KR100677182B1 - Electric Connector with Lever - Google Patents

Abstract

The present invention relates to an electrical connector, and more particularly, in a flexible printed circuit board (FPC) inserted between the lever and the main body according to the opening and closing of the lever, or in an electrical connector to which the flexible flat wire (FFC) is pressed and fixed. The present invention relates to an electrical connector that can operate a lever easily and maintain a more firmly closed state. The structure of this invention is provided so that rotation is possible to the said main body in the electrical connector for pressing and fixing a flexible printed circuit board or a flexible flat electric wire to the main body of an electrical connector, The said flexible printed circuit board or the flexible flat electric wire is a said main body. A lever main body which presses while pressing the pivoting portion toward the flexible printed circuit board or the flexible flat wire by moving the handle portion on the outside after being inserted into the flexible printed circuit board; A contactor for contacting the flexible printed circuit board or the flexible flat wire; And a rectangular main body in which the lever main body is fixed at one side and the contactors arranged in a row are accommodated.

According to the present invention, in the electrical contactor for fixing a flexible printed circuit board or flexible flat wire by rotating the lever, the force required for rotation of the lever main body can be set through a shape deformation such as a central axis, so that the lever main body is locked. Or it has the effect of preventing the rotation or loosening by locking itself in the open state.

Description

Lever Fixed Electrical Connectors {Electric Connector with Lever}

1 is a view showing the appearance of a conventional electrical connector.

2 is a view showing an open state of a lever of a conventional electrical connector.

3 is a view showing a closed state of a lever of a conventional electrical connector.

4 is a view showing the front of the electrical connector of the present invention.

5 is a view showing a separate lever of the present invention.

6 is a cross-sectional view taken along the line A-A of FIG.

7 is a view showing a contact state between the finger portion and the central axis in the closed state of the lever of the present invention.

8 is a view showing the finger portion and the central axis position in the state that the lever of the present invention is open.

9 is a view showing an operation of opening and closing the lever of the present invention from the side.

<Description of Signs of Major Parts of Drawings>

10: electrical connector 12: main body

20: lever body 22: handle portion

24: central axis 24a: protrusion

24b: open contact surface 24c: closed contact surface

24d: center of rotation 26: fixed protrusion shaft

28: pressurization portion 29: groove portion

30: contact 32: finger portion

32a: contact

The present invention relates to an electrical connector, and more particularly, in a flexible printed circuit board (FPC) inserted between the lever and the main body according to the opening and closing of the lever, or in an electrical connector to which the flexible flat wire (FFC) is pressed and fixed. The present invention relates to an electrical connector that can operate a lever easily and maintain a more firmly closed state.

A typical lever retractable electrical connector has a configuration as shown in FIG. Referring to FIG. 1, the electrical connector 100 includes a main body 110 into which the FPC / FFC is inserted forward, and a plurality of electric connectors 100 inserted into the main body 110 from the rear of the main body 110 and connected to the FPC / FFC. Contactor 120, a lever body 130 for fixing the FPC / FFC to the body 110, and a fitting nail 140 for supporting the lever body 130. Reference numeral 112 is a fixed arm.

2 and 3 are views showing an open state and a closed state of a lever of a conventional electrical connector. Referring to FIG. 2, front and rear ends of the main body 110 are formed with seating slots to which the end of the FPC / FFC is inserted and seated. The rear ends of the lever main body 130 are provided at both sides of the main body 110. Fixed arms 112 are fixed at both sides thereof.

The fixed arm 112 is integrally formed at both sides of the main body 110, and a boss (not shown) of the lever main body 130 is inserted between the rear end of the main body 110 and the rear end of the fixed arm 112. Insertion portion 115 is formed, the front end of the fixing arm 112 is formed a nail insertion portion 116 is inserted into the top of the fitting nail 140 is fixed.

Meanwhile, locking grooves (not shown) in which the locking protrusion 131b of the lever body 130 is inserted and locked are formed at one side of the front end of the fixed arm 112 adjacent to the side wall of the seating slot (not shown). At the rear end of the fixed arm 112, a cam part fixing groove (not shown) in which the cam part 135 of the lever body 130 is rotatably inserted is formed in the front-rear direction.

The contact piece 131 is installed on the main body 110 by the cam part 135 so as to be rotatable back and forth. On both sides thereof, the contact piece 131 rotates forward to close the seating slot (not shown). A seating portion 131a seated on an upper surface of both side walls of the wall (not shown) is formed to be stepped, and the contact piece 131 is rotated forward on both sides of the front end portion of the seating portion 131a to seat the end of the FPC / FFC. The locking protrusion 131b is inserted into the locking groove (not shown) of the fixing arm 112 to lock the close contact 131 when the fixing arm 112 is fixed to the locking arm 112.

