KR101443523B1 - Contact - Google Patents

Abstract

The present invention relates to a connection device for surface mounting mounted on such a printed circuit board (PCB) which can prevent transformation of a connection unit caused by an impact or interference applied from the outside. The connection device in the present invention for the same includes a fixed plate fixed to a PCB; an elastic unit rolled upward from the back surface of the fixed plate; and a connection unit extended upward in a certain height from the elastic unit to be connected with an external terminal. The connection device also has a double wall structure having two vertical walls integrally bent toward the front of the connection unit from the front surface of the fixed plate to be continuously connected to face the front and the back, while including a front wall body shielding the front side of the connection unit in a form of having the end fixed on the PCB.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a connection apparatus for mounting electrical connections between electronic components mounted on a PCB or the like, and more particularly to a connection apparatus for surface mounting that can prevent deformation of a connection portion caused by external impact or interference.

BACKGROUND ART [0002] In general, a surface mounting connection (contact) is used for electrical contact or signal transmission of two or more electronic components, and includes an antenna connection terminal of a communication device, a charging terminal of a battery charging device, And the contact terminal to which the terminal is connected.

For example, in the case of a mobile communication terminal such as a mobile phone, a PCB is installed in the main body of the mobile phone, an antenna is provided on one side of the main body of the mobile phone, a PCB contact part formed on one side of the PCB, A connection device capable of being elastically contacted between the antenna contact portions is mounted so that the antenna and the PCB are electrically connected to each other.

1 is a perspective view showing a general form of a surface mount connection apparatus. The connection apparatus 100 includes a fixing plate 110 fixed to a PCB substrate, a connection portion 140 connected directly to the external terminal, An elastic part 120 for applying elasticity to the connection part 140 when a connection is made to the connection part 140 and a support part 130 for connecting the elastic part 120 and the connection part 140.

Therefore, the connecting device is capable of appropriately dispersing the deformation load while balancing the elastic force by the elastic portion and the reaction force by the support portion, and by making the connection between the electronic parts electrically connected And the like.

However, such a connecting device has a free end shape in which the end portion of the connecting portion is not constrained, and is spaced from the holding plate at a predetermined interval (space), so that the connecting portion is easily deformed by impact and interference externally applied to the connecting device, There is a problem that the function is deteriorated.

For example, there is a problem that the glove or the like worn by an operator at the time of handling the connection device frequently gets caught in the space between the connection portion and the fixing plate, thereby causing the connection portion to be lifted up and deformed.

If deformation of the connecting portion occurs for various reasons, the restoring force of the connecting portion is deteriorated, leading to deterioration of the connecting performance. As a result, the overall performance of the connecting device deteriorates and the quality deteriorates.

In this connection, as shown in Fig. 2, a " connection terminal for mobile phone " of Korean Patent Laid-Open Publication No. 10-2012-0022314 includes a vertical wall body 130 on the front side of the fixing plate 100, And the like.

Here, the vertical wall 130 can block the front surface and the side surface of the connection portion 120 from impact and interference externally applied to the connection device in the form of a vertically erected wall.

However, since the vertical wall 130 is a single plate having a thickness of the material, when the external force exerted from the outside of the connecting device is greater than the strength of the material, the vertical wall is deformed to be bent, 133 and the side wall 131 are bent at a right angle from each other and bent together from the fixing plate, any one of the front wall 133 or the side wall 131 at the time of bending may have a free end structure in which the lower end thereof is not fixed In this case, a wall whose lower end is not fixed easily deforms from an external force externally applied.

When the vertical wall is deformed as described above, it can not function properly as a wall for protecting the connection part. When the vertical wall is deformed very much, the downward movement of the connection part is restricted, .

In addition, since the vertical wall 120 has a vertically raised thickness, it is possible to prevent damage to the external terminal due to sharp edges on the external terminal when the external terminal contacts the vertical wall with a large force .

