CN2377699Y - High-density electric connector - Google Patents

Abstract

The utility model relates to a high-density electric connector, comprising an insulating body, a connecting component, a holding component and a plurality of conductive terminals, wherein, the connecting component is provided with an assembly body, the assembly body is extended with plug pin parts, the plug pin parts can be inserted into corresponding position holes on a printed circuit board, and the assembly body is provided with a first and a second bent parts. The holding component is assembled in a containing slot hole on the insulating body, the holding component can be abutted on the second bent part of the connecting component so as to avoid the holding component from being separated from the insulating body, and the utility model can provided firmer connection with the connecting component and the holding component being simultaneously held on the circuit board.

Description

High density electrical connector

The utility model is relevant for a kind of high density electrical connector, refer in particular to a kind of locked mechanism that electric connector firmly can be retained on the circuit board that has, and it has suitable guiding device makes it accurate welding with terminal junction, appropriateness location high density electrical connector.

Be installed in the electric connector on the printed circuit board (PCB), connecting in the plug process with the complementary type butt connector, it must be retained on the circuit board, the contact engaging and separating force when preventing to plug is excessive and electric connector is got loose, and influence electric connector and circuit board between the telecommunication transmission.

See also shown in Figure 1, three-dimensional exploded view for a kind of existing electric connector, this electric connector can be installed on the circuit board 84, by locking member 80 electrical connector body is retained on the circuit board 84, this locking member 80 mainly is provided with one can supply the bolt jointing part 83 of bolt on body, connecting portion 82 from this bolt jointing part 83 root edges bending extension, and by connecting portion 82 ends to the curved pin portion 811 that establishes of circuit board, this pin portion 811 can insert in the corresponding location hole 841 that is located on the circuit board 84, to provide when welding required local retain strength, and can further be soldered on the circuit board 84, so can before and after welding, provide steadiness and the reliability of electric connector terminal (not shown) when electrically engaging.U.S. Patent application the 4th, 943, No. 244, the 5th, 540, No. 598, the 5th, 630, No. 730, the 5th, 709, No. 556 and 5,727, No. 970 etc. case has all disclosed the electric connector structure with similar locking member.

As previously mentioned, the fixing of electric connector and circuit board roughly the pin portion by locking member elastic force and to its further welding come the fixing electric connector, but, when big or plug frequency is higher when the contact engaging and separating force of electric connector, 2 locking components that upward constitute wire fixing state that are easy to make these only be retained on circuit board are because of the stressed too big loosening phenomenon that takes place, and so loosening situation may further influence terminal and make terminal produce the instability of breaking the weldering phenomenon and causing telecommunication to transmit.In addition, these electric connectors are configured in the surface adhering technology that is applied to (Surface Mounting Technology, SMT) under the occasion, when being installed in the same side of circuit board to be welded on electric connector as terminal being changed into surface adhesion type, because it is not provided with any positioner, therefore, the protruding outer terminal position for the usefulness of welding of electric connector that is exposed to is subjected to ectocine easily and bends, rocks or frustrate bent phenomenon, and the bad situation that makes terminal position be difficult for and be easier to be short-circuited.In addition, the locking member of existing structure must lean on its bolt jointing part to be connected on the body, utilize a spigot and body matched affixed again, yet, the member that spigot before bolt is not consolidated and locking member are separate type, must could organize on body through extra processing, its assembling and the process of taking are all very loaded down with trivial details.

The utility model purpose is to provide a kind of high density electrical connector, it is provided with the locked mechanism of a plurality of firm fixing points of tool, its can produce planar retain strength so that electric connector when the butt joint contact engaging and separating force is big, still electric connector firmly can be positioned on the circuit board, and have suitable detent mechanism and its protruding outer high density of terminals part of insulated part that is exposed to can suitably be located.

