KR100803245B1 - Separating camera module package - Google Patents

Abstract

A separable camera module package is provided to prevent distortion and eccentricity generated in combining a driving unit and a light processing unit by using a hook and horizontal and vertical position aligning pieces. A separable camera module package comprises a driving unit(120) and a light processing unit(110). The driving unit is composed of an upper housing equipped with a lens barrel(123) and provided with vertical position aligning pieces(114) formed at the lower part; an actuator installed in the upper housing; and a case(124) covering the upper housing and the actuator and having combining grooves(126) protruded at both lower ends. The light processing unit comprises a lower housing(113) having a vertical position aligning piece placing groove formed on the upside to fix the vertical position aligning piece and a hook(116) disposed at the side and joined with the combining groove; an IR(Infrared Ray) filter(112) combined in the center of the lower housing; and an image sensor module(111) combined at the lower part of the lower housing and equipped with an image sensor on the upside.

Description

Separating camera module package

1 is a cross-sectional view showing a conventional camera module package.

Figure 2 is an exploded perspective view showing another conventional camera module package.

3 is a cross-sectional view showing the camera module package of FIG.

Figure 4 is an exploded perspective view of the camera module package according to the present invention.

Figure 5 is a bottom view showing a drive unit of the camera module package according to the present invention.

6 is an assembly view showing an assembled state of the camera module package according to the present invention.

<Description of reference numerals for main parts of the drawings>

110: light processor 111: printed circuit board

112: IR filter 113: lower housing

114: horizontal position alignment slot 115: vertical alignment slot seating groove

116 hook 120 drive unit

121: upper housing 123: lens barrel

124: Case

The present invention relates to a detachable camera module package, and in more detail, the camera module package can be separated into two driving units and a light processing unit, respectively, to reduce a defect rate caused by a foreign material adhered to a lens, and using a hook and horizontal and vertical alignment tools. The present invention relates to a detachable camera module package having improved reliability by preventing distortion and eccentricity generated when the driving unit and the light processing unit are coupled to each other.

In recent years, due to the rapid development of information and communication technology, the improvement of data communication speed and the expansion of data communication amount are realized, and in mobile electronic devices such as mobile phones and laptops, CCD (Charged Coupled Device) image sensor or CMOS Oxide Semiconductor) is widely used to mount an image pickup device such as an image sensor, and these can transmit image data captured by a camera module in addition to text data by real time processing.

In addition, as the camera module package for mobile devices has become high pixels and high functionalities, rapid technological development is underway to achieve performance similar to that of general high-end digital cameras. Especially, an attempt to implement auto focusing technology in a mobile size Is going on at various angles.

At this time, the autofocusing technology is equipped with an actuator (Actuator) in the camera module, the electromagnetic force is generated by the interaction of the magnetic field generated by the magnet and the electric field generated by the coil, the lens is mounted by the generated electromagnetic force By driving the driving unit, the camera automatically performs the task of focusing the photographed object.

With reference to FIGS. 1 to 3 shown below for the camera module package provided with such an actuator, the structure and problems thereof will be briefly described as follows.

1 is a cross-sectional view showing a conventional camera module package, Figure 2 is an exploded perspective view showing another conventional camera module package, Figure 3 is a cross-sectional view showing the camera module package of FIG.

First, as shown in FIG. 1, a camera module package according to a conventional embodiment includes a light processor 10 that processes incident light and a driver 20 that automatically focuses a photographing object by an actuator 22. Is done.

The light processor 10 is electrically connected to the image sensor 11b and the image sensor 11b for processing light incident through the driver 20 as an electrical signal, and transmits the processed signal to the outside. An image sensor module 11 including a flexible printed circuit board (FPCB) 11a and a plurality of electronic components (not shown), and an IR filter 13 for blocking infrared rays included in the incident light. It consists of.

The driving unit 20 includes a housing 21 coupled to the flexible circuit board 11a of the light processing unit 10, and a lens barrel 23 coupled to the housing 20 and laminated with a plurality of lenses. And the actuator 22 for automatically adjusting the focus of the photographing object by moving the lens barrel 23 in the vertical direction, and surrounding the housing 21, the actuator 22 and the lens barrel 23 in the center. The cover glass 25 is composed of a case 24 coupled thereto.

At this time, the housing 20 coupled to the substrate 11a is integrally formed so that the actuator 22 and the lens barrel 23 are coupled to the top and the IR filter 13 is coupled to the bottom.

