KR101734290B1 - Electrical connector and flexible circuit assembly having the same - Google Patents

Abstract

Disclosed is an electrical connector comprising: a housing having a flexible circuit accommodating unit; a plurality of terminals mounted in the housing, and coming in contact with a flexible circuit accommodated in the flexible circuit accommodating unit; an actuator formed to be rotated and to open and close the flexible circuit accommodating unit; and a first earthing connection member and a second earthing connection member made of a metal material and respectively mounted on both sides of the housing. Each of the first and second earthing connection members comprises: a first earthing connection unit disposed on the bottom surface of the housing, and mounted on an earthing unit of a circuit substrate; and a second earthing connection unit disposed to be separated by a predetermined gap from the bottom surface of the flexible circuit accommodating unit to the upper side, and coming in contact with a shielding unit disposed on the top surface of the flexible circuit while the flexible circuit is accommodated in the flexible circuit accommodating unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electrical connector and a flexible circuit assembly having the electrical connector.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electrical connector for connecting an electric power source and a device, a device and an internal unit of the device or a device, and a flexible circuit assembly having the same.

A flexible circuit is a thin film type cable that forms a complex circuit on a flexible insulation film. It is a concept including a flexible flat cable (FFC) and a flexible printed circuit (FPC). . Flexible circuits are widely used in various electronic products because of flexibility such as bending, lapping, folding, curling, and twisting.

In order to electrically connect the flexible circuit to the printed circuit board, the electrical connector is mounted on the printed circuit board, and the end of the flexible circuit is accommodated in the flexible circuit accommodating portion of the electrical connector and electrically connected to the terminal mounted on the electrical connector . The flexible circuit and the printed circuit board are electrically connected through the terminal.

On the other hand, most of the driving elements mounted on the printed circuit board operate by high frequency, which is a cause of generation of electromagnetic waves in the connection structure of the terminal and the flexible circuit.

However, since there is no structure for shielding electromagnetic interference (EMI) in the connection structure between the terminal of the electric connector and the flexible circuit, the electromagnetic wave interferes with the electric signal transmitted through the flexible circuit But it is emitted to an external peripheral device, causing a malfunction of the peripheral device.

Japanese Patent Application Laid-Open No. 10-2013-0060102 (June 3, 2013)

Therefore, it is a first object of the present invention to provide an electrical connector having a structure capable of shielding electromagnetic interference in a connection structure of a flexible circuit with a terminal of an electrical connector.

A second object of the present invention is to provide an electrical connector which is easy to assemble and a flexible circuit assembly having the same, since it is unnecessary to perform an additional step other than the step of inserting and mounting a flexible circuit in the flexible circuit accommodating portion of the electrical connector for shielding the electromagnetic interference .

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided an electrical connector comprising: a housing having a flexible circuit receiving portion for receiving one end of a flexible circuit; A plurality of terminals mounted on the housing and connected to the flexible circuit, at least a part of which is exposed to the flexible circuit accommodating portion and accommodated in the flexible circuit accommodating portion; An actuator which is rotatable to open and close the flexible circuit accommodating portion and which presses the upper surface of the flexible circuit accommodated in the flexible circuit accommodating portion to cover the flexible circuit accommodating portion; And a first ground connecting member and a second ground connecting member, which are formed of a metal material and are mounted on both sides of the housing, respectively, wherein each of the first and second ground connecting members is disposed on the bottom surface of the housing, A first ground connection portion mounted on a ground portion of the circuit board; And a second ground connection portion which is spaced apart from the bottom surface of the flexible circuit receiving portion at a predetermined distance and which is in contact with the shielding portion provided on the upper surface of the flexible circuit while the flexible circuit is accommodated in the flexible circuit receiving portion, .

According to an embodiment of the present invention, the second ground connection portion is formed to extend from the protruding portion relatively protruding on both sides of the flexible circuit accommodating portion toward the flexible circuit accommodating portion, and formed to be downwardly inclined downward from the front of the flexible circuit accommodating portion And a portion of the second ground connection portion is covered by the actuator while the actuator is disposed so as to cover the flexible circuit receiving portion, and a recess portion corresponding to a portion of the second ground connection portion may be formed in the actuator .

According to an embodiment of the present invention, each of the first and second ground connecting members may further include a mounting portion mounted on the housing and connecting the first ground connection portion and the second ground connection portion.

According to an embodiment of the present invention, the mounting portion includes: an upper mounting portion that is seated on one side of the upper surface of the housing; And a side attachment portion extending downward from the upper mounting portion and inserted into an insertion hole formed in the housing, the side attachment portion being connected to the first ground connection portion.

According to an embodiment of the present invention, the second ground connection portion is bent downward in the downward direction in the upper mounting portion, so that the shielding portion of the flexible circuit inserted into the flexible circuit receiving portion can be pressed.

According to an embodiment of the present invention, a seating groove is formed on both upper surfaces of the housing, and the upper mounting portion is seated in the seating groove and arranged on the same plane as the upper surface of the housing.

According to an embodiment of the present invention, on both sides of the flexible circuit accommodating portion, fixing protrusions, which are fitted in the fixing grooves respectively formed on the left and right sides of the flexible circuit, may be formed so as to protrude upward.

