WO2007061233A1

WO2007061233A1 - Connector

Info

Publication number: WO2007061233A1
Application number: PCT/KR2006/004946
Authority: WO
Inventors: Yoon-Sik Choi
Original assignee: Yoon-Sik Choi
Priority date: 2005-11-24
Filing date: 2006-11-23
Publication date: 2007-05-31
Also published as: TW200740042A

Abstract

Disclosed is a connector which is used in electrical/electronic appliances and has mechanism of physical connection between a female connector holder including a plurality of symmetrical female terminals and a male connector holder including a plurality of symmetrical male terminals, and more particularly, to a connector which not only maintains stable connection based on an insert-type structure that an insertion part of a male terminal formed in a male connector holder is inserted in an accommodating part of a female terminal formed in a female connector holder, but also has a simple, small, lightweight and thin structure because holders supporting and holding the female and male terminals are formed as a single body on an upper end of one side. Further, the present invention relates to a connector in which a holder fixing groove is formed in a female connector holder and a holder fixing part is formed in a corner of a male connector holder, so that a binding force of the connector increases doubly in association with a binding force between female and male terminals, thereby preventing the connector from a short-circuit even though an external shock is given to the connector.

Description

CONNECTOR

Technical Field

[1] The present invention relates to a connector which is used in electrical and electronic appliances and operated by a physical connection between a female connector holder including a plurality of symmetrical female terminals and a male connector holder including a plurality of symmetrical male terminals, and more particularly, to a low-height super-precision connector which not only maintains a stable connection based on an insert-type structure that an insertion part of a male terminal formed in a male connector holder is inserted into an accommodating part of a female terminal formed in a female connector holder, but also has a small, lightweight and thin structure because holders supporting and holding the female and male terminals are formed in a single body on an upper end of one side.

[2] Further, the present invention relates to a connector in which a holder fixing groove is formed in a female connector holder and a holder fixing part is formed in a corner of a male connector holder, so that a binding force of the connector increases doubly in association with a binding force between female and male terminals, thereby preventing the connector from being short-circuited even though an external shock is applied to the connector. Background Art

[3] In the prior art, referring to Korean Patent No, 10-0463641, and Korean Utility

Model Nos. 20-0225814, 20-0334581, 20-0342995 and 20-0363233, a female connector and a male connector are coupled as a one-to-one straight type and they are stratified, so that the female and male connectors may be short-circuited due to an external shock.

[4] Accordingly, a conventional connector does not meet demands for a simple, small, lightweight and thin structure following the trend of the times. Further, there is stratification in a place where female and male connector holders of the connector are coupled to each other, and thus problems arise in that a structural limit due to a height difference is not overcome, conductive performance becomes poor because solder may reach an electrical contact part during soldering work, and in the case of the male connector, a soldered part becomes weak because heat generated while soldering a male terminal is concentrated.

[5] Also, in the case that the conventional connector has a "U" -shaped female terminal and an "L"-shaped male terminal, if an external shock or a vibration is repeated, or if the male connector is repeatedly connected to and disconnected from the female connector holder of the connector, the female and male terminals are easily deformed, thereby deteriorating electrical contact therebetween. Additionally, while the "U"-shaped female terminal is receiving the "L"-shaped male terminal, tension should be applied therebetween. As a result, as a restoring force of the female terminal becomes weak, the female terminal contacts the male terminal at only opposite two end points, thereby deteriorating the conductive performance and making noise. Disclosure of Invention Technical Problem

[6] An object of the present invention is to provide a connector which not only maintains stable connection based on an insert-type structure that an insertion part of a male terminal formed in a male connector holder is inserted in an accommodating part of a female terminal formed in a female connector holder, but also has a simple, small, lightweight and thin structure with the minimum height of the connector.

[7] Another object of the present invention is to provide a connector in which a solder guiding groove is formed in a bottom of an end of a female terminal provided in a female connector, so that the female terminal is more firmly attached to a circuit board.

[8] Still another object of the present invention is to provide a connector in which a solder barrier is formed in a surface and a bending part of a female terminal provided in a female connector holder, so that unstable electrical contact is prevented during soldering work.

