KR20230005083A - Lens driving device, camera module and optical apparatus - Google Patents

Abstract

The present invention relates to a lens driving device, a camera module, and an optical device. The lens deriving device comprises: a cover; a bobbin disposed in the cover; a first coil disposed on the bobbin; a magnet facing the first coil; and a base disposed below the cover. The cover includes an upper plate, a first later plate extending downward from the upper plate, and a first protrusion part located on a lower surface of the first lateral plate. The base includes a body disposed on the first lateral plate and a first groove in which the first protrusion part is disposed. A part of the first protrusion part is partially curved or bent and disposed in the first groove. According to the present invention, the cover is stably fixed to the base by means of the protrusion part and thus is not easily separated by external force.

Description

Lens driving device, camera module and optical device {LENS DRIVING DEVICE, CAMERA MODULE AND OPTICAL APPARATUS}

This embodiment relates to a lens driving device, a camera module, and an optical device.

The contents described below provide background information on the present embodiment, but do not describe the prior art.

As the distribution of various portable terminals is widely generalized and wireless Internet services are commercialized, consumers' demands related to portable terminals are also diversifying, and various types of additional devices are being installed in portable terminals.

Among them, a typical example is a camera module that takes a picture or video of a subject. Recently, an autofocus function, which is a function that automatically adjusts the focus according to the distance of the subject, or hand shake compensation that moves or tilts the lens module in a direction perpendicular to the optical axis direction to offset vibration (movement) caused by external force A camera module equipped with a lens driving device capable of performing functions is appearing.

The lens driving device includes a cover that protects internal components, but there is a problem in that the cover is separated from the lens driving device (removal of the cover) due to an external impact.

(Patent Document 1) KR 10-2017-0110953 A

In this embodiment, it is intended to provide a lens driving device requiring high pulling force to separate a cover, a camera module including the lens driving device, and an optical device including the camera module.

The lens driving device of this embodiment includes a cover; a bobbin disposed within the cover; a first coil disposed on the bobbin; a magnet facing the first coil; and a base disposed under the cover, the cover including a top plate, a first side plate extending downward from the top plate, and a first protrusion located on a lower surface of the first side plate, wherein the base includes the first side plate. It may include a body in which the side plate is disposed and a first groove in which the first protrusion is disposed, and a portion of the first protrusion may be curved or bent to be disposed in the first groove.

The first groove is formed by recessing the lower surface of the body, and the first protrusion may protrude downward from the lower surface of the first side plate and be curved or bent toward the first groove.

The first protrusion includes a 1-1 portion protruding downward from the lower surface of the first side plate and a 1-2 portion curved or bent from the 1-1 portion, and the first groove is Includes a 1-1 groove formed by recessing the outer surface of the body and disposing the 1-1 part, and a 1-2 groove formed by recessing the lower surface of the body and disposing the 1-2 part can do.

The 1-1 groove may extend from the upper surface of the body to the lower surface of the body, and the 1-2 groove may extend from the 1-1 groove to one side.

The 1-2 groove may extend perpendicular to a direction in which the 1-1 groove extends from a lower portion of the 1-1 groove.

The body is divided into an upper part and a lower part by the height difference of the upper surface, the lower part is located at the edge of the upper part, the first side plate is disposed at the lower part, and the first groove is the lower surface of the lower part of the body. It is formed by being recessed, and the first protrusion protrudes downward from the lower surface of the first side plate and may be curved or bent toward the first groove.

The first protrusion includes a 1-1 portion protruding downward from the lower surface of the first side plate and a 1-2 portion curved or bent from the 1-1 portion, and the first groove is The outer surface of the upper end of the body and the outer surface of the lower end of the body are formed by being depressed, and the 1-1 groove in which the 1-1 part is disposed is formed by being depressed, and the lower surface of the lower end of the body is formed by being depressed. It may include a 1-2 groove in which the 1-2 part is disposed.

The cover includes a second side plate extending downward from the top plate and positioned on the opposite side of the first side plate, a second protrusion positioned on a lower surface of the first side plate and spaced apart from the first protrusion, and a lower surface of the second side plate. and a third protrusion located on a lower surface of the second side plate and spaced apart from the third protrusion, wherein the base includes a second groove in which the second protrusion is disposed, and the third protrusion. Further comprising a third groove in which is disposed, and a fourth groove in which the fourth protrusion is disposed, the first protrusion and the third protrusion are disposed to face each other, and the second protrusion and the fourth protrusion are opposed to each other can be placed.

The camera module of this embodiment includes a cover; a bobbin disposed within the cover; a lens module disposed within the bobbin; a first coil disposed on the bobbin; a magnet facing the first coil; a base disposed under the cover; a main substrate disposed below the base; An image sensor mounted on the main substrate, the cover including an upper plate, a first side plate extending downward from the upper plate, and a first protrusion located on a lower surface of the first side plate, and the base includes the first It may include a body in which the side plate is disposed and a first groove in which the first protrusion is disposed, and a portion of the first protrusion may be curved or bent to be disposed in the first groove.

The optical device of this embodiment includes a main body; a display panel disposed on one surface of the main body; It is disposed within the main body and includes a camera module electrically connected to the display panel, wherein the camera module includes a cover; a housing disposed within the cover; a lens module disposed within the bobbin; a first coil disposed on the bobbin; a magnet facing the first coil; a base disposed under the cover; a main substrate disposed below the base; An image sensor mounted on the main substrate, the cover including an upper plate, a first side plate extending downward from the upper plate, and a first protrusion located on a lower surface of the first side plate, and the base includes the first It may include a body in which the side plate is disposed and a first groove in which the first protrusion is disposed, and a portion of the first protrusion may be curved or bent to be disposed in the first groove.

In the lens driving device of the present embodiment, the cover is stably fixed to the base by the protruding portion bent or curved in the groove of the base and is not easily separated by external force. Furthermore, a camera module and an optical device including the lens driving device are provided.

1 is a perspective view showing a lens driving device of this embodiment.
2 is an exploded perspective view showing the lens driving device of this embodiment.
3 is a cross-sectional view of the lens driving device according to the present embodiment along the line AA'.
4 is a cross-sectional view of the lens driving device according to the present embodiment along line BB'.
5 is a perspective view showing a cover of the lens driving device of this embodiment.
6 is a perspective view showing a housing, a magnet, and a wire of the lens driving device according to this embodiment.
7 is a perspective view showing a bobbin, a first coil, an upper elastic member, and a lower elastic member of the lens driving device according to this embodiment.
8 is a perspective view showing a base, a substrate, and a second coil of the lens driving device according to this embodiment.
Fig. 9 is a perspective view of the base of the lens driving device of this embodiment seen from below.
10 is an enlarged perspective view of a part of FIG. 9 .
Fig. 11 is a perspective view of the lens driving device of this embodiment seen from below.
FIG. 12 is an enlarged perspective view of a part of FIG. 11 .

Hereinafter, some embodiments of the present invention will be described through exemplary drawings. In describing the reference numerals for the components of each drawing, the same numerals indicate the same components as much as possible, even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, the element may be directly connected, coupled, or connected to the other element, but not between the element and the other element. It should be understood that another component may be “connected”, “coupled” or “connected” between elements.

The "optical axis direction" used below is defined as the optical axis direction of the lens module coupled to the lens driving device. Meanwhile, "optical axis direction" may be interchanged with "vertical direction", "vertical direction", "z-axis direction", and the like.

The "auto focus function" used below is a function to focus on a subject by adjusting the distance to the image sensor by moving the lens module in the direction of the optical axis according to the distance of the subject so that a clear image of the subject can be obtained from the image sensor. Defined by Meanwhile, “auto focus” may be used interchangeably with “auto focus (AF)”.

The “hand shake correction function” used below is defined as a function of moving or tilting a lens module in a direction perpendicular to an optical axis direction to offset vibration (movement) generated in an image sensor by an external force. Meanwhile, "hand shake correction" may be used interchangeably with "Optical Image Stabilization (OIS)".

