CN210690906U

CN210690906U - Lens module

Info

Publication number: CN210690906U
Application number: CN201921023523.2U
Authority: CN
Inventors: 王海龙
Original assignee: Changzhou Ruitai Photoelectric Co Ltd
Current assignee: Changzhou Ruitai Photoelectric Co Ltd
Priority date: 2019-06-28
Filing date: 2019-07-02
Publication date: 2020-06-05
Anticipated expiration: 2029-07-02
Also published as: WO2020258305A1

Abstract

The utility model provides a lens module, which comprises a lens cone and a lens, wherein the lens cone comprises a top wall with a light through hole and a cylinder wall bent and extended from the edge of the top wall, and the top wall is connected with the cylinder wall and encloses to form a cavity; the lens is contained in the cavity and comprises an optical part and a connecting part arranged around the optical part, the connecting part comprises a side surface abutted against the cylinder wall, and the cylinder wall comprises an abutting surface abutted against the side surface; the lens module is also provided with a glue containing groove, the glue containing groove is formed by sinking at least one of the side surface and the abutting surface, and the cylinder wall is also provided with a glue injection hole communicated with the glue containing groove. During assembly, glue can be injected into the glue containing groove from the glue injection hole so as to connect the lens with the lens barrel, and redundant glue in the glue containing groove can be contained in the glue injection hole so as to prevent the glue from overflowing to the optical part of the lens to influence imaging of the lens module.

Description

Lens module

[ technical field ] A method for producing a semiconductor device

The utility model relates to an optical imaging technical field specifically indicates a lens module.

[ background of the invention ]

With the continuous development of technology, portable electronic devices are continuously developing towards the direction of intellectualization and miniaturization. In addition to digital cameras, portable electronic devices, such as tablet computers and mobile phones, are equipped with a lens module having a photographing function.

The conventional lens module generally includes a lens barrel and a lens, wherein the lens is located in the lens barrel and fixed on the lens barrel by dispensing. However, when the amount of glue is too large, the excessive glue may overflow to the optical portion of the lens for imaging, which affects the imaging of the lens module.

Therefore, it is desirable to provide a lens module.

[ Utility model ] content

An object of the utility model is to provide a lens module, when aiming at solving current lens module and being connected lens and lens cone through the mode of gluing, the easy overflow of glue is to the optical part of lens and influences the problem that the lens module imaged.

The technical scheme of the utility model as follows:

providing a lens module, which comprises a lens barrel and a lens, wherein the lens barrel comprises a top wall with a light through hole and a barrel wall bent and extended from the edge of the top wall, and the top wall is connected with the barrel wall and encloses to form a cavity;

the lens is contained in the cavity and comprises an optical part and a connecting part arranged around the optical part, the connecting part comprises a side surface abutted against the cylinder wall, and the cylinder wall comprises an abutting surface abutted against the side surface;

the lens module is also provided with a glue containing groove, the glue containing groove is formed by sinking at least one of the side surface and the abutting surface, and the cylinder wall is also provided with a glue injection hole communicated with the glue containing groove.

Optionally, the abutting surface is recessed towards a direction away from the side surface to form a first glue containing groove, the side surface is recessed towards a direction away from the abutting surface to form a second glue containing groove, the first glue containing groove is communicated with the second glue containing groove to form the glue containing groove, and the glue injection hole is communicated with the first glue containing groove.

Optionally, at least one of the first glue containing groove and the second glue containing groove is an annular groove.

Optionally, the inner wall of the first glue receiving groove includes a first connection surface and a second connection surface that are sequentially arranged along a direction from the object side to the image side, the first connection surface and the second connection surface are oppositely arranged, the first connection surface is inclined from the object side to the image side in a direction away from the optical axis, and the second connection surface is inclined from the object side to the image side in a direction close to the optical axis.

