KR20230122042A - board to board connector - Google Patents

Abstract

The present invention relates to a board-to-board connector, which is used to electrically connect up to a joint connection printed circuit board, and includes an insulating body (1) and a plurality of electrically conductive terminals (2) and a protective frame ( 3), wherein the plurality of electrically conductive terminals 2 are arranged along the longitudinal direction of the insulating body 1 and disposed on the insulating body 1, and the protective frame 3 is arranged along the length of the insulating body 1 coupled to both ends of the direction and located at a point outside the arrangement range of the plurality of electrically conductive terminals 2, the protection frame 3 includes a first protection frame 301 and a second protection frame 302, The first protection frame 301 and the second protection frame 302 are independent of each other. The board-to-board connector has better structural stability.

Description

board to board connector

This application claims priority of a Chinese patent application with an application date of December 28, 2020, an application number of 202011583902.4, and an invention title of “board-to-board connector”, the content of which is hereby incorporated by reference. incorporated into the application.

This application claims priority of a Chinese patent application with an application date of December 28, 2020, an application number of 202011586001.0, and an invention title of “Board-to-board connector”, the contents of which are incorporated herein by reference.

TECHNICAL FIELD This invention relates to the field of electrical connector technology, and more particularly to board-to-board connectors.

A board-to-board connector usually consists of two parts, namely a plug and a socket, both of which consist of a plastic body and an electrically conductive terminal fixedly held in the plastic body; The plastic body mainly serves to fix the location of the insulated and electrically conductive terminals, and the electrically conductive terminals mainly serve to transmit signals. Under normal circumstances, the plug and socket of the board-to-board connector according to the prior art can also enhance its strength by adding a protective support, and at the same time, the protective support can also provide a holding force when the plug and socket are splice-connected. Here, in some prior art, the protective support can also be used as a current terminal. Therefore, the requirements for the bonding strength of the protective support and the plastic body, the elastic force and arm length of the protective support, and the overall structural strength and stability of the board-to-board connector combined with the protective support are all relatively high. In particular, today's board-to-board connectors shows a trend towards miniaturization.

Therefore, it is necessary to submit a new design form for miniaturized products to create board-to-board connectors with high product assembly efficiency and mounting performance stability.

Therefore, a new board-to-board connector is created to satisfy the above demand.

An object of the present invention is to provide a board-to-board connector having superior structural safety by overcoming at least one defect existing in the prior art board-to-board connector.

In order to realize the above object, the present invention uses the following technical solutions.

A board-to-board connector is used to electrically connect a joint to a printed circuit board and includes an insulating body, a plurality of electrically conductive terminals and a protective frame, wherein the plurality of electrically conductive terminals are of an insulating body. Arranged along the longitudinal direction and disposed on the insulating body, the protective frame is coupled to both ends of the insulating body in the longitudinal direction and is located at a point outside the arrangement range of the plurality of electrically conductive terminals, and the protective frame is printed on the upper wall portion and the joint connection It includes a joint connection leg portion used for fixing with the circuit board and a main body portion fixed with the insulation body, and the upper wall portion is coupled to the upper surface of both ends in the longitudinal direction of the insulation body to provide a plurality of electrically conductive terminals outside the arrangement range. Located at the fulcrum, the protection frame further includes an elastic arm portion extending from the joint leg portion and elastically contacting the joint connector.

Preferably, the joint connection leg part realizes integral connection between the elastic arm part and the main body part, and the main body part integrally connects the upper wall part and the joint connection leg part.

Preferably, the insulating body includes an insertion connection space, a bottom wall bonded to the joint connection printed circuit board, and two side walls extending upward from both sides of the bottom wall along the longitudinal direction of the bottom wall, , a plurality of the electrically conductive terminals are disposed in an array on the two side walls, respectively.

Preferably, the elastic arm portion is coupled to at least a portion of an inner wall surface of the sidewall, at least a portion of the elastic arm portion may be elastically displaced along the width direction of the insulating body, and the elastic arm portion may be elastically displaced in the width direction of the insulating body. At least a portion of the contact portion extending to protrude to the inside of the insertion connection space is formed along the.

Preferably, the main body portion includes an outer wall portion, the outer wall portion is coupled to an outer wall surface point of an end along the longitudinal direction of the side wall, and an edge of the outer wall portion close to the joint connection printed circuit board of the joint connection leg portion is bent and extended. It is formed by extending, and the elastic arm portion is formed by bending and extending the edge of the joint connection leg portion.