According to an embodiment of the present invention, an upper portion of the flexible circuit accommodated in the flexible circuit accommodating portion may be covered with the fixing protrusions so as to overlap with the fixing protrusions so as to overlap with each other in the vertical direction and to protrude from both sides of the upper surface of the housing to the flexible circuit accommodating portion And a protruding jaw that is disposed so as to be disposed.

According to an embodiment of the present invention, the actuator includes: an actuator body portion having a hinge portion rotatably mounted on the plurality of terminals; and a cover portion extending from the hinge portion so as to open and close the flexible circuit receiving portion; And hinge projections formed laterally at both ends of the actuator body portion.

According to an embodiment of the present invention, the actuator may further include a plurality of pressing protrusions protruding downward from a bottom surface of the hinge portion and pressing the upper surface of the flexible circuit inserted into the flexible circuit receiving portion.

According to an embodiment of the present invention, each of the first and second ground connecting members includes: a first extending portion extending to the rear of the housing to cover an upper portion of the hinge projection at the mounting portion; And a second extension portion extending from the mounting portion to the rear of the housing and supporting a lower portion of the hinge projection.

According to an embodiment of the present invention, each of the first and second ground connecting members may further include a locking protrusion formed at an end of the second extending portion and inserted and coupled to the rear surface of the housing.

According to one example related to the present invention, the plurality of terminals include a plurality of first terminals and second terminals spaced apart from each other along the lateral direction of the housing and rotatably supporting the hinge portion, The terminal includes: a first contact protruding portion exposed to the flexible circuit receiving portion, the first contact protruding portion being contactable with a part of a circuit portion provided on a bottom surface of the flexible circuit; And a first hook portion disposed on the first contact protruding portion and surrounding a portion of the hinge portion, the second terminal being exposed to the flexible circuit accommodating portion and capable of contacting with another portion of the circuit portion of the flexible circuit A second contact protruding portion formed to be in contact with the first contact protrusion; And a second hook portion disposed on the second contact protruding portion and surrounding another portion of the hinge portion.

In order to accomplish the object of the present invention, a flexible circuit assembly according to the present invention is mounted on a circuit board and includes the above-described electrical connector; And a flexible circuit inserted in a flexible circuit accommodating portion provided in the electrical connector, wherein the flexible circuit includes: a circuit portion formed along the lateral direction on the bottom surface and in contact with a plurality of terminals provided in the electrical connector; And a shielding film formed on the upper surface of the shielding film so as to cover the circuit portion and shielding the electromagnetic wave interference between the plurality of terminals and the circuit portion.

According to an embodiment related to the flexible circuit assembly of the present invention, the shield may be formed of a metal material, and may be arranged to overlap with the circuit portion.

According to an embodiment related to the flexible circuit assembly of the present invention, the shielding portion may include a contact portion that protrudes from both side edges of the shielding portion so as to be in contact with a part of the grounding connection member provided to the electrical connector.

According to an aspect of the present invention, there is provided a display device including: a display unit for outputting time information; A circuit board for controlling the display unit; An electrical connector mounted on the circuit board; And a flexible circuit in which one end portion is inserted into a flexible circuit receiving portion of the electrical connector, the flexible circuit comprising: a circuit portion formed along the lateral direction on the bottom surface, the circuit portion being in contact with a plurality of terminals provided in the electrical connector; And a shielding film formed on the upper surface of the shielding film so as to cover the circuit portion and shielding electromagnetic wave interference between the plurality of terminals and the circuit portion.

According to the present invention configured as described above, the following effects can be obtained.

First, an electrical connector is mounted on an upper surface of a circuit board including a ground portion, and a ground connection member of a metal material is provided at both ends of the housing of the electrical connector, and one side of the ground connection member is connected to a ground portion of the circuit board And the other side of the ground connection member is in contact with the shielding portion of the flexible circuit accommodated in the flexible circuit accommodating portion of the electrical connector so that the shielding portion of the flexible circuit is electrically connected to the ground portion of the circuit board, Electromagnetic interference is shielded.

Therefore, since the electromagnetic wave generated inside the housing is shielded by the shielding portion of the flexible circuit and is not emitted to the outside of the housing, malfunction of the peripheral device can be reduced. Further, the electromagnetic wave generated from the outside of the housing by the shielding portion of the flexible circuit can be prevented from flowing into the connection portion between the terminal of the housing and the flexible circuit.

Secondly, the ground connecting member is provided on both sides of the housing in such a structure that the flexible circuit is inserted into the flexible circuit receiving portion and can be in contact with the shielding portion of the flexible circuit, so that a separate additional Since no process is required, assembly is easy.

1 is an exploded perspective view showing a state before a flexible circuit is inserted into an electrical connector according to the present invention.
FIG. 2 is a perspective view showing a state where one end of a flexible circuit is inserted into the electrical connector of FIG. 1; FIG.
Fig. 3 is a front view of the electrical connector housing the flexible circuit of Fig. 2 as viewed from the front; Fig.
Fig. 4 is a partially enlarged view showing a state in which the first ground connecting member is mounted on one side of the housing in Fig. 2;
Fig. 5 is a partially enlarged view showing a state before the second ground connecting member is mounted on the other side of the housing in Fig. 2;
FIG. 6 is a conceptual view showing a state in which a part of the first ground connecting member supports the hinge protrusion of the actuator while supporting it in FIG.
FIG. 7 is a conceptual view of the electrical connector of FIG. 1 viewed from above.
8 is a cross-sectional view taken along the line AA in Fig.
FIG. 9 is a conceptual view enlarging and showing the arrangement structure of the terminal with the actuator removed in FIG.
FIGS. 10A and 10B are cross-sectional views taken along line BB in FIG. 7, and are conceptual diagrams showing a structure in which a first terminal surrounds a part of a hinge portion of an actuator.
11 is a cross-sectional view taken along line CC in FIG. 7, and is a conceptual view showing a structure in which a second terminal surrounds another portion of a hinge portion of an actuator.
12 is a perspective view showing a folded state of the flexible circuit according to the present invention.
13A is a conceptual diagram for explaining a circuit portion provided on the bottom surface of the flexible circuit in FIG.
FIG. 13B is a conceptual view for explaining a shielding portion provided on the upper surface of the flexible circuit in FIG.

