CN2454931Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, composed of an insulation main body, a plurality of conductive terminals, and a plurality of components for welding and fixedly clamping. The insulation main body forms an installing channel which extends along the side face to the bottom face, and a point adjacent to the end of the installing channel on the bottom is provided with a chock block. Each of the components for welding and fixedly clamping is in an L shape, and comprises a base part which are provided with a plurality of bulges and a fixedly clamping part which is vertical with the base part, the base part is inserted into the installing channel and is fixed into the installing channel by the interference of the bulges, and the fixedly clamping part is positioned on the bottom face of the insulation main body and is abutted on the chock block for preventing the fixedly clamping from deforming when excessive pressure is born; furthermore, the bottom is provided with a positioning post for positioning a circuit board correctly.

Description

Electric connector

The relevant a kind of electric connector of the utility model refers in particular to a kind of SMT (Surface Mounting Technology, surface mount technology) type electric connector for socket that is applied to communication network.

The electric connector that is installed on the circuit board all has at least one fastening assembly usually so that electrical connector body is fixed on the circuit board.Fastening assembly is usually designed to an assembly and being assembled on the electric connector independently, and has a holding parts and fixedly connected with circuit board so that electrical connector body firmly is installed on circuit board.Usually a hole that runs through is set in the practice on circuit board, makes the some of the holding parts of fastening assembly penetrate this hole and fixing, perhaps be welded on the circuit board by the holding parts of the mode of welding with fastening assembly with the elastic force interference of holding parts self.

As United States Patent (USP) the 6th, 042, a kind of fastening assembly that is installed on the electric connector bottom that is disclosed for No. 420, this fastening assembly is to become step-like by plate stamping, it has two the wing and a base portion is installed, wherein the two installation wings snap in the set draw-in groove in electric connector bottom, and base portion welds fixing with circuit board mutually.Yet, the base portion of fastening assembly described in this design is unsettled being arranged between its two flank section, for this type of for the fastening assembly of thin type sheet material punch forming, the packing of product, transport or installation process in when it is subjected to excessive pressure, very easily produce metaboly, and cause welding effect not good.So, be necessary to provide a kind of fastening assembly that can overcome the compressive deformation problem, reach the shortcoming that occurs failure welding easily to solve its undercapacity.

The purpose of this utility model is to provide a kind of electric connector that is provided with the welding fastening assembly, it can guarantee that its welding fastening assembly has the performance of good opposing external pressure, the phenomenon of being out of shape can not occur, thereby can guarantee that its installation, welding effect are good because of pressurized.

For realizing the purpose of this utility model, the utility model adopts following technical scheme: electric connector comprises insulating body, plurality of conductive terminals and some welding fastening assemblies, wherein the front surface of insulating body forms one and connects header board, which is provided with the socket notch, conducting terminal is fixedly arranged in this insulating body, and the one end extends into the socket notch other end, and then to stretch out insulating body outer and mutually concordant to engage with circuit board with the installed surface of insulating body bottom surface projection.The two sides of insulating body are respectively equipped with the mating part, and it is formed with the installation passage that extends towards the bottom surface along the side, and the position of contiguous this installation channel end is provided with block on the bottom surface; The welding fastening assembly is L-shaped substantially, it comprise dual-side be provided with some projectioies base portion and with the perpendicular holding parts of this base portion, this base portion inserts above-mentioned installation passage and interferes by projection and is fixed on the side of insulating body, holding parts then is positioned at the bottom surface of insulating body and is resisted against on the aforementioned block, thereby can prevent to produce distortion when this holding parts is subjected to excess pressure, and the bottom of holding parts is extended with reference column so that electric connector correctly is positioned circuit board.

Compared with prior art, so that the winding stability of welding fastening assembly is better, and the external force resistance interference performance obviously strengthens the utility model by means of the set block in insulating body bottom surface.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model electric connector and the three-dimensional exploded view that welds fastening assembly.Fig. 2 is the stereogram of the utility model welding fastening assembly.Fig. 3 is the utility model electric connector and the three-dimensional assembly diagram that welds fastening assembly.

