CN202133755U

CN202133755U - FPC test wire

Info

Publication number: CN202133755U
Application number: CN201120133269U
Authority: CN
Inventors: 张洋; 李博; 汪翠兰
Original assignee: Hisense Mobile Communications Technology Co Ltd
Current assignee: Hisense Mobile Communications Technology Co Ltd
Priority date: 2011-04-29
Filing date: 2011-04-29
Publication date: 2012-02-01
Anticipated expiration: 2021-04-29

Abstract

The utility model discloses an FPC (Flexible Printed Circuit) test wire comprising a plurality of mainboard sockets which are used for correspondingly connecting with connectors on a PCBA (Printed Circuit Board Assembly) of electronic equipment and at least one component socket which is used for correspondingly connecting with the connector on a component to be assembled, wherein the plurality of mainboard sockets are correspondingly connected with pins having the same interface definition in the component socket after connected in parallel. According to the FPC test wire of the utility model, by arranging a plurality of connector sockets which are connected in parallel, when one socket is wearing seriously and can not be used, the next socket can be used as a test connector, thereby prolonging service life of the FPC test wire, reducing human input for tool maintenance, reducing pause states of a test station in the process of tool maintenance, and raising efficiency of a whole machine test. In addition, with the prolongation of the service life of the single FPC test wire, purchase cost of the FPC test wire can be greatly reduced, thus single machine cost of the PCBA can be reduced, and the manufactured product may also have a price advantage.

Description

A kind of FPC p-wire

Technical field

The utility model belongs to the circuit board testing technical field, specifically, relates to a kind of a kind of subconnector spare of using when being used to simulate the complete machine functional test.

Background technology

In the mobile phone production procedure; Need be with mobile phone PCBA (Pinter Circuit Board Assembly; The i.e. circuit board of the various electron devices of fit on) behind each item radio frequency and functional parameter test passes, can it be changed over to the assembling link of assembling parts.At this moment; Because the parts to be assembled of mobile phone are not installed on the PCBA; Therefore the complete machine functional test of PCBA just needs to make the functional test frock; Subconnector spares such as probe through anchor clamps of the PCBA of mobile phone, FPC p-wire with after parts to be assembled are connected, could be begun PCBA is simulated the complete machine functional test.

FPC is the abbreviation of Flexible Printed Circuit, i.e. flexible printed circuit board.Operated by rotary motion has the mother 11 of public affairs 12 and board to board connectors of a board to board connector on existing FPC p-wire 10, and is as shown in Figure 1.When the PCBA 13 that uses 10 pairs of mobile phones of FPC p-wire carried out functional test, one side need be connected female of the board to board connector on the public affairs of FPC p-wire 10 12 and the mobile phone PCBA 13 to slotting, as shown in Figure 2; On the other hand, need the public head of the board to board connector on the mother of FPC p-wire 10 11 and the parts 14 to be assembled (first-class such as shooting) be connected inserting, and then realization PCBA 13 is communicated with the circuit of parts 14 to be assembled.Board to board connector to inserting in the process, can produce wearing and tearing to a certain degree to the coat of metal of connector, and wearing and tearing in various degree also can appear in its base material, therefore, connector can corresponding certain serviceable life in the plug use.When board to board connector may wear to the correctness of the stable or test result that influences its test, this FPC p-wire just can not continue to have used again.

When the production quantity of FPC p-wire is between 20 ~ 1000; Processing producer is from the consideration of cost of manufacture; The processing technology of FPC p-wire generally all is to adopt the flow process of sample processing, and producer can not drop into the processing technology and the equipment making of volume production, and the quotation of single sample is high than batch making; Therefore, the unit price that causes the FPC p-wire is also than higher.The FPC p-wire mainly is used in the test process of PCBA, when quantity on order between 10K ~ 1000K the time, the FPC p-wire quantity that is used to test also is in the interval of sample processing basically according to the production statistical conditions, it is higher relatively therefore to make price.

Summary of the invention

The utility model provides a kind of FPC p-wire of brand new,, reach the purpose of design of the buying expenses that reduces the FPC p-wire through prolonging the serviceable life of FPC p-wire.

For solving the problems of the technologies described above, the utility model adopts following technical scheme to be achieved:

A kind of FPC p-wire; The mainboard socket that comprises the corresponding grafting of connector on a plurality of PCBA that are used for electronic equipment with at least one be used for parts to be assembled on the parts socket of the corresponding grafting of connector; After the parallel connection of a plurality of mainboard socket, again with the parts socket in the identical corresponding connection of each pin of interface definition.

Wherein, said parts socket preferably is provided with one; When described parts socket includes when a plurality of, a plurality of parts sockets are in parallel.

