KR101589056B1 - Connector for printed circuit board - Google Patents

Abstract

The present invention relates to a connector for a printed circuit board. A technical point of the present invention relates to a connector populated on a printed circuit board. The connector has a structure shape of a plurality of high integrated pins and can be stably connected to a circuit board without a cold soldering failure by a stepped protrusion side of a first connection pin and an extension portion for providing a stable soldering connection portion. Especially, first and second connection pins corresponding to a male or a female structure enable a connection groove of an elastic structure and a contactor to improve conduction connectivity (an electric contact property) when coupling and assembling for conduction. Despite short connection time (around 3 to 4 seconds) when soldering and connecting through a surface mount device (SMD) line, the connector of the present invention can fundamentally solve a population failure or short-circuit anxiety while excellently securing quality of a product as electric conduction (connection) reliability is significantly improved.

Description

A connector for a printed circuit board

The present invention relates to a connector that is populated (soldered or fused) onto a printed circuit board, wherein the connector is mounted on the circuit board by a stepped surface and an extension to provide a stable solder joint, The first and second connecting pins corresponding to the male or female structure can be made to have a connection structure having an elastic structure and a contactor in the case of assembling for energization, (Solder joints) through the SMD (Surface Mount Device) device line to solve the problem of poor mounting or short circuit instability in spite of a short bonding time (about 3 to 4 seconds) And reliability of the printed circuit board can be remarkably improved and the quality of the product can be ensured to be excellent.

In recent electric and electronic industry, various products and parts tend to be reduced in size, simplification, and high performance.

In order to satisfy such a demand, a method of precisely mounting on a printed circuit board without changing the characteristics of various electric and electronic parts is absolutely required.

Accordingly, it is general that general electronic products can be manufactured through component selection, printed circuit board design, printed circuit board manufacturing, and SMD (Surface Mount Devices) process.

At this time, the conventional component selection can be performed after the circuit design of the electronic product, and it is a process of selecting the specification of the component to be actually used in the electronic product.

In addition, a conventional printed circuit board design is a task of transferring a designed circuit to a board through a printed circuit board artwork using an electronic CAD program (CAD program).

At this time, since the size of the electronic product is limited, the printed circuit board is designed in several layers connected via a via hole and a thru-hole.

Thus, the printed circuit board fabrication is a process of actually manufacturing the substrate designed through the artwork.

In this case, the SMD process is a process of placing the components on a printed circuit board and soldering them, and the SMD (Surface Mounting Devices Part) parts are seated and reflow soldered, and the lead parts are seated and wave soldered .

However, since wave soldering is performed after reflow soldering, the flux applied to the surface of the lands of the insert parts during reflow soldering is volatilized, and solder failure is liable to occur.

Moreover, since wave soldering is almost a final process, it has a large influence on the performance and reliability evaluation of electronic products. Therefore, it is necessary to optimize the process.

In other words, a connector for connection is inevitably required in order to electrically connect main functional parts inside and outside the circuit board in the reality that the degree of integration of the circuit board is increasing in accordance with the trend of high function and miniaturization of various electronic products.

For example, a Zero Insertion Force (ZIF) connector applied to a wafer inspection apparatus, a UMPC, a netbook, or a product equipped with a flexible circuit board can be connected in a small space, There is a weakness with side difficulty.

As a result, the industry has been trying to compensate for the weaknesses of ZIF connectors.

On the other hand, as a prior art patent, Korean Patent Registration No. 1007817 discloses a connector device for electrically connecting electric and electronic components according to a "connector device", comprising: a printed circuit board having a plurality of ground electrodes; An electrical component in which a plurality of signal terminals are formed; An interposer formed between the printed circuit board and the electrical component and electrically connecting the ground electrode and the signal terminal; A pressing member for pressing the electric component to come into contact with the interposer; And a driving member for driving the pressing member.

However, this prior art technique minimizes the electrical signal path, thereby improving the electrical characteristics, making it possible to cope with the narrow pitch, and at the same time, enhancing the convenience of connection and expecting the corresponding effect at low cost. However, There is a disadvantage that the reliability of operation and the durability are limited depending on the product.

