CN215187016U - Camera module and terminal equipment - Google Patents

Abstract

The disclosure relates to a camera module and a terminal device. Wherein, camera module includes: a lens driving member; the pin is connected with the lens driving piece and comprises a body part and a contact part arranged on the body part; a circuit board provided with a contact corresponding to the contact portion; wherein the contact portion abuts against the contact. This is disclosed, and the mode of the contact portion through the pin and the contact butt on the circuit board realizes the electric conduction between camera lens driving piece and the circuit board. Compared with a welding mode, on one hand, welding equipment and welding materials are not needed, cost is saved, on the other hand, the rejection rate is reduced, and repair and installation are easy.

Description

Camera module and terminal equipment

Technical Field

The present disclosure relates to the field of camera shooting technology, and in particular, to a camera module and a terminal device.

Background

With the continuous progress of science and technology, the image capturing technology is widely applied in daily life. For example, a camera module is installed in a terminal device such as a mobile phone, a tablet computer, and a notebook computer. Moreover, the functions of the camera module, such as auto-focusing and auto-anti-shake functions, are increasing.

The driving motor drives the lens to move so as to realize the automatic focusing or automatic anti-shake function of the lens. The pins of the drive motor are typically soldered to a circuit board to power and transmit data to the drive motor.

However, the pins of the driving motor are soldered on the pads of the circuit board through a soldering process, and on one hand, the soldering equipment has high cost and large floor space. On the other hand, if the welding is poor, secondary processing cannot be carried out, and only waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art, the present disclosure provides a camera module and a terminal device.

According to a first aspect of embodiments of the present disclosure, there is provided a camera module including: a lens driving member; the pin is connected with the lens driving piece and comprises a body part and a contact part arranged on the body part; a circuit board provided with a contact corresponding to the contact portion; wherein the contact portion abuts against the contact.

According to some embodiments of the present disclosure, the pin includes an elastic portion having one end connected to the body portion and the other end connected to the contact portion, wherein the elastic portion is compressed in a state where the contact portion abuts against the contact.

According to some embodiments of the present disclosure, the body portion extends toward the circuit board, the elastic portion is located inside the body portion, and the contact portion is telescopically disposed at a free end of the body portion.

According to some embodiments of the present disclosure, the body portion is a hollow cylinder; the contact part is a sphere or a hemisphere, wherein at least part of the sphere or the hemisphere is exposed out of the hollow cylinder.

According to some embodiments of the present disclosure, the elastic portion is a spring or a leaf spring.

According to some embodiments of the disclosure, the circuit board is provided with a groove, and the contact is located in the groove.

According to some embodiments of the present disclosure, at least a portion of the contact portion is located within the groove in a state where the contact portion abuts against the contact.

According to some embodiments of the present disclosure, a camera module includes: the lens driving piece is fixed on the seat body; the base is arranged between the base body and the circuit board; wherein, the pedestal is fixed in the base.

According to some embodiments of the present disclosure, a camera module includes: the lens is connected with the lens driving piece, and the lens driving piece drives the lens to move.

According to a second aspect of the embodiments of the present disclosure, there is provided a terminal device, including: as in the first aspect described above, the camera module of any of the embodiments.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the camera module of this disclosure, the mode of the contact portion through the pin and the contact butt on the circuit board realizes the electric conduction between camera lens driving piece and the circuit board. Compared with a welding mode, on one hand, welding equipment and welding materials are not needed, cost is saved, on the other hand, the rejection rate is reduced, and repair and installation are easy.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of a camera module according to an exemplary embodiment of the present disclosure.

Fig. 2 is a schematic diagram illustrating a pin-to-circuit board connection structure according to an exemplary embodiment of the present disclosure.

Fig. 3 is a cross-sectional view illustrating a pin-to-circuit board connection structure according to an exemplary embodiment of the present disclosure.

Fig. 4 is a schematic diagram illustrating an enlarged structure of a pin according to an exemplary embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a terminal device shown according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a schematic structural diagram of a camera module according to an exemplary embodiment of the present disclosure. Fig. 5 is a schematic structural diagram of a terminal device shown according to an exemplary embodiment of the present disclosure.

As shown in fig. 1 and 5, the camera module 100 provided by the present disclosure may be applied to a terminal device 200, and the terminal device 200 may be a smart phone, a tablet computer, a notebook computer, a wearable device such as a smart band and a smart watch, a camera, a video camera, a driving recorder, and the like.

Taking a smart phone as an example, light from an object to be photographed is refracted and adjusted by a lens of the camera module 100, and then projected to the image sensor, and the image sensor converts light information into digital information, and the digital information is processed by an internal processor of the smart phone and displayed on a screen.

The camera module 100 may have Auto Focus (AF), zoom, and anti-shake functions. For example, the lens may be relatively moved with respect to the image sensor to perform focusing. For another example, the lenses of the lens may be relatively displaced to focus.