[9] Yet another object of the present invention is to provide a connector in which a heat radiation hole is formed on a surface of a female connector holder, so that heat generated from a terminal is quickly radiated through the heat radiation hole. Technical Solution

[10] An aspect of the invention provides a connector used in electrical and electronic appliances and having mechanism that a female connector holder formed with a plurality of symmetrical female terminals and a male connector holder formed with a plurality of symmetrical male terminals are physically coupled each other, the connector includes: a holder fixing part which is formed in a corner of the male connector holder and has a column shape to set and fix a position; and a holder fixing groove which is formed in opposite sides of the female connector holder in correspondence to the holder fixing part to doubly support and assemble the connector, wherein the female and male terminals of the female and male connector holder have a "U"-shaped accommodating part and a "U"-shaped insertion part, respectively, so that the insertion part of the male terminal is detachably inserted in the accommodating part of the female terminal by tension; and the female and male connector holders include female and male terminal fixing parts that are formed to be bent in one upper parts of the accommodating part and insertion part of the female and male terminals and are embedded while molding the female and male connector holders to minimize height of when the female terminal and the male terminal are coupled.

[11] In an exemplary embodiment of the present invention, the male terminal includes a bending part formed by bending in a middle upper part of the male terminal fixing part; the male terminal includes an operational space for tension in an inner surface of one side or opposite sides of "U"-shaped insertion part to be embedded the female terminal includes a fixing pin which is placed on a bottom of the female terminal fixing part and tapered with fixing chocks at opposite sides thereof to be firmly fixed to the female connector holder; the female terminal includes a solder blocking groove at one side of a bending part of the female terminal fixing part; the female terminal includes a plurality of projections which are formed in an inner surface of the "U"-shaped accommodating part and contacted with the male terminal; the accommodating part and the insertion part of the "U"-shaped female and male terminals are bent at one sides or opposite sides thereof to optionally have "C"-shaped interstitial parts. Brief Description of the Drawings

[12] The above and other features of the present invention will be described in reference to certain exemplary embodiments thereof with reference to the attached drawings in which:

[13] FIG. 1 is an exploded perspective view of a connector in accordance with a first exemplary embodiment of the present invention;

[14] FIG. 2 is an assembled perspective view of a connector in accordance with an exemplary embodiment of the present invention;

[15] FIG. 3 is a bottom perspective view of a male connector holder in accordance with an exemplary embodiment of the present invention;

[16] FIG. 4 is a cross-sectional view of the connector in accordance with an exemplary embodiment of the present invention;

[17] FIG. 5 illustrates the mechanism between female and male terminals of the connector in accordance with an exemplary embodiment of the present invention;

[18] FIG. 6 is an assembled perspective view of a connector in accordance with a second exemplary embodiment of the present invention;

[19] FIG. 7 is an exploded perspective view of FIG. 6; and

[20] FIG. 8 is a cross-sectional view of FIG. 6.

Best Mode for Carrying Out the Invention

[21] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. [22] First exemplary embodiment

[23] FIG. 1 is an exploded perspective view of a connector in accordance with a first exemplary embodiment of the present invention FIG. 2 is an assembled perspective view of a connector according to an exemplary embodiment of the present invention; FIG. 3 is a bottom perspective view of a male connector holder in accordance with an exemplary embodiment of the present invention; FIG. 4 is a cross-sectional view of the connector in accordance with an exemplary embodiment of the present invention; and FIG. 5 illustrates the mechanism between female and male terminals of the connector in accordance with an exemplary embodiment of the present invention.

[24] A connector 1 in accordance with an exemplary embodiment of the present invention includes a female connector holder 2 formed with a plurality of symmetrical female terminals 21, and a male connector holder 3 formed with a plurality of symmetrical male terminals 31, which are physically coupled.

[25] In the connector 1 shown in FIGS. 1 through 5, a holder fixing part 32 is formed in a corner of the male connector holder 3 and has a column shape to set and fix a position, and a first holder fixing groove 22 is formed in opposite sides of the female connector holder 2 to correspond to the holder fixing part 32, so that the female and male connector holders 2 and 3 are supported and assembled by binding force doubly together with the connection between the female and male terminals 21 and 31, thereby preventing the terminals from separating due to external shock. Thus, the female and male connector holders 2 and 3 are precisely aligned when they are assembled. After inserting the male connector holder 3 into the female connector holder 2, the female and male connector holders 2 and 3 are firmly fixed. Further, the connector 1 is not disassembled or deformed by external shock or vibration, and maintains electrical contact stably.

[26] To maintain the electrical contact more stably, a "U" -shaped accommodating part

211 is formed in the female terminal 21 and a "U" -shaped insertion part 311 is formed in the male terminal 31, so that the connector 1 can have a stable electrical contact even though there is external shock or vibration in a direction of X-, Y- and Z-axes. Accordingly, the insertion part 311 of the male terminal 31 is smoothly inserted into or released from the accommodating part 211 of the female terminal 21 due to bending by tension and operating space, thereby preventing the female and male terminals 21 and 31 from being deformed.