As another example of the prior patent, Korean Patent Registration No. 1089789 discloses a connector having a housing and a connecting pin according to a " connector ", wherein the connecting pin is a combination of a signal terminal for transmitting a signal and a ground terminal for forming a contact Wherein the connection pin is formed as a single member, and a bending portion bent to surround the connection pin of the mating connector is formed, the lower side of the connection pin is first bent to have elasticity, There is proposed a configuration in which the end is bent to be secondarily bent so as to have a bending surface.

However, the above-mentioned another prior art is advantageous in that the housing and the connecting pin are easily formed, which is advantageous for automation, and the grounding is stabilized, thereby increasing the signal transmission rate and increasing the close fixing force to the substrate. It is difficult to maintain a high fixing force because of the method of pressing and applying friction force. Thus, there is a problem that the applicability to various products is limited.

Patent Document 1 - Registration No. 10-1007817 (Registered on May 1, 2011) Patent Document 2 - Registration No. 10-1089789 (Registered on November 29, 2011)

SUMMARY OF THE INVENTION The present invention is directed to a connector that is populated (soldered or fused) onto a printed circuit board, the connector being in the form of a highly integrated pin structure and providing stable soldering The first and second connection pins corresponding to the Male or Female structure can be stably assembled to the circuit board by means of the stepped surface and the extension of the first connection pin, (Electrical contact) of the connection structure and the contactor of the time elastic structure to improve the electrical connection property (electrical contact property), it is possible to improve the solderability of the solder through the SMD (Surface Mount Device) The reliability of the electrical energization (connection) is greatly improved, and the quality of the product can be guaranteed to be excellent And it is an object of the present invention to provide a connector for a printed circuit board.

As a result, the present invention provides a high-quality connecting apparatus which is mounted as a PCB substrate on a target apparatus to provide high performance in use, while assuring reliability and durability, and prevents equipment shortage due to vibration and the like, So that it is satisfied.

In order to achieve the above object, the present invention provides a semiconductor device comprising: a first connection pin (100) having an electrical connecting contactor (110) formed on an upper side thereof and a grounding needle (120) connected to a circuit board on a lower side; A connection port 210 is formed at a lower portion to be elastically connected to the contactor 110 in correspondence with the contactor 110 and a connecting needle 220 is protruded and extended at an upper portion opposite to the connection port 210 so as to be electrically connected to the electronic component A second connecting pin (200); In the connector constructed as described above,

The grounding needle 120 is provided with an extension 130 having a step 131 to provide a stable solder joint to the circuit board,

The contactor 110 has a neck or truncated conical shape having a concave fitting groove 111 on both outer circumferential surfaces at a predetermined distance downward from an upper end of the connecting hole 210 of the second connecting pin 200, And a circular connection terminal 212 is formed at an end of the connection port 210. The connection terminal 210 is formed in a shape of a jaw so as to correspond to the fitting groove 111. [

Accordingly, the connection port 210 of the second connection pin 200 is configured to have an elliptical shape that is formed in a '(' shape) and a downwardly opened (' .

The first connection pin 100 and the second connection pin 200 are assembled through the lower frame 300 and the through holes 330 and 430 of the upper frame 400, The first connection pin 100 and the fixing protrusions 150 and 250 of the second connection pin 200 correspond to each other and are firmly fixed to each other without interfering with each other Assembled.

The stepped surface 131 of the first connection pin 100 protrudes outwardly from the bottom of the bottom surface 320 of the lower frame 300.

The first connection pin 100 and the second connection pin 200 are assembled in the longitudinal direction of the lower frame 300 and the upper frame 400, respectively.

As described above, the present invention relates to a connector that is mounted (soldered or fused) onto a printed circuit board, wherein the connector has a plurality of highly integrated pin structures (for example, 60 to 120 pins) The first and second connection pins corresponding to the Male or Female structure can be stably fixed to the circuit board by the stepped surface and the extension of the first connection pin, (Electrical contact) of the structure to improve the electrical connection property (electrical contact property), which ultimately leads to a high-quality connection with reliability and durability, (Short circuit) due to vibration or the like is prevented, and the user is satisfied with usability.