The anti-shake function can be used to eliminate imaging blur caused by shake of the terminal device to obtain a clearer image. The shaking of the terminal device may be a vibration (shaking) or rotation caused by the user holding the terminal device in his hand or a vibration (shaking) or rotation caused during movement of a mobile device carrying the terminal device. The moving device may be, for example, a moving frame or a traveling vehicle. The pitch and yaw angles of the camera module may be sensed by position sensors, such as hall sensors.

Fig. 2 is a schematic diagram illustrating a pin-to-circuit board connection structure according to an exemplary embodiment of the present disclosure. Fig. 3 is a cross-sectional view illustrating a pin-to-circuit board connection structure according to an exemplary embodiment of the present disclosure. Fig. 4 is a schematic diagram illustrating an enlarged structure of a pin according to an exemplary embodiment of the present disclosure.

As shown in fig. 1-4, a camera module 100 according to an embodiment of the present disclosure may include a lens driver (not shown), a pin 40, and a circuit board 60.

The lens driving part is used for driving the lens to move so as to realize the automatic focusing or anti-shaking function. For example, the lens driving member may be a voice coil motor, and the voice coil motor is fixed to the holder body 30. The holder body 30 has a receiving hole 31 for receiving a lens, and a screw 32 may be provided on an inner wall of the receiving hole 31, and a barrel screw of the lens is screw-fitted to the receiving hole 31.

The pin 40 is connected to the lens driver, and the lens driver is connected to the circuit board 60 through the pin 40 to supply power and transmit data to the lens driver. The pin 40 may include a body portion 41 and a contact portion 42 disposed on the body portion 41, where the body portion 41 is used for supporting the contact portion 42, and the contact portion 42 is used for conducting with the circuit board 60. In one example, the contact portion 42 may be directly electrically connected with the lens driver, and in another example, the contact portion 42 may be electrically connected with the lens driver through the body portion 41. The material of the lead 40 may be copper, iron-plated tin, or the like.

For example, the lens driving member is a voice coil motor, and two pins 40 may be disposed and electrically connected to the coils of the voice coil motor respectively to form a current loop. The magnetic force is generated by electrifying the coil and interacts with the magnet to drive the lens to move, so that the automatic focusing and anti-shaking functions of the lens are realized. The two pins 40 can be located on the same side of the housing 30, or can be located on different sides of the housing 30, such as opposite sides or adjacent sides. The number of pins 40 is not limited to two, and may be more, so as to provide power and data support for the lens driving element to drive the lens for focusing and anti-shake.

The lens driving member is not limited to a voice coil motor, and in other embodiments, the lens driving member may be a piezoelectric motor, and the pin 40 is electrically connected to the piezoelectric motor, and the piezoelectric motor is electrically connected to the circuit board 60 through the pin 40. The piezoelectric motor is connected with the lens, and the piezoelectric material (such as piezoelectric ceramic) of the piezoelectric motor is electrified to deform the piezoelectric motor so as to drive the lens to move, so that the automatic focusing and anti-shaking functions of the lens are realized.

The circuit board 60 supplies power and transmits data to the camera module 100. The circuit board 60 is provided with contacts 62 corresponding to the contact portions 42 of the pins 40. The contacts 62 may be formed on the circuit board 60 by Physical Vapor Deposition (PVD) techniques, and the contacts 62 are connected to the driver circuits or electrical connectors (BTB) on the circuit board by traces. The circuit board 60 may be a flexible circuit board or a rigid circuit board, and is electrically connected to the main board of the terminal device through an electrical connector. When the circuit board 60 is made of a flexible material, the strength of the flexible circuit board 60 can be improved by adding a reinforced steel plate.

The contact portion 42 of the pin 40 abuts against the contact 62 of the circuit board 60, and the lens driving unit is electrically connected to the circuit board 60 by the contact between the contact portion 42 and the contact 62.

When the lens driving device is installed, the lens driving device is first fixed to the seat 30, the contact portion 42 of the pin 40 is aligned with the contact 62 on the circuit board 60, and then the contact portion 42 is abutted against the contact 62, so that the two are in full contact, and the lens driving device is conducted with the circuit board 60 through the pin 40.

The camera module 100 includes a base 50, the base 50 has a through hole for light to pass through, and the base 50 is disposed between the circuit board 60 and the base 30 and fixed on the upper surface of the circuit board 60. After the contact portions 42 of the leads 40 contact the contacts 62 on the circuit board 60, the base 30 is fixed to the base 50, for example, by adhesive, so that the contact portions 42 are firmly contacted with the contacts 62 on the circuit board 60.

