Camera module

Abstract

To provide a camera module which can maximize heat radiation performance and minimize problems related to waterproofness.SOLUTION: An example relates to a camera module including: a first body including a lens; a second body coupled to the first body and including a hole; and a shield cover disposed in the second body. The shield cover is adhered to the second body, and a part of a side plate of the shield cover is exposed from the hole of the second body.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a camera module. [Background technology]

[0002] In recent years, ultra-miniature camera modules have been developed and are widely used in small electronic products such as smartphones, notebooks, game consoles, etc.

[0003] As automobiles become more widespread, miniature cameras are increasingly used in vehicles as well as in small electronic products. For example, they are equipped with black box cameras for vehicle protection or to collect objective information on traffic accidents, rearview cameras that allow drivers to monitor blind spots at the rear of the vehicle through a screen to ensure safety when reversing, and perimeter detection cameras that can monitor the area around the vehicle.

[0004] In recent years, as camera modules have become more and more pixelated, the heat dissipation performance of plastic bodies has become an issue. In particular, while conventional plastic bodies are cheaper than metal bodies in terms of unit price, they have poor heat dissipation properties, which can cause product degradation during use, especially in the case of high-pixel camera modules. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention aims to provide a camera module that can maximize heat dissipation performance and minimize waterproofing problems.

[0006] Also, the present invention aims to provide a camera module that minimizes assembly man-hours and reduces costs. [Means for solving the problem]

[0007] The camera module according to the present invention includes a first body including a lens, a second body coupled to the first body and including a hole, and a shield cover disposed within the second body, wherein the shield cover is adhered to the second body, and a portion of a side plate of the shield cover may be exposed through the hole in the second body.

[0008] The second body may include a bottom plate and a side plate extending from the bottom plate toward the first body, and the side plate of the second body may include a first region adhered to the shield cover and a second region not adhered to the shield cover or the first body, and the thickness of the second region of the second body may be greater than the thickness of the first region of the second body.

[0009] An inner surface of the second region of the side plate of the second body may protrude inward from an inner surface of the first region of the side plate of the second body.

[0010] The inner surfaces of the first region and the second region of the side plate of the second body may include a step structure.

[0011] The shield cover may include a bottom plate disposed on the bottom plate of the second body and a side plate disposed on the side plate of the first body, and the side plate of the shield cover may be disposed in the first region of the second body.

[0012] The sum of the thickness of the side plate of the shield cover and the thickness of the first region of the side plate of the second body may be greater than the thickness of the second region.

[0013] The inner surface of the side plate of the shield cover may protrude inward beyond the inner surface of the first region of the side plate of the second body.

[0014] The thickness of the side plate of the shield cover may be thinner than the thickness of the second region of the side plate of the second body.

[0015] A width between inner surfaces of the first regions of the second bodies facing each other may be greater than a width between inner surfaces of the second regions of the second bodies facing each other.

[0016] The second body may include a bottom plate and a side plate extending from the bottom plate, and the holes of the second body may include a first hole formed in the bottom plate of the second body and a second hole formed in the side plate of the second body, and the shape of the first hole may be different from the shape of the second hole.

[0017] The side plates of the second body may include a first side plate, a second side plate, a third side plate disposed opposite the first side plate, and a fourth side plate disposed opposite the second side plate, and a plurality of second holes may be formed in each of the first to fourth side plates, the second holes may be arranged in a direction perpendicular to the optical axis, and the length of the first side plate in a direction perpendicular to the optical axis direction may be 1.5 to 2.5 times the sum of the lengths of the plurality of second holes formed in the first side plate in the direction perpendicular to the optical axis.

[0018] The cross-sectional area of ​​the first side plate may be three to five times the total area of ​​the plurality of second holes formed in the first side plate.

[0019] The second body may include a bottom plate and a side plate extending from the bottom plate, and the shield cover may include a bottom plate disposed on the bottom plate of the second body and a side plate extending from the bottom plate of the shield cover and disposed on the side plate of the second body, at least a portion of the bottom plate of the shield cover may be exposed by the first hole of the second body, and at least a portion of the side plate of the shield cover may be exposed by the second hole of the second body.

[0020] The substrate assembly may include a first substrate coupled to the first body, a second substrate disposed below the first substrate, a spacer separating the first substrate from the second substrate, and a third substrate electrically connecting the first substrate to the second substrate.

[0021] The heat dissipation member may be disposed within the shield cover and between the shield cover and the spacer.

[0022] The shield cover may be insert-injected into the second body.

[0023] The second body may be made of a plastic material, and the shield cover may be made of a metal material.

[0024] The camera module of this embodiment includes a first body including a lens, a second body coupled to the first body, and a shield cover disposed within the second body and coupled to the second body, the second body including a bottom surface and an inner surface connected to the bottom surface and including a step, the shield cover including a bottom plate coupled to the bottom surface and a side plate coupled to the inner surface of the second body, and at least a portion of the upper surface of the side plate of the shield cover can be coupled to the step on the inner surface of the second body.

[0025] The shield cover and the second body may be coupled together in a waterproof manner.

[0026] The camera module according to this embodiment includes a first body including a lens, a second body coupled to the first body, and a shield cover disposed within the second body and coupled to the second body, the shield cover being waterproofly coupled to the second body, and the second body including a plurality of holes formed to release heat from the shield cover. [Effects of the Invention]

[0027] The present invention provides a plastic rear body structure that maximizes heat dissipation.

[0028] In addition, the metal shield cover and plastic rear body are assembled using insert injection, minimizing assembly time and reducing costs.

[0029] In addition, the shield cover is pre-treated to prevent interface separation between the shield cover and the rear body, thereby maximizing waterproof performance.

[0030] In addition, by disposing a shield cover on and contacting the inner surface of the rear body, it is possible to improve waterproofing and heat dissipation performance while miniaturizing the camera module. [Brief explanation of the drawings]

[0031] [Figure 1] 1 is a perspective view of a camera module according to an embodiment of the present invention; [Figure 2] 1 is an exploded perspective view of a camera module according to an embodiment of the present invention; [Figure 3] FIG. 1 is a front view of a camera module according to an embodiment of the present invention. [Figure 4] 4 is a cross-sectional view taken along the line AA in FIG. 3. [Figure 5] BB cross-sectional view of FIG. 3. [Figure 6] 1 is a perspective view of a camera module according to an embodiment of the present invention with a second body removed; [Figure 7] FIG. 1 is a side view of a camera module according to an embodiment of the present invention. [Figure 8] 1 is a perspective view of a first body of a camera module according to an embodiment of the present invention. [Figure 9] FIG. 2 is a perspective view of a second body of a camera module according to an embodiment of the present invention. [Figure 10] FIG. 2 is a perspective view of a shield cover of a camera module according to an embodiment of the present invention. [Figure 11]1 is a perspective view of a substrate assembly of a camera module according to an embodiment of the present invention; [Figure 12] FIG. 10 is a perspective view of the substrate assembly from another angle. [Figure 13] 1 is a perspective view of a spacer of a camera module according to an embodiment of the present invention; [Figure 14] 1 is a perspective view illustrating a coupling relationship between a first body and a board assembly of a camera module according to an embodiment of the present invention; [Figure 15] FIG. 2 is a rear view of a camera module according to an embodiment of the present invention. [Figure 16] 10A to 10C are diagrams illustrating a manufacturing process of a shield cover for a camera module according to an embodiment of the present invention. [Figure 17] 10A to 10C are diagrams illustrating a manufacturing process of a shield cover for a camera module according to an embodiment of the present invention. [Figure 18] 10A to 10C are diagrams illustrating a manufacturing process of a shield cover for a camera module according to an embodiment of the present invention. [Figure 19] 10 is a view illustrating a coupling surface between a shield cover and a second body of a camera module according to an embodiment of the present invention. [Figure 20] 10 is a diagram illustrating an additional heat dissipation member of a camera module according to an embodiment of the present invention; [Figure 21] 10 is a diagram illustrating an additional heat dissipation member of a camera module according to an embodiment of the present invention; [Figure 22] 10 is a diagram illustrating an additional heat dissipation member of a camera module according to an embodiment of the present invention; [Figure 23] FIG. 10 is a perspective view of a camera module according to another embodiment of the present invention. [Figure 24] FIG. 10 is an exploded perspective view of a camera module according to another embodiment of the present invention. [Figure 25] FIG. 10 is an exploded perspective view of a camera module according to another embodiment of the present invention. [Figure 26] FIG. 10 is a front view of a camera module according to another embodiment of the present invention. [Figure 27]27 is a cross-sectional view taken along the line AA in FIG. 26. [Figure 28] 27 is a cross-sectional view of FIG. 26 taken along line B-B. [Figure 29] FIG. 10 is a side view of a camera module according to another embodiment of the present invention. [Figure 30] FIG. 10 is a perspective view of a partial configuration of a camera module according to another embodiment of the present invention. [Figure 31] FIG. 31 is an exploded perspective view of FIG. 30. [Figure 32] 32(a) and 32(b) are perspective views of the second body part of a camera module according to another embodiment of the present invention, viewed from different angles k. [Figure 33] 1A and 1B are diagrams illustrating heat dissipation paths of a camera module according to one embodiment and another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0032] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0033] However, the technical concept of the present invention is not limited to the described embodiments and can be embodied in various different forms, and one or more of the components of the embodiments can be selectively combined or substituted within the scope of the technical concept of the present invention.