[27] At this time, the female and male terminals 21 and 31 are assembled in a structure that the "U"-shaped insertion part 311 is accommodated in the "U"-shaped accommodating part 211. Therefore, the uniform electrical contact can be maintained due to bonding force by tension even though it is difficult to ensure uniform processing quality of the female and male terminals 21 and 31. Further, not only the female and male terminals 21 and 31 can be smoothly and easily coupled to and separated from each other, but also the durability of the terminals is enhanced, thereby ensuring the uniform electrical contact.

[28] Further, in order to minimize the height of the female terminal 21 and the male terminal 31 to make the connector 1 small, lightweight and thin, the female and male connector holders 2 and 3 are molded by forming bent female and male terminal fixing parts 212 and 312 in upper ends of one sides of the accommodating part 211 and the insertion part 311 of the female and male terminals 21 and 31, respectively. Accordingly, the female terminal 21 and the male terminal 31 are horizontally supported and fixed.

[29] That is, to solve the problem that the conventional stratified connector has a high height, in the connector 1 in accordance with an exemplary embodiment of the present invention, the female and male terminal fixing parts 212 and 213 of the female and male terminals 21 and 31 are horizontally formed, thereby reducing the height of the connector 1 when the female and male connector holders 2 and 3 are assembled.

[30] In the male terminal 31 , a middle upper part of the male terminal fixing part 312 is bent to form a bending part 313, so that the male terminal 31 is firmly fixed when the male terminal fixing part 312 of the male terminal 31 is embedded while molding the male connector holder 3. Accordingly, the male connector holder 3 is molded to embed the bending part 313 therein, and thus the male terminal 31 is inserted and firmly fixed in the male connector holder 3, thereby minimizing the height of the male connector holder 3.

[31] If the male terminal 31 is formed flatly without the bending part 313, the male terminal 31 has a structure to be not embedded but mechanically inserted in the male connector holder 3, so that a binding force between the male terminal 31 and the male connector holder 3 becomes weak. As the binding force becomes weak, the male terminal 31 may separate from the male connector holder 3 or be not in position due to vibrations.

[32] Further, if the male terminal 31 is flatly embedded in the male connector holder 3, the male terminal 31 should be formed inside the male connector holder 3, so that the height of the male connector holder 3 increases. In this case, it is difficult to make the connector simple, small, lightweight and thin, and an end of the male terminal 31 is needed to be bent in order to facilitate soldering work.

[33] Accordingly, the bending part 313 of the male terminal 31 is employed to make the connector 1 simple, small, lightweight and thin. The bending part 313 may be formed to have a rounded or curved shape, but not limited thereto. Alternatively, the bending part 313 may be formed to have a right angle, a trigonal shape, a tetragonal shape, a polygonal shape, etc. [34] On the other hand, the female terminal 21 is molded to have a fixing pin 213 that is placed on the bottom of the female terminal fixing part 212 and tapered with fixing chocks 214 at opposite sides thereof, to thereby prevent the female terminal 21 from separating when the female and male connector holders 2 and 3 are coupled, keep the evenness of the female terminal 21 uniformly, fix the female terminal 21 firmly, and prevent dust from shattering. Thus, if the female terminal 21 having the fixing chocks 214 is inserted once in the female connector holder 2, it does not separate from the female connector holder 2.

[35] At this time, when the fixing pin 213 having a tapered shape is inserted in a groove

(not shown) of the female connector holder 2, the fixing pin 213 is airtightly coupled to and pushes opposite sides of the groove of the female connector holder 2, thereby preventing wastes such as the dust or the like generated while injection molding the female connector holder 2 from shattering.

[36] If the fixing pin 213 of the female terminal 21 is not airtightly coupled to the female connector holder 2, the wastes or the dust may shatter around the groove for receiving the fixing pin 213 and cause a problem to arise in electrical conductivity. Therefore, the fixing pin 213 is tapered to prevent the problem of the electrical conductivity.

[37] Further, to prevent solder from reaching an electrical contact part and deteriorating the electrical conductivity during the soldering work, a solder blocking groove 215 is formed in a predetermined bending part of the female terminal fixing part 212 of the female terminal 21 and prevents the solder from reaching the electrical contact part. As an alternative to the solder blocking groove 215, a protrusion (not shown) may be formed in a predetermined bending part of the female terminal fixing part 212 and prevent the solder from reaching the electrical contact part. Alternatively, both the solder blocking groove 215 and the protrusion may be formed. In this embodiment, the solder blocking groove 215 is provided by way of example in consideration of design, manufacturing process and production cost of the female terminal 21.