Hereinafter, the configuration of the optical device according to the present embodiment will be described. The optical device according to the present embodiment includes a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), and a portable multimedia player (PMP). ), navigation, etc., but is not limited thereto, and any device for capturing images or photos is possible. The optical device according to the present embodiment includes a main body (not shown), a display panel (not shown) disposed on one side (one surface) of the main body to display information, and a display panel (not shown) disposed inside the main body to take an image or photo. A camera module (not shown) may be included. The camera module is electrically connected to the display panel, and images or photos captured by the camera module can be played back on the display panel.

Hereinafter, a camera module according to this embodiment will be described. The camera module of this embodiment may include a lens module (not shown), an infrared cut filter (not shown), a main board (not shown), an image sensor (not shown), a controller (not shown), and a lens driving device 1000. there is.

A lens module may include a lens and a lens barrel. The lens module may include one or more lenses and a lens barrel accommodating the one or more lenses. However, one configuration of the lens module is not limited to the lens barrel, and any holder structure capable of supporting one or more lenses may be used. The lens module may be coupled to the lens driving device 10 and move. The lens module may be disposed within the bobbin 500 of the lens driving device 10 as an example. In this case, the lens module and the inner circumferential surface of the bobbin 500 may contact each other. The lens module may be screwed to the bobbin 500 as an example. As an example, the lens module may be coupled to the bobbin 500 by an adhesive. Meanwhile, light passing through the lens module may be irradiated to the image sensor.

The infrared cut filter may block light in the infrared region from being incident on the image sensor. An infrared cut filter may be positioned between the lens module and the image sensor as an example. The infrared cut filter may be located on a holder member (not shown) provided separately from the base 900 . However, the infrared cut filter may be mounted in a hole formed in the center of the base 900 . The infrared cut filter may be formed of, for example, a film material or a glass material. As an example, the infrared cut filter may be formed by coating an infrared cut coating material on a flat plate-shaped optical filter such as a cover glass for protecting an imaging surface or a cover glass.

The main board may be a printed circuit board (PCB). The main substrate may support the lens driving device 10 . An image sensor may be mounted on the main board. As an example, an image sensor may be located inside the upper surface of the main board, and a sensor holder (not shown) may be located outside the upper surface of the main board. A lens driving device 10 may be positioned above the sensor holder. Alternatively, the lens driving device 10 may be positioned outside the top surface of the main board, and the image sensor may be positioned inside the top surface of the main board. Through this structure, light passing through the lens module accommodated inside the lens driving device 10 may be irradiated to the image sensor mounted on the main board. The main board may supply power to the lens driving device 10 . Meanwhile, a controller for controlling the lens driving device 10 may be located on the main substrate.

The image sensor may be mounted on the main board. The image sensor may be positioned such that an optical axis coincides with the lens module. Through this, the image sensor may obtain light passing through the lens module. The image sensor may output irradiated light as an image. The image sensor may be, for example, a charge coupled device (CCD), a metal oxide semi-conductor (MOS), a CPD, and a CID. However, the type of image sensor is not limited thereto.

The controller may be mounted on the main board. The control unit may be located outside the lens driving device 10 . However, the control unit may be located inside the lens driving device 10 . The control unit may control the direction, strength, amplitude, and the like of the current supplied to each component of the lens driving device 10 . The controller may control the lens driving device 10 to perform at least one of an auto focus function and a hand shake correction function of the camera module. That is, the controller may control the lens driving device 10 to move the lens module in the direction of the optical axis, move or tilt the lens module in a direction perpendicular to the direction of the optical axis.

Furthermore, the control unit may perform feedback control of the hand shake correction function. More specifically, the controller may receive the position of the housing 200 sensed by the sensor 1400 and control power or current applied to the second coil 1300 to provide a precise hand-shake correction function.

Hereinafter, the lens driving device 10 of this embodiment will be described with reference to the drawings. 1 is a perspective view showing a lens driving device according to this embodiment, FIG. 2 is an exploded perspective view showing the lens driving device according to this embodiment, and FIG. 3 is a cross-sectional view of the lens driving device of this embodiment taken along line A-A'. 4 is a cross-sectional view of the lens driving device of this embodiment taken along line B-B', FIG. 5 is a perspective view showing a cover of the lens driving device of this embodiment, and FIG. 6 is a housing, magnet, and wire of the lens driving device of this embodiment. Figure 7 is a perspective view showing a bobbin, a first coil, an upper elastic member, and a lower elastic member of the lens driving device of this embodiment, Figure 8 is a base, a substrate and a second coil of the lens driving device of this embodiment , Fig. 9 is a perspective view of the base of the lens driving device of this embodiment viewed from below, Fig. 10 is an enlarged perspective view of a part of Fig. 9, and Fig. 11 is a perspective view of the lens driving device of this embodiment viewed from below. 12 is an enlarged perspective view of a part of FIG. 11 .

The lens driving device 10 of the present embodiment performs an autofocus function by moving the bobbin 400 in the optical axis direction (up and down, vertical direction) by electromagnetic interaction between the magnet 300 and the first coil 600. can To this end, the bobbin 400 may be elastically supported by the upper elastic member 700 and the lower elastic member 800 to be movable in the optical axis direction. The bobbin 400 may perform bidirectional movement in both upward and downward directions, or may perform unidirectional movement in either an upper or lower direction.

The lens driving device 10 of the present embodiment moves or tilts the housing 200 in a direction perpendicular to the optical axis by electromagnetic interaction between the magnet 300 and the second coil 1300 to perform a hand shake correction function. can do. To this end, the housing 200 may be elastically supported by the wire 400 so as to be movable or tilted in a direction perpendicular to the optical axis.

The lens driving device 10 of this embodiment includes a cover 100, a housing 200, a magnet 300, a wire 400, a bobbin 500, a first coil 600, an upper elastic member 700, a lower part It may include an elastic member 800, a base 900, a substrate 1000, a second coil 1300, and a sensor 1400. In this case, the cover 100, the housing 200, the magnet 300, the wire 400, the bobbin 500, the first coil 600, the upper elastic member 700, the lower elastic member 800, the base At least one member of the 900, the substrate 1000, the second coil 1300, and the sensor 1400 may be omitted and transformed into various structures. For example, when the housing 200 is omitted, the magnet 300 is the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 of the cover 100. It is disposed on the inside and can be combined with the inner surfaces of the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 of the cover 100.

The cover 100 may be an exterior member of the lens driving device 10 . The cover 110 may have a rectangular parallelepiped shape with an open lower surface. The housing 500, the first coil 600, the upper elastic member 700, the lower elastic member 800, the substrate 1000, and the second coil 1300 may be accommodated inside the cover 100. A base 900 may be disposed below the cover 100 . The cover 100 may be supported by the base 900 . The cover 100 may be coupled to the base 900 by an adhesive.

The material of the cover 100 may include metal. In this case, the cover 100 may block external electromagnetic waves from penetrating into the inside or internal electromagnetic waves from being discharged to the outside. That is, the cover 100 may shield electromagnetic waves. Accordingly, the cover 100 may be referred to as a "shield can". However, the material of the cover 100 is not limited thereto. For example, the material of the cover 100 may include plastic. In this case, the cover 100 may be manufactured by plastic injection.

The cover 100 includes a top plate 110, a first side plate 120, a second side plate 130, a third side plate 140, a fourth side plate 150, a first protrusion 121, and a second protrusion 122. ), a third protrusion 131, a fourth protrusion 132, a ground terminal 141, and an adhesive application unit 161.

The top plate 110 may have a square plate shape. The top plate 110 may form an upper surface of the cover 100 . A hole 101 may be formed in the center of the top plate 110 . The hole 101 of the upper plate 110 may be aligned with the optical axis. External light may be introduced into the lens driving device 10 through the hole 101 of the upper plate 110 . A first side plate 120 , a second side plate 130 , a third side plate 140 , and a fourth side plate 150 may be positioned on each of the four sides of the top plate 110 .

The first side plate 120 may extend downward from the first side of the top plate 110 . The second side plate 130 may extend downward from the second side of the top plate 110 . The third side plate 140 may extend downward from the third side of the top plate 110 . The fourth side plate 150 may extend downward from the fourth side of the top plate 110 .