[0034] Furthermore, unless otherwise clearly and specifically defined, terms (including technical and scientific terms) used in the embodiments of the present invention shall be interpreted as meanings that are commonly understood by a person of ordinary skill in the art to which the present invention belongs, and commonly used terms such as predefined terms shall be interpreted in light of the contextual meaning of the relevant art.

[0035] Furthermore, the terms used in the embodiments of the present invention are intended to explain the embodiments and are not intended to limit the present invention.

[0036] In this specification, the singular can include the plural unless otherwise specified in the context, and when it is stated as "A and (and) at least one (or more) of B and C," it can include one or more of all possible combinations of A, B, and C.

[0037] Furthermore, when describing components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. are used only to distinguish the component from other components, and the terms do not limit the nature, order, or sequence of the components.

[0038] Furthermore, when a component is described as being 'coupled', 'coupled', or 'connected' to another component, this includes not only the case where the component is directly 'coupled', 'coupled', or 'connected' to the other component, but also the case where the component is 'coupled', 'coupled', or 'connected' by another component between the component and the other component.

[0039] Furthermore, when described as being formed or disposed "above" or "below" each component, "above" or "below" includes not only the case where two components are in direct contact with each other, but also the case where one or more additional components are formed or disposed between the two components. Furthermore, when described as "above" or "below," it can include not only the upper direction but also the lower direction based on one component.

[0040] Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

[0041] 1 is a perspective view of a camera module according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a camera module according to an embodiment of the present invention, FIG. 3 is a front view of a camera module according to an embodiment of the present invention, FIG. 4 is a cross-sectional view taken along line AA in FIG. 3, FIG. 5 is a cross-sectional view taken along line BB in FIG. 3, FIG. 6 is a perspective view of a camera module according to an embodiment of the present invention with a second body removed, FIG. 7 is a side view of a camera module according to an embodiment of the present invention, FIG. 8 is a perspective view of a first body of a camera module according to an embodiment of the present invention, FIG. 9 is a perspective view of a second body of a camera module according to an embodiment of the present invention, FIG. 10 is a perspective view of a shield cover of a camera module according to an embodiment of the present invention, and FIG. 11 is a cross-sectional view of a camera module according to an embodiment of the present invention. 12 is a perspective view of the board assembly of FIG. 11 from a different angle; FIG. 13 is a perspective view of a spacer of a camera module according to one embodiment of the present invention; FIG. 14 is a perspective view illustrating the connection relationship between the first body and the board assembly of a camera module according to one embodiment of the present invention; FIG. 15 is a rear view of a camera module according to one embodiment of the present invention; FIGS. 16 to 18 are diagrams illustrating a manufacturing process of a shield cover of a camera module according to one embodiment of the present invention; FIG. 19 is a diagram illustrating the connection surface between the shield cover and the second body of a camera module according to one embodiment of the present invention; and FIGS. 20 to 22 are diagrams illustrating additional heat dissipation members of a camera module according to one embodiment of the present invention.

[0042] The camera module 10 according to an embodiment of the present invention may be a camera module for a vehicle. The camera module 10 may be coupled to a vehicle. The camera module 10 may be used as one or more of a front camera, a side camera, a rear camera, and a black box of the vehicle. The camera module 10 may be disposed at the front of the vehicle. The camera module 10 may be disposed at the rear of the vehicle. The camera module 10 may be coupled to a windshield of the vehicle. The camera module 10 may be coupled to a front or rear windshield of the vehicle. The camera module 10 may be disposed on the side of the vehicle. The camera module 10 may capture an image of an object and output the image to a display (not shown).

[0043] The camera module 10 may include a first body 100. The first body 100 may be referred to as any one of a front body, an upper housing, and a first housing. The first body 100 may include a body part 110. The first body 100 may include a barrel part 120. The first body 100 may include a lens 130. The body part 110, the barrel part 120, and the lens 130 of the first body 100 may be integrally formed. Any two or more of the body part 110, the barrel part 120, and the lens 130 of the first body 100 may be integrally formed. Alternatively, the body part 110, the barrel part 120, and the lens 130 may be formed separately.

[0044] The body part 110 may be coupled to the barrel part 120. The first body part 110 may be integrally formed with the barrel part 120. The body part 110 may be made of a plastic material. The body part 110 may be disposed on a second body 200 (described later). The body part 110 may be coupled to the second body 200. A lower end of the body part 110 may be fixed to the second body 200. The body part 110 may be coupled to the second body 200 by any one of ultrasonic welding, laser welding, and heat welding. Alternatively, the body part 110 may be coupled to the second body 200 by an adhesive. The body part 110 may be coupled to a first substrate 410 of a substrate assembly 400 (described later).

[0045] The body part 110 may be formed in a rectangular shape with an open bottom. At this time, the corners of the body part 110 may be rounded. The body part 110 may include an upper plate 111 and side plates 112 extending from the upper plate 111. The upper plate 111 may be formed in a rectangular shape. The upper plate 111 may extend outward from the outer circumferential surface of the barrel part 120. The side plates 112 may extend downward from the outer ends of the upper plate 111. The side plates 112 may include a plurality of side plates 112. The side plates 112 may include four side plates. The side plates 112 may be formed in a rectangular plate shape. The side plates 112 may include a first side plate, a second side plate, a third side plate disposed opposite the first side plate, and a fourth side plate disposed opposite the second side plate. The side plates 112 may include first to fourth corners disposed between the first to fourth side plates, respectively. Each of the first to fourth corners may include at least a portion that is rounded.

[0046] The body part 110 may include a first protrusion 113. The first protrusion 113 may protrude from a lower surface of the upper plate 111. The first protrusion 113 may be disposed more inward than a second protrusion 114 of the body part 110, which will be described later. The first protrusion 113 may be coupled to the first substrate 410. The first protrusion 113 may be coupled to an outer edge of the first substrate 410. The first protrusion 113 may be formed in a shape corresponding to the outer edge of the first substrate 410. A lower end of the first protrusion 113 may be coupled to the first substrate 410. The lower end of the first protrusion 113 may be fixed to the first substrate 410 by an adhesive.

[0047] The first protrusion 113 may protrude further than the second protrusion 114. The length of the first protrusion 113 in the optical axis direction may be longer than the length of the second protrusion 114 in the optical axis direction. The maximum length of the first protrusion 113 in the optical axis direction may be longer than the length of the second protrusion 114 in the optical axis direction. The first protrusion 113 may be spaced apart from the second protrusion 114. The first protrusion 113 may be spaced apart from the second protrusion 114 in a direction perpendicular to the optical axis direction. At least a portion of the first protrusion 113 may face the second protrusion 114.

[0048] The first protrusion 113 may protrude further than the side plate 112. The length of the first protrusion 113 in the optical axis direction may be longer than the length of the side plate 112 in the optical axis direction. The first protrusion 113 may include a 1-1 protrusion facing the first side plate, a 1-2 protrusion facing the second side plate, a 1-3 protrusion facing the third side plate, and a 1-4 protrusion facing the fourth side plate. The 1-1 to 1-4 protrusions may be integrally formed. The first protrusion 113 may be spaced apart from the side plate 112. The first protrusion 113 may be spaced apart from the side plate 112 in a direction perpendicular to the optical axis direction.

