KR100920426B1 - Board to Board Type Connectors - Google Patents

Abstract

The board-to-board type connector according to the present invention comprises a female connector holder having a coupling groove coupled to a plurality of female terminals in a row so as to be symmetrical with each other, and fitted into the coupling groove to form an electrical contact with the female terminal. The male connector includes a male connector holder formed by protruding from the upper edge of the coupling protrusion coupled to form a plurality of means are symmetrical with each other, the female terminal 'U'-shaped receiving portion accommodated in the coupling groove and both sides of the receiving portion The first elastic projections respectively protrude in the inner direction of the coupling groove in the middle of the, the means is the 'U' shaped insertion portion formed along the outer circumferential surface of the coupling projection and the outer side of the coupling projection in the middle of the insertion side both sides Each of the arm and means are detached from each other by the elastic deformation of the first elastic projection and the second elastic projection. It is characterized by.

Accordingly, the connector of the board-to-board type according to the present invention has a structure in which the female terminal is symmetrically deformed in both directions when the arm and the means are attached or detached. In this case, there is an advantage in that the arm and means can be stably maintained.

Description

Board to Board Type Connector {Electrical Connector of Board to Board Type}

The present invention relates to a board-to-board type connector, and more particularly, to form a symmetrical coupling protrusion on both sides of the arm and the means for forming the electrical contact, thereby improving the bonding force between the arm and the means and acting on the female terminal. The present invention relates to a board-to-board type connector that can stably maintain an electrical contact state between the arm and the means even when the board-to-board type connector is used for a long time by dispersing the stress to both sides.

In general, electrical connectors used in the electrical and electronics industries are means for electrically connecting two or more electrical or electronic components to each other. As the electrical and electronics industry develops, the frequency of their use increases further. This is especially true when it is difficult to produce the above components integrally or when it is more efficient to produce them separately.

The electrical connector is composed of a female connector holder having a plurality of female terminals and a male connector holder provided with a plurality of means, and by means of their physical coupling, the arm and the means maintain a stable electrical contact state at all times. Constant current can flow.

The specific configuration of the electrical connector having the configuration and function as described above is disclosed in detail in [Document 1] and the like, in particular, the following [Document 1] relates to a board-to-board type connector for electrically connecting a pair of substrates. .

That is, as shown in FIGS. 1 and 2, the connector of the board-to-board type includes a female connector holder 20 in which a plurality of female terminals 22 are symmetrically coupled to each other, and a plurality of means. 12 is composed of male connector holders 10, which are symmetrically arranged in a row.

At this time, the female connector holder 20 and the male connector holder 10 has a structure that is physically coupled to each other, when the female connector holder 20 and the male connector holder 10 is coupled to the female terminal 22 and Means 12 make electrical contacts.

To this end, the means 12 is formed with a 'U'-shaped insertion portion 12a is inserted into the female terminal 22, the female terminal 22' and the insertion portion 12a is fitted ' The U'-shaped receiving portion 22c is formed, and through the physical coupling of the insertion portion 12a and the receiving portion 22c, it is possible to maintain a stable electrical contact state of the arm, means 12,22.

However, in the board-to-board type connector according to the prior art, since the one side portion 22c2 of the female terminal 22 is elastically deformed to form an electrical contact with the means 12, the arm, even with a small force, Although there is an advantage in that the coupling of the means 22 and 12 is easy, on the contrary, there is a problem in that the arm and the means 22 and 12 are easily separated even in the small impact.

In addition, since the stress caused by deformation accompanying detachment of the arm and means 22 and 12 is concentrated only on one side portion 22c2 of the female terminal 22, the elastic force of the deformed portion is reduced during long time use. There is a problem that the electrical contact between the arm, means 22, 12 is not maintained stably.

Further, in the case of the board-to-board type connector according to the related art, one side portion of the female terminal is formed by protrusions 12d1 and 12d2 asymmetrically formed on the means 12 and protrusions 22d formed on one side of the female terminal. 22c2) is deformed so that the arm, means 22, 12 are combined, there is a disadvantage that the click feeling at the moment of engagement is reduced.

