CN2789971Y - Matrix Board-to-Board Connector Combination - Google Patents

Abstract

The utility model discloses a matrix type board-to-board connector assembly, comprising a first connector and a second connector. A first buckle piece is fixed on the first connector, and the first buckle piece has a buckle part, which is formed by bending outward and extending from the lower side of the first buckle piece. A second buckle piece is fixed on the second connector, and the second buckle piece has an elastic part, which is bent in a certain shape, so that when the first and second connectors are fully plugged in, the elastic part hits the buckle part of the first buckle piece due to elastic recovery, thereby emitting a knocking sound, so that the user can judge whether the first and second connectors are fully plugged in together.

Description

Matrix Board-to-Board Connector Combination

Technical field

The utility model relates to a board-to-board connector combination, in particular to a matrix type board-to-board connector combination.

Background technique

Please refer to FIG. 10 , which discloses an existing matrix board-to-board connector assembly 20, including a first connector 300 and a second connector 400 that are engaged with each other, and the two connectors 300, 400 are respectively fixed on different A circuit board (not shown in the figure) is used to electrically connect the two circuit boards to achieve signal transmission between the two circuit boards.

Referring to FIG. 11 , the first connector 300 of the conventional matrix board-to-board connector assembly 20 includes a first shell 310 and a plurality of first terminals 320 fixed on the first shell 310 . The first housing 310 has a first substrate 311 . Notches 313 are defined at the corners of the front and rear sides of the first substrate 311 . Sidewalls 314 vertically extend upwards from both left and right sides of the first substrate 311 , and two ends of the sidewalls 314 vertically extend out barrier arms 315 along the front and rear sides of the first substrate 311 . The blocking arm 315 and the two side walls 314 define an accommodating space for accommodating the second connector 400 . Along the extending direction of the blocking arm 315 , the first locking block 316 protrudes from the blocking arm 315 for locking the second connector 400 .

Referring to FIG. 12 , the second connector 400 of the conventional matrix board-to-board connector assembly 20 includes a second housing 410 and a plurality of second terminals 420 fixed on the second housing 410 . A fixing foot 412 extends vertically upward from four corners of the second casing 410 and a second locking block 416 extends laterally. When the second connector 400 is plugged into the first connector 300 , the fixing pin 412 extends downward into the notch 313 of the first connector 300 , and makes the second locking block 416 and the first connector of the first connector 300 The locking blocks 316 are snap-fitted with each other, so as to fix the second connector 400 on the first connector 300 .

However, because the existing matrix board-to-board connector assembly 20 snaps the two connectors 300, 400 together through the snap fit of the first block 316 and the second block 416, the first block 316 and the second block 416 are snapped together. The second locking block 416 is only used for buckling. When plugging the two connectors 300 , 400 , the user cannot be sure whether the first connector 300 and the second connector 400 are completely plugged together.

Utility model content

The purpose of this utility model is to provide a matrix type board-to-board connector combination for the above-mentioned defects in the prior art. During the insertion process of the first connector and the second connector of the matrix type board-to-board connector combination , the user can determine whether the two connectors are fully mated together.

In order to achieve the above purpose, the utility model provides a matrix type board-to-board connector assembly, including a first connector and a second connector. The first connector includes a first shell, a plurality of first terminals and a first snap-fit piece. The first casing has a first base plate and a side plate. The side plate is formed by vertically extending upward from the first base plate, and a gap is opened on the first base plate adjacent to the side plate. A plurality of first terminals are fixed on the first substrate. The first fastening piece has a first base, a fastening part, a first welding foot and a fastening part. The engaging part is fixed on the side plate of the first connector, and is formed by parallel extension of the first base part. The first soldering foot is vertically extended downwards from the lower side of the first base to solder the first fastening sheet to an external circuit board. The fastening part is formed by bending and extending outward from the lower side of the first base part. The second connector includes a second shell, a second terminal and a second buckling piece. The second housing has a second base plate and a guide wall, the guide wall extends vertically downward from the second base plate, and the guide wall is provided with a receiving groove penetrating through the top surface of the second base plate. A plurality of second terminals are fixed on the second substrate. The second fastening piece has a second base, an elastic portion, and a second welding foot; the second base is fixed on the second substrate of the second connector; the elastic portion is accommodated in the receiving groove of the second substrate, and the elastic portion has a fixed end, an adapter arm and a free end, the fixed end is formed by extending vertically downward from the lower side of the second base, the adapter arm is formed by bending and extending outward from the fixed end, and the free end is formed by extending upward from the adapter arm, and The connection between the free end and the adapter arm is first convex outward and then concave inward from bottom to top, forming a transition shape between a convex arc and a concave arc, so that the free end elastically presses against the buckle of the first fastening piece of the first connector The joint part; the second welding foot is vertically extended upward from the upper side of the second base, so as to weld the second buckle piece to another external circuit board.