[0049] The body portion 110 may include a second protrusion 114. The second protrusion 114 may protrude from the lower surface of the upper plate 111. The second protrusion 114 may be disposed more outer than the first protrusion 113. The second protrusion 114 may be coupled to the second body 200. At least a portion of the second protrusion 114 may be fusion-bonded to the second body 200. At least a portion of the second protrusion 114 may be bonded to the second body 200 by any of ultrasonic welding, laser welding, and heat welding. Alternatively, the second protrusion 114 may be fixed to the second body 200 by an adhesive. Alternatively, a portion of the second protrusion 114 may be fusion-bonded to the second body 200, and the remainder may be bonded by an adhesive.

[0050] The second protrusion 114 may not protrude below the first protrusion 113. The length of the second protrusion 114 in the optical axis direction may be shorter than the length of the first protrusion 113 in the optical axis direction. The maximum length of the second protrusion 114 in the optical axis direction may be shorter than the length of the first protrusion 113 in the optical axis direction. The second protrusion 114 may face at least a portion of the first protrusion 113. The second protrusion 113 may include a 2-1 protrusion facing the 1-1 protrusion, a 2-2 protrusion facing the 1-2 protrusion, a 2-3 protrusion facing the 1-3 protrusion, and a 2-4 protrusion facing the 1-4 protrusion. The 2-1 to 2-4 protrusions may be integrally formed. The second protrusion 114 may include four corner protrusions disposed between the 2-1 to 2-4 protrusions. The four corner protrusions of the second protrusion 114 may be formed at positions corresponding to the four corners of the body part 110. The second protrusion 114 may be spaced apart from the first protrusion 113. The second protrusion 114 may be spaced apart from the first protrusion 113 in a direction perpendicular to the optical axis direction.

[0051] The second protrusion 114 may include a first side facing the first protrusion 113 and a second side disposed opposite the first side and in contact with the second side plate 112. The length of the first side of the second protrusion 114 in the optical axis direction may be shorter than the length of the second side of the second protrusion 114 in the optical axis direction. The second protrusion 114 may include an inclined surface 114a. The inclined surface 114a may be inclined in a direction from the first side of the second protrusion 114 to the second side of the second protrusion 114. The length of the second protrusion 114 in the optical axis direction may increase from the first side of the second protrusion 114 to the second side of the second protrusion 114. The inclined surface 114a may be fusion-coupled to the second body 200. At least a portion of the inclined surface 114a may be fusion-coupled to the second body 200.

[0052] The second protrusion 114 may contact the side plate 112. A second side surface of the second protrusion 114 may contact the inner surface of the side plate 112. The second protrusion 114 may not be separated from the side plate 112. The second protrusion 114 may not be separated from the side plate 112 in a direction perpendicular to the optical axis direction. The second protrusion 114 may extend along the inner surface of the side plate 112.

[0053] The second protrusion 114 may not protrude below the side plate 112. The length of the second protrusion 114 in the optical axis direction may be shorter than the length of the side plate 112 in the optical axis direction. The maximum length of the second protrusion 114 in the optical axis direction may be shorter than the length of the side plate 112 in the optical axis direction. In this case, the maximum length of the second protrusion 114 in the optical axis direction may mean the length of the second side surface of the second protrusion 114 in the optical axis direction.

[0054] The second protrusion 114 may be disposed between the first protrusion 113 and the side plate 112. The second protrusion 114 may be disposed closer to the side plate 112 than the first protrusion 113. The second protrusion 114 may include a 2-1 protrusion disposed on the first side plate, a 2-2 protrusion disposed on the second side plate, a 2-3 protrusion disposed on the third side plate, and a 2-4 protrusion disposed on the fourth side plate. The second protrusion 114 may include corner protrusions disposed between the 2-1 to 2-4 protrusions. The corner protrusions of the second protrusion 114 may be disposed at positions corresponding to the first to fourth corners of the side plate 112. The body portion 110 may include a rib 115. The rib 115 may protrude from the lower surface of the upper plate 111. The rib 115 may be disposed between the first protrusion 113 and the second protrusion 114. The rib 115 may connect the first protrusion 113 and the second protrusion 114. One end of the rib 115 may be connected to the first protrusion 113, and the other end of the rib 115 may be connected to the second protrusion 114. The rib 115 may extend in a direction perpendicular to the extension direction of the first protrusion 113. The extension direction of the rib 115 may be a direction perpendicular to the extension direction of the second protrusion 114. In this case, the extension direction of the rib 115 may refer to the direction of the long side of the rib 115. The extension direction of the rib 115 may be parallel to a direction perpendicular to the optical axis direction.

[0055] The ribs 115 may include a plurality of ribs 115. The plurality of ribs 115 may be spaced apart from one another. Spaces may be formed between the plurality of ribs 115. This prevents heat generated during fusion bonding of the second protrusion 114 and the second body 200 from being transferred to the first protrusion 113 and the first substrate 410 coupled to the first protrusion 113. The ribs 115 may include a first rib disposed between the 1-1 protrusion and the 2-1 protrusion, a second rib disposed between the 1-2 protrusion and the 2-1 protrusion, a third rib disposed between the 1-3 protrusion and the 2-3 protrusion, and a fourth rib disposed between the 1-4 protrusion and the 2-4 protrusion. Each of the first to fourth ribs may include a plurality of ribs. The first rib may include three ribs spaced apart from one another. The second rib may include three ribs spaced apart from one another. The third rib may include three ribs spaced apart from one another. The fourth rib may include three ribs spaced apart from one another. The ribs 115 may reinforce the strength of the first protrusion 113. The ribs 115 may reinforce the strength of the second protrusion 114. The ribs 115 may minimize the transfer of heat generated during the fusion process between the second protrusion 114 and the second body 200 to the first protrusion 113 and the first substrate 410 coupled to the first protrusion 113.

[0056] The first body 100 may include a barrel portion 120. The barrel portion 120 may be a lens barrel. The barrel portion 120 may be made of a plastic material. The barrel portion 120 may be disposed in the body portion 110. The barrel portion 120 may extend from an upper surface of the body portion 110. The barrel portion 120 may be formed integrally with the body portion 110. Alternatively, the barrel portion 120 may be coupled to the body portion 110. In this case, the barrel portion 120 may be fixed to the body portion 110 by adhesive. The barrel portion 120 may accommodate the lens 130 therein. The barrel portion 120 may include a hole. The lens 130 may be disposed in the hole of the barrel portion 120. The inner circumferential surface of the hole of the barrel portion 120 may be formed to have a shape and size corresponding to the outer circumferential shape of the lens 130.

[0057] The first body 100 may include a lens 130. The lens 130 may be disposed in the barrel portion 120. The lens 130 may be coupled to the barrel portion 120. The lens 130 may be disposed in a hole in the barrel portion 120. The lens 130 may include a plurality of lenses 130. The lens 130 may be aligned with an image sensor 440 (described below). The optical axis of the lens 130 may be aligned with that of the image sensor 440. The optical axis of the lens 130 may coincide with the optical axis of the image sensor 440. The first body 100 may include an infrared filter (IR filter) disposed between the lens 130 and the image sensor 440.

[0058] The camera module 10 may include a second body 200. The second body 200 may be referred to as any one of a rear body, a lower housing, and a second housing. The second body 200 may be formed in a rectangular shape with an open top. The second body 200 may be formed of a plastic material. The second body 200 may be disposed below the first body 100. The second body 200 may be coupled to the first body 100. The second body 200 may be fusion-bonded to the first body 100. The second body 200 may be coupled to the first body 100 by any one of ultrasonic welding, laser welding, and heat welding. Here, ultrasonic welding refers to a process in which the first body 100 is pressurized and vibrated while the second body 200 is fixed, thereby fusing and integrating the fused portions of the second body 200 and the first body 100. The second body 200 may form an internal space when coupled to the first body 100.

