KR102182279B1 - Method for manufacturing camera module - Google Patents

Abstract

Disclosed is a method for manufacturing a camera module. The disclosed invention includes: a first body part molding step of molding a first body part on which a lens is installed; A second body part forming step of forming a second body part having an accommodation space opened in the first direction therein; A front body molding step of injecting a first coupling portion to be integrated with the first body portion to form a front body; A rear body shaping step of injecting a second coupling portion to be integrated with the second body portion to form a rear body having an accommodation space therein; And a fusion bonding step of bonding the front body and the rear body in the first direction by fusion bonding the first coupling portion and the second coupling portion in a first direction.

Description

Camera module manufacturing method {METHOD FOR MANUFACTURING CAMERA MODULE}

The present invention relates to a camera module manufacturing method, and more particularly, to a camera module manufacturing method for manufacturing a camera module used for the purpose of securing a field of view of a vehicle.

Camera modules for collecting image data are being used in more and more applications. For example, a number of camera modules are used for modern automobiles to accurately detect the surrounding environment of the vehicle and, in some cases, the interior space of the vehicle.

As the camera module used is further improved, the image quality can be improved more and more, and additional functions can be incorporated into the camera module in some cases. In addition, the trend of miniaturization of camera modules used at the same time is increasing.

In the camera module installed in such a vehicle, since a momentary malfunction may have a fatal effect on the life of an occupant, reliability and stability are of the utmost priority, and high watertightness is required as well as operational stability in cold and hot conditions.

In addition, as camera modules mounted in vehicles are rapidly increasing in density and space saving, the effect of heat generated during operation of the camera module on product performance must also be seriously considered.

Typically, a housing of a camera module mounted on a vehicle is made of a plastic or metal material.

However, the plastic housing has a disadvantage in that it is difficult to dissipate heat generated inside the housing due to its very low thermal conductivity, and the metal housing has a problem in that it is difficult to secure light weight and watertightness compared to the plastic housing.

In addition, both the plastic housing and the metal housing are provided in the form of assembling the front body and the rear body, and only a screw-based method is applied to their assembly. However, this assembly method has a high possibility of misassembly and the like, it is difficult to secure watertightness, and causes an increase in the total number of parts and processes.

An object of the present invention is to provide a camera module manufacturing method capable of manufacturing a camera module having high heat dissipation performance and water tightness.

In addition, another object of the present invention is to provide a camera module manufacturing method capable of manufacturing a camera module having high structural stability and watertightness while reducing the number of parts and processes.

The method for manufacturing a camera module according to the present invention includes: a first body part molding step of molding a first body part on which a lens is installed; A second body part forming step of forming a second body part having an accommodation space opened in the first direction therein; A front body forming step of forming a front body by combining a first coupling portion so as to be integral with the first body portion; A rear body shaping step of forming a rear body having the receiving space formed therein by combining a second coupling portion so as to be integral with the second body portion; And a fusion bonding step of bonding the front body and the rear body in the first direction by abutting and fusion bonding the first coupling portion and the second coupling portion in the first direction.

In addition, in the front body molding step, it is preferable to insert-inject the first body part and the first coupling part.

In addition, it is preferable that the first body portion and the second body portion are formed of a material having higher thermal conductivity than the first coupling portion and the second coupling portion.

In addition, it is preferable that the first body part and the second body part are formed of an aluminum material.

In addition, the present invention further comprises a surface treatment step of forming a surface treatment surface on at least one of the first body part and the second body part by surface-treating at least one of the first body part and the second body part. Including, at least one of the step of molding the front body and the step of molding the rear body, the first body portion or the second body portion on which the surface treatment surface is formed, and insert injection into the front surface It is preferable to shape the body or the rear body.

In the surface treatment step, it is preferable to oxidize the outer surface of the first body part or the second body part so that fine grooves are formed on the outer surface of the first body part or the second body part.

In addition, one of the first coupling portion and the second coupling portion is formed of a material capable of laser transmission, the other of the second coupling portion and the second coupling portion is formed of a material capable of absorbing laser, and the In the fusion bonding step, the first coupling portion and the second coupling portion are irradiated with a laser toward the first coupling portion and the second coupling portion while the first coupling portion and the second coupling portion are butted to each other along the first direction. It is preferable to fuse the second coupling portion.

In addition, the first coupling portion is formed of a material capable of transmitting laser, the second coupling portion is formed of a material capable of absorbing laser, and the first coupling portion and the second coupling portion are formed in a plane direction orthogonal to the first direction. Is formed to protrude outward from the first body portion in a second direction, and in the fusion bonding step, the first side in the first direction so that the laser penetrates the first coupling portion and reaches the second coupling portion. It is desirable to direct the laser towards the joint.

In addition, the first coupling portion is formed of a material capable of absorbing laser, the second coupling portion is formed of a material capable of laser transmission, and the first coupling portion and the second coupling portion are formed in a plane direction orthogonal to the first direction. Is formed to protrude outward from the second body portion in a second direction, and in the fusion bonding step, the second side in the first direction so that the laser penetrates the second coupling portion and reaches the first coupling portion. It is preferable to irradiate a laser toward the coupling portion.

In addition, in any one of the first coupling portion and the second coupling portion, a protrusion protruding toward the other of the first coupling portion and the second coupling portion is provided, and the first coupling portion and the second coupling portion In the other of the portions, a concave groove formed in a shape corresponding to the shape of the protrusion is provided, and the protrusion is inserted into the concave groove to form a fitting coupling between the first coupling part and the second coupling part. In the fusion bonding step, the protrusion is irradiated with a laser from one side in the first direction toward the protrusion to fuse the protrusion to the first coupling part, or by irradiating a laser toward the protrusion from the other side in the first direction. It is preferable to fused to the second coupling portion.

In addition, the protrusion is formed to have a length longer than the depth of the concave groove, and in the fusion bonding step, a laser is irradiated toward the protrusion while pressing the front body and the rear body in a direction close to each other, It is preferable that an end portion is melted, and a longitudinal end portion of the melted protrusion is fused with the first coupling portion in the concave groove to form fusion bonding between the first coupling portion and the second coupling portion.

According to the method of manufacturing a camera module of the present invention, there is an effect of providing a camera module having high watertightness while providing high heat dissipation performance.

In addition, the present invention can reduce the number of parts and processes while having high structural stability and watertightness, thereby providing a highly reliable camera module at low cost.

1 is a perspective view showing a camera module according to a first embodiment of the present invention.
2 is an exploded perspective view showing a partial configuration of the camera module shown in FIG. 1 by separating.
3 is a cross-sectional view taken along line "III-III" of FIG. 1.
FIG. 4 is an enlarged view of a portion "IV" of FIG. 3.
5 is a view showing another example of the coupling portion shown in FIG. 2.
6 is a cross-sectional view taken along the line "VI-VI" in FIG. 1.
7 is a flowchart showing a method of manufacturing a camera module according to the first embodiment of the present invention.
8 is a perspective view showing a camera module according to a second embodiment of the present invention.
9 is an exploded perspective view showing a partial configuration of the camera module shown in FIG. 8 by separating.
10 is a cross-sectional view taken along the line "X-X" of FIG. 8.
11 is a cross-sectional view showing the configuration of a camera module according to a third embodiment of the present invention.

Hereinafter, an embodiment of a method for manufacturing a camera module according to the present invention will be described with reference to the accompanying drawings. For convenience of description, thicknesses of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

[Overall structure of the camera module according to the first embodiment of the present invention]

1 is a perspective view showing a camera module according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view showing a partial configuration of the camera module shown in FIG. 1 by separating, and FIG. It is a cross-sectional view along the line -Ⅲ".

1 to 3, the camera module 100 according to the first embodiment of the present invention includes a front body 110 and a rear body 120.

The front body 110 forms the front exterior of the camera module 100. A lens assembly 160 is installed on the front body 110, and for this purpose, a shape portion for insertion, coupling and seating of the lens assembly 160 is formed on the front body 110.

The lens assembly 160 may be provided in a form including at least one lens, a cylindrical barrel structure accommodating the lens, and a screw structure formed outside the barrel structure for coupling between the barrel structure and the front body. .

In addition, a through portion for insertion of the lens assembly 160 may be formed in the front body 110, and a screw structure may be formed on an inner peripheral surface of the front body 110 in which the through portion is formed. Through the coupling between the screw structure of the lens assembly 160 and the screw structure of the front body 110, the screw connection between the lens assembly 160 and the front body 110 may be achieved. In addition, in front of the front body 110, a stepped jaw may be formed in which the front portion of the lens assembly 160 installed on the front body 110 is seated.

The rear body 120 forms the rear exterior of the camera module 100. In the rear body 120, a wiring receptor 170 is installed so that wirings connected to substrates accommodated in the rear body 120 can be drawn out of the rear body 120. To this end, a shape portion for coupling between the wire receptor 170 and the rear body 120 is formed on the rear body 120.

Inside the rear body 120, an accommodation space S opened in the first direction is formed therein. Define the direction. In this embodiment, it is exemplified that the first direction is the front-rear direction. In addition, the second direction is a direction parallel to a plane orthogonal to the first direction, and in this embodiment, it is exemplified that it is a lateral direction, that is, a vertical, left, and right direction.

