KR102595256B1 - Camera module - Google Patents

Abstract

One embodiment of the camera module includes a lens unit; A hollow front body that accommodates the lens unit in an internal space; a substrate portion disposed at the rear of the front body and provided with a plurality of printed circuit boards; A first fence coupled to the substrate portion to space the plurality of printed circuit boards apart from each other in the optical axis direction; a second fence coupled to the first fence behind the first fence; And it may include a finger electrically connecting the substrate portion and the second fence.

Description

Camera module {Camera module}

The embodiment relates to a camera module having a structure that can prevent degradation of image quality and electromagnetic compatibility (EMC) due to static electricity.

The content described in this section simply provides background information on the embodiments and does not constitute prior art.

Cars can be equipped with camera modules for various purposes. For example, when parking a car, a camera module that can secure the rear view may be mounted on the rear part of the car.

In addition, a camera module can also be used in the case of a black box for automobiles, which is very useful in tracking the details of the accident and the cause of the accident in recent years when a traffic accident occurs. In addition, the use of camera modules as a recognition device to clearly and easily identify blind spot situations that are difficult for drivers or passengers of a car to see with the naked eye is gradually increasing.

Recently, the so-called smart car, that is, a collision warning system that detects and prepares for the possibility of front and rear collisions in advance when driving, is a control device installed in the car that prevents collisions between driving cars without the driver's control. The production of cars equipped with collision avoidance systems that can directly avoid collisions is increasing, and the development of related technologies is increasing.

As the use of camera modules as a means of recognizing external situations in smart cars is increasing, the production and technology development of camera modules for automobiles are also increasing accordingly.

Accordingly, the embodiment relates to a camera module having a structure that can prevent degradation of image quality and electromagnetic compatibility (EMC) due to static electricity.

The technical problems to be achieved by the embodiment are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below.

One embodiment of the camera module includes a lens unit; A hollow front body that accommodates the lens unit in an internal space; a substrate portion disposed at the rear of the front body and provided with a plurality of printed circuit boards; A first fence coupled to the substrate portion to space the plurality of printed circuit boards apart from each other in the optical axis direction; a second fence coupled to the first fence behind the first fence; And it may include a finger electrically connecting the substrate portion and the second fence.

The plurality of printed circuit boards include: a first board disposed to face the lens unit; a third substrate disposed to be spaced apart from the first substrate in the optical axis direction; and a second substrate disposed between the first substrate and the third substrate to be spaced apart from the first substrate and the third substrate.

The finger may electrically connect the second fence and the third substrate.

The finger includes a substrate coupling portion coupled to the third substrate; and an elastic deformation part extending from the substrate coupling part and elastically deforming, wherein the second fence presses the elastic deformation part, so that the second fence and the third substrate are electrically connected to each other.

The second fence may be provided with a pressing portion that protrudes in the direction of the substrate and presses the finger.

The first fence may have a body coupling portion coupled to the front body on one side, and the front body, the body coupling portion, and the first substrate may be coupled to each other by a fastening mechanism.

The first fence includes a first protrusion supporting one surface of the printed circuit board; And it may include a second protrusion supporting the other surface of the printed circuit board.

The second substrate and the third substrate may be coupled to the first fence by the first protrusion and the second protrusion, and may be arranged to be spaced apart in the optical axis direction.

The second fence may be formed with a hook that is detachably coupled to the first fence, and the first fence may be formed with a penetrating portion that is coupled to the hook.

The second fence may be electrically connected to the substrate and ground the substrate.

The finger may be made of beryllium copper.

One embodiment of the camera module may further include a cable connection portion connecting the substrate portion and an external cable.

The cable connection part includes a first connection part coupled to the substrate part; And it may include a second connection part coupled to the first connection part and the external cable.