[0059] The second body 200 may include a bottom plate 210. The bottom plate 210 may face the top plate 111 of the body part 110 of the first body 110. The bottom plate 210 may be spaced apart from the top plate 111 of the body part 110 of the first body 110 in the optical axis direction. The bottom plate 210 may be parallel to the top plate 111 of the body part 110 of the first body 110. The bottom plate 210 may be formed in a rectangular shape. In this case, at least some of the corners of the bottom plate 210 may be rounded.

[0060] The bottom plate 210 may include a first hole 211. The first hole 211 may be formed through the top and bottom surfaces of the bottom plate 210. The first hole 211 may expose a shield cover 300 (described later) to the outside. This allows heat generated in the internal spaces of the first body 100 and the second body 200 to be released to the outside. This allows the camera module 10 to perform a heat dissipation function. The first hole 211 may be spaced apart from a third hole 212 (described later).

[0061] The first hole 211 may include a plurality of first holes 211. The plurality of first holes 211 may have different shapes. The cross-sectional areas of the plurality of first holes 211 may be different from one another. The sizes of the plurality of first holes 211 may be different from one another. The plurality of first holes 211 may be arranged to avoid the holes 231 of the connector outlet 230. The plurality of first holes 211 may be formed with different shapes and sizes from one another to avoid the holes 231 of the connector outlet 230. This may maximize the area of ​​the shield cover 300 exposed to the outside through the bottom plate 210 of the second body 200, excluding the holes 231 of the connector outlet 230. At this time, the holes 231 of the connector outlet 230 are arranged at an optimal position that minimizes the size of the camera module 10. In this case, the plurality of first holes 211 may be formed with a size and shape that maximizes the exposed area of ​​the shield cover 300 while avoiding the holes 231 of the connector outlet 230. The plurality of first holes 211 may include four first holes 211 spaced apart from one another. The first holes 211 may include a 2-1 hole 211-1, a 2-2 hole 211-2, a 2-3 hole 211-3, and a 2-4 hole 211-4 spaced apart in a circumferential direction around a third hole 212 (described later). The 2-1 hole 211-1, the 2-2 hole 211-2, the 2-3 hole 211-3, and the 2-4 hole 211-4 may have different shapes. The cross section of the 2-1 hole 211-1 may be at least partially curved. The cross section of the 2-1 hole 211-1 may be smaller than the cross sections of the 2-2 through 2-4 holes 211-2, 211-3, and 211-4. The cross section of the 2-2 hole 211-2 may be at least partially curved. The cross-sectional area of ​​the 2-2 hole 211-2 may be larger than the cross-sectional area of ​​the 2-1 hole 211-1. The cross-sectional area of ​​the 2-2 hole 211-2 may be smaller than the cross-sectional areas of the 2-3 hole 211-3 and the 2-4 hole 211-4. The cross section of the 2-3 hole 211-3 may be formed at least partially by a curve.The cross-sectional area of ​​the 2-3 hole 211-3 may be larger than the cross-sectional areas of the 2-1 hole 211-1, the 2-2 hole 211-2, and the 2-4 hole 211-4. The cross-section of the 2-4 hole 211-4 may be at least partially curved. The cross-sectional area of ​​the 2-4 hole 211-4 may be larger than the cross-sectional areas of the 2-1 hole 211-1 and the 2-2 hole 211-2. The cross-sectional area of ​​the 2-4 hole 211-4 may be smaller than the cross-sectional area of ​​the 2-3 hole 211-3. The 2-1 hole 211-1 and the 2-3 hole 211-3 may be disposed on opposite sides of the 3rd hole 212. The 2-2 hole 211-2 and the 2-4 hole 211-4 may be disposed on opposite sides of the 3rd hole 212.

[0062] The bottom plate 210 may include a third hole 212. The third hole 212 may be spaced apart from the first hole 211. The third hole 212 may be formed in a circular shape. A connector outlet 230 (described later) may be disposed in the third hole 212. The connector outlet 230 may pass through the third hole 212. A connector 460 (described later) may pass through the second hole 212. A bottom plate 310 of a shield cover 300 (described later) may be disposed on the bottom plate 210. The bottom plate 310 of the shield cover 300 may be in surface contact with the bottom plate 210. The bottom plate 310 of the shield cover 300 may be coupled to the bottom plate 210 by insert injection.

[0063] The second body 200 may include a side plate 220. The side plate 220 may extend from the bottom plate 210. The side plate 220 may extend from an outer end of the bottom plate 210. The shield cover 300 may be disposed on the side plate 220. The shield cover 300 may be in surface contact with an inner surface of the side plate 220. The side plate 320 of the shield cover 300 may be coupled to the side plate 220 by insert injection molding. An upper end of the side plate 220 may be coupled to the first body 100. An outer surface of the side plate 200 may be disposed flush with an outer surface of the side plate 112 of the first body 100. The side plate 220 may include a first region 224 in which the second hole 223 is formed and a second region 225 extending from the first region 224 and in which the second hole 223 is not formed. The first region 224 of the side plate 220 may be adhered to the shield cover 300. The second region 225 of the side plate 220 may not be bonded to the shield cover 300 and the first body 100. The inner surface of the side plate 220 may include a step structure formed by the first region 224 and the second region 225. The inner surface of the first region 224 of the side plate 220 may be disposed outward from the inner surface of the second region 225 of the side plate 220. The inner surface of the second region 225 of the side plate 220 may protrude inward from the inner surface of the first region 224 of the side plate 220. A thickness (t2) of the second region 225 of the second body 200 may be greater than a thickness (t1) of the first region 224 of the second body 200. A width (d1) between the inner surfaces of the first regions 224 of the second body 200 facing each other may be greater than a width (d2) between the inner surfaces of the second regions 225 of the second body 200 facing each other.

[0064] The side plate 320 of the shield cover 300 may be disposed in a first region of the side plate 200. The side plate 320 of the shield cover 300 may be bonded to the first region of the side plate 200. The side plate 320 of the shield cover 300 may be bonded to the first region of the side plate 200 in direct contact therewith. The coating layer (C) of the shield cover 300 may be bonded to the first region of the side plate 200. A thickness (t3) of the side plate 320 of the shield cover 300 in a direction perpendicular to the optical axis direction may be thinner than a thickness (t2) of the second region of the side plate 220 in a corresponding direction. The side plate 220 may include a first side plate 220a, a second side plate 220b, a third side plate 220c disposed opposite the first side plate 220a, and a fourth side plate 220d disposed opposite the second side plate 220b. The side plate 220 may include a first corner 220e disposed between the first side plate 220a and the second side plate 220b, a second corner 220f disposed between the second side plate 220b and the third side plate 220c, a third corner 220g disposed between the third side plate 220c and the fourth side plate 220d, and a fourth corner 220h disposed between the fourth side plate 220d and the first side plate 220a. The first to fourth corners 220e, 220f, 220g, and 220h of the side plate 220 may have a rounded shape.

[0065] The side plate 220 may include a third protrusion 221. The third protrusion 221 may protrude upward from an upper end of the side plate 220. The third protrusion 221 may protrude upward from an upper surface 222 of the side plate 220. The third protrusion 221 may abut against the second protrusion 114 of the first body 100. The third protrusion 221 may be disposed on the inclined surface 114a of the second protrusion 114 of the first body 100. The third protrusion 221 may be coupled to at least a portion of the second protrusion 114 of the first body 100. The third protrusion 221 may be fusion-bonded to at least a portion of the second protrusion 114 of the first body 100. In this case, the fusion-bonding may refer to any one of ultrasonic welding, laser welding, and thermal welding. The third protrusion 221 may protrude from a portion of the upper surface 222 of the side plate 220. The outer surface of the third protrusion 221 can contact the inner surface of the side plate 112 of the first body 100. A portion of the third protrusion 221 can contact the inclined surface 114a of the second protrusion 114 of the first body 100 by fusion, and the remainder of the third protrusion 221 can contact the side plate 112 of the first body 100.

[0066] The side plate 220 may include an upper surface 222. The upper surface 222 may refer to a surface facing the body part 110 of the first body 100. The upper surface 222 may include a first region from which the third protrusion 221 protrudes and a second region from which the third protrusion 221 does not protrude. The second region may be disposed outward from the first region. A lower end of the side plate 112 of the first body 100 may be disposed in the second region of the upper surface 222. The second region of the upper surface 222 may be coupled to the lower end of the side plate 112 of the first body 100. The second region of the upper surface 222 and the third protrusion 221 may form a stepped structure. The second region of the upper surface 222 and the third protrusion 221 may be disposed with a step.

