KR20170123174A - Receptacle Connector and Method for Manufacturing Receptacle Connector - Google Patents

Abstract

The invention relates to a receptacle connector and a method for manufacturing the receptacle connector. The receptacle connector includes a contact mounted on a substrate for electrical connection between a plug connector and the substrate, an insulating part where a plurality of the contacts are installed, a shell including an insertion groove into which the plug connector is inserted, and a waterproof part which is formed on the inner side of the shell so as to be located in the insertion groove and seals a gap between the inner surface of the shell and the outer surface of the insulating part. The receptacle connector can prevent the deterioration of connection performance with respect to the plug connector.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a receptacle connector and a receptacle connector,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receptacle connector and a method of manufacturing a receptacle connector which are installed in an electronic apparatus for connection with a plug connector.

Generally, a receptacle connector is coupled to a board provided in various electronic devices for connection with a corresponding plug connector. For example, the receptacle connector can be installed in an electronic device such as a portable computer, a mobile phone, etc., and can be used to perform a charging function, a data transfer function, and the like.

Recently, electronic devices such as portable computers and mobile phones have been required to be miniaturized while having a waterproof function. As a result, development of a receptacle connector having a waterproof function with a compact structure is actively under way.

1 is a schematic cross-sectional view of a receptacle connector according to the prior art.

1, a receptacle connector 10 according to the prior art includes a plurality of contacts 11 connected to a plug connector, an insulating part 12 provided with the contacts 11, A shell 13, and a waterproof portion 14 for implementing a waterproof function.

One side of each of the contacts 11 is mounted on a substrate. Accordingly, when the plug connector is connected to the other side of each of the contacts 11, the substrate and the plug connector are electrically connected to each other. The contacts 11 are mounted on the insulation part 12 so that one side of the contacts 11 mounted on the substrate is protruded from the rear surface 12a of the insulation part 12.

The insulating portion 12 is installed in the shell 13 so as to be located inside the shell 13. [ The plug connector is inserted into the shell 13 and is electrically connected to the substrate through the contacts 11 by being connected to the other side of the contacts 11 provided on the insulating portion 12. [

The shell 13 supports the insulating portion 12 provided with the contacts 11. The insulator 12 is installed in the shell 13 by being inserted into the shell 13. The plug connector is inserted into the insertion groove 131 of the shell 13 so as to be connected to the contacts 11 provided on the insulating portion 12. [

The waterproof portion 14 prevents moisture from penetrating toward the substrate. The waterproof portion 14 is formed by applying a potting liquid to the rear surface 12a of the insulation portion 12 and then curing the waterproof portion 14 after the insulation portion 12 is installed on the shell 13. [ The potting liquid is applied to cover the bent portion 11a of the portion protruding from the rear surface 12a of the insulating portion 12 in the contact 11 and then hardened to realize the waterproof portion 14. [ The waterproof portion 14 is located on the opposite side of the insertion groove 131 with respect to the insulation portion 12.

Accordingly, the receptacle connector 10 according to the prior art has the following problems.

First, the receptacle connector 10 according to the prior art presses the contacts 11 due to a change in volume or the like in the process of the potting liquid being realized by the waterproofing part 14. As a result, the receptacle connector 10 according to the prior art reduces the flatness of the contacts 11 due to damage, breakage or deformation of the contacts 11, and further deteriorates the connection performance to the plug connector There is a problem.

Secondly, the receptacle connector 10 according to the prior art is hardened after the potting liquid is applied to the section 13a located on the rear surface 12a side of the insulating part 12 in the inner space of the shell 13, (14). The inner side of the shell 13 is provided with a section 13a for accommodating the waterproof portion 14 in addition to the insertion groove 131 and the section 13b where the insulation portion 12 is located do. Accordingly, the receptacle connector 10 according to the related art has a problem in that it is difficult to miniaturize the shell 13 due to an increase in the length 13L of the shell 13.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a plug connector capable of preventing deterioration of the flatness of contacts in the process of implementing a waterproof function, And to provide a method of manufacturing the receptacle connector and the receptacle connector.

The present invention provides a receptacle connector and a method for manufacturing a receptacle connector that can reduce the degree of increase in length of a shell while having a waterproof function.

In order to achieve the above object, the present invention may include the following configuration.

A receptacle connector according to the present invention includes: a contact mounted on a substrate for electrical connection between a plug connector and a substrate; An insulating portion having a plurality of contacts; A shell including an insertion groove into which the plug connector is inserted, the shell having the insulation portion; And a waterproof portion formed on the inner side of the shell so as to be positioned in the insertion groove to seal between the inner surface of the shell and the outer surface of the insulating portion.

A method of manufacturing a receptacle connector according to the present invention includes the steps of inserting an insulator having a plurality of contacts electrically connecting a plug connector and a substrate to the inside of the shell; Applying a potting liquid to the inside of the shell to form a waterproof portion into an insertion groove into which the plug connector is inserted; And curing the potting liquid applied to the inside of the shell so as to be located in the insertion groove.

According to the present invention, the following effects can be achieved.

The present invention is embodied to prevent the positions of the contacts from being changed due to a change in volume or the like during the process of curing the potting liquid for forming the waterproof portion, thereby improving the flatness of the contacts and improving the contact force between the contacts and the substrate It is possible to improve the connection performance between the plug connector and the board.

The present invention is embodied so as to omit a space for accommodating the waterproof portion on the rear side of the insulating portion provided in the shell, thereby reducing the length of the shell and realizing a waterproof function and a compact structure, The applicability can be improved.

1 is a schematic cross-sectional view of a receptacle connector according to the prior art;
2 is a schematic perspective view of a receptacle connector according to the present invention;
3 is a schematic exploded perspective view of a receptacle connector according to the present invention.
4 is a schematic cross-sectional view of the receptacle connector according to the present invention taken along line II of Fig. 2
Fig. 5 is a schematic cross-sectional view of the receptacle connector according to the present invention,
FIGS. 6 and 7 are schematic cross-sectional views showing a state in which the insulating portion is mounted on the shell with reference to the cross-sectional line II in FIG. 2 to explain the process of implementing the waterproof portion in the receptacle connector according to the present invention.
8 is a schematic perspective view of a shell of a receptacle connector according to the present invention;
9 is a schematic perspective view showing a shell of the receptacle connector according to the present invention viewed from a different angle from that of Fig.
10 is a schematic partial bottom view of a shell body in which seams are present
11 is a conceptual diagram for explaining a method of forming a shell in a receptacle connector according to the present invention
12 and 13 are enlarged cross-sectional views taken along line A in Fig. 6 for explaining the shielding member in the receptacle connector according to the present invention. Fig.
14 to 16 are schematic cross-sectional views showing a state in which a sealing member is installed on a shell with reference to a cross-sectional line II in Fig. 2 in the receptacle connector according to the present invention

Hereinafter, embodiments of the receptacle connector according to the present invention will be described in detail with reference to the accompanying drawings.