1 is an exploded perspective view of a connector according to the present invention,
Fig. 2 is a perspective view of the assembled state of Fig. 1,
3 is a longitudinal cross-sectional view of one side of a connector according to the present invention,
4A is an exploded perspective view of a first connection pin according to an embodiment of the present invention and a second connection pin formed in a jugular shape,
FIG. 4B is an exemplary view showing a state in which the connection pin and the second connection pin of FIG. 4A are resiliently connected;
Fig. 5 is an exemplary view showing a connection port of a second connection pin formed in an elliptical shape according to another embodiment of Fig. 4;

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

First, as shown in FIGS. 1 to 5, the present invention is largely composed of a first connection pin 100 and a second connection pin 200.

The first connection pin 100 is formed with an electrical connection contactor 110 on one side thereof and a grounding needle 120 connected to a circuit board on a lower side thereof. An extension 130 having a step 131 is provided to provide a stable solder joint to the circuit board.

The second connection pin 200 corresponds to the contactor 110 and is connected to both ends of the connector 210. The connection terminal 210 is formed at the lower portion of the second connection pin 200 so that the second connection pin 200 is elastically connected to the connector 110 while being inserted / And the connecting needle 220 is formed so as to protrude so as to be energized.

At this time, the contactor 110 of the first connection pin 100 is configured to have a neck shape having a fitting groove 111 concaved on both outer circumferential surfaces at a certain distance downward from the upper end. That is, the structure of the fitting groove 111 of the neck structure may be expressed in a mortar shape.

The connection port 210 of the second connection pin 200 is formed in the shape of a catch which serves as a detection finger with the thumb finger as an embodiment corresponding to the fitting recess 111. The end of the connection port 210 A circular connection terminal 212 is formed so as to be guided while being slid into the insertion groove 111 for insertion in order to connect the second connection pin 200 to the first connection pin 100.

The operation of coupling the second connection pin 200 to the first connection pin 100 will now be described. The opening 213 of the connection opening 210, And the circular connecting end 212 of the connection port 210 is slid along the outer surface of the contactor 110 and spreads outwardly, And the connection terminals 212 are seated in the fitting groove 111 and electrically connected to each other.

At this time, the connection port 210 is formed to be elongated or contracted in the left and right width direction by elasticity, and the elastic point is formed to extend or contract on the basis of the connection portion 215 extending from the body plate 214 side.

The opening 213 of the connection port 210 with the connection terminal 212 interposed therebetween is formed to have a width smaller than the width of the both side ends of the neck structure contactor 110, So that the elastic force is applied in a direction in which the connection ports 210 extend in a direction opposite to each other.

At this time, it is preferable that the fitting groove 111 is formed in a circular shape so as to correspond to the connecting end 212.

At this time, the outside end of the contactor 110 having a neck structure is formed into a round shape without angled corners so that the connection end 212 of the connection port 210 can be smoothly mounted.

The first connection pin 100 and the second connection pin 200 are assembled to the lower frame 300 and the upper frame 400 and are connected to a pin assembly (for example, a 60 to 120 PIN structure) .

At this time, on the bottom surface of the lower frame 300, a fixing shaft 310 is protruded and inserted into a groove formed at a predetermined position of the circuit board to hold a position where the connector of the present invention is to be installed, and the end of the first connecting pin 100 for providing a reliable solder joints teokmyeon 131 protrudes by (h) a predetermined height as a bottom surface 320, a lower amount outside of the lower frame, a length (ℓ of As shown in Fig.

The lower frame 300 and the upper frame 400 may have through holes 330 and 430 and upper and lower frames 300 and 300 so that the first connection pin 100 and the second connection pin 200 are firmly fixed and can be assembled without interfering with each other. And coupling grooves 340 and 440 are formed.