[0067] The side plate 220 may include a second hole 223. The second hole 223 may be formed in the side plate 220. The second hole 223 may be formed through the outer surface and the inner surface of the side plate 220. The shield cover 300 may be exposed to the outside through the second hole 223. The second hole 223 may expose at least a portion of the side plate 320 of the shield cover 300 to the outside.

[0068] The second holes 223 may include a plurality of second holes 223. The second holes 223 may include a 2-1 hole formed in the first side plate 220a, a 2-2 hole formed in the second side plate 220b, a 2-3 hole formed in the third side plate 220c, and a 2-4 hole formed in the fourth side plate 220d. The 2-1 hole may be formed between the first corner 220e and the fourth corner 220h. The 2-1 hole may be spaced apart from the first corner 220e and the fourth corner 220h. The 2-1 holes may include a plurality of 2-1 holes spaced apart from each other. The 2-1 holes may include five 2-1 holes spaced apart from each other. The 2-2 hole may be disposed between the first corner 220e and the second corner 220f. The 2-2 hole may be spaced apart from the first corner 220e and the second corner 220f. The 2-2 holes may include a plurality of 2-2 holes spaced apart from one another. The 2-2 holes may include five 2-2 holes spaced apart from one another. The 2-3 holes may be disposed between the second corner 220f and the third corner 220g. The 2-3 holes may be spaced apart from the second corner 220f and the third corner 220g. The 2-3 holes may include a plurality of 2-3 holes spaced apart from one another. The 2-3 holes may include five 2-3 holes spaced apart from one another. The 2-4 holes may be disposed between the third corner 220g and the fourth corner 220h. The 2-4 holes may be spaced apart from the third corner 220g and the fourth corner 220h. The 2-4 holes may include a plurality of 2-4 holes spaced apart from one another. The 2-4 holes may include five 2-4 holes spaced apart from one another. The plurality of second holes 223 may be formed to have the same shape. However, the present invention is not limited thereto and the second holes 223 may be formed and arranged in various shapes to maximize the external exposure of the shield cover 300. The second holes 223 may be formed in a shape different from that of the first holes 211. The cross-sectional area of ​​the second holes 223 may be different from that of the first holes 211.

[0069] The second holes 223 may be disposed in each of the first to fourth side plates (220a, 220b, 220c, and 220d) of the second body 200. The second holes 223 may include five 2-1 holes disposed in the first side plate 220a. The length of the first side plate 220a in a direction perpendicular to the optical axis direction may be 1.5 to 2.5 times, for example, twice, the total length of the five 2-1 holes in the corresponding direction. The length of the first side plate 220a in the optical axis direction may be twice the length of the 2-1 holes in the corresponding direction. The cross-sectional area of ​​the first side plate 220a may be 3 to 5 times, for example, four times, the total cross-sectional area of ​​the five 2-1 holes. In this case, the cross-sectional area may refer to a cross-sectional area calculated assuming that the first side plate 220a is a square plate without the 2-1 holes. That is, the cross-sectional area of ​​the first side plate 220a may be calculated excluding the second holes 223. However, without being limited thereto, the second holes 223 may be formed in various sizes and numbers in order to maximize the exposed area of ​​the shield cover 300.

[0070] The second body 200 may include a connector lead-out portion 230. The connector lead-out portion 230 may be coupled to the bottom plate 210. The connector lead-out portion 230 may be disposed in the third hole 212 of the bottom plate 210. The connector lead-out portion 230 may pass through the third hole 212 of the bottom plate 210. The connector lead-out portion 230 may have a connector 460 disposed therein. The connector lead-out portion 230 may be made of a plastic material. The connector lead-out portion 230 may include a first portion protruding above the bottom plate 210. The connector lead-out portion 230 may include a second portion protruding below the bottom plate 210. The first and second portions of the connector lead-out portion 230 may be integrally formed. The length of the first portion of the connector lead-out portion 230 in the optical axis direction may be smaller than the length of the second portion of the connector lead-out portion 230 in the optical axis direction. The length of the first portion in the optical axis direction may correspond to the thickness of the bottom plate 310 of the shield cover 300. An upper surface of the first portion may be disposed on the same plane as an upper surface of the bottom plate 310 of the shield cover 300. The connector outlet 230 may include a hole 231. The connector 460 may be disposed in the hole 231. The hole 231 may accommodate at least a portion of the connector 460. In this way, the connector outlet 230 may fix the connector 460.

[0071] The camera module 10 may include a shielding cover 300. The shielding cover 300 may be made of a metal material. The shielding cover 300 may include a bottom plate 310, side plates 320 extending from the bottom plate 310, and corners 330 disposed on the side plates 320. The bottom plate 310, the side plates 320, and the corners 330 may be integrally formed. The bottom plate 310 may contact the bottom plate 210 of the second body 200.

[0072] The bottom plate 310 may include a hole 311. The hole 311 may be formed in a shape corresponding to the third hole 212 of the second body 200. The hole 311 may be formed in a size corresponding to the third hole 212 of the second body 200. At least a portion of the connector lead-out portion 230 may be disposed in the hole 311. The connector lead-out portion 230 may pass through the hole 311. An inner circumferential surface of the hole 311 may be in contact with at least a portion of an outer circumferential surface of the connector lead-out portion 230. At least a portion of the connector 460 may be disposed in the hole 311. The connector 460 may pass through the hole 311.

[0073] The side plate 320 may include a first side plate 321, a second side plate 322, a third side plate 323 disposed opposite the first side plate 321, and a fourth side plate 324 disposed opposite the second side plate 322. The outer surface of the first side plate 321 may contact the inner surface of the first side plate 220a of the second body 200. The outer surface of the second side plate 322 may contact the inner surface of the second side plate 220b of the second body 200. The outer surface of the third side plate 323 may contact the inner surface of the third side plate 220c of the second body 200. The outer surface of the fourth side plate 324 may contact the inner surface of the fourth side plate 220d of the second body 200.

[0074] The side plate 320 may include a first corner 331 disposed on the first side plate 321 and the second side plate 322, a second corner 332 disposed between the second side plate 322 and the third side plate 323, a third corner 333 disposed between the third side plate 323 and the fourth side plate 324, and a fourth corner 334 disposed between the fourth side plate 324 and the first side plate 321. The outer circumferential surface of the first corner 331 may contact the inner circumferential surface of the first corner 220e of the second body 200. The outer circumferential surface of the second corner 332 may contact the inner circumferential surface of the second corner 220f of the second body 200. The outer circumferential surface of the third corner 333 may contact the inner circumferential surface of the third corner 220g of the second body 200. The outer circumferential surface of the fourth corner 334 may contact the inner circumferential surface of the fourth corner 220h of the second body 200. The shield cover 300 may be grounded to the second substrate 420. The outer surfaces of the shield cover 300 and the connector 460 may be grounded.

[0075] The shield cover 300 can be waterproofly coupled to the second body 200. Depending on the application, the waterproof and dustproof rating can meet IP52 or higher, and when placed outside the vehicle, it can meet IP69K rating.

[0076] 16 to 18, the shield cover 300 may be integrally formed by molding metal. That is, the bottom plate 310, side plates 320, and corners 330 of the shield cover 300 may be integrally formed by molding metal. More specifically, the shield cover 300 may be fixed in a rectangular solid mold 500. At this time, the shield cover 300 may be pressed toward the mold 500 to form the shape of the shield cover 300. This eliminates the problem of gaps between the side plates that occurs when a shield cover is formed by bending a plate material to form the side plates and then joining the formed side plates. That is, because the shield cover 300 of the present invention is integrally formed with the side plates 320 and the corners 330, there may be no gap between the multiple side plates 320 or between the side plates 320 and the corners 330.

