CN102566208A - Camera module and portable electronic device - Google Patents

Abstract

The invention relates to a camera module, which comprises a mirror base and a circuit board connected with the mirror base. The mirror base has a bottom end. The circuit board is arranged at the bottom. The circuit board has an upper surface opposite to the bottom, a lower surface away from the upper surface, and a side connecting the upper surface and the lower surface. At least two positioning posts are formed on the edge of the bottom end facing the surface of the circuit board. The side of the circuit board is provided with at least two positioning portions which cooperate with the at least two positioning columns to position the circuit board and the bottom end. The invention also relates to a portable electronic device with the camera module.

Description

Camera modules and portable electronic devices

technical field

The invention relates to a camera module and a portable electronic device using the camera module.

Background technique

With the development of the camera industry, camera modules are widely used in various camera devices. Various portable electronic devices (such as mobile phones, digital cameras, computers, etc.) with built-in camera modules are favored by consumers.

A camera module usually includes a mirror base and a circuit board connected with the mirror base. The mirror base and the circuit board are generally fixed as a whole by means of positioning columns and positioning holes.

However, if the size of the mirror base is fixed and a larger sensor is required, the area where other electronic components (such as capacitors, resistors, etc.) The slow heat dissipation of components and sensors also makes it difficult to arrange other electronic components, which not only affects the imaging quality of the camera module, but also affects the assembly efficiency of the camera module.

Contents of the invention

In view of this, it is necessary to provide a camera module with better heat dissipation effect and a portable electronic device using the camera module.

A camera module includes a mirror base and a circuit board connected with the mirror base, and the mirror base has a bottom end. The circuit board is arranged at the bottom. The circuit board has an upper surface opposite to the bottom, a lower surface away from the upper surface, and a side connecting the upper surface and the lower surface. At least two positioning posts are formed on the edge of the bottom end facing the surface of the circuit board. The side of the circuit board is provided with at least two positioning portions which cooperate with the at least two positioning columns to position the circuit board and the bottom end.

A portable electronic device includes an electronic device body and the above-mentioned camera module set on the electronic device body.

Compared with the prior art, the positioning column and the positioning part of the camera module in the embodiment of the present invention are respectively arranged on the edge of the surface facing the circuit board at the bottom end and the side of the circuit board, therefore, it is arranged on the circuit board The area where the electronic components can be set between the image sensor and the inner wall of the base is relatively large, which directly makes the heat dissipation of the electronic components and the image sensor faster, and also makes the installation of the electronic components easier, which not only improves the imaging quality of the camera module, but also improves Improve the assembly efficiency of the camera module.

Description of drawings

FIG. 1 is a schematic perspective view of a portable electronic device provided by a first embodiment of the present invention.

FIG. 2 is a schematic perspective view of a camera module of the portable electronic device in FIG. 1 .

FIG. 3 is an exploded schematic view of the camera module in FIG. 2 .

FIG. 4 is an exploded schematic view of the lens holder and the circuit board of the camera module provided by the second embodiment of the present invention.

FIG. 5 is an exploded schematic view of the lens holder and the circuit board of the camera module provided by the third embodiment of the present invention.

Description of main component symbols

Portable Electronic Devices 100

Electronic device body 10

Camera module 30, 30a, 30c

mirror holder 40

Lens barrel 50

Circuit board 60, 60a, 60c

Image sensor 70

Electronic components 80

Main Department 401

Base 403

Top plate 4031

Bottom 4033, 4033a, 4033c

Containment chamber 4035

Positioning column 4037, 4037a, 4037c

Positioning surface 4039, 4039a, 4039c

Upper surface 601

Lower surface 603

Side 605

Positioning Department 607, 607a, 607c

Detailed ways

The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Referring to FIG. 1 , a portable electronic device 100 provided by a first embodiment of the present invention includes an electronic device body 10 and a camera module 30 disposed on the electronic device body 10 .

Please refer to FIG. 2 and FIG. 3 together. The camera module 30 includes a lens holder 40, a lens barrel 50 containing lenses (not shown), a circuit board 60 arranged on the electronic device body 10, and a circuit board 60 arranged on the electronic device body 10. The image sensor 70 on the circuit board 60 and an electronic component 80 disposed on the circuit board 60 .

The mirror base 40 has a hollow main body 401 for accommodating the lens barrel 50 and a hollow base 403 connected to the main body 401 .

The base 403 is connected to the main body 401 , and has a top plate 4031 , a bottom end 4033 opposite to the top plate 4031 , and a receiving chamber 4035 passing through the top plate 4031 and the bottom end 4033 and communicating with the main body 401 . The top plate 4031 is used to support the main body 401 . The accommodating cavity 4035 is used for accommodating the image sensor 70 . In this embodiment, the base 403 is a square structure. Of course, the base 403 can also be a circular structure, a triangular prism structure, a pentagonal prism structure and other structures.

