KR102328484B1 - Lens assemblng apparatus for camera - Google Patents

Abstract

Disclosed is a lens coupling apparatus for a camera. According to an embodiment of the present invention, the lens coupling apparatus for the camera comprises: a base unit wherein a housing unit and a lens unit coupled to the housing unit are settled; a support unit coupled to the base unit to be detachable; and a pressurizing means provided in the support unit to pressure the lens unit toward the housing unit to be coupled and supporting the housing unit.

Description

Lens coupling device for camera {LENS ASSEMBLNG APPARATUS FOR CAMERA}

The present invention relates to a coupling device, and more particularly, to a camera lens coupling device for coupling a lens used in a camera such as a smartphone to a housing.

With the development of communication technology, the use of portable terminals such as mobile phones and PDA is rapidly increasing in recent years, and these technologies are not only a simple phone function, but also various functions such as music, movies, TV, games, etc. along with the development of electric/electronic technology. is providing One of the big roles in providing these various functions is the camera module.

The camera module is changing from the existing 300,000 pixels (VGA level) to the current high-pixel center of 10 million pixels or more, and at the same time, it is changing to enable the implementation of various additional functions such as autofocusing (AF) and optical zoom.

In addition, video calls are made possible due to the development of file transmission systems including the wireless Internet, and two or more camera modules for video calls and video recording are mounted on a single printed circuit board by a single connector (dual camera). camera) is being manufactured.

In general, in implementing such a dual camera, a high-pixel camera of 13 mega or more is used to take a general image, and a low-pixel camera of VGA level or less is used for video calls.

In this way, two or more camera modules are difficult to manufacture because accurate bonding between printed circuit boards is required, and malfunctions inevitably occur when pads formed at the junction between the boards are defective, so the connection between the camera module and the board is difficult. should be done

That is, a flexible circuit board (FPCB) with a connector for connecting the camera module to an external device must be accurately bonded to the printed circuit board on the bottom of the camera module.

On the other hand, as the size of the mobile communication terminal becomes smaller, the image quality deteriorates because the effect on hand shake during image capturing is greater. Therefore, in order to obtain a clear image, a correction technique for hand shake is required.

When hand shake occurs when taking an image, an OIS actuator to which OIS (Optical Image Stabilization) technology is applied may be used to correct hand shake. The OIS actuator may move the lens module in a direction perpendicular to the optical axis.

Conventionally, when the lens module is coupled to the OIS actuator, both are seated on the tray of the facility and assembled. In this case, seating of the lens module is unstable, causing tilting of the lens module, which has a disadvantage in that assembly failure or damage to the lens module occurs.

In addition, in the prior art, when the lens module is coupled to the OIS actuator, productivity is good by using the facility, but tolerance management is physically impossible, so there are many defects and the performance of the camera is deteriorated.

The above-described technical configuration is a background for helping the understanding of the present invention, and does not mean a conventional technique widely known in the art to which the present invention pertains.

Korea Patent Publication No. 10-1892857 (Samsung Electric Co., Ltd.) 2018. 08. 22.

Accordingly, the technical problem to be achieved by the present invention is to provide a lens coupling device for a camera that can significantly reduce assembly defects and damage to the lens unit by reducing the tilting of the lens unit generated when the lens unit is coupled to a housing unit such as an OIS actuator.

Another object of the present invention is to provide a lens coupling device for a camera capable of minimizing distortion during assembly of the lens unit by improving the flatness of the area where the lens unit and the housing unit are seated.

According to an aspect of the present invention, there is provided a base unit on which a housing unit and a lens unit coupled to the housing unit are seated; a support part detachably coupled to the base part; and a pressing means provided in the support part to press and couple the lens part to the housing part and support the housing part.

The pressing means may include: a lens pressing unit provided in the support unit to press the lens unit to the housing unit; and a housing pressing part provided on the support part to press the housing in the direction of the base part.

The lens pressing unit may include a pressing body having one side provided to pass through the supporting unit; a support pin coupled to the pressure body to support the pressure body to the support part; a pressure flange provided at an end of the pressure body to press the lens unit in the direction of the housing unit; And one side portion may include a pressure spring supported by the flange and the other side portion supported by the support portion.

A first stopper groove and a second stopper groove in which the support pin is supported are provided in the support part, and the first stopper groove is provided with a depth greater than the second stopper groove to rotate the pressure body to remove the support pin. When positioned in the first stopper groove, the pressing flange presses the lens unit, and when the support pin is positioned in the second stopper groove, the pressurization of the pressing flange may be released.