The accommodation space S formed inside the rear body 120 is opened toward the front, that is, toward the front body 110 disposed in front of the rear body 120. And in this accommodation space (S), substrates may be accommodated.

In this embodiment, it is exemplified that the first substrate 130 and the second substrate 140 are accommodated in the accommodation space S. The first substrate 130 and the second substrate 140 are disposed to be spaced apart from each other by a predetermined distance in the front-rear direction. Among them, an image sensor for converting light passing through the lens assembly 160 into an electrical signal may be mounted on the first substrate 130 disposed on the front side adjacent to the lens assembly 160.

A power processing circuit for processing and supplying power supplied to the camera module 100 may be provided on the second substrate 140. The second substrate 140 may be connected to an external power source through a wiring connected to the second substrate 140. In addition, the wiring connected to the second substrate 140 may be drawn out through the wiring receptor 170 installed at the rear of the rear body 120.

The first substrate 130 and the second substrate 140 are electrically connected to each other, and an electrical connection between the first substrate 130 and the second substrate 140 may be made by the connection substrate 150.

Meanwhile, the front body 110 and the rear body 120 are provided as separate items separated from each other, and the front body 110 and the rear body 120 provided as separate items are combined with each other in the front and rear directions to form one camera module 100. To achieve.

At this time, the accommodation space S that was open toward the front is sealed by the coupling between the front body 110 and the rear body 120. Accordingly, the substrates installed inside the camera module 100 are accommodated in the enclosed accommodation space S by the coupling between the front body 110 and the rear body 120.

[Structure of front body]

The front body 110 may include a first body part 111 and a first coupling part 113.

The first body part 111 forms a skeleton of the front body 110 and forms most of the exterior of the front body 110. Most of the shape portions required for the lens assembly 160 to be inserted, coupled, and seated in the front body 110 may be formed on the first body portion 111.

The first body part 111 may be divided into a first section 111a and a second section 111b along the front-rear direction. Among them, the first section 111a is a section exposed to the front of the camera module 100 when the front body 110 and the rear body 120 are coupled. In addition, the remaining second section 111b is a section inserted into the rear body 120 when the front body 110 and the rear body 120 are coupled to each other.

In the first section 111a, most of the shape portions necessary for the lens assembly 160 to be inserted, coupled, and seated in the front body 110 are disposed. Accordingly, the shape of the front side of the first section 111a in which the lens assembly 160 is installed has a shape including a curved shape in consideration of the shape of the lens assembly 160 including a circular lens. In addition, the shape of the rear side of the first section 111a facing the rear body 120 may be similar to the shape of the outer circumferential surface of the rear body 120.

The second section 111b is a section that is inserted into the interior of the rear body 120 when the front body 110 and the rear body 120 are coupled, and thus has a shape similar to the shape of the inner peripheral surface of the rear body 120. Can be formed. This second section 111b is also a part that is coupled to the first substrate 130 in the rear body 120.

The first coupling part 113 is a part provided for coupling between the rear body 120 and the front body 110. The first coupling portion 113 is formed to protrude in a second direction that is parallel to a plane direction orthogonal to the first direction, in other words, in a side outward direction of the first body portion 111. That is, when viewed from the front, the first coupling portion 113 is disposed outside the first body part 111 in the lateral direction and is formed to protrude outward in the lateral direction of the first body part 111.

In addition, the first coupling portion 113 is disposed at a boundary point between the first section 111a and the second section 111b when viewed from the side. That is, the first coupling part 113 is formed of the first section 111a and the rear body 120 exposed to the front of the camera module 100 when the front body 110 and the rear body 120 are coupled. It is disposed at the boundary between the second sections 111b inserted into the interior.

The first coupling part 113 is formed of a material different from that of the first body part 111. The first coupling portion 113 is a portion provided for coupling between the rear body 120 and the front body 110 to be described later, and may be integrally formed with the first body portion 111.

In this embodiment, it is exemplified that the first coupling portion 113 is formed of a resin material, and the first body portion 111 is formed of a metal material having higher thermal conductivity than the first coupling portion 113. As an example, the first coupling part 113 may be formed of a resin material capable of injection molding, and the first body part 111 may be formed of an aluminum material having high thermal conductivity.

The front body 110 may be molded in a form in which the first body part 111 and the first coupling part 113 are insert-injected. That is, by injection molding the first coupling portion 113 in a state in which the first body portion 111 formed of aluminum is inserted into the resin for molding the first coupling portion 113, the first body portion 111 and the The front body 110 in which the first coupling part 113 is integrally formed may be manufactured.

Accordingly, the front body 110 in which the first body part 111 made of a metal material having high thermal conductivity and the first coupling part 113 made of a resin material are integrally formed in one injection molding operation can be provided.

As an example, the first body part 111 may be manufactured using molten aluminum. In addition, a surface treatment surface may be formed on the surface of the first body part 111 manufactured as described above.

The surface treatment surface may be formed by surface-treating the first body part 111 so that fine grooves are formed on the outer surface of the first body part 111, and the first body part ( Fine grooves are formed on the outer surface of 111).

When the first coupling part 113 is injection-molded with the first body part 111 having the surface treatment surface inserted therein, the resin penetrates into the grooves formed on the outer surface of the first body part 111. Since the injection is made in a state, the first body part 111 and the first coupling part 113 can be combined with a stronger bonding force.

As a result, the first body part 111 and the first coupling part 113 are not easily separated, and the front body 110 combined with a strong bonding force can be provided.

[Rear body structure]

The rear body 120 may include a second body portion 121 and a second coupling portion 123.

The second body part 121 forms a skeleton of the rear body 120 and forms most of the exterior of the rear body 120. Most of the shape portions required for the wiring receptor 170 to be installed on the rear body 120 may be formed on the second body portion 121.

The second body part 121 may be formed in a polyhedral shape in which the receiving space S is formed. In this embodiment, it is exemplified that the second body part 121 is formed in a shape including a hexahedral shape with an accommodation space S formed therein and an open front.

The second body portion 121 may be coupled to the first body portion 111 in the front-rear direction through a coupling between the first coupling portion 113 and the second coupling portion 123 to be described later.

The second coupling part 123 is a part provided for coupling between the rear body 120 and the front body 110. The second coupling part 123 is disposed in front of the opening of the second body part 121, and may be disposed at the front edge of the second body part 121 surrounding the periphery of the accommodation space S. have.

The second coupling portion 123 may be coupled to the first coupling portion 113 in the front and rear directions of the second body portion 121. By the coupling between the first coupling part 113 and the second coupling part 123 made in this way, coupling between the front body 110 and the rear body 120 provided separately from each other can be achieved, and the front side was opened. The space (S) may be sealed by such a combination.

The second coupling portion 123 is formed of a material different from that of the second body portion 121. In this embodiment, it is exemplified that the second coupling portion 123 is formed of a resin material, and the second body portion 121 is formed of a metal material having higher thermal conductivity than the second coupling portion 123. As an example, the second coupling part 123 may be formed of a resin material capable of injection molding, and the second body part 121 may be formed of an aluminum material having high thermal conductivity.

At this time, the second body part 121 may be formed of the same material as the first body part 111. In contrast, the second coupling portion 123 is formed of a resin material that is easy to be injected, like the first coupling portion 113, but may be formed of a material different from the first coupling portion 113. A detailed description of this will be described later.

The rear body 120 may be molded in a form in which the second body portion 121 and the second coupling portion 123 are insert-injected. That is, by injection molding the second coupling portion 123 in a state in which the second body portion 121 formed of aluminum is inserted into the resin for molding the second coupling portion 123, the second body portion 121 and The rear body 120 in which the second coupling part 123 is integrally formed may be manufactured.

As a result, a rear body 120 in which the second body portion 121 made of a metal material having high thermal conductivity and the second coupling portion 123 made of a resin material are integrally formed in a single injection molding operation can be provided.

At this time, the second body part 121 may be manufactured using molten aluminum. In addition, a surface treatment surface may be formed on the surface of the second body part 121 manufactured as described above.

The surface treatment surface may be formed by surface-treating the second body part 121 so that fine grooves are formed on the outer surface of the second body part 121, and the second body part ( Fine grooves are formed on the outer surface of 121).

When the second coupling part 123 is injection-molded with the second body part 121 having the surface treatment surface inserted therein, the resin penetrates the grooves formed on the outer surface of the second body part 121. Since the injection is made in a state, the second body portion 121 and the second coupling portion 123 can be coupled with a stronger bonding force.

Accordingly, the second body portion 121 and the second coupling portion 123 are not easily separated, and the rear body 120 coupled with a strong bonding force can be provided.

[Combination structure between front body and rear body]

According to this embodiment, manufacturing of the camera module 100 is completed by combining the front body 110 and the rear body 120.