2 to 4, the receptacle connector 1 according to the present invention is installed in a board (not shown) provided in various electronic apparatuses for connection with a plug connector (not shown). The substrate may be a printed circuit board (PCB).

The receptacle connector 1 according to the present invention includes a contact 2 electrically connecting the plug connector and the substrate, an insulating portion 3 provided with a plurality of the contacts 2, a waterproof portion 4, 4), and a shell 5 provided with the insulation part 3. [0031] As shown in Fig.

The contacts (2) are mounted on the substrate for electrical connection between the plug connector and the substrate. The insulating portion 3 supports the contacts 2. The waterproof portion 4 seals between the inner surface 5a of the shell 5 (shown in Fig. 4) and the outer surface 3a of the insulating portion 3 (shown in Fig. 4) will be. The shell 5 supports the insulating portion 3 provided with the contact 2. The shell 5 includes an insertion groove 51 (shown in Fig. 4) into which the plug connector is inserted. The waterproof portion 4 is formed on the inner side of the shell 5 so as to be positioned in the insertion groove 51 so as to seal between the inner surface 5a of the shell and the outer surface 3a of the insulating portion 3 . That is, the waterproof portion 4 is positioned in the insertion groove 51 to implement a waterproof function.

Thus, the receptacle connector 1 according to the present invention can achieve the following operational effects.

First, the receptacle connector 1 according to the present invention is arranged such that the waterproof portion 4 is located in the insertion groove 51, The waterproof portion 4 is not present. Accordingly, the receptacle connector 1 according to the present invention can prevent the position of the contacts 2 from being changed due to a change in volume or the like during the process of curing the potting liquid for realizing the waterproof portion 4 have. Therefore, the receptacle connector 1 according to the present invention improves the flatness of the contacts 2, thereby increasing the connecting force between the contacts 2 and the substrate, and further, Can be improved.

Secondly, the receptacle connector 1 according to the present invention can realize the waterproof portion 4 by using the insertion groove 51 into which the plug connector is inserted in the inner space of the shell 5. The receptacle connector 1 according to the present invention does not need to have a space for accommodating the waterproof portion 4 on the rear side (in the direction of the arrow BD) of the insulating portion 3 provided in the shell 5 . Therefore, the receptacle connector 1 according to the present invention can be realized in a compact structure while having a waterproof function by reducing the length 5L (shown in FIG. 4) of the shell 5, It is possible to improve the applicability.

Hereinafter, the contact 2, the insulating portion 3, the waterproof portion 4, and the shell 5 will be described in detail with reference to the accompanying drawings.

2 and 3, the contact 2 electrically connects the plug connector and the substrate. The contacts 2 are connected to a plug connector inserted into the shell 5 in a state of being mounted on the board so that the plug connector and the board can be electrically connected. The contact 2 may be formed of a material having electrical conductivity. The contacts (2) are provided in the insulating portion (3). A plurality of the contacts (2) may be provided in the insulating portion (3).

The contacts 2 may each include a connecting member 21 (shown in Fig. 3) and a mounting member 22 (shown in Fig. 3).

The connecting member 21 is intended to be connected to the plug connector. A part of the contacts 2 may be coupled to the insulating portion 3 such that the connecting member 21 is located on one side of the insulating portion 3. [ The remaining part of the contacts 2 may be coupled to the insulating portion 3 such that the connecting member 21 is located on the other surface of the insulating portion 3. [ One surface and the other surface of the insulating portion 3 are opposite to each other. One surface of the insulating portion 3 may be the upper surface of the insulating portion 3. [ The other surface of the insulating portion 3 may be the lower surface of the insulating portion 3. [

The mounting member 22 is mounted on the substrate. The contacts 2 can electrically connect the plug connector and the substrate as the plug connector is connected to the connecting member 21 in a state that the mounting member 22 is mounted on the board. In this case, the plug connector connected to the connecting member 21 may be electrically connected to the substrate through the mounting member 22. [ The contacts 2 may be installed in the insulating portion 3 such that the mounting members 22 are spaced apart from each other along a first axial direction (X-axis direction). The contacts 2 may be accommodated in the insulating portion 3 such that the mounting members 22 are spaced apart from each other along the first axial direction (X-axis direction).

The contacts 2 may each include a connecting member 23 (shown in Fig. 3).

The connecting member 23 connects the connecting member 21 and the mounting member 22. The connecting member 23 is coupled to the connecting member 21 and the mounting member 22 so as to connect the connecting member 21 and the mounting member 22. The connecting member 23 may be positioned between the connecting member 21 and the mounting member 22. [ The contacts 2 of the contacts 2 positioned on the upper surface of the insulating portion 3 may be formed by partially bending the connecting member 23 in the downward direction. Accordingly, the contacts 2 can be coupled to the insulating portion 3 such that the mounting members 22 are located at the same height. The contacts 2 located on the lower surface of the insulation part 3 of the contacts 2 may be formed by partially bending the connection parts 23 in the upward direction. Accordingly, the contacts 2 can be coupled to the insulating portion 3 such that the mounting members 22 are located at the same height. The connecting member 23, the mounting member 22, and the connecting member 21 may be integrally formed.

2 to 4, the insulating portion 3 supports the contacts 2. The contacts 2 may be installed in the insulating portion 3 such that the mounting members 22 are spaced apart from each other along the first axial direction (X-axis direction). The insulating portion 3 may be inserted into the shell 5 so that the connecting members 21 are located inside the shell 5. The insulating portion 3 may be inserted into the shell 5 so that the mounting members 22 are located outside the shell 5. The contacts 2 are positioned such that the connecting members 21 located on the inside of the shell 5 are connected to the plug connector 5 in a state where the mounting members 22 located on the outside of the shell 5 are mounted on the board, The plug connector and the substrate can be electrically connected to each other. The insulating portion 3 may be formed of an insulating material.