However, when the housing 20 is integrally formed as described above, the assembly process of the IR filter 13 is performed after the assembly process of the actuator 22 and the lens barrel 23 is completed. When the lens barrel 23 and the IR filter 13 are exposed to the outside for a long time, foreign matters are generated as the foreign matters generated during the assembling process are seated thereon, and when foreign matters occur in the finished process after the assembled packaging process, It is pointed out that the operation becomes impossible and the production defect rate due to the foreign material defect is increased and the production cost is also increased.

Accordingly, as an alternative for overcoming the above problem, a method for separating the light processor 10 and the driver 20 to reduce the foreign material defect rate generated in the assembly process has been proposed.

2 and 3, the camera module package according to another conventional embodiment for reducing the foreign matter defect, the housing 21 of the conventional embodiment to the upper housing 21 and the lower housing 14 Separately, the driving unit 20 including the upper housing 21 and the light processing unit 10 including the lower housing 14 are coupled to each other through the adhesive 13.

In this case, the light processing unit 10 and the driving unit 20 are produced by different processes, and after completing the assembly process of the driving unit 20, the lens in the lens barrel 25 is contaminated by foreign matter during the assembly process. A protective film (not shown) is attached to prevent foreign material defects, and when the assembly process of the light processing unit 10 is completed, the protective film attached to the driving unit 20 is removed, and the upper surface of the lower housing 14 is removed. By applying and bonding the adhesive agent 15 around the IR filter 13, the foreign material defect rate was able to be reduced.

However, when the optical processing unit 10 and the driving unit 20 of the camera module package are coupled to each other, the foreign material defect rate may be lowered compared to the integrated unit of the housing, but is mounted on the light processing unit 10 when the adhesive 15 is bonded. When the movement of the driving unit 20 or the impact from the outside occurs, there is a problem that a poor focus due to distortion or eccentricity.

In addition, when the adhesive is excessively applied when the light processing unit 10 and the driving unit 20 are coupled, the adhesive may flow out or flow into the coupling surface of the upper housing 21 and the lower housing 14. As a result, adhesive flows into the lens barrel 25 coupled to the upper housing 21 and the IR filter 13 and the image sensor 11b coupled to the lower housing 14, thereby preventing their normal operation. There was a problem that an abnormal operation occurs in the camera module.

The present invention has been made to solve the above problems, the present invention is to separate the camera module package into the drive unit and the light processing unit to reduce the defect rate due to foreign matter adhered to the lens, using a hook and horizontal and vertical position alignment The purpose of the present invention is to provide a detachable camera module package having improved reliability by preventing distortion and eccentricity generated when the driving unit and the light processing unit are coupled to each other.

The object of the present invention, the lens barrel is mounted, the upper housing having a vertical alignment hole formed in the lower portion, the actuator installed in the upper housing, the case surrounding the upper housing and the actuator, the case having a coupling groove protruding on both sides of the lower end Driving unit consisting of; And a lower housing having a hook for engaging with the coupling groove on a side of the vertical alignment tool seating groove into which the vertical position alignment tool is inserted and fixed to an upper surface, an IR filter coupled to the center of the lower housing, and a lower housing. It is achieved by providing a detachable camera module package including a; optical processing unit consisting of an image sensor module coupled to the image sensor mounted on the upper surface.

Here, the vertical alignment device is formed on at least two corners of the corner of the upper housing, the upper housing in the upward direction of the lower housing to fix the driving unit to the horizontal direction at least two corners of the corner of the lower housing. It characterized in that it further comprises a protrusion formed horizontal position alignment.

At this time, the corner corresponding to the horizontal position alignment sphere of the upper housing is characterized in that the horizontal position alignment sphere of the lower housing is inserted into a horizontal position alignment sphere shape to be fixed horizontally.

In addition, the driving unit and the light processing unit may be tightly coupled by an adhesive means interposed therebetween, and the material unit may be reduced by reusing the bonding unit without removing the bonding means when the driving unit and the light processing unit are coupled using the bonding means. At this time, the bonding means is characterized in that both sides of the adhesive tape having an adhesive strength.

In addition, when the hook of the driving unit and the light processing unit is coupled, the adhesive is applied by applying an appropriate amount of adhesive to the hook to increase the coupling force of the driving unit and the light processing unit. Adhered to the means, it is possible to prevent a defect caused by foreign matter flowing from the outside.

The technical features and operation of the present invention will be more clearly understood by the specific embodiments described below. Therefore, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view schematically showing a camera module package according to the present invention, FIG. 5 is a bottom view showing a driving unit of the camera module package according to the present invention, and FIG. 6 is an assembly view of the camera module package according to the present invention. .

