KR20150019996A

KR20150019996A - Connector

Info

Publication number: KR20150019996A
Application number: KR20130161092A
Authority: KR
Inventors: 김희조; 이세현
Original assignee: 삼성전자주식회사
Priority date: 2013-08-14
Filing date: 2013-12-23
Publication date: 2015-02-25

Abstract

The present invention relates to a connector. According to an embodiment of the present invention, the connector includes: a connector body which is installed on a printed circuit board; multiple pins which are installed on the connector body and are arranged on at least two columns up and down; and a connector cover on which the connector body is fixed on the printed circuit board and has a pin exposure hole to expose the soldering units of pins of at least one column among multiple pins.

Description

Connector {CONNECTOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounted on a substrate, and more particularly to a connector used in a surface mounted device.

Generally, the connector used in the printed circuit board is divided into a surface mounted type and a through hole type. In the surface mount type, a plurality of pins provided on a connector are soldered onto a printed circuit board. In the insert-mounted type, a plurality of pins provided on the connector are passed through the printed circuit board. The surface mount type has advantages in cost and time compared to the insert type. Accordingly, various components (e.g., connectors) mounted on a printed circuit board are mainly of the surface mount type.

In the conventional connector used in the surface mount type, the pins to be soldered to the printed circuit board are arranged side by side along the width direction of the connector. Accordingly, if the number of the pins increases, a problem that the size of the connector increases in the width direction may occur. Conventionally, in a connector having a plurality of pins, such a problem is solved by arranging a plurality of pins in a plurality of columns in the vertical direction.

However, in such a conventional connector, when a plug connected to a connector is repeatedly inserted and detached, a load is transmitted to the pins, and cracks are generated in the pins.

In addition, since only the pins of the row arranged in the rear of the connector are exposed in the rows of the pins arranged in a plurality of rows, there is a problem that it is difficult to confirm the soldering failure or the like which may occur later in the case of the pins not disposed at the rear of the connector. In addition, unexposed pins can be difficult to remove by soldering, which may cause problems in connector replacement work in the future.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a connector that can prevent pin cracks in a connector and can check pin defects and replace connectors easily.

According to an aspect of the present invention, there is provided a connector according to an embodiment of the present invention, including: a connector body mounted on a printed circuit board; a plurality of pins provided on the connector body, And a connector cover having a pin exposure hole fixed to the printed circuit board and exposing soldering portions of at least one of the plurality of pins.

The plurality of pins may include lower pins exposed through the pin exposure holes and upper pins disposed on the upper side of the lower pins.

The soldering portion of the upper fins may be exposed to the rear of the connector cover.

The plurality of pins may include upper pins exposed through the pin exposure holes and lower pins disposed below the upper pins.

The soldering portions of the lower pins may be exposed to the rear of the connector cover.

The connector body may be formed with a through hole disposed below the pin exposure hole and through the connector body so that the soldering portions of at least one of the plurality of pins are exposed.

The connector cover may include a plurality of cover soldering parts to be soldered to the printed circuit board.

Wherein the plurality of cover soldering portions include a pair of rear soldering portions provided on both sides of the rear end of the connector cover and a pair of rear soldering portions provided on both side portions of the connector cover spaced a predetermined distance forward of the connector cover from the pair of rear end soldering portions And a pair of side edge soldering portions.

The pair of side-end soldering parts protrude along the width direction of the connector cover and may protrude more than the pair of rear-end soldering parts in the width direction of the connector cover.

The pins having different heat can be alternately arranged along the width direction of the connector body.

The connector may be a Surface Mounted Device type.

According to various embodiments of the present invention as described above, it is possible to provide a connector that prevents pin cracks in the connector, facilitates pin defect check, and facilitates connector replacement.

1 is a perspective view of a connector according to an embodiment of the present invention.
Fig. 2 is a perspective view of the connector of Fig. 1, with the connector cover removed. Fig.
3 is a cross-sectional view of the connector taken along the line III-III in Fig.
4 is a cross-sectional view of a connector according to another embodiment of the present invention.
5 is a plan view of the connector of Fig.
6 is a bottom view of the connector of Fig. 1;

The present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the embodiments described herein are illustrated by way of example for purposes of clarity of understanding and that the present invention may be embodied with various modifications and alterations. Also, for ease of understanding of the invention, the appended drawings are not drawn to scale, but the dimensions of some of the components may be exaggerated.