[38] Particularly, referring to FIGS. 4 and 5, a plurality of projections 216 are formed in an inner surface of the female terminal 21 to be in contact with the male terminal 31, so that contact resistance is minimized by maximizing a contact area between the "U"-shaped accommodating part 211 of the female terminal 21 and the "U"-shaped insertion part 311 of the male terminal 31 when the female and male terminals 21 and 31 are coupled, thereby enhancing the electrical conductivity and suppressing the noise. For example, two projections are formed in one side of the inner surface of the female terminal fixing part 212 of the male terminal 21, and one projection is formed in the other side of the inner surface, thereby forming three contact areas between the female terminal 21 and the male terminal 31. [39] Meanwhile, the position and the number of such projections 215 may be optionally varied according to the similar or same shapes of the female and male terminals 21 and 31.

[40] The accommodating part 211 and the insertion part 311 of the "U"-shaped female and male terminals 21 and 31 are formed to have interstitial parts 217 and 315 by bending one sides of the female and male terminals 21 and 31, so that the interstitial parts 217 and 315 enhance locking effect and detachability while allowing the connector 1 to have a rounded structure. Alternatively, the interstitial parts 217 and 31 may be formed by bending opposite sides of the female and male terminals 21 and 31. In this embodiment, because the "U" -shaped accommodating part 211 of the female terminal 21 is stretched by tension to receive the "U"-shaped insertion part 311 of the male terminal 31, the interstitial parts 217 and 315 are formed in one sides of the female and male terminals 21 and 31 by way of example.

[41] With this configuration, the female and male terminals 21 and 31 are easily locked and released with improvement in the binding force and the close contact.

[42] If the "C"-shaped interstitial parts 217 and 315 are formed in both sides of the female and male terminals 21 and 31, the accommodating part 211 of the female terminal 21 increases in tension and a restoring force of the female terminal becomes weak, so that the lifespan and the detachability of the female terminal are shortened and deteriorated, respectively, but the binding force thereof increases.

[43] Further, the accommodating part 211 and the insertion part 311 of the female and male terminals 21 and 31 are rounded such that the female and male terminals 21 and 31 are easily locked to and released from each other.

[44]

[45] Second exemplary embodiment

[46] A second exemplary embodiment of the present invention will be described below with reference to FIGS. 6 through 8.

[47] Referring to FIGS. 6 through 8, a connector in accordance with a second exemplary embodiment of the present invention, which is used for connecting two or more electrical or electronic devices, includes a female connector holder 2 in which a plurality of symmetrical female terminals 21 are inserted in a row, and a male connector holder 3 in which a plurality of symmetrical male terminals 31 are inserted in a row. The female connector holder 3 and the male connector holder 2 are physically coupled such that the female terminal 21 electrically contacts the male terminal 31.

[48] On a top surface of the female connector holder 2, the plurality of female terminals

21 are placed at regular intervals. One end of the female terminal 21 is attached to a circuit board (not shown) by solder. Further, a second holder fixing groove 100a is formed in opposite sides of the upper surface of the female connector holder 2 such that the male connector holder 3 (to be described later) can be fit into the second holder fixing groove 100a.

[49] The female terminal 21 has a first end formed with a "U" -shaped accommodating part 211, and a second end formed with an "L"-shaped deposition part 112 to be deposited on a circuit board by soldering work. Here, the accommodating part 211 and the deposition part 112 are formed as a single body via a female terminal fixing part 212.

[50] Further, a solder guiding groove 113 is formed on a bottom of the deposition part

112, so that the solder can be easily guided during the soldering work.

[51] As the solder is guided into the solder guiding groove 113, a deposition area becomes larger such that the female terminal 21 can be more firmly deposited.

[52] Also, a plurality of solder blocking grooves 215 are formed in a bending part and a flat part of the female terminal fixing part 212 so as to prevent the solder from reaching electrical contact parts of two terminals during the soldering work.

[53] As the plurality of solder blocking grooves 215 are formed in the bending part and the flat pat of the female terminal 21, the solder does not reach the electrical contact part through the solder blocking groove 215, thereby enhancing electrical conductivity.

