CN104124572B

CN104124572B - FPC precision connector

Info

Publication number: CN104124572B
Application number: CN201310148870.9A
Authority: CN
Inventors: 尹明哲
Original assignee: Suzhou Hexing Electronics Co Ltd
Current assignee: CWB Electronics (Zhejiang) Co., Ltd.
Priority date: 2013-04-26
Filing date: 2013-04-26
Publication date: 2017-02-08
Anticipated expiration: 2033-04-26
Also published as: CN104124572A

Abstract

The invention provides an FPC precision connector which comprises a housing for being connected with a circuit board, two or more terminals which are parallelly fixed to the housing, a cover mounted on the housing and two fixed plates which are parallelly fixed to the housing. A positioning edge above the insertion position of the cover is higher than upper parts of the terminals which fit the positioning edge when the cover is closed. A boss which is higher than the upper surface of the cover is processed on the front surface of the cover, and an extension edge which extends out of the front surface is processed on the upper surface. By high resilience of the FPC precision connector, cover opening and cover closing states can be maintained. Short circuit generated when a metallic foreign matter falls into the FPC connector can be prevented. Connection quality of electric appliances is guaranteed. By the boss and the extension edge structure, it is convenient to open and close the cover during assembling, and height of a product can be effectively reduced.

Description

FPC precision connector

Technical field

The present invention relates to connector technique field is and in particular to a kind of FPC precision connector.

Background technology

FPC is also called flexible print wiring board, is the printed circuit board (PCB) that a kind of flexible material is made, is mainly used in LCD The connection on drive circuit for the display screen；It is widely used in various digital communication products, portable type electronic product, computer peripheral set The standby, field such as measuring instrument, automotive electronics.More connector is had on FPC it has not been convenient to be directly connected to electric equipment products, typically Completed by FPC connector.

FPC connector includes the shell being connected with wiring board, multiple terminals being fixed in shell side by side, and is used for fixing The lid that terminal can be opened and closed.Cover-lifting type and sliding cover type are generally divided into according to the difference of lid connected mode, and the FPC of cover-lifting type The connector again difference according to lid opposing terminal position, be divided into front open type and after lift formula.The welding of FPC connector is usually used Mechanical arm and special adsorption structure, are got up FPC connector absorption by terminal and printed circuit plate weld by lid；Existing FPC connector welding generally carry out under uncapped state, but present FPC connector is solderable in order to realize uncapped state Connect so that product is thick and heavy, have impact on the lightening improvement of electronic product；The fixing force of the link position of printed circuit board (PCB) and terminal Amount is poor, and the loose contact of product is high；Easily skew or absorption problem in FPC connector welding process, have impact on the circuit of electrical equipment Connection effect.And when falling into metallic foreign body in FPC connector, short circuit easily occurs.Expose outer in the terminal of FPC connector The bottom of shell is commonly used to and printed circuit plate weld, and terminal is connected into circuit, but it occur frequently that welding during welding Tin is excessive, causes the circuit between different terminals to be connected, have impact on FPC connector and be integrally connected into effect during circuit.

Present flip-shell FPC connector typically inserts the terminal into into shell, due to present under opening lid state Confining force under uncapped state for the flip-shell FPC connector is weak, once being collided or rocking lid meeting automatic turning, if Transport under the state of renovating and easily damage.So present flip-shell FPC connector generally after manufacture can by lid close into Row SMT, CCD detect, and when flip-shell FPC connector uses, need to raise lid again.The usual volume of FPC connector Less, the needs of uncapping of flip-shell FPC connector are artificial or machine is to complete, and increased production cost, simultaneously flip-shell FPC The multiple folding of connector increased production process, reduces production efficiency.

Content of the invention

For problem above, present invention offer is a kind of to facilitate workman to install, and is difficult short circuit, the strong FPC essence of confining force of uncapping Close connector.

The technical solution adopted for the present invention to solve the technical problems is：This FPC precision connector include for circuit The shell that plate is connected, two or more are fixed in the terminal of described shell side by side, are loaded on the lid on described shell, Two fixed plates being fixed in described shell side by side；Positioning side above the insertion position of described lid is higher than under closing lid state The described terminal upper portion being affixed with it；The front surface of described lid is machined with the boss higher than upper surface, and Surface Machining has thereon Prominent front surface stretch out edge.

Preferably, the contacting points position of described terminal is using stamping forming technique manufacture after first forging, described terminal Contact position with flexible PCB is straight line.

Preferably, the scolding tin position of described terminal is machined with grooving.

Preferably, described cover hinge is in described shell and terminal, pin joint be located at described shell and described terminal it Between assemble after formed framework in.