Preferably, along the width direction of the insulating body, the elastic arm part is formed by bending and extending one side of the joint connection leg part far from the outer wall part, and the outer wall part and the elastic arm part are relative to each other along the width direction of the insulating body. install

Preferably, the elastic arm portion includes a first elastic arm portion, a bend arm portion, and a second elastic arm portion integrally connected to the joint connection leg portion, and the bend arm portion integrally connects the first elastic arm portion and the second elastic arm portion; The first elastic arm part and the second elastic arm part form a step along the width direction of the insulating body, the distance between the first elastic arm part and the outer wall part is smaller than the distance between the second elastic arm part and the outer wall part, and the insulating body Along the longitudinal direction of , the first elastic arm part is close to the end of the side wall, the second elastic arm part is far from the end of the side wall, and the contact part is formed on the second elastic arm part.

Preferably, the elastic arm portion is formed by bending and extending one end of the joint connecting leg portion along the longitudinal direction of the insulating body, the elastic arm portion including an elastic arm and a bending arm, and the elastic arm and the outer wall portion of the insulating body. Installed relative to each other along the width direction, the flexural arm is used to connect the elastic arm and the joint connecting leg, and the contact portion is formed on the elastic arm.

Preferably, the flexion arm is located at an end edge point along the longitudinal direction of the insulating body, and the extending plane of the flexion arm is perpendicular to the extending plane of the elastic arm.

Preferably, the elastic arm part is formed by bending and extending one end of the joint connection leg part along the longitudinal direction of the insulating body, the elastic arm part includes a bending arm, a crosspiece arm and an elastic arm, and the elastic arm and the outer wall part are formed. Installed relative to each other along the width direction of the insulating body, the crossbar arm is located between the upper wall portion and the upper surface of the side wall, and the crossbar arm is installed relative to the joint connection leg portion along the insertion and extraction direction of the joint connector .

Preferably, a gap is formed between the cross bar arm and the upper wall portion along a direction in which the joint connector is inserted and pulled out, and a gap is formed between the cross bar arm and the side wall, and the cross bar arm is formed in a direction in which the joint connector is inserted and pulled out. can be elastically displaced along

Preferably, the upper wall portion includes an upper side wall portion and an upper end wall portion integrally connected, and at least one end edge of the upper wall portion of the end wall portion is bent downward and extends along the longitudinal direction of the insulating body to form an end wall shielding portion, , The end wall shield is coupled to the outer surface and/or the inner surface of the end wall, the lower edge of the end wall shield forms a joint connection leg, and the joint connection leg is correspondingly fixed to the joint connection printed circuit board.

Preferably, the protection frame includes a first protection frame and a second protection frame, the first protection frame and the second protection frame are independent of each other, and the first protection frame is coupled to the insulating body through integral molding. and the second protective frame is coupled to the insulating body through assembly, and the upper wall portion, the joint connecting leg portion, the main body portion, and the elastic arm portion are formed on the second protective frame.

Preferably, the insulating body further includes a block wall formed by extending upwardly at a midpoint of the bottom wall, a block wall protection part is formed in the first protection frame, and the block wall protection part is formed in the longitudinal direction of the block wall. is embedded in the end surface of

Preferably, the block wall protection part is far from the upper edge of one end of the joint connection printed circuit board, and further returns toward the joint connection printed circuit board and extends while bending to form a buried portion, and the buried portion is the length of the block wall. It is buried correspondingly in both ends along the direction, and at one end of the buried portion close to the joint connection printed circuit board, a buried joint connection portion extending further and protruding to the outside of the lower surface of the bottom wall is formed.

Preferably, the first protection frame includes a bottom wall support unit integrally connected to a lower edge of the block wall protection unit, the bottom wall support unit is buried at both ends of the bottom wall in a longitudinal direction, and the bottom wall support unit is It is upwardly exposed to the inside of the insertion connection space, and the bottom wall support portion is downwardly exposed to the lower surface of the bottom wall in close contact with the joint connection printed circuit board.

Preferably, the first protection frame includes a sidewall protection unit, the sidewall protection unit is integrally connected to the bottom wall support unit, and the sidewall protection unit is embedded in inner wall surfaces at both ends of the sidewall in the longitudinal direction to provide a plurality of electric power lines. It is located at a point outside the arrangement range of the conducting terminals.