[0077] The shield cover 300 may be subjected to a metal surface treatment. The shield cover 300 may be pretreated. A bonding surface of the shield cover 300 to be bonded to the second body 200 may be metal surface treated. A bonding surface of the shield cover 300 to be bonded to the second body 200 may be pretreated. The shield cover 300 may undergo a metal surface pretreatment process before being insert-molded into the second body 200. The shield cover 300 may be formed of aluminum. At least a portion of the shield cover 300 may be formed of aluminum. The shield cover 300 may be formed of a metal material with high thermal conductivity. The pretreatment or metal surface treatment may refer to a process of removing oil adhering to a metal surface and forming a film layer or a surface treatment layer. Here, the surface treatment layer may refer to a coating layer (C) or a generic concept including a film layer. The surface treatment layer may include a coating layer (C). The surface treatment layer may include a film layer. When the mating surface of the shield cover 300 with the second body 200 is immersed in a special solution for a certain period of time, nano-sized pores (S) can be formed on the mating surface of the shield cover 300 with the second body 200. As a result, heat generated during the process of insert injection of the shield cover 300 and the second body 200 melts portions of the plastic second body 200 and flows into the pores (S) of the shield cover 300. This increases the joining strength, bonding strength, and adhesion between the shield cover 300 and the second body 200. In addition, when the mating surface of the shield cover 300 with the second body 200 is immersed in the special solution for a certain period of time, a coating layer (C) or film layer can be formed on the mating surface of the shield cover 300 with the second body 200. This prevents interfacial separation between the mating surfaces of the shield cover 300 and the second body 200. Furthermore, waterproofing between the shield cover 300 and the second body 200 is possible without the need for a separate waterproofing or sealing member.

[0078] The shield cover 300 may be fixed to the second body 200 by insert molding. The shield cover 300 may be fixed to the second body 200 by insert molding. Insert injection or insert molding refers to a molding method that integrates a metal member and a plastic member. Heat generated during the insert injection process melts a portion of the second body 200 and allows the melted portion to flow into the pores (S) created during the pre-treatment process of the shield cover 300.

[0079] The camera module 10 may include a board assembly 400. The board assembly 400 may be disposed within the second body 200. The board assembly 400 may be disposed in an internal space formed by combining the first body 100 and the second body 300. The board assembly 400 may be disposed within the shield cover 300.

[0080] The substrate assembly 400 may include a first substrate 410. The first substrate 410 may include a printed circuit board. The first substrate 410 may include a rigid printed circuit board. An image sensor 440 may be disposed on the first substrate 410. In this case, the first substrate 410 may be referred to as a sensor substrate. The first substrate 410 may include a first surface facing the body part 100 of the first body 100 and a second surface disposed on the opposite side of the first surface. The image sensor 440 may be disposed on the first surface of the first substrate 410. The first substrate 410 may be coupled to the first body 100. The first body 100 may be coupled to the first protrusion 113 of the first substrate 410. An outer edge of the first surface of the first substrate 410 may be coupled to the first protrusion 113 of the first body 100.

[0081] The substrate assembly 400 may include a second substrate 420. The second substrate 420 may include a printed circuit board. The second substrate 420 may include a rigid printed circuit board. The second substrate 420 may be disposed below the first substrate 410. The second substrate 420 may be spaced apart from the first substrate 410. The second substrate 420 may be spaced apart from the first substrate 410 in the optical axis direction. The second substrate 420 may supply power to the first substrate 410. The second substrate 420 may be disposed parallel to the first substrate 410. The second substrate 420 may be electrically connected to a connector 460. The second substrate 420 may include a first surface facing the first substrate 410 and a second surface disposed opposite the second surface. The connector 460 may be disposed on the second surface of the second substrate 420.

[0082] The substrate assembly 400 may include a third substrate 430. The third substrate 430 may include a flexible printed circuit board (FPCB). The third substrate 430 may electrically connect the first substrate 410 and the second substrate 420. One end of the third substrate 430 may be connected to the first substrate 410, and the other end of the third substrate 430 may be connected to the second substrate 420. The third substrate 430 may have elasticity.

[0083] The substrate assembly 400 may include a spacer 450. The spacer 450 may be called a shield can. The spacer 450 may be called an electromagnetic wave shielding member. The spacer 450 may block electromagnetic interference (EMI) or electromagnetic waves. The spacer 450 may serve to space a plurality of substrates apart. The spacer 450 may be made of a metal material.

[0084] The spacer 450 may be referred to as a first shield can, and in this case, the shield cover 300 may be referred to as a second shield can. The spacer 450 may be disposed below the first substrate 410. The spacer 450 may be disposed on the second substrate 420. The spacer 450 may be disposed between the first substrate 410 and the second substrate 420. The spacer 450 may space the first substrate 410 and the second substrate 420 apart.

[0085] The spacer 450 may include a main body portion 451. The main body portion 451 may include a plurality of main bodies 451. The main body portion 451 may include a first main body portion 451a, a second main body portion 451b, a third main body portion 451c disposed on the opposite side of the first main body portion 451a, and a fourth main body portion 451d disposed on the opposite side of the second main body portion 451b. The first to fourth main body portions (451a, 451b, 451c, 451d) may be spaced apart from each other except for a connecting portion 456, which will be described later.

[0086] The body portion 451 may include a first protrusion 452 formed on an upper end of the body portion 451. The first protrusion 452 may include two protrusions 452 spaced apart from each other. The first protrusions 452 may be disposed on a second surface of the first substrate 410. The body portion 451 may include a groove 453 formed between the first protrusions 452. The width of the groove 453 formed between the two first protrusions 452 of the first body portion 451a may be larger than the width of the groove 453 formed between the two first protrusions 452 of the second to fourth body portions 451b, 451c, and 451d. Thus, the third substrate 430 may pass through the groove 453 formed in the first body portion 451a to electrically connect the first substrate 410 and the second substrate 420.

[0087] The spacer 450 may include a first coupling portion 454. The first coupling portion 454 may be formed at a lower end of each of the second body portion 451b and the fourth body portion 451d. The first coupling portion 454 may protrude downward from at least a portion of the lower end of each of the second body portion 451b and the fourth body portion 451d.

[0088] The first coupling portion 454 may include a first hole 454a. The first hole 454a of the first coupling portion 454 formed in the second body portion 451b may overlap the first hole 454a of the first coupling portion 454 formed in the fourth body portion 451d in a direction perpendicular to the optical axis direction. At least a portion of a second protrusion 454c (described later) may be disposed in the first hole 454a. The first hole 454a may be formed to prevent interference with the second protrusion 454c.

[0089] The first coupling portion 454 may include a second hole 454b. The second hole 454b of the first coupling portion 454 formed in the second body portion 451b may overlap the second hole 454b of the first coupling portion 454 formed in the fourth body portion 451d in a direction perpendicular to the optical axis direction. The second hole 454b may be formed to form a third protrusion 454d, which will be described later. The second hole 454b may be spaced apart from the first hole 454a.

[0090] The first coupling portion 454 may include a second protrusion 454c. The second protrusion 454c of the first coupling portion 454 formed on the second body portion 451b may overlap the second protrusion 454c of the first coupling portion 454 formed on the fourth body portion 451d in a direction perpendicular to the optical axis direction. The second protrusion 454c may be formed by bending a portion of the lower end of the first coupling portion 454. The second protrusion 454c may include a bent portion for supporting the second surface of the second substrate 420. An end of the bent portion of the second protrusion 454c may be disposed in the first hole 454a. The second substrate 420 may be fixed to the spacer 450 via the second protrusion 454c.

[0091] The first coupling portion 454 may include a third protrusion 454d. The third protrusion 454d may be formed by cutting out a portion of the first coupling portion 454 and applying outward pressure to the cut-out region. In this case, the cut-out region may be the second hole 454b. The third protrusion 454d of the first coupling portion 454 formed on the second body portion 451b may overlap the third protrusion 454d of the first coupling portion 454 formed on the fourth body portion 451d in a direction perpendicular to the optical axis direction. The third protrusion 454d may include a first region extending at an angle relative to the first coupling portion 454 and a second region extending from the first region parallel to the first coupling portion 454.

[0092] The spacer 450 may include a second coupling portion 455. The second coupling portion 455 may extend downward from a lower end of the third body portion 451c. The second coupling portion 455 may extend downward from a partial region of the lower end of the third body portion 451c. The second coupling portion 455 may include a third hole 455a. A portion of the second substrate 420 may be disposed in the third hole 455a. A portion of the second substrate 420 may be fitted into the third hole 455a to fix the second substrate 420.