In the camera module 100 according to the embodiment of the present disclosure, the contact portion 42 of the pin 40 abuts against the contact 62 on the circuit board 60, so that the lens driving member and the circuit board 60 are electrically connected. Compared with a welding mode, on one hand, welding equipment and welding materials (such as soldering tin) are not needed, and cost is saved. On the other hand, the rejection rate is reduced, and the repair and installation are easy.

In some embodiments, the pin 40 includes an elastic portion having one end connected to the body portion 41 and the other end connected to the contact portion 42, wherein the elastic portion is compressed in a state where the contact portion 42 abuts against the contact 62.

When the contact portion 42 of the pin 40 abuts against the contact 62 on the circuit board 60, the contact portion 42 presses the elastic portion toward the direction opposite to the circuit board 60, so that the elastic portion deforms, and the elastic portion provides elastic force to the contact portion 42 toward the direction of the circuit board 60, so that the contact portion 42 tightly abuts against the contact 62 on the circuit board 60, the contact between the contact portion 42 and the contact 62 is more sufficient and stable, and the connection reliability is improved. Wherein, the elastic part can be a spring or a shrapnel.

As an example, the body 41 of the pin 40 extends toward the circuit board 60 to protrude from the housing 30, the elastic part is located inside the body 41, and the contact part 42 is telescopically disposed at the free end of the body 41.

The body portion 41 may extend toward the circuit board 60 to form a hollow cylinder, the elastic portion is located inside the hollow cylinder, and the contact portion 42 may be a sphere or a hemisphere. For example, the contact portion 42 is a sphere located at a free end of a hollow cylinder, the hollow cylinder includes opposite connecting and free ends, wherein the connecting end is an end away from the circuit board 60 and can be electrically connected to the coil of the voice coil motor, the free end is an end facing the circuit board 60 and is also an end adjacent to the circuit board 60, and the free end of the sphere is partially exposed from the hollow cylinder or the sphere is completely exposed from the free end of the hollow cylinder through a spring connection located inside the hollow cylinder. In the initial state, the spring is in a natural state, and the ball body is kept at the free end part of the hollow cylinder body through the spring. When the ball contacts the contacts 62 on the circuit board 60, pressure continues to be applied in the direction of the circuit board 60, and the ball retracts mostly into the hollow cylinder, at the same time, the spring is compressed, which gives the ball an elastic force in the direction of the circuit board, so that the ball is tightly pressed against the contacts 62 on the circuit board 60, keeping tight contact. The spherical surface of the sphere can be more easily contacted with the contact 62 on the circuit board 60, and the connection reliability is ensured.

For another example, the contact portion 42 is a hemisphere at the free end of the hollow cylinder, and the spherical surface of the hemisphere is exposed at the free end of the hollow cylinder through a spring connection located inside the hollow cylinder. One end of the spring is fixed in the hollow cylinder, and the other end of the spring is fixed on the section of the hemisphere. In the initial state, the spring is in a natural state, and the hemispheroid is kept at the free end part of the hollow cylinder through the spring. When the hemisphere is in contact with the contacts 62 on the circuit board 60, pressure continues to be applied in the direction of the circuit board 60, and the hemisphere retracts mostly into the hollow cylinder, while the spring is compressed, giving the hemisphere an elastic force in the direction of the circuit board, so that the sphere is tightly pressed against the contacts 62 on the circuit board 60 to maintain tight contact. The connection with the spring is facilitated by the cross section of the hemisphere, and the spherical surface can be more easily contacted with the contact 62 on the circuit board 60, so that the connection reliability is ensured.

In some embodiments, the circuit board 60 is provided with a recess 61, and the contacts 62 are located within the recess 61. A groove 61 is formed on the surface of the circuit board 60 at a position corresponding to the contact portion 42 of the pin 40, and the shape of the groove 61 may be circular, rectangular or other irregular shapes. The groove 61 acts as a stop for the contact portion 42 of the pin 40. When assembled, contact portions 42 of pins 40 are inserted into grooves 61 and contact contacts 62 within grooves 61 for electrical connection. In a state where the contact portion 42 abuts against the contact 62, at least a part of the contact portion is located within the groove 61. For example, when the contact portion 42 abuts against the contact 62 in the groove 61, and pressure is continuously applied toward the circuit board 60, the spring is compressed, a part of the contact portion 42 retracts into the hollow cylinder, and another part of the contact portion is exposed outside the hollow cylinder, and the contact portion 42 is tightly contacted with the contact 62 in the groove 61 by the elastic force of the spring. The recess 61 provided on the circuit board 60 also facilitates assembly and allows for blind operation.