The first side plate 120 and the second side plate 130 may be disposed facing each other (the second side plate is disposed on the opposite side of the first side plate, and vice versa). The third side plate 140 and the fourth side plate 150 may be disposed facing each other (the fourth side plate is disposed on the opposite side of the third side plate, and vice versa). The first side plate 120 and the second side plate 130 may be connected by the third side plate 140 and the fourth side plate 150, and vice versa. The first side plate 120 and the second side plate 130 may be disposed parallel to each other. The third side plate 140 and the fourth side plate 150 may be disposed parallel to each other.

The first side plate 120 and the third side plate 140 may be disposed with a corner interposed therebetween. The first side plate 120 and the third side plate 140 may be disposed adjacent to each other. The first side plate 120 and the fourth side plate 150 may be disposed with a corner interposed therebetween. The first side plate 120 and the fourth side plate 150 may be disposed adjacent to each other. The second side plate 130 and the third side plate 140 may be disposed with a corner interposed therebetween. The second side plate 130 and the third side plate 140 may be disposed adjacent to each other. The second side plate 130 and the fourth side plate 150 may be disposed with a corner interposed therebetween. The second side plate 130 and the fourth side plate 150 may be disposed adjacent to each other.

The first side plate 120 , the second side plate 130 , the third side plate 140 and the fourth side plate 150 may be disposed at the lower end U of the body 910 of the base 900 . The first side plate 120 , the second side plate 130 , the third side plate 140 and the fourth side plate 150 may be coupled to the lower end U of the body 910 of the base 900 . The lower surfaces of the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 and the upper surface of the lower end U of the body 910 of the base 900 may face each other. can The lower surfaces of the first side plate 120, the second side plate 130, the third side plate 140, and the fourth side plate 150 may come into contact with the upper surface of the lower end U of the body 910 of the base 900. there is. An adhesive is formed between the lower surfaces of the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 and the upper surface of the lower end U of the body 910 of the base 900. can be spread out.

The first protrusion 121 and the second protrusion 122 may be located on the first side plate 120 . The first protrusion 121 and the second protrusion 122 may be spaced apart from each other in the width direction of the first side plate 120 . The third protrusion 131 and the fourth protrusion 132 may be located on the second side plate 130 . The third protrusion 131 and the fourth protrusion 132 may be spaced apart from each other in the width direction of the second side plate 130 . The first protrusion 121 and the third protrusion 131 may face each other (the third protrusion is disposed on the opposite side of the first protrusion, and vice versa). At least a portion of the first protrusion 121 and the third protrusion 131 may overlap in a horizontal direction. The second protrusion 122 and the fourth protrusion 132 may face each other (the fourth protrusion is disposed on the opposite side of the second protrusion, and vice versa). At least a portion of the second protrusion 122 and the fourth protrusion 132 may overlap in a horizontal direction.

The first protrusion 121 may be located on the lower surface of the first side plate 120 . The first protrusion 121 may protrude downward from the lower surface of the first side plate 120 . The first protrusion 121 may be disposed in the first groove 920 of the base 900 . The first protrusion 121 may be curved or bent (bending). The first protrusion 121 may be curved or bent along a direction in which the first and second grooves 922 of the first groove 920 of the base 900 extend. The first protrusion 121 may be curved or bent toward the third protrusion 131 . The first protrusion 121 may be bent or bent at 90 degrees. The first protrusion 121 may be curved or bent perpendicular to the outer surface of the body 910 of the base 900 . The first protrusion 121 may be curved or bent perpendicular to the outer surface of the lower end U of the body 910 of the base 900. The first protrusion 121 is hooked to the base 900 to stably fix the cover 100 .

The first protrusion 121 is formed in the 1-1 portion 121-1 protruding downward from the lower surface of the first side plate 120 and the 1-1 portion 121-1 of the first protrusion 121. It may include a first-second portion 121-2 that is curved or bent and extended (see FIG. 12). In this case, the 1-2 portion 121-2 of the first protrusion 121 may be bent or bent to extend from the lower end of the 1-1 portion 121-1 of the first protrusion 121. The 1-1 portion 121-1 of the first protrusion 121 may be disposed in the 1-1 groove 921, and the 1-2 portion 121-2 of the first protrusion 121 may be It may be disposed in the 1-2 groove 922 .

The second protrusion 122 may be located on the lower surface of the first side plate 120 . The second protrusion 122 may protrude downward from the lower surface of the first side plate 120 . The second protrusion 122 may be disposed in the second groove 930 of the base 900 . The second protrusion 122 may be curved or bent (bending). The second protrusion 122 may be curved or bent along a direction in which the 2-2 groove 932 of the second groove 930 of the base 900 extends. The second protrusion 122 may be curved or bent toward the fourth protrusion 132 . The second protrusion 122 may be bent or bent at 90 degrees. The second protrusion 122 may be curved or bent perpendicular to the outer surface of the body 910 of the base 900 . The second protrusion 122 may be curved or bent perpendicular to the outer surface of the lower end U of the body 910 of the base 900. The second protrusion 122 is hooked to the base 900 to stably fix the cover 100 .

The second protrusion 122 includes a 2-1 portion that protrudes downward from the lower surface of the first side plate 120 and a 2-2 portion that is bent or bent and extends from the 2-1 portion of the second protrusion 122. (See FIG. 12, substantially the same form as the 1-1 portion and the 1-2 portion of the first protrusion). In this case, the 2-2 portion of the second protrusion 122 may be bent or bent to extend from the lower end of the 2-1 portion of the second protrusion 122 . The 2-1 portion of the second protrusion 122 may be disposed in the 2-1 groove 931, and the 2-2 portion of the second protrusion 122 may be disposed in the 2-2 groove 932. It can be.

The third protrusion 131 may be located on the lower surface of the second side plate 130 . The third protrusion 131 may protrude downward from the lower surface of the second side plate 130 . The third protrusion 131 may be disposed in the third groove 940 of the base 900 . The third protrusion 131 may be curved or bent (bending). The third protrusion 131 may be curved or bent along a direction in which the 3-2 groove 942 of the third groove 940 of the base 900 extends. The third protrusion 131 may be curved or bent toward the first protrusion 121 . The third protrusion 131 may be bent or bent at 90 degrees. The third protrusion 131 may be curved or bent perpendicular to the outer surface of the body 910 of the base 900 . The third protrusion 131 may be curved or bent perpendicular to the outer surface of the lower end U of the body 910 of the base 900 . The third protrusion 131 is hooked to the base 900 to stably fix the cover 100 .

The third protrusion 131 includes a 3-1 portion that protrudes downward from the lower surface of the second side plate 130 and a 3-2 portion that is bent or bent and extends from the 3-1 portion of the third protrusion 131. (See FIG. 12, substantially the same form as the 1-1 portion and the 1-2 portion of the first protrusion). In this case, the 3-2 portion of the third protrusion 131 may be bent or bent to extend from the lower end of the 3-1 portion of the third protrusion 131 . The 3-1 portion of the third protrusion 131 may be disposed in the 3-1 groove 941, and the 3-2 portion of the third protrusion 131 may be disposed in the 3-2 groove 942. It can be.

The fourth protrusion 132 may be located on the lower surface of the second side plate 130 . The fourth protrusion 132 may protrude downward from the lower surface of the second side plate 130 . The fourth protrusion 132 may be disposed in the fourth groove 950 of the base 900 . The fourth protrusion 132 may be curved or bent (bending). The fourth protrusion 132 may be curved or bent along a direction in which the 4-2 groove 952 of the fourth groove 950 of the base 900 extends. The fourth protrusion 132 may be curved or bent toward the second protrusion 122 . The fourth protrusion 132 may be bent or bent at 90 degrees. The fourth protrusion 132 may be curved or bent perpendicular to the outer surface of the body 910 of the base 900 . The fourth protrusion 132 may be curved or bent perpendicular to the outer surface of the lower end U of the body 910 of the base 900 . The fourth protrusion 132 is hooked to the base 900 to stably fix the cover 100 .