As described above, in the front body 110, the first body part 111 and the first coupling part 113 are integrally formed by insert-injecting the first body part 111 and the first coupling part 113 It is provided in a molded form. In addition, the rear body 120 is formed by insert-injecting the second body portion 121 and the second coupling portion 123 to form the second body portion 121 and the second coupling portion 123 integrally formed. Is provided as.

Therefore, the coupling between the front body 110 and the rear body 120 is due to the coupling between the first coupling part 113 provided on the front body 110 and the second coupling part 123 provided on the rear body 120. Can be done by

Unlike the first body portion 111 and the second body portion 121 formed of a metal material such as aluminum, the first coupling portion 113 and the second coupling portion 123 are formed of a resin material. In addition, the first coupling portion 113 and the second coupling portion 123 may be coupled to each other by being fused by a laser in a state that is butted in the first direction, that is, in the front-rear direction.

To this end, one of the first coupling portion 113 and the second coupling portion 123 may be formed of a material capable of laser transmission, and the other one of the first coupling portion 113 and the second coupling portion 123 May be formed of a material capable of absorbing laser.

In the present embodiment, it is exemplified that the first coupling portion 113 is formed of a material capable of laser transmission, and the second coupling portion 123 is formed of a material capable of absorbing laser.

According to this, in order to fuse the first coupling portion 113 and the second coupling portion 123, from the front of the first coupling portion 113 and the second coupling portion 123, toward the first coupling portion 113 The laser is irradiated. The laser irradiated toward the first coupling portion 113 passes through the first coupling portion 113 and then reaches the second coupling portion 123, and accordingly, a portion of the second coupling portion 123 that absorbs the laser The melted and then solidified, and the first coupling portion 113 and the second coupling portion 123 are fused to each other, so that the first coupling portion 113 and the second coupling portion 123 may be bonded.

According to this embodiment, in a state in which the first coupling portion 113 and the second coupling portion 123 are butted in the front-rear direction, when viewed from the front, the first coupling portion 113 and the second coupling portion 123 Is disposed to protrude outward than the first body part 111, so that the laser irradiated from the front of the camera module 100 can effectively reach the first coupling part 113 and the second coupling part 123. Are under conditions.

In addition, since the first coupling portion 113 that the laser irradiated from the front reaches first is formed of a material capable of laser transmission, even if the laser is irradiated from the front side rather than the side of the camera module 100, the first coupling portion 113 ) And the second coupling part 123 can be effectively fused.

It is meaningful in the following points that the laser is irradiated from the front, and the coupling between the first coupling part 113 and the second coupling part 123 is made using this.

The front body 110 disposed in the front and the rear body 120 disposed at the rear thereof are designed to be coupled to each other in the front and rear directions by fusion between the first coupling portion 113 and the second coupling portion 123. .

To this end, the first coupling portion 113 and the second coupling portion 123 are coupled to each other in a form in which they are fused while being butted in the front-rear direction. At this time, the front body 110 and the rear body 120 are pressed in a direction close to each other so that the first coupling portion 113 and the second coupling portion 123 are in close contact with each other. This is because the adhesion between the first coupling part 113 and the second coupling part 123 must be high so that the fusion adhesion between the first coupling part 113 and the second coupling part 123 can be made more efficiently.

The fact that the first coupling part 113 and the second coupling part 123 are fused by the laser irradiated from the front means the direction in which the first coupling part 113 and the second coupling part 123 are in close contact. It means that the fusion bonding between the first coupling portion 113 and the second coupling portion 123 is performed in the same or parallel direction.

That is, since the first coupling portion 113 and the second coupling portion 123 can be fused in a direction in which the first coupling portion 113 and the second coupling portion 123 are in close contact with each other, the first coupling portion ( The fusion bonding between the 113) and the second bonding portion 123 is made more efficient, and the bonding strength between the first bonding portion 113 and the second bonding portion 123 can be further increased.

If the laser irradiation is not performed in front of the camera module 100 but is performed in the side of the camera module 100, the direction in which the first coupling part 113 and the second coupling part 123 are in close contact Fusion is made between the first coupling portion 113 and the second coupling portion 123 in a completely different direction.

In that case, the fusion bonding between the first coupling portion 113 and the second coupling portion 123 cannot be achieved over the entire contact point between the first coupling portion 113 and the second coupling portion 123, and the first coupling portion 113 ) And the outer circumferential surface of the second coupling portion 123, so that the fusing operation cannot be performed efficiently, and the bonding strength of the fusing portion is also reduced that much.

In addition, if the laser irradiation is performed on the side of the camera module 100, since laser irradiation cannot be performed on the entire contact point between the first coupling portion 113 and the second coupling portion 123 in one laser irradiation operation, Since the laser irradiation operation has to be repeated several times while changing the location and location, the increase of the working time and the inconvenience is inevitably increased.

Therefore, as in this embodiment, the structure in which the laser is irradiated from the front, and the coupling between the first coupling part 113 and the second coupling part 123 is achieved using this, is the first coupling part 113 and the first coupling part 113 It is a structure that is very effective compared to other structures in that it can provide an effect of improving the efficiency of the fusing operation between the two coupling portions 123 and the bonding strength between the first coupling portion 113 and the second coupling portion 123 It can be said.

As another example, the first coupling portion 113 is formed of a material capable of absorbing laser, and the second coupling portion 123 is formed of a material capable of laser transmission, and the first coupling portion 113 and the second coupling portion ( 123) may be formed. At this time, when viewed from the rear, the first coupling portion 113 and the second coupling portion 123 may be formed to protrude further outward in the lateral direction than the second body portion 121.

In this case, in order to fuse the first coupling portion 113 and the second coupling portion 123, from the rear of the first coupling portion 113 and the second coupling portion 123, toward the second coupling portion 123 The laser is irradiated. The laser irradiated toward the second coupling part 123 reaches the first coupling part 113 after passing through the second coupling part 123, and thus a part of the first coupling part 113 absorbing the laser The melted and then solidified, and the first coupling portion 113 and the second coupling portion 123 are fused to each other, so that the first coupling portion 113 and the second coupling portion 123 may be bonded.

[Fitting structure between the first coupling part and the second coupling part]

FIG. 4 is a view showing an enlarged portion "IV" of FIG. 3, and FIG. 5 is a view showing another example of the coupling part shown in FIG.

4, the other one of the first coupling part 113 and the second coupling part 123 is provided on a surface of any one of the first coupling part 113 and the second coupling part 123 that faces each other. A protrusion 124 protruding toward is provided. In addition, a concave groove 114 formed in a shape corresponding to the shape of the protrusion 124 is provided on the other one of the first coupling portion 113 and the second coupling portion 123 facing each other. The protrusion 124 may be inserted into the concave groove 114, and the protrusion 124 is inserted into the concave groove 114, so that the first coupling part 113 and the second coupling part 123 are fitted together. This can be done.

In the present embodiment, it is exemplified that the concave groove 114 is provided in the first coupling part 113 and the protrusion 124 is provided in the second coupling part 123. According to this, the protrusion 124 protruding from the second coupling portion 123 is fitted into the concave groove 114 formed concave in the first coupling portion 113, thereby the first coupling portion 113 and the second A fitting coupling between the coupling portions 123 is made.

Before the first coupling portion 113 and the second coupling portion 123 are fused by the fitting coupling between the first coupling portion 113 and the second coupling portion 123 made as described above, the first coupling portion 113 ) And the second coupling part 123 may be temporarily fixed, and also the first coupling part 113 and the second coupling for fusion work between the first coupling part 113 and the second coupling part 123 Position guidance of the unit 123 can be made.

In addition, by the fitting coupling between the first coupling portion 113 and the second coupling portion 123 made as described above, the coupling portion between the first coupling portion 113 and the second coupling portion 123 is not formed in a linear shape. Instead, it forms a shape that is bent into a "c" shape.

Thus, compared to the case where the coupling portion between the first coupling portion 113 and the second coupling portion 123 is formed in a linear shape, the surface involved in the coupling between the first coupling portion 113 and the second coupling portion 123 By increasing the area of the first coupling part 113 and the second coupling part 123, the strength of the coupling between the first coupling portion 113 and the second coupling portion 123 can be further improved.

In addition, when the coupling portion between the first coupling portion 113 and the second coupling portion 123 is formed in a "c" shape as described above, the first coupling portion 113 and the second coupling portion 123 The sealing performance at the bonding site of the liver can be further improved. Accordingly, the accommodation space S formed inside the camera module 100 can be more effectively sealed, and thus the camera module 100 can provide more improved waterproof performance.

Meanwhile, the protrusion 124 is formed to protrude from the second coupling portion 123 toward the first coupling portion 113, that is, from the front end of the second coupling portion 123 toward the front. The protrusion 124 is formed integrally with the second coupling portion 123, and thus the protrusion 124 is formed of the same material as the second coupling portion 123, that is, a resin material capable of absorbing laser.

In addition, the protrusion 124 is formed to have a length longer than the depth of the concave groove 114. Therefore, when the protrusion 124 is inserted into the concave groove 114, a part of the protrusion 124 cannot be inserted into the concave groove 114 and is located outside the concave groove 114.