Preferably, one end of the sidewall protection part far from the joint connection printed circuit board is bent to form a position fixing part, and the position fixing part is buried corresponding to the upper surface point of the side wall far from one side of the joint connection printed circuit board, , At least a part of the position fixing part is exposed to the outside of the upper surface of the side wall to form a position fixing upper surface, and at both ends in the width direction of the insulating body, a position fixing groove is formed by being recessed upward from the lower surface, and the position fixing groove is formed. At least a portion of the top portion is downwardly exposed to the outside of the insulating body through the positioning groove to form a positioning lower surface.

Preferably, the first protection frame further includes an end wall protection part buried corresponding to the inner wall surface of the end wall, and one end of the end wall protection part far from the joint connection printed circuit board is further bent and extended to protrude to the outside of the end wall. A single-wall joint connection is formed.

The board-to-board connector according to the present invention can increase product assembly efficiency and mounting performance stability.

The text below describes in detail specific embodiments of the present invention in conjunction with the drawings, so that those skilled in the art may more clearly understand the above and other objects, advantages and features of the present invention.

The text below describes in detail some specific embodiments of the present invention in an illustrative and non-limiting manner with reference to the drawings. In the drawings, the same or similar members or parts are marked with the same drawing designation. Those skilled in the art should understand that these figures are not necessarily drawn to scale. in the drawing,
1 is a three-dimensional explanatory diagram of a first embodiment of a board-to-board connector according to the present application;
Fig. 2 is a partial three-dimensional exploded view of a first embodiment of a board-to-board connector according to the present application, specifically showing a three-dimensional explanatory view of one of them after the protective frame and the insulating body are separated;
Figure 3 is a partial three-dimensional exploded view of the first embodiment of the board-to-board connector according to the present application, specifically showing a three-dimensional explanatory view after one of the protection frame and support frame and the insulating body are separated;
Fig. 4 is a three-dimensional explanatory view of Fig. 3 viewed from another angle;
5 is a cross-sectional view taken along line AA in FIG. 1;
Fig. 6 is a front view along the longitudinal direction of the insulating body in the sectional view shown in Fig. 5;
7 is a three-dimensional explanatory view of another embodiment of a protection frame of a board-to-board connector according to the present application;
Fig. 8 is a three-dimensional explanatory view of the protective frame shown in Fig. 7 viewed from another angle;
Fig. 9 is a bottom view of the protective frame shown in Fig. 7;
Fig. 10 is a three-dimensional explanatory diagram of a second embodiment of a board-to-board connector according to the present application;
Fig. 11 is a cross-sectional view along line BB in Fig. 10;
Fig. 12 is a partial three-dimensional exploded view of a second embodiment of a board-to-board connector according to the present application, a three-dimensional explanatory view after one protective frame and an insulating body are separated;
Fig. 13 is a three-dimensional explanatory view of Fig. 12 viewed from another angle.

1 to 6, in the first embodiment of the board-to-board connector disclosed by the present application, the board-to-board connector is electrically connected to the joint connection printed circuit board. The board-to-board connector includes an insulating body (1), a plurality of electrically conductive terminals (2) and a protective frame (3), and the plurality of electrically conductive terminals (2) is formed in an insulating body (1). are arranged along the longitudinal direction of the insulating body 1, and the protective frame 3 is coupled to both ends of the insulating body 1 in the longitudinal direction to a point outside the arrangement range of the plurality of electrically conductive terminals 2. located in

As shown in FIGS. 1 to 6, the insulating body 1 has an insertion connection space 10 formed, a bottom wall 11 bonded to the joint connection printed circuit board, and a longitudinal direction of the bottom wall 11. Two side walls 12 formed by extending upward from both sides of the bottom wall 11 along the bottom wall 11, two end walls formed by extending upward from both sides of the bottom wall 11 along the width direction of the bottom wall 11 (13) and a block wall (14) formed by extending upwardly at an intermediate point of the bottom wall (11), and a plurality of the electrically conductive terminals (2) are respectively arranged on the two side walls (12). do. The bottom wall 11, the two side walls 12, the two end walls 13 and the block wall 14 jointly define and form an insertion connection space 10 with an upward opening.

