CN209344359U - A kind of FPC/FFC connector - Google Patents

Abstract

The utility model discloses a kind of FPC/FFC connectors, including insulation shell, connection terminal and insulation gland, the side of insulation shell to be provided with for insert port, and the other side of insulation shell has been alternatively arranged a plurality of terminal pins mounting holes；Connection terminal includes several terminal pins, and each terminal pins are inserted in corresponding terminal pins mounting hole, and each terminal pins all have the interconnecting piece for extending to the bottom surface of insulation shell；The both ends of insulation gland are respectively arranged with rotary shaft and are set on insulation shell turnablely by rotary shaft；It further include there are two metal earthing sheet, the both ends of insulation shell offer ground connection socket, and each metal earthing sheet is plugged respectively and is limited in corresponding ground connection socket, and metal earthing sheet all has the contact portion for extending to the bottom surface of insulation shell.The utility model has the following advantages that and effect: being connected by two metal earthing sheets with the signals layer of circuit board, to realize unified ground connection, and then reduces the interference between signal, guarantee the integrality of signal.

Description

A kind of FPC/FFC connector

Technical field

The utility model relates to field of connectors, in particular to a kind of FPC/FFC connector.

Background technique

FPC (Flexible Print Circuit, flexible printed circuit) is a kind of with insulating materials and very thin tin plating Flat copper wire produces new types of data cable made of pressing by high-tech automation equipment, has soft, random bending folding It folds, thickness is thin, small in size, connection is simple, convenient disassembly, easily solves the advantages that being electromagnetically shielded (EMI).Conducting wire can arbitrarily be selected Number and spacing keep on line more convenient, greatly reduce the volume of electronic product, reduce production cost, improve production efficiency, most suitable Together between moving parts and mainboard, pcb board is used between pcb board, in miniaturization electrical equipment as data transmission cable.

FFC (Flexible Flat Cable, flexible flat cable) is with small in size, precision is high, easy to use, light Just the excellent performances such as change, ultrathin type, resistance to complications, are widely used in the electricity of the digital electrical apparatus such as mobile phone, DSC, DVD, security protection camera Connection.

In field of connectors, in particular for the connector of audio frequency apparatus, the requirement to anti-interference ability is higher and higher.It is existing For some FPC/FFC connectors due to the limitation of its structure, anti-interference ability is poor, has multi-signal especially on circuit board When line is distributed, mutual interference will greatly affect the stability of signal transmission, the sound for causing FPC/FFC connector to transmit Frequency distorted signals has seriously affected the normal use of audio frequency apparatus.

Utility model content

The purpose of the utility model is to provide a kind of FPC/FFC connector, pass through two metal earthing sheets and circuit board Signals layer is connected, and to realize unified ground connection, and then reduces the interference between signal, guarantees the integrality of signal.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of FPC/FFC connection Device, comprising: insulation shell, the side of the insulation shell is provided with the insert port for the insertion of FPC or FFC winding displacement, described The other side of insulation shell has been alternatively arranged a plurality of terminal pins mounting holes；Connection terminal, if the connection terminal includes Dry terminal pins, each terminal pins are inserted in corresponding terminal pins mounting hole and extend to insert port, each described Terminal pins all have the interconnecting piece for extending to the bottom surface of insulation shell, each interconnecting piece is welded on circuit board and structure At the signal interaction with circuit board；Insulate gland, and the both ends of the insulation gland are respectively arranged with rotary shaft, the insulation Gland is set on insulation shell turnablely by the rotary shaft at both ends, and FPC or the FFC row for screening described in closing lid Line；It further include there are two metal earthing sheet, the both ends of the insulation shell offer ground connection socket, and each metal connects Ground piece is plugged respectively and is limited in corresponding ground connection socket, and each metal earthing sheet all has and extends to insulation shell Bottom surface contact portion, each contact portion is solderable to be connected on circuit board and constitutes the common ground connection with circuit board.