Another embodiment of the camera module includes a lens unit; a front body to which the lens unit is coupled; a first substrate disposed to face the lens unit; a third substrate disposed to be spaced apart from the first substrate in the optical axis direction; a second substrate disposed between the first substrate and the third substrate to be spaced apart from the first substrate and the third substrate; a first fence coupled to the first, second, and third substrates and separating the first, second, and third substrates from each other in the optical axis direction; a second fence coupled to the first fence; It includes a finger electrically connecting the second fence and the third substrate, wherein the finger includes a substrate coupling portion coupled to the third substrate; and an elastic deformation part extending from the substrate coupling part and elastically deforming, wherein the second fence presses the elastic deformation part, thereby electrically connecting the second fence and the third substrate to each other.

In an embodiment, by using a first fence including a body coupling portion, a first protrusion, and a second protrusion, a plurality of printed circuit boards provided on the substrate portion of the camera module can be consistently and easily aligned in the optical axis direction. It works.

In an embodiment, the substrate portion and the second fence are electrically connected so that static electricity generated in the substrate portion flows to the second fence, and the second fence functions as a ground portion, so that static electricity generated in the substrate portion can be eliminated or significantly reduced. It works.

In addition, by eliminating or significantly reducing static electricity generated in the substrate, it is possible to prevent deterioration of image quality and electromagnetic stability (EMC) of the camera module due to static electricity.

Figure 1 is a perspective view showing a camera module of one embodiment.
Figure 2 is an exploded perspective view showing a camera module of one embodiment.
Figure 3 is a front view showing the camera module of one embodiment.
Figure 4 is a perspective view showing a part of a camera module in one embodiment.
Figure 5 is a front view of Figure 4.
FIG. 6 is a view showing the second fence of one embodiment of FIG. 5 removed.
Figure 7 is a diagram of Figure 6 rotated around the z-axis.
Figure 8 is a perspective view showing the first fence of one embodiment.
Figure 9 is a partial perspective view showing part A of Figure 3.
Figure 10 is a perspective view showing a third substrate and fingers of one embodiment.
Figure 11 is a side view showing a finger of one embodiment.

Hereinafter, the embodiment will be described in detail with reference to the attached drawings. Since the embodiments can be subject to various changes and have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the embodiment to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the embodiment.

Terms such as “first”, “second”, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used for the purpose of distinguishing one component from another component. Additionally, terms specifically defined in consideration of the configuration and operation of the embodiment are only for explaining the embodiment and do not limit the scope of the embodiment.

In the description of the embodiment, in the case where each element is described as being formed "on or under", ) includes two elements that are in direct contact with each other or one or more other elements that are formed (indirectly) between the two elements. Additionally, when expressed as “up” or “on or under,” it can include not only the upward direction but also the downward direction based on one element.

In addition, relational terms such as "top/top/top" and "bottom/bottom/bottom" used below do not necessarily require or imply any physical or logical relationship or order between such entities or elements, It may be used to distinguish one entity or element from another entity or element.

Additionally, a rectangular coordinate system (x, y, z) can be used in the drawing. In the drawing, the x-axis and y-axis refer to planes perpendicular to the optical axis. For convenience, the optical axis direction (z-axis direction) can be referred to as the first direction, the x-axis direction can be referred to as the second direction, and the y-axis direction can be referred to as the third direction. .

Figure 1 is a perspective view showing a camera module of one embodiment. Figure 2 is an exploded perspective view showing a camera module of one embodiment. Figure 3 is a front view showing the camera module of one embodiment.

The camera module of the embodiment includes a lens unit 100, a front body 200, a substrate unit 300, a first fence 400, a second fence 500, an image sensor 700, It may include a fastening mechanism 810, a sealing member 820, and a cable connection portion 830.

The lens unit 100 is a part where external light enters, and may include a lens barrel on which at least one lens is mounted. At this time, the lens barrel may be composed of a single lens, but may also be provided with a plurality of lenses aligned in the optical axis direction, that is, in the first direction. In another embodiment, one lens or multiple lenses may be directly coupled to the front body 200 without a lens barrel.