See also Fig. 1 and Fig. 3, the utility model electric connector 10 comprises insulating body 12, welding fastening assembly 20 and plurality of conductive terminals 50.Wherein insulating body 12 has front surface 13, end face 15, bottom surface 17 and two sides 18, front surface 13 is formed with one and connects header board 16, connect header board 16 from this and offer a socket notch 14 that is square substantially towards inside, conducting terminal 50 is fixedly arranged on the insulating body 12, the one end extends in the described socket notch 14 and forms docking section in order to connect mutually with the butt joint electric connector, the other end then stretch out insulating body 12 outer and with bottom surface 17 on the installed surface 19 of projection mutually concordant.Be respectively arranged with a mating part 30 near connecting header board 16 positions on the two sides 18 of this insulating body 12, this mating part 30 comprises a pair of rectangular- shaped ledge 32,34 and is formed at installation passage 36 between this two ledge 32,34, ledge 32,34 is shaped in insulating body 12 and its bottom is mutually concordant with the bottom surface 17 of insulating body 12, and ledge 34 is provided with in opposite directions with ledge 32, be provided with two breach in opposite directions in the position that two ledges 32,34 are connected with side 18 and with side 18 formation draw-in grooves 321,341.Whereby, it is slightly T-shaped and perpendicular to the installation passage 36 of bottom surface to form cross section jointly by the ledge 32,34 of mating part 30, draw-in groove 321,341 and side 18, welds fastening assembly 20 in order to accommodate.In addition, the contiguous position projection that passage 36 bottoms are installed is provided with at least one block 38 on insulating body 12 bottom surfaces 17, and on block 38, be formed with at least one step 37, difference in height between this step 37 and block 38 other parts equates with the thickness of welding fastening assembly 20 substantially, and the height of block 38 other parts is mutually concordant with the installed surface 19 of bottom surface 17 posterior protrusion.

Please consult Fig. 2 simultaneously, welding fastening assembly 20 is L-shaped, and it comprises base portion 22 and holding parts 24.Wherein base portion 22 is the lengthwise sheet, and its dual-side is provided with some protruding 23 near 26 positions, top, and when 20 groups of installation passages 36 of going into mating part 30 of welding fastening assembly, these projectioies 23 are interfered in draw-in groove 321,341 in and secure fit is assembled.The bottom extension of base portion 22 is provided with a pair of projection 25, and after these fastening assembly 20 assemblings were finished, the bottom of this projection 25 was mutually concordant with the installed surface 19 of insulating body 12 bottom surfaces 17 rear portion projectioies, and forms a slit between projection 25 and the holding parts 24.Extend a cylindric reference column 27 downward vertically from holding parts 24 centre bottom, electric connector accurately is positioned the precalculated position of circuit board.

Please consult Fig. 3 again, the base portion 22 of welding fastening assembly 20 inserts from lower to upper from installation passage 36 bottoms of the body 12 that insulate and installs in the passage 36, and be fastened in the draw-in groove 321,341 by means of the projection 23 of base portion 22 dual-sides and fix, holding parts 24 then is resisted against on the block 38 of bottom surface 17, and it is contained in step 37 places of this block 38 and makes its base plane mutually concordant with block 38 surfaces and insulating body 12 installed surfaces 19.Whereby, the holding parts 24 that can be fastening assembly 20 provides the support platform of an opposing external pressure, makes this holding parts 24 have enough resistance to compression mechanical strengths, and avoids occurring the compressive deformation phenomenon, guarantees that welding effect is good.

Claims (7)

1. electric connector, be installed on the circuit board, it comprises insulating body, plurality of conductive terminals and welding fastening assembly, wherein insulating body has front surface, side, bottom surface and from the installed surface of bottom surface projection, wherein front surface is provided with the socket notch, the side is provided with the mating part, and this mating part is formed with the installation passage that extends towards the bottom surface along the side; Conducting terminal is fixedly arranged in this insulating body, and the one end extends in the socket notch, and it is outer to engage with circuit board that the other end then stretches out insulating body; The welding fastening assembly is mounted on the aforementioned dielectric body, and it is L-shaped substantially, comprises that the sheet base portion reaches and the perpendicular holding parts of this base portion, and wherein base portion inserts above-mentioned installation passage and is fixed on the side of insulating body; It is characterized in that: the position of contiguous this installation passage bottom is provided with at least one block on the insulating body bottom surface, the holding parts of welding fastening assembly then is positioned at the bottom surface of insulating body and is resisted against on this block, and this holding parts bottom side surface is mutually concordant with the installed surface of insulating body.

2. electric connector as claimed in claim 1 is characterized in that: be formed with at least one step on the described block, the difference in height between this step and the block other parts thickness with the welding fastening assembly substantially is identical.

3. electric connector as claimed in claim 2 is characterized in that: the height of the other parts of this block is mutually concordant with the installed surface of insulating body bottom surface.

4. electric connector as claimed in claim 3 is characterized in that: the bottom side surface of the holding parts of welding fastening assembly is extended with a cylindric reference column downwards.

5. electric connector as claimed in claim 4 is characterized in that: the mating part of described insulating body comprises and is arranged at two ledges on the two sides and is formed at installation passage between this two ledge.

6. electric connector as claimed in claim 5 is characterized in that: this two ledge is to be provided with in opposite directions and this ledge is respectively arranged with a draw-in groove, and forms the slightly T-shaped installation passage of cross section jointly by the side of this draw-in groove and insulating body.

7. electric connector as claimed in claim 6 is characterized in that: the base portion dual-side of welding fastening assembly is provided with some projectioies so that the welding fastening assembly is fastened in above-mentioned draw-in groove.

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