KR102274636B1 - Assembly for camera module - Google Patents

Abstract

The embodiment includes a camera module including a cover can in which a lens unit is accommodated and an opening is formed in the center of an upper side thereof, a base coupled to a lower side of the cover can, and a printed circuit board disposed on the other side of the base; and a plate having a through hole corresponding to the opening of the cover can, and at least one protrusion extending from one side of the plate to a side surface of the cover can, the bracket being coupled to the upper side of the cover can. It provides an assembly for a camera module comprising a.

Description

Assembly for camera module {ASSEMBLY FOR CAMERA MODULE}

An embodiment of the present invention relates to an assembly for a camera module having an improved structure.

As various types of portable devices are widely distributed and wireless Internet services are commercialized, the demands of consumers related to portable devices are also diversifying. Accordingly, various types of additional devices are being installed in portable devices.

Among them, a camera module is a representative that can take a photo or video of a subject, store the image data, and edit and transmit it as needed.

In recent years, the demand for compact camera modules is increasing for use in various multimedia fields such as notebook personal computers, camera phones, PDA, smart devices, toys, etc., and for image input devices such as information terminals of surveillance cameras and video tape recorders. .

The camera module includes a printed circuit board, and an image sensor mounted on the printed circuit board converts an optical signal of a subject into an electrical signal and transmits it to a main board provided in the portable device.

For this electrical connection, the camera module is inserted and mounted in a socket, and the connector of the socket is connected to the main board of the electronic device.

Here, when viewed from the upper side, when a square camera module is inserted into the socket, the direction may not be correct.

In addition, since the cover can of such a camera module is produced by press-fitting a metal material, the processing capable of indicating the directionality on the cover can itself is difficult in terms of price or time.

An embodiment is to provide an assembly for a camera module capable of accurately inserting a camera module into a socket and having improved durability.

The embodiment includes a camera module including a cover can in which a lens unit is accommodated and an opening is formed in the center of an upper side thereof, a base coupled to a lower side of the cover can, and a printed circuit board disposed on the other side of the base; and a plate having a through hole corresponding to the opening of the cover can, and at least one protrusion extending from one side of the plate to a side surface of the cover can, the bracket being coupled to the upper side of the cover can. It provides an assembly for a camera module comprising a.

In addition, an inner surface of the protrusion may be formed on the bracket so as to be in contact with a side surface of the cover can.

In addition, the bracket may further include at least one protrusion extending to the side of the cover can on the other side of the plate.

In addition, the number of protrusions formed on one side and the other side of the plate may be formed differently.

In addition, two protrusions may be formed on one side of the plate, and one protrusion may be formed on the other side of the plate.

In addition, the bracket may be formed of an insulating material.

In addition, the bracket may be attached to the cover can with an adhesive.

In addition, it may further include a socket in which the recessed groove corresponding to the protrusion is formed on the side.

In addition, the concave groove may be formed to be spaced apart from the protrusion by a predetermined interval.

In addition, the socket may include at least one elastic piece extending inwardly from the upper side of the side.

In addition, the elastic piece may be formed on the side where the concave groove is not formed.

According to an embodiment of the present invention, the bracket is disposed on the upper side of the cover can to prevent erroneous assembly when the camera module is mounted in the socket, and to protect the exterior and improve durability.

1 is a perspective view of a bracket according to an embodiment of the present invention.
2 is a perspective view of a socket according to an embodiment of the present invention;
3A is a perspective view of a camera module having a bracket mounted thereon according to an embodiment of the present invention;
3B is a side view of a camera module equipped with a bracket according to an embodiment of the present invention;
4A is a perspective view of a camera module equipped with a bracket and a socket according to an embodiment of the present invention;
4B is a side view of a camera module equipped with a bracket and a socket according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Unless otherwise specified, all terms herein have the same general meaning as understood by those skilled in the art, and if a term used in this specification conflicts with the general meaning of the term, the definition used herein shall govern.

However, the invention to be described below is only for explaining the embodiments of the present invention, not for limiting the scope of the present invention, and the same reference numbers used throughout the specification indicate the same components.

Hereinafter, the assembly for the camera module of the embodiment will be described in detail with reference to the drawings.

1 is a perspective view of a bracket according to an embodiment of the present invention, FIG. 2 is a perspective view of a socket according to an embodiment of the present invention, FIG. 3A is a perspective view of a camera module equipped with a bracket according to an embodiment of the present invention, FIG. 3B is A side view of a camera module equipped with a bracket according to an embodiment of the present invention, FIG. 4A is a perspective view of a camera module equipped with a bracket and a socket according to an embodiment of the present invention, and FIG. 4B is a bracket according to an embodiment of the present invention It is a side view of the camera module with the socket installed.