In addition, the lens unit 100 can be coupled to the front body 200 by methods such as screwing, shape fitting, or interference fitting, so there is a gap at the coupling portion between the lens unit 100 and the front body 200. A sealing member 820 may be provided to block moisture, dust, and other foreign substances from entering the camera module.

As shown in FIG. 2, the sealing member 820 is disposed at the coupling portion of the lens unit 100 and the front body 200, and may be provided in the form of, for example, an O-ring. .

The front body 200 may be provided in a hollow shape to accommodate the lens unit 100 in an internal space. The front body 200 may have the lens unit 100 mounted on its front portion. To this end, a hollow in which the lens unit 100 is mounted may be formed in the front body 200.

The front body 200 may be combined with a housing (not shown). The front body 200 and the housing may be coupled, for example, by a coupling mechanism (not shown). To this end, as shown in FIGS. 1 and 2, a hole into which a coupling mechanism is inserted may be formed at a corner of the front body 200.

However, this is only one embodiment, and in other embodiments, the front body 200 and the housing may be joined by adhesion, shape fitting, or interference fitting without using a coupling mechanism.

The cable connection portion 830 may serve to connect the substrate portion 300 and an external cable. The camera module can receive power from the outside or exchange electrical signals with an external device through an external cable (not shown) electrically connected to the cable connection unit 830.

The cable connection part 830 may include a first connection part 831 and a second connection part 832. The first connection portion 831 may be coupled to the substrate 300, and the second connection portion 832 may be coupled to the first connection portion 831 and the external cable.

Referring to FIG. 3, the first connection portion 831 is, for example, coupled to the third substrate 313 disposed at the rearmost part of the substrate portion 300, and the second connection portion 832 is connected to the first connection portion ( 831), and the external cable can be combined with the second connection portion 832. Due to this structure, the substrate unit 300 and the external cable can be electrically connected to each other.

The substrate unit 300 is disposed at the rear of the front body 200 and may be provided with a plurality of printed circuit boards 310. The substrate unit 300 may include a printed circuit board 310 and a connector 320.

As shown in FIG. 2, a plurality of printed circuit boards 310 may be arranged to be spaced apart from each other in the optical axis direction. The printed circuit board 310 may be arranged in plurality facing the lens unit 100. In Figure 2, four printed circuit boards 310 are provided in one embodiment, but less than four or more than four may be arranged.

Hereinafter, the substrate unit 300 including the printed circuit board 310 according to the embodiment shown in FIGS. 1 to 3 will be described. The printed circuit board 310 may include a first substrate 311, a second substrate 312, and a third substrate 313.

The first substrate 311 may be arranged to face the lens unit 100. The third substrate 313 may be arranged to be spaced apart from the first substrate 311 in the optical axis direction. The second substrate 312 may be disposed between the first substrate 311 and the third substrate 313 and spaced apart from the first substrate 311 and the third substrate 313, respectively.

At this time, the second substrate 312 includes, for example, a 2-1 substrate 312-1 disposed adjacent to the first substrate 311, and a 2-1 substrate 312-1 disposed adjacent to the third substrate 313. It may include, but is not limited to, two substrates 312-2, and the second substrate 312 may be provided as one substrate or three or more substrates arranged in the optical axis direction.

The first substrate 311 faces the lens unit 100, but may be disposed adjacent to the lens unit 100, and has an image sensor 700 on the surface facing the lens unit 100, that is, the front. ) can be installed, and an electromagnetic circuit equipped with various other circuit elements, etc. can be formed.

The image sensor 700 senses the light incident through the lens unit 100, and the first substrate 311 converts the sensed image into an electrical signal and transmits it to an external image storage device or image playback device. can do. However, converting the sensed image into an electrical signal can also be performed on other substrates.

The second substrate 312, including the 2-1 substrate 312-1 and the 2-2 substrate 312-2, is disposed between the first substrate 311 and the third substrate 313. and is electrically connected to the first substrate 311 and the third substrate 313, and an electromagnetic circuit can be formed.