In some embodiments, the camera module 100 of the present disclosure includes a housing 10 and a lens 20 disposed in the housing 10, wherein the lens 20 is connected to a lens driving member, and the lens driving member can drive the lens to move. For example, the lens driving member may drive the lens to move relative to the image sensor in the optical axis direction to achieve auto-focusing. The focus function can send a control command to a driving circuit (Driver IC) on the circuit board 60 through a processing chip (AP/SOC) in the terminal device, and the driving circuit controls the current flowing into the coil of the voice coil motor to adjust the displacement required for lens focus (AF). For another example, the lens driving element can drive the lens to move to a required angle deflected from any direction of the optical axis, so as to realize automatic anti-shake. The anti-shake function (OIS) of the lens can obtain shake offset information through a Gyroscope (GYRO) arranged in the terminal equipment, and a driving circuit (Driver IC) in the terminal equipment calculates an offset and an offset direction caused by shake according to the shake offset information, so that the driving force of a Voice Coil motor (Voice Coil Actuator) is controlled according to the shake offset and the offset direction to compensate the shake offset and the offset direction, and the anti-shake purpose is achieved.

The lens may include a lens barrel and one or more lenses disposed within the lens barrel. The lens cone comprises an object side and an image side, wherein one side facing to an object to be shot is the object side, and the side close to the image sensor is the image side. The lens barrel may be hollow and tubular, and has a central axis, and the inner wall of the lens barrel may be formed with multiple stepped annular bearing surfaces for bearing various optical elements, such as various lenses (e.g., convex lens or concave lens), aperture, shading member, diffusion sheet, etc., for changing light properties or refraction path, and the optical elements may be selectively disposed in the lens barrel.

The image sensor is fixed on the circuit board 60, and is configured to receive incident light refracted and condensed by the lens to form an image, and convert an optical image into an electrical signal. The image sensor may be a Charge Coupled Device (CCD) or a Complementary Metal Oxide Semiconductor (CMOS).

Based on the same concept, the embodiment of the present disclosure further provides a terminal device 200, as shown in fig. 5, the terminal device 200 includes the camera module 100 mentioned in any of the above embodiments. The terminal device 200 may be a smartphone, a tablet computer, a notebook computer, a wearable device such as a smart band and a smart watch, a camera, a camcorder, a tachograph, and the like.

Taking a smart phone as an example, the smart phone may include a housing 210 and a display screen disposed in front of the housing 210. The camera module 100 may be disposed behind the housing 210, and used as a rear camera of a smart phone. The camera module 100 may also be fixed in front of the housing 210, and used as a front camera of a smart phone. Light from an object to be shot is refracted and adjusted by a lens of the camera module 100 and then projected to the image sensor, the image sensor converts light information into digital information, and the digital information is processed by a processor inside the smart phone and displayed on a screen. Whether the camera module 100 is used as a front camera or a rear camera of a smartphone, the number of the camera modules 100 may be one or more.

The terminal device 200 of the embodiment of the present disclosure is configured such that the pins 40 of the camera module 100 abut against the contacts 62 on the circuit board 60, and the lens driving unit and the circuit board 60 are electrically connected. Compared with a welding mode, on one hand, welding equipment and welding materials (such as soldering tin) are not needed, and cost is saved. On the other hand, the rejection rate is reduced, and the repair and installation are easy.

The contact part of the pin 40 is tightly abutted against the contact 62 on the circuit board 60 through the elastic part, so that the contact part 42 is contacted with the contact 62 more fully and stably, the connection reliability is improved, and the photographing and shooting functions of the terminal device 200 are ensured.

It is understood that "a plurality" in this disclosure means two or more, and other words are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the scope of the appended claims.

Claims (10)

1. A camera module, comprising:

a lens driving member;

the pin is connected with the lens driving piece and comprises a body part and a contact part arranged on the body part;

a circuit board provided with a contact corresponding to the contact portion;

wherein the contact portion abuts against the contact.

2. The camera module of claim 1,

the pin includes an elastic portion having one end connected to the body portion and the other end connected to the contact portion, wherein the elastic portion is compressed in a state where the contact portion abuts against the contact.

3. The camera module of claim 2,

the body portion extends toward the circuit board,

the elastic part is positioned in the main body part,

the contact part is telescopically arranged at the free end of the body part.

4. The camera module of claim 3,

the body part is a hollow cylinder;

the contact part is a sphere or a hemisphere, wherein at least part of the sphere or the hemisphere is exposed out of the hollow cylinder.

5. The camera module of claim 2,

the elastic part is a spring or a spring sheet.

6. The camera module of any one of claims 1-5,

the circuit board is provided with a groove, and the contact is located in the groove.

7. The camera module of claim 6,

at least part of the contact part is positioned in the groove under the state that the contact part is abutted to the contact.

8. The camera module of claim 1, comprising:

the lens driving piece is fixed on the seat body;

the base is arranged between the base body and the circuit board;

wherein, the pedestal is fixed in the base.

9. The camera module of claim 1, comprising:

the lens is connected with the lens driving piece, and the lens driving piece drives the lens to move.

10. A terminal device, comprising:

a camera module according to any one of claims 1-9.

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