As a result, since the user cannot clearly recognize whether the arm and the means 22 and 12 are normally coupled, the electric product to which the substrates are applied is used in a state in which electrical contact between the substrates is poor. There is a problem that causes malfunction and damage of the product.

[Document 1] Korean Patent Publication No. 2007-0116706 (published Dec. 11, 2007)

The present invention is to solve the problems of the prior art as described above, the object of the present invention is the arm, the arm is required for the coupling between the arm, but the arm, the arm is relatively large force is required for separation of the means, It is to provide a board-to-board type connector having a coupling structure of the mandrel.

In addition, another object of the present invention is to distribute the stress acting on the female terminal when the arm, means of detachment of the arm, even when using a board-to-board type connector for a long time can maintain a stable electrical contact between the arm, means To provide a substrate-to-board type connector.

In addition, another object of the present invention is to provide a board-to-board type connector that improves the click feeling when the arm and the means are coupled so that the user can clearly recognize whether the arm and the means are normally coupled.

In order to achieve the above object, a board-to-board type connector according to the present invention includes a female connector holder having a coupling groove coupled to a plurality of female terminals in a row so as to be symmetrical with each other, and fitted into the coupling groove. The female terminal includes a male connector holder formed by protruding from the upper edge of the coupling protrusion coupled to form a plurality of means forming the electrical contact symmetric with each other, the female terminal 'U' accommodated in the coupling groove A first elastic protrusion protruding symmetrically in an inner direction of the coupling groove in the middle of the female receiving portion and both sides of the receiving portion, wherein the means is formed with a 'U'-shaped insertion portion and the insertion portion formed along the outer circumferential surface of the coupling protrusion; It has a second elastic projection protruding symmetrically in the outward direction of the engaging projection in the middle of the two sides, the arm, the means are mutually symmetrical It is characterized in that the detachable from each other by elastic deformation of the second elastic protrusion of the first resilient projection.

In addition, the first elastic projection has a first inclined portion protruding gradually along the insertion direction of the insertion portion from the inlet of the receiving portion, and a height extending from the first inclined portion protruding along the insertion direction The second inclined portion is gradually reduced, wherein the width between the contact points of the first and second inclined portions is narrower than the width between both sides of the insertion portion, and the inclination of the second inclined portion is greater than that of the first inclined portion. It is characterized by.

In addition, a space portion is formed between the inner wall surface of the coupling groove and the accommodation portion to facilitate deformation of the first elastic protrusion during the fitting coupling.

In addition, both sides and the bottom surface of the receiving portion is characterized in that connected by the inclined surface to cushion the impact caused by the deformation of the first elastic projection.

In addition, the second elastic projection, the third inclined portion protruding gradually increases along the insertion direction of the insertion portion, the linear contact portion formed extending in a direction parallel to both sides of the insertion portion from the third slope, and Consists of the fourth inclined portion connecting the bottom contact portion and the bottom surface of the insertion portion and the height protruding along the insertion direction is gradually reduced, between the both sides of the receiving portion and the linear contact portion of the second elastic projection, And an electrical contact formed between both sides of the first elastic protrusion and the insertion part.

In addition, the female terminal extending from both ends of the receiving portion and the female terminal fixed portion coupled to the first fixing groove formed on both sides of the coupling groove, respectively, and the female terminal perpendicular to the female terminal fixing portion and formed outside the female connector holder A welding part is further provided, wherein the female terminal welding part is connected to one end of the female terminal fixing part by a first welding inclination part, and the width of the first welding inclination part is the width of the female terminal welding part and the width of the female terminal fixing part. It is characterized by a narrower.

In addition, at both sides of each of the female terminal fixing portion, at least one first wedge-shaped protrusion is formed to prevent the female terminal from being peeled from the female connector holder, the female when the female terminal is coupled to the female connector holder In order to guide the other end of the female terminal fixing portion to which the terminal welding portion is not connected to the first fixing groove, the cross-sectional area of the other end portion of the female terminal fixing portion is gradually reduced along the engagement direction.