Hereinafter, an electrical connector according to the present invention will be described in detail with reference to the drawings.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be obscured.

FIG. 1 is an exploded perspective view showing a state before the flexible circuit 10 is inserted into the electrical connector 100 according to the present invention, and FIG. 2 is an exploded perspective view showing a state in which one end of the flexible circuit 10 is inserted FIG. 3 is a front view of the electrical connector 100 accommodating the flexible circuit 10 of FIG. 2 viewed from the front. FIG.

4 is a partially enlarged view showing a state in which the first ground connecting member 120a is mounted on one side of the housing 101 in FIG. 2, FIG. 5 is a partially enlarged view showing a state in which the second ground connecting member 120b is mounted on the housing 101, 6 shows a state in which a part of the first ground connecting member 120a in FIG. 4 supports the hinge protrusion 132 of the actuator 130 while supporting the hinge protrusion 132 Fig.

The electrical connector 100 of the present invention electrically connects the circuit board 20 (PCB) and the flexible circuit 10.

Referring to FIG. 1, an electrical connector 100 of the present invention includes a housing 101, a plurality of terminals 110, a plurality of ground connecting members 120a and 120b, and an actuator 130.

The housing 101 forms the body of the electrical connector 100. A flexible circuit accommodating portion 102 is provided inside the housing 101 so that one end of the flexible circuit 10 is inserted into the flexible circuit accommodating portion 102.

The flexible circuit receiving portion 102 is formed to be depressed downward from the upper surface of the housing 101.

Protruding portions 103 are relatively protruded from both sides of the flexible circuit receiving portion 102. [ One end of the flexible circuit 10 may be inserted between the protrusions 103 at the front of the flexible circuit receiving portion 102 to be received in the flexible circuit receiving portion 102.

The flexible circuit 10 can be understood as a concept including an FFC (Flexible Flat Cable) and an FPC (Flexible Printed Circuit). In this embodiment, one end of the FFC is inserted into the flexible circuit receiving portion 102 of the electrical connector 100. [

The plurality of terminals 110 are made of a conductive material. A plurality of terminals (110) are mounted on the housing (101). A plurality of terminal engaging portions are formed at the rear of the housing 101, and each of the plurality of terminals 110 can be inserted into the housing 101 through the terminal engaging portion.

The plurality of terminals 110 may be connected to the flexible circuit 10 which is at least partially exposed to the flexible circuit accommodating portion 102 and inserted into the flexible circuit accommodating portion 102. [ The plurality of terminals 110 are spaced apart from each other in the lateral direction of the flexible circuit receiving portion 102.

Each of the plurality of terminals 110 includes contact protrusions 1101a and 1102a and circuit board connection portions 1101d and 1102d.

The contact protrusions 1101a and 1102a protrude from the front end of the terminal 110 and are exposed to the flexible circuit receiving portion 102 and are electrically connected to the circuit portion 14 of the flexible circuit 10 accommodated in the flexible circuit receiving portion 102, / RTI > The circuit portion 14 of the flexible circuit 10 is provided on the bottom surface of the flexible circuit 10 (see Fig. 3).

The circuit board connection portions 1101d and 1102d are protruded rearward and downward from the rear lower end of the body of the terminal 110 and are exposed to the outside of the housing 101 (Not shown) of the substrate 20 by soldering.

Each of the plurality of ground connecting members 120a and 120b is provided at both side ends of the housing 101, respectively. The plurality of ground connecting members 120a and 120b are connected to the shielding portion 12a of the flexible circuit 10 accommodated in the flexible circuit receiving portion 102 and the grounding portion 12a of the circuit board 20 located at the lower portion of the housing 101 21 are electrically connected to each other.

The shielding film 12 is attached to the upper surface of the flexible circuit 10 for electromagnetic wave shielding in the connection structure of the flexible circuit 10 and the terminal 110. [ The shielding portion 12a is a part of the shielding film 12.

A circuit portion (14) is provided on the bottom surface of the flexible circuit (10). The circuit portion 14 is formed so as to cross the right and left edges of the flexible circuit 10 in the width direction.

The shielding portion 12a is arranged to cover at least a part of the circuit portion 14 of the flexible circuit 10. [ The shielding portion 12a may be disposed so as to cover the circuit portion 14 of the flexible circuit 10. The shielding portion 12a may be disposed so as to overlap with the circuit portion 14 of the flexible circuit 10. [

The plurality of ground connecting members 120a and 120b are formed of a metal material. The plurality of ground connecting members 120a and 120b include a first ground connecting member 120a and a second ground connecting member 120b mounted on both sides of the housing 101, respectively.