[0093] The spacer 450 may include a connecting portion 456. The connecting portion 456 may connect the first to fourth body portions 451a, 451b, 451c, and 451d. The connecting portion 456 may include a curved surface. The connecting portion 456 may be disposed on a first surface of the second substrate 420. The connecting portion 456 may press the second substrate 420 downward, and the second protrusion 454c may press the second substrate 420 upward to fix the second substrate 420.

[0094] The spacer 450 may be disposed within the shield cover 300. The shield member 450 may be spaced apart from the shield cover 300. The shield member 450 may be spaced apart from the bottom plate 310 of the shield cover 300 in the optical axis direction. The shield member 450 may be spaced apart from the side plate 320 of the shield cover 300 in a direction perpendicular to the optical axis direction. The spacer 450 may be made of a metal material. The thickness of the spacer 450 may be thinner than the thickness of the side plate 320 of the shield cover 300. The spacer 450 may face the side plate 320 of the shield cover 300.

[0095] The board assembly 400 may include a connector 460. The connector 460 may be disposed on the second surface of the second board 420. The connector 460 may be fixed to the second surface of the second board 420. The connector 460 may be electrically connected to the second board 420. A portion of the connector 460 may be disposed within the shield cover 300, and the remainder may be disposed within the connector outlet 230 of the second body 200. The connector 460 may pass through a hole 311 of the shield cover 300. The connector 460 may pass through a third hole 212 of the second body 200.

[0096] 20 to 22, the camera module 10 may include a heat dissipation member 600. The heat dissipation member 600 may be called any one of a heat dissipation pad, a heat pad, and a thermal pad. The heat dissipation member 600 may be made of a thermally conductive material.

[0097] The heat dissipation member 600 may be disposed within the shield cover 300. The heat dissipation member 600 may be disposed on the bottom plate 310 of the shield cover 300. The heat dissipation member 600 may be disposed between the bottom plate 310 of the shield cover 300 and the second substrate 420. One end of the heat dissipation member 600 may contact the second surface of the substrate 420, and the other end of the heat dissipation member 600 may contact the bottom plate 310 of the shield cover 300. Thus, heat generated in the substrate assembly 400 may be transferred to the shield cover 300, maximizing heat dissipation performance.

[0098] The heat dissipation member 600 may include a first side facing the first side 220a of the second body 200, a second side facing the second side 220b of the second body 200, a third side facing the third side 220c of the second body 200, and a fourth side facing the fourth side 220d of the second body 200.

[0099] The heat dissipation member 600 may include a groove 610. The groove 610 may be recessed from a second side surface of the heat dissipation member 600. The groove 610 may be recessed from a third side surface of the heat dissipation member 600. The groove 600 may be formed to avoid the hole 311 in the bottom plate 310 of the shield cover 300. The groove 600 may be formed to avoid the connector 460 of the board assembly 400. The groove 610 may include at least a curved surface. The groove 610 may be formed to be round.

[0100] Hereinafter, a camera module 20 according to another embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

[0101] Figure 23 is an oblique view of a camera module according to another embodiment of the present invention, Figures 24 and 25 are exploded oblique views of a camera module according to another embodiment of the present invention, Figure 26 is a front view of a camera module according to another embodiment of the present invention, Figure 27 is a cross-sectional view taken along line AA of Figure 26, Figure 28 is a cross-sectional view taken along line BB of Figure 26, Figure 29 is a side view of a camera module according to another embodiment of the present invention, Figure 30 is a perspective view of a partial configuration of a camera module according to another embodiment of the present invention, Figure 31 is an exploded oblique view of Figure 30, and Figures 32(a) and (b) are oblique views of the second body part of a camera module according to another embodiment of the present invention viewed from different angles.

[0102] The camera module 20 according to another embodiment of the present invention may be interpreted as having the same configuration as the camera module 10 according to the first embodiment of the present invention, except for the second body 200. The same components in the camera module 20 according to another embodiment as those in the camera module 10 according to the first embodiment may be denoted by the same reference numerals.

[0103] The camera module 20 may include a second body 200. The second body 200 may be called any one of a rear body, a lower housing, and a second housing. The second body 200 may be formed in a rectangular shape with openings at the top and bottom. The second body 200 may be formed of a plastic material. The second body 200 may be disposed below the first body 100. The second body 200 may be disposed on the shield cover 300. The second body 200 may be coupled to the first body 100. The second body 200 may be coupled to the shield cover 300. The second body 200 may be fusion-bonded to the first body 100. The second body 200 may be coupled to the first body 100 by any one of ultrasonic welding, laser welding, and heat welding. At this time, ultrasonic welding may refer to a process in which the first body 100 is pressurized and vibrated while the second body 200 is fixed, so that the welding portions of the second body 200 and the first body 100 are fused and integrated.

[0104] The second body 200 may include a second body portion 240. The second body portion 240 may be coupled to the first body portion 110 of the first body 100. An upper portion of the second body portion 240 may be coupled to the first body portion 110. The second body portion 240 may be fusion-coupled to the first body portion 110. The second body portion 240 may be coupled to the first body portion 110 by any of ultrasonic fusion, laser fusion, and heat fusion. The second body portion 200 may be made of a plastic material.

[0105] The second body part 240 may include an upper surface 241. The upper surface 241 may be a surface facing the first body part 110. The upper surface 241 may include a first region from which a protrusion 242 (described later) protrudes and a second region from which the protrusion 242 does not protrude. The side plate 112 of the first body part 110 may be disposed in the second region of the upper surface 241. The second region of the upper surface 241 may be coupled to the side plate 112 of the first body part 110.

[0106] The second body portion 240 may include a protrusion 242. The protrusion 242 may protrude from the upper surface 241. The protrusion 242 may protrude upward from a first region of the upper surface 241. The protrusion 242 may be disposed on the second protrusion 114 of the first body portion 110. At least a portion of the protrusion 242 may contact the inclined surface 114a of the second protrusion 114 of the first body portion 110. The protrusion 242 may be fusion-bonded to the second protrusion 114 of the first body portion 110. The protrusion 242 may be fusion-bonded to the second protrusion 114 of the first body portion 110 by any one of ultrasonic fusion, laser fusion, and heat fusion.

[0107] The second body part 240 may include side plates. The side plates may include a first side plate 244, a second side plate 245, a third side plate 246 disposed on the opposite side of the first side plate 244, and a fourth side plate 247 disposed on the opposite side of the second side plate 245. The first to fourth side plates (244, 245, 246, 247) may be coupled to the side plate 112 of the first body part 110. In this case, the side plate 112 of the first body part 110 and the side plates (244, 245, 246, 247) of the second body part 240 may be arranged on the same plane. Grooves 248 may be formed on the inner surfaces of the side plates (244, 245, 246, 247) of the first body part 240. The grooves 248 may be continuously formed on the inner surfaces of the first to fourth side plates (244, 245, 246, 247).

[0108] The second body part 240 may include a groove 248. The groove 248 may be recessed from a portion of the lower surface 243 of the second body part 240. The groove 248 may be recessed from a portion of the inner surface of the side plate of the second body part 240.

[0109] The inner surface of the second body portion 240 may include a first surface, a second surface that protrudes inward from the first surface, and a third surface that connects the first surface and the second surface and is perpendicular to the first surface and the second surface.

[0110] The groove 248 may be formed on an inner surface of the side plate of the second body part 240. The groove 248 may include a first surface and a third surface of the second body part 240. The groove 248 may be coupled to the shield cover 300. The groove 248 may be fixed to the shield cover 300. The third surface of the groove 248 may contact an upper surface of the side plate 320 of the shield cover 300. The first surface of the groove 248 may contact an outer surface of the side plate 320 of the shield cover 300. In this case, the shield cover 300 may be metal-surface-treated on a portion that contacts the groove 248. This may prevent interfacial separation between the shield cover 300 and the second body part 240. This may maximize the bonding strength and adhesion between the shield cover 300 and the second body part 240. Furthermore, this may minimize the gap between the shield cover 300 and the second body part 240, thereby providing waterproofing.