The fourth protrusion 132 is a 4-1 portion that protrudes downward from the lower surface of the second side plate 130 and a 4-2 portion that is bent or bent and extends from the 4-1 portion of the fourth protrusion 132. (See FIG. 12, substantially the same form as the 1-1 portion and the 1-2 portion of the first protrusion). In this case, the 4-2 portion of the fourth protrusion 132 may be bent or bent to extend from the lower end of the 4-1 portion of the fourth protrusion 132 . The 4-1 portion of the fourth protrusion 132 may be disposed in the 4-1 groove 951, and the 4-2 portion of the fourth protrusion 132 may be disposed in the 4-2 groove 952. It can be.

The ground terminal 141 may be located on the lower surface of the fourth side plate 150 . The ground terminal 141 may protrude downward from the lower surface of the fourth side plate 150 . The ground terminal 141 may be disposed in the fifth groove 960 of the base 900 . The ground terminal 141 may be electrically connected to the main board of the camera module. As a result, residual electromagnetic energy accumulated in the cover 100 may be discharged to the outside through the ground terminal 141 .

The adhesive application unit 161 may be a groove for applying adhesive. The number of adhesive application units 161 may be plural. The plurality of adhesive application units 161 may be located on the lower surface of the first side plate 120 and the lower surface of the second side plate 130 .

The adhesive application unit 161 located on the first side plate 120 may be located between the first protrusion 121 and the second protrusion 122 . The adhesive application unit 161 located on the first side plate 120 may be formed by being recessed upward from the lower surface of the first side plate 120 (so that the lower surface of the first side plate enters the upper side). Therefore, a space can be formed between the upper surface of the lower end U of the body 910 of the base 900 and the lower surface of the first side plate 120 by the adhesive application unit 161 located on the first side plate 120. . An adhesive is applied to this space to stably fix the cover 100 .

The adhesive application unit 161 located on the second side plate 130 may be located between the third protrusion 131 and the fourth protrusion 132 . The adhesive application unit 161 located on the second side plate 130 may be formed by being recessed upward from the lower surface of the second side plate 130 (so that the lower surface of the first side plate enters the upper side). Therefore, a space can be formed between the upper surface of the lower end U of the body 910 of the base 900 and the lower surface of the second side plate 130 by the adhesive application unit 161 located on the second side plate 130. . An adhesive is applied to this space to stably fix the cover 100 .

The housing 200 may include a plastic material. The housing 200 may be manufactured by plastic insert injection molding. That is, the housing 200 may be a plastic injection molding.

A driving force may be applied to the housing 200 by electromagnetic interaction between the magnet 300 and the second coil 1300 . The housing 200 may be moved or tilted in a direction perpendicular to the optical axis by a driving force. In this case, the lens module of the camera module may move integrally with the housing 200 to perform a hand shake correction function.

The housing 200 may have a hollow shape in which a hole 201 is formed in the center. A bobbin 500 may be disposed in the hole 201 of the housing 200 . That is, the bobbin 500 may be disposed within the housing 200 . A magnet 300 may be disposed in the housing 200 . An upper elastic member 700 may be disposed on the housing 200 . A lower elastic member 800 may be disposed below the housing 200 . A substrate 1000 may be disposed below the housing 200 . A lower elastic member 800 may be disposed between the housing 200 and the substrate 1000 . A base 900 may be disposed below the housing 200 . A lower elastic member 800 and a substrate 1000 may be disposed between the housing 200 and the base 900 . The housing 200 and the substrate 1000 may be connected by a wire 400 . The housing 200 and the base 900 may be connected by a wire 400. The housing 200 may be elastically supported by the wire 400 . The housing 200 may be spaced upward from the substrate 1000 and the base 900 by the wire 400 . That is, the housing 200 may be lifted by the wire 400 and moved or tilted in a direction perpendicular to the optical axis.

The housing 200 may include a first side part 210, a second side part 220, a third side part 230, a fourth side part 240, a magnet accommodating part 250 and a stopper accommodating part 260. there is.

The first side portion 210 and the second side portion 220 may face each other with the magnet 300, the bobbin 500, and the first coil 600 interposed therebetween (the second side portion is disposed on the opposite side of the first side portion). can be, and vice versa). The third side portion 230 and the fourth side portion 240 may face each other with the magnet 300, the bobbin 500, and the first coil 600 interposed therebetween (the fourth side portion is disposed on the opposite side of the third side portion). can be, and vice versa). The first side part 210 and the second side part 220 may be connected by the third side plate 230 and the fourth side part 240, and vice versa. The first side part 210 and the second side part 220 may be disposed parallel to each other. The third side part 230 and the fourth side part 240 may be disposed parallel to each other.

A magnet 300 may be disposed in the magnet accommodating part 250 . Four magnet accommodating parts 250 may exist. The four magnet receiving parts 250 are the corner between the first side part 210 and the third side part 230, the corner between the third side part 230 and the second side part 220, and the second side part 220 and The corner between the fourth side part 240 and the corner between the fourth side part 240 and the first side part 210 may be respectively located. A first magnet 310 , a second magnet 320 , a third magnet 330 , and a fourth magnet 340 may be respectively disposed in the four magnet accommodating parts 250 .

The stopper 510 of the bobbin 500 may be disposed in the stopper accommodating part 260 . Four stopper accommodating parts 260 may exist. The four stopper accommodating parts 260 may be located on the first side part 210, the second side part 220, the third side part 230, and the fourth side part 240, respectively. The four stopper accommodating portions 260 are recessed downward from the upper surfaces of the first side portion 210, the second side portion 220, the third side portion 230, and the fourth side portion 240 (the first side portion and the second side portion 260). It may be formed so that the upper surfaces of the side, the third side, and the fourth side go downward. Four stoppers 510 of the bobbin 500 may be respectively disposed in the four stopper accommodating parts 260 . The rotation or downward movement of the bobbin 500 may be blocked by the four stoppers 510 of the bobbin 500 .

The magnet 300 may be disposed on the housing 200 . The magnet 300 may be disposed in the magnet accommodating part 250 of the housing 200 . The magnet 300 may be disposed to face the first coil 600 . The magnet 300 may be disposed to face the second coil 1300 . When current is applied to the first coil 600, the magnet 300 and the first coil 600 may interact electromagnetically. In this case, the bobbin 500 may perform an auto focus function by moving in the optical axis direction. When current is applied to the second coil 1300, the magnet 300 and the second coil 1300 may interact electromagnetically. In this case, the housing 200 may be moved or tilted in a direction perpendicular to the optical axis to perform a hand shake correction function. The magnet 300 may include a first magnet 310 , a second magnet 320 , a third magnet 330 and a fourth magnet 340 . The first magnet 310 , the second magnet 320 , the third magnet 330 , and the fourth magnet 340 may be disposed in the four magnet accommodating parts 250 of the housing 200 .

The wire 400 may extend in the optical axis direction and have a length. An upper end of the wire 400 may be disposed in the housing 200 . An upper end of the wire 400 may be disposed at a corner of the housing 200 . An upper end of the wire 400 may pass through the housing 200 and be disposed on the upper elastic member 700 . In this case, the wire 400 may be electrically connected to the upper elastic member 700 . A lower end of the wire 400 may be disposed on the substrate 1000 . In this case, the wire 400 may be electrically connected to the substrate 1000 . A lower end of the wire 400 may pass through the substrate 1000 and be disposed on the base 900 . The wire 400 may elastically support the housing 200 .

The wire 400 may also serve as a conductive member that receives current from the substrate 1000 and transfers it to the upper elastic member 700 . The current supplied to the upper elastic member 700 may be applied to the first coil 600 .

The wire 400 may include a first wire 410, a second wire 420, a third wire 430 and a fourth wire 440.

The first wire 410 may be located outside the first magnet 310 . The first wire 410 may extend downward from a corner between the first side portion 210 and the fourth side portion 240 and be fixed to the substrate 1000 . The first wire 410 may pass through a corner between the first side portion 210 and the fourth side portion 240 and be fixed to the first upper elastic member 710 . The first wire 410 may pass through the substrate 1000 and be fixed to the base 900 .