By using above-mentioned technical proposal, the insert port on insulation shell is inserted into for FPC or FFC winding displacement, and passes through insulation Gland and the masking of FPC or FFC winding displacement, to protect FPC the or FFC winding displacement and terminal pins of insert port.For existing FPC/FFC The problem of connector poor anti jamming capability, there are two metal earthing sheets for the utility model setting, while the both ends of insulation shell are set There is the ground connection socket for the installation of each metal earthing sheet.When the utility model is welded on circuit board, pass through two metallic grounds The contact portion of on piece can realize the common ground connection with circuit board, the area that extension is grounded jointly with circuit board.When on circuit board When electronic component number causes signal wire many and diverse more, the current potential of ground connection is easy the variation with electric current and changes, with connecting terminal Connected electronic equipment, which is affected, will lead to signal level shakiness, and the reduction of anti-noise anti-interference ability easily leads to audio signal Distortion phenomenon, therefore the utility model guaranteed using two metal earthing sheets ground connection area, preferably guarantee ground wire it is complete Whole property.Meanwhile circuit board needs to be adapted to the shell of product in design, therefore size will receive limitation, and lead to the ground of circuit board Line is thin and area is small, and not only interference free performance is poor, and easily leads to circuit board overheat and deform protuberance, therefore the utility model can be directed to Above situation realizes common ground connection to extend the area of ground wire, to reduce interference；Meanwhile two metal earthing sheets may also function as The effect of auxiliary heat dissipation, avoid electric current it is excessive cause on circuit board calorific value increase the phenomenon that.In addition, the utility model passes through Two sheet metals can also be effectively reduced the loss as caused by skin effect, and skin effect refers to the current distribution of conductor Unevenly, current convergence is in " skin " part of conductor, that is to say, that current convergence conductor appearance thin layer, closer to conductor Surface, current density is bigger, and conductor actually electric current is smaller, as a result increases the resistance of conductor, makes its loss power Also increase.For metal earthing sheet in the utility model due to using metal material, surface is metal, can be effectively reduced surface Resistance, the loss that generates when being improved electric current transmission.Meanwhile by preventing from interfering, there is high definition when optimization is for video The performance of connection.

Be further arranged to: the metal earthing sheet described in each includes: the matrix part as bearing structure；With it is described Matrix part one end be connected and to the bending part bent above matrix part, which has elasticity and is made by the elasticity of itself Firmly there is the trend extended up；The matrix part is connected with the contact portion with respect to the other end of bending part, described Contact site in the side of matrix part, and between the contact portion and matrix part be equipped with bend downward transition positioning bending Section.

Pass through the elastic acting force of bending part when matrix part is inserted into ground connection socket by using above-mentioned technical proposal It abuts against bending part with the upper end inner wall for being grounded socket, and is limited in entire metal earthing sheet steadily in ground connection socket, Avoid extraneous shake that metal earthing sheet is made to drop out the case where being grounded socket generation.Determine in addition, being equipped between matrix part and contact portion Position bending segment, can facilitate user's capturing position that metal earthing sheet is inserted into ground connection socket, will positioning bending segment as insertion point, So that entire insert action is more smooth；The setting for positioning bending segment simultaneously is also avoided that anti-inserted situation occurs, provides production The efficiency of assembly.

Be further arranged to: it is convex that the side of the matrix part is equipped with several detents inconsistent with the inner wall of ground connection socket It rises.

By using above-mentioned technical proposal, detent protrusion as further to the limit of matrix part, by detent protrusion with It is grounded the conflict frictional force of the inner wall of socket, it is ensured that the limit that entire metal earthing sheet can consolidate is fixed in ground connection socket, Falling off for metal earthing sheet is avoided, overall stability is provided.

Be further arranged to: the length direction and terminal pins of the interconnecting piece of each terminal pins are inserted into terminal pins The direction of mounting hole is consistent, and each contact portion of metal earthing sheet and the interconnecting piece of each terminal pins are respectively positioned on together One plane.

By using above-mentioned technical proposal, the utility model uses the production of patch type, compared in traditional connector The bottom surface of terminal pins and insulation shell is perpendicular and is inserted in the production method of circuit board, with efficient excellent of production efficiency Point.In process of production, it is not necessary that each terminal pins of connector are manually inserted into the corresponding pad of circuit board and carry out scolding tin The step of, SMT automatic placement machine is directly utilized, is welded after the electronic components such as SMT automatic placement machine welding kesistance, capacitor Connecting connector, very convenient, production is more unitized.

Detailed description of the invention

Fig. 1 is the structural schematic diagram one of embodiment；

Fig. 2 is the structural schematic diagram two of embodiment；

Fig. 3 is the enlarged drawing in the portion A in Fig. 2；

Fig. 4 is the structural schematic diagram three of embodiment；

Fig. 5 is the structural schematic diagram one of metal earthing sheet in embodiment；

Fig. 6 is the structural schematic diagram two of metal earthing sheet in embodiment.

In figure: 1, insulation shell；2, insert port；3, insulate gland；4, terminal pins mounting hole；5, terminal pins；50, even Socket part；6, it is grounded socket；7, metal earthing sheet；71, matrix part；710, detent protrusion；72, bending part；73, contact portion；8, fixed Position bending segment.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

As shown in Figures 1 to 6, a kind of FPC/FFC connector, including insulation shell 1, connection terminal and insulation gland 3.Its In:

The side of insulation shell 1 offers the insert port 2 for the insertion of FPC or FFC winding displacement, the other side has been alternatively arranged plural number A terminal pins mounting hole 4；

Connection terminal includes several terminal pins 5, and each terminal pins 5 are inserted in corresponding terminal pins mounting hole 4 simultaneously It is extended to from insert port 2 from terminal pins mounting hole 4, after FPC or FFC winding displacement is inserted into insert port 2, FPC or FFC winding displacement meeting It is electrically connected with each terminal pins 5 composition, each terminal pins 5 all have the interconnecting piece 50 for extending to the bottom surface of insulation shell 1, respectively connect Socket part 50 is welded on circuit board and constitutes the signal interaction with circuit board, so that the signal of circuit board can pass through terminal pins 5 It is transferred to FPC or FFC winding displacement；

The both ends of insulation gland 3 are respectively arranged with rotary shaft, and insulation gland 3 is arranged turnablely by the rotary shaft at both ends In on insulation shell 1, and FPC or FFC winding displacement of screening in closing lid.