In addition, the means, the means for extending the both ends of the insertion means coupled to the second fixing grooves respectively formed on both sides of the engaging projections, and the means formed on the outer side of the male connector holder perpendicular to the means of the fixing means The welding unit further includes a welding unit, wherein the welding unit is connected to one end of the fixing unit by the second welding inclination unit, and the width of the second welding inclination unit is the width of the welding unit and the fixing unit of the welding unit. It is characterized by a narrower.

In addition, at both sides of each of the means fixing portion, at least one second wedge-shaped protrusion for preventing the detachment of the means from the male connector holder is formed, when the means is welded to the male connector holder In order to guide the other end of the male terminal fixing portion that is not additionally connected to the second fixing groove, the cross-sectional area of the other end of the male fixing portion is gradually decreased along the joining direction.

In addition, each of the coupling groove and the coupling protrusion is a 'ㅁ' shape, each of the coupling protrusion when the coupling coupling to at least one of the edge of the coupling groove is not coupled to the female terminal or the edge of the coupling protrusion is not coupled to the means. A curved or straight chamfer is formed for guiding the coupling grooves.

In addition, the outer surface of the female connector holder is not coupled to the female terminal, the outer surface of the male connector holder is not coupled to the means is characterized in that the step is formed in the inner direction along the height direction.

In addition, the inner bottom surface of the male connector holder is characterized in that the escape groove for accommodating the deformation of the female terminal when the fitting is formed.

As described above, the board-to-board type connector according to the present invention has a larger inclination in the direction of separating the means than the inclination in the direction in which the means is inserted in the first protrusion formed on the female terminal, thereby providing the inclination of the arm and the means. By having a greater force is required at the time of separation than at the time of coupling, there is an advantage in that the arm and means can be stably maintained.

In addition, the board-to-board type connector according to the present invention has a structure in which the female terminal is symmetrically deformed in both directions when the arm and the means are attached or detached. Even when there is an advantage that the arm, means can maintain a stable state of engagement.

In addition, the board-to-board type connector according to the present invention improves the feeling of click by the elastic deformation and restoration of the first and second protrusions symmetrically formed on both sides of the arm, the arm and the arm when the arm is detached. There is an advantage that the arm, means can clearly recognize whether it is normally combined.

Hereinafter, a preferred embodiment of a board-to-board type connector according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 are perspective views illustrating a female connector holder 100 and a male connector holder 200 constituting a board-to-board type connector according to an embodiment of the present invention, respectively, and FIG. 5 is the female connector holder 100. ) And a perspective view showing a coupling state of the male connector holder 200.

3 to 5, the board-to-board type connector according to the present invention is a female connector holder 100 is coupled to a plurality of female terminals 110, a plurality of means 210 is coupled It is configured to include a male connector holder 200.

At this time, the upper surface of the female connector holder 100 is formed with a 'groove' shaped coupling groove 111 in the lower vertical direction, the plurality of female terminals 110 are respectively formed in the coupling groove 111 in the left and right directions. Combined.

In addition, the upper surface of the male connector holder 200 is formed with a 'ㅁ' shaped coupling protrusion 211 is inserted into the coupling groove 111 protruding from the upper edge, the coupling protrusion 211 in the left and right direction ) Is coupled to a plurality of means 210 to form an electrical contact with the female terminal 110, respectively.

In addition, at least one of the edge of the coupling groove 111 is not coupled to the female terminal 110 or the edge of the coupling protrusion 211 is not coupled to the means 210, the coupling protrusion 211 when the fitting coupling. ) Guides 120 and 220 for easily guiding the coupling groove 111 are formed, and the guides 120 and 220 may be preferably implemented as a chamfer having a curved or linear shape.

In addition, the outer surface of the female connector holder 100 to which the female terminal 110 is not coupled, and the outer surface of the male connector holder 200 to which the means 210 are not coupled, respectively, are in the inward direction along the height direction. Stepped portions 130 and 230 are formed.

In this case, the stepped portions 130 and 230 are used to control the position at the time of assembling the female connector holder 100 and the male connector holder 200, and a burr of a gate that may be generated during injection molding may be used. It also performs the function of preventing from protruding to the outside.

6 and 7 are perspective views showing the configuration of the female terminal 110 and the means 210 of the board-to-board type connector according to an embodiment of the present invention, respectively, Figure 8 is a female terminal 110 and the male It is a figure which shows the state just before the coupling of the terminal 210, and FIG. 9 is sectional drawing which shows the state in which the female terminal 110 and the means 210 were couple | bonded.