The second wire 420 may be located outside the second magnet 320 . The second wire 420 may extend downward from a corner between the second side portion 220 and the third side portion 230 and be fixed to the substrate 1000 . The second wire 420 may pass through a corner between the second side portion 220 and the third side portion 230 and be fixed to the second upper elastic member 720 . The second wire 420 may pass through the substrate 1000 and be fixed to the base 900 .

The third wire 430 may be located outside the third magnet 330 . The third wire 430 may extend downward from a corner between the first side portion 210 and the third side portion 230 and be fixed to the substrate 1000 . The third wire 430 may pass through a corner between the first side portion 210 and the third side portion 230 and be fixed to the first upper elastic member 710 . The third wire 430 may pass through the substrate 1000 and be fixed to the base 900 .

The fourth wire 440 may be located outside the fourth magnet 340 . The fourth wire 440 may extend downward from a corner between the second side portion 220 and the fourth side portion 240 and be fixed to the substrate 1000 . The fourth wire 440 may pass through a corner between the second side portion 220 and the fourth side portion 240 and be fixed to the second upper elastic member 720 . The fourth wire 440 may pass through the substrate 1000 and be fixed to the base 900 .

One of the first wire 410 and the third wire 430 may be electrically connected to the first upper elastic member 710 . One of the second wire 420 and the fourth wire 440 may be electrically connected to the second upper elastic member 720 .

The bobbin 500 may include a plastic material. The bobbin 500 may be manufactured by plastic insert injection molding. That is, the bobbin 500 may be a plastic injection molding.

Driving force may be applied to the bobbin 500 by electromagnetic interaction between the magnet 300 and the first coil 600 . The bobbin 500 may move in an optical axis direction. In this case, the lens module of the camera module may move integrally with the bobbin 500 to perform an auto focus function.

The bobbin 500 may have a hollow shape in which a hole 501 is formed in the center. A lens module of a camera module may be disposed in the hole 501 of the bobbin 500 . That is, a lens module may be disposed within the bobbin 500 . A first coil 600 may be disposed on the bobbin 500 . A first coil 600 may be disposed on an outer circumferential surface of the bobbin 500 . An upper elastic member 700 may be disposed on the bobbin 500 . A lower elastic member 800 may be disposed below the bobbin 500 . The bobbin 500 and the housing 200 may be connected by an upper elastic member 700 and a lower elastic member 800 . The bobbin 500 may be elastically supported by the upper elastic member 700 and the lower elastic member 800 . As a result, the bobbin 500 may be spaced apart from the housing 200 . Furthermore, the bobbin 500 may move in the optical axis direction by the upper elastic member 700 and the lower elastic member 800 .

The bobbin 500 may include a stopper 510 . The stopper 510 may protrude outward from the outer circumferential surface of the bobbin 500 . The stopper 510 may be located above the first coil 600 . The stopper 510 may be accommodated in the stopper accommodating portion 260 of the housing 200 . The number of stoppers 510 may be four. The four stoppers 510 may be accommodated in each of the four stopper accommodating parts 260 . Rotational movement or downward movement of the bobbin 500 may be blocked when the four stoppers 510 come into contact with the housing 200 .

The first coil 600 may be a coil block wound (wound) on the outer circumferential surface of the bobbin 500 . The first coil 600 may be disposed to face the magnet 300 . The first coil 600 may provide driving force to the bobbin 500 by electromagnetically interacting with the magnet 300 when current is applied thereto. The first coil 600 may be electrically connected to the upper elastic member 700 . One end and the other end of the first coil 500 may be drawn out from the coil block. One end of the first coil 500 may be electrically connected to the first upper elastic member 710 . The other end of the first coil 500 may be electrically connected to the second upper elastic member 720 . A current circuit may be formed by the first coil 500, the upper elastic member 700, the wire 400, and the substrate 1000. Current may be supplied from the substrate 1000 to the first coil 500 through the wire 400 and the upper elastic member 700 . In this case, the direction, intensity, and wavelength of the current supplied from the substrate 1000 may be controlled by the controller of the camera module.

The upper elastic member 700 may be a plate spring. The upper elastic member 700 may be disposed above the housing 200 and the bobbin 500 . The upper elastic member 700 may be disposed on the upper surface of the housing 200 and the upper surface of the bobbin 500 . The upper elastic member 700 may be coupled to the upper surface of the housing 200 and the upper surface of the bobbin 500 . The upper elastic member 700 may connect the housing 200 and the bobbin 500. The upper elastic member 700 may elastically support the bobbin 500 . The upper elastic member 700 may be electrically connected to the first coil 600 . The upper elastic member 700 may be electrically connected to the wire 400 .

The upper elastic member 700 may include a first upper elastic member 710 and a second upper elastic member 720 . The first upper elastic member 710 and the second upper elastic member 720 may be spaced apart from each other. The first upper elastic member 710 and the second upper elastic member 720 may be electrically connected to the first coil 600, respectively. The first upper elastic member 710 may be electrically connected to one of the first wire 410 and the third wire 430 . The second upper elastic member 710 may be electrically connected to the second wire 420 and the fourth wire 440 . One of the first upper elastic member 710, the first wire 410, and the third wire 430 may be a (+) conductive line. One of the second upper elastic member 720, the second wire 420, and the fourth wire 440 may be a (-) conductive line.

The first upper elastic member 710 may include a 1-1 coupling portion 711 , a 1-2 coupling portion 712 , and a first connection portion 713 . The 1-1 coupling part 711 may be disposed on the upper surface of the housing 200 and may be coupled with the upper surface of the housing 200 . The first-second coupling part 712 may be disposed on the upper surface of the bobbin 500 and may be coupled with the upper surface of the bobbin 500 . The 1-2 coupling part 712 may be located inside the 1-1 coupling part 711 . One end of the first coil 600 may be soldered to the first-second coupling part 712 . The first-second coupler 712 may be electrically connected to one end of the first coil 600 . The first connection part 713 may elastically connect the 1-1 coupling part 711 and the 1-2 coupling part 712 . The first-second coupling part 712 and the first connection part 713 may be separated into two or more members spaced apart from each other.

The second upper elastic member 720 may include a 2-1 coupling portion 721 , a 2-2 coupling portion 722 and a second connection portion 723 . The 2-1 coupling part 721 may be disposed on the upper surface of the housing 200 and may be engaged with the upper surface of the housing 200 . The 2-2 coupling part 722 may be disposed on the upper surface of the bobbin 500 and may be coupled with the upper surface of the bobbin 500 . The 2-2 coupling part 722 may be located inside the 2-1 coupling part 721 . The other end of the first coil 600 may be soldered to the 2-2 coupling part 722 . The 2-2 coupling part 722 may be electrically connected to the other end of the first coil 600 . The second connection part 723 may elastically connect the 2-1 coupling part 721 and the 2-2 coupling part 722 . The 2-2 coupling part 722 and the second connection part 723 may be separated into two or more members spaced apart from each other.

The lower elastic member 800 may be a plate spring. The lower elastic member 800 may be disposed below the housing 200 and the bobbin 500 . The lower elastic member 800 may be disposed on a lower surface of the housing 200 and a lower surface of the bobbin 500 . The lower elastic member 800 may be coupled to the lower surface of the housing 200 and the lower surface of the bobbin 500 . The lower elastic member 800 may connect the housing 200 and the bobbin 500. The lower elastic member 800 may elastically support the bobbin 500 .

The lower elastic member 800 may include a first coupling portion 810 , a second coupling portion 820 and a connection portion 830 . The first coupling part 810 may be disposed on the lower surface of the housing 200 and may be coupled with the lower surface of the housing 200 . The second coupling part 820 may be disposed on the lower surface of the bobbin 500 and may be coupled with the lower surface of the bobbin 500 . The second coupling part 820 may be located inside the first coupling part 810 . The connecting portion 830 may elastically connect the first coupling portion 810 and the second coupling portion 820 . The second coupling part 820 and the connection part 830 may be separated into two or more members spaced apart from each other.

The base 900 may be disposed below the cover 100 . The base 900 may support the cover 100 . The cover 100 may be disposed on the base 900 . The base 900 may be disposed below the housing 200 and the bobbin 500 . The base 900 may be spaced downward from the housing 200 and the bobbin 500 . A substrate 1000 may be disposed on an upper surface of the base 900 .