As can be seen with reference to FIGS. 1 to 6, each of the protective frames 3 includes a first protective frame 301 and a second protective frame 302, and the first protective frame 301 and The second protection frames 302 are independent of each other, the first protection frames 301 are integrally molded and combined with the insulating body 1, and the second protection frames 302 are assembled to the insulating body 1 ) is bound to

2 to 6, a block wall protection part 3011 is formed in the first protection frame 301, and the block wall protection part 3011 is formed in the longitudinal direction of the block wall 14. embedded in the end surface. The block wall protector 3011 is used to protect the structural strength of the block wall 14 and at the same time protects the block wall 14 from being scratched and damaged when inserted into the joint connector. The block wall protection part 3011 is far from the upper edge of one end of the joint connection printed circuit board, and further returns toward the joint connection printed circuit board and extends while being bent to form a buried portion 3014, the buried portion 3014 is buried correspondingly in both ends along the longitudinal direction of the block wall 14, and one end of the buried portion 3014 close to the joint connection printed circuit board extends further and extends to the lower surface of the bottom wall 11 A buried joint connection portion 3015 protruding to the outside is formed. The buried portion 3014 is used to increase the bonding strength between the first protection frame 301 and the insulating body 1, and the buried joint connection portion 3015 is mold core when integrally molded. is used to fix the position of the first protection frame 301, and at the same time, the buried joint 3015 can be used to weld and fix the joint connector.

The first protection frame 301 further includes a bottom wall support part 3012 integrally connected to a lower edge of the block wall protection part 3011, and the bottom wall support part 3012 is connected to the bottom wall 11 is buried at both ends in the longitudinal direction, the bottom wall support part 3012 is exposed upward to the inside of the insertion connection space 10, and the bottom wall support part 3012 has the bottom wall 11 connected to the joint connection printed circuit board. It is exposed downward to the closely attached lower surface and is used to fix the position of the mold core during integral molding. The bottom wall support 3012 is used to increase the structural strength of the bottom wall.

The first protection frame 301 includes a sidewall protection unit 3013, the sidewall protection unit 3013 is integrally connected to the bottom wall support unit 3012, and the sidewall protection unit 3013 is integrally connected to the sidewall support unit 3012. One end of the side wall protector 3013 buried in the inner wall surface at both ends in the longitudinal direction of (12), located outside the arrangement range of the plurality of electrically conductive terminals 2, and far from the joint connection printed circuit board It is bent to form a position fixing part 3016, and the position fixing part 3016 is buried to correspond to the upper surface point of the side wall 12 far from one side of the joint connection printed circuit board, and the position fixing part ( 3016) is at least partially exposed to the outside of the upper surface of the side wall 12 to form a position fixing upper surface 30161, and both ends in the width direction of the insulating body 1 are recessed upward from the lower surface to form a position fixing groove. 111, and at least a portion of the position fixing portion 3016 is downwardly exposed to the outside of the insulating body 1 through the position fixing groove 111 to form a position fixing lower surface 30162. The position fixing upper surface 30161 and the positioning lower surface 30162 are used to fix the position of the mold core during integral molding, and at the same time, the position fixing part 3016 guides the joint connection connector to insert the connection space ( 10), and in addition, the side wall protector 3013 can reinforce the structural strength of the side wall.

Furthermore, the first protection frame 301 further includes an end wall protection part 3017 buried to correspond to the inner wall surface of the end wall 13, and the end wall protection part 3017 is a bottom wall support part 3012 An end wall joint connection portion 3018 is formed at one end of the end wall protection unit 3017, which is connected integrally with and is far from the joint connection printed circuit board, further bent and extended and protrudes to the outside of the end wall 13. The end wall protection portion 3017 is used to increase the structural strength of the end wall 13, the end wall joint connection portion 3018 is used to fix the position of the mold core during integral molding, and at the same time, the end wall joint connection portion ( 3018) is also the raw material connection point of the raw material transport belt. In some embodiments, the single wall joint connector 3018 may be applied to electrically contact the second protective frame 302 . The first protection frame 301 partially overlaps the second protection frame 302 along the direction in which the joint connection connector is inserted and pulled out, and in the present application, in detail, the protection part 3017 and the single wall joint connection part 3018 And the upper wall portion 312 of the single wall described in the following sentence partially overlaps along the direction in which the joint connector is inserted and pulled out.

The present application installs a first protective frame 301 and enhances the strength of the insulating body 1 through the first protective frame 301, in particular, the structural strength of both end points in the longitudinal direction of the insulating body 1, At the same time, the first protection frame 301 is designed as a combined structure matched with the bottom wall 11, the side wall 12, the end wall 13 and the block wall 13, so that the bottom wall 11, the side wall 12 ), the overall structural strength between the end wall 13 and the block wall 13 is ensured, and at the same time, at the point corresponding to the bottom wall 11, the side wall 12, the end wall 13 and the block wall 13 The inner wall surface can be strengthened, and the joint connector can be effectively prevented from being inserted and caught to damage the insulating body 1.