Korean Patent Publication No. 10-2012-0022314

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a double wall structure having a predetermined width for protecting a connection portion of a connection device from an external shock or interference, Which can prevent the external terminal from being damaged, thereby preventing the contact performance of the product from deteriorating and improving the reliability of the quality, The purpose of the device is to provide.

The configuration of the surface mount connecting device for achieving this object is as follows.

An elastic portion bent upward from a rear surface of the fixing plate; a connecting portion extending upward from the elastic portion to a predetermined height and connected to an external terminal; and a connecting portion connected to the front portion of the fixing plate integrally A pair of front walls for blocking the front side of the connection portion are formed so as to have a double wall structure in which two perpendicular walls to be bent are continuously connected to each other in a front and back direction, And are formed on both left and right sides of the fixing plate at regular intervals.

The front wall may include a pedestal extending horizontally from the center of the front plate, a side extension extending horizontally from both sides of the pedestal, and a first vertical member A curved member bent at a predetermined curvature from the first vertical member and a second vertical member bent from the curved member and facing the first vertical member and fixed to the PCB substrate, A pair of tunnel-type walls.

Wherein the pedestal extends horizontally with a width smaller than the width of the fixing plate, the first vertical member extends to the front surface of the side extension, and the end of the second vertical member is spaced from the space between the side extension and the fixed plate And is fixed to the PCB substrate.

Further, the front wall further includes a connection portion formed on the pedestal and connecting the second vertical members constituting the pair of tunnel-type walls to each other.

The connecting portion has a shape with a predetermined radius of curvature and an upward convex shape and extends in a direction in which the end portion faces the fixing plate. The portion of the connecting portion facing the fixing plate has a sharp shape Respectively.

The fixing plate is provided with two vertical members, which are integrally bent in the fixing plate and are opposed to each other, and a top end of the two vertical members, The branch further includes a stopper made of an arch member.

The surface mount connecting apparatus provided in the present invention has the following advantages.

First, the front wall provided at the front side of the connection part has a double wall structure which has a width wider than the thickness of the material, and which is continuously connected to the front and back at regular intervals, so that the deformation There is an advantage that the impact resistance which does not occur is improved.

Secondly, the front wall made of a double wall is provided as a pair of left and right front sides of the connecting device, and is connected through the connecting portion to distribute the load, thereby improving durability.

Third, since the upper surface of the front wall is rounded in a curved shape, when the external terminal contacts the front wall with a large force, it does not damage the external terminal, thereby improving the reliability of the product.

1 is a perspective view showing a conventional conventional surface mounting connection device;
2 is a perspective view showing a connecting device for surface mounting with a conventional front wall;
3 and 4 are perspective views showing a connection device for surface mounting according to an embodiment of the present invention.
5 is a plan view showing a connection device for surface mounting according to an embodiment of the present invention.
6 is a bottom view showing a surface mounting connecting apparatus according to an embodiment of the present invention;
7 is a cross-sectional view illustrating an operation procedure of the surface mount connecting apparatus according to the embodiment of the present invention

Before describing the present invention in detail, the directional references of 'front', 'rear', 'front' and 'rear', as used in the description and claims of the present invention, The direction is set to 'front' and 'front', and the opposite direction is set to 'back' or 'rear'.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 are perspective views showing a connection device for surface mounting according to an embodiment of the present invention. 5 and 6 are a plan view and a bottom view showing a surface mounting connecting apparatus according to an embodiment of the present invention.

As shown in FIGS. 3 to 6, the surface mount connecting device 100 is manufactured by press-forming or forming a plate-shaped conductive metal, and has a fixing plate 10 fixed to a PCB substrate, An elastic portion 20 for dispersing a load applied to the connecting portion 40; a supporting portion 30 for connecting the connecting portion 40 and the elastic portion 20; a connecting portion 40 for connecting the connecting portion 40 and the elastic portion 20; A stopper 50 for restricting the degree of pressing and a front wall 60 for protecting the front of the connection portion 40 are continuously connected to each other to form an integral body.