Optionally, the inner wall of the first glue receiving groove further includes a first top surface, the first top surface is located between the first connection surface and the second connection surface, and the first top surface is parallel to the optical axis.

Optionally, the inner wall of the second glue accommodating groove includes a third connecting surface and a fourth connecting surface that are sequentially arranged along a direction from the object side to the image side, the third connecting surface and the fourth connecting surface are oppositely arranged, the third connecting surface is inclined from the object side to the image side in a direction close to the optical axis, and the fourth connecting surface is inclined from the object side to the image side in a direction away from the optical axis.

Optionally, the inner wall of the second glue accommodating groove further includes a second top surface, the second top surface is located between the third connecting surface and the fourth connecting surface, and the second top surface is parallel to the optical axis.

Optionally, the number of the lenses is several, the lenses include a first lens, a second lens, a third lens and a fourth lens, which are sequentially disposed from an object side to an image side, and the second glue accommodating groove is disposed in the fourth lens.

Optionally, the cylinder wall further includes an outer surface opposite to the abutting surface, and the glue injection hole is formed by being recessed from the outer surface toward the abutting surface.

Optionally, the injecting glue hole is including the first injecting glue hole, the second injecting glue hole and the third injecting glue hole that communicate in proper order, first injecting glue hole with hold gluey groove intercommunication, the third injecting glue hole certainly the surface orientation the sunken formation of butt surface, second injecting glue hole intercommunication first injecting glue hole with the third injecting glue hole, the axis in second injecting glue hole is the straight line, just the axis in second injecting glue hole is parallel with the optical axis.

The beneficial effects of the utility model reside in that: above-mentioned camera lens module, through setting up and holding gluey groove and injecting glue hole, glue can be injected into to holding gluey inslot by the injecting glue hole to be connected lens and lens cone. After the glue containing groove is filled with glue, the redundant glue can be contained in the glue injecting hole so as to prevent the glue from overflowing to the optical part of the lens to influence the imaging of the lens module. Moreover, by arranging the glue accommodating groove, the contact area between glue and at least one of the lens barrel and the lens can be increased, so that the connection between the lens barrel and the lens is more reliable, and the imaging quality of the lens module and the electronic equipment using the lens module is improved.

[ description of the drawings ]

Fig. 1 is a cross-sectional view of a lens module according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the lens barrel in fig. 1;

FIG. 3 is a schematic structural diagram of a fourth lens shown in FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

fig. 5 is a schematic view of the structure of fig. 4 filled with glue.

The reference numbers in the specification are as follows:

10. a lens module; 101. a glue containing groove;

100. a lens barrel; 110. a top wall; 111. a light through hole; 120. a cylinder wall; 121. an inner surface; 1211. an abutting surface; 122. an outer surface; 123. a first glue containing groove; 1231. a first connection face; 1232. a first bottom surface; 1233. a second connection face; 124. injecting glue holes; 1241. a first glue injection hole; 1242. a second glue injection hole; 1243. a third glue injection hole;

210. an optical portion; 220. a connecting portion; 221. an object side surface; 222. an image side; 223. a side surface; 224. a second glue containing groove; 2241. a third connection surface; 2242. a second bottom surface; 2243. a fourth connection face; 201. a first lens; 202. a second lens; 203. a third lens; 204. a fourth lens;

300. an optical axis.

[ detailed description ] embodiments

The present invention will be further described with reference to the accompanying drawings and embodiments.

As shown in fig. 1, an embodiment of the present invention provides a lens module 10 applied in an electronic device, where the lens module 10 includes a lens barrel 100 and a lens. The lens barrel 100 includes a top wall 110 having a light passing hole 111 and a barrel wall 120 extending from the top wall 110, the top wall 110 and the barrel wall 120 enclose a cavity, and the lens is accommodated in the cavity.

As shown in fig. 1, the number of the lenses is four, and the lenses include a first lens 201, a second lens 202, a third lens 203 and a fourth lens 204 which are sequentially accommodated in a cavity along an object-side to image-side direction. It will be appreciated that in other embodiments, the number of lenses may be varied according to actual needs.