As can be seen with reference to FIGS. 2 and 4 , the second protective frame 302 includes an upper wall portion 31 , joint connection leg portions 32 and a main body portion (not shown). The upper wall part 31 is coupled to the upper surface of both ends of the insulating body 1 in the longitudinal direction and is located at a point outside the arrangement range of the plurality of electrically conductive terminals 2 . The joint connection leg portion 32 is used to fix the joint connection printed circuit board. The main body part is fixed to the insulating body (1). The second protection frame 302 further includes an elastic arm portion 34 formed by the joint connection leg portion 32 extending, and the elastic arm portion 34 is elastically connected to the joint connection connector (not shown). used to contact

As can be seen with reference to FIGS. 2 to 4 , in detail, the joint connection leg part 32 integrally connects the elastic arm part 34 and the main body part, and the main body part connects the top wall part 31 and the joint connection leg 32 are integrally connected. The elastic arm part 34 is coupled to at least a part of the inner wall surface of the side wall 12, and at least a part of the elastic arm part 34 can be elastically displaced along the width direction of the insulating body 1, The elastic arm portion 34 is formed with a contact portion 3404 extending along the width direction of the insulating body 1 so that at least a portion thereof protrudes into the insertion connection space 10 . The contact portion 3404 is used to implement electrical connection with the joint connector.

As can be seen with reference to FIGS. 2 and 3 , the main body portion includes an outer wall portion 331, and the outer wall portion 331 is coupled to a point on the outer wall surface of the end portion along the longitudinal direction of the side wall 12. The joint connection leg portion 32 is formed by bending and extending the edge of the outer wall portion 331 close to the joint connection printed circuit board, and the elastic arm portion 34 is formed at the edge of the joint connection leg portion 32. is formed by bending and elongating. Along the width direction of the insulating body 1, the elastic arm portion 34 is formed by bending and extending one side of the joint connection leg portion 32 far from the outer wall portion 331, and the elastic arm portion 34 It extends along the longitudinal direction of the insulating body 1, and the outer wall portion 331 and the elastic arm portion 34 are installed relative to each other along the width direction of the insulating body 1.

As shown in FIG. 4 , the elastic arm part 34 includes a first elastic arm part 3401, a bending arm part 3403 and a second elastic arm part 3402 integrally connected to the joint connection leg part 32. . The bent arm part 3403 connects the first elastic arm part 3401 and the second elastic arm part 3402 integrally. The first elastic arm part 3401 and the second elastic arm part 3402 form a step along the width direction of the insulating body 1 . The distance between the first elastic arm part 3401 and the outer wall part 331 is smaller than the distance between the second elastic arm part 3402 and the outer wall part 331 . The first elastic arm portion 3401 along the longitudinal direction of the insulating body 1 is close to the end of the side wall 12, the second elastic arm portion 3402 is far from the end of the side wall 12, and the contact portion ( 3404 is formed on the second elastic arm portion 3402.

As shown in FIGS. 1 to 4 , the upper wall portion 31 includes an upper side wall portion 311 and an upper end wall portion 312 integrally connected. The upper wall portion 311 of the side wall is coupled to the upper surface of the end portion of the side wall 12 in the longitudinal direction. The end wall upper wall portion 312 is coupled to the upper surface of the end wall 13 . At least one end edge of the end wall upper wall portion 312 along the longitudinal direction of the insulating body 1 is bent downward and extended to form an end wall shield 3121. The end wall shield 3121 is coupled to the outer and/or inner surface of the end wall 13 . The lower edge of the short wall shield 3121 forms a joint bridge 31211. The joint connection leg portion 31211 is correspondingly fixed to the joint connection printed circuit board.