In addition, further including there are two metal earthing sheet 7, the both ends of insulation shell 1 offer ground connection socket 6, each metal Ground strip 7 is plugged respectively and is limited in corresponding ground connection socket 6.Specifically, each metal earthing sheet 7 includes matrix part 71, bending part 72 and contact portion 73.Wherein:

Matrix part 71 is used as bearing structure, and both ends are connected with bending part 72 and contact portion 73 respectively；

Bending part 72 is connected with 71 one end of matrix part and to bending above matrix part 71, and the bending part 72 have elasticity and There is the trend extended up by the elastic acting force of itself；

The other end of the contact portion 73 with matrix part 71 with respect to bending part 72 is connected, and contact portion 73 is located at the side of matrix part 71 Side, and the positioning bending segment 8 for bending downward transition is equipped between contact portion 73 and matrix part 71.

Meanwhile contact portion 73 extends to the bottom surface of insulation shell 1 and is exposed to the bottom surface of insulation shell 1, contact portion 73 can It is welded on circuit board and constitutes common ground connection with the ground wire on circuit board, to reduce the interference between signal, guarantee the complete of signal Whole property.Metal earthing sheet 7 in the utility model is copper sheet, and surface is copper, can be effectively reduced the resistance on surface, be changed The loss generated when kind electric current transmission.

In addition, the side of matrix part 71 is equipped with several detent protrusions 710 inconsistent with the inner wall of ground connection socket 6, pass through The frictional resistance that detent protrusion 710 can increase matrix part 71 and be grounded between socket 6 reinforces fixed effect.

In addition, the length direction of the interconnecting piece 50 of each terminal pins 5 and terminal pins 5 are inserted into terminal pins mounting hole 4 Direction is consistent, and the interconnecting piece 50 of the contact portion 73 of each metal earthing sheet 7 and each terminal pins 5 is respectively positioned on same plane. So that the present embodiment can be welded on circuit board by SMT automatic placement machine, production efficiency is improved.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (4)

1. a kind of FPC/FFC connector, comprising:

Insulation shell (1), the side of the insulation shell (1) are provided with the insert port (2) for the insertion of FPC or FFC winding displacement, institute The other side for the insulation shell (1) stated has been alternatively arranged a plurality of terminal pins mounting holes (4)；

Connection terminal, the connection terminal include several terminal pins (5), and each terminal pins (5) are inserted in pair The terminal pins mounting hole (4) answered simultaneously extends to insert port (2), and each terminal pins (5), which all have, extends to insulation shell The interconnecting piece (50) of the bottom surface of body (1), each interconnecting piece (50) are welded on circuit board and constitute the signal with circuit board Interaction；

It insulate gland (3), the both ends of the insulation gland (3) are respectively arranged with rotary shaft, and the insulation gland (3) passes through The rotary shaft at both ends is set to turnablely on insulation shell (1), and FPC the or FFC winding displacement of screening in closing lid；It is special Sign is:

It further include there are two metal earthing sheet (7), the both ends of the insulation shell (1) offer ground connection socket (6), each institute The metal earthing sheet (7) stated is plugged respectively and is limited in corresponding ground connection socket (6), and each metal earthing sheet (7) The contact portion (73) for extending to the bottom surface of insulation shell (1) is all had, each contact portion (73) is solderable to be connected on circuit board And the common ground connection of composition and circuit board.

2. a kind of FPC/FFC connector according to claim 1, it is characterised in that: the metal earthing sheet described in each (7) include:

Matrix part (71) as bearing structure；

It is connected with described matrix part (71) one end and to the bending part (72) bent above matrix part (71), the bending part (72) There is the trend extended up with elasticity and by the elastic acting force of itself；

The matrix part (71) is connected with the contact portion (73), the contact portion with respect to the other end of bending part (72) (73) it is located at the side of matrix part (71), and is equipped between the contact portion (73) and matrix part (71) and bends downward transition It positions bending segment (8).

3. a kind of FPC/FFC connector according to claim 2, it is characterised in that: the side of the matrix part (71) It is raised (710) equipped with several detents inconsistent with the inner wall of ground connection socket (6).

4. a kind of FPC/FFC connector according to claim 1, it is characterised in that: the company of each terminal pins (5) The length direction of socket part (50) is consistent with terminal pins (5) the insertion direction of terminal pins mounting hole (4), and each metal connects The contact portion (73) of ground piece (7) and the interconnecting piece (50) of each terminal pins (5) are respectively positioned on same plane.