Creation purpose of the present utility model is achieved through the following technical solutions: high density electrical connector comprises insulating body, locked mechanism and several conducting terminals, be primarily characterized in that: locking component includes connecting elements and fixing member, wherein connecting elements has a winding body, and extension is provided with pin portion on this winding body, it can insert on the printed circuit board (PCB) in the positioning hole corresponding, being provided with first kink on the winding body can be clamped in the corresponding textural of insulating body relatively with second kink in addition, so that the connecting elements group is solid on the location.The fixing component sets is located at accommodating in the slotted eye on the insulating body, it can directly support and end on second kink of connecting elements to avoid its improper disengaging insulating body, then have contact site, interference part and weld part as for conducting terminal, wherein the protruding insulating body that is exposed to of weld part can make these conducting terminal stable position and not yielding like this by the separate slot of the arrival slot of insulating body flange and location division alignment restrictions in addition simultaneously when outer.

According to principal character of the present utility model, also can with connecting elements and the fixing member is one-body molded make, promptly directly vertical dashing sets out a cylindrical holding parts on connecting elements second kink, and screw thread is made in processing on the inboard aperture face of this holding parts, so that holding parts is housed in accommodating in the slotted eye of insulating body equally, so also can reach identical effect.

Compare prior art, the utlity model has following advantage: it can produce planar retain strength so that electric connector when the butt joint contact engaging and separating force is big, still can firmly be positioned electric connector on the circuit board.

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the stereogram that partly decomposes for a kind of existing electric connector.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 looks three-dimensional exploded view in the end that the utility model insulating body and connecting elements, locking component winding concern.

Fig. 4 is the three-dimensional combination figure of the utility model backsight.

Fig. 5 is the bottom view after the utility model combination.

Fig. 6 is the sectional view of Fig. 4 along A-A line direction.

Fig. 7 is the stereogram of the utility model locked mechanism second embodiment.

Please join Fig. 2, the utility model includes members such as insulating body 21, connecting elements 1, fixing member 12 and plurality of conductive terminals 22.

See also Fig. 2 and Fig. 3, wherein insulating body 21 is the lengthwise shape, the one side is made as interface 210, and its relative opposite side then is made as rear surface 211, and insulating body 21 sides that rely on simultaneously circuit board in interface 210 and 211 of rear surfaces then are made as composition surface 212.On interface 210, convex with the docking section 23 that is microscler convex shape, on the front surface of this docking section 23, be provided with in a row some and run through the terminal accommodation holes 24 of docking section 23 and insulating body 21 simultaneously, accommodate within it for conducting terminal 22, and it 211 is extended from the rear surface.The center of rear surface 211 is provided with along the insulating body lengthwise to the flange 29 that protrudes out, it up and down is respectively equipped with several arrival slots 291 with the interference part 222 of location conducting terminal 22 and the coupling part of 223 of weld parts (cooperate consult shown in Figure 6), so that the location of terminal 22 more reliable and more stable (being detailed later) in two surfaces.The root edge that relies on composition surface 212 in addition in the rear surface 211 of insulating body 21 convexes with tabular location division 25, it is positioned at the below of flange 29, this location division 25 is provided with several separate slots 251, and its weld part 223 that can hold conducting terminal 22 (is detailed later) therein.In addition, 211 limit, two ends is respectively to be extended with a protruding arm 26 away from direction from the rear surface, these protruding arms 26 rely on to offer on the side surface (Fig. 3 shows) on composition surface 212 accommodates slotted eye 27, to accommodate fixing member 12, and on the extending end surface of two protruding arms 26, respectively be concaved with winding substrate 10 and first kink 18 (be detailed later) of L shaped slit 28 in order to collecting company's connection member 1, these slits 28 protruding arm 26 inner suitably with accommodate slotted eye 27 and be connected.