The base 900 includes a body 910, a first groove 920, a second groove 930, a third groove 940, a fourth groove 950, a fifth groove 960, and a sixth groove 970. ), a first terminal support part 971, a seventh groove 980, and a second terminal support part 981.

The body 910 may have an approximate rectangular plate shape. A hole 901 may be formed in the center of the body 910 . Light transmitted through the lens module through the hole 901 of the body 910 may be irradiated to the image sensor. A first side plate 120, a second side plate 130, a third side plate 140, and a fourth side plate 150 of the cover 100 may be disposed on the body 910. The upper surface of the body 910 and the lower surfaces of the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 may face each other. An adhesive may be applied between the upper surface of the body 910 and the lower surfaces of the first side plate 120 , the second side plate 130 , the third side plate 140 and the fourth side plate 150 . The upper surface of the body 910 and the lower surfaces of the first side plate 120 , the second side plate 130 , the third side plate 140 and the fourth side plate 150 may contact each other. A substrate 1000 may be disposed on an upper surface of the body 910 . In this case, the substrate 1000 may be disposed inside the cover 100 and positioned inside the first side plate 120, the second side plate 130, the third side plate 140, and the fourth side plate 150. .

The body 910 may be divided into an upper end (U) and a lower end (L) by the height difference between the top surfaces. The lower end (L) of the body 910 may be located at the edge of the upper end (U) of the body 910. The lower end (L) of the body 910 may protrude outward from the outer surface of the upper end (U) of the body 910 . The upper surface of the lower end (L) of the body 910 may be positioned lower than the upper surface of the upper end (U) of the body 910.

The substrate 1000 may be disposed on the upper surface of the upper end H of the body 910 . The first side plate 120, the second side plate 130, the third side plate 140, and the fourth side plate 150 of the cover 100 may be disposed at the lower end (L) of the body 910. The upper surface of the lower end (L) of the body 910 and the lower surfaces of the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 may face each other. An adhesive may be applied between the upper surface of the lower end (L) of the body 910 and the lower surfaces of the first side plate 120, the second side plate 130, the third side plate 140, and the fourth side plate 150. The upper surface of the lower end (L) of the body 910 and the lower surfaces of the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 may contact each other.

The first protrusion 121 of the cover 100 may be disposed in the first groove 920 . An adhesive may be applied to the first groove 920 . The first groove 920 may include a 1-1 groove 921 and a 1-2 groove 922 .

The 1-1 groove 921 may extend in a vertical direction. The 1-1 groove 921 may extend from the upper surface of the body 910 to the lower surface of the body 910 . The 1-1 groove 921 may be formed by recessing the outer surface of the body 910 (formed so that the outer surface of the body goes inward). The 1-1 groove 921 may extend from the upper surface of the upper end U of the body 910 to the lower surface of the lower end L of the body 910 . The 1-1 groove 921 may be formed by recessing the outer surface of the upper end (U) of the body 910 and the outer surface of the lower end (L) of the body 910 (the outer surface of the upper end of the body and the body). Formed so that the outer surface of the lower end of the goes inward). A portion protruding downward from the lower surface of the first side plate 120 in the first protrusion 121 may be disposed in the 1-1 groove 921 .

The 1-2 grooves 922 may extend in a horizontal direction. The 1-2 groove 922 may extend from the bottom of the 1-1 groove 921 to one side. The 1-2 groove 922 may extend perpendicular to the direction in which the 1-1 groove 921 extends. The first-second groove 922 may extend perpendicularly to the outer surface of the body 910 . The 1-2 groove 922 may extend from the bottom of the 1-1 groove 921 in a direction where the 3-2 groove 942 is located. The first-second groove 922 may be formed by recessing the lower surface of the body 910 (formed so that the lower surface of the body enters the upper side). The first-second groove 922 may be located at the lower end (L) of the body 910 . The 1-2 groove 922 may be formed by recessing the lower surface of the lower end (L) of the body 910 (formed so that the lower surface of the lower end of the body enters the upper side). The first protrusion 121 may be curved or bent along the first-second groove 922 . The first-second groove 922 may extend beyond the end of the first protrusion 121 . As a result, an extra space (S, see FIG. 12 ) extending beyond the first protrusion 121 may exist in the first-second groove 922 . An adhesive is applied to the excess space S thus formed, so that the first protrusion 121 can be stably fixed to the base 900 .

In a modification of this embodiment (not shown), the 1-2 grooves 922 may include a first accommodating portion where the first protrusion 121 is disposed and a second accommodating portion located under the first accommodating portion and having an adhesive applied thereto. can The second accommodating part extends further from the 1-1 groove 921 than the first accommodating part, so that a sufficient adhesive application space may be secured.

The second protrusion 122 of the cover 100 may be disposed in the second groove 930 . An adhesive may be applied to the second groove 930 . The second groove 930 may include a 2-1 groove 931 and a 2-2 groove 932 .

The 2-1 groove 931 may extend in a vertical direction. The 2-1 groove 931 may extend from the upper surface of the body 910 to the lower surface of the body 910 . The 2-1 groove 921 may be formed by recessing the outer surface of the body 930 (formed such that the outer surface of the body goes inward). The 2-1 groove 931 may extend from the upper surface of the upper end U of the body 910 to the lower surface of the lower end L of the body 910 . The 2-1 groove 931 may be formed by recessing the outer surface of the upper end (U) of the body 910 and the outer surface of the lower end (L) of the body 910 (the outer surface of the upper end of the body and the body). Formed so that the outer surface of the lower end of the goes inward). A portion protruding downward from the lower surface of the first side plate 120 in the second protrusion 122 may be disposed in the 2-1 groove 931 .

The 2-2 groove 932 may extend in a horizontal direction. The 2-2 groove 932 may extend from the bottom of the 2-1 groove 931 to one side. The 2-2 groove 932 may extend perpendicular to the direction in which the 2-1 groove 931 extends. The 2-2 groove 932 may extend perpendicularly to the outer surface of the body 910 . The 2-2 groove 932 may extend from the bottom of the 2-1 groove 931 in a direction where the 4-2 groove 952 is located. The 2-2 groove 932 may be formed by recessing the lower surface of the body 910 (formed so that the lower surface of the body enters the upper side). The 2-2 groove 932 may be located at the lower end (L) of the body 910 . The 2-2 groove 932 may be formed by recessing the lower surface of the lower end (L) of the body 910 (formed such that the lower surface of the lower end of the body enters the upper side). The second protrusion 122 may be curved or bent along the 2-2 groove 932 . The 2-2 groove 932 may extend beyond the end of the second protrusion 122 . As a result, an extra space extending beyond the second protrusion 122 may exist in the 2-2 groove 932 . An adhesive is applied to the excess space thus formed, so that the second protrusion 122 can be stably fixed to the base 900 .

In a modification of this embodiment (not shown), the 2-2 groove 932 may include a first accommodating portion where the second protrusion 122 is disposed and a second accommodating portion located below the first accommodating portion and having an adhesive applied thereto. can The second accommodating part extends further from the 2-1 groove 931 than the first accommodating part, so that a sufficient adhesive application space may be secured.

The fourth protrusion 131 of the cover 100 may be disposed in the third groove 940 . An adhesive may be applied to the third groove 940 . The third groove 940 may include a 3-1 groove 941 and a 3-2 groove 942 .

The 3-1 groove 941 may extend in a vertical direction. The 3-1 groove 941 may extend from the upper surface of the body 910 to the lower surface of the body 910 . The 3-1 groove 941 may be formed by recessing the outer surface of the body 910 (formed so that the outer surface of the body goes inward). The 3-1 groove 941 may extend from the upper surface of the upper end U of the body 910 to the lower surface of the lower end L of the body 910 . The 3-1 groove 941 may be formed by recessing the outer surface of the upper end (U) of the body 910 and the outer surface of the lower end (L) of the body 910 (the outer surface of the upper end of the body and the body). Formed so that the outer surface of the lower end of the goes inward). A portion protruding downward from the lower surface of the second side plate 130 in the third protrusion 131 may be disposed in the 3-1 groove 941 .