As can be seen with reference to FIGS. 1 to 6 , furthermore, the upper surface of the upper wall portion 31 of the second protective frame 302 is higher than that of the first protective frame 301 and the upper surface of the side wall 12 An arcuate guide surface 3101 is formed on the inner side of the upper wall portion 31 closer to the insertion connection space 10 through a draft process. In this design, the first protection frame 301 can be used as the first layer of protection to protect the board-to-board connector, and at the same time, a possible joint connector is inserted into the board-to-board connector to perform the joint connection. When doing so, it first contacts the first protection frame 301 and is guided by the first protection frame 301 . The second protection frame 302 serves as secondary induction and protection. In addition, the protection frame 3 is designed as a two-piece type, where the first protection frame 301 is combined and fixed with the insulating body 1 through integral molding, and the second protection frame ( 302) can be combined with and fixed to the insulating body 1 through assembly to lower the difficulty of the manufacturing process. Therefore, a single member (protective frame 3) having an excessively complex structure is disadvantageous to processing and manufacturing on one side, disadvantageous to matching and assembling with the insulating body 1 on the other side, disadvantageous to the realization of functions, and one The relatively complex members of the two-piece design are disassembled, assembled, and designed according to the functional requirements of the protective frame 3 located at different points to better satisfy the overall performance requirements, while reducing the processing difficulty and reducing the manufacturing process. process can be reduced.

As can be seen with reference to FIGS. 7, 8 and 9, in another embodiment of the second protection frame 302 of the board-to-board connector according to the present application, the second protection of the above and first embodiments The frame 302 has the following differences. That is, the structure of the elastic arm part 34 and the connection position between the elastic arm part 34 and the joint connection leg part 32 are different. In detail, the elastic arm part 34 is a joint along the longitudinal direction of the insulating body 1. One end of the connecting leg part 32 is formed by bending and extending, and the elastic arm part 34 includes an elastic arm 341 and a bending arm 342, and the elastic arm 341 and the outer wall part 331 ) is installed relative to each other along the width direction of the insulating body 1, the flexion arm 342 is used to connect the elastic arm 341 and the joint connection leg 32, and the contact portion 3404 is It is formed on the elastic arm 341. In addition, the bending arm 342 is located at the end edge point along the longitudinal direction of the insulating body 1, and the plane where the bending arm 342 extends is the plane where the elastic arm 341 extends. is perpendicular to In addition, the other structure of the second protection frame 302 is the same as that of the first embodiment, and the structure corresponding to the first embodiment and reference numerals are used together, and the second protection frame 302 disclosed by the above embodiment is It can also be coupled to the insulating body 1 described in the first embodiment.

10 to 13, in the second embodiment of the board-to-board connector according to the present application, the main difference between the second embodiment and the first embodiment is in the structure of the second protection frame 302, Further, the difference between the second protection frame 302 is mainly in the structure of the elastic arm 34 and the connection position between the elastic arm 34 and the joint connection leg 32, and in detail, the elastic arm 34 34 includes a bending arm 342, a crosspiece arm 343 and an elastic arm 341, the bending arm 342 of the joint connecting leg 32 along the longitudinal direction of the insulating body 1 It is formed by bending and extending one end edge upward. The cross bar arm 343 is formed by further bending and extending the bending arm 342, the cross bar arm 343 is located between the upper wall portion 31 and the upper surface of the side wall 12, and the cross bar arm 343 is The arm 343 is installed relative to the joint connection leg 32 along the direction of inserting and pulling out the joint connection connector and is installed to face the upper wall portion 31, and the elastic arm 341 is inserted into the connection space 10 ), one edge of the crossbar arm 343 is bent and extended, and the elastic arm 341 and the outer wall portion 331 are installed relative to each other along the width direction of the insulating body 1.

In the second embodiment, a gap is formed between the cross bar arm 343 and the upper wall portion 31 along the direction in which the joint connector is inserted and pulled out, and a gap is formed between the cross bar arm 343 and the side wall 12. A gap is formed, and the crossbar arm 343 can be elastically displaced along the direction of inserting and pulling out the joint connector.

The insulating body 1 of the second embodiment is almost the same as that of the first embodiment, and only a part of the structure is adjusted so as not to collide with respect to a point corresponding to the elastic arm 34. In addition, other structures of the second embodiment are Since structures and reference numerals corresponding to the first embodiment are identical to those of the embodiment, they are not repeated here.

In a plurality of embodiments disclosed by the present application, the joint connection leg portion 32 of the second protection frame 302 is used to fix the joint connection to the welding machine of the printed circuit board, and the elastic arm portion 34 is used for joint connection. The leg portion 32 is designed to be formed by directly bending and extending, and in this case, it is possible to ensure that the elastic displacement of the elastic arm portion 34 is not influenced or interfered with by other structures. When the joint connector and the board-to-board connector perform a joint connection, the joint connector does not transfer pressure, shock, etc. of the second protection frame 302 to the elastic arm 34 . In particular, when the joint connector adheres to or applies an impact to the upper wall portion 31, the elastic deformation or plastic deformation of the upper wall portion 31 is not transmitted to the elastic arm portion 34 by the outer wall portion 331. In this case, the position of the elastic arm portion 34 can be maintained within one controllable range with considerable stability, and furthermore, the contact stability when performing the joint connection for the joint connector and the board-to-board connector, particularly , It is possible to improve the stability of the joint connection performed with respect to the elastic arm portion 34 of the second protection frame 302 and the joint connection connector.