1 to 4B , the embodiment may largely include a bracket 100 and a camera module 300 . In addition, the camera module to which the bracket 100 is coupled may be fastened to the socket 200 .

Before describing the bracket 100 and the socket 200, the camera module 300 will be described as follows.

3A to 4B , the exterior of the camera module 300 according to the embodiment has a hexahedral shape, and may have a square cube shape when viewed from the top.

Specifically, the camera module 300 may include a lens unit 310 , a bobbin 320 , a cover can 330 , a base 340 , and a printed circuit board 350 , and may include an actuator unit or elasticity, not shown. It may further include a unit.

The lens unit 310 may be a lens barrel, but is not limited thereto, and any holder structure capable of supporting the lens may be included. The lens unit 310 is installed on the upper side of the printed circuit board 350, which will be described later, and is disposed at a position corresponding to an image sensor (not shown). The lens unit 310 is provided with one or more lenses (not shown).

The bobbin 320 may accommodate the lens unit 310 therein. Specifically, the bobbin 320 is coupled to the lens unit 310 to fix the lens unit 310 , and the coupling method between the lens unit 310 and the bobbin 320 is a screw thread on the inner circumferential surface of the bobbin 320 . A screw thread coupling method for forming and fastening each on the outer circumferential surface of the lens unit 310 may be used, but may also be coupled by a screwless method using an adhesive. Of course, even in the screw thread coupling method, it is possible to achieve a more robust mounting between each other by using an adhesive after the screw thread fastening.

The cover can 330 is fastened with a base 340 to be described later to accommodate the lens unit 310 , the bobbin 320 , an actuator and an elastic unit not shown, and forms the exterior of the camera module 300 . can do.

As shown, the cover can 330 may be formed in the shape of a rectangular parallelepiped in which the lens unit 310 is accommodated, an opening is formed in the center of the upper surface, and the lower surface is opened.

Here, the shape of the cover can 330 may be a square or regular octagon when viewed from the top, and may be implemented in any other shape.

The inner surface of the cover can 330 is in close contact with the side part 210 of the base 340, which will be described later, so that the lower surface thereof can be closed by the base 340, and to protect the internal components from external impact. At the same time, it may have a function of preventing penetration of external contaminants.

In addition, the cover can 330 may also perform a function of protecting the components of the camera module 300 from external interference generated by a mobile phone or the like. Accordingly, the cover can 330 may be formed of a metal material such as iron or aluminum, and may be plated with a metal such as nickel to prevent corrosion.

A through hole (not shown) corresponding to the lens unit 310 is formed in the center of the base 340 . In addition, the base 340 may have a recess (not shown) concave downward in the vicinity of the center so that the bobbin 320 may be positioned to be spaced apart.

In addition, the base 340 may be formed with one or more fixing protrusions (not shown) that protrude from the upper corner to face or combine with the inner surface of the cover can 330 , and these fixing protrusions are formed on the cover can ( 330) to easily guide the fastening and at the same time make it possible to achieve a firm fixation after fastening.

In addition, the base 340 is coupled to the lower surface of the cover can 330, may perform a sensor holder function to protect an image sensor (not shown) to be described later, and a filter (not shown) may be disposed have. In this case, the filter may be mounted in a through hole formed in the center of the base 340, and an infrared filter or a blue filter may be provided.

On the other hand, when the filter is installed on the outside of the lens, of course, it is possible to block infrared rays by coating the lens surface without separately configuring the filter.

The printed circuit board 350 has an image sensor (not shown) mounted on the center of the upper side, and various elements (not shown) for driving the camera module 300 may be mounted thereon. In addition, the printed circuit board 350 applies power for driving the lens unit 310 according to the embodiment. A plated pad (not shown) may be disposed on the lower side of the printed circuit board 350 , and the pad may transmit/receive and/or supply power to a data signal of an image sensor.

The image sensor (not shown) may be mounted on the central portion of the upper surface of the printed circuit board 350 so as to be positioned along the optical axis direction with one or more lenses (not shown) accommodated in the lens unit 310 . Such an image sensor converts an optical signal of an object incident through a lens into an electrical signal.

On the other hand, the camera module 300 may further include an actuator (not shown) to drive the lens unit 310, and this actuator includes a coil unit and a magnet unit and is disposed inside the cover can 330 by , the lens unit 310 may be moved.

Such an actuator unit may be implemented to drive the lens unit 310 in the optical axis direction for autofocusing, and the lens unit 310 may be implemented to move in a direction orthogonal to the optical axis direction for an anti-shake function. , the lens unit 310 may be moved for auto-focusing and hand-shake prevention functions.