A connector is an electronic component that electrically connects a power supply, a device, a device and an appliance, or between unit units inside the appliance. The connector can be divided into various types according to the shape of the back and the connection method of connecting the cable or the printed circuit board.

In the present embodiment, the description will be limited to the connector mounted on the printed circuit board. Hereinafter, a connector according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view of a connector according to an embodiment of the present invention, FIG. 2 is a perspective view of the connector of FIG. 1 excluding a connector cover, FIG. 3 is a sectional view of a connector along a line III- Fig. 5 is a plan view of the connector of Fig. 1, and Fig. 6 is a bottom view of the connector of Fig. 1. Fig.

1 to 3, 5 and 6, the connector 10 is mounted on a printed circuit board (not shown) and is provided in a surface mount type. This connector 10 includes a connector body 100, a connector cover 200, and a plurality of pins 300, 400.

The connector body 100 is mounted on a printed circuit board. A plug (not shown) connected to an external device or the like is removably mounted on the connector body 100. In this connector body 100, a plug connecting portion 110, a rear end groove 120, a pin supporting portion 130, a through hole 140, and an insertion protrusion 150 are formed.

The plug connection portion 110 is formed to protrude from the front end portion 102 of the connector body 100 in the forward direction (-X-axis direction) of the connector body 100. The plug connection portion 110 may be inserted and connected to a plug connected to the external device or the like as described above. Of course, it is also possible to insert the plug into the plug connection portion.

The rear end groove 120 is formed in the rear end portion 104 of the connector body 100. The rear end groove 120 is formed along the width direction (Y-axis direction) of the connector body 100. A plurality of upper fins 400 to be described later are exposed rearward (+ X-axis direction) of the connector body 100 by a rear end groove 120. That is, the rear end groove 120 exposes a portion of the plurality of upper fins 400 to the outside of the connector 100 so that the plurality of upper fins 400 can be discriminated from the outside of the connector 100.

The pin supporting portion 130 is provided between the rear end groove 120 and the through hole 140. The pin supporting portion 130 is formed with a plurality of pin passing holes 132 through which the upper pins 400 are passed. The pin support portion 130 fixes the upper fin 400 to prevent the upper fin 400 from flowing.

The through hole 140 is formed to penetrate the connector body 100 in the vertical direction (Z-axis direction) so that the lower pin soldering portion 330 of the lower pins 300 is exposed to the outside of the connector 10. [

The through hole 140 has a rectangular bar-shaped cross section. The width L of the through hole 140 has such a width that the lower pin soldering portions 330 of the lower pins 300 as well as a part of the upper pins 300 can be exposed together. That is, the through-hole 140 according to the present embodiment has a width L that allows a part of the upper fins 300 disposed outside the lower pin soldering portions 330 of the outermost lower pins 300 to be exposed together . The width of the through hole is sufficient to expose the lower pin soldering portions of the lower fins. In addition, it is preferable that the thickness of the through hole 140 is designed to be large enough to expose the lower pin soldering portions 330 of the lower fins 300.

On the other hand, the connector body may have a structure in which the pin support portion and the through hole are not provided. The connector body may be covered with the connector cover 200 and may have other structures as long as the lower pin soldering portions of the lower pins are exposed through the pin exposure hole 250 of the connector cover 200 Do. For example, the connector body may have a U-shaped groove capable of accommodating a plurality of pins 300 and 400 when viewed from the rear (+ X-axis direction) Only a plurality of pins 300 and 400 may be exposed.

The insertion protrusion 150 is for guiding the mounting of the connector body 100 when the connector body 100 is mounted on the printed circuit board. The insertion protrusions 150 protrude from the bottom surface 108 of the connector body 100. The insertion protrusions 150 pass through the printed circuit board and may include one or more. In the present embodiment, a pair of insertion protrusions 150 spaced from each other by a predetermined distance is provided.

The connector cover 200 covers the connector body 100 and fixes the connector body 100 to the printed circuit board. The connector cover 200 is formed with a pair of elastic portions 210 and 220, an exposure groove 230, a pin exposure hole 250, and a plurality of cover soldering portions 270 and 280.