In this way, the protrusion 124 is formed to have a length longer than the depth of the concave groove 114, indicating that the protrusion 124 is melted when fusion between the first coupling part 113 and the second coupling part 123 is made. It was considered.

As described above, the fusion bonding between the first coupling portion 113 and the second coupling portion 123 is performed from the front while pressing the first coupling portion 113 and the second coupling portion 123 in a direction close to each other. It consists of a method of irradiating a laser toward the first coupling portion 113 and the second coupling portion 123.

In this process, the laser may be irradiated intensively toward the protrusion 124, and accordingly, the protrusion 124 is melted by the irradiated laser and is fused with the first coupling part 113 inside the concave groove 114. Can be.

At this time, the protrusion 124 may be melted within the concave groove 114 by a length corresponding to the difference in the depth of the concave groove 114 and the length of the protrusion 124, and thus the molten portion of the protrusion 124 While filling the gap between the 124 and the concave groove 114, the fusion bonding between the first coupling portion 113 and the second coupling portion 123 may be made more tightly. And as the length of the protrusion 124 is shortened by the melted portion of the protrusion 124, the protrusion 124 and the concave groove 114 may be fitted so that the protrusion 124 and the concave groove 114 are completely engaged. have.

That is, since the protrusion 124 is formed to have a length longer than the depth of the concave groove 114, the fusion bonding between the first coupling part 113 and the second coupling part 123 can be made with more stable and hard strength.

Meanwhile, as described above, the first coupling portion 113 is formed of a material capable of absorbing laser, and the second coupling portion 123 is formed of a material capable of laser transmission. The coupling part 123 may be formed.

If the first coupling portion 113 and the second coupling portion 123 are formed in such a form, the protrusion 124 to be described later is on the first coupling portion 113, not the second coupling portion 123. The concave groove 114, which will be described later, should be provided in the second coupling part 123, not the first coupling part 113.

As another example, as shown in FIG. 5, an engaging surface (a) may be formed on a surface facing the first engaging portion 113 and the second engaging portion 123.

The mating surface (a) is disposed on a surface facing each other of the protrusion 124 and the concave groove 114 and is formed in a shape that can be engaged with each other. At this time, the engaging surface (a) may be formed on the front end of the protrusion 124 and the surface facing the concave groove 114, the lateral outer surface of the protrusion 124 and the concave groove 114 facing it It may be formed on the inner side of the lateral direction.

When the engaging surface (a) is formed on the surfaces facing each other of the protrusion 124 and the concave groove 114 in this way, the area of the surface involved in the bonding between the first engaging portion 113 and the second engaging portion 123 By further increasing, the strength of the coupling between the first coupling portion 113 and the second coupling portion 123 can be further improved, and the coupling portion between the first coupling portion 113 and the second coupling portion 123 The sealing performance in the can be further improved.

[Substrate installation structure]

6 is a cross-sectional view taken along line "VI-VI" of FIG. 1, and FIG. 7 is a view showing another example of the substrate fixing structure shown in FIG. 6.

Referring to FIGS. 2 and 6, at least one substrate may be accommodated in an accommodation space S formed inside the front body 110 and the rear body 120 combined as described above. In this embodiment, it is illustrated that the first substrate 130 and the second substrate 140, that is, two substrates are accommodated in the accommodation space S.

The first substrate 130 is disposed in front of the two substrates, and is disposed closer to the first body part 111 of the front body 110 than the second substrate 140. In addition, the second substrate 140 is disposed at the rear of the two substrates, and is disposed closer to the wiring receptor 170 than the first substrate 130.

The first substrate 130 and the second substrate 140 may each include a circuit forming unit P1 and a non-circuit forming unit P2. The circuit forming unit P1 is a portion in which a circuit connected to an image sensor or a power circuit is formed, and occupies most of the first substrate 130 and the second substrate 140. In addition, the non-circuit forming portion P2 is a portion in which a circuit is not formed, and may be disposed outside the circuit forming portion P1 in the lateral direction.

In this embodiment, it is exemplified that the first substrate 130 and the second substrate 140 are formed in the shape of a polygonal plate, for example, a square plate. In addition, in the first substrate 130 and the second substrate 140, the circuit unformed portion P2 is disposed on at least one of the corners of the first substrate 130 and the second substrate 140, respectively, The circuit forming portion P1 occupies most of the remaining area in which the circuit unformed portion P2 is not formed. As an example, the non-circuit forming portion P2 may be disposed at a pair of corners of the first substrate 130 and the second substrate 140 that face each other diagonally.

The first substrate 130 may be coupled to the first body part 111, more specifically, the second section 111b to be fixed inside the accommodation space S. The shape of the rear end of the second section 111b may be formed to have a shape similar to that of the rim of the first substrate 130. Therefore, when the first body part 111 and the first substrate 130 are abutted to each other, the rear end of the second section 111b is in contact with the rim of the first substrate 130. 111) and the first body part 111 may be coupled.

In the coupling between the first body part 111 and the first substrate 130, the rear end of the first body part 111 is the front surface of the first substrate 130, that is, the first body part 111 and the first body part 111 One may be formed in a form coupled to one side of the substrate 130. In this case, the combination may be made in a form in which the rear end of the second section 111b and the first substrate 130 are bonded with an insulating agent.

According to the present embodiment, the second substrate 140 may be coupled to the front body 110 as well as the first substrate 130 to be fixed inside the receiving space S. To this end, the front body 110 may further include a first support boss unit 115.

The first support boss 115 is provided on the front body 110, and is provided to protrude to the rear of the first body 111 and the first coupling portion 113. The first support boss 115 may be formed to protrude rearward from the portion where the first coupling portion 113 is disposed, and may be formed in a cylindrical shape having a length extending in the front-rear direction. In addition, a hollow extending along the longitudinal direction of the first support boss 115 is formed in the first support boss 115, and a screw for screwing into the inside of the first support boss 115 formed with a hollow Structures can be formed.

The first support boss portion 115 is formed to have a length protruding further rearward than the first substrate 130 coupled to the first body portion 111. A second substrate 140 disposed behind the first substrate 130 may be abutted to the rear end of the first support boss 115. In addition, the first support boss portion 115 and the second substrate 140 butted in this way may be coupled by a screw, and the second substrate 140 is coupled to the front body 110 and accommodated through this coupling. It can be fixed inside the space (S).

On the other hand, since the front end of the first support boss 115 is positioned in front of the first substrate 130 and its rear end is positioned behind the first substrate 130, the first support boss 115 is A structure must be provided to allow the first substrate 130 to pass through an area in which it is disposed.

To this end, a non-circuit forming portion P2 is disposed at a corner diagonally facing each other of the first substrate 130, and a through hole is formed in at least one of the non-circuit forming portions P2 of the first substrate 130. I can.

That is, the first support boss 115 passes through the first substrate 130 through a through hole formed in the non-circuit forming portion P2 disposed at the edge of the first substrate 130 and passes through the second substrate 140. Can be connected to the side.

In this case, the location and number of through holes formed in the first substrate 130 may be determined according to the location and number of the first support bosses 115. For example, if a pair of first support boss portions 115 are arranged to face each other diagonally, a pair of through holes may be formed at positions suitable for this. As another example, if two pairs of first support boss portions 115 are provided to pass through each corner portion of the first substrate 130, each through hole may be disposed at each corner of the first substrate 130.

In this embodiment, four first support boss portions 115 are provided on the front body 110, and accordingly, four corner portions of the second substrate 140 are coupled to the first support boss portions 115, respectively. It is illustrated as being supported by the first support boss part 115. In such an arrangement form of the first support boss 115, the first support boss 115 and the second substrate 140 can be easily and safely coupled through the edge of the substrate on which the circuit is not formed. There is an advantage of increasing the stability of supporting the substrate.

As an example, the first support boss portion 115 may be formed of the same material as the first coupling portion 113 and integrally injected with the first coupling portion 113. As another example, the first support boss portion 115 may be formed of the same material as the first body portion 111 and formed integrally with the first body portion 111.

When the first support boss portion 115 is formed of the same material as the first coupling portion 113, it may be injected integrally with the first coupling portion 113, so that the molding of the first support boss portion 115 is somewhat It can be easily made at a lower cost, and there is an advantage in maintaining insulation between the second substrate 140 and the first support boss 115.

Unlike this, when the first support boss portion 115 is formed of the same material as the first body portion 111, the first support boss portion 115 may support the second substrate 140 more stably. There is an advantage of securing strength.

According to this embodiment, an image sensor that converts light that has passed through the lens assembly 160 into an electrical signal is mounted on the first substrate 130, and is supplied to the second substrate 140 through wiring connected to an external power source. A power processing circuit for processing and supplying the power to be supplied may be provided. The electrical connection between the first substrate 130 and the second substrate 140 may be made by the connection substrate 150.

The connection substrate 150 may be formed of a flexible circuit board (FPCB), unlike the first substrate 130 and the second substrate 140 formed of a rigid circuit board having a hard material. The connection substrate 150 is disposed on the side of the first substrate 130 and the second substrate 140 in the receiving space S to electrically connect the first substrate 130 and the second substrate 140. I can.