A seating portion protruding upward to seat the housing portion and the lens portion is provided on the upper surface of the base portion, and the base portion includes a guide block provided on the base portion to surround the seating portion to guide the seating of the housing portion. may include

The base unit may further include an alignment unit for magnetically adjusting alignment of the housing seated on the base unit.

The alignment part may include: an alignment block provided to be recessed in an upper surface of the base part; and an alignment magnet provided in the alignment block to which an attractive force acts with a magnet member provided in the housing unit.

Embodiments of the present invention are provided in the support part to press the lens part to the housing part and combine, and also reduce the tilting of the lens part generated when the lens part is coupled to the housing part by the pressing means for supporting the housing part, thereby preventing assembly defects and damage to the lens part. can be significantly reduced.

In addition, the flatness is improved by the seating part protruding upward so that the housing part and the lens part are mounted on the upper surface of the base part, so that distortion during assembly of the lens part can be minimized.

1 is a view schematically showing a lens coupling device for a camera according to an embodiment of the present invention.
FIG. 2 is a front cross-sectional view of FIG. 1 .
FIG. 3 is a side cross-sectional view of FIG. 1 .
FIG. 4 is a cross-sectional view of a region of the pressure bar shown in FIG. 1 .
FIG. 5 is a view schematically illustrating that the housing part and the lens part are seated on the base part shown in FIG. 1 and the support part is separated from the base part.
FIG. 6 is an enlarged view of an area of the seating part shown in FIG. 1 .
FIG. 7 is a view schematically illustrating the operation of the pressing means shown in FIG. 1 .
FIG. 8 is an operation view showing the plurality of pressing bars shown in FIG. 1 pressing the upper surface of the housing.
Fig. 9 is a state diagram of the use of this embodiment.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a view schematically showing a lens coupling device for a camera according to an embodiment of the present invention, FIG. 2 is a front sectional view of FIG. 1 , FIG. 3 is a side sectional view of FIG. 1 , and FIG. 4 is shown in FIG. It is a cross-sectional view of the illustrated pressure bar, and FIG. 5 is a view schematically showing that the housing part and the lens part are seated on the base part shown in FIG. 1 and the support part is separated from the base part.

In addition, FIG. 6 is an enlarged view showing the area of the seating part shown in FIG. 1 , FIG. 7 is a view schematically illustrating the operation of the pressing means shown in FIG. 1 , and FIG. The pressure bar is an operation diagram for pressing the upper surface of the housing portion, Figure 9 is a state diagram of the use of the present embodiment.

As shown in these drawings, the lens coupling device 1 for a camera according to the present embodiment includes a housing 10 and a base 110 on which a lens unit 20 coupled to the housing 10 is seated. ), the support part 200 detachably coupled to the base part 110, and the support part 200 provided in the support part 200 to press and couple the lens part 20 to the housing part 10 and support the housing part 10 It includes a pressing means 300 and an alignment unit 400 that is provided on the base unit 110 and magnetically adjusts the alignment of the housing seated on the base unit 110 .

The base part 110 is, as shown in FIG. 1, the base body 110 and the hook part 120 which is rotatably coupled to both side walls of the base body 110 to clamp the support part 200, It is provided to protrude from the upper surface of the base body 110 and is coupled to the base body 110 so as to surround the seating part 130 on which the housing part 10 and the lens part 20 are seated, and the seating part 130 . It includes a guide block 140 for guiding the seating of the housing 10 , and a pair of support shafts 150 coupled to the upper surface of the base body 110 and inserted into the support 200 .

The base body 110 of the base part 110 may have a rectangular parallelepiped shape, as shown in FIG. 1 .

The hook part 120 of the base part 110 is to detachably couple the support part 200 to the base body 110, and as shown in FIG. 2, it is disposed on both side walls of the base body 110, A hook body 121 coupled to the hook coupling groove 211 provided in the support 200, and a hook shaft 122 coupled to both side walls of the base body 110 to rotatably support the hook body 121 and , one side is supported by the groove provided in the base body 110 and the other side supports the hook body 121 to elastically couple the hook body 121 to the hook coupling groove 211 It includes a hook spring 123 . .

As shown in FIG. 1 , the seating part 130 of the base part 110 is provided on the upper surface of the base body 110 so as to be disposed inside the guide block 140 , and the housing part 10 and the lens part ( 20) may be provided as a seating location.