The ground connecting members 120a and 120b located on the left side of the housing 101 are referred to as a first ground connecting member 120a for convenience of explanation and the ground connecting members 120a and 120b located on the right side of the housing 101, 120b are referred to as a second ground connecting member 120b.

Each of the first and second ground connection members 120a and 120b includes a first ground connection 123 and a second ground connection 124. [

The electrical connector 100 is mounted on the upper surface of the circuit board 20. And a grounding portion 21 is provided on the upper surface of the circuit board 20. [

The first ground connection portion 123 is disposed on the bottom surface of the housing 101 so as to face the ground portion 21 of the circuit board 20. The first ground connection part 123 is electrically connected by being brought into contact with the ground part 21 of the circuit board 20. The first ground connection part 123 may be inserted into the concave groove formed concavely in the bottom surface of the housing 101 so that the first ground connection part 123 may be disposed on the same plane as the bottom surface of the housing 101.

The second ground connection portion 124 is spaced upward from the bottom surface of the flexible circuit receiving portion 102 with a predetermined gap therebetween. The second ground connection portion 124 is brought into contact with the shielding portion 12a disposed on the upper surface of the flexible circuit 10 while the flexible circuit 10 is accommodated in the flexible circuit accommodating portion 102. [

Each of the first and second ground connecting members 120a and 120b further includes mounting portions 121 and 122. [

The mounting portions 121 and 122 are mounted on the housing 101. The mounting portions 121 and 122 connect the first ground connection portion 123 and the second ground connection portion 124 together. The mounting portions 121 and 122 include an upper mounting portion 121 mounted on one side of the upper surface of the housing 101 and a side mounting portion 122 extending downward from the upper mounting portion 121 and connected to the first ground connection portion 123 .

On the upper surfaces of both sides of the housing 101, seating grooves 103a are formed. The upper mounting portion 121 is seated and supported in the seating groove 103a. The seating groove 103a may be recessed by a thickness of the upper mounting portion 121 on the upper surface of the protruding portion 103 protruding from both sides of the flexible circuit receiving portion 102. The upper mounting portion 121 is disposed on the same plane as the upper surface of the housing 101, so that interference with peripheral electronic components can be avoided.

At both side ends of the housing 101, insertion holes are formed. The side mounting portion 122 is inserted into the insertion hole, and a portion of the lower end of the side mounting portion 122 and the first ground connection portion 123 are integrally connected.

The second ground connection part 124 may be bent and formed to be inclined downward from the upper mounting part 121 and may be resiliently supported. The second ground connection part (124) presses the shielding part (12a) of the flexible circuit (10) inserted into the flexible circuit receiving part (102).

The curved surface portion 124a may be formed at the lower end of the second ground connection portion 124 to be convex downward. The curved surface portion 124a is spaced apart from the bottom surface of the flexible circuit receiving portion 102 at an interval equal to or slightly smaller than the thickness of the flexible circuit 10. The second ground connection part 124 is formed to protrude from the flexible circuit receiving part 102 to cover the upper part of the flexible circuit 10.

The upper surface of the flexible circuit 10 can lift the curved surface portion 124a of the second ground connection portion 124 upward when the flexible circuit 10 is inserted into the flexible circuit receiving portion 102. [ At this time, the curved surface portion 124a of the second ground connection portion 124 contacts the shielding portion 12a of the flexible circuit 10 and can press the shielding portion 12a.

The shielding portion 12a is provided with the contact portion 12b. The contact portions 12b are formed so as to protrude from both side edges of the shielding portion 12a. And the contact portion 12b may be in contact with the second ground connection portion 124. [ The curved surface portion 124a of the second ground connection portion 124 is substantially in contact with the contact portion 12b of the shielding portion 12a.

Fixing grooves 11 may be formed on the left and right sides of the flexible circuit 10, respectively. The fixing grooves 11 may be formed so as to be opposed to each other on a straight line crossing the opposite side edges of the flexible circuit 10 in the width direction.

Fixing protrusions 103c may protrude from both sides of the flexible circuit receiving portion 102 and the fixing protrusions 103c may be inserted into the fixing grooves 11. [

When the flexible circuit 10 is inserted into the flexible circuit receiving portion 102, the fixing protrusion 103c of the housing 101 is fitted into the fixing groove 11 of the flexible circuit 10, It is possible to restrict the detachment from the housing 101 from the flexible circuit receiving portion 102.

On both sides of the flexible circuit accommodating portion 102, protruding protrusions 103b may be spaced apart from the fixing protrusions 103c so as to overlap in the vertical direction. The protrusion 103b protrudes from the upper surface of the housing 101 or the protrusion 103 to the flexible circuit receiving portion 102 so that the upper portion of the flexible circuit 10 accommodated in the flexible circuit receiving portion 102 As shown in Fig.

Each of the first and second ground connecting members 120a and 120b includes a first ground connecting portion 123 and a second ground connecting portion 124 and mounting portions 121 and 122. The ground connecting members 120a and 120b The other side of each of the ground connection members 120a and 120b is connected to the flexible circuit through the second ground connection 124 via the first ground connection part 123, The grounding portion 21 of the circuit board 20 is electrically connected to the shielding portion 12a of the flexible circuit 10 by making contact with the shielding portion 12a of the flexible circuit 10 housed in the housing 102. [

FIG. 6 is a conceptual view showing a state in which the first ground connecting member 120a covers and supports the hinge protrusion 132 of the actuator 130 in FIG.

