CN211791710U

CN211791710U - Camera module

Info

Publication number: CN211791710U
Application number: CN202020619228.XU
Authority: CN
Inventors: 王卓; 黄东平
Original assignee: Kunshan Q Technology Co Ltd
Current assignee: Kunshan Q Technology Co Ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-10-27
Anticipated expiration: 2030-04-22

Abstract

The utility model provides a camera module, including voice coil motor and circuit board, voice coil motor has the elasticity conductive terminal that is used for signal connection, and voice coil motor sets up on the circuit board to be connected through elasticity conductive terminal and circuit board electricity, elasticity conductive terminal elasticity butt is on the circuit board. The utility model discloses a with elasticity conductive terminal and circuit board elasticity butt, can guarantee that elasticity conductive terminal and circuit board keep the continuation contact, saved the flow of some tin welding, save camera module production time raise the efficiency, also improved the yield of camera module.

Description

Camera module

Technical Field

The utility model relates to a camera technical field especially relates to a camera module.

Background

With the development of multimedia technology, camera modules are widely applied to electronic devices, especially to electronic devices such as mobile phones and tablets carried by users. The camera module is internally provided with a motor for realizing the automatic focusing function so as to achieve the effect of changing the depth of field. In the production flow of the camera, the motor base is glued, and then the motor is assembled and welded.

What use at present is to let motor leg and circuit board pad connect through soldering tin and switch on, but because present camera module pursues the volume miniaturization, the some tin space undersize that often can appear reserving the motor leg leads to the tin cream to produce with the leg contact too little and go up bad or empty phenomenon of welding etc. and then reduce the yield of camera module.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camera module has improved the production efficiency and the yield of camera module.

The utility model provides a camera module, include:

a voice coil motor having elastic conductive terminals for signal connection;

the voice coil motor is arranged on the circuit board and is electrically connected with the circuit board through the elastic conductive terminals, and the elastic conductive terminals are elastically abutted against the circuit board.

Furthermore, the voice coil motor comprises a base, and the elastic conductive terminals are arranged on the base and extend out of the base to be elastically abutted to the circuit board.

Furthermore, the elastic conductive terminal comprises a needle tube, a spring and a needle shaft, a cavity is arranged in the needle tube, the spring is contained in the needle tube, the needle shaft is inserted in the needle tube and can compress the spring, and the spring is used for enabling the needle shaft to do telescopic motion along the axial direction of the needle tube.

Furthermore, one end of the needle tube is provided with an opening, the inner diameter of the opening is smaller than that of the needle tube, and the needle shaft extends out of or retracts into the opening.

Furthermore, the pin shafts of the elastic conductive terminals are elastically abutted against the bonding pads of the circuit board.

Further, the contact surface of the needle shaft and the spring is a bevel edge.

Furthermore, a conductive piece is arranged in the base, and the elastic conductive terminal is electrically connected with the voice coil motor through the conductive piece.

Furthermore, the conductive piece and the needle tube are fixedly connected in a spot welding mode.

Further, the conductive piece is embedded into the base in an injection molding mode.

Further, the conductive piece is a copper sheet or an aluminum sheet.

The utility model provides a camera module, through the elasticity conductive terminal and the circuit board elasticity butt that adopt the voice coil motor, can guarantee that elasticity conductive terminal and circuit board keep the continuation contact, saved the flow of prior art mid point tin welding, avoided because the tin cream contacts phenomenon such as bad or empty welding with the leg contact too little and produce tin, save camera module production time raise the efficiency, also improved the yield of camera module.

Drawings

Fig. 1 is the embodiment of the present invention provides a schematic structural diagram of a camera module.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is the embodiment of the utility model provides an in the structure schematic diagram of camera module, as shown in fig. 1, the embodiment of the utility model provides a camera module, including voice coil motor 1 and circuit board (not shown), voice coil motor 1 sets up on the circuit board to voice coil motor 1 has the elasticity conductive terminal 10 that is used for signal connection, and elasticity conductive terminal 10 is connected with the circuit board electricity, and elasticity conductive terminal 10 elasticity butt realizes switching on of voice coil motor 1 and circuit board on the circuit board.

The voice coil motor 1 includes a base 2, and the base 2 is connected to the bottom of the voice coil motor 1, but not limited thereto, and the base 2 may be integrally formed with the voice coil motor 1. Specifically, two elastic conductive terminals 10 are provided, which are a positive terminal and a negative terminal connected to the circuit board, and are disposed on the base 2 and extend from the base 2 toward the circuit board to elastically abut against the circuit board.

More specifically, the camera module further includes a filter support (not shown) and an imaging chip (not shown), where the filter support is connected to the base 2 and can be disposed at the bottom of the base 2 in a pasting manner, that is, the lower surface of the base 2 is pasted on the upper surface of the filter support. The imaging chip is attached to the circuit board and electrically connected to the circuit board. The optical filter supporting seat is attached to the circuit board, and the optical filter is arranged corresponding to the light incident side of the imaging chip so as to filter out invisible infrared light. Therefore, the optical filter supporting seat and the imaging chip are arranged between the base 2 of the voice coil motor 1 and the circuit board, and external light sequentially passes through the lens and the optical filter to reach the imaging chip for imaging.

The filter support base is provided with an avoiding hole (not shown) corresponding to the position of the elastic conductive terminal 10, so that the elastic conductive terminal 10 extends out of the base 2 and can pass through the avoiding hole to be connected to the circuit board.