The 2-1 substrate 312-1 and the 2-2 substrate 312-2 may serve as an electrical path to supply necessary power to the first substrate 311, and the first substrate 311 It can serve to transmit electrical signals for the sensed image transmitted from the device to an external image storage device or image playback device.

For example, the 2-1 substrate 312-1 and/or the 2-2 substrate 312-2 converts the sensed image transmitted from the first substrate 311 into an electrical signal to be stored in an external image storage device. Alternatively, it may be transmitted to an image reproduction device, or the power input from the third substrate 313 may be rectified and transmitted to the first substrate 311.

That is, the 2-1 substrate 312-1 and/or the 2-2 substrate 312-2 are disposed between the first substrate 311 and the third substrate 313 and are connected to the first substrate 311 and the third substrate 313. The role performed by the third substrate 313 may be divided into parts.

The third substrate 313 is disposed behind the second substrate 312 and is electrically connected to the second substrate 312 to form an electromagnetic circuit. As described above, the third substrate 313 may be electrically connected to the cable connection portion 830 and an external cable.

The third substrate 313 mainly receives power required for operation of the camera module from the outside and sends it to the first substrate 311 and the second substrate 312, and the first substrate 311 and the second substrate ( 312) may serve to transmit electrical signals for the sensed image transmitted from the device to an external image storage device or image playback device.

Accordingly, the third substrate 313 may be equipped with elements such as a condenser, a rectifier, and a transformer to supply power with appropriate voltage and current required for operation of the camera module. Additionally, a cable connection portion 830 may be coupled to the third substrate 313 as described above for electrical connection to an external image storage device, an image playback device, a camera module control device, etc.

The connector 320 electrically connects the plurality of printed circuit boards 310 to each other and may be made of a flexible material. The connector 320 is connected to the printed circuit boards 310, that is, the first board 311, the 2-1 board 312-1, the 2-2 board 312-2, and the third board 313. It can serve to electrically connect each. Since the connectors 320 electrically connect each board to each other, the number of connectors 320 may be one less than the number of printed circuit boards 310.

In the embodiment, referring to FIG. 7, the printed circuit boards 310 include a first substrate 311, a 2-1 substrate 312-1, a 2-2 substrate 312-2, and a third substrate ( Since there are a total of 4 connectors 313), the connectors 320 can be provided with 3 connectors, which is one less than these.

Referring to Figures 2 and 7, in the embodiment, one connector 320 for connecting each board is provided on the side of each board, but the present invention is not limited to this, and the circuit structure of each board and the overall structure of the camera module The number and placement position of the connectors 320 can be selected by taking this into consideration.

Considering that the connector 320 is easy to connect to each board and that it needs to absorb shock and vibration to prevent damage from shock and vibration applied from the outside of the camera module, it is better to form it from a flexible material. It is appropriate. In this way, the connector 320 can be formed as a flexible circuit board.

However, the connector 320 is not limited to this, and a sturdy material may be used as long as it is resistant to shock and vibration, or a bundle of wires may be used to form the connector 320.

Additionally, soldering or adhesion using an electrically conductive adhesive may be used to connect the connector 320 and each board. This connector 320 may serve as a B2B (board to board) connector 320 that electrically connects each board.

The first fence 400 may be combined with the substrate portion 300 to space the plurality of printed circuit boards 310 from each other in the optical axis direction. The first fence 400 will be described in detail below with reference to the drawings.

Figure 4 is a perspective view showing a part of a camera module in one embodiment. Figure 5 is a front view of Figure 4. The second fence 500 is coupled to the first fence 400 at the rear of the first fence 400 and is electrically connected to the substrate 300 to ground the substrate 300. can do.

When power is supplied to the camera module from an external power source, static electricity may be generated in the camera module. In particular, static electricity generated in the substrate portion 300 may adversely affect the performance of the camera module.