In this embodiment, the seating part 130 is provided to protrude upwardly from the upper surface of the base body 110, as shown in FIG. 6 , and the first seating body 131 on which the housing part 10 is seated. and a second seating body 132 provided to protrude upwardly from the upper surface of the first seating body 131 and on which the lens unit 20 is mounted.

In this embodiment, the second seating body 132 may be provided as high as h height from the first seating body 131 , as shown in FIG. 6 .

In the present embodiment, the distortion during assembly of the lens unit 20 can be minimized by managing the step h of the seating unit 130 within ±1 μm.

The guide block 140 of the base part 110 guides the housing part 10 to be stably seated on the seating part 130, and as shown in FIG. 1, has a rectangular planar shape with an open central part. can

In this embodiment, the guide block 140, as shown in FIG. 2, one side may be fitted and coupled to a plurality of fixing pins 141 coupled to the base body 110.

As shown in FIG. 2 , the support shaft 150 of the base part 110 may have a lower portion coupled to the base body 110 and an upper portion fitted to the body groove 212 of the support body 210 . have.

As shown in FIG. 2 , the support part 200 is detachably coupled to the base body 110 by the hook part 120 and pressurizing means 300 for pressing the housing part 10 and the lens part 20 . It may serve as a support location.

In this embodiment, the support 200, as shown in Figure 2, both sides of the support body 210 and the support body 210 coupled to the base body 110 by the hook portion 120 and the support shaft 150, the support body It is coupled to the upper portion of the 210 and includes a cover body 220 for supporting the pressing means (300).

As shown in FIG. 2 , the support body 210 of the support 200 is provided with a hook coupling groove 211 to which the hook body 121 is coupled to both side walls, and an area adjacent to the hook coupling groove 211 . A body groove 212 into which the support shaft 150 is inserted may be provided in the support body 210 of the .

The cover body 220 of the support 200 may be detachably pin or screw-coupled to the upper portion of the support body 210 to support the pressing means 300 to be lifted and lowered like the base body 110 .

As shown in FIG. 7 , in the cover body 220 in this embodiment, a first stopper groove 221 and a second stopper groove 222 may be provided. In this embodiment, the first stopper groove 221 has a depth greater than that of the second stopper groove 222 and rotates the pressing body 311 to remove the support pin 312 as shown on the left side of FIG. 1 When positioned in the stopper groove 221 , the pressure flange 313 presses the lens unit 20 , and in this state, the pressure body 311 is rotated to rotate the pressure body 311 , as shown on the right side of FIG. 7 , the support pin 312 . ) is positioned in the second stopper groove 222 , the pressure of the pressure flange 313 may be released (indicated by H, see FIG. 7 ).

As described above, in the present embodiment, since the lens unit 20 can be seated on the housing unit 10 by the rotation of the lens pressing unit 310 , damage to the lens unit 20 can be greatly reduced.

The pressing means 300 may press the lens unit 20 to be coupled to the housing unit 10 , and may press the housing unit 10 so that the housing unit 10 does not shake during this process.

As shown in FIG. 9 , the pressing means 300 in this embodiment presses the lens unit 20 in the direction of the housing unit 10 to couple the lens unit 20 to the housing unit 10 . It includes a pressing part 310 and a housing pressing part 320 provided on the support part 200 to be spaced apart from the lens pressing part 310 to press the upper surface of the housing part 10 .

As shown in FIG. 1 , the lens pressing unit 310 of the pressing means 300 is coupled to the pressing body 311 and the pressing body 311 provided so that the lower part passes through the support 200 , the pressing body. A support pin 312 for supporting the 311 to the support 200, and a pressure flange 313 provided at the end of the pressure body 311 to press the lens unit 20 in the direction of the housing portion 10; The lower portion is supported by the pressure flange 313 and the upper portion includes a pressure spring 314 supported in a groove provided in the support body 210 .

As shown in FIG. 1, the pressing body 311 of the lens pressing unit 310 may have a thin cylindrical shape, and a plurality of grooves are provided at the end of the pressing body 311 to be spaced apart so that the user can conveniently hold it. have.

As shown in FIG. 3 , the support pins 312 of the lens pressing unit 310 are provided so that both ends protrude to the outside of the pressing body 311 to support the pressing body 311 .

As described above, this embodiment rotates the pressure body 311, and as shown on the left side of FIG. 7, when the support pin 312 is positioned in the first stopper groove 221, the pressure flange 313 is the lens. As shown on the right side of FIG. 7 by pressing the part 20 and rotating the pressing body 311 in this state, when the support pin 312 is positioned in the second stopper groove 222, the pressing flange 313 pressure can be released.