Referring to fig. 2 and 3, the fourth lens 204 includes an optical portion 210 for imaging and a connecting portion 220 disposed around the optical portion 210. The connecting portion 220 includes an object side 221 and an image side 222 disposed opposite to each other, and a side surface 223 connecting the object side 221 and the image side 222. The cylinder wall 120 includes an inner surface 121 and an outer surface 122 disposed opposite to each other, the inner surface 121 includes a contact surface 1211 contacting with the side surface 223, the contact surface 1211 is recessed in a direction away from the side surface 223 to form a first glue receiving groove 123, and the side surface 223 is recessed in a direction away from the contact surface 1211 to form a second glue receiving groove 224.

Referring to fig. 4, the first glue receiving groove 123 is communicated with the second glue receiving groove 224 to form the glue receiving groove 101. The cylinder wall 120 is further provided with a glue injection hole 124, and the glue injection hole 124 is communicated with the first glue containing groove 123, so that glue can be injected into the glue containing groove 101 formed by the first glue containing groove 123 and the second glue containing groove 224 through the glue injection hole 124. In other embodiments, the glue injection hole 124 may also be directly communicated with the second glue containing groove 224, and communicated with the first glue containing groove 123 through the second glue containing groove 224.

It is understood that in other embodiments, the glue containing groove 101 may also be formed by only the abutting surface 1211 or the side surface 223 being recessed, that is, the glue is filled only in the first glue containing groove 123 or the second glue containing groove 224.

It should be noted that, in the present embodiment, the glue injection hole 124 is formed by being recessed from the outer surface 122 toward the direction close to the abutting surface 1211, so as to facilitate the glue injection by the assembling personnel. Of course, in other embodiments, the glue injection hole 124 may also be formed in a portion of the inner surface 121 located on the image side of the fourth lens 204. In the present embodiment, the glue injection hole 124 includes a first glue injection hole 1241, a second glue injection hole 1242 and a third glue injection hole 1243 which are sequentially communicated, the first glue injection hole 1241 is communicated with the first glue receiving slot 123, and the third glue injection hole 1243 is formed by recessing the outer surface 122 in a direction approaching the contact surface 1211. The axis of the second glue injection hole 1242 is a straight line, and the axis of the second glue injection hole 1242 is parallel to the optical axis 300 of the lens module 10. That is, the axis of the first glue injection hole 1241 and the axis of the third glue injection hole 1243 both form an included angle with the axis of the second glue injection hole 1242, and the axis of the glue injection hole 124 is nonlinear, so that the distance between the inner wall of the second glue injection hole 1242 and the inner surface 121, and the distance between the inner wall of the second glue injection hole 1242 and the outer surface 122 are equal everywhere in the direction parallel to the optical axis 300 of the lens module 10, so as to ensure the strength of the lens barrel 100, and the length of the axis of the glue injection hole 124 can be further extended, so as to increase the volume of the glue injection hole 124. In other embodiments, the axis of the glue injection hole 124 may also be linear and form an included angle with the optical axis 300 of the lens module 10.

In the present embodiment, the first glue receiving groove 123 and the second glue receiving groove 224 are both annular grooves. During assembly, by injecting glue into the glue injection hole 124, the glue can be filled into the first glue containing groove 123 and the second glue containing groove 224, so as to connect the fourth lens 204 with the lens barrel 100. Referring to fig. 5, after the first glue containing groove 123 and the second glue containing groove 224 are filled with glue, the excess glue can be contained in the glue injection hole 124, so as to prevent the glue from overflowing to the optical portion 210 of the fourth lens 204 to affect the imaging of the lens module 10. Moreover, by providing the first glue containing groove 123 and the second glue containing groove 224, the contact area between the glue and the lens barrel 100 and the fourth lens 204 can be increased to enhance the stability of the lens module 10, thereby improving the imaging quality of the lens module 10 and the electronic device using the lens module 10.