The insulating portion 3 may include an insulating member 31.

The insulating member 31 supports the contacts 2. The insulating member 31 forms the overall appearance of the insulating portion 3. A part of the contacts 2 may be provided on the insulating member 31 such that the connecting members 21 are located on the upper surface of the insulating member 31. [ A part of the contacts 2 may be provided on the insulating member 31 such that the connecting members 21 are located on the lower surface of the insulating member 31. [ The contacts 2 may be coupled to the insulating member 31 such that the mounting members 22 are located at the same height. The contacts 2 may be installed in the insulating member 31 through insert molding.

The insulating portion 3 may include a blocking member 32.

The shielding member 32 is for shielding the inner surface 5a of the shell 5 and the outer surface 3a of the insulating portion 3 from each other. The blocking member 32 can block the passage of the potting liquid for realizing the waterproofing portion 4 through the space between the inner surface 5a of the shell 5 and the outer surface 3a of the insulating portion 3 have. The blocking member 32 is inserted into the shell 5. The insulating portion 3 may be inserted into the shell 5 so that the blocking member 32 is inserted into the shell 5. The blocking member 32 may be inserted into the shell 5 and contact the inner surface 5a of the shell 5. [ The outer surface 3a of the blocking member 32 may form the outer surface 3a of the insulating portion 3.

The blocking member 32 may be coupled to the insulating member 31 so as to protrude outward from the insulating member 31. For example, the blocking member 32 may be coupled to the insulating member 31 so as to protrude radially with respect to the insulating member 31. In this case, the blocking member 32 may be coupled to the insulating member 31 so as to protrude from the top, bottom, left, and right sides of the insulating member 31, respectively. The blocking member 32 may be coupled to the insulating member 31 so as to protrude from at least one of an upper surface, a lower surface, a seat surface, and a right surface of the insulating member 31.

The blocking member 32 may be formed to have a size larger than that of the inner surface 5a of the shell 5. Accordingly, when the insulating portion 3 is inserted into the shell 5, the blocking member 32 can be pressed against the inner surface 5a of the shell 5 to be compressed. The shielding member 32 is pressed between the inner surface 5a of the shell 5 and the outer surface 3a of the insulating portion 3 by pressing the inner surface 5a of the shell 5 with restoring force The passage of the potting liquid can be blocked. Accordingly, the receptacle connector 1 according to the present invention has a problem that the waterproof performance is lowered as the potting liquid leaks through the space between the inner surface 5a of the shell 5 and the outer surface 3a of the insulating portion 3 The waterproof performance can be improved.

The blocking member 32 may have a curved outer surface. This prevents the inner surface 5a of the shell 5 from being damaged by the blocking member 32 in the process of inserting the blocking member 32 into the shell 5. Therefore, the receptacle connector 1 according to the present invention can prevent the inner surface 5a of the shell 5 from being damaged by the shielding member 32, thereby achieving excellent waterproof performance. The receptacle connector 1 according to the present invention is arranged between the blocking member 32 and the inner surface 5a of the shell 5 in the process of inserting the blocking member 32 into the shell 5 It is possible to improve the easiness of the operation of inserting and inserting the insulator 3 inside the shell 5 by reducing the frictional force acting thereon.

The blocking member 32 may be integrally formed with the insulating member 31. The blocking member 32 and the insulating member 31 may be separately manufactured and then the blocking member 32 may be coupled to the insulating member 31. [ The blocking member 32 may be formed of the same material as the insulating member 31. The blocking member 32 may be formed of a material different from that of the insulating member 31. In this case, the blocking member 32 may be formed of a material having heat resistance. For example, the blocking member 32 may be formed of silicon (silicon), urethane or the like.

The insulating portion 3 may be installed in the shell 5 such that the blocking member 32 is located rearward (in the direction of the arrow BD) with respect to the insertion groove 51. [ The waterproof portion 4 may be formed inside the shell 5 so as to be located in the insertion groove 51 in the front of the blocking member 32 (in the arrow direction of the FD). Therefore, the receptacle connector 1 according to the present invention is realized such that the waterproof portion 4 does not exist on the rear side (BD arrow direction) side of the blocking member 32 provided in the shell 5, so that the waterproof portion 4 It is possible to prevent the position of the mounting members 22 from being changed due to a change in volume or the like during the process of curing the potting liquid. Accordingly, the receptacle connector 1 according to the present invention can improve the flatness of the mounting members 22, thereby increasing the connecting force between the contacts 2 and the substrate, and further, The connection performance between the substrates can be improved. The receptacle connector 1 according to the present invention does not need to have a space for accommodating the waterproof portion 4 on the rear side (BD arrow direction) side of the shielding member 32 provided in the shell 5. Therefore, the receptacle connector 1 according to the present invention can be realized in a compact structure while having a waterproof function by reducing the length 5L of the shell 5, thereby improving applicability to miniaturized electronic devices . The rear direction (BD arrow direction) and the front direction (FD arrow direction) are directions parallel to and opposite to each other in the second axial direction (Y axis direction). The second axis direction (Y axis direction) is a direction perpendicular to the first axis direction (X axis direction).

2 to 5, the blocking member 32 may include a supporting surface 321 (shown in FIG. 5).

The supporting surface 321 supports the potting liquid for realizing the waterproofing part 4. The supporting surface 321 can support the potting liquid until the potting liquid applied by the insertion groove 51 is cured. The potting liquid applied by the insertion groove 51 may be filled into the entirety of the support surface 321 and then cured to realize the waterproofing part 4. The supporting surface 321 may have a function of supporting the waterproof portion 4 realized by curing the potting liquid. Of the surfaces facing forward (FD arrow direction) in the blocking member 32, the supporting surface 321 is a portion excluding the coupling surface to which the insulating member 31 is coupled.

2 to 5, the blocking member 32 may include a receiving groove 322 (shown in FIG. 5).

The receiving groove 322 accommodates the waterproof portion 4. The receiving groove 322 may be recessed at a predetermined depth from a surface of the blocking member 32 facing forward (in the arrow direction of the FD). Accordingly, the receptacle connector 1 according to the present invention allows the receptacle connector 1 to be further extended through the receiving groove 322 without increasing the length 5L of the shell 5 with respect to the second axial direction (Y-axis direction) The waterproof portion 4 can be realized by using a large amount of the potting liquid. Therefore, the receptacle connector 1 according to the present invention can be realized to have a waterproof performance with a compact structure.