As described above, the front body 110 may be provided in a form capable of being combined with both the first substrate 130 and the second substrate 140. When the front body 110 is provided in a form capable of being combined with both the first substrate 130 and the second substrate 140 as described above, the lens assembly 160, the first substrate 130 and the second substrate 140 ) And the connection substrate 150 are fixed to the front body 110 so that the lens assembly 160, the front body 110, and the substrate can be independently manufactured.

That is, during the manufacturing process of the camera module 100, the lens assembly 160, the front body 110, and the substrate may be independently manufactured first, and the rear body 120 is then combined with the assembly. The manufacturing of the camera module 100 may be completed by adding only the task to be performed.

Therefore, the operation of independently manufacturing an assembly in which the lens assembly 160, the front body 110, and the substrates are combined into one, and the rear body 120 in the assembly without the need to simultaneously proceed with the manufacturing operation of the camera module 100 in one workshop Since it is possible to independently perform the operation of combining the components in an independent place, the freedom and efficiency of the manufacturing operation can be improved, and the number of parts to be managed during the manufacturing process is reduced, thereby making manufacturing management easier.

[Method of manufacturing camera module]

7 is a flowchart showing a method of manufacturing a camera module according to the first embodiment of the present invention.

Hereinafter, a method of manufacturing a camera module according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 7.

3 and 7, in order to manufacture the camera module 100, the first body part 111 and the second body part 121 are first formed (S10 and S20). The first body part 111 and the second body part 121 may be formed using molten aluminum. In addition, the first body portion 111 and the second body portion 121 formed as described above may be formed of a material having higher thermal conductivity than the first coupling portion 113 and the second coupling portion 123.

The first body part 111 and the second body part 121 molded in this way may first undergo a surface treatment step before insert injection (S30). In the surface treatment step, the outer surfaces of the first body part 111 and the second body part 121 are oxidized so that fine grooves are formed on the outer surfaces of the first body part 111 and the second body part 121. It can be made in the form of

Then, the front body 110 is molded by injecting the first coupling part 113 to be integrated with the first body part 111 (S40), and a second coupling to be integrated with the second body part 121 The part 123 is injected to form the rear body 120 (S50).

At this time, the first coupling portion 113 and the second coupling portion 123 are formed of an injectable resin material, of which the first coupling portion 113 is formed of a material capable of laser transmission, and the second coupling portion 123 Is formed of a material capable of absorbing laser.

In addition, the first coupling portion 113 and the second coupling portion 123 are formed to protrude laterally outward than the first body portion 111. That is, the first coupling portion 113 and the second coupling portion 123 are formed in a shape protruding laterally outward than the first body portion 111 when viewed from the front.

As another example, the first coupling portion 113 may be formed of a material capable of absorbing laser, and the second coupling portion 123 may be formed of a material capable of transmitting laser. In this case, the first coupling portion 113 and the second coupling portion 123 are preferably formed in a shape protruding laterally outward than the second body portion 121 when viewed from the rear.

The front body 110 may be molded in an insert injection form in which the first coupling part 113 is injection-molded with the first body part 111 having a surface treatment surface inserted therein. At this time, since the injection is made in a state in which the resin has penetrated into the grooves formed on the outer surface of the first body part 111, the front body in which the first body part 111 and the first coupling part 113 are integrated with strong bonding force ( 110) can be formed.

In addition, the rear body 120 may be molded in an insert injection form in which the second coupling part 123 is injection-molded with the second body part 121 having a surface-treated surface inserted therein. At this time, since injection is made in a state in which the resin has penetrated into the grooves formed on the outer surface of the second body part 121, the second body part 121 and the second coupling part 123 are integrated with a strong bonding force ( 120) can be formed.

When the molding of the front body 110 and the rear body 120 is completed, respectively, the substrates are fixed to at least one of the front body 110 and the rear body 120 (S60). In this embodiment, both the first substrate 130 and the second substrate 140 are fixed to the front body 110, and the first substrate 130 and the second substrate 140 are connected by the connection substrate 150. It is illustrated as being electrically connected.

According to this, first, the front body 110 and the first substrate 130 are coupled to each other, and then the front body 110 and the second substrate 140 are coupled.

The coupling between the front body 110 and the first substrate 130 is performed with the rear end of the first body 111 and the first substrate 130 in close contact with the rear end of the first body 111. One may be formed in a form of bonding between the front surfaces of the substrate 130 with an insulating agent. At this time, the first support boss 115 may penetrate the first substrate 130 through a through hole formed at a corner of the first substrate 130 and protrude toward the rear side of the first substrate 130.

The coupling between the front body 110 and the second substrate 140 is a second substrate at the rear end of the first support boss 115 in a state in which the front body 110 and the first substrate 130 are coupled. After facing the front surface of the 140, the first support boss 115 and the second substrate 140 may be coupled with a screw.

In addition, when the connection substrates 150 are respectively connected to each other so that the first substrate 130 and the second substrate 140 are electrically connected to each other on the side of the first substrate 130 and the second substrate 140, the front body The work of fixing the first substrate 130 and the second substrate 140 to 110 is completed.

According to the substrate installation method as described above, the lens assembly 160 by fixing all of the lens assembly 160, the first substrate 130, the second substrate 140, and the connection substrate 150 to the front body 110. And it is possible to independently manufacture a combination of the front body 110 and the substrates are combined into one.

That is, in the manufacturing process of the camera module 100, since the lens assembly 160, the front body 110, and the substrate can be independently manufactured first, the combination of which is combined into one can be independently manufactured, so that the freedom and efficiency of manufacturing operations can be improved, As the number of parts to be managed in the manufacturing process is reduced, manufacturing management can be made easier.

When the substrate is installed as described above, the front body 110 and the rear body 120 are brought into close contact with each other so that the substrates are inserted into the receiving space S inside the rear body 120. Then, by fusion bonding the first coupling portion 113 of the front body 110 and the second coupling portion 123 of the rear body 120 in a first direction, that is, in the front-rear direction, the front body 110 and the rear body The process of combining 120 in the front-rear direction proceeds (S70).

This fusion bonding step may be performed by laser welding. To this end, first, the first coupling portion 113 and the second coupling portion 123 are butted in the front-rear direction so that the fitting coupling between the first coupling portion 113 and the second coupling portion 123 is achieved. At this time, the protrusion 124 protruding from the second coupling portion 123 is fitted into the concave groove 114 formed concave in the first coupling portion 113, and thus the first coupling portion 113 and the second coupling The fitting between the parts 123 is made.

Before the first coupling portion 113 and the second coupling portion 123 are fused by the fitting coupling between the first coupling portion 113 and the second coupling portion 123 made as described above, the first coupling portion 113 ) And the second coupling part 123 may be temporarily fixed, and also the first coupling part 113 and the second coupling for fusion work between the first coupling part 113 and the second coupling part 123 Position guidance of the unit 123 can be made.

In this way, in a state in which the first coupling portion 113 and the second coupling portion 123 are fitted in the front-rear direction, by irradiating the laser toward the first coupling portion 113 and the second coupling portion 123 , So that the fusion between the first coupling portion 113 and the second coupling portion 123 can be made.

The fusion bonding between the first coupling portion 113 and the second coupling portion 123 is performed while pressing the first coupling portion 113 and the second coupling portion 123 in a direction close to each other, as shown in FIG. 8. It is made by irradiating a laser beam from the front toward the first coupling portion 113 and the second coupling portion 123.

In this process, the laser beam may be particularly intensively irradiated toward the protrusion 124, and accordingly, the protrusion 124 is melted by the irradiated laser beam and the first coupling part 113 inside the concave groove 114 Can be fused with.

At this time, the protrusion 124 may be melted within the concave groove 114 by a length corresponding to the difference in the depth of the concave groove 114 and the length of the protrusion 124, and thus the molten portion of the protrusion 124 While filling the gap between the 124 and the concave groove 114, the fusion bonding between the first coupling portion 113 and the second coupling portion 123 may be made more tightly. And as the length of the protrusion 124 is shortened by the melted portion of the protrusion 124, the protrusion 124 and the concave groove 114 may be fitted so that the protrusion 124 and the concave groove 114 are completely engaged. have.

As another example, the first coupling portion 113 is formed of a material capable of absorbing laser, and the second coupling portion 123 is formed of a material capable of laser transmission, and the first coupling portion 113 and the second coupling portion ( 123) may be formed. At this time, when viewed from the rear, the first coupling portion 113 and the second coupling portion 123 may be formed to protrude further outward in the lateral direction than the second body portion 121.

In this case, in order to fuse the first coupling portion 113 and the second coupling portion 123, from the rear of the first coupling portion 113 and the second coupling portion 123, toward the second coupling portion 123 The laser is irradiated. The laser irradiated toward the second coupling part 123 reaches the first coupling part 113 after passing through the second coupling part 123, and thus a part of the first coupling part 113 absorbing the laser The melted and then solidified, and the first coupling portion 113 and the second coupling portion 123 are fused to each other, so that the first coupling portion 113 and the second coupling portion 123 may be bonded.