Besides the above differences, other structures of the second embodiment are almost the same as those of the first embodiment and will not be described again. Structure descriptions in the specification and structure symbols in the drawings apply equally.

As described above, those skilled in the art have described a plurality of illustrative embodiments of the present invention in detail, but still based on the disclosure of the present invention under the circumstances without departing from the spirit and scope of the present invention It should be appreciated that various other variations or modifications consistent with the principles of the invention may be directly determined or derived. Accordingly, it should be understood and appreciated that the scope of the present invention includes all such and other variations or modifications.

Claims (19)

In a board-to-board connector,
It is used to electrically connect to the joint connection printed circuit board and includes an insulating body, a plurality of electrically conductive terminals and a protective frame, wherein the plurality of electrically conductive terminals are arranged along the longitudinal direction of the insulating body and disposed on the insulating body, The protection frame is coupled to both ends in the longitudinal direction of the insulating body and is located outside the arrangement range of the plurality of electrically conductive terminals, and the protection frame is a joint connection leg portion used to fix the upper wall portion and the joint connection printed circuit board. and a main body portion fixed to the insulation body, wherein the upper wall portion is coupled to an upper surface of both ends of the insulation body in a longitudinal direction and is located at a point outside the arrangement range of the plurality of electrically conductive terminals, and the protective frame is the joint connection bridge. A board-to-board connector characterized in that it further comprises an elastic arm portion formed by extending from the portion and elastically contacting the splice connector. According to claim 1,
The joint connection leg part realizes integral connection between the elastic arm part and the main body part, and the main body part integrally connects the upper wall part and the joint connection leg part. According to claim 2,
The insulating body includes a bottom wall in which an insertion connection space is formed, bonded to the joint connection printed circuit board, and two side walls extending upward from both sides of the bottom wall along the longitudinal direction of the bottom wall, A board-to-board connector, characterized in that electrically conductive terminals are disposed in an array on the two side walls, respectively. According to claim 3,
The elastic arm portion may be coupled to at least a portion of an inner wall surface of the sidewall, at least a portion of the elastic arm portion may be elastically displaced along the width direction of the insulating body, and the elastic arm portion may be at least along the width direction of the insulating body. A board-to-board connector characterized in that a contact part is formed so that a part of it protrudes to the inside of the insertion connection space. According to claim 3,
The main body portion includes an outer wall portion, the outer wall portion is coupled to a point on the outer wall surface of an end portion along the longitudinal direction of the side wall, and the joint connection leg portion is formed by bending and extending an edge of the outer wall portion close to the joint connection printed circuit board. The board-to-board connector according to claim 1 , wherein the elastic arm portion is formed by bending and extending an edge of the joint connection leg portion. According to claim 5,
The elastic arm part along the width direction of the insulating body is formed by bending and extending one side of the joint connecting leg part far from the outer wall part, and the outer wall part and the elastic arm part are installed relative to each other along the width direction of the insulating body. board-to-board connector. According to claim 6,
The elastic arm unit includes a first elastic arm unit, a flexion arm unit, and a second elastic arm unit integrally connected to the joint connection leg unit, the flexure arm unit integrally connects the first elastic arm unit and the second elastic arm unit, and the first elastic arm unit integrally connects the first and second elastic arm units. The elastic arm part and the second elastic arm part form a step along the width direction of the insulating body, the distance between the first elastic arm part and the outer wall part is smaller than the distance between the second elastic arm part and the outer wall part, and the length direction of the insulating body wherein the first elastic arm part is close to the end of the side wall, the second elastic arm part is far from the end of the side wall, and the contact part is formed on the second elastic arm part. According to claim 5,
The elastic arm portion is formed by bending and extending one end of the joint connection leg portion along the longitudinal direction of the insulating body, the elastic arm portion includes an elastic arm and a bending arm, and the elastic arm and the outer wall portion extend along the width direction of the insulating body. The board-to-board connector according to claim 1 , wherein the flexible arm is used to connect the elastic arm and the joint connecting leg, and the contact portion is formed on the elastic arm. According to claim 8,