Here, the fixing plate 10 can be electrically connected to the PCB substrate through soldering or the like in the form of a flat plate.

 The elastic part 20 is formed in a semicircular or semi-elliptical shape having a predetermined radius of curvature at the rear surface of the fixing plate 10 and is bent upward. The elastic part 20 is elastically deformed when the connection part 40 is connected to the external terminal, 40).

The connecting portion 40 is a portion connected to an external terminal and has an upwardly inclined posture at an end portion of the supporting portion 30 extending horizontally from the elastic portion 20 and a convex shape having a predetermined curvature radius And the end portion thereof extends in the direction toward the fixed plate 10. [0035]

In addition, the portion of the connecting portion 40 facing the fixed plate 10 has a pointed shape with its width becoming narrower toward its end portion. Thus, smooth operation can be achieved without interference of the tunnel-shaped wall body 63 when the connecting portion 40 is lowered due to the connection with the external terminal. At this time, when a sufficient space is maintained between the tunnel-shaped wall 63 and the stopper 50, the connection portion 40 can be smoothly operated even if the end portion thereof does not have a pointed shape.

An embossing 40a is formed on the upper surface of the connecting portion 40 so as to protrude from the flat surface with a predetermined area. The embossing 40a is in contact with the external terminal side through the flat surface having the predetermined area, that is, the embossing 40a Therefore, a sufficient contact area can be ensured, and consequently, the connection performance can be improved.

The stopper 50 is a part that supports the connection part 40 from the bottom and serves to prevent the performance of the backside elastic part 20 from being lowered due to a load greater than a specified amount such as an impact applied to the connection part 40 do.

 That is, when the connection portion 40 is pressed too much, the load may be transmitted to the rear elastic portion 20 and the performance of the restoring force may be deteriorated. Therefore, when the stopper 50 presses the connection portion 40 It is possible to prevent the performance of the elastic portion 20 from deteriorating.

For this purpose, the stopper 50 is integrally bent and formed in a fixed plate 10 and is erected at a predetermined height. The stopper 50 includes two vertical members 50a and 50b and a semicircular arch member 50c connecting the two vertical members 50a and 50b. . That is, the stopper 50 is formed in the shape of "∩" as a whole.

At this time, the height of the stopper 50 is preferably set to a height up to the maximum movable distance of the connection portion 40.

Here, the maximum movable distance of the connecting part means a distance in which the connecting part can be lowered to the maximum within a range that does not deviate the limit elastic force of the elastic part when an abnormal external force is generated in the connecting device, do.

In addition, the present invention provides means for preventing deformation of the connection portion 40 from external impact or interference of the connection device 100.

For this, a front wall 60 is formed on the front surface of the fixing plate 10 so as to block a shock or interference from the front of the connection unit 40 while being raised to a predetermined height from the front of the connection unit 40.

Since the front wall 60 blocks the front of the connection portion 40, when the connection device mounted on the PCB substrate is transported, the operator's glove or the like is caught in the space between the connection portion 40 and the fixing plate 10 Therefore, the problem of deformation of the connection portion 40 can be solved.

The front wall 60 has a double wall structure in which two vertical wall bodies integrally bent from the front surface of the fixing plate 10 are continuously and in front of and behind each other, and the ends are fixed to the PCB substrate side.

At this time, the front wall 60 having the double wall structure can be manufactured in a single shape bent to the entire width of the fixing plate 10, but it is possible to reduce the loss of the material and make it easy to vertically bend the wall from the fixing plate 10 It is preferable that they are formed as a pair having a shape symmetrical with respect to the left and right sides of the fixing plate 10 at regular intervals.

The front wall 60 includes a pedestal 61, a side extension 62, a pair of tunnel-shaped walls 63, and a connecting portion 64.

The pedestal 61 is fixed to the PCB substrate through soldering or the like in a form of a horizontal length extending in a predetermined length from the center of the front surface of the fixed plate 10 and having a width smaller than that of the fixed plate 10. The pedestal 61 is fixed to the PCB substrate side together with the fixing plate 10 so that the area of contact of the connection device with the PCB substrate is increased so that the connection device can be more stably fixed to the PCB substrate.