The 3-2 groove 942 may extend in a horizontal direction. The 3-2 groove 942 may extend from the bottom of the 3-1 groove 941 to one side. The 3-2 groove 942 may extend perpendicular to the direction in which the 3-1 groove 941 extends. The 3-2 groove 942 may extend perpendicularly to the outer surface of the body 910 . The 3-2 groove 942 may extend from the bottom of the 3-1 groove 941 in a direction where the 1-2 groove 922 is located. The 3-2 groove 942 may be formed by recessing the lower surface of the body 910 (formed so that the lower surface of the body enters the upper side). The 3-2 groove 942 may be located at the lower end (L) of the body 910 . The 3-2 groove 942 may be formed by recessing the lower surface of the lower end (L) of the body 910 (formed such that the lower surface of the lower end of the body enters the upper side). The third protrusion 131 may be curved or bent along the 3-2 groove 942 . The 3-2 groove 942 may extend beyond the end of the third protrusion 131 . As a result, an extra space extending beyond the third protrusion 131 may exist in the 3-2 groove 942 . An adhesive is applied to the excess space thus formed, so that the third protrusion 131 can be stably fixed to the base 900 .

In a modification of this embodiment (not shown), the 3-2 groove 942 may include a first accommodating portion where the third protrusion 131 is disposed and a second accommodating portion located under the first accommodating portion and having an adhesive applied thereto. can The second accommodating part extends further from the 3-1 groove 941 than the first accommodating part, so that a sufficient adhesive application space may be secured.

The fourth protrusion 132 of the cover 100 may be disposed in the fourth groove 950 . An adhesive may be applied to the fourth groove 950 . The fourth groove 950 may include a 4-1 groove 951 and a 4-2 groove 952 .

The 4-1 groove 951 may extend in a vertical direction. The 4-1 groove 951 may extend from the upper surface of the body 910 to the lower surface of the body 910 . The 4-1 groove 951 may be formed by recessing the outer surface of the body 910 (formed so that the outer surface of the body goes inward). The 4-1 groove 951 may extend from the upper surface of the upper end U of the body 910 to the lower surface of the lower end L of the body 910 . The 4-1 groove 951 may be formed by recessing the outer surface of the upper end (U) of the body 910 and the outer surface of the lower end (L) of the body 910 (the outer surface of the upper end of the body and the body) Formed so that the outer surface of the lower end of the goes inward). A portion protruding downward from the lower surface of the second side plate 130 in the fourth protrusion 132 may be disposed in the 4-1 groove 951 .

The 4-2 groove 952 may extend in a horizontal direction. The 4-2 groove 952 may extend from the bottom of the 4-1 groove 951 to one side. The 4-2 groove 952 may extend perpendicular to the direction in which the 4-1 groove 951 extends. The 4-2 groove 952 may extend perpendicularly to the outer surface of the body 910 . The 4-2 groove 952 may extend from the bottom of the 4-1 groove 951 in a direction where the 2-2 groove 932 is located. The 4-2 groove 952 may be formed by recessing the lower surface of the body 910 (formed so that the lower surface of the body enters the upper side). The 4-2 groove 952 may be located at the lower end (L) of the body 910. The 4-2 groove 952 may be formed by recessing the lower surface of the lower end (L) of the body 910 (formed so that the lower surface of the lower end of the body enters the upper side). The fourth protrusion 132 may be curved or bent along the 4-2 groove 952 . The 4-2 groove 952 may extend beyond the end of the fourth protrusion 132 . As a result, an extra space extending beyond the fourth protrusion 132 may exist in the 4-2 groove 952 . An adhesive is applied to the excess space S thus formed, so that the fourth protrusion 132 can be stably fixed to the base 900 .

In a modification of this embodiment (not shown), the 4-2 groove 952 may include a first accommodating part where the fourth protrusion 132 is disposed and a second accommodating part located under the first accommodating part and having an adhesive applied thereto. can The second accommodating part extends further from the 4-1 groove 951 than the first accommodating part, so that sufficient adhesive application space can be secured.

* The ground terminal 141 of the cover 100 may be disposed in the fifth groove 960 . An adhesive may be applied to the fifth groove 960 . The fifth groove 960 may be located adjacent to the sixth groove 970 . The fifth groove 960 may be connected to the sixth groove 970 .

The fifth groove 960 may be formed by recessing the outer surface of the body 910 (formed such that the outer surface of the body goes inward). The fifth groove 960 may be formed by recessing the outer surface of the upper end U of the body 910 and the outer surface of the lower end L of the body 910 (the outer surface of the upper end of the body and the lower end of the body). Formed so that the outer surface of the goes inward). A portion protruding downward from the lower surface of the third side plate 140 from the ground terminal 141 may be disposed in the fifth groove 960 . An outer surface of the body 910 positioned in the fifth groove 960 and an inner surface of the ground terminal 141 may face each other. An adhesive may be applied between the outer surface of the body 910 located in the fifth groove 960 and the inner surface of the ground terminal 141 . An outer surface of the body 910 located in the fifth groove 960 may contact an inner surface of the ground terminal 141 .

The first terminal 1110 of the first substrate 1100 of the substrate 1000 may be disposed in the sixth groove 970 . The sixth groove 970 may be located adjacent to the fifth groove 960 . The sixth groove 970 may be connected to the fifth groove 960 .

The sixth groove 970 may be formed by recessing the outer surface of the body 910 (formed such that the outer surface of the body goes inward). The sixth groove 970 may be formed by recessing the outer surface of the upper end U of the body 910 and the outer surface of the lower end L of the body 910 (the outer surface of the upper end of the body and the lower end of the body). Formed so that the outer surface of the goes inward). The first terminal support part 971 may be located in the sixth groove 970 .

The first terminal support part 971 may be located in the sixth groove 970 . The first terminal support part 971 may have a flat plate shape extending downward from the sixth groove 970 . The first terminal support part 971 may support the first terminal 1110 . An upper part (at least a part) of the outer surface of the first terminal support part 971 may face the inner surface of the third side plate 140 of the cover 100 . An adhesive may be applied between the outer surface of the first terminal support part 971 and the inner surface of the first terminal 1110 . An outer surface of the first terminal support part 971 and an inner surface of the first terminal 1110 may contact each other.

The second terminal 1120 of the first substrate 1100 of the substrate 1000 may be disposed in the seventh groove 980 .

The seventh groove 980 may be formed by recessing the outer surface of the body 910 (formed so that the outer surface of the body goes inward). The seventh groove 960 may be formed by recessing the outer surface of the upper end U of the body 910 and the outer surface of the lower end L of the body 910 (the outer surface of the upper end of the body and the lower end of the body). Formed so that the outer surface of the goes inward).

The second terminal support part 981 may be located in the seventh groove 980 . The second terminal support 981 may have a flat plate shape extending downward from the seventh groove 980 . The second terminal support part 981 may support the second terminal 1120 . An upper portion (at least a portion) of an outer surface of the second terminal support portion 981 may face an inner surface of the fourth side plate 150 of the cover 100 . An adhesive may be applied between the outer surface of the second terminal support part 981 and the inner surface of the second terminal 1120 . An outer surface of the second terminal support part 981 and an inner surface of the second terminal 1120 may contact each other.

The substrate 1000 may be disposed on the base 900 . The substrate 1000 may be disposed below the housing 200 and the bobbin 500 . A lower elastic member 800 may be positioned between the substrate 1000 and the housing 200 . A lower end of the wire 400 may be fixed to the substrate 1000 . In this case, the lower end of the wire 400 may pass through the substrate 1000 and extend to the base 900 . The substrate 1000 may be electrically connected to the wire 400 . A second coil 1300 may be mounted on the substrate 1000 . The board 1000 may be electrically connected to the main board of the camera module. The substrate 1000 may receive current supplied from the main substrate and transmit it to the wire 400 . The substrate 1000 may receive current from the main substrate and transmit it to the second coil 13000 . In this case, the intensity, direction, and amplitude of the current transmitted from the substrate 1000 may be controlled by the control unit of the camera module.

