CN211860261U

CN211860261U - Camera module and electronic equipment

Info

Publication number: CN211860261U
Application number: CN202020108310.6U
Authority: CN
Inventors: 龙林云
Original assignee: Guangzhou Jinghua Precision Optics Co ltd
Current assignee: Guangzhou Jinghua Precision Optics Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-11-03
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a camera module and electronic equipment relates to image acquisition technical field. The camera module comprises a plastic shell, a shielding cover and a lens, wherein the plastic shell comprises a plastic front shell and a plastic rear shell which are fixedly connected to form a closed space; the shielding cover is made of metal and comprises a first shielding cover and a second shielding cover, the first shielding cover is arranged in the plastic front shell, the second shielding cover is arranged in the plastic rear shell, and the shielding cover is positioned in the closed space; the lens is fixedly connected to the plastic front shell. The camera module replaces a closed space formed by combining the plastic shell and the shielding case with an all-metal shell or a plastic electroplating shell in the prior art to meet the high performance requirements of EMC, heat dissipation and the like; compared with the all-metal shell or plastic electroplating shell in the prior art, the cost is greatly reduced, the cost performance of the camera module is improved, and the market demand is met.

Description

Camera module and electronic equipment

Technical Field

The utility model relates to an image acquisition technical field especially relates to a camera module and electronic equipment.

Background

For the safety and comfortable experience of drivers, the current automobile market has introduced a 720P camera module which displays more clear and has higher resolution of 100W pixels.

The transmission mode of the 720P camera module is different from that of the traditional camera, because the improvement of the pixel resolution can cause the special requirement of the transmission path, namely, the connection transmission mode of a coaxial line and a FAKRA socket is adopted, and the socket and the wiring harness used for the transmission have higher requirements compared with the traditional common wiring harness, thereby causing the increase of the cost; the high resolution output means the increase of data volume, and in order to make the time delay not obvious, the method is adopted to increase the transmission rate, namely a higher transmission rate is needed on the socket and the wiring harness, and the transmission rate of the 720P output pixel is in the range of 700M-1G according to different transmission interface chip requirements. The increase of the transmission rate brings the problem of EMC (electromagnetic compatibility), and in order to improve the EMC performance of the product, the traditional method is an all-metal design or an internal electroplating plastic design, which is high in cost; the increase of power can bring simultaneously to high-resolution, has for promoted product heat dispersion for, and traditional way also needs the design through all metal or the plastic design of internal plating to help the heat dissipation, and is with high costs.

Therefore, it is desirable to design a camera module to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camera module to realize with low costs, the sexual valence relative altitude.

To achieve the purpose, the utility model adopts the following technical proposal:

a camera module, comprising:

the plastic shell comprises a plastic front shell and a plastic rear shell, and the plastic front shell and the plastic rear shell are fixedly connected to form a closed space;

the shielding cover is made of metal and comprises a first shielding cover and a second shielding cover, the first shielding cover is arranged in the plastic front shell, the second shielding cover is arranged in the plastic rear shell, and the shielding cover is positioned in the closed space;

and the lens is fixedly connected to the plastic front shell.

Optionally, the device further comprises a circuit board, components for data acquisition, video data processing and data transmission are arranged on the circuit board, and the circuit board is arranged in the closed space.

Optionally, the circuit board is wired with six layers.

Optionally, a connector is further disposed on the circuit board, and the connector is electrically connected to the circuit board.

Optionally, a socket is arranged on the plastic rear shell, and the connector can be electrically connected with the socket.

Optionally, a positioning column is arranged on the plastic front shell, and a positioning hole matched with the positioning column is arranged on the circuit board.

Optionally, the plastic shell is made of PBT + GF 30%.

Optionally, the shield is made of stainless steel.

Optionally, the camera module further comprises a waterproof ring, and the waterproof ring is arranged between the plastic front shell and the plastic rear shell.

Another object of the present invention is to provide an electronic apparatus, which has low cost and high performance-price ratio, and meets the market demand.

an electronic device comprises the camera module.

The utility model has the advantages that:

the camera module provided by the utility model has the advantages that the closed space formed by combining the plastic shell and the shielding case replaces the all-metal shell or the plastic electroplating shell in the prior art to meet the high performance requirements of EMC, heat dissipation and the like; moreover, the cost of the all-metal shell in the prior art is higher than the cost of the combination of the plastic shell and the shielding case; when the plastic electroplating shell is electroplated, the selection of the plastic material needs to comprehensively consider the factors of the processing performance of the plastic material, the difficulty degree of electroplating, the dimensional precision and the like, and the process is complex and the cost is high. The utility model provides a camera module cost is reduced a lot, has improved the price/performance ratio, satisfies the market demand.