In this embodiment, the elastic conductive terminal 10 includes a needle tube 11, a spring 12 and a needle shaft 13, the needle tube 11 has a cavity therein, the spring 12 is accommodated in the cavity of the needle tube 11 for connecting the needle shaft 13 with the needle tube 11, one end of the spring is connected to the top end of the needle shaft 13, and the other end of the spring is connected to the top of the cavity of the needle tube 11. The needle shaft 13 is inserted in the needle tube 11 and can compress the spring 12, and the spring 12 is used for making the needle shaft 13 do telescopic movement along the axial direction of the needle tube 11, so that the needle shaft 13 can be movably arranged in the cavity of the needle tube 11. During assembly, the needle shaft 13, the spring 12 and the needle tube 11 are riveted together.

Specifically, the needle shaft 13 includes a head portion 131 and a tail portion 132 in an integral structure, the head portion 131 is the bottom portion in the direction shown in the figure, and the tail portion 132 is the top portion in the direction shown in the figure; the needle tube 11 is sleeved outside the needle shaft 13, the tail part 132 of the needle shaft 13 is located in the cavity of the needle tube 11, and the head part 131 extends out of the cavity of the needle tube 11.

For the convenience of installation, the head 131 of the needle shaft 13 can extend out of the needle tube 11 and can not completely slide out, and a limit step 133 is further arranged at the joint of the head 131 and the tail 132, so that the tail 132 is clamped inside the needle tube 11 when the head 131 extends out of the needle tube 11. Of course, the limiting step 133 may also adopt other limiting structures, and is not limited thereto.

In this embodiment, an opening 111 is formed at one end of the needle tube 11, the opening 111 is formed by extending and enclosing the lower end of the needle tube 11 obliquely downward, the inner diameter of the opening 111 is smaller than the inner diameter of the needle tube 11, and the outer diameter of the head 131 of the needle shaft 13 is equal to the inner diameter of the opening 111, so that the head 131 of the needle shaft 13 can stably extend out of or retract into the opening 111. When the head 131 of the needle shaft 13 is fully extended, the limit step 133 of the needle shaft 13 is abutted with the extension edge of the opening 111.

Furthermore, the circuit board is provided with a pad corresponding to the connection point of the elastic conductive terminal 10, when in use, the pin shaft 13 of the elastic conductive terminal 10 is elastically abutted against the pad of the circuit board, so that the circuit board is in signal conduction with the voice coil motor 1, and at this time, the spring 12 contracts, so that the head 131 of the pin shaft 13 is correspondingly and stably contacted with the pad on the circuit board. When slight vibration occurs, the spring 12 contracts or expands correspondingly, so that the head 131 of the needle shaft 13 is always in stable contact with the pad of the circuit board, and smooth circuit conduction is ensured. The phenomena of poor tin feeding or empty soldering and the like caused by over-small tin-dispensing space when a soldering pin of the voice coil motor 1 and a circuit board soldering pad are connected in a tin-dispensing mode in the prior art are avoided.

Preferably, the end surface of the head 131 of the needle shaft 13 is designed to be a spherical surface, so as to ensure that the head 131 is in point-to-point contact with a circuit board pad; the end face of the tail part 132 is designed to be an inclined plane, that is, the contact surface between the needle shaft 13 and the spring 12 is an inclined edge, so that the needle shaft 13 is inclined in the moving process, the contact area between the needle shaft 13 and the inner wall of the needle tube 11 is increased, the impedance is reduced, and the conductivity is improved. In order to realize good electrolytic performance, the needle shaft 13 is made of brass or aluminum; in order to achieve good corrosion resistance, the needle tube 11 is made of a strong corrosion-resistant material, specifically, a stainless steel material.

In the present embodiment, a conductive member 21 is disposed in the base 2, and the elastic conductive terminal 10 is electrically connected to the voice coil motor 1 through the conductive member 21. In assembly, the conductive member 21 is embedded in the base 2 by injection molding, and the conductive member 21 and the needle tube 11 are fixedly connected by spot welding. The conductive member 21 is a copper sheet or an aluminum sheet for good conductivity.

The utility model provides a camera module, through the elasticity conductive terminal 10 and the circuit board elasticity butt that adopt voice coil motor 1, can guarantee that elasticity conductive terminal 10 keeps the continuity contact with the circuit board, saved the flow of prior art mid point tin welding, avoided because the tin cream contacts phenomenon such as too few and produce tin bad or empty solder with the leg, save camera module production time raise the efficiency, also improved the yield of camera module.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

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

a voice coil motor having elastic conductive terminals for signal connection;

2. The camera module of claim 1, wherein the voice coil motor includes a base, and the resilient conductive terminals are disposed on the base and extend from the base to resiliently engage the circuit board.

3. The camera module as claimed in claim 2, wherein the resilient conductive terminal comprises a needle tube, a spring and a needle shaft, the needle tube has a cavity therein, the spring is received in the needle tube, the needle shaft is inserted in the needle tube and can compress the spring, and the spring is used for making the needle shaft perform a telescopic motion along an axial direction of the needle tube.

4. The camera module of claim 3, wherein an end of said needle tube is provided with an opening, an inner diameter of said opening is smaller than an inner diameter of said needle tube, and said needle shaft is extended or retracted from said opening.

5. The camera module of claim 3, wherein said pin shafts of said resilient conductive terminals resiliently abut against pads of said circuit board.

6. The camera module of claim 3, wherein the contact surface of the pin shaft and the spring is a beveled edge.

7. The camera module of claim 3, wherein a conductive member is disposed in the base, and the resilient conductive terminal is electrically connected to the voice coil motor through the conductive member.

8. The camera module of claim 7, wherein the conductive member is fixedly connected to the needle tube by spot welding.

9. The camera module of claim 7, wherein the conductive member is embedded in the base by injection molding.

10. The camera module of claim 7, wherein the conductive member is a copper sheet or an aluminum sheet.