2 to 5, the insulating portion 3 may include a protruding member 33. [

The projecting members (33) support the contacts (2). The protruding member 33 may be coupled to the blocking member 32 so as to protrude rearward from the rear end 32a of the blocking member 32 (in the direction of the arrow BD). The protruding member 33 can support the connecting member 23 of each of the contacts 2. The protruding member 33 can support the connecting member 23 located closer to the mounting member 22 at the contacts 2 to enhance the supporting force with respect to the mounting member 22. [ Therefore, the receptacle connector 1 according to the present invention improves the flatness of the mounting members 22 by using the projecting members 33, thereby further increasing the connecting force between the contacts 2 and the substrate And further the connecting performance between the plug connector and the substrate can be further improved. The insulating portion 3 may be installed in the shell 5 such that the protruding member 33 is located outside the shell 5. The protruding member 33 may be arranged to protrude rearward (in the direction of the arrow BD) of the shell 5. The protruding member 33, the blocking member 32, and the insulating member 31 may be integrally formed.

2 to 7, the waterproof portion 4 implements a waterproof function. The waterproof portion 4 is formed inside the shell 5 so as to be positioned in the insertion groove 51 so that the waterproof portion 4 is formed between the outer surface 3a of the insulating portion 3 and the inner surface 5a of the shell 5 By sealing, waterproof function can be realized. Accordingly, the receptacle connector 1 according to the present invention is realized such that the waterproof portion 4 does not exist on the rear side (BD arrow direction) side of the blocking member 32 provided in the shell 5, 4 can be prevented from being changed due to a change in volume or the like during the process of curing the potting liquid. Therefore, the receptacle connector 1 according to the present invention can improve the flatness of the mounting members 22, thereby improving the connection performance between the plug connector and the board. The receptacle connector 1 according to the present invention can be realized in a compact structure while having a waterproof function by reducing the length 5L of the shell 5 with respect to the second axial direction (Y-axis direction) Therefore, the applicability to miniaturized electronic devices can be improved.

The waterproof portion 4 may be formed by applying a potting liquid to the insertion groove 51 and then curing the insulating portion 3 in a state where the insulating portion 3 is installed in the shell 5. This will be described in detail with reference to FIGS. 6 and 7. FIG.

First, as shown in FIG. 6, the shell 5 provided with the insulation part 3 can be disposed so that the insertion groove 51 is oriented upward (UD arrow direction). In this state, the potting liquid P for realizing the waterproof portion 4 is applied to the insertion groove 51. In FIG. 6, the upward direction (UD arrow direction) and the forward direction (FD arrow direction) in FIG. 4 are the same direction.

Next, the potting liquid P applied by the insertion groove 51 flows downward (in the direction indicated by the arrow DD) by gravity and is supported by the supporting surface 321 of the blocking member 32, The groove 51 is filled with a predetermined height. When the blocking member 32 includes the receiving groove 322, the potting liquid P may be filled into the receiving groove 51 to be received in the receiving groove 322. 6, the lower direction (DD arrow direction) and the rear direction (BD arrow direction) in FIG. 4 are in the same direction.

Next, when the potting liquid P is filled in the insertion groove 51 to a predetermined height, the potting liquid P is cured. Accordingly, the waterproof portion 4 may be formed in the insertion groove 51 as shown in FIG. The waterproof portion 4 may be formed at a predetermined height in the insertion groove 51 while being supported by the support surface 321.

The waterproof portion 4 is formed on the inner side of the shell 5 so as to be positioned in the insertion groove 51 so that the inner surface 5a of the shell 5 and the insulative portion 3), the waterproof function can be realized.

2 to 9, the shell 5 supports the insulating portion 5 provided with the contact 2. The insulator 5 is moved toward the front side (in the arrow direction of the FD) in a state of being positioned rearward (in the direction of the arrow BD) of the shell 5 and inserted into the inside of the shell 5, . In this case, the insulating member 31 and the blocking member 32 may be located inside the shell 5, and the protruding member 33 may be located outside the shell 5. The mounting members 22 of each of the contacts 2 may be located outside the shell 5. The protruding member 33 and the mounting members 22 may be located behind the shell 5 (in the direction of the arrow BD).

The shell 5 may include the insertion groove 51.

The insertion groove 51 provides a connection space in which the plug connector is connected to the contacts 2. The plug connector is moved rearward (in the direction indicated by the arrow BD) in the state of being positioned in the front (FD arrow direction) side of the insertion groove 51 and inserted into the insertion groove 51, Can be connected to the members (21). The plug connector moves toward the front side (in the direction of the arrow of the FD) while being inserted into the insertion groove 51 and is detached from the shell 5 so as to be separated from the connecting members 21 of each of the contacts 2 .

The insertion groove 51 can receive the waterproof portion 4. The waterproof portion 4 may be formed by applying a potting liquid to the insertion groove 51 and then curing the insulating liquid in a state where the insulating portion 3 is coupled to the shell 4. The insulating portion 3 may be installed in the shell 5 such that the rear end 5b of the shell 5 is located on the same line with respect to the rear end 32a of the blocking member 32. [ 4, the rear end 5b of the shell 5 is located at the rear end of the shell 5 (in the direction of the arrow BD). The rear end 32a of the blocking member 32 is located at the rear end of the blocking member 32 in the direction of arrow BD. The insulating portion 3 may be installed in the shell 5 such that the rear end 5b of the shell 5 is positioned forward (in the arrowed direction of the FD) with respect to the rear end 32a of the blocking member 32 . Accordingly, the receptacle connector 1 according to the present invention is realized without the space inside the shell 5 on the rear side (BD arrow direction) of the shielding member 32 provided on the shell 5, It is possible to further reduce the length 5L of the shell 5 with respect to the direction (Y-axis direction). Therefore, the receptacle connector 1 according to the present invention can be realized in a more compact structure while having a waterproof function, so that applicability to miniaturized electronic devices can be further improved.

Referring to Figures 4 and 8-11, the shell 5 may include a shell body 50 (shown in Figure 8).

The shell main body 50 protects the contacts 2, the waterproof portion 4, the insulating member 31, and the blocking member 32 from the outside. The shell body 2 can achieve the overall appearance of the shell 51. The shell 51 may be formed in an elliptical rectangular shape having an inner space as a whole but the present invention is not limited thereto and may be applied to the contacts 2, the waterproof portion 4, the insulating member 31, 32 can be protected from the outside. A receiving hole 501 (shown in FIG. 9) may be formed in the shell body 50. The receiving hole 501 may be formed through the shell body 50. When the insulator 3 is inserted into the shell 5, a portion of the receiving hole 501 located in front of the blocking member 32 in the direction of arrow FD is inserted into the insertion groove 51 .