[54] Additionally, a fixing pin 213 protrudes from the bottom of the female terminal fixing part 212 of the female terminal 21 and is inserted in and fixed to the female connector holder 2. The fixing pin 213 has a "V"-shaped chock 214 at a lateral side thereof. Further, an end of the chock 214 is processed by forging and pressed in the female connector holder 2, thereby preventing the fixing pin 213 from separation.

[55] The male connector holder 3 is inserted in the female connector holder 2 and connects contact points. On a bottom surface of the male connector holder 3, the plurality of male connectors 31 are placed at regular intervals. One end of the male terminal 31 is formed with a "U" -shaped insertion part 31 lbent to be inserted in the accommodating part 211 of the female terminal 21.

[56] Here, in a place where the surfaces of the female and male connector holders 2 and

3are in contact with each other, a coupling groove 120 and a coupling projection 220 are formed in the female and male connector holders 2 and 3, respectively. As the coupling projection 220 is fitted into the coupling groove 120, the male connector holder 3 is more stably fixed in the female connector holder 2.

[57] That is, the coupling projection 220 is formed in an outer surface of the male connector holder 3, and correspondingly the coupling groove 120 is formed in an inner surface of the second holder fixing groove 110a of the female connector holder 2, so that the coupling projection 220 is fitted into the coupling groove 120, thereby stably fixing the male connector holder 3 in the female connector holder 2.

[58] In the female and male connector holders 2 and 3, through holes 101 and 201 are formed on a bottom surface of the female connector holder 2 and a top surface of the male connector holder 3 such that the accommodating part 211 and the insertion part 311 can communicate with the outside. Through the through holes 101 and 201, heat naturally radiates from the female and male terminals 21 and 31 to the outside.

[59] That is, a plurality of heat radiation holes 201 is formed at regular intervals on the top surface of the male connector holder 3 at a position where the accommodating part 211 and the insertion part 311 are electrically contacted with each other, while penetrating the male connector holder 3 perpendicularly. Likewise, a plurality of heat radiation holes 101 is formed at regular intervals on the bottom surface of the female connector holder 2 at positions corresponding to the accommodating part 211, while penetrating the female connector holder 2.

[60] Additionally, as shown in FIG. 8, a plurality of projections I l ia are formed in an opposite upper parts of the inner surface of the accommodating part 211, so that the female and male terminals 21 and 31 are firmly coupled by maximizing a contact areas between the "U" -shaped accommodating part 211 of the female terminal 21 and the "U"-shaped insertion part 311 of the male terminal 31.

[61] In the meantime, the position and the number of such projections I l ia may be optionally varied according to the similar or same shapes of the female and male terminals 21 and 31.

[62]

Industrial Applicability

[63] As described above, in the connector in accordance with an exemplary embodiment of the present invention, the accommodating part and the insertion part of the female and male terminals of the female and male connector holders are formed to have the "U"-shapes, so that the connector can have a simple, small, lightweight and thin structure. Further, the insertion part of the male terminal is detachably inserted in the accommodating part of the female terminal, so that the electrical contact is stably secured even though an external shock or a vibration is given in directions of X-, Y- and Z- axes. Also, the contact resistance is minimized, thereby enhancing the electrical conductivity and reducing the noise.

[64] Further, the female and male terminals having the "U"-shape are smoothly locked to and released from each other by tension, so that they are prevented from deformation even though the female and male terminals are locked to and released many times, thereby enhancing the durability and preventing a short-circuit due to a shock.

[65] Also, the solder guiding groove is formed on the bottom of the deposition part of the female terminal, so that the female terminal can be readily deposited on the circuit board. [66] Further, the plurality of solder blocking grooves are formed in the bending part and the flat part of the female terminal, so that the solder is prevented from reaching the electrical contact part and deteriorating the electrical conductivity, thereby improving the soldering work and enhancing productivity.

[67] Also, the plurality of heat radiation holes are formed on the top and the bottom surface of the female and male connector holders, so that the heat generated from the female and male terminal is radiated to the outside through the heat radiation holes, thereby preventing the connector from overheat, and smoothly discharging moisture. Accordingly, the connector is prevented from swelling, local heating, deformation, etc. due to heat of high temperature.

[68] Although a few embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

[1] A connector used in electrical and electronic appliances and having a structure that a female connector holder formed with a plurality of symmetrical female terminals and a male connector holder formed with a plurality of symmetrical male terminals are physically coupled to each other, characterized in that a holder fixing part is formed in a corner of the male connector holder and has a column shape to set and fix a position, and a holder fixing groove is formed at both sides of the female connector holder to correspond to the holder fixing part to doubly support and fix the connector.