The board-to-board connector according to claim 1 , wherein the flexion arm is located at an end edge point along the longitudinal direction of the insulating body, and the extending plane of the flexion arm is perpendicular to the extending plane of the elastic arm. According to claim 9,
The elastic arm portion is formed by bending and extending one end of the joint connection leg portion along the longitudinal direction of the insulating body, the elastic arm portion includes a bending arm, a crosspiece arm, and an elastic arm, and the elastic arm and the outer wall portion of the insulating body. It is installed relative to each other along the width direction, the crossbar arm is located between the upper wall portion and the upper surface of the side wall, and the crossbar arm is installed relative to the joint connection leg portion along the direction in which the joint connection connector is inserted and pulled out. board-to-board connector. According to claim 10,
A gap is formed between the cross bar arm and the upper wall portion along the direction in which the joint connector is inserted and pulled out, a gap is formed between the cross bar arm and the side wall, and the cross bar arm is tang along the direction in which the joint connector is inserted and pulled out. A board-to-board connector characterized in that it can be sexually displaced. According to claim 3,
The upper wall portion includes an upper side wall portion and an upper end wall portion integrally connected, and at least one end edge of the upper wall portion of the end wall portion is bent downward and extends along the longitudinal direction of the insulating body to form an end wall shielding portion, The board-to-board, characterized in that the shield is coupled to the outer surface and / or the inner surface of the end wall, the lower edge of the end wall shield forms a joint connection leg, and the joint connection leg is correspondingly fixed to the joint connection printed circuit board. board connector. According to claim 3,
The protection frame includes a first protection frame and a second protection frame, the first protection frame and the second protection frame are independent of each other, the first protection frame is coupled to the insulating body through integral molding, The board-to-board connector according to claim 1 , wherein the second protection frame is coupled to the insulating body through assembly, and the upper wall portion, the joint connection leg portion and the main body portion, and the elastic arm portion are formed on the second protection frame. According to claim 13,
The insulating body further includes a block wall formed by extending upwardly at a midpoint of the bottom wall, a block wall protection part is formed on the first protection frame, and the block wall protection part is formed on an end surface of the block wall in the longitudinal direction. Board-to-board connector, characterized in that buried in. According to claim 14,
The block wall protection part is far from the upper edge of one end of the joint connection printed circuit board, and further returns toward the joint connection printed circuit board and extends while bending to form a buried portion, wherein the buried portion follows the longitudinal direction of the block wall. A board-to-board connector, characterized in that a buried joint joint is buried correspondingly in both ends and at one end of the buried portion close to the joint connection printed circuit board is formed a further extension and protrudes to the outside of the lower surface of the bottom wall. According to claim 15,
The first protection frame includes a bottom wall support part integrally connected to a lower edge of the block wall protection part, the bottom wall support part is buried at both ends of the bottom wall in a longitudinal direction, and the bottom wall support part is inserted into a connection space. The board-to-board connector according to claim 1 , wherein the bottom wall support part is exposed downward to a lower surface in close contact with the joint connection printed circuit board. According to claim 16,
The first protection frame includes a sidewall protection unit, the sidewall protection unit is integrally connected to the bottom wall support unit, and the sidewall protection unit is embedded in inner wall surfaces at both ends of the sidewall in the longitudinal direction of the plurality of electrically conductive terminals. A board-to-board connector, characterized in that it is located at a point outside the placement range. According to claim 17,
One end of the sidewall protection part far from the joint connection printed circuit board is bent to form a position fixing part, and the position fixing part is buried to correspond to a point on the upper surface of the side wall far from one side of the joint connection printed circuit board. At least a portion of the fixing part is exposed to the outside of the upper surface of the side wall to form a position fixing upper surface, and at both ends of the insulating body in the width direction, a position fixing groove is formed by being recessed upward from the lower surface, and at least a part of the position fixing part is formed. A board-to-board connector, characterized in that a portion thereof is downwardly exposed to the outside of the insulating body through the positioning groove to form a positioning lower surface. According to claim 3,
The first protection frame further includes an end wall protection part buried corresponding to the inner wall surface of the end wall, and one end of the end wall protection part far from the joint connection printed circuit board is further bent and extended to protrude to the outside of the end wall joint. A board-to-board connector, characterized in that a connection portion is formed.