The shell body 50 may be integrally formed without the joint 500 (shown in FIG. 10). Accordingly, the outer surface of the shell 5 is realized without a gap due to the joint 500. Therefore, the receptacle connector 1 according to the present invention can achieve the following operational effects.

When the shell 5 is manufactured through a bending process in which the shell 5 is cut after bending the plate material and a joining process in which both ends of the bending plate material are joined together through a machining operation such as welding, The joint 500 is formed. Since the joint 500 is a gap, it must be filled with additional work such as tapping in order to implement the waterproof function. According to this, there is a problem that the shell 5 causes an increase in manufacturing cost due to an increase in the number of workings and a decrease in productivity due to an increase in manufacturing time. In addition, even if the shell 5 fills the joint 500 through an additional operation, there is a risk that moisture or the like penetrates through the joint 500, and thus the waterproof performance is lowered.

Alternatively, when the shell body 50 is integrally formed without the joint 500, the outer surface of the shell 5 is realized without a gap due to the joint 500. Accordingly, the receptacle connector 1 according to the present invention is implemented so that the shell 5 has a waterproof function without any additional operation such as tapping or the like in order to fill the joint 500. Therefore, the receptacle connector 1 according to the present invention can be provided with a waterproof function while reducing the number of workings, so that the manufacturing cost can be reduced, and the productivity can be improved by shortening the manufacturing time.

In the receptacle connector 1 according to the present invention, since the shell body 50 is integrally formed without the seam 500, the outer surface of the shell 5 is realized without a gap due to the seam 500, It is possible to prevent the possibility that moisture or the like may permeate through the heat exchanger 500. Therefore, the receptacle connector 1 according to the present invention can enhance the waterproof performance.

The shell body 50 may be formed integrally with the plate material by using a deep drawing method, a tube forming method, a metal injection molding (MIM) method, have.

8 to 11, the shell body 50 may be integrally formed without the joint 500 through the following process.

The processing tool 200 is lowered to a position spaced from the other surface of the plate 100 by a predetermined distance in a state where the processing tool 200 is in contact with the one surface of the plate 100, . Accordingly, one side of the plate 100 is closed and the machined portion 300 without the joint 500 is formed. The processing mechanism 200 is provided in a processing facility, and may be, for example, a punch provided in a press facility. The processing mechanism 200 is formed in a shape corresponding to the shell body 50. For example, the processing mechanism 200 may be formed in an elliptical rectangular shape. The plate 100 may be in a state of being supported by a die of a press facility.

Next, one side is closed by the processing mechanism 200, and the processing part 300 without the joint 500 is formed. Then, the processing part 300 is separated from the plate material 100.

Next, one side of the processing part 300 is cut to open one side of the processing part 300. In this case, the other side of the processing unit 300 opposite to the one side may be formed in an open form as the processing mechanism 200 partially extends the plate 100. That is, when the processing tool 200 in contact with one side of the plate 100 is lowered and the plate 100 is partially extended, the one side is opened and the other side is closed, Can be molded. Accordingly, when one side of the processing part 300 is cut and opened, the processing part 300 can be made of the shell body 50 by forming both sides open without the joint 500 . In this case, a step of cutting a part of the other side of the processing part 300 may be performed.

The shell body 50 may be formed integrally with the joint 500 without the steps. Therefore, the receptacle connector 1 according to the present invention can be provided with a waterproof function while reducing the number of workings in comparison with the prior art, so that the manufacturing cost can be reduced and the productivity can be improved by shortening the manufacturing time. Further, the receptacle connector 1 according to the present invention can fundamentally block the possibility of penetration of moisture or the like through the joint 500, and thus can have excellent waterproof performance.

9, 12 and 13, the shell 5 may include a restricting member 52.

The limiting member (52) supports the plug connector inserted into the insertion groove (51). The restricting member 52 may protrude from the inner surface 5a of the shell 5 toward the insertion groove 51. Accordingly, when the plug connector is inserted into the insertion groove 51 and is supported by the limiting member 52, the plug connector can no longer be inserted into the insertion groove 51. Therefore, by limiting the depth of insertion of the plug connector into the insertion groove 51, the limiting member 52 can be damaged or broken as the plug connector is inserted into the insertion groove 51 at an excessive depth It is possible to prevent the waterproof performance from being deteriorated.

The restricting member 52 may be formed to protrude toward the insertion groove 51 by bending a part of the shell main body 50. The limiting member 52 and the shell body 50 may be realized by separately attaching the limiting member 52 to the shell body 50 after they are separately manufactured. A plurality of the limiting members 52 may be coupled to the inner surface 5a of the shell 5. In this case, the limiting members 52 may be arranged to be spaced apart from each other. 9 shows the shell 5 with four limiting members 52 coupled thereto. However, the present invention is not limited thereto, and the shell 5 may be provided with one, two, three, or five or more limiting members 52 may be combined.

The limiting member 52 may include a first limiting surface 521 and a second limiting surface 522.

The first limiting surface 521 limits the depth at which the plug connector is inserted into the insertion groove 51. The first limiting surface 521 can support the plug connector inserted in the insertion groove 51 to limit the depth into which the plug connector is inserted into the insertion groove 51.

The second limiting surface 522 limits the flow range of the potting liquid for realizing the waterproofing portion 4. The potting liquid applied by the insertion groove 51 flows in the downward direction (direction of the arrow DD) by gravity and is supported by the supporting surface 321 of the blocking member 32 to be filled with a predetermined height. In this case, when the potting liquid is filled with the height at which the potting liquid contacts the second limiting surface 522, the second limiting surface 522 restricts the height at which the potting liquid is filled so that the potting liquid is supplied to the supporting surface 321 So that it can be entirely spread. Therefore, the receptacle connector 1 according to the present invention can reduce the degree of partial variation in the waterproof performance by reducing the height difference that partially occurs in the potting liquid applied to the insertion groove 51. Further, the receptacle connector 1 according to the present invention limits the height at which the potting liquid is filled in the insertion groove 51, so that as the potting liquid is filled in the insertion groove 51 excessively, It is possible to prevent the waterproof portion 4 from being obstructed by being inserted into the groove 51.