The side extensions 62 extend horizontally from the center of the pedestal 61 to a predetermined length. At this time, the side extending portion 62 has a length that the end portion extends to the side surface of the fixing plate 10. [ The side extension portion 62 is also fixed to the PCB substrate side by soldering or the like, like the pedestal 61.

4, the bottom surface of the front wall 60 has a shape having a side extending portion 62 extending leftward and rightward from both sides of the pedestal 61 having a width smaller than that of the fixed plate 10 + "As a whole, the clamping force is improved on the PCB substrate, and the vertical wall constituting the tunnel-shaped wall 63 described later can be more easily bended.

The tunnel-shaped walls 63 are formed on the left and right side extensions 62 as a pair symmetrical to each other.

The tunnel wall 63 includes a first vertical member 63a bent vertically at a predetermined height from the front surface of the side extending portion 62 and a curved member 63c bent at a predetermined curvature from the first vertical member 63a, And a second vertical member 62b which is bent from the curved member 63c and extends to the pedestal 61 while facing the first vertical member 63a.

In other words, the tunnel-shaped wall body 63 is composed of a semicircular curved member 63c which is arranged before and after the vertical members 63a and 63b facing each other like the shape of the stopper 50, It is made in the shape of "∩" when viewed.

At this time, the end portion of the tunnel-shaped wall body 63, that is, the end portion of the second vertical member 62b passes through the empty space between the side extending portion 62 and the fixed plate 10, (See Figs. 7A and 7B).

As described above, the tunnel-shaped wall body 63 has a tunnel-like shape as a whole while two vertical walls are arranged back and forth, and the first vertical wall body 63a disposed on the front side is fixed to the PCB substrate side through the side extending portion 62 And the second vertical wall body 63b disposed at the rear side is fixed directly to the PCB substrate so that both ends of the double wall body are fixed to the PCB substrate.

At this time, it is preferable that the width w of each tunnel-shaped wall body 63 is 2 to 3 times the thickness t of the material.

As described above, the front wall 60 is fixed to the PCB substrate by a continuous vertical wall which is continuous at a predetermined interval, and the width of each vertical wall is made wider than the thickness of the material, The impact resistance that does not cause deformation due to the impact applied from the front surface or the side surface of the connecting device is improved as compared with the front wall made of a single vertical wall.

On the other hand, each of the second vertical members 62b forming a pair of adjacent tunnel-shaped walls 63 is integrally connected by a connecting portion 64. [

The connecting portion 64 is formed integrally with the inner surface of the second vertical member 62b constituting each tunnel-shaped wall body 63 with a horizontal posture directly above the fixing plate 10.

Such a connection portion 64 can bend the pair of tunnel-shaped walls 63 simultaneously by connecting the tunnel-shaped walls 63 made up of a pair of left and right walls, so that they have to be individually bended. When an external force is applied to a tunnel-shaped wall 63, an external force can be dispersed through the connecting portion 64, thereby improving the overall durability of the front wall.

The tunnel wall 63 constituting the front wall 60 is bent in the rear direction from the front side of the side wall extension 62. In the opposite case, It goes without saying that it is also possible to bend in the front direction from the rear surface of the extension portion 62. However, the latter has the disadvantage that it is not easy to process compared to the former.

Hereinafter, an operation in which a connection device having a front wall according to an embodiment of the present invention is connected to an external terminal will be described.

7 is a cross-sectional view illustrating an operation procedure of a surface mount connecting apparatus according to an embodiment of the present invention.

7, the front wall 60 functions as a wall for blocking the space between the connection portion 40 and the fixed plate 10 on the front surface of the connection device.

7, when the external terminal 70 such as an antenna or a battery is connected to the embossing 40a of the connection part 40, the connection part mounted on the PCB 30 has the elastic part 20, And is maintained in a connected state with the external terminal 70 while being primarily moved downward by a predetermined height.