The substrate 1000 may include a first substrate 1100 and a second substrate 1200 . The first substrate 1100 may be a flexible printed circuit board (FPCB). The first substrate 1100 may have a square plate shape in which a hole 1101 is formed in the center. Light transmitted through the lens module through the hole 1101 of the first substrate 1100 may be irradiated to the image sensor. The first substrate 1100 may be disposed below the second substrate 1200 . The first substrate 1100 may be electrically connected to the second substrate 1200 . The first substrate 1100 may include a first terminal 1110 and a second terminal 1120 . The first terminal 1110 and the second terminal 1120 may be electrically connected to the main board of the camera module. The first substrate 1100 may be disposed on the base 900 . The first substrate 1100 may be disposed on an upper surface of the body 910 of the base 900 . The first substrate 1100 may be disposed on an upper surface of the upper end U of the body 910 of the base 900 . The second substrate 1200 may be a printed circuit board (PCB). The second substrate 1200 may be disposed below the housing 200 . The second substrate 1200 may be disposed below the lower elastic member 800 . The second coil 1300 may be mounted on the second substrate 1200 .

Meanwhile, in the lens driving device 10 of this embodiment, the first terminal 1110 and the second terminal 1120 may be arranged in various ways according to design requirements. For example, either one of the first terminal 1110 and the second terminal 1120 may be omitted, and both the first terminal 1110 and the second terminal 1120 are of the main body 910 of the base 900. It may be disposed in one of the sixth groove 970 (one outer surface) or the seventh groove 980 (the other outer surface). In this case, the first terminal 1110 and the second terminal 1120 may be disposed adjacent to each other.

The second coil 1300 may be a pattern coil mounted on the second substrate 1200 . The second coil 1300 may face the magnet 300 . When a current is applied, the second coil 1300 may provide driving force to the housing 200 by electromagnetically interacting with the magnet 300 . The second coil 1300 may include a 2-1 coil 1310 , a 2-2 coil 1320 , a 2-3 coil 1330 and a 2-4 coil 1340 . The 2-1 coil 1310 may face the first magnet 310 and may interact with the first magnet 310 electromagnetically. The 2-2 coil 1320 may face the second magnet 320 and may interact with the second magnet 320 electromagnetically. The second-third coil 1330 may face the third magnet 330 and may interact with the third magnet 330 electromagnetically. The second-fourth coil 1340 may face the fourth magnet 340 and may interact with the first magnet 340 electromagnetically.

The sensor 1400 may be a Hall sensor. The sensor 1400 may detect the magnetic force of the magnet 300 . The sensor 1400 may detect the position of the housing 200 by detecting the magnetic force of the magnet 300 . Position information of the housing 200 sensed by the sensor 1400 may be transmitted to the controller of the camera module. The controller may drive the housing 200 according to the location information of the housing 200 sensed by the sensor 1400 . That is, position information of the housing 200 is fed back by the sensor 1400 so that a hand shake correction function can be performed.

The sensor 1400 may be mounted on the first substrate 1100 . The sensor 1400 may be disposed on the lower surface of the first substrate 1100 and may be accommodated in the base 900 . In this case, the sensor 1400 may be accommodated in the sensor accommodation part formed on the upper surface of the body 910 of the base 900 . In more detail, the sensor 1400 may be accommodated in a sensor accommodating part formed on the upper surface of the upper end U of the body 910 of the base 900.

The sensor 1400 may include a first sensor 1410 and a second sensor 1420 . The first sensor 1410 and the second sensor 1420 may be spaced apart from each other, mounted on the first substrate 1100, and accommodated in the base 900.

* In the lens driving device 10 of this embodiment, the first to fourth protrusions 121, 122, 131, and 132 of the cover 100 are the first to fourth grooves 920, 930, 940, 950 , the cover 100 may be fixed to the base 900 . As a result, in the lens driving device 10 of this embodiment, the cover 100 can be stably fixed to the base 900 .

Meanwhile, in the lens driving device 10 of this embodiment, the first to fourth protrusions 121, 122, 131, and 132 of the cover 100 and the first to fourth grooves 920, 930, and 940 of the base 900 , 950) may have various forms.

For example, any one of the first and second protrusions 121 and 122 and any one of the third and fourth protrusions 131 and 132 of the cover 100 may be omitted, and the first to second protrusions 121 and 122 of the base 900 corresponding thereto may be omitted. Two of the fourth grooves 920, 930, 940, and 950 may be omitted.

In addition, any one of the first to fourth protrusions 121, 122, 131, and 132 of the cover 100 may be omitted, and the first to fourth grooves 920 and 930 of the base 900 corresponding thereto may be omitted. 940, 950) may be omitted.

Furthermore, one or more protrusions may be located on either side of the third side wall 140 of the cover 100 and the fourth side wall 150 of the cover 100 . One or two or more protrusions may be located on both the third side wall 140 of the cover 100 and the fourth side wall 150 of the cover 100 .

Furthermore, three protrusions instead of two may be disposed on one sidewall of the cover 100, or a plurality of protrusions may be disposed on all sidewalls of the cover 100.

That is, it has various forms within the range that can be easily derived by a simple design change of a person skilled in the art.

In the above, the case where the lens driving device 10 of the present embodiment can perform both the auto focus function and the hand shake correction function has been described as an example. Hereinafter, the lens driving apparatus 10 of this embodiment in which the hand shake correction function is omitted will be described.

In this case, the wire 400, the substrate 1000, the second coil 1300, and the sensor 1400 for the hand shake correction function may be omitted. In this case, the first coil 600 and the lower elastic member 800 may be electrically connected, and the lower elastic member 800 and the main substrate of the camera module may be electrically connected.

To this end, the lower elastic member 800 may include a first lower elastic member and a second lower elastic member spaced apart from each other (a positive conductive line and a negative conductive line, a voltage terminal and a ground terminal). In this case, the first lower elastic member may include a first terminal electrically connected to the main substrate of the camera module, and the second lower elastic member may include a second terminal electrically connected to the main substrate of the camera module. can In addition, the first terminal and the second terminal are disposed together in the sixth groove 970 or the seventh groove 980 of the body 910 of the base 900, or are spaced apart from each other to form the sixth groove 970 and the seventh groove 970. Each may be disposed in the groove 980. Meanwhile, one end of the first coil 600 may be soldered to the first lower elastic member, and the other end of the first coil 600 may be soldered to the second lower elastic member.

When a driving current is applied from the main substrate, it may be transferred to the first coil 600 through the lower elastic member 800 . Due to the electromagnetic interaction between the first coil 600 and the magnet 300, an electromagnetic force (driving force) is generated in the first coil 600, and accordingly, the bobbin 500 has one side (one direction, upper side, or lower side) or moving to one side and the other side (both directions, upper side and lower side) in the optical axis direction, the auto focus function may be performed.

At least one of the housing 200, the upper elastic member 700, and the lower elastic member 800 may be omitted according to the optical structural and electrical design of the lens driving device 10 performing the auto focus function. For example, when the housing 200 is omitted, the magnet 300 is the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 of the cover 100. It is disposed on the inside and can be combined with the inner surfaces of the first side plate 120, the second side plate 130, the third side plate 140 and the fourth side plate 150 of the cover 100.

Furthermore, in the lens driving device 10 performing the auto focus function, the arrangement of the first coil 600 and the magnet 300 may be reversed. For example, the first coil 600 may be disposed on the housing 200 or the cover 100, and the magnet 300 may be disposed on the bobbin 500.

In the above, even though all the components constituting the embodiment of the present invention have been described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the components may be selectively combined with one or more to operate. In addition, terms such as "comprise", "comprise" or "having" described above mean that the corresponding component may be present unless otherwise stated, and thus exclude other components. It should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Claims (1)

cover;
a bobbin disposed within the cover;
a first coil disposed on the bobbin;
a magnet facing the first coil; and
Including a base disposed under the cover,
The cover includes a top plate, a first side plate extending downward from the top plate, and a first protrusion positioned on a lower surface of the first side plate, and the base includes a body on which the first side plate is disposed and the first protrusion is disposed. A lens driving device comprising a first groove to be.

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