Preferably, the pin joint section of described lid is cam face, there is two orthogonal flat sides, side and put down Side, the diagonal position on described interface point both sides is designed with the salient point that lower section is stretched out laterally outwardly；It is designed with described shell vertically To true edge, be vertically close to described true edge when the positioning side of described lid is raised；When described lid is raised, upper flat side water Flat, the flat side in side is vertical；Upper flat side on described pin joint when lid is raised described framework elastic conjunction relative with salient point.

The terminal cantilever arm that described and on pin joint upper flat side contacts produces deformation upwards；The cantilever arm of described terminal Downward power is applied to the pin joint of described lid, the positioning side of lid is pressed on the true edge of described shell.This knot Structure improves the confining force of vertical state when lid is raised.

Preferably, being connected using fillet between while described flat flat in side.

The beneficial effects of the present invention is：The higher screen resilience of this FPC precision connector can ensure that described lid flip The degree of accuracy with closing lid state；Positioning side above the insertion position of lid exceeds the design of terminal, can prevent in FPC even Connect and short circuit occurs it is ensured that the quality of connection of electrical equipment when falling into metallic foreign body in device；Described boss is easy to fill along structure with stretching out The described lid of switch of timing, can effectively reduce product height.

Brief description

Fig. 1 is the stereogram of this FPC precision connector.

Fig. 2 is the explosive view of this FPC precision connector.

Fig. 3 is the stereogram that in this FPC precision connector, lid covers rear local.

Fig. 4 is the stereogram under this FPC precision connector flip state.

Fig. 5 is the sectional view of the assembling between shell and terminal.

Fig. 6 is assembling sectional view between shell and lid.

Fig. 7 is the schematic perspective view of terminal.

Fig. 8 is the schematic cross-section of pin joint when lid vertically keeps.

Fig. 9 is the sectional view that lid closes during lid by vertical hold mode.

Figure 10 is the schematic cross-section of pin joint during Fig. 9 position.

Figure 11 is the schematic cross-section of pin joint when lid is shut soon.

Specific embodiment

With reference to embodiment, the present invention is further described：

As shown in embodiment in Fig. 1 and Fig. 2, the FPC precision connector in the present embodiment be a after lift formula FPC connect Device, it includes the shell 1 for being connected with wiring board, and two or more are fixed in the terminal of described shell 1 side by side 2, pin joint 34 is loaded on the lid 3 can start between described shell 1 and terminal 2, and two are fixed in consolidating of described shell 1 side by side Fixed board 4.This FPC precision connector be primarily used to realize flexible printed circuit board to printed circuit board circuit conversion.Described Fixed plate 4 is welded on a printed circuit board, is mainly used to be fixed shell 1；Described terminal 2 is fixed by the way of insertion On described shell 1, project terminal 2 part and the printed circuit plate weld of described shell 1, this FPC precision connector is accessed Circuit, flexible PCB inserts in described shell 1, is connected with printed circuit board by terminal 2, thus realizing turning between circuit Change.

As shown in figure 3, the positioning side 31 above the insertion position of described lid 3 is higher than to be affixed with it under closing lid state Described terminal 2 top；So when this FPC precision connector is using when in electrical equipment, the metal fragment dropping or other are conductive Material etc., is difficult to make generation circuit between two terminals 2 be connected.

As shown in figure 4, the front surface of described lid 3 is machined with the boss 32 higher than upper surface, thereon Surface Machining have prominent Go out the stretching out along 33 of front surface.Described boss 32 and stretch out and increase the front surface of described lid 3 and upper surface along 33 structures Area, is easy to the described lid of switch 3 during workman's assembling.Generally there is one side the front surface of lid 3 and upper surface for mechanical arm Carry out adsorption plane during solder terminal.

In this embodiment, the adsorption plane when front surface of described lid 3 is welded for mechanical arm, this lid 3 Front surface increased described boss 32 and the area of adsorption plane increased, and is easy to absorption when welding.This structure so that The height of this FPC precision connector substantially reduces so that product is more frivolous, facilitates this product to arrange in the installation of electrical equipment inside Cloth.

As shown in fig. 7, the contacting points position of described terminal 2 is using stamping forming technique manufacture after first forging.Described end Son 2 is straight line with the contact position 22 of flexible PCB.The use fillet that stamping forming technique is formed is less, described contact position Put 22 short straight line shape with respect to now commonly used single-contact, its contact area is bigger, and this structure increases holding Power, strengthens the transmission of signal.

As shown in figure 5 and figure 7, the scolding tin position of described terminal 2 is machined with grooving 21.The grooving 21 of described terminal 2 designs Superfluous tin during welding can be accommodated, can effectively prevent the impact that the terminal electrical circuit that scolding tin excessively brings is connected, make this FPC essence Close connector circuit favourable conversions when using.