Further; Described a plurality of mainboard socket forms one group to be separated with described parts socket and to be laid on the FPC p-wire, and in this group mainboard socket, a plurality of mainboard socket adjacent spaces are laid; So that after certain mainboard socket heavy wear, conveniently the FPC p-wire is pruned.

Preferably, said mainboard socket is laid in the front of FPC p-wire, and said parts socket is laid in the back side of FPC p-wire.

Further, on the opposing face of each the mainboard socket laid on the said FPC p-wire and parts socket, be provided with a back-up block, to make things convenient for the grafting of socket.

Preferably, said back-up block is steel disc or epoxy plate etc.

Profile for said FPC p-wire can be designed to difformity, such as strip, L shaped or stepped appearance etc.When said FPC p-wire was L-shaped, said a plurality of mainboard socket preferred cloth were located at the long limit of L shaped FPC p-wire, and the parts socket is laid in the minor face of L shaped FPC p-wire.When said FPC p-wire is stepped appearance, preferably lay a described mainboard socket or parts socket at one of them flex point place on each rank.

Further again, the printed wire of said FPC p-wire is laid on 2 layers the flexible PCB at least, and trace width is value in the scope of [0.1mm, 0.2mm] preferably.

Further, said mainboard socket is public head or female head of connector, its quantity is preferably between 3 to 6; Accordingly, said parts socket is the female head or the public head of connector, preferably is provided with one.

Compared with prior art; The advantage and the good effect of the utility model are: the FPC p-wire of the utility model is through laying the connector socket of a plurality of parallel connections; When a socket serious wear can't be used; Can use next socket as test connector, thereby can prolong the serviceable life of FPC p-wire greatly.Owing to the lifting in serviceable life of FPC p-wire, can reduce the human input that frock is safeguarded on the one hand; Can reduce the situation that test station in the frock maintenance process is in halted state on the other hand, thereby reduce influence system test efficient.In addition, this FPC p-wire also because of the wall scroll prolongation in serviceable life, makes the buying expenses of FPC p-wire significantly reduce, thereby has reduced the unit cost of PCBA, makes the product of producing have more price advantage.

After the detailed description in conjunction with advantages the utility model embodiment, other characteristics of the utility model and advantage will become clearer.

Description of drawings

Fig. 1 is the structural representation of existing FPC p-wire;

Fig. 2 is to use the connected mode synoptic diagram of existing FPC p-wire;

Fig. 3 is the Facad structure synoptic diagram of first kind of embodiment of the FPC p-wire that proposes of the utility model;

Fig. 4 is the structure synoptic diagram of FPC p-wire shown in Figure 3;

Fig. 5 is the Facad structure synoptic diagram of second kind of embodiment of the FPC p-wire that proposes of the utility model;

Fig. 6 is the structure synoptic diagram of FPC p-wire shown in Figure 5;

Fig. 7 is the Facad structure synoptic diagram of the third embodiment of the FPC p-wire that proposes of the utility model;

Fig. 8 is the structure synoptic diagram of FPC p-wire shown in Figure 7;

Fig. 9 is to use the connected mode synoptic diagram of FPC p-wire shown in Figure 3;

Figure 10 is to use the connected mode synoptic diagram of FPC p-wire shown in Figure 5;

Figure 11 is to use the connected mode synoptic diagram of FPC p-wire shown in Figure 7;

Figure 12 is the circuit theory diagrams of a kind of embodiment of the FPC p-wire that proposes of the utility model;

Figure 13 adopts FPC p-wire shown in Figure 3 to prune the synoptic diagram of a kind of embodiment of use in actual use;

Figure 14 adopts FPC p-wire shown in Figure 3 to prune the synoptic diagram of other a kind of embodiment of use in actual use.

Embodiment

Describe in detail below in conjunction with the embodiment of accompanying drawing the utility model.

Embodiment one; Present embodiment is in order to prolong the serviceable life of FPC p-wire; Be provided with simultaneously on the single FPC p-wire a plurality of be used for PCBA on the connector socket (below be called the mainboard socket) of the corresponding grafting of connector socket, and at least one be used for parts to be assembled on the connector socket (below be called the parts socket) of the corresponding grafting of connector socket.A plurality of mainboard sockets are in parallel, then with the parts socket on the identical pin of interface definition connect one to one, can realize the signal communication of mainboard socket and parts socket thus.