[0111] The second body part 240 may be coupled to the upper part of the side plate 320 of the shield cover 300 by insert injection. The groove 248 of the second body part 240 and the upper part of the side plate 320 of the shield cover 300 may be insert injection. Hereinafter, the insert injection between the second body part 240 and the shield cover 300 may be referred to as a first insert injection.

[0112] The second body 200 may include a connector lead-out portion 230. The connector lead-out portion 230 may be coupled to the bottom plate 310 of the shield cover 300. The connector lead-out portion 230 may be disposed in a hole 311 in the bottom plate 310 of the shield cover 300. The connector lead-out portion 230 may pass through the hole 311 in the bottom plate 310 of the shield cover 300. The connector lead-out portion 230 may have a connector 460 disposed therein. The connector lead-out portion 230 may be made of a plastic material.

[0113] The connector outlet 230 may include a first portion 232 disposed in a hole 311 in the bottom plate 310 of the shield cover 300. The connector outlet 230 may include a second portion 233 disposed below the bottom plate 310 of the shield cover 300. The first portion 232 may protrude upward from a portion of the upper surface of the second portion 233 facing the bottom plate 310 of the shield cover 300. The diameter of the first portion 232 in a direction perpendicular to the optical axis direction may be smaller than the diameter of the second portion 233 in a direction perpendicular to the optical axis direction. In this case, the mating surface between the connector outlet 230 and the shield cover 300 where the insert is injected may be maximized. This may allow the shield cover 300 and the connector outlet 230 to be more firmly fixed to each other and prevent moisture penetration. That is, the waterproof function may be maximized. The diameter of the outer circumferential surface of the first portion 232 in a direction perpendicular to the optical axis direction may be the same as the diameter of the hole 311 in the bottom plate 310 of the shield cover 300 in the corresponding direction. The first portion 232 may be inserted into the hole 311 in the bottom plate 310 of the shield cover 300. The first portion 232 may be coupled to the hole 311 in the bottom plate 310 of the shield cover 300 by insert injection. The upper surface of the second portion 233 may be coupled to the lower surface of the bottom plate 310 of the shield cover 300. The upper surface of the second portion 233 may be coupled to the lower surface of the bottom plate 310 of the shield cover 300 by insert injection. In this case, the mating surface with the connector outlet 230 of the shield cover 300 may be metal surface treated. Hereinafter, the insert injection between the shield cover 300 and the connector outlet 230 may be referred to as second insert injection.

[0114] The first insert injection may precede the second insert injection, or the second insert injection may precede the first insert injection.

[0115] The first portion 232 and the second portion 233 of the connector outlet 230 may be integrally formed. The length of the first portion 232 of the connector outlet 230 in the optical axis direction may be smaller than the length of the second portion 233 of the connector outlet 230 in the optical axis direction. The length of the first portion 232 in the optical axis direction may correspond to the thickness of the bottom plate 310 of the shield cover 300. The upper surface of the first portion 232 may be disposed on the same plane as the upper surface of the bottom plate 310 of the shield cover 300.

[0116] The connector outlet 230 may include a hole 231. The connector 460 may be disposed in the hole 231. The hole 231 may accommodate at least a portion of the connector 460. This allows the connector outlet 230 to fix the connector 460.

[0117] The difference between the camera module 20 according to another embodiment of the present invention and the camera module 10 according to the first embodiment is that the camera module 20 according to the other embodiment maximizes the external exposure of the metallic shield cover 300 to maximize the heat dissipation effect.

[0118] The camera module 20 may include a shield cover 300. The shield cover 300 may be coupled to the second body part 240. An upper part of the shield cover 300 may be coupled to the second body part 240. At least a portion of the shield cover 300 may be adhered to the second body part 240. The shield cover 300 may be made of a metal material.

[0119] The shield cover 300 may include a bottom plate 310 and a side plate 321 extending from the bottom plate 310. The side plate 321 of the shield cover 300 may include a first portion overlapping at least a portion of the second body portion 240 in a direction perpendicular to the optical axis direction, and a second portion extending from the first portion and not overlapping with the second body portion 240 in the direction perpendicular to the optical axis direction.

[0120] The first portion of the shield cover 300 may be bonded to at least a portion of the second body portion 240. The first portion may be disposed in the groove 248 of the second body portion 240. The first portion of the shield cover 300 may be bonded to the groove 248 of the second body portion 240. A surface of the first portion of the shield cover 300 facing the first surface of the groove 248 may be bonded to the first surface of the groove 248. A surface of the first portion of the shield cover 300 facing the third surface of the groove 248 may be bonded to the third surface of the groove 248. The first portion of the shield cover 300 may be metal-surface treated. Portions of the first portion of the shield cover 300 facing the first surface of the groove 248 and the third surface of the groove 248 may be metal-surface treated.

[0121] A second portion of the shield cover 300 may be exposed to the outside. The length of the second portion of the shield cover 300 in the optical axis direction may be greater than the length of the first portion of the shield cover 300 in the corresponding direction. This maximizes the exposed area of ​​the shield cover 300, thereby maximizing heat dissipation performance.

[0122] Hereinafter, heat dissipation paths of the camera modules 10 and 20 according to one and another embodiments of the present invention will be described in detail with reference to the drawings.

[0123] FIG. 33 is a diagram illustrating a heat dissipation process of a camera module according to one embodiment and another embodiment of the present invention.

[0124] In recent years, the number of boards built into a camera module has increased in response to demands for higher pixel counts in small camera modules. This has led to problems such as damage to the plastic body and components such as the image sensor due to heat generated by the boards.

[0125] 33, in the camera module 10 according to the present invention, heat generated from the substrate is transferred to the metallic shield cover 300, and the heat transferred to the shield cover 300 can be dissipated to the outside of the camera module 10 through the holes 211 and 223 of the second body 200. Also, in the camera module 20 according to the present invention, heat generated from the substrate is transferred to either the heat dissipation member 600 or the metallic shield cover 300, and the heat transferred to the shield cover 300 can be dissipated to the outside of the camera module 10 through the holes 211 and 223 of the second body 200, and the heat transferred to the heat dissipation member 600 can be transferred to the shield cover 300 and then dissipated to the outside of the camera module 10 through the holes 211 and 223 of the second body 200.

[0126] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, it should be understood by those skilled in the art that the present invention can be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not limiting.

Claims

1. a first body including a lens; a second body coupled to the first body and including a hole; a shield cover disposed within the second body, The shield cover is bonded to the second body, a portion of the side plate of the shield cover is exposed through the hole of the second body; the second body includes a bottom plate and a side plate extending from the bottom plate toward the first body, the side plate of the second body includes a first region bonded to the shield cover and a second region not bonded to the shield cover or the first body; the holes of the second body include a first hole formed in the bottom plate of the second body and a second hole formed in the side plate of the second body and arranged in a direction perpendicular to an optical axis direction, the shield cover includes a bottom plate and side plates extending from the bottom plate of the shield cover, the bottom plate of the shield cover is disposed on the bottom plate of the second body, and the side plates of the shield cover are disposed on the side plates of the second body; At least a portion of the bottom plate of the shield cover is exposed through the first hole of the second body, and at least a portion of the side plate of the shield cover is exposed through the second hole of the second body.

2. The camera module of claim 1 , wherein the thickness of the second region of the second body is greater than the thickness of the first region of the second body.

3. The camera module according to claim 2 , wherein an inner surface of the second region of the side plate of the second body protrudes inward beyond an inner surface of the first region of the side plate of the second body.

4. The camera module of claim 3 , wherein an inner plate of the side plate of the second body includes a step structure formed by the first region and the second region.

5. The camera module according to claim 3 , wherein the side plate of the shield cover is disposed in the first region of the second body.

6. The camera module according to claim 4 , wherein a sum of a thickness of the side plate of the shield cover and a thickness of the first region of the side plate of the second body is greater than a thickness of the second region.

7. The camera module according to claim 6 , wherein an inner surface of the side plate of the shield cover protrudes inward beyond an inner surface of the first region of the side plate of the second body.

8. The camera module according to claim 4 , wherein a thickness of the side plate of the shield cover is thinner than a thickness of the second region of the side plate of the second body.

9. The camera module of claim 8 , wherein a width between inner surfaces of the first regions of the second bodies facing each other is greater than a width between inner surfaces of the second regions of the second bodies facing each other.

Images