First, as shown in FIGS. 4 and 5, the camera module package according to the present invention includes a driver 120 for automatically passing the incident light while automatically focusing on a photographing target, and incident through the driver 120. And a light processor 110 for processing incident light to output image data.

Here, the driving unit 120, the lens barrel 123 is a plurality of lenses are stacked, the lens barrel 123 is coupled to the adhesive means 128 is attached to the lower portion of the vertical position alignment sphere 121a The upper housing 121 is formed, an actuator (not shown) for focusing by moving the lens barrel 123 up and down, and the upper housing 121 and the actuator is wrapped around the coupling groove 126 at both lower ends. ) Includes a protruding case 124.

The lens barrel 123 has a plurality of lenses laminated therein, coupled to the upper housing 121 and the actuator, and moved in the vertical direction by the operation of the actuator.

The actuator wraps around the lens barrel 123 and is coupled to the upper housing 121, and moves the lens barrel 123 in the vertical direction to focus the photographing object for autofocusing in the image sensor module 111. .

The upper housing 121 is coupled to the lens barrel 123 and the actuator, and the vertical alignment hole 121a and the horizontal alignment hole seating groove 121b at the lower portion thereof to be firmly coupled to the light processing unit 110. The light receiving area 121c is formed at the center thereof to allow incident light incident through the lens barrel 123 to pass therethrough.

The vertical position alignment tool 121a may cause an eccentricity when the coupling height of these coupling surfaces is changed when the driving unit 120 and the light processing unit 110 are coupled to each other, thereby causing a problem in that the focus is not accurately focused. In order to prevent this by forming a vertical position alignment sphere (121a) in the drive unit 120 by fixing the fixed height constant, there is an advantage that can prevent the occurrence of eccentricity.

In addition, when the driving unit 120 and the light processing unit 110 are coupled to each other, they are not coupled to the correct position by external impact, but have a slight error in the horizontal direction. In addition, the assembly process may cause a problem in which the driving unit 120 and the light processing unit 110 may not be accurately coupled by the distortion, and may be horizontally below the upper housing 121 coupled to the light processing unit 110. By forming the alignment tool seating groove (121b), it is possible to effectively prevent the distortion phenomenon occurs when the coupling.

 At this time, the horizontal alignment member seating groove 121b is formed in at least two corners of each corner of the upper housing 121, the shape of the groove is inserted or fixed by the horizontal position alignment hole 114 to be described later The end is cut and supported by the horizontal position alignment hole 114 to be horizontally fixed.

The case 124 surrounds the actuator and lens barrel 123 coupled to the upper housing 121, and is coupled to the upper housing 121, and a lower end thereof has a coupling groove for increasing coupling force with the light processor 110. 126 is formed.

In particular, when the assembly process of the upper housing 121, the actuator, the lens barrel 123 and the case 124 is completed, the light receiving area 121c formed under the upper housing 121 is generated during the dust or assembly process. Foreign particles such as fine particles (particles) enters and is seated on the lens of the lens barrel 123, and thus foreign material defects generated by the foreign material are generated, thereby reducing the foreign material defects. The light receiving region 121c formed under the upper housing 121 of the driving unit 120 having completed the assembly process.

In this case, the protective film is attached to the upper housing 121 through the adhesive means 128 attached to the periphery of the light receiving region 121c to cover the light receiving region 121c of the upper housing 121.

On the other hand, the adhesive means 128 uses a double-sided adhesive tape, the reason is, after removing only the protective film without removing the adhesive means 128, the drive unit 120 using the attached adhesive means 128 And by adhering the light treatment unit 110, it is possible to reduce the material cost by reusing the adhesive means 128 that were removed together when removing the protective film, the adhesive generated in the conventional adhesive bond flows to the outside or to the inside There is an advantage that can prevent abnormal operation caused by flow.

The light processor 110 coupled to the driving unit 120 has a hook 116 for engaging with the coupling groove 126 of the driving unit 120 protruding to a side corresponding to the coupling groove 216 and the The lower housing 113 and the lower housing 113 coupled to the driving unit 120 by the gluing means 128 are formed on the upper vertical alignment sphere seating groove 115 coupled with the vertical position alignment sphere 121a. An IR filter 112 coupled to a central portion of the 113 and an image sensor module 111 coupled to a lower portion of the lower housing 113 to process incident light incident through the IR filter 112.

Here, the lower housing 113 is coupled to the upper housing 121 of the drive unit 120, and the horizontal alignment to prevent the distortion caused by the movement in the horizontal direction when combined with the upper housing 121. A horizontal position alignment hole 114 is inserted into and fixed to the spherical seating groove 121b, and the vertical position alignment for preventing a difference in coupling height from occurring on a mating surface when engaging with the upper housing 121 is formed. The vertical alignment tool seating groove 115 is formed to allow the sphere 121a to be inserted and fixed.