Said mainboard socket and parts socket can carry out the concrete design of FPC p-wire according to the connector socket type selecting socket type adaptive with it on PCBA and the parts to be assembled respectively.For example: if the AUI on the PCBA is female head, then the mainboard socket should be selected the public head of connector; Otherwise if the connector on the PCBA is public head, then the mainboard socket should be female head.Same, if the AUI of parts to be assembled is public head, then the parts socket should be selected female head; Otherwise when if the connector of parts to be assembled be mother, then the parts socket should be public head.Present embodiment is that example specifies with the connector that is used to connect camera on the mobile phone PCBA.Suppose that the camera attaching device on the mobile phone PCBA is female head, the connector of camera is public head, then when design FPC p-wire, the public head of a plurality of connectors and female head of at least one connector should be set simultaneously on p-wire.Consider that the FPC p-wire is in actual use in case after pegging graft well with camera; Generally do not need again camera to be pulled up; The FPC p-wire of camera of only needing to have pegged graft is plugged on the different mobile PCBA, the PCBA of different mobile phones is carried out functional test get final product.Therefore, be not easy to wear and tear, can only on the FPC p-wire, be provided with one, to reduce the cost of FPC p-wire as female head of parts socket; Then owing to need often plug, be prone to cause wearing and tearing as the public head of mainboard socket, therefore need be provided with a plurality of simultaneously.

Present embodiment is that example describes so that 3 and one mothers of three public affairs 1 to be set on FPC p-wire 2 simultaneously, like Fig. 3, shown in Figure 4.Three public affairs 3 are formed one group opened laying in 1 minute, follow-up public 3 is pruned with convenient with female.Such as can be with female 1 end that is arranged on FPC p-wire 2, remainder be laid described three public affairs 3, makes three public affairs 3 adjacent and be provided with at interval.Described three public affairs 3 are in parallel, and then are connected with female 1, and are shown in figure 12, be about to public 3 with female 1 on each identical function pin correspondence of interface definition be connected, with the correct transmission of assurance signal between mobile phone PCBA and camera.

Certainly, also can on FPC p-wire 2, lay a plurality of simultaneously as the mother of unit interface 1 according to the needs that reality is used.If need lay a plurality of mothers simultaneously 1 o'clock, then can copy among Figure 12 public 3 connected mode with a plurality of mothers 1 parallel connection after, again with public affairs 3 corresponding connections of parallel connection, be about to that each identical function pin of interface definition is connected correspondingly on public affairs 3 and the mother 1.

The minimum feature and the distance between centers of tracks of the inside cabling of said FPC p-wire 2 can be set to 0.1mm, wherein, and power lead and special power supply is arranged or the cabling of impedance requirement can be widened to 0.2mm.If public 3 and female 1 is arranged on the same one side of FPC p-wire, and the profile width of FPC p-wire is enough, and one deck flexible PCB can only be set.But seeing that the space on the test fixture is less, and the FPC p-wire is generally narrow, therefore preferably circuit is printed on more than or equal on 2 layers the flexible PCB, to make things convenient for the topological design of the inner cabling of FPC p-wire.

In the present embodiment, described public affairs 3 can be laid on the same one side of FPC p-wire 2 with female 1; Also can lay respectively on the branch two sides, as shown in Figure 3 such as can be with female 1 front that is laid in FPC p-wire 2, and public 3 back side that is laid in FPC p-wire 2 is as shown in Figure 4.The plug of connector is for ease also preferably installed public 3 reverse side with female 1 position and is added back-up block 4 on FPC p-wire 2, like Fig. 3, shown in Figure 4, each public 3 with female 1 corresponding back-up block 4, to increase the intensity of connector.In the present embodiment, said back-up block 4 can select for use designs such as steel plate or FR4 epoxy plate to realize, present embodiment is not limited in above giving an example.

In actual use; At first the mother on the FPC p-wire 21 is pegged graft with camera 7; With being positioned on the FPC p-wire 2 on the female head of connector that outermost public affairs 3 are plugged into mobile phone PCBA, as shown in Figure 9 then, begin this PCBA is simulated the functional test of complete machine.If be positioned at outermost public affairs 3 serious wear; When influencing stability and the correctness of test result; Can should prune away together with the one section FPC p-wire that adheres to above that by the public affairs head with instruments such as cutting nippers, scissors; Make next one public affairs (promptly originally being positioned at the public head in centre position) become the upward continuation use of PCBA that test connector is plugged into mobile phone, referring to shown in Figure 13.When if situation that heavy wear can't use also appears in this public affairs head after long-time the use; Can further it be pruned away; Use a remaining public head as test connector; Be plugged into and continue on the connector of PCBA to use, referring to shown in Figure 14, thus can be so that obtain 3 times lifting the serviceable life of FPC p-wire 2.If the mainboard socket of laying on the p-wire then can be so that be able to more times lifting the serviceable life of FPC p-wire more than three.It should be noted that: the electrical property characteristics that number and tested parts are set of board to board connector have certain relation; Because the data of transmitting in the FPC p-wire often all are the higher digital signals of frequency; Under factory's complex electromagnetic environments (electromagnetic interference (EMI) that electromagnetic interference (EMI), workshop other products and the other products test instrumentation that produces when the electromagnetic interference (EMI) that the instrument that is used to test produces, PCBA energising test itself produces); For making the FPC p-wire have reliable antijamming capability, the mainboard socket quantity of board to board connector is the best with 3 ~ 6.In actual application, only need to do the debugging checking slightly, can determine the optimum of connector and lay quantity.

