite to the third surface 31. A second receiving groove 33 is formed by recessing from the fourth surface 32 to the third surface 31, and the second receiving groove 33 is used for receiving the photo chip 50. A supporting portion 34 is further formed at the junction of the first receiving slot 23 and the second receiving slot 33, a gap 35 is formed on the supporting portion 34, and the second receiving slot 33 is communicated with the first receiving slot 23 through the gap 35.

In the present embodiment, the supporting portion 34 is stepped.

The filter 40 is used to filter stray light entering the camera module 100. The filter 40 is fixed on the step of the support 34 and faces the lens 11. A portion of the filter 40 is exposed from the opening 35.

The photosensitive chip 50 is disposed on the circuit board 60 and is received in the second receiving groove 33. The photosensitive chip 50 faces the optical filter 40. The photosensitive chip 50 is electrically connected to the circuit board 60 through a metal wire (not shown).

The lens holder 30 is fixed on the circuit board 60, a plurality of electronic components 61 are formed on the circuit board 60, and the plurality of electronic components 61 are disposed around the photosensitive chip 50 and are accommodated in the second accommodating groove 33.

Wherein, the protecting sleeve 70 is sleeved on the outer surface of the lens base 20. The protective cover 70 includes a buffer portion 71 and a dust-proof portion 72. Wherein, the buffer portion 71 is attached to the outer wall 24 of the lens holder 20. The dust-proof portion 72 is attached to the first surface 21 of the lens holder 20. The dust-proof portion 72 covers the internal thread 231 and the external thread 12. The buffer portion 71 has elasticity. The buffer portion 71 and the dust-proof portion 72 may be integrally formed or may be separately formed. The dust-proof portion 72 includes a through hole 721 penetrating the dust-proof portion 72, the diameter of the through hole 721 is smaller than the diameter of the first receiving slot 23, and the lens 10 passes through the through hole 721.

The buffer portion 71 is made of elastic material such as rubber. The dust-proof portion 72 is made of rubber, foam, or the like.

In the present embodiment, the buffer portion 71 and the dust-proof portion 72 are integrally formed and made of rubber. Of course, the material of the buffer portion 71 and the dust-proof portion 72 may be different when they are integrally molded.

The camera module 100 further includes a voice coil motor (not shown) accommodated in the first accommodating groove 23 and electrically connected to the lens 10. The voice coil motor is used for driving the lens 10 to move up and down, so that automatic focusing is realized, and an image is clearer.

Referring to fig. 3, a camera module 200 according to a second embodiment of the present invention is provided, the camera module 200 is similar to the camera module 100 according to the first embodiment of the present invention, except that the structure of the protective cover 80 of the camera module 200 is different from that of the protective cover 70 of the camera module 100. In the present embodiment, the buffer portion 81 and the dust-proof portion 82 are separately formed, and the material of the buffer portion 81 is different from that of the dust-proof portion 82. Specifically, the buffer portion 81 is made of rubber, and the dust-proof portion 82 is made of foam.

The camera module 100, 200, 1) provided by the invention is characterized in that the elastic buffer part is attached to the outer wall of the lens holder 20, so that the impact force applied to each part in the camera module can be reduced when the camera module is impacted, the occurrence probability of short circuit, short circuit and falling of a voice coil motor, and the occurrence probability of fragments or particles caused by the breakage and falling of glue between the lens holder and a lens holder supporting frame can be reduced, and the service life of the camera module can be prolonged; 2) a dust-proof portion is attached to the first surface of the lens holder 20, and the dust-proof portion covers the internal thread on the lens and the internal thread on the lens holder, so that external dust and the like can be prevented from entering the camera module through a gap between the internal thread and the external thread, and the imaging quality of the camera module is improved.

Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.