The pair of elastic portions 210 and 220 guide the connection of the plug connection portion 110 and the plug. The pair of elastic parts 210 and 220 stably fix the plug connected to the plug connection part 110 to the connector body 100 when the plug is installed and guide the plug removal from the plug connection part 110 when the plug is detached.

The pair of elastic parts 210 and 220 include a first elastic part 210 and a second elastic part 220. [

The first elastic portion 210 includes a first elastic contact protrusion 212 and a first guide groove 216.

The first elastic contact protrusion 212 is resiliently movable in a vertical direction (Z-axis direction) of the connector cover 200, and when the plug is mounted, the first elastic contact protrusion 212 is engaged with the plug to fix the plug to the connector body 100.

The first guide groove 216 surrounds the first elastic contact protrusion 212 on the upper surface 202 of the connector cover 200 so that the first elastic contact protrusion 212 can move in the vertical direction .

The second elastic portion 220 includes a second elastic contact protrusion 222 and a second guide groove 226.

The second elastic contact protrusions 222 are spaced apart from the first elastic contact protrusions 212 by a predetermined distance. Since the second elastic contact protrusions 222 have the same shape and function as the first elastic contact protrusions 212, detailed description thereof will be omitted.

The second guide groove 226 is spaced apart from the first guide groove 226 by a predetermined distance. Since the second guide groove 226 has the same shape and function as the first guide groove 226, detailed description is omitted.

The exposed groove 230 is formed in the rear end portion 204 of the connector cover 200. The exposed groove 230 is disposed above the rear end groove 120 in a shape corresponding to the rear end groove 120 of the connector body 100 so that the plurality of upper pins 400 may be exposed to the outside of the connector 10. [

The pin exposure hole 250 is formed on the upper surface 202 of the connector cover 200 so as to be spaced apart from the exposure groove 230 by a predetermined distance in the forward direction (-X-axis direction). The pin exposure hole 250 is formed along the width direction (Y axis direction) of the connector cover 200 and the lower pin soldering portion 330 of the lower pins 300 described later is exposed to the outside of the connector 10. [ The through hole 140 is formed.

The width a of the pin exposure hole 250 in the X axis direction is formed to have a width enough to expose all of the lower pin soldering portions 330 of the lower pins 300. [ That is, the width a in the X-axis direction of the pin exposure hole 250 should be longer than the length of each lower pin soldering portion 330 in the X-axis direction.

The width b of the pin exposure hole 250 in the Y-axis direction is also formed to have a width enough to expose all of the lower pin soldering portions 330 of the lower fins 300. That is, the width b in the Y-axis direction of the pin exposure hole 250 should be greater than the distance between the lower pin soldering portions 330 of the lower pin 300 disposed at the outermost periphery.

The pin exposure hole 250 may be formed to be equal to or larger than the through hole 140. However, if the lower pin soldering portion 330 of the lower pins 300 is exposed to the outside of the connector 10, the size of the pin exposure hole 250 may be smaller than the size of the through hole 140.

In this embodiment, through the pin exposure hole 250 formed in the connector cover 200, not only the upper side pin soldering portions 430 of the upper fins 400 exposed to the outside of the connector 10 but also the lower side of the lower fins 300 The pin soldering portions 330 are also easily visible to the user.

Therefore, the user can easily confirm the soldering state of the plurality of pins 300, 400, and can easily check the connection failure of the connector 10 or the like.

On the other hand, when it is desired to replace the connector due to connection failure of the connector 10 or the like, it is necessary to heat the soldering portion of the connector 10 to release soldering. At this time, the soldering release of the lower pin soldering portions 330 of the lower fins 300 may be a problem.

Since the lower pin soldering portions 330 of the lower pins 300 disposed under the pin exposure hole 250 through the pin exposure hole 250 of the connector cover 200 are opened to the outside, Heat can be easily transferred to the lower pin soldering portions 330 of the lower fins 300 even when heat is applied on the upper side of the exposure hole 250.

Therefore, in this embodiment, the soldering of the lower pin soldering portions 330 can be easily released without increasing the heat temperature more than necessary. Accordingly, in this embodiment, breakage of the printed circuit board, which may be caused by high temperature at the time of releasing the solder, can be prevented as well.