The actuator 130 is configured to be rotatable to open and close the flexible circuit receiving portion 102. The actuator 130 is configured to press the upper surface of the flexible circuit 10 in a state where the flexible circuit 10 is received in the flexible circuit receiving portion 102.

On both sides of the actuator body portion, hinge projections 132 are formed so as to protrude in the left and right directions of the flexible circuit receiving portion 102, respectively.

Each of the first and second ground connecting members 120a and 120b includes a first extending portion 125 and a second extending portion 126. [

The first extension portion 125 extends toward the rear of the housing 101 so as to cover the upper portion of the hinge protrusion 132 at the rear upper end of the side mount portion 122. [

The second extension portion 126 is formed to extend rearward of the housing 101 at the rear end lower portion of the side mount portion 122 to support the lower portion of the hinge protrusion 132. [

The first extension portion 125, the rear end portion of the side mount portion 122, and the second extension portion 126 may be configured to enclose the hinge protrusion 132. The hinge protrusion 132 may be rotatably supported by the first extension portion 125, the side attachment portion 122, and the second extension portion 126 when the actuator 130 rotates.

A locking protrusion 126a may be formed at an end of the second extension portion 126. [ The locking protrusions 126a may be inserted into the coupling portions of the ground connection members 120a and 120b formed on the rear portion of the housing 101. [ The engaging protrusion 126a is inclined to be lowered toward the rear of the housing 101 so that the engaging protrusion 126a can be easily inserted into the engaging portion of the ground connecting members 120a and 120b. The front end of the locking protrusion 126a is formed to be stepped in the height direction so that the locking protrusion 126a inserted into the coupling part of the ground connection members 120a and 120b can be prevented from falling toward the front of the housing 101 have.

FIG. 7 is a conceptual view of the electrical connector 100 of FIG. 1 viewed from above, and FIG. 8 is a cross-sectional view taken along the line A-A of FIG.

In Fig. 7, the flexible circuit 10 is missing from the flexible circuit receiving portion 102, and the actuator 130 is rotated so as to cover the flexible circuit receiving portion 102. Fig.

The second ground connection part 124 extends from the protruding part 103 protruding from both sides of the flexible circuit receiving part 102 toward the flexible circuit receiving part 102 and extends downward from the front of the flexible circuit receiving part 102 As shown in FIG.

At this time, a part of the second ground connection part 124 is covered by the actuator 130 in a state where the actuator 130 is arranged to cover the flexible circuit receiving part 102.

Here, the actuator 130 may be formed with a recess 135 corresponding to a part of the second ground connection part 124. The recess portion 135 is opposed to a portion of the second ground connection portion 124 so that when the actuator 130 is rotated to cover the flexible circuit receiving portion 102, a portion of the second ground connection portion 124 Thereby preventing interference.

FIG. 9 is a conceptual diagram showing an enlarged view of the arrangement structure of the terminal 110 with the actuator 130 removed in FIG. 4. FIGS. 10A and 10B are cross-sectional views taken along line BB in FIG. 11 is a cross-sectional view taken along line CC in FIG. 7, and FIG. 11 is a cross-sectional view taken along line CC of FIG. 7. The second terminal 1102 is connected to the hinge portion 131 of the actuator 130, (131) of the first embodiment.

The plurality of terminals 110 includes a plurality of first terminals 1101 and a plurality of second terminals 1102.

The plurality of first and second terminals 1101 and 1102 are spaced apart from each other in the lateral direction of the flexible circuit receiving portion 102.

The second terminal 1102 may be disposed alternately with one or two first terminals 1101.

Each of the plurality of first and second terminals 1101 and 1102 may include contact protrusions 1101a and 1102a, hook portions 1101b and 1102b, and arm portions 1101c and 1102c. The contact protrusions 1101a and 1102a and the hook portions 1101b and 1102b may be connected by the arm portions 1101c and 1102c.

Referring to FIG. 9, each of the plurality of first terminals 1101 may include a first contact protruding portion 1101a and a first hook portion 1101b.

Each of the plurality of second terminals 1102 may include a second contact protruding portion 1102a and a second hook portion 1102b.

The first and second contact protrusions 1102a may be exposed to the lower portion of the flexible circuit accommodating portion 102 and may be in contact with the circuit portion 14 of the flexible circuit 10 accommodated in the flexible circuit accommodating portion 102 .

The first hook portion 1101b and the second hook portion 1102b may be arranged to be exposed to the upper portion of the flexible circuit accommodating portion 102 so as to rotatably support the actuator 130. [

The flexible circuit accommodating portion 102 may be staggered in the height direction.

The first hook portion 1101b may be disposed on the upper portion of the flexible circuit receiving portion 102 and may have an end protruding downward. Two first hook portions 1101b may be provided so as to be spaced apart from each other in forward and backward directions.

The second hook portion 1102b may be disposed lower than the first hook portion 1101b, and the end may protrude upward. Two second hook portions 1102b may be provided so as to be spaced apart in the front-rear direction.

Referring to FIGS. 10A and 10B, the first hook portion 1101b and the first contact protruding portion 1101a may be connected by the first arm portions 1101c and 1102c. Also, the second hook portion 1102b and the second contact protruding portion 1102a may be connected by the second arm portions 1101c and 1102c. The circuit board connection portions 1101d and 1102d are formed to protrude downward in the rear portions of the first and second arm portions 1101c and 1102c so that the circuit board connection portions 1101d and 1102d of the first and second terminals 1101 and 1102, (1101d, 1102d) may be soldered to the circuitry of the circuit board (20).