At this time, the connection section 40 enters the space between the pair of tunnel-type vertical wall bodies 63 having the narrow end portion constituting the front wall 60, so that smooth operation can be performed.

The front wall 60 has a double vertical wall structure facing forward and backward while a first vertical member 63a disposed at the front is fixed to the PCB substrate side through the side extending portion 62, The end of the second vertical member 63b is directly fixed to the PCB substrate 80 through soldering (the black portion in FIG. 7) or the like, so that the second vertical member 63b is not easily deformed due to impact and interference from the outside of the connection device .

On the other hand, when a strong impact is applied, such as when a cellular phone falls on the floor, an abnormal external force may be applied to the connection device.

When the external terminal 70 is connected to the connecting portion 40 and the external force is further applied to the connecting portion 40, the connecting portion 40 is further lowered and the connecting portion 20 is caught by the upper end of the stopper 50, Falling is prevented.

At this time, the upper end of the front wall 60 is rounded in a curved shape, so that when the external terminal 70 contacts the front wall 60 with a large force, it is not damaged such as being stuck on the external terminal 70 .

100: connecting device 10: fixed plate
20: Elastic part 30: Support part
40: connecting portion 50: stopper
60: front wall 61: pedestal
62: side extension part 63: tunnel-shaped wall
63a: first vertical member 63b: second vertical member
63c: upper curved portion 64: connecting portion

Claims (8)

A fixing plate (10) fixed to the PCB substrate side;
An elastic part 20 bent upward from the rear surface of the fixing plate 10;
A connection part 40 extending upward from the elastic part 20 by a predetermined height and connected to an external terminal; And
The front end of the fixing plate 10 is integrally bent in front of the connecting portion 40 and has a double wall structure in which two vertical walls continuously extend forward and backward facing each other, A front wall (60) for blocking the front of the connection part
And a connecting member for connecting the surface-mounted circuit board.
The connecting device for surface mounting according to claim 1, wherein the front wall (60) is formed at both left and right sides of the fixing plate at a predetermined interval while being symmetrical with each other.
The method according to claim 1 or 2,
The front wall (60)
A pedestal (61) extending horizontally in the center of the front face of the fixing plate (10);
A side extension 62 extending horizontally from both sides of both sides of the pedestal 61;
A first vertical member 63a that is vertically bent at a predetermined height at each of the side surface extending portions 62, a curved member 63c that is bent at a predetermined curvature from the first vertical member 63a, and a curved member 63c And a second vertical member (63b) bent from the first vertical member (63a) and facing the front side and the rear side of the first vertical member (63a) and having an end fixed to the PCB substrate.
And a connecting member for connecting the surface-mounted circuit board.
The apparatus according to claim 3, wherein the pedestal (61) extends horizontally with a width smaller than the width of the fixing plate (10), the first vertical member (63a) extends from the front surface of the side extension (62) And an end portion of the vertical member (63b) passes through a space between the side extension (62) and the fixing plate (10) and is fixed to the PCB board.
4. The apparatus of claim 3, wherein the front wall (60) further includes a connecting portion (64) formed on the pedestal (61) for connecting the second vertical members (63b) forming a pair of adjacent tunnel- And the surface-mounted circuit board is connected to the ground.
The connector according to claim 3, wherein the connecting portion has a predetermined radius of curvature and a convex shape at an upper end thereof, the end portion of the connecting portion extending in a direction toward the fixing plate, Has a pointed shape that becomes narrower toward its end portion.
The surface mounting connection device according to claim 1, wherein the fixing plate (10) is provided with a stopper (50) for contacting the connecting portion (40) and limiting the degree of pressing of the connecting portion (40).
   The stopper 50 may include two vertical members 50a and 50b which are integrally bent in the fixing plate 10 and are opposed to each other and an upper end of the two vertical members 50a and 50b And an arch member (50c) having a predetermined radius of curvature.

Images