From the above, during the insertion process of the first and second connectors of the matrix board-to-board connector combination of the present invention, the elastic part of the second snap-fit piece fixed on the second connector elastically presses It is fixed on the first base of the first fastening piece on the first connector, and when the two connectors are fully plugged together, the elastic part elastically recovers so that the free end of the elastic part hits the fastening of the first fastening piece to make a clicking sound to indicate that the two connectors are fully mated together. Therefore, the user can determine whether the two connectors of the matrix board-to-board connector assembly of the present invention are fully plugged together.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Fig. 1 is a three-dimensional assembly diagram of the matrix board-to-board connector assembly of the present invention.

FIG. 2 is a perspective assembly view of the first connector of the matrix board-to-board connector assembly shown in FIG. 1 .

FIG. 3 is an exploded perspective view of the first connector shown in FIG. 2 .

FIG. 4 is a perspective view of a first fastening piece of the first connector shown in FIG. 3 .

FIG. 5 is a perspective assembly view of the second connector of the matrix board-to-board connector assembly shown in FIG. 1 .

FIG. 6 is an exploded perspective view of the second connector shown in FIG. 5 .

FIG. 7 is a perspective view of a second fastening piece of the second connector shown in FIG. 6 .

FIG. 8 is a top view of the matrix board-to-board connector assembly shown in FIG. 1 .

Fig. 9 is a sectional view taken along line IX-IX shown in Fig. 8 .

Fig. 10 is a three-dimensional assembled view of the existing matrix board-to-board connector assembly.

Fig. 11 is a three-dimensional assembled view of the first connector of the conventional matrix board-to-board connector assembly.

Fig. 12 is a three-dimensional assembled view of the second connector of the conventional matrix board-to-board connector assembly.

In the figure, 10, 20. matrix board-to-board connector combination, 100, 300. first connector, 110, 310. first housing, 111, 311. first substrate, 112. first terminal hole, 113A The first notch, 113B. The second notch, 114. The first side plate, 115. The engaging groove, 116. The first fixing hole, 117. The protrusion, 118. The second fixing hole, 119. The second side plate, 119A. Anti-fooling slot, 120, 320. First terminal, 130. First fastening piece, 131. First base, 132. Snapping part, 133. First fixing foot, 134. First welding foot, 135. Second fixing foot, 136. Fastening part, 137. Flange, 200, 400. Second connector, 210, 410. Second housing, 211. Second base plate, 212. Second terminal hole, 213. No. One guide wall, 214. second guide wall, 215. fixing groove, 216. receiving groove, 217. fool-proof block, 220, 420. second terminal, 230. second fastening piece, 231. second base , 232. Holding arm, 233. Elastic part, 234. Fixed end, 235. Adapter arm, 236. Free end, 237. Second welding foot, 313. Notch, 314. Side wall, 315. Blocking arm, 316 . The first block, 412. The fixed foot, 416. The second block.

Detailed ways

Please refer to FIG. 1 , the matrix board-to-board connector assembly 10 of the present invention includes a first connector 100 and a second connector 200 . The first connector 100 and the second connector 200 are respectively soldered to two different circuit boards (not shown in the figure), and the electrical connection between the two circuit boards is achieved through the mating of the two connectors 100 and 200 and signal transmission.