Drawings

Fig. 1 is an exploded schematic view of a camera module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a camera module according to an embodiment of the present invention.

In the figure:

1. a plastic shell; 2. a shield case; 3. a circuit board; 4. a lens; 5. a socket; 7. a waterproof ring; 8. a connector;

11. a plastic front shell; 12. a plastic rear shell; 21. a first shield case; 22. a second shield case; 31. positioning holes; 61. a first screw; 62. a second screw;

111. and a positioning column.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the present embodiment provides a camera module, which includes a plastic housing 1, a shielding case 2 and a lens 4, wherein the plastic housing 1 includes a plastic front shell 11 and a plastic rear shell 12, and the plastic front shell 11 and the plastic rear shell 12 are fixedly connected to form a closed space; the shielding case 2 is made of metal, the shielding case 2 comprises a first shielding case 21 and a second shielding case 22, the first shielding case 21 is arranged in the plastic front shell 11, the second shielding case 22 is arranged in the plastic rear shell 12, and the shielding case 2 is positioned in the closed space; the lens 4 is fixedly connected to the plastic front shell 11.

In the camera module provided by the embodiment, the closed space formed by combining the plastic shell 1 and the shielding case 2 replaces an all-metal shell or a plastic electroplating shell in the prior art to meet high performance requirements of EMC, heat dissipation and the like; moreover, the cost of the all-metal shell in the prior art is higher than the cost of the combination of the plastic shell 1 and the shielding case 2; when the plastic electroplating shell is electroplated, the selection of the plastic material needs to comprehensively consider the factors of the processing performance of the plastic material, the difficulty degree of electroplating, the dimensional precision and the like, and the process is complex and the cost is high. The camera module cost that this embodiment provided has reduced a lot, has improved the price/performance ratio of camera module, satisfies the market demand.

In the present embodiment, an opening is provided on the plastic front shell 11, and the opening on the plastic front shell 11 is used for installing the lens 4. The lens 4 and the plastic front shell 11 are fixedly connected through AA focusing and focusing by glue. The plastic front shell 11 and the plastic rear shell 12 are fixedly connected by a first screw 61. Cost optimization is achieved by plastication and miniaturization of the plastic front housing 11 and the plastic rear housing 12.

Optionally, the camera module further comprises a waterproof ring 7, and the waterproof ring 7 is arranged between the plastic front shell 11 and the plastic rear shell 12. In this embodiment, a rubber waterproof ring is used between the plastic front shell 11 and the plastic rear shell 12 to meet the protection requirement of IP6K 9K.

Optionally, the plastic housing 1 is made of PBT + GF 30%. The shield case 2 is made of stainless steel. In this embodiment, the height of the plastic front shell 11 is 8.9mm, and the height of the plastic rear shell 12 is 6 mm. The first shielding case 21 is fixedly connected with the plastic front shell 11, and the second shielding case 22 is clamped in the plastic rear shell 12. The shield case 2 is made of stainless steel for improving EMC and heat dissipation performance. The plastic shell 1 and the shielding case 2 are combined, the cost is lower than that of an all-metal shell or an electroplated plastic shell, the EMC and the heat dissipation performance cannot be reduced too much, and the requirements of customers and markets can be met completely.

Optionally, the camera module further comprises a circuit board 3, components for data acquisition, video data processing and data transmission are arranged on the circuit board 3, and the circuit board 3 is arranged in the closed space. In this embodiment, the circuit board 3 is mounted with components, and the first shielding case 21 and the circuit board 3 are fixedly connected to the plastic front case 11 by the second screws 62.

Specifically, the circuit board 3 lays six layers of wiring. In the present embodiment, the length, width and height of the circuit board 3 are 17mm, 17mm and 1.2mm, respectively. The selection of components is minimized as much as possible, and if the used chip capacitor and chip resistor are packaged by 0201; six layers of circuits are designed on the circuit board 3, all functional components are concentrated on one circuit board 3, the height of the module can be reduced to the maximum extent, and the height of the module is minimized. The reduction in the module height means a reduction in the material of the plastic front housing 11 and the plastic rear housing 12, which reduces the cost of the plastic front housing 11 and the plastic rear housing 12.

Optionally, a connector 8 is further disposed on the circuit board 3, and the connector 8 is electrically connected to the circuit board 3. In the present embodiment, the connector 8 is attached to the circuit board 3 by SMT patches. The connector 8 is selected to be miniaturized so as to occupy a small space of the circuit board 3.