For example, static electricity generated in the substrate 300 may generate electromagnetic noise, and such noise may cause the captured image to tremble or deteriorate image quality, so the electromagnetic stability of the camera module ( Electro Magnetic Compatibility (EMC) may be reduced.

In order to solve the above problem, it is necessary to ground the substrate 300 to eliminate or reduce static electricity generated in the substrate 300. In the embodiment, the second fence 500 can serve as a grounding portion. there is.

In order for the second fence 500 to become a grounding portion, the substrate portion 300 and the second fence 500 must be electrically connected to each other. This electrical connection structure will be described in detail later with reference to the drawings.

As shown in FIG. 4, the second fence 500 may surround the first fence 400 at the rear of the first fence 400 and be coupled to the first fence 400. . At this time, the second fence 500 can be detachably coupled to the first fence 400.

The second fence 500 may be formed with a hook 520 that is detachably coupled to the first fence 400. In addition, the first fence 400 may have a penetrating portion 440 formed at a portion corresponding to the hook 520 to which the hook 520 is coupled.

Since the hook 520 is elastically deformable, the hook 520 is elastically deformed and coupled to or separated from the penetrating portion 440, thereby making the second fence 500 attachable to and detachable from the first fence 400. can be combined.

As shown in FIG. 5, the camera module of the embodiment may further include fingers 600. The finger 600 may serve to electrically connect the substrate 300 and the second fence 500.

For example, the finger 600 may electrically connect the second fence 500 and the third substrate 313. The finger 600 is coupled to the third substrate 313, and the second fence 500 has a pressing portion 510 formed at a portion corresponding to the finger 600 to press the finger 600. It can be.

Due to this structure, the pressing part 510 presses the finger 600, so that the pressing part 510 and the finger 600 contact each other, and thus the second fence 500 and the third fence 500 The substrate portion 300 including the substrate 313 may be in electrical contact with each other. The specific structure of the finger 600 and the pressing portion 510 will be described in detail below with reference to the drawings.

Meanwhile, the second fence 500 is electrically connected to the third substrate 313 and is made of a conductive material, for example, so that static electricity generated in the substrate 300 can flow to the second fence 500. It is appropriate to form it from a conductive metal material.

FIG. 6 is a view showing the second fence 500 of one embodiment of FIG. 5 removed. Figure 7 is a diagram of Figure 6 rotated around the z-axis. Figure 8 is a perspective view showing the first fence 400 of one embodiment.

The first fence 400 may be combined with the substrate portion 300 to serve to space the plurality of printed circuit boards 310 from each other in the optical axis direction, and the body coupling portion 430 and the first protrusion ( 410) and a second protrusion 420.

The body coupling portion 430 may be provided on one side of the first fencer, that is, at the front, to couple with the front body 200. At this time, the body coupling portion 430 is disposed between the front body 200 and the first substrate 311 and can be coupled to the front body 200 and the first substrate 311.

At this time, the front body 200, the body coupling portion 430, and the first substrate 311 may be coupled to each other by a fastening mechanism 810 (see FIGS. 2 and 3). Due to this structure, the substrate portion 300 including the first substrate 311 can be coupled to the front body 200 by the first fence 400.

At this time, as shown in FIG. 8, a through hole is formed in the body coupling portion 430 so that the image sensor 700 mounted on the front of the first substrate 311 can face the lens portion 100. It can be.

The first protrusion 410 may support one side of the printed circuit board 310, for example, the front side. The second protrusion 420 may support the other side of the printed circuit board 310, for example, the rear side.

Accordingly, the first protrusion 410 and the second protrusion 420 can be formed to be spaced apart in the optical axis direction, and this separation distance is determined by each printed circuit board 310, that is, the second substrate 312 and the third substrate ( It can correspond to the thickness of 313).

The second substrate 312 and the third substrate 313 are coupled to the first fence 400 by the first protrusion 410 and the second protrusion 420 and are spaced apart in the optical axis direction. can be placed.