In other embodiments, one of the first glue receiving groove 123 or the second glue receiving groove 224 may also be a plurality of grooves arranged around the optical axis 300 at intervals. When the first glue accommodating groove 123 is a plurality of grooves arranged around the optical axis 300 at intervals, the glue injection holes 124 may also be provided in plurality, and the number of the glue injection holes 124 is the same as the number of the grooves forming the first glue accommodating groove 123, and each glue injection hole 124 corresponds to each groove.

During the equipment, can pour into glue into in a plurality of glue injection holes 124 simultaneously to improve the packaging efficiency, and guarantee that each recess that forms first appearance gluey groove 123 is filled with glue. Of course, the number of the glue injection holes 124 may be only one. At this time, the glue is injected from the glue injection hole 124 and flows into the second glue accommodating groove 224 from the groove corresponding to the glue injection hole 124. After the second glue accommodating groove 224 is filled with glue, the glue can be filled into the rest of the grooves, and the rest of the glue can be accommodated in the glue injecting hole 124.

It is understood that, in other embodiments, the second glue receiving groove 224 may be an annular groove, and the first glue receiving groove 123 may be a plurality of grooves disposed around the optical axis 300. Alternatively, the first glue receiving groove 123 and the second glue receiving groove 224 are both a plurality of grooves arranged around the optical axis 300 at intervals. At this time, the number of the grooves forming the first glue receiving groove 123 is the same as the number of the grooves forming the second glue receiving groove 224, and each groove forming the first glue receiving groove 123 corresponds to each groove forming the second glue receiving groove 224. Moreover, there are also a plurality of glue injection holes 124, and the number of the glue injection holes 124 is the same as the number of the grooves forming the first glue accommodating grooves 123, and each glue injection hole 124 corresponds to each groove forming the first glue accommodating groove 123. During assembly, glue is injected into the glue injection holes 124, and the glue flows into the groove forming the first glue accommodating groove 123 and the groove forming the second glue accommodating groove 224 from the glue injection holes 124, so as to connect the fourth lens 204 and the lens barrel 100 through the glue.

Further, in the present embodiment, referring mainly to fig. 4, the first glue receiving groove 123 includes a first connection surface 1231, a first bottom surface 1232, and a second connection surface 1233 sequentially connected in a direction from the object side to the image side, and both the first connection surface 1231 and the second connection surface 1233 are connected to the abutting surface 1211. In the object-to-image direction, the first connection surface 1231 is inclined in a direction away from the optical axis 300, and the second connection surface 1233 is inclined in a direction closer to the optical axis 300.

The second glue receiving groove 224 includes a third connecting surface 2241, a second bottom surface 2242 and a fourth connecting surface 2243 sequentially connected in a direction from the object side to the image side, and the third connecting surface 2241 and the fourth connecting surface 2243 are connected to the side surface 223. In the direction from the object side to the image side, the third connecting surface 2241 is inclined in a direction closer to the optical axis 300, and the fourth connecting surface 2243 is inclined in a direction farther from the optical axis 300. That is, the size of the inlet of the first glue receiving groove 123 is the largest, and the size of the outlet of the second glue receiving groove 224 is the largest, so that the glue in the glue injecting hole 124 can be quickly filled into the first glue receiving groove 123 and the second glue receiving groove 224. Moreover, the first connection surface 1231 and the second connection surface 1233 are obliquely disposed, so that not only the contact area between the glue and the first glue receiving groove 123 can be ensured, but also the strength of the lens barrel 100 can be ensured, and the strength of the lens barrel 100 at the position of the first glue receiving groove 123 is prevented from being weakened in order to increase the contact area between the first glue receiving groove 123 and the glue by the lens barrel 100. Similarly, the third connecting surface 2241 and the fourth connecting surface 2243 are disposed obliquely, so as to ensure the contact area between the glue and the second glue receiving groove 224 and the strength of the fourth lens 204.