The second limiting surface 522 and the first limiting surface 521 may be disposed to face each other in a direction opposite to each other. The second limiting surface 522 may be disposed to face the blocking member 32. In this case, the blocking member 32 may be disposed to be spaced from the second limiting surface 522. Accordingly, the waterproof portion 4 may be formed to be positioned between the second limiting surface 522 and the blocking member 32. 12, the second limiting surface 522 is a surface of the limiting member 52 that faces the downward direction (the direction of the arrow DD). In this case, the second limiting surface 522 is a surface facing the rear (BD arrow direction) from the limiting member 52 with reference to FIG. 12, the first limiting surface 521 is a surface of the limiting member 52 that faces the upper direction (the direction of the arrow UD). In this case, the first limiting surface 521 is a surface facing forward (in the arrow direction of the FD) in the limiting member 52 with reference to FIG.

Referring to Figs. 2, 3 and 14, the receptacle connector 1 according to the present invention can include a cover 6 and a sealing member 7 (shown in Fig. 14).

The cover (6) is for protecting the shell (5). The shell (5) may be installed on the cover (6) so as to be located inside the cover (6). The cover 6 may be fixed to the substrate. The cover 6 may be mounted on the substrate using a surface mount technology so as to be fixed to the substrate. The cover (6) can be installed in the shell (5) by performing partial welding. The shell (5) is installed on the cover (6) so as to protrude from the cover (6). Thus, the mounting groove 61 is located in the portion of the shell 5 protruding from the cover 6. [

The sealing member 7 implements a waterproof function. The sealing member 7 may be installed in the shell 5. When the receptacle connector 1 according to the present invention is installed in an electronic device, the sealing member 7 can be prevented from penetrating moisture, dust or the like by being stuck in a frame (not shown) of the electronic device. Therefore, the receptacle connector 1 according to the present invention can be implemented to have a waterproof function even in relation to the electronic device, thereby contributing to improvement of the waterproof performance of the electronic device. The sealing member 7 may be installed in the shell 5 so as to surround the outer surface of the shell 5.

The sealing member 7 may be installed in the shell 5 so as to be positioned at a portion protruding from the cover 6 in the shell 5. In this case, the sealing member 7 may be installed on the sealing member 7 so as to be located in the mounting groove 61. The sealing member 7 has a shorter length 7L (shown in FIG. 14) than the length 61L (shown in FIG. 14) of the installation groove 61 with reference to the second axial direction (Y axis direction) ). ≪ / RTI > In this case, the length 61L of the mounting groove 61 may be about 1.5 times the length 7L of the sealing member 7 with respect to the second axial direction (Y-axis direction) . For example, when the length 7L of the sealing member 7 is 1.0 mm with respect to the second axial direction (Y-axis direction), the length 61L of the installation groove 61 is 1.5 mm . The sealing member 7 may be installed in the shell 5 such that a part of the installation groove 61 is left in the front (in the arrow direction of the FD). In this case, the sealing member 7 may be installed in the shell 5 to be in contact with the cover 6.

As shown in Fig. 14, the sealing member 7 may be formed to have an elliptical cross-section. In this case, the sealing member 7 may have an elliptical cross-section, and may be formed in an overall elliptical annular shape. Although not shown, the sealing member 7 may be formed to have a cross-sectional shape other than an elliptical cross-section as long as it is capable of realizing a water-proof function. The sealing member 7 may be formed in a shape other than an elliptical annular shape as long as the sealing member 7 is capable of implementing a waterproof function.

The sealing member 7 may be formed so as to protrude further from the outer surface of the cover 6 when the sealing member 7 is installed on the shell 5. Accordingly, the sealing member 7 is elastically compressed as it is in close contact with the frame of the electronic apparatus, so that the frame of the electronic apparatus can be pressed by the restoring force. Therefore, the receptacle connector 1 according to the present invention can be realized to have better waterproof performance.

Referring to FIGS. 15 and 16, the sealing member 7 may include a sealing body 71 and a sealing protrusion 72.

The sealing body 71 is in contact with the shell 5. The sealing member 7 may be installed in the shell 5 by arranging the sealing body 71 so as to surround the outer surface of the shell 5. The sealing body 71 may be formed to have a rectangular cross section. In this case, the sealing body 71 may have a quadrangular cross section, and may be formed in an overall elliptical annular shape. Although not shown, the sealing body 71 may be formed to have a cross-sectional shape other than a rectangular cross-section as long as it is capable of realizing a water-proof function. In addition, the sealing body 71 may be formed in a shape other than an elliptical ring shape as long as the sealing body 71 can realize a waterproof function.

The sealing protrusion 72 is in contact with the frame of the electronic apparatus. The sealing protrusion 72 is formed to protrude from the sealing body 71. The sealing protrusion 72 may be formed on the sealing body 71 so as to protrude outward from the shell 5 toward the sealing body 71. For example, the sealing protrusion 72 may protrude from the sealing body 71 in the outward direction with a length of 0.5 mm. The sealing protrusion 72 may have a shorter length than the sealing body 71 with respect to the second axial direction (Y-axis direction).

The sealing protrusion 72 may be formed so as to protrude more than the outer surface of the cover 6 when the sealing member 7 is installed in the shell 5. Accordingly, the sealing protrusion 72 is elastically compressed as being closely attached to the frame of the electronic apparatus, so that the frame of the electronic apparatus can be pressed by the restoring force. Therefore, the receptacle connector 1 according to the present invention can be realized to have better waterproof performance.

The sealing protrusion 72 may be formed to be reduced in size as it protrudes from the sealing body 71. For example, the sealing protrusions 72 may have a trapezoidal cross section. In this case, the sealing protrusions 72 may have a trapezoidal cross-section, and may be formed in an overall elliptic annular shape. Although not shown, the sealing protrusion 72 may be formed to have a cross-sectional shape other than a trapezoidal cross-section as long as it is capable of realizing a waterproof function. In addition, the sealing protrusion 72 may be formed in a shape other than an elliptical annular shape as long as the sealing protrusion 72 can realize a waterproof function.

The sealing member 7 may include a plurality of the sealing protrusions 72. In this case, the sealing protrusions 72 may be formed on the sealing body 71 such that the sealing protrusions 72 are spaced from each other along the second axis direction (Y-axis direction). 16, the sealing member 7 is shown to include two sealing protrusions 72 but is not limited thereto and the sealing member 7 may be embodied to include three or more sealing protrusions 72 have.