That is, the second substrate 312 and the third substrate 313 may be sandwiched between the first protrusion 410 and the second protrusion 420 and coupled to the first fence 400. Meanwhile, as described above, the first substrate 311 is coupled to the body coupling portion 430 by the fastening mechanism 810 and is not sandwiched between the first protrusion 410 and the second protrusion 420. You can.

Due to this structure, in the first fence 400 of the embodiment, the first protrusion 410 and the second protrusion 420 can be disposed at three positions spaced apart from each other in the optical axis direction. This is because, in the embodiment, the 2-1 substrate 312-1, the 2-2 substrate 312-2, and the third substrate 313 may be sandwiched between the first copper protrusion and the second protrusion 420. Because.

The first substrate 311, the 2-1 substrate 312-1, and the 2-2 substrate 312-2 are separated from each other in the optical axis direction by the first protrusion 410 and the second protrusion 420. ) and the third substrate 313 may be spaced apart from each other in the optical axis direction.

In an embodiment, by using the first fence 400 including the body coupling portion 430, the first protrusion 410, and the second protrusion 420, a plurality of devices provided on the substrate portion 300 of the camera module There is an effect in that the printed circuit board 310 can be easily aligned at a set interval in the optical axis direction.

In addition, the first fence 400 may serve to partially shield electromagnetic waves generated in the substrate 300 by being provided to surround the substrate 300.

Figure 9 is a partial perspective view showing part A of Figure 3. The finger 600 may include a substrate coupling portion 610 and an elastic deformation portion 620. The substrate coupling portion 610 may be coupled to the third substrate 313. At this time, the substrate coupling portion 610 and the third substrate 313 may be coupled to each other by soldering, conductive adhesive, etc. The elastic deformation portion 620 extends from the substrate coupling portion 610 and can be elastically deformed.

As the second fence 500 presses the elastic deformation portion 620, the second fence 500 and the third substrate 313 may be electrically connected to each other. At this time, the second fence 500 may be provided with a pressing part 510 that protrudes in the direction of the substrate part 300 and presses the finger 600.

When the pressing part 510 contacts the elastic deforming part 620 and presses the elastic deforming part 620, elastic deformation occurs in the elastic deforming part 620, and through this structure, the pressing part 510 ) and the elastic deformation part 620 can be more reliably electrically connected, and electrical disconnection between the pressing part 510 and the elastic deformation part 620 can be prevented.

That is, when the second fence 500 is coupled to the first fence 400, the end of the pressing portion 510 is positioned lower than the upper surface of the elastic deformation portion 620, so that the elastic deformation portion 620 Since deformation occurs and reliable contact with the pressing part 510 occurs, the pressing part 510 and the elastic part can be more reliably electrically connected without electrical disconnection.

When the pressing part 510 and the elastic deformation part 620 are electrically connected, the second fence 500 including the pressing part 510, the finger 600 including the elastic deforming part 620, and the finger The substrate portion 300 including 600 may be electrically connected.

Therefore, the static electricity generated in the substrate 300 can flow to the electrically connected second fence 500, and the second fence 500 serves as a grounding portion to eliminate or eliminate static electricity generated in the substrate 300. can be significantly reduced.

In the embodiment, the substrate portion 300 and the second fence 500 are electrically connected so that static electricity generated in the substrate portion 300 flows to the second fence 500, and the second fence 500 functions as a grounding portion. Therefore, there is an effect of eliminating or significantly reducing static electricity generated in the substrate unit 300.

In addition, by eliminating or significantly reducing the static electricity generated in the substrate unit 300, there is an effect of preventing degradation of image quality and electromagnetic compatibility (EMC) of the camera module due to static electricity.

Figure 10 is a perspective view showing the third substrate 313 and the finger 600 in one embodiment. Figure 11 is a side view showing the finger 600 of one embodiment.