The plurality of cover soldering portions 270 and 280 are soldered to the printed circuit board so that the connector body 100 can be stably fixed to the printed circuit board. The soldering portions 270 and 280 include a pair of rear-end soldering portions 270 and a pair of side- (280).

A pair of rear-end soldering portions 270 are formed on both sides of the rear end portion 204 of the connector cover 200, respectively. At the bottom of each rear-end soldering portion 272, a rear-end soldering protrusion 272 is formed to be soldered to the printed circuit board.

A pair of rear-end soldering portions 270 are soldered to the printed circuit board on both sides of the rear end portion 204 of the connector cover 200. Accordingly, the connector cover 200 can be fixed to the printed circuit board while covering the rear end 104 of the connector body 100.

A pair of side edge soldering portions 280 are provided on both side portions of the connector cover 200, respectively. Each of the side-end soldering portions 280 is formed to be spaced apart from the rear-end soldering portions 270 by a predetermined distance in the forward direction (-X-axis direction) of the connector cover 200. A side edge soldering projection 282 is formed on the bottom surface of each side edge soldering portion 280 so as to be soldered to the printed circuit board.

The pair of side edge soldering parts 280 protrude further outward than a pair of rear edge soldering parts 270 in the width direction (Y axis direction) of the connector cover 200. Accordingly, the connector cover 200 has four rows of soldering points (as viewed in the x-axis direction) of the connector cover 200, that is, the connector cover 200 according to the present embodiment, And can be stably fixed to the printed circuit board.

The connector cover 200 according to the present embodiment is configured such that when the plug is attached or detached through the pair of rear end soldering portions 270 and the pair of side soldering portions 280, Axial direction) in the direction of the axis of rotation.

Therefore, since the connector 10 according to the present embodiment minimizes the transfer of the load due to the flow to the plurality of pins 300 and 400 soldered to the printed circuit board, the cracks of the pins 300 and 400 are minimized Can be effectively prevented.

A plurality of pins 300 and 400 are provided in the connector body 100 and are electrically connected to the plug connector 110. The plurality of pins 300 and 400 are soldered to a printed circuit board to electrically connect the printed circuit board and an external device connected to the plug.

The plurality of pins 300 and 400 are arranged in at least two different rows so as not to increase in size in the width direction (Y-axis direction) of the connector 10 due to the pins. The present embodiment is limited to being provided with two rows arranged vertically above each other.

The plurality of pins 300, 400 include a plurality of lower pins 300 and a plurality of upper pins 400. The plurality of lower pins 300 and the plurality of upper pins 400 are alternately arranged along the width direction (Y axis direction) of the connector body 100. That is, one lower pin 300 is disposed between the two upper pins 400.

The plurality of pins 300 and 400 in this embodiment are provided in total of 19 pins and are composed of nine lower pins 300 and ten upper pins 400. The number of pins may be variously changed depending on the design.

The plurality of lower pins 300 are electrically connected to the plug connection 110 and soldered to the printed circuit board. Each of the lower pins 300 is disposed at a predetermined distance from the width direction (Y-axis direction) of the connector body 100. Each of the lower pins 300 includes a lower horizontal portion 310, a lower vertical portion 320, and a lower pin soldering portion 330.

The lower horizontal portion 310 is connected to the plug connection portion 110 and extends rearward (+ X-axis direction) of the connector body 100 in the connector body 100.

The lower vertical portion 320 extends downward (-Z-axis direction) of the connector body 100 from the lower horizontal portion 310. The lower vertical portion 320 is supported on the inner wall of the connector body 100 in the through hole 140 to be described later.

The lower pin soldering portion 330 is bent in the horizontal direction (X-axis direction) from the lower vertical portion 320 toward the back (+ X-axis direction) of the connector body 100. The lower pin soldering portion 330 is soldered to the printed circuit board and exposed to the outside of the connector 10 through the through hole 140 of the connector body 100 and the pin exposure hole 250 of the connector cover 200 .

The plurality of upper fins 400 are electrically connected to the plug connection 110, such as the lower fins 300, and soldered to the printed circuit board. Each of the upper fins 400 is disposed at a predetermined distance from the width direction (Y-axis direction) of the connector body 100. Each of the upper pins 400 includes an upper horizontal portion 410, an upper vertical portion 420, and an upper pin soldering portion 430.