The female terminal 110 provided in the board-to-board type connector according to the present invention includes a 'U'-shaped receiving portion 112 accommodated in the coupling groove 111 and a middle portion of both sides of the receiving portion 112. First elastic protrusions 113 protruding symmetrically in the inward direction of the coupling groove 111, the first fixing groove 115 extending from both ends of the receiving portion 112, respectively formed on both sides of the coupling groove 111 And a female terminal fixing part 110a coupled to the female terminal fixing part 110a and a female terminal welding part 110b perpendicular to the female terminal fixing part 110a and formed outward of the female connector holder 100.

In addition, the first elastic protrusion 113 is a first inclined portion 113a, the height of which protrudes gradually along the insertion direction of the insertion portion 212 to be described later from the inlet of the receiving portion 112 and the first It is composed of a second inclined portion 113b extending from the first inclined portion 113a and gradually decreasing in height in the insertion direction.

At this time, the inclination of the second inclination portion 113b is formed larger than the inclination of the first inclination portion 113a. By such a configuration, the board-to-board type connector according to the present invention is a female, means 110, 210. When the combination of the small force is required, but the relatively large force is required when the arm, means (110, 210) separation has the advantage that can maintain a stable state of the arm, means (110, 210). .

On the other hand, the means 210, the U-shaped insertion portion 212 formed along the outer circumferential surface of the engaging projection 211 and the outer side of the engaging projection 211 in the middle of the insertion portion 212 both sides. A second elastic protrusion 213 symmetrically protruded from the second fixing protrusion 213 and extending from both ends of the insertion portion 212 coupled to the second fixing grooves 215 respectively formed on both sides of the coupling protrusion 211 ( And a means welding portion 210b perpendicular to the means fixing portion 210a and formed outward of the male connector holder 200a.

In addition, the second elastic protrusion 213 may include a third inclined portion 213a and a third inclined portion 213a, the height of which protrudes along the insertion direction of the insertion portion 212, and both side surfaces of the insertion portion from the third inclined portion 213a. A straight contact portion 213b extending in a direction parallel to 212a and connecting the straight contact portion 213b and the bottom surface 212b of the insertion portion, and the height protruding along the insertion direction is gradually decreased. The fourth inclined portion 213c is formed.

At this time, the inclination of the fourth inclined portion 213c is configured to be the same as or similar to the inclination of the first inclined portion 113a formed on the female terminal 110, so that the small force when the arm and the means 110 and 210 are coupled to each other. In addition, it is preferable that the insertion unit 212 can be inserted into the receiving unit 112.

By the above configuration, the arm, means 110, 210 of the board-to-board type connector according to the present invention is the symmetrical formation of the first elastic projection 113 and the second elastic projection 213 as described above It is detached from each other by elastic deformation.

That is, when the arm and the means 110 and 210 are coupled, the bottom surface 212b and the fourth inclined portion 213c of the means 210 are along the first inclined portion 113a of the female terminal 110. As it is naturally guided into the receiving portion 112, the first elastic protrusion 113 of the female terminal 110 is opened in both left and right directions, and the second elastic protrusion 213 is introduced into the receiving portion 112. When fully inserted, the first elastic protrusion 113 is returned to its original position by elasticity.

In this case, since the width between the first and second inclined portions 113a and 113b is smaller than the width between the two side surfaces 212a of the insertion portion, the first elastic protrusion 113 has the second elastic protrusion 213. When the first elastic protrusion 113 passes through the first elastic protrusion 113, the first elastic protrusion 113 opened to both sides momentarily returns to its original position by the elastic force and collides with both sides of the insertion part 212a.

Therefore, the click sound is improved when the arm and the means 110 and 210 are coupled by the collision sound, so that the user can clearly recognize whether the arm and the means 110 and 210 are normally coupled.

In addition, when the arm, the means 110, 210 are separated, because the third inclined portion 213a of the means 210 is guided along the second inclined portion 113b having a relatively high inclination, the above-described arm, A greater force is required than when the means 110 and 210 are coupled, and as a result, the substrate-to-board type connector according to the present invention can stably maintain the engagement state of the arm and means as described above.

