CN212367341U - Camera module - Google Patents

Abstract

The utility model provides a camera module, including circuit board, photosensitive element and camera lens subassembly, the camera module still includes leaded light spare and light source subassembly, and photosensitive element locates on the circuit board, and with circuit board electric connection, one side that photosensitive element kept away from the circuit board is located to the camera lens subassembly, and the leaded light spare is located the camera lens subassembly outside, and one side of keeping away from the leaded light spare of light source subassembly has seted up the holding tank, and the holding tank corresponds and near the periphery of camera lens subassembly. The utility model provides a camera module owing to set up leaded light spare and light source subassembly, carries out the light filling to the camera module, and the light filling is even moreover, has improved the formation of image effect of camera module greatly to realize light source subassembly and base, drive arrangement's fixed after the encapsulating solidification in the holding tank, can play the effect of strengthening to the fixed of leaded light spare and light source subassembly, make and connect more firm.

Description

Camera module

Technical Field

The utility model relates to an imaging technology field especially relates to a camera module.

Background

With the progress of science and technology, the application of the camera is more and more extensive, and at present, except cameras, mobile phones, computers and other electronic products are equipped with the camera, so that people can take pictures at any time and any place conveniently, and convenience and fun are brought to the life of people.

Under the condition that the cameras are more and more popular, people have more and more requirements on the functions of the cameras, and what is important is that the imaging effect of the cameras is better and clearer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a better camera module of formation of image effect.

The utility model provides a camera module, including circuit board, photosensitive element and camera lens subassembly, the camera module still includes leaded light spare and light source subassembly, photosensitive element locates on the circuit board, and with circuit board electric connection, the camera lens subassembly is located photosensitive element keeps away from one side of circuit board, the leaded light spare is located the camera lens subassembly outside, keeping away from of light source subassembly one side of leaded light spare has seted up the holding tank, the holding tank corresponds and near the periphery of camera lens subassembly.

In one embodiment, the light source assembly includes a light source, a circuit board, and a mounting plate, the light source is disposed on the circuit board, the circuit board is disposed on the mounting plate, and the receiving groove is formed on the mounting plate.

In one embodiment, the accommodating groove is provided with an adhesive inside to bond the mounting plate and the lens assembly.

In one embodiment, the accommodating groove extends along the outer edge of the lens assembly for a circle, or a plurality of accommodating grooves are intermittently arranged at the outer edge of the lens assembly.

In one embodiment, the lens assembly includes a first lens assembly, a second lens assembly, a base and a driving device, the first lens assembly is mounted in the base, the second lens assembly is mounted in the driving device, a portion of the receiving groove corresponds to and abuts against an outer periphery of the base, and another portion corresponds to and abuts against an outer periphery of the driving device.

In one embodiment, the base is disposed on the circuit board, the base forms a cavity, the photosensitive element is accommodated in the cavity, the driving device is disposed on a side of the base away from the circuit board, and the second lens assembly is disposed on a side of the first lens assembly away from the photosensitive element.

In one embodiment, the first lens component is a fixed focus lens, and the second lens component is a zoom lens.

In one embodiment, an opening is formed in the middle of the light source assembly, and the light source assembly is sleeved on the outer peripheries of the base and the driving device.

In one embodiment, the mounting plate may be integrally formed with the circuit board, or the mounting plate and the circuit board may be separately formed.

In one embodiment, the light source is disposed at the bottom of the light guide, and the light source is substantially located at the middle of the light guide in a direction perpendicular to the optical axis of the lens assembly.

In one embodiment, a groove is formed in the bottom of the light guide facing the light source assembly, and the light source is accommodated in the groove.

In one of them embodiment, the camera module still includes the cover ring, the cover ring is located the top of leaded light spare, the periphery department of leaded light spare still is equipped with the installation department, the rubber slot has been seted up on the installation department, the rubber slot is equipped with viscose portion in order to connect the leaded light spare with the cover ring, the camera module still includes the apron, the apron lid is located the top of leaded light spare, and be located the second camera lens subassembly is kept away from one side of photosensitive element.

In one embodiment, the camera module further includes a first protection film, a second protection film and a third protection film, the first protection film is disposed on the top of the cover plate, the second protection film is disposed on the top of the first lens assembly, and the third protection film is disposed on the top of the second lens assembly.

The utility model provides a camera module owing to set up leaded light spare and light source subassembly, carries out the light filling to the camera module, and the light filling is even moreover, has improved the formation of image effect of camera module greatly to realize light source subassembly and base, drive arrangement's fixed after the encapsulating solidification in the holding tank, can play the effect of strengthening to the fixed of leaded light spare and light source subassembly, make and connect more firm.