On the other hand, the camera module 300 may further include an elastic unit (not shown) to provide a return force to the driven lens unit 310, and the elastic unit has a shape of a plate spring, a wire spring, etc. It is disposed inside the cover can 330 to provide a restoring force to the original position according to the movement of the lens unit 310 .

The camera module 300 is inserted into the socket 200 to transmit and receive data signals to and from an electronic device (not shown), and the socket 200 is implemented to be electrically connected to a main board of an electronic device (not shown). For example, the socket 200 and the main board may be electrically connected to each other by SMT soldering.

Here, when the camera module 300 is inserted into the socket 200 without matching the direction, the printed circuit board 350 of the camera module 300 and the contact to be described later of the socket 200 are mutually electrical. As a result, it may not be possible to transmit and receive electricity with the electronic device because it is not connected.

Accordingly, the embodiment of the present invention includes the bracket 100, and thus the socket 200 may also have a corresponding structural shape.

1 to 4B , the bracket 100 according to the embodiment may include a square plate 130 and a protrusion 120 extending from the plate 130 .

Specifically, the plate 130 may have a through hole 110 corresponding to the opening of the cover can 330 , and may be formed in a shape corresponding to the upper surface of the cover can 330 . That is, when the upper side of the cover can 330 is a square, the plate 130 is formed in a square shape, and when the upper side of the cover can 330 is a regular octagon, the plate 130 is formed in a square shape. can

The plate 130 is disposed on the upper surface of the cover can 330 , and thus, there is an advantage in that it is possible to absorb the impact received by the cover can 330 made of the metal material or to prevent damage to the exterior.

The protrusion 120 may be formed integrally with the plate 130 . In this case, the bracket 100 may be formed of metal, but may be formed of an insulating material by injection molding.

In addition, the protrusion 120 is formed to extend from one side of the plate 130 to at least one side of the cover can 330 to provide directionality when the camera module 300 is coupled to a socket 200 to be described later. It can be presented, and there is an advantage of being able to achieve the correct coupling of the camera module 300 and the socket 200 .

In addition, the bracket 100 is formed to extend to the side of the cover can 330 at least one or more on the other side of the plate 130 in order to further accurately couple the camera module 300 and the socket 200 . It may further include a protrusion 120 to be. In this case, the inner surface of the protrusion 120 is formed on the bracket 100 so as to be in contact with the side surface of the cover can 330 so that the bracket 100 and the cover can 330 can be coupled more firmly. can

The number of protrusions 120 formed on one side and the other side of the plate 130 may be formed differently, and the difference in this number is an advantage that allows the socket 200 coupling of the camera module 300 to be more accurately achieved. There is this. The protrusion 120 of the illustrated embodiment is implemented such that two protrusions 120 are formed on one side of the plate 130 and one protrusion 120 is formed on the other side of the plate 130, but limited to this. Instead, n+1 protrusions 120 may be formed on one side of the plate 130 , and n protrusions 120 may be formed on the other side of the plate 130 .

The protrusion 120 according to the illustrated embodiment may have a U-shape in which an opening is formed downward from the side of the plate 130, but is not limited thereto, and a quadrangle formed at a right angle to the lower side of the plate 130, It may be formed in a fragment such as a triangle.

The bracket 100 may be mounted on the camera module 300 as the protrusion 120 , but by applying an adhesive to at least one of the upper surface of the plate 130 and the cover can 330 , the adhesive ( not shown) may be attached.

In this case, the adhesive may be implemented as a thermosetting epoxy or UV epoxy, and is cured by exposure to heat or UV. However, when a thermosetting epoxy is used, it is cured by moving to an oven or by applying direct heat, and when using a UV (ultraviolet) epoxy, it is a method of curing by applying UV (ultraviolet rays) to the adhesive.

In addition, the adhesive may be an epoxy in which thermal curing and UV (ultraviolet ray) curing can be mixed, and both thermal curing and UV (ultraviolet ray) curing are possible. The adhesive is not limited to the epoxy, and any material that can be adhered to may be substituted.

2, 4A and 4B, the socket 200 has a side portion 210 in which a concave groove 250 corresponding to the protrusion 120 is formed on one side of the socket 200, and the upper and lower sides are open. It may have the shape of a hexahedron.

In addition, if the protrusions 120 are respectively formed on opposite sides of the bracket 100 , the socket 200 has a concave groove 250 corresponding to the protrusions 120 formed on the other side of the plate 130 . more can be formed.