In this conventional lever body 130, the locking projection 131b of the close contact piece 131 side in order to maintain the closed state was used a male and female coupling to the locking groove (not shown). In order to prevent the lever body 130 from being closed, the locking protrusion 131b and a locking groove (not shown) should be formed. According to the conventional method, a separate locking protrusion 131b and a locking groove (not shown) should be formed, which is cumbersome to manufacture, and simply supports the coupling only at two places at both ends.

The present invention is to solve the above problems and to provide an improved method, and only by slightly modifying the shape of the central axis or the fixed protrusion shaft of the lever body, the closed state of the lever body is opened by itself or opened. It is an object of the present invention to provide an electrical connector that prevents it from being closed in a state.

The configuration of the present invention for achieving the above object is, in the electrical connector for pressing and fixing the flexible printed circuit board or the flexible flat wire to the main body of the electrical connector, is provided to be rotatable to the main body, the flexible print A lever body for moving the outer handle part after the substrate or the flexible flat wire is inserted into the main body to press the pressing part while rotating toward the flexible printed circuit board or the flexible flat wire; A contactor for contacting the flexible printed circuit board or the flexible flat wire; And a rectangular main body in which the lever main body is fixed at one side and the contactors arranged in a row are accommodated.

The lever body includes a central axis which is the center of rotation and a fixed protrusion shaft protruding at both ends of the center side to be fixed to the side, the contact includes a finger portion in contact with the central axis or the fixed protrusion shaft It features one.

The central axis includes: an open contact surface and a closed contact surface to be connected, the open contact surface is in line or surface contact with the finger portion when the lever body is opened, and the closed contact surface is connected with the finger portion when the lever body is closed. Characterized in that the line contact or surface contact.

A protrusion is formed between the open contact surface and the closed contact surface.

The fixed protrusion shaft includes: an open contact surface and a closed contact surface connected to each other, the open contact surface is in line or surface contact with the finger portion when the lever body is opened, and the closed contact surface is the finger portion when the lever body is closed. It is characterized in that the line contact or surface contact with.

The handle portion of the lever body is characterized in that the groove portion is formed so that the finger is easy to rotate the lever body.

Hereinafter, with reference to the drawings of an embodiment described in the accompanying drawings, it will be described in detail the configuration of the present invention as described above.

4 is a view showing the front of the electrical connector of the present invention, Figure 5 is a view showing the separation of the lever. 4 and 5, in the electrical connector 10 of the present invention, the lever main body 20 is fixedly coupled to the main body 12, and a plurality of contacts 30 are arranged in a line inside. The lever body 20 includes a fixed protrusion shaft 26 for fixing the left and right sides and a central shaft 24 connected between the fixed protrusion shafts 26 on both sides thereof, and a handle part for rotating the lever body 20 ( 22) is on the opposite side.

As the lever body 20 is rotated through the handle part 22, the pressing part 28 on the lower side pushes the FPC / FFC toward the contactor. The groove portion 29 is formed on the side of the handle portion 22 so as to easily lift the handle portion 22. Since the width of the electrical connector 10 is often only about 1 to 2 cm, there is a point that it is difficult for the user to easily move the handle portion 22. To this end, the groove 29 is formed, and the groove 29 is a recess inward of the handle part 22 or a box-shaped edge formed on the upper side of the handle part 22 and the groove is formed inward. Through the groove portion 29, the user's fingertip portion can easily rotate the handle portion 22.

6 is a cross-sectional view taken along the line A-A of FIG. Referring to FIG. 6, the central shaft 24 of the lever body 20 is in contact with and supported by the finger portion 32 of the contactor 30 coupled with the body 12, and has a protruding pressing portion 28 below. Is formed.

The finger part 32 of the contactor 30 is located on the upper side and supports the upper side of the central axis 24. The contactor 30 extends below the finger portion 32 to bring the FPC / FFC into contact with the pressing portion 28 below the pressing portion 28 of the lever body 20. According to the present invention, the shape of the central shaft 24 or the shape of the fixed protrusion shaft 26 is modified so that the force required for the rotation of the lever body 20 varies depending on the position.

7 is a view showing a contact state between the finger portion and the central axis in the closed state of the lever of the present invention. Referring to FIG. 7, the flat closed contact surface 24c above the central axis 24 is in contact with the lower contact surface 32a of the finger part 32. The closed contact surface 24c is a surface which contacts the finger part 32 in the state which the lever main body 20 is closed.

An open contact surface 24b is formed on one side of the closed contact surface 24c. The open contact surface 24b is a surface which contacts the finger part 32 in the state in which the lever main body 20 is open, and the protrusion part 24a is formed between the open contact surface 24b and the closed contact surface 24c.

The protruding portion 24a has a radius of the smaller portion of the distance between the center of rotation 24d of the central axis 24 and the closed contact surface 24c or the center of rotation 24d of the central axis 24 and the open contact surface 24b. It is a part which protrudes more than the perimeter of the circle centering on the rotation center 24d. The protrusion 24a may be formed in various shapes, and the required strength or operation method for rotation may be slightly different according to the shape.