Drawings

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

Fig. 2 is another perspective assembly view of the camera module shown in fig. 1.

Fig. 3 is an angled exploded perspective view of the camera module shown in fig. 1.

Fig. 4 is another perspective exploded view of the camera module shown in fig. 1.

Fig. 5 is a sectional view of the camera module shown in fig. 1.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and examples.

As shown in fig. 1 to 5, the camera module according to an embodiment of the present invention includes a circuit board 11, a photosensitive element 13, a filter 17, a lens assembly, a light guide 25, a light source assembly 27, a cover ring 29, and a cover plate 31. The lens assembly includes a base 15, a first lens assembly 19, a second lens assembly 21, and a drive device 23.

In this embodiment, the circuit board 11 may be a flexible circuit board. The wiring board 11 includes a main body portion provided corresponding to the photosensitive element 13 and a first extending portion extending from the main body portion.

In this embodiment, the photosensitive element 13 and the base 15 are both disposed on the circuit board 11, the base 15 forms a cavity 152, and the photosensitive element 13 is accommodated in the cavity 152. Specifically, the photosensitive element 13 may be a photosensitive chip, such as a CCD (Charge Coupled Device) photosensitive chip or a CMOS (Complementary Metal Oxide Semiconductor) photosensitive chip. The photosensitive element 13 is electrically connected to the circuit board 11 to transmit the electrical signal to the circuit board 11. The inner wall of the base 15 is formed with a fixing stand 154 protruded inward.

In this embodiment, the filter 17 is disposed on the fixing stage 154, and the filter 17 is located between the photosensitive element 13 and the first and second lens assemblies 19 and 21. In this embodiment, the filter 17 is provided below the fixing stage 154. It is understood that the filter 17 may also be positioned above the fixed stage 154. The filter 1 may be fixed on the fixing stage 154 by glue.

In this embodiment, the first lens assembly 19 is disposed on the base 15. Specifically, the first lens assembly 19 includes a first lens group and a first lens barrel, the first lens group is assembled in the first lens barrel, an external thread is disposed on an outer side of the first lens barrel, an internal thread is disposed on an inner wall of the base 15, and the first lens assembly 19 is fixed in the base 15. The first lens assembly 19 is a fixed focus lens.

In this embodiment, the second lens assembly 21 is disposed in the driving device 23, and the driving device 23 is disposed on the base 15, such that the second lens assembly 21 is located on a side of the first lens assembly 19 away from the light sensing element 13. Specifically, the driving device 23 is provided on a side of the base 15 away from the wiring board 11. The second lens assembly 21 is a zoom lens. The second lens assembly 21 includes a second lens group and a second lens barrel, and the second lens group is assembled in the second lens barrel.

In this embodiment, the driving device 23 may be a voice coil motor. Of course, the driving device 23 can also be a driving device made of memory alloy, as long as it can move the second lens assembly 21 up and down for zooming. Specifically, voice coil motor includes casing, magnet, carrier and coil, and on the casing was located to the magnet, the coil was located on the carrier, and second camera lens subassembly 21 was fixed in on the carrier, through to the coil circular telegram, under the effect of magnet, can produce magnetic force and promote the relative casing rectilinear movement of carrier, realizes the focusing to second camera lens subassembly 21. Specifically, the housing is fixed to the base 15.

In this embodiment, the light guide 25 is disposed outside the second lens assembly 21, and the light guide 25 is annular and surrounds the entire outside of the second lens assembly 21. The light guide piece 25 guides light rays to the optical axis of the second lens assembly 21, so that light can be supplemented to the camera module, and the imaging effect of the camera module is improved; in addition, the light guide member 25 annularly surrounds the second lens assembly 21, so that the uniformity of light supplement is good, and the imaging effect of the camera module is further improved. Specifically, the light guide 25 is fixed outside the driving device 23 and partially exposed at the top of the driving device 23, and the second lens assembly 21 protrudes above the driving device 23 to a side away from the photosensitive element 13. The height that the terminal surface of leaded light 25 one side far away the circuit board 11 to circuit board 11 is greater than the height that terminal surface of second lens subassembly 21 one side far away circuit board 11 to circuit board 11, like this, can control the height of whole camera module well, and leaded-in second lens subassembly 21 of light can be well with leaded-in second lens subassembly 21 of light to leaded-in leaded light 25.