At least two positioning posts 4037 are formed on the edge of the bottom end 4033 facing the surface of the circuit board 60 . Preferably, in this embodiment, there are three positioning posts 4037 and they are distributed at three corners of the square bottom end 4033 . Of course, the number of positioning columns 4037 can also be two, four or more.

Each positioning column 4037 has a positioning surface 4039 . In this embodiment, the section of each positioning column 4037 is fan-shaped, and the positioning surface 4039 is arc-shaped.

The circuit board 60 has an upper surface 601 opposite to the bottom end 4033, a lower surface 603 away from the upper surface 601, a side 605 connecting the upper surface 601 and the lower surface 603, and at least two positioning positions on the side 605. Section 607.

At least two positioning portions 607 cooperate with at least two positioning posts 4037 to position the circuit board 60 and the bottom end 4033 . Each positioning portion 607 cooperates with a positioning surface 4039 to position the circuit board 60 and the bottom end 4033 . In this embodiment, each positioning portion 607 is an arc-shaped groove, and the opening of each positioning portion 607 is away from the center of the circuit board 60 .

The image sensor 70 is disposed on the upper surface 601 of the circuit board 60 and opposite to the lens barrel 50 . The external light irradiates the lens in the lens barrel 50 , and then enters the image sensor 70 through the lens.

The electronic component 80 is disposed on the upper surface 601 of the circuit board 60 for improving the performance of the image sensor 70 . In this embodiment, the electronic component 80 is a capacitor. Of course, the electronic component 80 can also be other components that can improve the performance of the image sensor 70 such as resistors.

Since the positioning column 4037 and the positioning portion 607 are respectively arranged on the edge of the bottom end 4033 facing the surface of the circuit board 60 and the side surface 605 of the circuit board 60, the area where the electronic component 80 can be arranged between the image sensor 70 and the inner wall of the base 403 is relatively large. , directly makes the electronic component 80 and the image sensor 70 dissipate heat faster, and also makes the arrangement of the electronic component 80 easier, thereby not only improving the imaging quality of the camera module 30, but also improving the assembly efficiency of the camera module 30. In addition, since there are three positioning posts 4037 and they are distributed at three corners of the bottom end 4033 , the three positioning posts 4037 have a fool-proof function when the circuit board 60 and the bottom end 4033 are assembled.

Please refer to FIG. 4, the camera module 30a provided by the second embodiment of the present invention is substantially the same as the camera module 30, which includes a bottom end 4033a and a circuit board 60a. There are two in number and located on the diagonal of the bottom end 4033a. The cross-section of the positioning post 4037a is square, the positioning surface 4039a of the positioning post 4037a is L-shaped, and the positioning portion 607a of the circuit board 60a is L-shaped.

Please refer to Fig. 5, the camera module 30c provided by the third embodiment of the present invention is substantially the same as the camera module 30, which includes a bottom end 4033c and a circuit board 60c, the difference lies in: the number of positioning posts 4037c at the bottom end 4033c There are two in number and located on the diagonal of the bottom end 4033c. The cross section of the positioning post 4037c is triangular, the positioning surface 4039c of the positioning post 4037c is square, and the positioning part 607c of the circuit board 60c is a square section.

In addition, those skilled in the art can also make other changes within the spirit of the present invention. Of course, these changes made according to the spirit of the present invention should be included within the scope of protection claimed by the present invention.

Claims (8)

1. A camera module, comprising a mirror base and a circuit board connected to the mirror base, the mirror base has a bottom, the circuit board is located at the bottom, and the circuit board has a An upper surface of the upper surface, a lower surface away from the upper surface, and a side connecting the upper surface and the lower surface, characterized in that at least two positioning posts are formed on the edge of the bottom end facing the surface of the circuit board, the The side of the circuit board is provided with at least two positioning parts which cooperate with the at least two positioning columns to position the circuit board and the bottom end. 2. The camera module according to claim 1, wherein the positioning post has a positioning surface facing the positioning portion, and the positioning portion cooperates with the positioning surface to position the circuit board and the bottom end. 3 . The camera module according to claim 2 , wherein the bottom end is square, and the at least two positioning posts are respectively located at at least two corners of the four corners of the bottom end. 4 . 4. The camera module according to claim 3, wherein the positioning portion is a groove, and the opening of the positioning portion is away from the center of the circuit board. 5 . The camera module according to claim 4 , wherein the cross section of the positioning post is fan-shaped, and the positioning surface of the positioning post is arc-shaped. 6 . The camera module according to claim 4 , wherein the cross-section of the positioning post is square, and the positioning surface of the positioning post is L-shaped. 7 . The camera module according to claim 3 , wherein the cross-section of the positioning post is triangular, the positioning surface of the positioning post is square, and the positioning portion is a cut surface. 8. A portable electronic device comprising an electronic device body, characterized in that the portable electronic device further comprises a camera module as claimed in any one of claims 1 to 7, the camera module is arranged on the electronic on the device body.

Images