The continuous Fig. 2 and shown in Figure 3 that sees also, connecting elements 1 forms for the punching out of metal sheet one, it mainly is provided with a winding substrate 10, the upper limb of this winding substrate forms first kink 18 to a lateral buckling, to being bent to form second kink 14, and on this second kink 14, offer through hole 15 in the front part of winding substrate 10 lower edges with first kink, 18 the same sides.Be extended with two symmetrically arranged pin portions 13 in the downward one of rear section of winding substrate 10 root edges, it can be organized and be retained in the joining hole (not shown) of printed circuit board (PCB).Fixing member 12 is the hollow circular cylinder shape in tool central, threaded hole 16, and it can be housed in accommodating in the slotted eye 16 of insulating body 21, and the screwed hole on it 16 can match with bolt (not shown) so that insulating body 21 is locked on circuit board (not shown).Respectively convex with locating convex block 17 at two of fixing member 12 relative lateral margins, and insulating body 21 accommodate that slotted eye 27 also has and corresponding configuration closely to accommodate simultaneously fixing member 12 and two locating convex blocks 17 thereof, can make fixing member 12 stablize to accommodate to be positioned at like this and accommodate within the slotted eye 27, and can not produce any displacement or turn.In addition, second embodiment of the present utility model also can with connecting elements and the fixing member is one-body molded makes (Fig. 7 shows), promptly from connecting elements 1 ' the second kink 14 ' go up directly vertical dash set out a cylindrical holding parts 12 ', and this holding parts 12 ' the inboard aperture face on processing make screw thread, to make the accommodating in the slotted eye 27 of holding parts 12 ' be housed in insulating body 21 equally, so also can reach identical effect.

See also Fig. 2 again, 22 fens two rows of conducting terminal are arranged in pairs and are housed in the terminal accommodation holes 24 of insulating body 21, each all has contact site 221 to conducting terminal 22,223 3 sections structures of interference part 222 and weld part, wherein contact site 223 is housed in the side that terminal accommodation holes 24 relies on the front surface of docking section 23, when docking, to electrically connect with the current-carrying part that docks electric connector (not shown), interference part 222 then is housed in the side that same terminal accommodation holes 24 relies on rear surface 211, and it can support and provides terminal 22 suitable retain strength on the inwall of terminal accommodation holes 24 admittedly.Extend protruding being exposed to outside the terminal accommodation holes 24 as for weld part 22 3, its after a kink 224 bending dislocation to the composition surface warpage, so that its terminal root edge is resisted against on the circuit board (not shown).The kink 224 of different row's terminals 22 will have opposite bending towards, and can become same row side by side so that weld part 223 is resisted against the end of circuit board.Each terminal 22 weld parts 223 protruding insulating body 21 outer parts that are exposed to suitably mount in flange 29 arrival slots 291 that are convexly equipped with in the middle of insulating body 21 different row's terminal accommodation holes 24, the location that weld part 223 parts of the shape that suspends can be provided make it not be subject to ectocine and bend distortion or with terminals of adjacent 22 conflict short circuits.In addition, these weld part 223 ends can be separated the location by the separate slot 251 of set location division 25 on insulating body 21 composition surfaces 212, the location when being beneficial to keep its welding.

See also shown in Figure 4, when the utility model is assembled into one, earlier conducting terminal 22 is gone into for 24 groups by the terminal accommodation holes on the rear surface 211 of insulating body 21, and by fixing location in addition, interference part 222, and the weld part 223 of conducting terminal 22 can be located from its two ends by flange on the rear surface 211 29 and location division 25 separate slots 251 respectively, causes short circuit or failure welding to prevent weld part 223 positions from offsetting.Now with fixing member 12 from the composition surface of the body 21 that insulate 212 groups go into and the accommodating in the slotted eye 27 of the identical configuration of its tool, then with connecting elements 1 in the rear surface 211 direction groups of the body 21 that insulate are gone into L shaped slit 28 on the protruding arm 26, and consolidate within it to support by some salient points 19 set on the winding substrate 10.First kink 18 and second kink 14 are parallel corresponding shape up and down, therefore can support respectively and end the basal surface that relies on composition surface 212 at L type slit 28 inwalls and protruding arm 26, and with connecting elements 1 strong fix on insulating body 21 and difficult drop-off.In addition, through hole 15 on second kink 14 of connecting elements 1 just has part to be connected with the screwed hole 16 of fixing member 12, pass locking for bolt (not shown), the two opposite sides of this through hole 15 just are positioned at the root edge on the locating convex block 17 of holding body 1 simultaneously, therefore can distinguish two locating convex blocks 17 (consulting shown in Figure 5) of block fixing member 12, deviate from accommodating outside the slotted eye 27 of insulating body 21 to prevent fixing member 12.So, the utility model high density electrical connector is by the interference location of the pin portion 13 corresponding location holes with circuit board (not shown) on the connecting elements 1, and two kinds of different modes of locking of screwed hole on the fixing member 12 16 and bolt (not shown) are retained on the circuit board, form several and become planar fixing point, and make the fixing location of the utility model high density electrical connector more firm.