In addition, as described above, the board-to-board type connector according to the present invention has a structure in which the female terminal 110 is deformed bilaterally symmetrically when the female and the female means 110 and 210 are attached and detached. When the attachment and detachment of the stress acting on the female terminal 110 is distributed in both directions.

Therefore, since the stress acting on each of the first elastic protrusions 113 is greatly reduced in comparison with the related art, the elastic force of the arm and the means 110 and 210 is maintained even when used for a long time so that the arm and the means 110 and 210 are used. This has the advantage of keeping the electrical contact between the stably.

In addition, since the width between the linear contact portion 213b is equal to or slightly larger than the width between both sides 112a of the receiving portion, the board-to-board type connector according to the present invention is the female, means (110, 210) Electrical contact is formed between both side surfaces 112a of the receiving portion and the linear contact portion 213b of the second elastic protrusion 213 and between the first elastic protrusion 113 and the both side surfaces 212a of the insertion portion. Can be.

In addition, both sides 112a and bottom 112b of the accommodation portion are connected by the inclined surface 112c, which cushions the impact caused by the deformation of the first elastic protrusion 113 and at the same time both sides 112a of the accommodation portion. ) And a tension applied when a contact is formed between the linear contact portion 213b of the second elastic protrusion 213.

In addition, a space 140 is provided between the inner wall surface 111a of the coupling groove and the accommodation portion 112 to accommodate the deformation of the first elastic protrusion 113, and the male connector holder 200 may be provided. The inner bottom surface is formed with an escape groove 240 for accommodating the deformation of the first elastic protrusion 113.

On the other hand, the female terminal welding portion 110b and the means welding portion 210b is the female terminal fixing portion 110a and the means by the first welding inclination portion 110c and the second welding inclination portion 210c, respectively. It is configured to be connected to one end of the fixing portion (210a).

Therefore, when soldering the female terminal welding portion 110b and the means welding portion 210b to the corresponding substrate, lead is raised along the first welding slope 110c and the second welding slope 210c. As a result, the welding force can be greatly improved.

In addition, the width of the first welding inclination portion (110c) is formed narrower than the width of the female terminal welding portion (110b) and the width of the female terminal fixing portion (110a), the width of the second welding inclination portion (210c) It is formed narrower than the width of the terminal welding portion (210b) and the width of the means fixing portion (210a), by such a configuration, the female terminal welding portion (110b) and the means when assembling the male and male connector holder (100,200) The weld portion 210b may be easily bent in a direction perpendicular to the female terminal fixing portion 110a and the means fixing portion 210a, respectively.

Meanwhile, at least one first wedge-shaped protrusion 110d and a second wedge-shaped protrusion 210d are formed at both sides of the female terminal fixing part 110a and the means fixing part 210a, respectively, which is a female connector holder. It is to prevent the female terminal 110 and the means 210 is peeled off from the 100 and the male connector holder 200, respectively.

At this time, the cross-sectional area of the other end of the female terminal fixing portion (110a) that is not connected to the female terminal welding portion (110b) is configured to gradually decrease along the coupling direction, which is the female terminal (110) female connector holder ( When coupled to 100) is a configuration for easily guiding the other end of the female terminal fixing portion (110a) to the first fixing groove (115).

In addition, the cross section area of the other end of the means fixing portion (210a) that is not connected to the means welder 210b by the same reason is configured to gradually decrease along the coupling direction.

Although the preferred embodiment of the present invention has been described above, the scope of the present invention is not limited to such specific embodiments, and those skilled in the art to which the present invention pertains should be within the scope of the claims of the present invention. It will be possible to make changes or modifications as appropriate.

1 and 2 are cross-sectional views showing male connector holders and female connector holders respectively constituting a board-to-board type connector according to the prior art;

3 and 4 are respectively a perspective view showing a female connector holder and a male connector holder constituting a board-to-board type connector according to an embodiment of the present invention;

5 is a perspective view illustrating a coupling state of the female connector holder and the male connector holder;

6 and 7 are perspective views each showing a female terminal and a male member of a board-to-board type connector according to an embodiment of the present invention.