The laying mode of the general shape of said FPC p-wire, length, each connector need satisfy on test fixture rationally puts, so concrete design can be different.L shaped such as can the FPC p-wire being designed to, like Fig. 5, shown in Figure 6, parts socket (is example with female 1) is arranged on the minor face of L shaped FPC p-wire 5, peg graft with parts to be assembled (is example with camera 7) with convenient, shown in figure 10; Mainboard socket (is example with public 3) is arranged the long limit that is laid in L shaped FPC p-wire 5, and the mobile phone PCBA that is used to peg graft is conveniently to build complete test macro.Certainly, also can the FPC p-wire be designed to stepped appearance, like Fig. 7, shown in Figure 8, be provided with at one of them flex point place on each rank described public affairs 3 with female 1.Wherein, female 1 a wherein end that is arranged on stepped appearance FPC p-wire 6 fronts, as shown in Figure 7, with its position opposing backside surface back-up block 4 is installed; Public 3 one of them flex point place that is separately positioned on other each rank at stepped appearance FPC p-wire 6 back sides, as shown in Figure 8, and with the front of each public p-wire that 3 positions are relative 6 back-up block 4 of corresponding installation respectively.The annexation of said FPC p-wire 6 in actual application is referring to shown in Figure 11.

Certainly, the profile of FPC p-wire can also be designed to other forms according to the concrete needs of test macro, and present embodiment is not limited in above giving an example.Said public affairs 3 also can be carried out adaptability according to the particular type of the connector that is provided with on PCBA and the parts to be assembled and select with female 1.

The FPC p-wire of present embodiment is applied to mobile phone PCBA or adopts in the functional test of electronic equipment PCBA of similar connected mode; Serve as the subconnector spare between PCBA and the parts to be assembled; PCBA is simulated the functional test of complete machine; Thereby can reduce production cost and the frock maintenance cost of PCBA, and then reach the purpose of design that reduces electronic product unit cost.

Certainly; The above only is a kind of preferred implementation of the utility model, for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. FPC p-wire; It is characterized in that: the mainboard socket that comprises the corresponding grafting of connector on a plurality of PCBA that are used for electronic equipment with at least one be used for parts to be assembled on the parts socket of the corresponding grafting of connector; After the parallel connection of a plurality of mainboard socket, again with the parts socket in the identical corresponding connection of each pin of interface definition.

2. FPC p-wire according to claim 1 is characterized in that: when described parts socket includes when a plurality of, a plurality of parts sockets are in parallel.

3. FPC p-wire according to claim 1 and 2 is characterized in that: described a plurality of mainboard sockets form one group to be separated with described parts socket and to be laid on the FPC p-wire, and in this group mainboard socket, a plurality of mainboard socket adjacent spaces are laid.

4. FPC p-wire according to claim 3 is characterized in that: said mainboard socket is laid in the front of FPC p-wire, and said parts socket is laid in the back side of FPC p-wire.

5. FPC p-wire according to claim 3 is characterized in that: on the opposing face of each the mainboard socket laid on the said FPC p-wire and parts socket, be provided with a back-up block.

6. FPC p-wire according to claim 5 is characterized in that: said back-up block is steel disc or epoxy plate.

7. FPC p-wire according to claim 3 is characterized in that: said FPC p-wire is L-shaped, and a plurality of mainboard sockets are laid in the long limit of L shaped FPC p-wire, and the parts socket is laid in the minor face of L shaped FPC p-wire.

8. FPC p-wire according to claim 3 is characterized in that: said FPC p-wire is stepped appearance, lays a mainboard socket or parts socket at one of them flex point place on each rank.

9. FPC p-wire according to claim 3 is characterized in that: the printed wire of said FPC p-wire is laid on 2 layers the flexible PCB at least, and trace width is value in the scope of [0.1mm, 0.2mm].

10. FPC p-wire according to claim 3 is characterized in that: said mainboard socket is public head or female head of connector, and its quantity is between 3 to 6; Said parts socket is the female head or the public head of connector.