The first connection pin 100 and the second connection pin 200 are connected to the yoke 110 and the connection port 330 via the through holes 330 and 430 of the lower frame 300 and the upper frame 400, 210 are smoothly contacted with each other, and the fixing protrusions 150, 250 are inserted into the coupling grooves 340, 440 so as to firmly assemble them.

In other words, the through holes 330 and 430 of the lower frame 300 and the upper frame 400 and the coupling grooves 340 and 440 are formed in the number of the first connection pin 100 and the second connection pin 200 (Pitch interval) set along the longitudinal direction while corresponding to a predetermined pitch (e.g., 60 to 120 Pins).

Here, when a plurality of connection pins are provided so as to have a fine pitch as in the present invention, it is very important to prevent short-circuiting (short-circuiting) with adjacent connection pins. For this purpose, The fixing protrusion 150 is inserted into the coupling groove 340 formed on the outer side of the lower portion of the lower frame 300 and the upper portion of the contactor 110 of the first connection pin 100 is provided with a spacer 350 And is held at a predetermined distance from the adjacent first connection pin 100. The first connection pin 100 is connected to the first connection pin 100, The spacer 350 has a function of guiding the connection port 210 of the second connection pin 200 inserted into the upper frame 400 for connection with the first connection pin 100 You may.

5, the connection port 210 'of the second connection pin 200' is an optional embodiment. The connection port 210 'of the second connection pin 200' has a shape of '(' shape, The second connecting pin 200 'may be configured to have an elastic durability from the connecting portion 215' to the connecting end 212 'of the second connecting pin 200' have.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... first connection pin 110 ... contactor
120 ... grounding needle 130 ... extension
200, 200 '... second connection pin 210 ... connection port
220 ... connecting needle 300 ... lower frame
400 ... upper frame

Claims (5)

A first connecting pin (100) having an electrical connecting contactor (110) formed on an upper side thereof and a grounding needle (120) electrically connected to a circuit board on a lower side thereof; A connection port 210 is formed at a lower portion to be elastically connected to the contactor 110 in correspondence with the contactor 110 and a connecting needle 220 is protruded and extended at an upper portion opposite to the connection port 210 so as to be electrically connected to the electronic component A second connecting pin (200); Wherein the grounding needle 120 is provided with an extension 130 having a step 131 to provide a stable solder joint to the circuit board and the contactor 110 has a constant The connection port 210 of the second connection pin 200 is formed into a neck shape or a truncated conical shape having a concave fitting groove 111 on both outer circumferential surfaces with a distance therebetween, And a circular connection terminal 212 is formed at an end of the connection port 210. The first connection pin 100 and the second connection pin 200 are connected to the respective lower frames 300, The upper frame 400 and the upper frame 400 are coupled to each other through the through holes 330 and 430 of the upper frame 400. The lower frame 300 and the upper frame 400 are formed with coupling grooves 340 and 440, The fixing projections 150 and 250 of the two connecting pins 200 correspond to each other, A connector formed to be assembled without interference,
The stepped surface 131 is formed to protrude outward from the lower side of the bottom surface 320 of the lower frame by a predetermined height h and a spacer 350 is formed in the through hole 330 of the lower frame 300. [ The upper portion of the contactor 110 of the first connection pin 100 is inserted into the lower groove of the spacer 350 so as to be held in contact with the lower portion of the spacer 350, And is configured to guide the connection port 210 of the second connection pin 200 inserted for connection with the first connection pin 100,

The connection port 210 has a finger thumb and a pawl shape serving as a fingerprint detection "

The connection terminal 212 is formed in a circular shape and slidably inserted into the insertion groove 111 for connection with the first connection pin 100 so as to be guided and to be seated in the correct position, The connection terminal 210 is formed such that the connection port 210 generated by the connection portion 215 coupled with the body 214 of the elastic point is expanded and contracted in the left and right direction by elasticity, The opening 213 of the connector 210 is formed to be narrower than the width of the vertical straight ends on both sides of the neck structure contactor 110 so that the connection port 210 branched from the body plate 214 is inserted into the fitting groove 111, So as to ensure stable energization contact with the printed circuit board.
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