Hereinafter, embodiments of a method of manufacturing a receptacle connector according to the present invention will be described in detail with reference to the accompanying drawings.

2 to 13, a method of manufacturing a receptacle connector according to the present invention is for manufacturing a receptacle connector 1 mounted on a board provided in various electronic apparatuses for connection with the plug connector. According to the receptacle connector manufacturing method according to the present invention, the receptacle connector 1 according to the present invention described above can be manufactured. A method of manufacturing a receptacle connector according to the present invention may include the following configuration.

First, the insulating portion 3 provided with the contacts 2 is inserted into the shell 5. This process is performed by inserting the insulating portion 3 into the shell 5 so that the insulating member 31 and the blocking member 32 are located inside the shell 5 in the insulating portion 3 provided with the contacts 2 5). The step of inserting the insulating portion inside the shell can be performed by an assembling facility for assembling the insulating portion 3 and the insulating portion 3. [ The step of inserting the insulating portion inside the shell may be performed by an operator. Here, the contacts 2 may be inserted into the shell 5 after they are mounted on the insulating part 3 through an insert molding.

Next, the potting liquid is applied. Such a process may be performed by applying a potting solution for implementing the waterproof portion 4 into the insertion groove 51. [ The step of applying the potting liquid may be performed in such a manner that the potting liquid is introduced into the insertion groove 51 in a state in which the insertion groove 51 is erectly arranged to face upward (UD arrow direction) . The potting liquid applied by the insertion groove 51 flows in the downward direction (DD arrow direction) due to gravity and is supported on the support surface 321 of the blocking member 32 and spread, And is filled with a predetermined height. When the blocking member 32 includes the receiving groove 322, the potting liquid may be filled into the receiving groove 51 to be received in the receiving groove 322. The step of applying the potting liquid may be performed by a potting liquid coating equipment. The step of applying the potting liquid may be performed by an operator.

Next, the potting liquid is cured. This process may be performed by hardening the potting liquid applied to the inside of the shell 5 so as to be located in the insertion groove 51. The step of curing the potting liquid may be performed after the potting liquid is filled in the insertion groove 51 to a predetermined height. As the potting liquid is hardened, the waterproofing portion 4 can be realized in the insertion groove 51. The potting liquid can be cured through natural curing, ultraviolet curing, or thermal curing. The step of curing the potting liquid may be performed by a potting liquid curing facility. The step of curing the potting solution may be performed by an operator.

The receptacle connector 1 with waterproof function can be manufactured through the processes as described above. Accordingly, the receptacle connector manufacturing method according to the present invention can achieve the following operational effects.

First, in the method of manufacturing a receptacle connector according to the present invention, since the waterproof portion 4 is located in the insertion groove 51, the waterproof portion 4 is formed on the rear side of the insulating portion 3 It is possible to manufacture the receptacle connector 1 in which the portion 4 is not present. Accordingly, the method of manufacturing the receptacle connector according to the present invention can prevent the position of the contacts 2 from being changed due to a change in volume or the like during the curing of the potting liquid for realizing the waterproofing part 4 , It is possible to manufacture the receptacle connector 1 with improved flatness with respect to the contacts 2. Therefore, the receptacle connector manufacturing method according to the present invention not only increases the connecting force between the contacts 2 and the board, but also improves the connection performance between the plug connector and the board.

Secondly, the method of manufacturing a receptacle connector according to the present invention is characterized in that a receptacle connector (1) embodying the waterproof portion (4) is manufactured using an insertion groove (51) in which the plug connector is inserted in an inner space of the shell can do. Accordingly, the receptacle connector manufacturing method according to the present invention does not require a space for accommodating the waterproof portion 4 on the rear side (BD arrow direction) of the insulating portion 3 provided in the shell 5, It is possible to manufacture the receptacle connector 1 having a waterproof function and a compact structure by reducing the length 5L of the shell 5.

Here, the step of inserting the insulating portion into the shell is performed by inserting the shielding member 32 into the shell 5 so as to be located rearward (in the direction of the arrow BD) with respect to the insertion groove 51 . In this case, the step of applying the potting liquid may be performed by applying the potting liquid to the insertion groove 51 so that the potting liquid is located forward (in the direction of the arrow FD) of the blocking member 32 in the insertion groove 51 Lt; / RTI > The waterproof portion 4 may be formed inside the shell 5 so as to be located in the insertion groove 51 in the front of the blocking member 32 (in the arrow direction of the FD). Therefore, the receptacle connector manufacturing method according to the present invention can manufacture the receptacle connector 1 having a compact structure and excellent waterproof performance.

Here, the step of applying the potting liquid may be performed by applying the potting liquid to the insertion groove 51 so that the potting liquid is filled between the limiting member 52 and the blocking member 32. Accordingly, the waterproof portion 4 may be formed to be positioned between the limiting member 52 and the blocking member 32. [ Accordingly, the method of manufacturing the receptacle connector according to the present invention can reduce the degree of partial variation in the waterproof performance by reducing the height difference that partially occurs in the potting liquid applied to the insertion groove 51. Further, in the method of manufacturing a receptacle connector according to the present invention, by limiting the height at which the potting liquid is filled in the insertion groove 51, as the potting liquid is excessively filled in the insertion groove 51, It is possible to prevent the waterproof portion 4 from being disturbed by being inserted into the waterproof portion 51.

Here, the receptacle connector manufacturing method according to the present invention may include a step of manufacturing the shell. The step of manufacturing the shell may be performed before the step of inserting the insulating portion into the shell is performed. The process for manufacturing the shell may include the following configuration.

First, the processing tool 200 is brought into contact with one surface of the plate member 100. Such a process may be performed by moving the processing mechanism 200 toward one side of the plate 100. The processing facility may be a press facility. In this case, the processing mechanism 200 may be a punch provided in the press facility.

Next, the machining mechanism 200 is lowered to form the seamless machined portion 300. This process may be performed by lowering the processing mechanism 200 by the processing equipment so that the plate 100 is stretched. Accordingly, the processed portion 300 having one side closed is formed in the plate member 100. [ Further, since the processing part 300 is formed by partially extending the plate member 100, it is formed into a seamless shape. In this case, the processing tool 200 can be extended to the position spaced apart from the other surface of the plate 100 while being in contact with one surface of the plate 100, thereby extending the plate 100. When the processing tool 200 is lowered to a position apart from the other surface of the plate member 100, the plate member 100 can be pressed and extended by the processing mechanism 200.