The actuator 130 includes an actuator body portion. The actuator body part has a hinge part (131) and a lid part (133).

The actuator 130 may be rotatably mounted on the housing 101 or rotatably mounted on the plurality of terminals 110. 10A and 10B show a state in which the actuator 130 is rotatably mounted on the plurality of terminals 110. Fig. 10A shows a state in which the actuator 130 is disposed so as to cover the flexible circuit receiving portion 102. FIG. Fig. 10B shows a state in which the actuator 130 is rotated to open the flexible circuit receiving portion 102. Fig.

The hinge portion 131 may be rotatably coupled to the plurality of terminals 110. [ To this end, a plurality of terminal receiving grooves 1311 may be spaced along the left and right direction of the hinge portion 131 at the rear portion of the hinge portion 131. Each of the plurality of terminal receiving grooves 1311 may be recessed forwardly at the rear portion of the hinge portion 131.

A hinge shaft 131 may be provided in a part of the plurality of terminal accommodating grooves 1311. The hinge shaft 131 may extend in the left and right direction of the flexible circuit receiving portion 102 in the terminal receiving groove 1311. The first hook portion 1101b covers at least the upper portion of the hinge shaft 131.

Referring to FIG. 11, a latching portion 1313 may be provided on another portion of the plurality of terminal accommodating grooves 1311. The end of the latching part 1313 may be formed to be bent in a downward direction. The second hook portion 1102b and the engaging portion 1313 can be engaged with each other so as to overlap in the front-rear direction.

The first hook portion 1101b covers at least the upper portion of the hinge shaft 131 and the second hook portion 1102b covers the lower portion of the latching portion 1313. The actuator 130 is rotatably supported by the terminal 110 Can be supported.

A pressing protrusion 134 may be provided on the bottom surface of the hinge portion 131. The pressing protrusion 134 may protrude from the actuator 130 so as to be spaced along the longitudinal direction of the actuator 130. The pressing projection 134 can press the upper surface of the flexible circuit 10 housed in the flexible circuit receiving portion 102. [ The upper surface of the flexible circuit 10 accommodated in the flexible circuit accommodating portion 102 can be pressed and fixed while the actuator 130 is arranged to cover the flexible circuit accommodating portion 102. [

A first opening groove 133a may be formed at the front end of the lid part 133. [ The first opening groove 133a is recessed in the bottom surface of the front end of the lid part 133 so that the fingertip can be inserted into the first opening groove 133a. The lid part 133 of the actuator 130 can easily open the lid part 133 with the fingers using the first opening groove 133a in a state in which the lid part 133 of the actuator 130 is arranged to cover the flexible circuit receiving part 102. [

A plurality of second open grooves 133b may be formed at the front end of the lid portion 133. [ The second opening groove 133b may be formed on both sides of the lid portion 133 with the first opening groove 133a inside. The second opening groove 133b has the same function as the first opening groove 133a and the depths of the first and second opening grooves 133a and 133b may be different from each other.

FIG. 12 is a perspective view showing a folded state of the flexible circuit 10 according to the present invention. FIG. 13A is a conceptual view for explaining a circuit portion 14 provided on the bottom of the flexible circuit 10 in FIG. 12 is a conceptual view for explaining a shielding portion 12a provided on the upper surface of the flexible circuit 10 in FIG.

The flexible circuit 10 is flexible in the form of a thin film and can be bent. 12 shows a state in which the flexible circuit 10 is bent. The flexible circuit 10 has a plurality of electrode lines. A part of the plurality of electrode lines is exposed to the outside for electrical connection with the circuit part of the circuit board 20. [ Most of the plurality of electrode lines are covered by the covering material and are insulated from the outside, but a part of the plurality of electrode lines may be exposed to the outside so as to be connected to the terminal 110. [

As shown in Fig. 13A, the circuit portion 14 is provided on the bottom surface of the flexible circuit 10. The circuit portion 14 is disposed at one end of the bottom surface of the flexible circuit 10. The circuit portion 14 is a part of a plurality of electrode lines. The circuit portion 14 is disposed in a direction transverse to the left and right side edge portions of the flexible circuit 10.

As shown in Fig. 13B, the shielding film 12 is attached to the upper surface of the flexible circuit 10. An adhesive is applied to one surface of the shielding film 12, and the shielding film 12 is attached to the flexible circuit 10.

The shielding film 12 is provided to shield the electromagnetic interference from the connection structure of the terminal 110 and the flexible circuit 10.

For this purpose, the shielding film 12 is formed of a metal material such as a copper thin film, an aluminum sheet or the like, which is a conductive material.

The shielding film 12 includes a shielding portion 12a. The shielding portion 12a is disposed on the upper surface of the flexible circuit 10. The shielding portion 12a is disposed so as to cover at least a part of the circuit portion formed on the bottom surface of the flexible circuit 10. [ The shielding portion 12a may be arranged to overlap with the circuit portion 14 of the flexible circuit 10 in the thickness direction. 7 to 9, 13A and 13B and the like, the contact portion 12b does not overlap with the circuit portion 14 of the flexible circuit 10 in the thickness direction.