As shown in FIG. 10, the finger 600 may be coupled to the back of the third substrate 313, which is disposed at the rearmost position among the printed circuit boards 310, for example. Additionally, the finger 600 may be provided at a position opposite to the pressing portion 510 formed on the second fence 500 in the optical axis direction.

Additionally, the fingers 600 may be provided in the same number as the pressing portions 510. In Figure 10, two fingers 600 are provided, but the present invention is not limited to this, and one or three or more fingers 600 may be provided.

Additionally, there is no particular limitation on the position of the fingers 600, and the position and number of fingers 600 can be appropriately selected considering the detailed or overall structure of the camera module. At this time, the pressing part 510 may be provided to correspond to the position and number of the fingers 600.

As shown in FIG. 11, the elastic deformation portion 620 of the finger 600 may be provided in an overall S-shape when viewed from the side. However, this is only an example, and the elastic deformation part 620 is elastically deformed by the pressure part 510, so that mechanical and electrical contact between the elastic deformation part 620 and the pressure part 510 can be reliably maintained. As long as it has a shape, the elastic deformation portion 620 may be adopted in any shape.

Meanwhile, the finger 600 is preferably made of a material with excellent wear resistance, fatigue strength, elastic limit, and electrical conductivity. Therefore, the finger 600 may be made of, for example, beryllium copper.

Although only a few examples have been described as described above in relation to the embodiments, various other forms of implementation are possible. The technical contents of the above-described embodiments can be combined in various forms unless they are incompatible technologies, and through this, can be implemented as a new embodiment.

100: Lens part
200: Front body
300: substrate part
310: printed circuit board
320: connector
400: 1st pence
410: first protrusion
420: second protrusion
430: Body joint
440: Penetrating part
500: 2nd pence
510: Pressure unit
520: hook
600: Finger
610: Board coupling part
620: Elastic deformation part
700: Image sensor

Claims (14)

Lens part;
A hollow front body that accommodates the lens unit in an internal space;
a substrate portion disposed at the rear of the front body and provided with a plurality of printed circuit boards;
A first fence coupled to the substrate portion to space the plurality of printed circuit boards apart from each other in the optical axis direction;
a second fence coupled to the first fence behind the first fence; and
It includes a finger that electrically connects the substrate portion and the second fence,
The finger includes a substrate coupling portion coupled to a printed circuit board of the substrate portion and an elastic deformation portion extending from the substrate coupling portion,
A camera module in which the second fence and the elastic deformable portion are electrically connected to each other. According to paragraph 1,
The plurality of printed circuit boards are,
a first substrate disposed to face the lens unit;
a third substrate disposed to be spaced apart from the first substrate in the optical axis direction; and
A camera module including a second substrate disposed between the first substrate and the third substrate to be spaced apart from the first substrate and the third substrate. According to paragraph 2,
A camera module in which the second fence and the third substrate are electrically connected by applying pressure to the elastic deformable portion of the second fence. According to paragraph 1,
The second fence is formed to protrude in the direction of the substrate and includes a pressing portion that presses the finger. According to paragraph 1,
A camera module in which the second fence is formed with a hook that is detachably coupled to the first fence, and the first fence is formed with a through hole that is coupled to the hook. According to paragraph 1,
The second fence is electrically connected to the substrate and grounds the substrate. According to paragraph 1,
The first fence includes a base part, a plurality of first fixing parts extending from the base part in a first direction, and a plurality of second fixing parts extending from the base part in the first direction and spaced apart from the first fixing parts. Camera module containing government. In clause 7,
The first fixing part includes a first body and a plurality of first protrusions protruding from the first body in a second direction perpendicular to the first direction,
The second fixing part is a camera module including a second body and a plurality of second protrusions protruding from the second body in the first direction and a third direction perpendicular to the second direction. According to clause 8,
A camera module in which the protrusion length of the plurality of first protrusions becomes smaller as the distance from the base portion increases. According to clause 8,
The second fixing part is a camera module in which a step is formed between the plurality of second protrusions. delete delete delete delete

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