The bonding between the front body 110 and the rear body 120 is achieved by fusion bonding between the first coupling part 113 and the second coupling part 123 made as described above, thereby making the manufacture of the camera module 100 Can be done.

The receiving space (S) inside the camera module 100 manufactured as described above is sealed by fusion between the first coupling part 113 and the second coupling part 123. At this time, since the coupling portion between the first coupling portion 113 and the second coupling portion 123 is not formed in a linear shape but is bent in a "c" shape, the first coupling portion 113 and the second coupling portion ( 123) are coupled with each other by a strong bonding force, and sealing performance at a bonding portion between the first coupling portion 113 and the second coupling portion 123 can be further improved.

Accordingly, the receiving space S formed inside the camera module 100 can be more effectively sealed, thereby securing watertightness for various components such as the lens assembly 160 or substrates installed inside the receiving space S. It becomes easier.

In addition, the substrates installed in the receiving space (S) are installed in an area surrounded by the second body portion 121 formed of aluminum material having high thermal conductivity, and the lens assembly 160 is also formed of aluminum material having high thermal conductivity. It is installed on the body part 111.

Therefore, heat generated from the substrates and the lens assembly 160 can be easily radiated through the first body part 111 and the second body part 121 formed of a metal material having high thermal conductivity, thereby The camera module 100 can provide both waterproof performance and heat dissipation performance in an improved form.

In addition, since the camera module 100 of the present embodiment is provided to independently first manufacture a combination of the lens assembly 160, the front body 110, and the substrates into one, the freedom of manufacturing operation and the efficiency of manufacturing management are improved. Can be improved.

The camera module 100 of this embodiment has high structural stability and watertightness, and can reduce the number of parts and processes, and thus can be provided as a reliable product at a low cost.

[Structure of camera module according to the second embodiment of the present invention]

9 is a perspective view showing a camera module according to a second embodiment of the present invention, FIG. 10 is an exploded perspective view showing a partial configuration of the camera module shown in FIG. 9 by separating, and FIG. 11 is "" in FIG. It is a cross-sectional view along the line XI-XI"".

9 to 11, the camera module 200 according to the second embodiment of the present invention includes a front body 210 and a rear body 220, similar to the camera module exemplified in the above-described embodiment. do.

The front body 210 and the rear body 220 of the present embodiment further include mounting portions 217 and 227, respectively. That is, the front body 210 further includes a first mounting portion 217, and the rear body 220 further includes a second mounting portion 227. Hereinafter, this will be described in more detail.

The front body 210 may include a first body part 111, a first coupling part 113, and a first mounting part 217. The first mounting portion 217 is formed integrally with the first body portion 111 and the first coupling portion 113, and is formed of a material different from the first body portion 111.

In this embodiment, it is illustrated that the first mounting portion 217 is formed of the same resin material as the first coupling portion 113. Accordingly, the front body 210 may be molded in a form in which the first body part 111, the first coupling part 113, and the first mounting part 217 are insert-injected. That is, the first body part 111 formed of aluminum is inserted into the resin for molding the first coupling part 113 and the first mounting part 217, and the first coupling part 113 and the first mounting part 217 ) By injection molding, it is possible to manufacture the front body 210 in which the first body part 111, the first coupling part 113, and the first mounting part 217 are integrally formed.

In the front body 210, the first mounting portion 217 may be disposed at a portion where a shape portion for insertion, coupling, and seating of the lens assembly 160 is to be formed. In the front body 210, the shape portion for insertion, coupling, and seating of the lens assembly 160 is bound to have a more complex shape than other portions of the front body 210.

In a structure in which such a shape part is formed on the first body part 111, a complicated shape for insertion, coupling, and seating of the lens assembly 160 must be formed on the first body part 111 made of a metal material. However, the operation of forming a shape part of a complex shape on a metal structure is difficult and costly compared to an injection molding method using a resin material, and it is difficult to form an accurate shape.

On the other hand, when a complex shape for insertion, coupling, and seating of the lens assembly 160 is formed of a resin material, molding of such a shape part is easier at a lower cost due to the characteristics of a resin material having good moldability compared to metal. Not only can this be achieved, but it is also possible to express a more accurate and precise shape.

In consideration of these points, in this embodiment, a shape part for insertion, coupling, and seating of the lens assembly 160 is formed on the first mounting part 217, and the first mounting part 217 is formed by injection molding of a resin material. do. According to this, the first coupling part 113 and the first mounting part 217 are molded together at the same time in a single insert injection operation, whereby the first body part 111 and the first coupling part in one insert injection operation The front body 210 in which the 113 and the first mounting portion 217 are integrally formed may be manufactured.

That is, by molding the part to be formed of a complex shape with the first coupling part 113 without necessarily being formed of a metal material by injection molding, the manufacturing cost is reduced while the manufacturing cost is reduced and the manufacturing is high. It is possible to provide an easy camera module 200.

Meanwhile, the rear body 220 may include a second body part 121, a second coupling part 123, and a second mounting part 227. The second mounting portion 227 is formed integrally with the second body portion 121 and the second coupling portion 123, and is formed of a material different from the second body portion 121.

In this embodiment, it is illustrated that the second mounting portion 227 is formed of the same resin material as the second coupling portion 123. Accordingly, the rear body 220 may be molded in a form in which the second body portion 121, the second coupling portion 123, and the second mounting portion 227 are insert-injected. That is, the second coupling portion 123 and the second mounting portion 227 in a state in which the second body portion 121 formed of aluminum is inserted into the resin for molding the second coupling portion 123 and the second mounting portion 227. ) By injection molding, it is possible to manufacture the rear body 220 in which the second body portion 121, the second coupling portion 123, and the second mounting portion 227 are integrally formed.

In the rear body 220, the second mounting portion 227 may be disposed at a portion where a shape portion for coupling between the wiring receptor 170 installed on the rear side of the rear body 220 and the rear body 220 is to be formed. have. In the rear body 220, a shape portion for coupling between the wiring receptor 170 and the rear body 220 is bound to have a more complex shape than other portions of the rear body 220.

In consideration of this point, in this embodiment, a shape part for coupling between the wiring receptor 170 and the rear body 220 is formed on the second mounting part 227, and the second mounting part 227 is injection-molded of a resin material. Formed by According to this, the second coupling portion 123 and the second mounting portion 227 are molded together at the same time in a single insert injection operation, whereby the second body portion 121 and the second coupling portion are performed in one insert injection operation. The rear body 220 in which the 123 and the second mounting portion 227 are integrally formed may be manufactured.

That is, by molding the part to be formed of a complex shape with the second coupling part 123 without necessarily being formed of a metal material by injection molding, the manufacturing cost is reduced while the manufacturing cost is reduced and the manufacturing is high. It is possible to provide an easy camera module 200.

[Structure of camera module according to the third embodiment of the present invention]

12 is a cross-sectional view showing the configuration of a camera module according to a third embodiment of the present invention.

Referring to FIG. 12, a camera module 300 according to a third embodiment of the present invention includes a front body 210, a rear body 220, a first substrate 330, and a second substrate 340. I can. The difference between the camera module 300 and the camera modules exemplified in the above-described embodiment is in the first substrate 330 and the second substrate 340.

The first substrate 330 is provided in a shape similar to the first substrate exemplified in the first and second embodiments of the present invention. The first substrate 330 of this embodiment includes a first connector 335, which is a difference between the first substrate 330 of the present embodiment and the first substrates exemplified in the above-described embodiment.

The first connector 335 is provided on the first substrate 330, and is provided on the rear side of the first substrate 330 facing the second substrate 340. The first connector 335 is provided to protrude from the rear surface of the first substrate 330 to the rear, and is electrically connected to the first substrate 330.

The second substrate 340 is also provided in a shape similar to the second substrate exemplified in the first and second embodiments of the present invention. The second substrate 340 of this embodiment includes a second connector 345, which is a difference between the second substrate 340 of this embodiment and the second substrates exemplified in the above-described embodiment.

The second connector 345 is provided on the second substrate 340, and is provided on the front side of the second substrate 340 facing the first substrate 330. The second connector 345 is provided to protrude forward from the front surface of the second substrate 340 and is electrically connected to the second substrate 340.

The first connector 335 and the second connector 345 are provided for electrical connection between the first substrate 330 and the second substrate 340. That is, in the above-described embodiments, unlike the connection substrate used for the electrical connection between the first substrate and the second substrate, in this embodiment, the electrical connection between the first substrate 330 and the second substrate 340 is For this purpose, the first connector 335 and the second connector 345 are used.

The first connector 335 and the second connector 345 may be physically coupled to each other, and may be electrically connected when the physical coupling is established. That is, by coupling between the first connector 335 and the second connector 345 and electrical connection made accordingly, an electrical connection between the first substrate 330 and the second substrate 340 can be made.

Hereinafter, the installation structure of the first substrate 330 and the second substrate 340 will be described.

The first substrate 330 is coupled to the front body 210, more specifically, to the rear end of the first body 111 in the same manner as the first substrate exemplified in the above-described embodiments. In this case, the rear ends of the first substrate 330 and the first body part 111 may be bonded with an insulating agent.