Next, the processing part 300 is separated from the plate material 100. Such a process may be performed by cutting a portion of the processing member 300 attached to the plate member 100. [ For example, the processing unit 300 may be separated from the plate 100 by cutting the other side opposite to the one side. The step of separating the machining portion from the plate material can be performed through a cutting mechanism provided in the machining facility. The step of separating the processed portion from the plate material may be performed through a cutting facility provided separately from the processing facility.

The shell 5 formed integrally so as to be seamless through the above-described processes can be manufactured. Therefore, the method of manufacturing the receptacle connector according to the present invention can manufacture the receptacle connector 1 using the shell 5 having a waterproof function while reducing the number of workings, so that the manufacturing cost can be reduced, The receptacle connector 1 can be manufactured.

Here, the step of cutting one side of the machining portion may be performed by cutting the one side of the machining portion 300 by the machining equipment or the cutting equipment. Accordingly, the processing part 300 can be manufactured as a shell 5 having no joints and having both sides opened to form a receiving hole 501.

Here, the step of forming the machined part may be performed by lowering the processing mechanism 200 which is in contact with one surface of the plate material 100, and closing the one side surface and molding the machined part 300 having the other side surface opened It is possible. In this case, when the process of cutting one side of the processed portion is performed, the processed portion 300 may be formed with both sides open.

The step of cutting one side of the machining portion is performed after the step of cutting a part of the other side of the machining portion 300 is performed so that the machined portion 300 having both sides as well as both sides is formed You may.

Here, the receptacle connector manufacturing method according to the present invention may include a step of installing the cover on the shell. The step of providing the cover to the shell may be performed after the step of curing the potting liquid is performed. The step of attaching the cover to the shell may be performed by partially welding the cover (6) and the shell (5) in contact with each other. The step of attaching the cover to the shell may be performed by installing the cover 6 on the shell 5 so that a part of the shell 5 protrudes from the cover 6. [ Accordingly, a mounting groove 61 for mounting the sealing member may be formed in the portion protruding from the cover 6 in the shell 5.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be clear to those who have knowledge of.

1: receptacle connector 2: contact
3: insulation part 4: waterproof part
5: Shell 6: Cover
21: connecting member 22: mounting member
23: connecting member 31: insulating member
32: blocking member 33: projecting member
51: insertion groove 52: limiting member
61: coupling groove 321: supporting surface
322: receiving groove 501: receiving hole
521: first limiting surface 522: second limiting surface

Claims (16)

A contact mounted on the substrate for electrical connection between the plug connector and the substrate;
An insulating portion having a plurality of contacts;
A shell including an insertion groove into which the plug connector is inserted, the shell having the insulation portion; And
And a waterproof portion formed on an inner side of the shell so as to be positioned in the insertion groove to seal between an inner surface of the shell and an outer surface of the insulating portion. The method according to claim 1,
Wherein the insulating portion includes a shielding member that contacts the inner surface of the shell, the shielding member being installed in the shell so as to be positioned rearward with respect to the insertion groove,
And the waterproof portion is formed inside the shell so as to be positioned in front of the blocking member in the insertion groove. 3. The method of claim 2,
Wherein the blocking member includes a supporting surface for supporting the potting liquid for realizing the waterproofing portion. 3. The method of claim 2,
And the blocking member includes a receiving groove for receiving the waterproof portion. The method according to claim 1,
And a restricting member projecting from the inner surface of the shell toward the insertion groove,
Wherein the limiting member includes a first limiting surface that limits a depth at which the plug connector is inserted into the insertion groove and a second limiting surface that limits a flow range of the potting liquid to implement the waterproofing portion. connector. 6. The method of claim 5,
Wherein the first limiting surface and the second limiting surface are disposed to face each other in a direction opposite to the first limiting surface, and the second limiting surface is disposed to face the blocking member,
And the blocking member is disposed to be spaced from the second limiting surface. 6. The method of claim 5,
A plurality of the limiting members are coupled to the inner surface of the shell,
Wherein the limiting members are spaced apart from each other. 3. The method of claim 2,
Wherein the insulating portion is provided in the shell such that a rear end of the shell is located on the same line with respect to a rear end of the shielding member or a rear end of the shell is located forwardly with respect to a rear end of the shielding member. The method according to claim 1,
Wherein the shell includes a shell body integrally formed so as to be free of joints. 10. The method of claim 9,
The shell body is formed by partially extending the plate member by a processing mechanism so that one side is closed and the other side is opened by cutting one side of the machined portion formed without a seam . The method according to claim 1,
A cover for protecting the shell, and a sealing member provided on the shell,
Wherein the shell is installed on the cover so as to protrude from the cover,
And the sealing member is installed in the shell so as to be located at a portion protruding from the cover in the shell. Inserting an insulator having a plurality of contacts for electrically connecting the plug connector and the substrate to the inside of the shell;
Applying a potting liquid to the inside of the shell to form a waterproof portion into an insertion groove into which the plug connector is inserted; And
And curing the potting liquid applied to the inside of the shell so as to be positioned in the insertion groove. 13. The method of claim 12,
The step of inserting the insulating portion inside the shell may include inserting the shielding member of the insulating portion inside the shell such that the shielding member is positioned behind the insertion groove,
Wherein the step of applying the potting liquid comprises applying the potting liquid to the insertion groove so that the potting liquid is positioned in front of the blocking member in the insertion groove. 14. The method of claim 13,
Wherein the step of applying the potting liquid comprises applying the potting liquid to the insertion groove so that the potting liquid is filled between the limiting member protruding from the inner surface of the shell toward the insertion groove and the blocking member. Way. 13. The method of claim 12,
Wherein the step of forming the shell comprises the steps of:
A step of bringing a processing mechanism into contact with one surface of the plate material,
Lowering the processing mechanism so that the plate material is elongated to close one side surface and form a seamless part;
And separating the seamless formed part from the plate material. 16. The method of claim 15,
The step of forming the machining portion may include lowering the machining mechanism that is in contact with one surface of the plate material so as to close the one side surface and form a machined portion whose other side opposite to the one side surface is open,
Wherein the step of manufacturing the shell includes cutting one side of the machining portion such that both sides of the machining portion separated from the plate are opened.

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