The light guide 25 includes an upper portion 250 and a lower portion 251, the upper portion 250 is located on top of the lower portion 251, and at least a portion of the structure of the upper portion 250 is stacked with the lens assembly along an optical axis direction of the lens assembly, and is annular in cross-section with at least a portion of the structure of the upper portion of the stack of lens assemblies. The upper portion 250 has a convex ring 252 on its inner side, the bottom surface of the convex ring 252 is closely attached to the top surface of the driving device 23, the upper portion 250 is located above the driving device 23, and the lower portion 251 is located on the outer side of the driving device 23, so that the light guide 25 includes a portion surrounding the portion of the outer periphery of the second lens assembly 21 protruding above the driving device 23. In this embodiment, the outer and inner sides of the upper portion 250 are circular in cross-section, the outer periphery of the lower portion 251 is circular in cross-section, the inner side is rectangular in cross-section, and the rectangular inner side of the lower portion 251 is fitted with the rectangular outer periphery of the driving device 23.

The top inner side of the upper portion 251 of the light guide 25 is provided with an inclined side surface 253, and the side surface 253 faces the light incident side of the second lens assembly 21, i.e. a trumpet-shaped inclined light emitting surface is formed at the inner side of the end edge of the side of the light guide 25 far away from the circuit board 11. The angled side 253 can better direct light onto the optical axis of the second lens assembly 21. Specifically, in the present embodiment, the side surface 253 is a conical surface.

The periphery of the light guide member 25 is further provided with a mounting portion 254, and the mounting portion 254 is provided with a glue groove 255. Through setting up gluey groove 255, can glue at gluey inslot 255 and form the viscose portion to bond lid ring 29 on leaded light 25, consequently reduced glue when the rubber coating and climbed to leaded light 25 outer peripheral face and influence the problem of outward appearance and leaded light effect because of phenomenons such as capillary. Specifically, the mounting portion 254 is provided on the outer periphery of the lower portion 251. Specifically, in the present embodiment, the plurality of mounting portions 254 are uniformly arranged along the circumferential direction of the light guide 25. More specifically, the glue groove 255 is opened at the top of the mounting portion 254, the glue groove 255 is arc-shaped, and all the glue grooves 255 on the plurality of mounting portions 254 are located on the same circumference.

The outer side of the light guide 25 is provided with an inclined outer side surface 256, and the inner side surface of the cover ring 29 is bonded to the outer side surface 256 of the light guide 25. Specifically, the mounting portion 254 protrudes out of the outer side surface 256.

The bottom of the light guide 25 facing the light source module 27 is formed with a groove 258. Specifically, the groove 258 opens into the lower portion 251 of the light guide 25. The grooves 258 on the light guide 25 are plural, each groove 258 includes plural accommodating portions, the accommodating portions of each groove 258 are communicated with each other, and each accommodating portion is located substantially at the middle position of the light guide 25 in the direction perpendicular to the optical axis direction of the lens assembly (i.e., in the thickness direction of the light guide 25), that is, for each accommodating portion, the distance from the inner side of the light guide 25 and the distance from the outer side of the light guide 25 are substantially equal. More specifically, each recess 258 includes three pockets, with the center pocket being offset back and forth from the other two pockets.

The bottom of the light guide 25 facing the light source assembly 27 is also provided with fixing posts 259. The four fixing posts 259 are respectively disposed at corresponding positions of the mounting portion 254.

In this embodiment, the light source assembly 27 is disposed at the bottom of the light guide 25. Like this, the light of light source subassembly 27 can get into leaded light spare 25 better, realizes better light supplementation effect to improve the formation of image effect of camera module. Specifically, the light source assembly 27 includes a plurality of light sources 272, and the plurality of light sources 272 are circumferentially disposed at the bottom of the light guide 25. More specifically, in the thickness direction of the light guide 25 (or the radial direction of the light guide 25), each light source 272 is located substantially at the middle position of the light guide 25, that is, for each light source 272, the distance from the inner side of the light guide 25 is substantially equal to the distance from the outer side of the light guide 25, which can improve the uniformity of light guiding of the light guide 25.

The light source module 27 further includes a circuit board 274, and the plurality of light sources 272 are fixed to the circuit board 274. The circuit board 274 includes a rectangular main body portion with an open center on which the light source 272 is disposed. In order to locate each light source 272 substantially at the middle of the light guide 25, the plurality of light sources 272 on each side of the main body portion are offset back and forth in the thickness direction of the light guide 25. Powering the circuit board 274 controls the turning on and off of the light source 272. Specifically, three light sources 272 are disposed on each side of the main body portion, the middle light source 272 is closer to the outer edge of the main body portion than the light sources 272 on the two sides, and the light sources 272 on the two sides are symmetrically disposed on the two sides of the middle light source 272. When the main body portion is circular, all the light sources 272 may be provided on the same circular arc line concentric with the main body portion. When the main body portion is a polygon of another shape, the plurality of light sources 272 on each side of the main body portion are also arranged offset back and forth.