Please refer to FIG. 2 and FIG. 3 , the first connector 100 includes a first housing 110 , a plurality of first terminals 120 and two first engaging pieces 130 . The first housing 110 has a first base plate 111 , and the first base plate 111 is provided with first terminal holes 112 arranged in a matrix in the same number as the first terminals 120 for fixing the first terminals 120 . A first notch 113A and a second notch 113B are formed at the front and rear ends of the first substrate 111 (the rear two notches are not shown in the figure). Between the two notches 113A and 113B at the front end, a first side plate 114 vertically extends upward from the middle of the front end of the first substrate 111 . Adjacent to the first notch 113A, the first side plate 114 is provided with an engaging groove 115, and below the engaging groove 115, the first side plate 114 is also provided with a first fixing hole 116 facing the first substrate 111. . A protrusion 117 is formed on the right side of the front end of the first substrate 111 adjacent to the first notch 113A, and a second fixing hole 118 parallel to the first fixing hole 116 is defined on the protrusion 117 . Between the two notches 113A and 113B at the rear end, two second side panels 119 extend vertically upward from the first base plate 111 , and a fool-proof groove 119A is formed between the two second side panels 119 .

Please refer to FIG. 4 , the first fastening piece 130 is made of metal material, and the first fastening piece 130 has a first base portion 131 . An engaging portion 132 extends parallel to the left side of the first base portion 131 , and a first fixing leg 133 vertically extends backward from the lower side of the engaging portion 132 . The left and right ends of the lower side of the first base 131 respectively extend vertically downwards with two first welding feet 134; A fastening portion 136 extends from the front bend. The upper side of the first base portion 131 is further bent forward to form a folded edge 137 .

Please refer to Fig. 2 again, when the first fastening piece 130 is fixed on the first housing 110, the engaging part 132 is engaged in the engaging groove 115 of the first side plate 114, and the first fixing foot 133 and the second The fixing feet 135 are respectively inserted into the first fixing hole 116 and the second fixing hole 118 , so as to fix the first fastening piece 130 on the first casing 110 . The two first soldering feet 134 pass through the first notch 113A and protrude from the bottom surface of the first substrate 111 , so that the first fastening piece 130 can be soldered to the corresponding circuit board.

Please refer to FIG. 5 and FIG. 6 , the second connector 200 includes a second housing 210 , a plurality of second terminals 220 and two second engaging pieces 230 . The second housing 210 has a second base plate 211 , and the second base plate 211 is provided with second terminal holes 212 which are equal in number to the second terminals 220 and arranged in a matrix for fixing the second terminals 220 . A first connecting wall 213 and a second connecting wall 214 extend vertically downward from the front and rear ends of the second substrate 211 (the two rear connecting walls are not shown in the figure). A fixing groove 215 is defined laterally on the second substrate 211 adjacent to the first guiding wall 213 at the front end. The first guiding wall 213 defines a receiving groove 216 penetrating through the top surface of the second substrate 211 and communicating with the fixing groove 215 . In addition, a fool-proof block 217 extends backward from the middle of the rear end of the second substrate 211 .

Please refer to Fig. 7, the second fastening piece 230 is also made of metal material to improve the wear resistance when it is fastened with the second fastening piece 230 (details will be described later), so that the existing matrix board can be avoided. The combination of board-to-board connectors is not fastened firmly due to repeated buckling wear. The second fastening piece 230 has a second base portion 231 . Two holding arms 232 vertically extend downward from both ends of the lower side of the second base portion 231 . A substantially “U”-shaped elastic portion 233 extends from the lower middle portion of the second base portion 231 . The elastic part 233 has a fixed end 234 , an adapter arm 235 and a free end 236 ; the fixed end 234 extends vertically downward from the lower middle part of the second base 231 ; the adapter arm 235 is bent outward from the fixed end 234 Extended; the free end 236 is extended upward by the adapter arm 235, and the connection between the free end 236 and the adapter arm 235 is first convex outward and then concave inward from bottom to top, forming a transition shape between a convex arc and a concave arc . A second soldering leg 237 vertically extends upward from the middle of the upper side of the second base portion 231 .

Please refer to Fig. 5 again, when the second fastening piece 230 is fixed on the second housing 210, the second base 231 and the two holding arms 232 are fixed in the fixing groove 215 of the second substrate 211, and the second welding leg 237 protrudes from the top surface of the second substrate 211, so as to weld the second fastening piece 230 on another circuit board; the elastic part 233 is accommodated in the receiving groove 216, and the free end 236 of the elastic part 233 is connected to the adapter arm 235 The connection protrudes from the outer surface of the first connecting wall 213 .