The second substrate 340 is coupled to the rear body 220 rather than the front body 210. This point is another difference between the second substrate 340 of the present embodiment and the second substrates exemplified in the above-described embodiments. That is, the camera module 300 of the present embodiment has a substrate mounting structure in which the first substrate 330 is fixed to the front body 210 and the second substrate 340 is fixed to the rear body 220.

To this end, the rear body 220 is provided with a support boss, more specifically, a second support boss 329. The second support boss 329 may be provided on the rear body 220, but may be provided on a mounting portion provided at the rear of the rear body 220, that is, the second mounting portion 227.

The second support boss portion 329 is formed to protrude forward from the second mounting portion 227 and may be formed in a cylindrical shape having a length extending in the front-rear direction. And the second support boss portion 329 has a hollow extending along the longitudinal direction of the second support boss portion 329, and the inside of the second support boss portion 329 formed with a hollow screw for screwing Structures can be formed.

The second substrate 340 may be abutted to the rear end of the second support boss 329 formed as described above. And the second support boss portion 329 and the second substrate 340 butted in this way may be coupled by a screw, and the second substrate 340 is coupled to the rear body 220 and accommodated through this coupling. It can be fixed inside the space.

In this embodiment, four second support boss portions 329 are provided on the rear body 220, and accordingly, four corner portions of the second substrate 340 are combined with the second support boss portions 329, respectively. It is illustrated that it is supported by the second support boss part 329. In such an arrangement form of the second support boss 329, while allowing easy and safe coupling between the second support boss 329 and the second substrate 340 through the edge of the substrate on which no circuit is formed, There is an advantage of increasing the stability of supporting the substrate.

As an example, the second support boss 329 may be formed of the same material as the second mounting part 227 and integrally injected with the second mounting part 227. As another example, the second support boss portion 329 may be formed of the same material as the second body portion 121 and formed integrally with the second body portion 121.

When the second support boss 329 is formed of the same material as the second mounting part 227, it can be injected integrally with the second mounting part 227, so that the molding of the second support boss 329 is more inexpensive. It can be made easily at a cost, and there is an advantage in maintaining insulation between the second substrate 340 and the second support boss 329.

Unlike this, when the second support boss 329 is formed of the same material as the second body 121, the second support boss 329 can support the second substrate 340 more stably. There is an advantage of securing strength.

In the camera module 300 of the present embodiment, a unit of an assembly in which the first substrate 330 is coupled to the front body 210 (hereinafter referred to as “front body assembly”) and a second substrate (in the rear body 220) Another unit to which 340 is bonded (hereinafter referred to as “rear body assembly”) may be provided in a combined form.

That is, a front body assembly in which the lens assembly 160, the front body 210, and the first substrate 330 are combined into one, and the wiring receptor 170, the rear body 220, and the second substrate 340 are combined into one. The rear body assembly may be independently manufactured, and manufacturing of the camera module 300 may be completed by adding only the operation of combining these independently manufactured combinations.

The operation of combining the two conjugates may be performed in the following manner.

First, in a state in which the front body assembly is disposed in the front and the rear body assembly is disposed in the rear, the two assemblies are pressed in a direction in which the two assemblies are in close contact with each other. Accordingly, a coupling between the first connector 335 and the second connector 345 is made in the interior of the two coupling bodies, whereby the electrical connection between the first connector 335 and the second connector 345 and thus the first substrate Electrical connection between 330 and the second substrate 340 is made.

That is, without the need to add the work of connecting the first substrate 330 and the second substrate 340 with a connection substrate, the electrical connection between the two substrates can be easily and quickly completed by simply attaching the front body assembly and the rear body assembly. You can make it.

In addition, outside of the two coupling bodies, the first coupling portion 113 and the second coupling portion 123 are in close contact with each other, and a coupling between the first coupling portion 113 and the second coupling portion 123 to be butted is made.

In this state, when the laser is irradiated toward the first coupling portion 113 and the second coupling portion 123, the first coupling portion 113 and the second coupling portion 123 are fused to each other and the front body 210 The coupling between the rear body 220 and the rear body 220 is made, whereby the manufacturing of the camera module 300 may be completed.

The receiving space (S) inside the camera module 300 manufactured as described above is sealed by fusion between the first coupling part 113 and the second coupling part 123, and thus, the lens assembly 160 or the substrates Watertightness for various parts can be secured.

In addition, the substrates 330 and 340 installed inside the receiving space S are installed in an area surrounded by the second body portion 121 formed of aluminum having high thermal conductivity, and the lens assembly 160 is also formed of aluminum having high thermal conductivity. It is installed on the first body part 111 formed of a material.

Therefore, heat generated from the substrates 330 and 340 and the lens assembly 160 can be easily discharged through the first body part 111 and the second body part 121 formed of a metal material having high thermal conductivity, thereby The camera module 300 according to the present exemplary embodiment can provide both waterproof performance and heat dissipation performance in an improved form.

In addition, the camera module 300 according to the present embodiment is provided so that the entire components constituting the camera module 300 can be provided in a simplified state as two assemblies, as well as a simple combination of the front body assembly and the rear body assembly. Since it is provided so that the internal electrical connection can be completed easily and quickly with only work, not only manufacturing is easy, but also the freedom of manufacturing operation and the efficiency of manufacturing management can be improved.

[Structure of camera module according to the fourth embodiment of the present invention]

13 is an exploded perspective view showing a camera module according to a fourth embodiment of the present invention, and FIG. 14 is a cross-sectional view showing the configuration of the camera module shown in FIG. 13.

13 and 14, the camera module 400 according to the fourth embodiment of the present invention may include a front body 410 and a rear body 120. The difference between the camera module 400 and the camera modules illustrated in the above-described embodiment is in the front body 410.

The front body 410 includes a first body portion 411 and a first coupling portion 113 integrally formed with the first body portion 411. The first body part 411 and the first coupling part 113 that are integrally molded in this way are formed of the same material. In this embodiment, it is illustrated that the first body part 411 and the first coupling part 113 are formed of a resin material. Accordingly, the first body portion 411 and the first coupling portion 113 may be formed of a resin material capable of injection molding, and the front body 410 may include the first body portion 411 and the first coupling portion 113. May be provided in an integrally injection molded form.

According to the camera module 400 of the present embodiment including the front body 410 formed as described above, the front body 410 can be manufactured in a single injection molding operation, so that the manufacturing process and manufacturing cost can be reduced.

In addition, since the entire front body 410 is formed of a resin material that is relatively lighter and cheaper than aluminum, it is possible to provide a lighter camera module 400 as well as lower the manufacturing cost of the camera module 400.

[Structure of camera module according to the fifth embodiment of the present invention]

15 is an exploded perspective view showing a camera module according to a fifth embodiment of the present invention, and FIG. 16 is a cross-sectional view showing the configuration of the camera module shown in FIG. 15.

15 and 16, the camera module 500 according to the fifth embodiment of the present invention may include a front body 110 and a rear body 520. The difference between the camera module 500 and the camera modules illustrated in the above-described embodiment is in the rear body 520.

The rear body 520 includes a second body portion 521 and a second coupling portion 123 integrally formed with the second body portion 521. The second body portion 521 and the second coupling portion 123 that are integrally molded in this way are formed of the same material. In this embodiment, it is exemplified that the second body part 521 and the second coupling part 123 are formed of a resin material. Accordingly, the second body portion 521 and the second coupling portion 123 may be formed of a resin material capable of injection molding, and the rear body 520 may include the second body portion 521 and the second coupling portion 123. May be provided in an integrally injection molded form.

According to the camera module 500 of the present embodiment including the rear body 520 formed as described above, since the rear body 520 can be manufactured in a single injection molding operation, a manufacturing process and manufacturing cost can be reduced.

In addition, since the entire rear body 520 is formed of a resin material that is relatively light and inexpensive compared to aluminum, it is possible to provide a lighter camera module 500 and to lower the manufacturing cost of the camera module 200.

[Structure of camera module according to the sixth embodiment of the present invention]

17 is an exploded perspective view showing a camera module according to a sixth embodiment of the present invention, FIG. 18 is a cross-sectional view showing the configuration of the camera module shown in FIG. 17, and FIG. 19 is an exploded perspective view showing the camera module according to the sixth embodiment of the present invention. It is a view showing the fusing operation between the first coupling portion and the second coupling portion of the camera module.

17 and 18, the camera module 600 according to the sixth embodiment of the present invention may include a front body 610 and a rear body 620.

The configuration of the front body 610 is mostly similar to the configuration of the front body 410 (see FIG. 14) of the camera module 400 (see FIG. 14) according to the fourth embodiment of the present invention.

In addition, the configuration of the rear body 620 is mostly similar to the configuration of the rear body 120 (see FIG. 14) of the camera module 400 according to the fourth embodiment of the present invention.

The difference between the camera module 600 and the camera module 400 according to the fourth embodiment of the present invention is that the second coupling portion 623 is formed to protrude in the side outward direction of the second body portion 621 to be. That is, when viewed from the rear, the second coupling portion 623 is disposed outside the second body portion 621 in the lateral direction and is formed to protrude outward in the lateral direction of the second body portion 621.