As shown in figure 5, described lid 3 is articulated with described shell 1 and terminal 2, pin joint 34 be located at described shell 1 with described In the framework 5 being formed after assembling between terminal 2.This FPC precision connector be a after lift the FPC connector of formula, described lid 3 Can be towards the rear folding of terminal 2.

As shown in Figure 5 and Figure 8, pin joint 34 section of described lid 3 be cam face, have two orthogonal on 342 while flat flat in 341, side, the diagonal position on described pin joint 34 both sides is designed with the salient point 343 that lower section is stretched out laterally outwardly； Vertical true edge 11 is designed with described shell 1, described lid 3 is designed with and is close to described true edge 11 when raising Positioning side 31；When described lid 3 is raised, described flat side 341 level, the flat side 342 in described side is vertical；Described hinge when lid is raised Upper flat side 341 on contact 34 described framework 5 elastic conjunction relative with salient point 343.

As shown in Figure 5 and Figure 8, when lid is raised, the cam face in described lid 3 pin joint 34 section makes Impact direction Clearly, terminal 2 cantilever arm that described and on pin joint 34 upper flat side 341 contacts produces deformation upwards；The stretching of described terminal Go out arm and downward power is applied to the pin joint 34 of described lid 3, simultaneously because the position of salient point 343 is so that lid 3 occurs backward Torsion, and shell 1 limits lid 3 in the horizontal direction, does not allow lid 3 rotate backward, and the positioning side 31 of lid 3 is pressed on On the true edge 11 of described shell 1.Simultaneously because the above-below direction of terminal 2 and shell 1 pin joint 34 to lid 3 is limited System, lid 3 nor teetertotter it is ensured that lid 3 with shell 1 in vertical state.When such a construction increases lid 3 and raising The confining force of vertical state.So FPC precision connector can directly keep plumbness transport after terminal insertion shell, and Need not will after its close the cover transport, such FPC precision connector carry out SMT, CCD detection, and with printed circuit board weldering All need not be uncapped when connecing, operation is less, has saved manpower, has improve operating efficiency.

As shown in figure 8, described flat when 341 is flat with side 342 between be connected using fillet 344.So lid is being opened Or more preferably, abrasion is lower for feel when closing.

As shown in Figure 9 and Figure 10, after flexible PCB 6 insertion, overturn lid 3, lid 3 bottom is tightly pinned for wedge angle Flexible PCB 6, the pin joint 34 of lid 3 can prop up the support arm of terminal 2, and lid 3 lid that now stops the rotation can rebound automatically Vertical state.

When being rotated up to the peak of pin joint 34 fillet 344, continue upset lid 3 and reach position as shown in figure 11, Due to described pin joint 34 rotate linear pattern sideline from circular arc type sideline from fillet 344 to the flat side in side 342 excessively, now terminal 2 extruding pin joint 34 power are to closing lid direction, and realization pass lid action moment completes.When uncapping, lid 3 rotation is less than 30 ° Rebound immediately completely closed state, be so conducive to the holding of cover closing state.

Claims

1. a kind of FPC precision connector, it is included for the shell (1) being connected with wiring board, and two or more are simultaneously Row is fixed on the terminal (2) of described shell (1), is loaded on the lid (3) on described shell (1), and two are fixed in side by side outside described The fixed plate (4) of shell (1)；Positioning side (31) above the insertion position of described lid (3) is higher than and its phase under closing lid state Described terminal (2) top of patch；The front surface of described lid (3) is machined with the boss (32) higher than upper surface, and its upper surface adds What work had a prominent front surface stretches out along (33)；Described lid (3) is articulated with described shell (1) and terminal (2), pin joint (34) position In the framework (5) being formed after assembling between described shell (1) and the described terminal (2)；It is characterized in that：Described lid (3) Pin joint (34) section be cam face, have two orthogonal flat when (341), side are flat (342), described pin joint (34) diagonal position on both sides is designed with the salient point (343) that lower section is stretched out laterally outwardly；Be designed with described shell (1) vertically to True edge (11), be vertically close to described true edge (11) when the positioning side (31) of described lid (3) is raised；When lid is raised Upper flat side (341) on described pin joint (34) described framework (5) elastic conjunction relative with salient point (343).

2. FPC precision connector according to claim 1 it is characterised in that：The contacting points position of described terminal (2) adopts Stamping forming technique manufacture after first forging.

3. FPC precision connector according to claim 1 it is characterised in that：The scolding tin position of described terminal (2) is machined with Grooving (21).

4. FPC precision connector according to claim 1 it is characterised in that：Described flat when (341) and side are flat (342) connected using fillet (344) between.