The shielding portion 12a includes a plurality of contact portions 12b. The contact portion 12b is formed so as to project toward the rim of the flexible circuit 10 at one corner of the shielding portion 12a. A part of each of the first and second ground connecting members 120a and 120b is brought into contact with the contact portion 12b in a state where one end of the flexible circuit 10 is inserted into the flexible circuit receiving portion 102 of the housing 101 .

Hereinafter, a shielding structure and a method in a connection structure between the flexible circuit 10 and the terminal 110 using the ground connecting members 120a and 120b according to the present invention will be described with reference to FIG.

The electrical connector 100 is mounted on the upper surface of the circuit board 20. [ Each of the first and second ground connecting members 120a and 120b is provided at both ends of the housing 101 of the electrical connector 100. [ One side of each of the first and second ground connecting members 120a and 120b (the first ground connecting portion 123) is in contact with the grounding portion 21 formed on the upper surface of the circuit board 20, The other one of the two ground connecting members 120a and 120b (the second ground connecting portion 124) is brought into contact with the shielding portion 12a or the contact portion 12b of the flexible circuit 10 accommodated in the flexible circuit receiving portion 102 , The shielding portion 12a of the flexible circuit 10 is electrically connected to the grounding portion 21 of the circuit board 20.

The shielding portion 12a of the flexible circuit 10 connected to the grounding portion 21 of the circuit board 20 via the first and second ground connection members 120a and 120b is connected to the circuit portion 14 of the flexible circuit 10 The electromagnetic wave interference in the connection structure of the terminal 110 and the flexible circuit 10 can be shielded.

The electromagnetic wave can be generated in the interior of the housing 101, that is, at a connection to which the terminal 110 and the circuit portion 14 of the flexible circuit 10 are connected, or can be generated outside the housing 101.

Electromagnetic waves generated from the terminal 110 and the circuit portion 14 of the flexible circuit 10 are reflected while being struck against the shield 12a of the flexible circuit 10 or through the ground connection members 120a and 120b 20 can be shielded by the flow to the ground.

The electromagnetic waves generated from the outside of the housing 101 are reflected while hitting the shielding portion 12a of the flexible circuit 10 or reflected by the grounding portion 21 of the circuit board 20 through the grounding connection members 120a and 120b. As shown in FIG.

Meanwhile, the electrical connector 100 of the present invention can be applied to a display device. For reference, as an example of the display device, a TV can be considered.

The display device includes a display unit for outputting visual information, a circuit board 20 for controlling the display unit 20, and an electrical connector 100 of the present invention mounted on the circuit boards 20 and 20.

For example, a plurality of light emitting devices are mounted on the circuit boards 20 and 20 to output light according to a control signal. Each of the plurality of light emitting devices may be spaced apart from each other at predetermined intervals along the extending direction of the circuit boards 20 and 20. The light emitting element may be, for example, an LED (Light Emitting Diode) or any other electronic element having a high brightness.

The power supply unit may be electrically connected to the circuit boards 20 and 20 through a connector assembly including the electrical connector 100 of the present invention to supply power to the light emitting elements.

A shielding material in which at least one material selected from among permalloy foil, silicon steel sheet and amorphous strip having good permeability can be attached instead of the shielding film 12 on the upper surface of the flexible circuit 10 have.

The shielding material having a good magnetic permeability may cover the magnetic field generating source or cover the terminal 110 and the damaged part so that the magnetic field can flow over the surface of the shielding material to the other part.

Further, a radio wave absorber may be attached to the upper surface of the flexible circuit 10. [

Unlike the shielding film 12, the electromagnetic wave absorber absorbs incident electromagnetic noise and changes it into heat, so that a reflected wave of electromagnetic waves is not generated. According to such a radio wave absorber, it is possible to suppress the noise causing malfunction of the electronic device, suppress the mutual interference between the circuit boards 20 and dielectric coupling in the proximity substrate, and improve the reception sensitivity of the antenna. In addition, it is possible to reduce the human influence due to electromagnetic waves.

It will be apparent to those skilled in the art that various modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended claims. will be.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. .

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

10: Flexible circuit 11: Fixing groove
12: shielding film 12a:
12b: contact portion 14:
20: circuit board 21: grounding part
100: electrical connector 101: housing
102: flexible circuit accommodating portion 103: protruding portion
103a: seating groove 103b: protruding jaw
103c: Fixing projection 104: Insertion hole
110: Terminal 1101: Terminal 1
1101a: first contact projection part 1101b: first hook part
1101c: first arm portion 1102: second terminal
1102a: second contact projection part 1102b: second hook part
1102c: second arm portion 1101d, 1102d: circuit board connection portion
120a: first ground connecting member 120b: first ground connecting member
121: upper mounting portion 122: side mounting portion
123: first ground connection 124: second ground connection
124a: curved portion 125: first extending portion
126: second extension part 126a:
130: actuator 131:
1311 Terminal accommodating groove 1312: Hinge shaft
1313: latching part 132: hinge projection
133: lid part 133a: first opening groove
133b: second opening groove 134: pressing projection
135: recessed part

Claims (17)