Optionally, a socket 5 is provided on the plastic rear shell 12, and the connector 8 can be electrically connected with the socket 5. Data processed by the circuit board 3 are transmitted to the display screen through the connector 8 and the socket 5, and video information collected by the camera module is displayed. The camera module in this embodiment is applicable to and shows more clear, the higher 100W pixel camera module of resolution ratio, adopts the FAKRA socket.

Optionally, the plastic front housing 11 is provided with a positioning column 111, and the circuit board 3 is provided with a positioning hole 31 adapted to the positioning column 111. The positioning columns 111 and the positioning holes 31 can realize the pre-positioning between the plastic front shell 11 and the circuit board 3, so that the second screws 62 can quickly connect the circuit board 3 with the plastic front shell 11. In the present embodiment, two positioning columns 111 and two positioning holes 31 are provided, the positioning columns 111 are disposed diagonally on the plastic front housing 11, and the positioning holes 31 are also disposed diagonally at corresponding positions of the circuit board 3. Of course, in other embodiments, the number of the positioning columns 111 and the positioning holes 31 is not limited, and may be set to be one.

The selection of the components mainly comprises a small-volume SOC integrating a light sensing chip SENSOR and a video signal processing chip ISP, the arrangement of the components can be reduced by the SOC, and compared with two integrated circuits of the SENSOR and the ISP, the circuit board 3 occupied by the SOC is small in area. When designing the circuit board 3, all the chip components are collectively laid out on one circuit board 3. Compared with the traditional design of a plurality of circuit boards 3 and the up-and-down laminated assembly of a plurality of circuit boards 3, the height of the module can be reduced to the maximum extent, so that the height of the module is the minimum; and the connectors 8 among a plurality of circuit boards 3 can be eliminated, so that the cost is reduced.

When the camera module provided by the embodiment is assembled, the first shielding cover 21 is placed into the plastic front shell 11, then the circuit board 3 adhered with the connector 8 is placed into the plastic front shell, the circuit board 3 and the first shielding cover 21 are fastened inside the plastic front shell 11 by using the second screw 62, and the side edge of the first shielding cover 21 is adhered to the circuit board 3. The lens 4 is placed in the opening of the plastic front shell 11, and is focused, glued and fixed through the AA process to form an assembly front section. The socket 5 is mounted on the plastic rear shell 12, and the second shielding cover 22 is clamped in the plastic rear shell 12 to form an assembly rear section. Then the assembly front section and the assembly rear section are combined together, and a waterproof ring 7 is placed in the middle; then the assembly front section and the assembly rear section are fixed by the first screw 61, and finally a high-performance-ratio high-definition camera module is assembled, wherein the length, the width and the height can be 23mm, 23mm and 29.6mm respectively. The camera module that this embodiment provided is small, is suitable for arranging at the automobile body of car, especially inside left and right rear-view mirror.

This embodiment still provides an electronic equipment, includes above-mentioned camera module. The electronic equipment is low in cost and high in cost performance, and can meet market demands.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a camera module which characterized in that includes:

the plastic shell (1), the plastic shell (1) comprises a plastic front shell (11) and a plastic rear shell (12), and the plastic front shell (11) and the plastic rear shell (12) are fixedly connected to form a closed space;

the shielding case (2) is made of metal, the shielding case (2) comprises a first shielding case (21) and a second shielding case (22), the first shielding case (21) is arranged in the plastic front shell (11), the second shielding case (22) is arranged in the plastic rear shell (12), and the shielding case (2) is located in the closed space;

the lens (4), lens (4) fixed connection in before the plastic on shell (11).

2. The camera module according to claim 1, further comprising a circuit board (3), wherein components for data acquisition, video data processing and data transmission are disposed on the circuit board (3), and the circuit board (3) is disposed in the enclosed space.

3. The camera module according to claim 2, characterized in that the circuit board (3) is wired with six layers.

4. The camera module according to claim 3, wherein a connector (8) is further disposed on the circuit board (3), and the connector (8) is electrically connected to the circuit board (3).

5. The camera module according to claim 4, wherein a socket (5) is disposed on the plastic rear housing (12), and the connector (8) is electrically connectable to the socket (5).

6. The camera module according to claim 2, wherein the plastic front housing (11) is provided with a positioning post (111), and the circuit board (3) is provided with a positioning hole (31) adapted to the positioning post (111).

7. The camera module according to claim 1, characterized in that the shielding cage (2) is made of stainless steel.

8. The camera module according to claim 1, further comprising a waterproof ring (7), wherein the waterproof ring (7) is disposed between the plastic front shell (11) and the plastic rear shell (12).

9. An electronic device, comprising the camera module according to any one of claims 1 to 8.