As shown in FIG. 2 , the pressing flange 313 of the lens pressing unit 310 has a larger diameter than the pressing body 311 and presses the upper portion of the lens unit 20 in the direction of the housing unit 10 . The lens unit 20 may be coupled to the housing unit 10 .

As shown in FIG. 9 , the housing pressing part 320 of the pressing means 300 may be provided on the support part 200 to press the upper surface of the housing part 10 to be in close contact with the seating part 130 .

In this embodiment, the housing pressing unit 320 is supported by the support body 210 so as to be liftable through a hole provided to communicate with the support body 210 and the cover body 220, as shown in FIG. A plurality of pressure bars 321 whose lower ends press the upper surface of the housing 10 (refer to FIG. 8 ), and a plurality of elastic members provided inside the support body 210 to elastically support the plurality of pressure bars 321 . (322).

As shown in FIGS. 1 and 3 , the alignment part 400 adjusts the alignment of the housing part 10 provided on the base body 110 and seated on the seating part 130 by magnetic force, that is, the housing part 10 . ), the OIS accommodated in the inside may be seated on the base unit 110 .

In this embodiment, as shown in FIG. 3 , the alignment unit 400 includes an alignment block 410 provided to be depressed in the upper surface of the base body 110 and a housing unit provided in the alignment block 410 . It includes a magnet member provided in (10) and an alignment magnet 420 on which attractive forces act.

As described above, in this embodiment, the lens unit is provided in the support unit to press the lens unit to the housing unit, and the tilting of the lens unit generated when the lens unit is coupled to the housing unit by the pressing means for supporting the housing unit is reduced, thereby causing assembly defects and lenses. Damage to wealth can be greatly reduced. In addition, the flatness is improved by the seating part protruding upward so that the housing part and the lens part are mounted on the upper surface of the base part, so that distortion during assembly of the lens part can be minimized.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations are included in the claims of the present invention.

1: Lens coupling device for camera
100: base part 110: base body
120: hook part 121: hook body
122: hook shaft 123: hook spring
130: seating part 131: first seating body
132: second seating body 140: guide block
141: fixing pin 150: support shaft
200: support 210: support body
211: hook coupling groove 212: body groove
220: cover body 221: first stopper groove
222: second stopper groove 300: pressing means
310: lens pressing unit 311: pressing body
312: support pin 313: pressurized flange
314: pressure spring 320: housing pressing part
321: pressure bar 322: elastic member
400: align unit 410: align block
420: alignment magnet 10: housing part
20: lens unit

Claims (7)

a base part on which the housing part and the lens part coupled to the housing part are seated;
a support part detachably coupled to the base part; and
and a pressing means provided in the support part to press and couple the lens part to the housing part and to support the housing part,
The pressing means may include: a lens pressing unit provided in the support unit to press the lens unit to the housing unit; and a housing pressing part provided in the support part to press the housing in the direction of the base part,
The lens pressing unit may include a pressing body having one side provided to pass through the supporting unit; a support pin coupled to the pressure body to support the pressure body to the support part; a pressure flange provided at an end of the pressure body to press the lens unit in the direction of the housing unit; And One side is supported by the flange and the other side is a lens coupling device for a camera comprising a spring supported by the support. delete delete The method according to claim 1,
In the support part,
A first stopper groove and a second stopper groove in which the support pin is supported are provided,
The first stopper groove has a depth greater than that of the second stopper groove. When the pressure body is rotated to position the support pin in the first stopper groove, the pressure flange presses the lens unit, and the support pin is moved to the second stopper groove. 2 A lens coupling device for a camera in which the pressure of the pressure flange is released when placed in the stopper groove. The method according to claim 1,
A seating portion protruding upwardly so as to seat the housing portion and the lens portion is provided on the upper surface portion of the base portion,
The base part,
The lens coupling device for a camera further comprising a guide block provided on the base to surround the seating part to guide the seating of the housing part. The method according to claim 1,
The lens coupling device for a camera further comprising an alignment part provided on the base part to magnetically adjust the alignment of the housing part seated on the base part. 7. The method of claim 6,
The alignment part,
an alignment block provided to be depressed in the upper surface of the base; and
A lens coupling device for a camera comprising a magnet member provided on the alignment block and an alignment magnet on which an attractive force acts and a magnet member provided on the housing unit.

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