A housing having a flexible circuit accommodating portion for accommodating one end of the flexible circuit;
A plurality of terminals mounted on the housing and connected to the flexible circuit, at least a part of which is exposed to the flexible circuit accommodating portion and accommodated in the flexible circuit accommodating portion;
An actuator which is rotatable to open and close the flexible circuit accommodating portion and which presses the upper surface of the flexible circuit accommodated in the flexible circuit accommodating portion to cover the flexible circuit accommodating portion; And
A first ground connecting member and a second ground connecting member formed of a metal material and mounted on both sides of the housing,
Wherein each of the first and second ground connecting members comprises:
A first ground connection portion disposed on a bottom surface of the housing and mounted on a ground portion of the circuit board; And
A second ground connection part which is spaced upward from the bottom surface of the flexible circuit receiving part at a predetermined interval and is in contact with the shielding part provided on the upper surface of the flexible circuit while the flexible circuit is accommodated in the flexible circuit receiving part;
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Protruding portions are formed on both sides of the flexible circuit receiving portion in an upward direction,
A protruding protrusion protruding from the upper portion of the protruding portion to the flexible circuit accommodating portion and disposed to cover a part of the flexible circuit accommodated in the flexible circuit accommodating portion,
Wherein each of the first and second ground connecting members includes a mounting portion that extends along the side surface of the protrusion and the protruding jaw and connects the first ground connection portion and the second ground connection portion, And is supported on an upper portion
Wherein the second ground connection portion is formed by bending downwardly inclined from the upper surface of the mounting portion toward the rear of the flexible circuit receiving portion so that a curved surface portion formed at a lower end portion of the second ground connection portion forms a contact portion of the flexible circuit inserted into the flexible circuit accommodating portion And is configured to be elastically pressed,
Wherein the contact portions extend so as to protrude from both side edges of the shielding portion and are disposed so as to overlap with each other in a thickness direction of the circuit portion formed on the bottom surface of the flexible circuit. The method according to claim 1,
Wherein a part of the second ground connection part is covered by the actuator while the actuator is arranged to cover the flexible circuit receiving part,
And the actuator has a recess portion corresponding to a portion of the second ground connection portion. delete The method according to claim 1,
Wherein,
An upper mounting part seated on one side of the upper surface of the housing; And
And a side attachment portion extending downward from the upper mounting portion and inserted into an insertion hole formed in the housing and connected to the first ground connection portion. delete 5. The method of claim 4,
Wherein a seating groove is formed on both upper surfaces of the housing and the upper mounting portion is seated in the seating groove and disposed on the same plane as the upper surface of the housing. The method according to claim 1,
And fixing protrusions that are fitted in the fixing grooves formed on both sides of the flexible circuit are formed on both sides of the flexible circuit receiving portion so as to protrude upward. 8. The method of claim 7,
And the protruding jaws are spaced apart from each other so as to overlap with the fixing protrusions in the vertical direction. The method according to claim 1,
The actuator includes:
An actuator body portion having a hinge portion rotatably mounted on the plurality of terminals and a lid portion extending from the hinge portion so as to open and close the flexible circuit receiving portion; And
And hinge projections formed laterally at both ends of the actuator body portion. 10. The method of claim 9,
The actuator includes:
Further comprising a plurality of pressing protrusions protruding downward from a bottom surface of the hinge portion to press the upper surface of the flexible circuit inserted into the flexible circuit receiving portion. 10. The method of claim 9,
Wherein each of the first and second ground connecting members comprises:
A first extension extending rearward of the housing to cover an upper portion of the hinge protrusion in the mounting portion; And
And a second extending portion extending from the mounting portion to the rear of the housing to support a lower portion of the hinge projection. 12. The method of claim 11,
Wherein each of the first and second ground connecting members comprises:
And a locking protrusion formed at an end of the second extension and inserted and coupled to a rear surface of the housing. 10. The method of claim 9,
Wherein the plurality of terminals include a plurality of first terminals and second terminals spaced apart along the lateral direction of the housing and rotatably supporting the hinge portion,
Wherein the first terminal comprises:
A first contact protruding portion exposed to the flexible circuit receiving portion and configured to be able to contact a part of a circuit portion provided on a bottom surface of the flexible circuit; And
And a first hook portion disposed on the first contact protruding portion and surrounding a part of the hinge portion,
The second terminal,
A second contact protruding portion exposed to the flexible circuit receiving portion, the second contact protruding portion being contactable with another portion of the circuit portion of the flexible circuit; And
And a second hook portion disposed on the second contact protruding portion and surrounding another portion of the hinge portion. An electrical connector, mounted on a circuit board, according to any one of claims 1, 2, 4, 6 to 13;
And a flexible circuit inserted in a flexible circuit accommodating portion provided in the electrical connector,
The flexible circuit includes:
A circuit part formed along the lateral direction on the bottom surface and in contact with a plurality of terminals provided on the electrical connector; And
And a shielding film formed on the upper surface of the shielding film so as to cover the circuit portion and shielding electromagnetic interference between the plurality of terminals and the circuit portion. 15. The method of claim 14,
Wherein the shield is formed of a metal material and is disposed to overlap the circuitry. delete A display unit for outputting time information;
A circuit board for controlling the display unit;
An electrical connector mounted on the circuit board and according to any one of claims 1, 2, 4, 6 to 13; And
And a flexible circuit in which one end portion is inserted into the flexible circuit receiving portion of the electrical connector,
The flexible circuit includes:
A circuit part formed along the lateral direction on the bottom surface and in contact with a plurality of terminals provided on the electrical connector; And
And a shielding film formed on the upper surface of the shielding film so as to cover the circuit section and shielding electromagnetic interference between the plurality of terminals and the circuit section.

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