The concave groove 250 may be formed in a shape corresponding to the protrusion 120 for solid coupling with the socket 200 , but as shown, the concave groove 250 is formed in the protrusion 120 by a predetermined shape. It is formed to be spaced apart from each other to reduce the occurrence of defective products due to manufacturing tolerances.

In addition, the socket 200 includes at least one elastic piece 220 extending inwardly from the upper side of the side, so that the camera module 300 can be more securely mounted. The elastic piece 220 may be formed on one side or two opposite sides where the concave groove 250 is not formed, and may be formed integrally with the socket 200 .

Specifically, the elastic piece 220 may be integrally formed by injection molding when the socket 200 is formed, and may be formed to have elasticity in a hook shape at the upper side of the side part 210 of the socket 200 . have.

In addition, the socket 200 may be provided with a side contact 230 corresponding to the side terminal portion of the printed circuit board 350 of the camera module 300 to the inside of the side portion 210, and the socket 200 may include a lower contact 240 corresponding to a pad (not shown) that may be disposed under the printed circuit board 350 of the camera module 300 as a lower side of the side part 210 . .

The side content and/or the lower contact 240 may be implemented by punching and/or bending a metal material, preferably a stainless plate or a copper plate, with a spring piece.

The embodiment having the bracket 100 and the socket 200 is firmly mounted on the cover can 330 to improve the external protection and durability of the camera module 300 , and the socket 200 and the camera module 300 . ) has the advantage of increasing the accuracy of the insertion direction and improving reliability.

Above, those skilled in the art from the above description will know that various changes and modifications are possible without departing from the technical spirit of the present invention, and the technical scope of the present invention is not limited to the contents described in the embodiments, but claims It should be determined by the scope and its equivalent scope.

100: bracket 110: through hole
120: protrusion 130: plate
200: socket 210: side part
220: elastic piece 230: side contact
240: lower contact 250: concave groove
300: camera module 310: lens unit
320: bobbin 330: cover can
340: base 350: printed circuit board

Claims (16)

a socket electrically connected to the main board of the electronic device;
A camera disposed in the socket, comprising: a printed circuit board electrically connected to the socket; a base disposed on the printed circuit board; and a cover can including an upper plate and a side plate extending from the upper plate and coupled to the base; module; and
a plate coupled to the upper plate of the cover can, and a bracket including a protrusion protruding from an outer circumferential surface of the plate;
The socket includes a concave groove in which the protrusion is disposed, and an elastic piece in contact with the cover can,
The socket includes a plurality of inner surfaces facing the side plate of the cover can,
The plurality of inner surfaces of the socket include a first inner surface on which the concave groove is formed, and a second inner surface on which the elastic piece is disposed without the concave groove. According to claim 1,
The protrusion is an assembly for a camera module that is formed on the bracket to contact a side surface of the cover can. According to claim 1,
The protrusion assembly for a camera module including a first protrusion formed on one side of the plate and a second protrusion formed on the other side of the plate. 4. The method of claim 3,
The assembly for a camera module in which the number of the first protrusion formed on one side of the plate and the number of the second protrusion formed on the other side of the plate is different. According to claim 1,
The first inner surface of the socket is disposed perpendicular to the second inner surface of the socket assembly for a camera module. According to claim 1,
The assembly for a camera module in which the cover can is formed of a metal material and the bracket is formed of an insulating material. According to claim 1,
The bracket is an assembly for a camera module that is attached to the cover can with an adhesive. According to claim 1,
The elastic piece is an assembly for a camera module that is formed in the shape of a hook on the upper side of the side of the socket. According to claim 1,
The concave groove is an assembly for a camera module formed to be spaced apart from the protrusion by a predetermined distance. According to claim 1,
The socket is an assembly for a camera module including two or more of the elastic piece. According to claim 1,
The socket is an assembly for a camera module including a side contact corresponding to the side terminal portion of the printed circuit board of the camera module on the inside. According to claim 1,
The camera module includes a cover can including a top plate and four side plates extending downward from the outer periphery of the top plate, a bobbin disposed in the cover can, and a bobbin disposed under the bobbin and coupled to the side plate of the cover can A camera module assembly comprising a base, a coil disposed on the bobbin, a magnet facing the coil, and elastic units disposed on upper and lower surfaces of the bobbin. According to claim 1,
The socket is an assembly for a camera module in the shape of a hexahedron with upper and lower sides open. According to claim 1,
The concave groove is an assembly for a camera module that is disposed at a position corresponding to the protrusion. According to claim 1,
The bracket is an assembly for a camera module formed of a material different from that of the cover can. A mobile terminal comprising the camera module of claim 1 .

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