The light source 272 is received in the groove 258 at the bottom of the light guide 25, so that the incident area of light can be increased and the light guide effect can be enhanced. Specifically, one light source 272 is provided in each accommodation portion. Meanwhile, because the light source 272 is accommodated in the groove 258 of the light guide 25, the circuit board 274 can be tightly attached to the bottom of the light guide 25, which is beneficial to the bonding between the light guide 25 and the circuit board 274.

The light source module 27 further includes a mounting plate 276, and the main portion of the circuit board 274 is disposed on the mounting plate 276. The circuit board 274 further includes a second extension portion extending from the main body portion. The mounting plate 276 may be integrally formed with the circuit board 274 or may be separately formed. Specifically, the mounting plate 276 is a rectangular plate, an opening 277 is opened in the middle of the mounting plate 276, and the mounting plate 276 is sleeved on the peripheries of the first lens assembly 19 and the second lens assembly 21.

The side of the mounting plate 276 far away from the light guide 25, that is, the bottom of the mounting plate 276, is opened with a receiving groove 279, a part of the receiving groove 279 corresponds to and abuts against the outer periphery of the base 15, another part corresponds to and abuts against the outer periphery of the driving device 23, and the adhesive is received in the receiving groove 279. During the installation, realize mounting panel 276 and base 15, drive arrangement 23 fixed after the encapsulating solidification in holding tank 279, can play the effect of strengthening to the fixed of leaded light spare 25 and light source subassembly 27, make the connection more firm. In this embodiment, the receiving groove 279 extends along the inner edge of the mounting plate 276, i.e., along the outer edge of the lens assembly. It is understood that the plurality of receiving grooves 279 may be intermittently opened at the inner edge of the mounting plate 276, i.e., intermittently opened along the outer edge of the lens assembly.

The circuit board 274 and the mounting plate 276 are provided with fixing holes 280 corresponding to the fixing posts 259 of the light guide 25, so that the light guide 25 and the light source assembly 27 can be aligned conveniently, and the light guide 25 and the light source assembly 27 can be fixed.

In this embodiment, the cover ring 29 is disposed on the top of the light guide 25, and no glue is applied between the outer surface 256 of the light guide 25 and the surface of the cover ring 29. Specifically, the cover ring 29 may be a separate component, or may be a part of a component directly integrated with the housing of an electronic product such as a mobile phone, or may be a part of the housing directly. The top of the cover ring 29 protrudes from the top of the light guide 25, forming a recess in the top of the light guide 25. Specifically, the cover ring 29 may be a metal ring.

The cover ring 29 includes a connecting portion 292 and a matching portion 294, the connecting portion 292 is disposed at a bottom edge of the matching portion 294, the connecting portion 292 is a flat plate, the matching portion 294 is a cone, the connecting portion 292 covers over the glue groove 255 of the mounting portion 254 of the light guide 25 and is adhered to the light guide 25, and the matching portion 294 is matched with the outer side surface 256 of the light guide 25. Specifically, the width of the connection portion 292 is greater than the width of the glue groove 255, so that the glue groove 255 is completely covered.

In this embodiment, the cover plate 31 covers the top of the light guide 25 (i.e. the end edge of the light guide 25 away from the circuit board 11), and is located on the side of the second lens assembly 21 away from the light sensing element 13, so as to protect the first lens assembly 19 and the second lens assembly 21 and prevent the lens assemblies from being contaminated or damaged. Specifically, the cover plate 31 is closely attached to the top surface of the light guide 25 and is received in the recess formed by the cover ring 29. The end face of the light guide 25 attached to the cover plate 31 is also provided with a glue containing groove so that the cover plate 31 is fixed on the light guide 25.

In this embodiment, the camera module further includes a first protection film 33, and the first protection film 33 is disposed on the top of the cover plate 31 to protect the cover plate 31. The camera module further includes a second protective film 35 and a third protective film (not shown), the second protective film 35 is disposed on the top of the first lens assembly 19 to protect the first lens assembly 19, and the third protective film is disposed on the top of the second lens assembly 21 to protect the second lens assembly 21.