In this case, the horizontal alignment unit 114 and the vertical alignment unit seating groove 115 is formed in at least two corners of the corner of the lower housing 113, the upper housing 121 when combined with the upper housing 121 ) Can be effectively prevented from flowing in the vertical and horizontal directions.

In addition, the hook 116 is formed to protrude on the side of the lower housing 113 corresponding to the coupling groove 126 formed on the bottom of the case 124, the coupling of the driving unit 120 and the light processing unit 110. When the coupling groove 126 is elastically tightly coupled. For this reason, the coupling of the driving unit 120 and the light processing unit 110 may be fixedly coupled closer than the coupling using a conventional adhesive.

Meanwhile, when the driving unit 120 and the light processing unit 110 are coupled to each other by applying an appropriate amount of adhesive to the surfaces of the hook 116 or the coupling groove 126 abut each other, it can be more firmly fixed and coupled There is an advantage.

The IR filter 112 is coupled to a window window formed at the center of the lower housing 113 and blocks infrared rays of incident light incident through the lens barrel 123 of the driving unit 120 and the driving unit 120. When the light processor 110 is coupled, the edge of the window window and each edge are simultaneously bonded by the bonding means 128.

The IR filter 112 to which the respective edges are bonded by the adhesive means 128 is generated during processing to be coupled to the window window, and the dust seated on each edge is adhesively fixed by the adhesive means 128, and Since dust may move to the center portion of the IR filter 112 to prevent blocking of incident light passing therethrough, the foreign material defect rate may be lowered.

The image sensor module 111 has a plurality of electronic components mounted therein and is configured to process the incident light incident through the flexible circuit board 111a and the lens barrel 123 and the IR filter 112 which are extended to the outside. An image sensor (not shown) mounted on a substrate 111a converts an image of the incident light into electrical image data, and transfers the converted image data to an external device through the flexible circuit board 111a. do.

Preferred embodiments of the present invention described above are disclosed for the purpose of illustration, and various substitutions, modifications, and changes within the scope without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It will be possible, but such substitutions, changes and the like should be regarded as belonging to the following claims.

As described above, the camera module package according to the present invention is separated into the driving unit and the light processing unit, respectively, so that when foreign matter defects occur during the assembling process, there is an advantage of improving the process yield.

In addition, the present invention by adhering the driving unit and the light processing unit through the adhesive means, it is possible to improve the productivity by preventing foreign material defects due to debris and dust generated on the edge of the IR filter to which the adhesive means is bonded, hook, horizontal and vertical By combining the driving unit and the light processing unit by using the alignment tool, there is an advantage of improving the reliability by preventing the occurrence of distortion and eccentricity.

Claims (8)

A driving unit including a lens barrel mounted and a lower housing having a vertical alignment hole formed therein; an actuator installed in the upper housing; and a case surrounding the upper housing and the actuator and having coupling grooves protruding from the lower sides of the upper housing; And A lower housing having a hook to be coupled to the coupling groove on a side of the vertical alignment tool seating groove into which the vertical position alignment tool is inserted and fixed at an upper surface thereof, an IR filter coupled to a center portion of the lower housing, and a lower housing coupled to the lower housing; An optical processor comprising an image sensor module mounted on an upper surface of the image sensor module; Detachable camera module package including a. The method of claim 1, The vertical position aligning device, the detachable camera module package, characterized in that formed on at least two corners of the corner of the upper housing. The method of claim 1, The lower housing, the detachable camera module package further comprises a horizontal position alignment port protruding upward. The method of claim 3, The horizontal position alignment tool, the detachable camera module package, characterized in that formed on at least two corners of the corner of the lower housing. The method of claim 3, Detachable camera module package characterized in that the corner corresponding to the horizontal position alignment sphere of the upper housing is cut into the horizontal position alignment sphere shape so that the horizontal position alignment sphere of the lower housing is inserted. The method of claim 1, Separating camera module package, characterized in that the adhesive is applied to the hook or the coupling groove coupled to the hook when the driving unit and the light processor is coupled to the hook. The method of claim 1, The driving unit and the light processing unit are tightly coupled by an adhesive means interposed therebetween, wherein the adhesive unit is a detachable camera module package, characterized in that both sides of the adhesive tape having an adhesive force on both sides. The method of claim 7, wherein Separating camera module package, characterized in that the edge of the IR filter is bonded to the bonding means when the drive unit and the light processor.

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