It is understood that in other embodiments, first bottom surface 1232 and second bottom surface 2242 may be eliminated. At this time, the first connecting surface 1231 is directly connected to the second connecting surface 1233, the third connecting surface 2241 is directly connected to the fourth connecting surface 2243, and the first glue receiving groove 123 and the second glue receiving groove 224 are triangular grooves.

It should be noted that, referring to fig. 4 mainly, the connection between the first connection surface 1231 and the first bottom surface 1232, the connection between the second connection surface 1233 and the first bottom surface 1232, the connection between the third connection surface 2241 and the second bottom surface 2242, the connection between the fourth connection surface 2243 and the second bottom surface 2242, and the connection between the glue injection hole 124 and the second glue receiving groove 224 are all arc structures, so as to avoid the stress concentration from affecting the strength of the lens barrel 100 and the strength of the fourth lens 204.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A lens module is characterized by comprising a lens barrel and a lens, wherein the lens barrel comprises a top wall with a light through hole and a barrel wall bent and extended from the edge of the top wall, and the top wall and the barrel wall are connected and enclosed to form a cavity;

2. The lens module as recited in claim 1, wherein the abutting surface is recessed in a direction away from the side surface to form a first glue receiving groove, the side surface is recessed in a direction away from the abutting surface to form a second glue receiving groove, the first glue receiving groove is communicated with the second glue receiving groove to form the glue receiving groove, and the glue injection hole is communicated with the first glue receiving groove.

3. The lens module as claimed in claim 2, wherein at least one of the first glue receiving groove and the second glue receiving groove is an annular groove.

4. The lens module as claimed in claim 2, wherein the inner wall of the first glue receiving groove includes a first connecting surface and a second connecting surface sequentially disposed along a direction from the object side to the image side, the first connecting surface and the second connecting surface are disposed opposite to each other, the first connecting surface is inclined from the object side to the image side in a direction away from the optical axis, and the second connecting surface is inclined from the object side to the image side in a direction close to the optical axis.

5. The lens module as claimed in claim 4, wherein the inner wall of the first glue receiving groove further includes a first top surface, the first top surface is located between the first connecting surface and the second connecting surface, and the first top surface is parallel to the optical axis.

6. The lens module as claimed in claim 2, wherein the inner wall of the second glue receiving groove includes a third connecting surface and a fourth connecting surface sequentially disposed along a direction from the object side to the image side, the third connecting surface is disposed opposite to the fourth connecting surface, the third connecting surface is inclined from the object side to the image side and in a direction close to the optical axis, and the fourth connecting surface is inclined from the object side to the image side and in a direction away from the optical axis.

7. The lens module as recited in claim 6, wherein the inner wall of the second glue receiving groove further comprises a second top surface, the second top surface is located between the third connecting surface and the fourth connecting surface, and the second top surface is parallel to the optical axis.

8. The lens module as claimed in claim 2, wherein the plurality of lenses include a first lens, a second lens, a third lens and a fourth lens sequentially disposed from an object side to an image side, and the second glue receiving groove is disposed in the fourth lens.

9. The lens module as claimed in claim 1, wherein the barrel wall further includes an outer surface disposed opposite to the abutting surface, and the glue injection hole is formed by being recessed from the outer surface toward the abutting surface.

10. The lens module as recited in claim 9, wherein the glue injection holes include a first glue injection hole, a second glue injection hole and a third glue injection hole which are sequentially communicated, the first glue injection hole is communicated with the glue accommodating groove, the third glue injection hole is formed by sinking from the outer surface to the abutting surface, the second glue injection hole is communicated with the first glue injection hole and the third glue injection hole, an axis of the second glue injection hole is a straight line, and an axis of the second glue injection hole is parallel to an optical axis.