[2] The connector as claimed in claim 1, wherein the female and male terminals of the female and male connector holders have a "U"-shaped accommodating part and a "U" -shaped insertion part, respectively, so that the insertion part of the male terminal is detachably inserted into the accommodating part of the female terminal by tension.

[3] The connector as claimed in claim 2, wherein the female and male connector holders comprise female and male terminal fixing parts that are formed to be bent in one upper parts of the accommodating part and insertion part of the female and male terminals and are embedded while molding the female and male connector holders to minimize the height when the female terminal and the male terminal are coupled.

[4] The connector as claimed in claim 3, wherein the male terminal comprises a bending part formed by bending a middle upper part of the male terminal fixing part.

[5] The connector as claimed in claim 4, wherein the male terminal comprises an operating space for tension in an inner surface of one side or both sides of the "U"-shaped insertion part to be molded.

[6] The connector as claimed in claim 5, wherein the female terminal comprises a fixing pin which is placed on a bottom of the female terminal fixing part and tapered with fixing chocks at both sides thereof to be firmly fixed to the female connector holder.

[7] The connector as claimed in claim 6, wherein the female terminal comprises a solder blocking groove at one side of a bending part of the female terminal fixing part.

[8] The connector as claimed in claim 7, wherein the female terminal comprises a plurality of projections which are formed in an inner surface of the "U"-shaped accommodating part and in contact with the male terminal.

[9] The connector as claimed in claim 8, wherein the "U"-shaped accommodating and insertion parts of the female and male terminals are bent at one sides or both sides thereof to optionally have "C"-shaped interstitial parts.

[10] A connector used in electrical and electronic appliances and having a structure that a female connector holder formed with a plurality of symmetrical female terminals and a male connector holder formed with a plurality of symmetrical male terminals are physically coupled to each other, the connector comprising a holder fixing part which is formed in a corner of the male connector holder and has a column shape to set and fix a position; and a holder fixing groove which is formed at both sides of the female connector holder to correspond to the holder fixing part to doubly support and fix the connector, the connector further comprising: a "U"-shaped accommodating part formed in the female terminal of the female connector holder; a "U"-shaped insertion part formed in the male terminal of the male connector holder; a female terminal fixing part bent in one upper part of the female terminal to be embedded; a male terminal fixing part bent in one upper part of the male terminal to be embedded; a bending part formed by bending in a middle upper part of the male terminal fixing part an operational space formed in an inner surface of one side or opposite sides of "U"-shaped insertion part to be embedded a fixing pin which is placed on a bottom of the female terminal fixing part and has fixing chocks at opposite sides thereof a solder blocking groove formed at one side of a bending part of the female terminal fixing part a plurality of projections which are formed in an inner surface of the "U"-shaped accommodating part and contacted with the male terminal a "C"-shaped interstitial parts formed by bending one sides or opposite sides of the accommodating part of the "U"-shaped female terminal; and a "C"-shaped interstitial parts formed by bending one sides or opposite sides of the insertion part of the "U" -shaped male terminal.

[11] A connector having mechanism that a female connector holder in which a plurality of symmetrical female terminals are inserted in a row, and a male connector holder in which a plurality of symmetrical male terminals are inserted in a row, are physically coupled for electrical contacts, the connector comprising: a coupling projection protruding outwardly from an outer surface of the male connector holder; and a coupling groove formed in an inner surface of the female connector holder in correspondence to the coupling projection, wherein the coupling projection and the coupling groove are coupled so that the male connector is inserted in the female connector holder.

[12] The connector as claimed in claim 11, wherein the female terminal comprises a solder guiding groove on a bottom of a deposition part thereof.

[13] The connector as claimed in claim 12, wherein the female and male terminals comprise a "U"-shaped accommodating part and a "U"-shaped insertion part, respectively, so that the insertion part of the male terminal is detachably inserted in the accommodating part of the female terminal.

[14] The connector as claimed in claim 13, further comprising heat radiation holes which are formed on a bottom surface of the female connector holder and a top surface of the male connector holder, respectively, and allow the insertion part and the accommodating part to communicate with the outside.

[15] The connector as claimed in claim 14, further comprising a plurality of solder blocking grooves which are formed in a bending part and a flat part of the female terminal.

[16] The connector as claimed in claim 15, further comprising a fixing part protruding from the bottom surface of the female terminal and inserted in the female connector holder; and a " V"-shaped chock formed in a lateral side of the fixing part and preventing the fixing part from separation.