In addition, the first coupling portion 613 is also formed to protrude outward from the second body portion 621 when viewed from the rear. When the front body 610 and the rear body 620 are abutted in the front and rear direction, the first coupling portion 613 may be formed in a shape that can be abutted with the second coupling portion 623.

In this embodiment, the first coupling portion 613 is exemplified as being formed in a shape that does not protrude outward of the first body portion 611. Accordingly, when viewed from the rear, the first body portion 611 is formed in a shape that protrudes more in a second direction than the second body portion 621, that is, in the vertical, left and right directions.

The first coupling portion 613 and the second coupling portion 623 may be coupled to each other by being fused by a laser in a state that is butted in the first direction, that is, in the front-rear direction.

To this end, in this embodiment, it is exemplified that the second coupling portion 623 is formed of a material capable of laser transmission, and the first coupling portion 613 is formed of a material capable of absorbing laser.

In this embodiment, the fusion bonding between the first coupling portion 613 and the second coupling portion 623 is performed by bringing the first coupling portion 613 and the second coupling portion 623 close to each other, as shown in FIG. 19. While pressing in the direction, the laser welding device (L) irradiates the laser beam, but the laser beam is irradiated toward the first coupling portion 613 and the second coupling portion 623 from the rear.

That is, in order to fuse the first coupling portion 613 and the second coupling portion 623, the laser beam toward the second coupling portion 623 from the rear of the first coupling portion 613 and the second coupling portion 623 This is investigated. The laser beam irradiated toward the second coupling portion 623 passes through the second coupling portion 623 and then reaches the first coupling portion 613. Accordingly, the first coupling portion 613 absorbing the laser A portion is melted and then solidified, and the first coupling portion 613 and the second coupling portion 623 are fused to each other, so that the first coupling portion 613 and the second coupling portion 623 may be bonded.

[Structure of camera module according to the seventh embodiment of the present invention]

20 is an exploded perspective view showing a camera module according to a seventh embodiment of the present invention, and FIG. 21 is a cross-sectional view showing the configuration of the camera module shown in FIG. 20.

Referring to FIGS. 20 and 21, the camera module 700 according to the seventh embodiment of the present invention may include a front body 710 and a rear body 720.

The configuration of the front body 710 is mostly similar to the configuration of the front body 110 (see FIG. 16) of the camera module 500 (see FIG. 16) according to the fifth embodiment of the present invention.

In addition, the configuration of the rear body 720 is mostly similar to the configuration of the rear body 520 (see FIG. 16) of the camera module 500 according to the fifth embodiment of the present invention.

The difference between the camera module 700 and the camera module 500 according to the fifth embodiment of the present invention is that the second coupling portion 723 is formed so as to protrude outward from the side of the second body portion 721. to be. That is, when viewed from the rear, the second coupling portion 723 is disposed outside the second body portion 721 in the lateral direction and is formed to protrude outward in the lateral direction of the second body portion 721.

In addition, the first coupling portion 713 is also formed to protrude outward from the second body portion 721 when viewed from the rear. When the front body 710 and the rear body 720 are butted in the front-rear direction, the first coupling part 713 may be formed in a shape capable of being abutted with the second coupling part 723.

In this embodiment, the first coupling portion 713 is illustrated as being formed in a shape that does not protrude outward of the first body portion 711. Accordingly, when viewed from the rear, the first body portion 711 is formed in a shape that protrudes more in a second direction than the second body portion 721, that is, in the vertical, left and right directions.

The first coupling portion 713 and the second coupling portion 723 may be coupled to each other by being fused by a laser in a state that is butted in the first direction, that is, in the front-rear direction.

To this end, in this embodiment, it is exemplified that the second coupling portion 723 is formed of a material capable of laser transmission and the first coupling portion 713 is formed of a material capable of absorbing laser.

In this embodiment, fusion bonding between the first coupling portion 713 and the second coupling portion 723 is similar to the sixth embodiment of the present invention, the first coupling portion 713 and the second coupling portion 723 It is made in a method of irradiating a laser toward the first coupling portion 713 and the second coupling portion 723 from the rear while pressing in a direction close to each other.

That is, in order to fuse the first coupling portion 713 and the second coupling portion 723, a laser is applied from the rear of the first coupling portion 713 and the second coupling portion 723 toward the second coupling portion 723. Is investigated. The laser irradiated toward the second coupling part 723 reaches the first coupling part 713 after passing through the second coupling part 723, and thus a part of the first coupling part 713 absorbing the laser The melted and then solidified, and the first coupling portion 713 and the second coupling portion 723 are fused to each other, so that the first coupling portion 713 and the second coupling portion 723 may be bonded.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only illustrative, and those of ordinary skill in the field to which the technology pertains, various modifications and other equivalent embodiments are possible. I will understand. Therefore, the true technical protection scope of the present invention should be determined by the following claims.

100,200,300,400,500,600,700: Camera module
110,210,: front body
111: first body part
111a: Section 1
111b: Section 2
113: first coupling portion
114: concave groove
115: first support boss
120,220: rear body
121: second body part
123: second coupling portion
124: protrusion
130,330: first substrate
140,340: second substrate
150: connection board
160: lens assembly
170: wiring receptor
217: first mounting part
227: second mounting part
329: second support boss
335: first connector
345: second connector
S: accommodation space
P1: circuit forming part
P2: Circuit unformed part
a: intergranular surface

Claims (11)

A first body part molding step of molding the first body part on which the lens is installed;
A second body part forming step of forming a second body part having an accommodation space opened in the first direction therein;
A front body forming step of forming a front body by combining a first coupling portion so as to be integral with the first body portion;
A rear body shaping step of forming a rear body having the receiving space formed therein by combining a second coupling portion so as to be integral with the second body portion; And
Including; a fusion bonding step of bonding the front body and the rear body in the first direction by fusion bonding the first coupling portion and the second coupling portion in the first direction,
The method of manufacturing a camera module in which the second coupling part protrudes outward from the second body part.
The method of claim 1,
The front body molding step includes insert-injecting the first body part and the first coupling part.
The method of claim 1,
The method of manufacturing a camera module, wherein the first body portion and the second body portion are formed of a material having higher thermal conductivity than the first coupling portion and the second coupling portion.
The method of claim 3,
The first body part and the second body part are formed of an aluminum material.
The method of claim 3,
A surface treatment step of forming a surface treatment surface on at least one of the first body part and the second body part by surface-treating at least one of the first body part and the second body part,
At least one of the step of molding the front body and the step of molding the rear body may be performed by insert injection in a state in which the first body part or the second body part on which the surface treatment surface is formed is inserted, and the front body or the Camera module manufacturing method for forming the rear body.
The method of claim 5,
The surface treatment step is a camera module manufacturing method of oxidizing the outer surface of the first body part or the second body part so that fine grooves are formed on the outer surface of the first body part or the second body part.
The method of claim 1,
Any one of the first coupling portion and the second coupling portion is formed of a material capable of laser transmission,
The other of the second coupling portion and the second coupling portion is formed of a material capable of absorbing laser,
In the fusion bonding step, the first coupling portion and the second coupling portion are irradiated with a laser toward the first coupling portion and the second coupling portion while the first coupling portion and the second coupling portion are butted to each other along the first direction. Camera module manufacturing method for fusing the second coupling portion.
The method of claim 7,
The first coupling portion is formed of a material capable of laser transmission,
The second coupling portion is formed of a material capable of absorbing laser,
In the fusion bonding step, a camera module manufacturing method of irradiating a laser from one side in the first direction toward the first coupling portion so that the laser penetrates the first coupling portion and reaches the second coupling portion.
The method of claim 7,
The first coupling portion is formed of a material capable of absorbing laser,
The second coupling portion is formed of a material capable of laser transmission,
The fusion bonding step is a camera module manufacturing method of irradiating a laser from the other side in the first direction toward the second coupling portion so that the laser penetrates the second coupling portion and reaches the first coupling portion.
The method according to claim 8 or 9,
Any one of the first coupling portion and the second coupling portion is provided with a protrusion protruding toward the other of the first coupling portion and the second coupling portion,
In the other of the first coupling portion and the second coupling portion, a concave groove formed in a shape corresponding to the shape of the protrusion is provided,
The protrusion is inserted into the concave groove to form a fitting coupling between the first coupling portion and the second coupling portion,
In the fusion bonding step, irradiating a laser toward the protrusion from one side in the first direction to fuse the protrusion to the first coupling portion, or irradiating a laser toward the protrusion from the other side in the first direction to the protrusion. A method of manufacturing a camera module by fusing the second coupling part.
The method of claim 10,
The protrusion is formed to have a length longer than the depth of the concave groove,
In the fusion bonding step, while pressing the front body and the rear body in a direction close to each other, a laser is irradiated toward the protrusion to melt the longitudinal end of the protrusion,
A method of manufacturing a camera module in which a longitudinal end of the molten protrusion is fused with the first coupling portion or the second coupling portion in the concave groove to form fusion bonding between the first coupling portion and the second coupling portion.

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