8 is a view showing a state immediately before coupling of the female terminal and the means;

9 is a cross-sectional view illustrating a state in which the female terminal and the means are coupled.

Claims (12)

A female connector holder having a coupling groove coupled in a row such that a plurality of female terminals are symmetrical with each other; and It includes a male connector holder which is coupled to the coupling groove, the coupling protrusions are formed in a row so that the plurality of means forming the electrical contact with the female terminal is symmetric with each other, protruding from the upper edge, The female terminal includes a 'U'-shaped receiving portion accommodated in the coupling groove, the first elastic projection symmetrically protrudes in the inner direction of the coupling groove in the middle of both sides of the receiving portion, The means has a U-shaped insertion portion formed along the outer circumferential surface of the engaging projection, and the second elastic projection protruding symmetrically in the outward direction of the engaging projection in the middle of the insertion side both sides, The first elastic protrusion has a first inclined portion protruding gradually from the inlet of the receiving portion in the insertion direction of the insertion portion, and a height extending from the first inclined portion and protruding in the insertion direction is gradually increased. It is composed of a second inclined portion that is reduced to, the width between the first elastic projection peak formed in the connecting portion of the first and second inclined portion is narrower than the width between both sides of the insertion portion, the second inclined portion than the first inclined portion The slope is greater, When the fitting is coupled to the arm, the means is a substrate-to-board type connector, characterized in that the first elastic protrusion and the second elastic protrusion is elastically deformed in both symmetrical detachment. delete The method of claim 1, A space portion is formed between the inner wall surface of the coupling groove and the accommodation portion to facilitate deformation of the first elastic protrusion during the fitting coupling. Both sides and the bottom surface of the receiving portion is connected to the board-to-board type connector, characterized in that the inclined surface to buffer the deformation of the terminal due to excessive operation of the first elastic projection. delete The method according to claim 1 or 3, The second elastic protrusion may further include a third inclined portion having a height protruding along the insertion direction of the insertion portion, a linear contact portion extending in a direction parallel to both sides of the insertion portion at the third slope, and the straight line. Consists of a fourth inclined portion connecting the bottom surface of the contact portion and the insertion portion and the height protruding along the insertion direction is gradually reduced, An electrical contact is formed between both sides of the receiving portion and the linear contact portion of the second elastic protrusion when the fitting is coupled, and between both sides of the first elastic protrusion and the insertion portion, The means may include a means fixing part which is extended from both ends of the insertion part and coupled to second fixing grooves respectively formed on both sides of the engaging projection, and a means welding part which is perpendicular to the means fixing part and formed outside of the male connector holder. More, The means welding portion is connected to one end of the means fixing portion by the second welding inclined portion, the width of the second welding inclined portion is characterized in that the width of the means welding portion and the width of the means fixing portion Board to Board Type Connectors. The method according to claim 1 or 3, The female terminal, the female terminal fixing portion coupled to the first fixing groove formed on both sides of the coupling groove extending from both ends of the receiving portion, and the female terminal welding perpendicular to the female terminal fixing portion and formed outside of the female connector holder Have more wealth, The female terminal welding part is connected to one end of the female terminal fixing part by a first welding inclined part, the width of the first welding inclined part is narrower than the width of the female terminal welding part and the width of the female terminal fixing part, At least one first wedge-shaped protrusion is formed on both sides of each of the female terminal fixing parts to prevent the female terminal from being separated from the female connector holder. When the female terminal is coupled to the female connector holder, in order to guide the other end of the female terminal fixing portion to which the female terminal welding portion is not connected to the first fixing groove, the cross-sectional area of the other end portion of the female terminal fixing portion has the coupling direction. Board-to-board type connector, characterized in that gradually decreases along. delete delete The method of claim 5, At both sides of each of the means fixing part, at least one second wedge-shaped protrusion is formed to prevent peeling of the means from the male connector holder. In order to guide the other end of the means fixing part to which the means welding part is not connected when joining the means to the male connector holder, the cross-sectional area of the other end of the means fixing part is along the engagement direction. Board-to-board type connector, characterized in that it gradually decreases. delete delete delete

Images