The upper horizontal portion 410 is connected to the plug connection portion 110 and extends through the connector body 100 in the rear direction (+ X-axis direction) of the connector body 100 in the connector body 100. At this time, a part of the upper horizontal part 410 passes through the pin passing hole 132 of the pin supporting part 130.

The upper vertical portion 420 extends downward (-Z-axis direction) of the connector 10 from the upper horizontal portion 410. The upper vertical portion 420 is supported on the inner wall 122 of the rear end groove 120 and is connected to the connector 10 through the rear end groove 120 of the connector body 100 and the exposed groove 230 of the connector cover 200. [ (In the + X-axis direction).

The upper pin soldering portion 430 is bent in the horizontal direction (X-axis direction) from the upper vertical portion 420 toward the back (+ X-axis direction) of the connector body 100. The upper pin soldering portion 430 is soldered to the printed circuit board and exposed to the outside of the connector 10 through the rear groove 120 of the connector body 100 and the exposed groove 230 of the connector cover 200.

The plurality of upper fins 400 according to the present embodiment are connected to the upper vertical part 420 through the upper horizontal part 410 passing through the pin through hole 132 and the upper vertical part 420 supported by the inner wall 122 of the rear end groove 120 And is stably fixed to the connector body 100.

Accordingly, even though the plurality of upper fins 400 extend further to the rear (+ X axis direction) of the connector body 100 than the plurality of lower fins 300, a stable fixing force can be secured.

4, the lower pins 350 are disposed on the rear end groove 120 of the connector body 100A and the exposed grooves 120 of the connector cover 200 230 and the upper fins 450 may be exposed to the through hole 140 of the connector body 100 and the pin exposure hole 250 of the connector cover 200. That is, the lower pin soldering portion 460 of the lower pins 350 may be disposed further rearward (+ X axis direction) than the upper pin soldering portion 460 of the upper pins 450.

In this embodiment, since the lower fins 350 are exposed to the rear end groove 120, the pin passing hole 133 of the pin supporting portion 130 is formed on the lower side of the connector body 100A than in the previous embodiment. The plurality of lower pins 350 are stably fixed to the connector body through the pin through holes 133 of the pin support portion 130.

Accordingly, the plurality of lower fins 350 can secure a stable fixing force even when the plurality of upper fins 450 are extended further in the backward direction (+ X-axis direction) of the connector body 100A than the plurality of upper fins 450.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. 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 present invention.

10: connector 100: connector body
200: connector cover 250: pin exposure hole
300: lower pin 400: upper pin

Claims

A connector body mounted on a printed circuit board;
A plurality of pins provided on the connector body and arranged at least two rows above and below each other; And
And a connector cover having a pin exposing hole for fixing the connector body to the printed circuit board and exposing soldering portions of the pins of at least one of the plurality of pins.

The method according to claim 1,
The plurality of pins
Lower pins through which the soldering portions are exposed through the pin exposure holes; And
And upper pins disposed on the upper side of the lower pins.

3. The method of claim 2,
And the soldering portions of the upper fins are exposed to the rear of the connector cover.

The method according to claim 1,
The plurality of pins
Upper pins on which soldering portions are exposed through the pin exposure holes; And
And lower pins disposed below the upper fins.

5. The method of claim 4,
And the soldering portions of the lower pins are exposed behind the connector cover.

The method according to claim 1,
Wherein the connector body is formed with a through hole disposed below the pin exposure hole and through the connector body so that the soldering portions of at least one of the plurality of pins are exposed.

The method according to claim 1,
Wherein the connector cover includes a plurality of cover soldering portions that are soldered to the printed circuit board.

8. The method of claim 7,
Wherein the plurality of cover soldering portions comprise:
A pair of rear-end soldering parts provided on both sides of the rear end of the connector cover; And
And a pair of side-edge soldering parts spaced apart from the pair of rear-end soldering parts by a predetermined distance forward of the connector cover and provided on both side parts of the connector cover.

9. The method of claim 8,
Wherein the pair of side-end soldering portions protrude along the width direction of the connector cover and protrude more than the pair of rear-end soldering portions in the width direction of the connector cover.

The method according to claim 1,
And pins having different heat are arranged alternately along the width direction of the connector body.

The connector according to claim 1, wherein the connector is a Surface Mounted Device.