Since it is necessary to have a function of preventing the opening of the central shaft 24 from the center of rotation 24d and the closed contact surface 24c mainly because of its close function, the center of rotation 24d of the central shaft 24 and the open contact surface ( Shorter than the length between 24b). In this case, since the finger part 32 supports the closed contact surface 24c downward, when the lever body 20 needs to be opened, the protrusion part 24a must push the finger part 32 upward, due to the repulsive force. Rotation is not easy.

8 is a view for explaining the position of the finger portion and the central axis in the open state of the lever of the present invention. Referring to FIG. 8, the central axis 24 rotates about the center 24d so that the open contact surface 24b abuts on the contact surface 32a of the upper finger portion 32. As the lever body 20 rotates, the contact surface 32a passes through the protrusion 24a on the closed contact surface 24c and comes into contact with the open contact surface 24b.

As shown in FIG. 8, when the open contact surface 24b is positioned upward, the open contact surface 24b protrudes upward from the contact surface 32a of the finger portion 32. Therefore, the finger portion 32 should be lifted upward. The metal finger portion 32 is slightly deformed within the elastic range and presses the protrusion 24a downward. Therefore, in order to rotate the lever main body 20 until the contact surface 32b of the dog contact surface 24b and the finger portion 32 comes into close contact with each other, the projection portion 24a is the contact surface 32a of the finger portion 32. You need to lift it up to the highest point and force it through. Therefore, when the force is insufficient, the lever body 20 is not easily rotated.

9 is a view showing an operation of opening and closing the lever of the present invention from the side. 9, the lever body 20 is rotated according to the relative angle of the closed contact surface 24c and the open contact surface 24b of the central axis 24 or the fixed protrusion shaft 26 and the shape of the protrusion 24a. The range of rotation is determined.

When the closed contact surface 24c and the open contact surface 24b are in close contact with and in contact with the contact surface 32a of the finger portion 32, that is, when the closed contact surface 24c and the contact surface 32a meet, the lever body is in the position A. 20 is located, and when the contact surface 24b and the contact surface 32a meet, the lever main body 20 is located in the position of B. As shown in FIG. When the contact surface 32a is in contact with a point other than the closed contact surface 24c and the open contact surface 24b, the contact surface 32a is brought into contact with the closed contact surface 24c or the open contact surface 24b by elastic pressing of the finger portion 32. Rotate the lever body 20. Therefore, the lever body 20 is stably positioned only at the position of A or B, and is not easily moved.

In addition, since a plurality of dogs 32 and a plurality of dogs and closed contact surfaces 24b and 24c continuously formed on the central axis 24 and the fixed protrusion shaft 26 are arranged in close contact with each other, they are strongly supported. By doing so, it is possible to firmly maintain the bonding state. Therefore, even if some contact surface is broken or deformed, there is an advantage that can maintain a strong bonding force by the other contact surface.

According to the present invention, in the electrical contactor for fixing a flexible printed circuit board or flexible flat wire by rotating the lever, the force required for rotation of the lever main body can be set through a shape deformation such as a central axis, so that the lever main body is locked. Or it has the effect of preventing the rotation or loosening by locking itself in the open state.

Claims (7)

In the electrical connector for pressing and fixing a flexible printed circuit board or a flexible flat wire to the main body of the electrical connector, A lever main body rotatably installed on the main body, the lever main body pressing the pressing part while rotating toward the flexible printed circuit board or the flexible flat electric wire by moving an outer handle part after the flexible printed circuit board or the flexible flat electric wire is inserted into the main body; A contactor for contacting the flexible printed circuit board or the flexible flat wire; And And a rectangular body in which the lever main body is fixed at one side and the contactors arranged in a row are accommodated therein. The method of claim 1, The lever body includes a central axis which is the center of rotation and a fixed protrusion shaft protruding at both ends of the center side to be fixed to the side, And the contact portion includes a finger portion which contacts the central axis or the fixed protrusion shaft. The method of claim 2, wherein the central axis is: It is configured to include an open contact surface and a closed contact surface, When the lever body is opened, the open contact surface is in contact with the finger portion, And the lever body is in contact with the finger portion when the lever body is closed. The method of claim 3, wherein And a protrusion is formed between the open contact surface and the closed contact surface. The method of claim 2, wherein the fixed protrusion shaft is: It is configured to include an open contact surface and a closed contact surface, When the lever body is opened, the open contact surface is in contact with the finger portion, And the lever body is in contact with the finger portion when the lever body is closed. The method of claim 5, And a protrusion is formed between the open contact surface and the closed contact surface. The method of claim 1, And a groove portion is formed in the handle portion of the lever body so that a finger easily rotates the lever body.

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