Claims (13)

1. one kind in order to provide between butt joint electronic component and circuit board the electrically high density electrical connector of path, include insulating body, conducting terminal and locked mechanism, it is characterized in that: insulating body one side is provided with interface to connect with electronic component, side adjacent to interface then is made as the composition surface that leans with circuit board, at least be concaved with a slit at this on respect to the side of interface, and on the appropriate location on insulating body composition surface, be concaved with and the corresponding slotted eye of accommodating of slit; Locked mechanism comprises connecting elements and fixing member, and wherein connecting elements is along accommodating winding in the slit of insulating body near the direction of interface, and it can protrude on the composition surface of insulating body at least and extend to the part that terminates on the circuit board; But the fixing member is along being housed in accommodating in the slotted eye of insulating body perpendicular to the direction release property on composition surface, and it has at least a part directly to support after the connecting elements group is gone into insulating body to terminate on the connecting elements, firmly to be connected on the insulating body with it.

2. high density electrical connector as claimed in claim 1 is characterized in that: locked mechanism is made up of the fastening member of screw lock formula and the connecting elements of tool pin portion.

3. high density electrical connector as claimed in claim 1 or 2 is characterized in that: insulating body with respect to the two ends, another side of interface each to extend a protruding arm away from direction.

4. high density electrical connector as claimed in claim 3 is characterized in that: protruding arm relies on the side surface on composition surface and offers the slotted eye of accommodating that can accommodate the fixing member.

5. high density electrical connector as claimed in claim 3 is characterized in that: respectively be concaved with L shaped slit in order to collecting company's connection member on the extending end surface of two protruding arms, and this L shaped slit with accommodate slotted eye and communicate and constitute receiving space.

6. as high density electrical connector as described in the claim 3, it is characterized in that: insulating body is provided with flange with respect to the another side of interface, this flange is provided with the arrival slot corresponding to number of terminals, and these arrival slots divide to two opposite sides to be offered for difference row conducting terminal to the fastening position wherein.

7. high density electrical connector as claimed in claim 3 is characterized in that: the edge one that relies on its composition surface at insulating body has protruded out the location division, and which is provided with can be for the ccontaining location of the weld part separate slot wherein of terminal.

8. high density electrical connector as claimed in claim 3, it is characterized in that: connecting elements has first kink and second kink, bending towards of this two kink is identical, and first kink is housed in the L type slit of insulating body, and second kink then is against on the composition surface of insulating body.

9. high density electrical connector as claimed in claim 3 is characterized in that: connecting elements is provided with some salient points, with the interference of insulating body slit inwall, with the fixing connecting elements.

10. high density electrical connector as claimed in claim 8 is characterized in that: second kink of connecting elements is provided with through hole, and it can be connected with the screwed hole of fixing member.

11. high density electrical connector as claimed in claim 3 is characterized in that: connecting elements and fixing member are formed in one.

12. high density electrical connector as claimed in claim 3, it is characterized in that: the two opposite sides of fixing member further are provided with locating convex block, it directly installs on second kink in the time of can organizing on insulating body after connecting elements is with the fixing member, so that the fixing member is difficult for dropping out outside the insulating body.

13. high density electrical connector as claimed in claim 3 is characterized in that: the fixing member is cylindrical shape, and its central authorities are provided with screwed hole, to pass through the winding of screw lock mode on circuit board.

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