Referring to FIG. 1 , FIG. 8 and FIG. 9 , when the second connector 200 is inserted into the first connector 100 , the first guide wall 213 of the second connector 200 is inserted downward into the first connector of the first connector 100 . In the notch 113A, the second guiding wall 214 is inserted into the second notch 113B to guide the insertion of the two connectors 100 , 200 . The fool-proof block 217 is inserted into the fool-proof slot 119A to prevent the two connectors 100, 200 from being reversely inserted. The connection between the free end 236 of the elastic portion 233 of the second snap-fit piece 230 and the connecting arm 235 presses against the first base portion 131 of the first snap-fit piece 130 to make the elastic portion 233 elastically deform; when the second connector 200 When fully plugged into the first connector 100, the elastic part 233 will make the free end 236 collide with the buckle part 136 due to the elastic recovery, thereby making a knocking sound to indicate that the second connector 200 and the first connector 100 have been fully inserted. connected together. In addition, the folded edge 137 of the first base 131 can also guide the second connector 200 to be inserted into the first connector 100 to prevent the upper side of the first base 131 from being damaged when the two connectors 100, 200 are not aligned accurately. The plugging of the two connectors 100 and 200 is blocked along the abutment against the second connector 200 .

As mentioned above, the matrix board-to-board connector assembly of the present invention is fixed on the first connector 100 through the first snap-fit piece 130 and the second snap-fit piece 230 fixed on the second connector 200. When the two connectors 100, 200 are plugged together, the elastic part 233 of the second fastening piece 230 elastically presses against the first base 131 of the first fastening piece 130, and when the two connectors 100, 200 are fully plugged together, The elastic portion 233 returns elastically so that the free end 236 collides with the buckle portion 136 , thereby making a striking sound to indicate that the second connector 200 and the first connector 100 are fully plugged together at this time. Therefore, the matrix board-to-board connector assembly of the present invention can overcome the defects of the existing matrix board-to-board connector assembly.

Claims (5)

1. matrix form board to board connector combination comprises:

First connector, this first connector comprises first housing and a plurality of the first terminal, and first housing has first substrate and side plate, and side plate is extended vertically upward by first substrate and forms, and these a plurality of the first terminals are fixed on first substrate with matrix form; And

Second connector, this second connector comprise second housing and a plurality of second terminal, and second housing has second substrate and connects wall, connect wall and are extended vertically downward by second substrate and form, and these a plurality of second terminals are fixed on second substrate with matrix form;

It is characterized in that: first substrate of first connector offers breach in the adjacent side plates place, inserts for the wall that connects of second connector; Connect and offer the accepting groove that runs through second substrate top surface on the wall; First connector further comprises first fastening piece, this first fastening piece has first base portion, holding section, first welding foot and buckling parts, the holding section is extended in parallel by first base portion and forms, this holding section is fastened on the side plate of first connector, first welding foot is extended downward vertically by the downside of first base portion and forms, and buckling parts is outwards bent to extend by the downside of first base portion and forms; Second connector further comprises second fastening piece, this second fastening piece has second base portion, the elastic portion and second welding foot, second base portion is fixed on second substrate of second connector, elastic portion is contained in the accepting groove of second substrate of second connector, this elastic portion has stiff end, switching arm and free end, stiff end is extended downward vertically by the second base portion downside and forms, the switching arm is outwards bent to extend by stiff end and forms, free end is extended upward by the switching arm and forms, and free end and switching arm junction concave behind evagination earlier from bottom to top and are convex arc and concave arc transition shape, so that free end elasticity compresses the buckling parts of first fastening piece, second welding foot is formed by the upside of second base portion vertical extent that makes progress.

2. matrix form board to board connector combination as claimed in claim 1 is characterized in that: the side plate of first connector offers a slot in contiguous indentation, there, and the holding section of described first fastening piece is fastened in the slot.

3. matrix form board to board connector combination as claimed in claim 2, it is characterized in that: all offer fixing hole on first substrate of first connector and the side plate, the holding section of first fastening piece and the first base portion downside all extend and first base portion and the vertical fixing feet of first welding foot, two fixing feet are inserted respectively in the fixing hole, to fix first fastening piece.

4. matrix form board to board connector combination as claimed in claim 1, it is characterized in that: the first base portion upside of first fastening piece outwards is bent to form a flanging.

5. matrix form board to board connector combination as claimed in claim 1, it is characterized in that: the second substrate vicinity connects the wall place and offers the holddown groove that is communicated with accepting groove, two fixing arms are extended at the second base portion downside two ends of second fastening piece respectively downward vertically, and second base portion of second fastening piece and two fixing arms all are fixed in the holddown groove.

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