In this embodiment, the camera module further includes a main board 39, the circuit board 11 is electrically connected to the main board 39 through a first connector, and the circuit board 274 is electrically connected to the main board 39 through a second connector. Specifically, the first connector includes a first male seat 392 disposed on the first extending portion of the circuit board 11 and a first female seat 393 disposed on the main board 39, and the first male seat 392 is plugged into the first female seat 393. The second connector comprises a second male seat 395 arranged on a second extension part of the circuit board 274 and a second female seat 396 arranged on the main board 39, the second male seat 395 is inserted in the second female seat 396, and a first steel sheet 398 and a second steel sheet 399 are respectively fixed on the first extension part and the second extension part. Because the height of the circuit board 274 is high, the second extending portion needs to be bent to extend to the main board 39, and the circuit board 11 is substantially flush with the main board 39. The main board 39 is also provided with electronic devices such as capacitors. The motherboard 39 may be a printed circuit board.

The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the above preferred embodiments, but the present invention is not limited to the above embodiments, and any skilled person in the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, but all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the technical scope of the present invention.

Claims (13)

1. The utility model provides a camera module, includes circuit board (11), photosensitive element (13) and camera lens subassembly, a serial communication port, camera module still includes leaded light spare (25) and light source subassembly (27), photosensitive element (13) are located on circuit board (11), and with circuit board (11) electric connection, the camera lens subassembly is located photosensitive element (13) are kept away from one side of circuit board (11), leaded light spare (25) are located the camera lens subassembly outside, keeping away from of light source subassembly (27) one side of leaded light spare (25) has seted up holding tank (279), holding tank (279) correspond and near the periphery of camera lens subassembly.

2. The camera module according to claim 1, wherein the light source assembly (27) comprises a light source (272), a circuit board (274), and a mounting plate (276), the light source (272) being disposed on the circuit board (274), the circuit board (274) being disposed on the mounting plate (276), the receiving groove (279) being formed on the mounting plate (276).

3. The camera module of claim 2, wherein adhesive is disposed within the receiving channel (279) to bond the mounting plate (276) to the lens assembly.

4. The camera module of claim 1, wherein the receiving groove (279) extends along a circumference of the outer edge of the lens assembly, or a plurality of receiving grooves (279) are intermittently formed at the outer edge of the lens assembly.

5. The camera module of claim 1, wherein the lens assembly comprises a first lens assembly (19), a second lens assembly (21), a base (15), and a driving device (23), wherein the first lens assembly (19) is mounted in the base (15), the second lens assembly (21) is mounted in the driving device (23), and a portion of the receiving groove (279) corresponds to and abuts against an outer periphery of the base (15) and another portion corresponds to and abuts against an outer periphery of the driving device (23).

6. The camera module according to claim 5, wherein the base (15) is disposed on the circuit board (11), the base (15) forms a cavity (152), the photosensitive element (13) is accommodated in the cavity (152), the driving device (23) is disposed on a side of the base (15) away from the circuit board (11), and the second lens assembly (21) is disposed on a side of the first lens assembly (19) away from the photosensitive element (13).

7. The camera module of claim 6, wherein the first lens component (19) is a fixed focus lens and the second lens component (21) is a zoom lens.

8. The camera module according to claim 5, wherein the light source assembly (27) has an opening (277) formed in a middle portion thereof, and the light source assembly (27) is sleeved on the outer peripheries of the base (15) and the driving device (23).

9. The camera module of claim 2, wherein the mounting plate (276) is integrally formed with the circuit board (274) or the mounting plate (276) is separately formed from the circuit board (274).

10. The camera module according to claim 2, wherein the light source (272) is disposed at a bottom of the light guide (25), and the light source (272) is substantially located at a middle position of the light guide (25) in a direction perpendicular to an optical axis direction of the lens assembly.

11. The camera module according to claim 10, wherein a bottom of the light guide member (25) facing the light source assembly (27) is formed with a groove (258), and the light source (272) is received in the groove (258).

12. The camera module according to claim 5, further comprising a cover ring (29), wherein the cover ring (29) is disposed on the top of the light guide (25), a mounting portion (254) is further disposed at the outer periphery of the light guide (25), a glue groove (255) is disposed on the mounting portion (254), the glue groove (255) is provided with a glue portion for connecting the light guide (25) and the cover ring (29), the camera module further comprises a cover plate (31), and the cover plate (31) is disposed on the top of the light guide (25) and located on a side of the second lens assembly (21) away from the photosensitive element (13).

13. The camera module of claim 12, further comprising a first protective film (33), a second protective film (35), and a third protective film, wherein the first protective film (33) is disposed on top of the cover plate (31), the second protective film (35) is disposed on top of the first lens assembly (19), and the third protective film is disposed on top of the second lens assembly (21).

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