CN210723597U

CN210723597U - Compatible flat cable, plug assembly and electronic equipment

Info

Publication number: CN210723597U
Application number: CN201921316821.0U
Authority: CN
Inventors: 马盼盼; 李鑫科; 王雷; 叶倩
Original assignee: Zhejiang Dahua Technology Co Ltd
Current assignee: Zhejiang Dahua Technology Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-06-09
Anticipated expiration: 2029-08-14

Abstract

The application relates to a compatible flat cable, a plug assembly and electronic equipment, wherein the compatible flat cable comprises a coaxial flat cable and FFC plugs arranged at two ends of the coaxial flat cable, and leads in the coaxial flat cable correspond to pins inside the FFC plugs one by one so that the compatible flat cable is compatible with an FFC connector or an FPC connector. The coaxial flat cable connector is based on the coaxial flat cable, the coaxial cable connectors at the two ends of the coaxial flat cable are replaced by the FFC connectors, and the wires in the coaxial flat cable are in one-to-one correspondence with the pins inside the FFC connectors, so that the coaxial flat cable can be connected with the FFC connectors or the FPC connectors through the board plug, and the compatible function is realized. When the equipment uses the FFC winding displacement of low cost, if the electromagnetic compatibility authentication fails, need be changed to coaxial winding displacement 210 when satisfying better electromagnetic compatibility performance requirement, through with the compatible winding displacement that this application provided replace the FFC winding displacement can, need not drop the FFC connector replacement on the circuit board again and be the coaxial connector to change the board and open the mould expense to saved.

Description

Compatible flat cable, plug assembly and electronic equipment

Technical Field

The application relates to the technical field of cables, in particular to a compatible flat cable, a plug assembly and electronic equipment.

Background

The Flexible Flat Cable (FFC) and the coaxial Flat Cable respectively use different connectors to complete board plugging, and cannot be used compatibly. The FFC bus has poor electromagnetic compatibility (EMC) characteristics, but is low in cost. The coaxial cable has better EMC characteristics but higher cost. When the equipment uses the FFC with low cost, if EMC authentication fails, the EMC equipment needs to be replaced by a coaxial cable to meet better EMC performance requirements. Since the FFC bus cable and the coaxial bus cable are different in connector, it is necessary to change the FFC connector to the coaxial connector by changing the plate, thereby further increasing the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The application provides a compatible winding displacement, connects and inserts subassembly and electronic equipment, can realize the compatibility of coaxial winding displacement and FFC connector or FPC connector, has reduced manufacturing cost.

A compatible flat cable comprises a coaxial flat cable and FFC plugs arranged at two ends of the coaxial flat cable, wherein leads in the coaxial flat cable correspond to pins inside the FFC plugs or FPC plugs one by one, so that the compatible flat cable is compatible with FFC connectors or FPC connectors.

In one embodiment, the coaxial flat cable comprises an outer insulating layer, a metal shielding layer, an inner insulating layer and an inner metal conductor which are sequentially stacked from outside to inside; the coaxial flat cable comprises a grounding wire and a signal wire;

the inner layer metal conductor of the grounding wire and the inner layer metal conductor of the signal wire are in one-to-one correspondence with the pins inside the FFC plug, so that the compatible flat cable assembly is compatible with the FFC connector or the FPC connector.

In one embodiment, the inner metal conductor of the ground line is connected to the metal shielding layer of the signal line, so that the metal shielding layer of the signal line is grounded.

In one embodiment, the inner metal conductor is exposed by removing the outer insulating layer, the metal shielding layer and the inner insulating layer at two ends of the grounding wire; the metal shielding layer is exposed by removing the external insulating layers at the two ends of the signal line; and electrically connecting the inner metal conductor of the grounding wire in the same end with the metal shielding layer of the signal wire.

In one embodiment, the coaxial cable assembly further includes a conductive element, and the inner metal conductor of the ground line and the metal shielding layer of the signal line are electrically connected through the conductive element.

In one embodiment, the conductive element is a metal sheet or a metal wire.

A connector assembly, comprising: the FFC plug or the FPC plug is connected with the connector in an inserting mode.

In one embodiment, the connector is an FFC connector or an FPC connector.

In one embodiment, the connector comprises an insulating support, an insulating flip cover and a pin header, and the FFC plug or the FPC plug is connected with the pin header through the pressure of the insulating support and the insulating flip cover, so as to realize the plugging of the FFC plug or the FPC plug and the connector.

An electronic device comprises the connector assembly.

The compatible winding displacement, connect and insert subassembly and electronic equipment that this application embodiment provided, compatible winding displacement includes coaxial winding displacement, sets up FFC plug or FPC plug at coaxial winding displacement both ends, wire in the coaxial winding displacement with the inside pin one-to-one of FFC plug, so that compatible winding displacement is compatible with FFC connector or FPC connector. The coaxial flat cable connector is based on the coaxial flat cable, the coaxial connectors at the two ends of the coaxial flat cable are replaced by the FFC connector or the FPC connector, and the leads in the coaxial flat cable are in one-to-one correspondence with the pins in the FFC connector or the FPC connector, so that the coaxial flat cable can be connected with the FFC connector or the FPC connector through a board, and the compatible function is realized.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an FFC bus bar according to an embodiment;

fig. 2 is a schematic structural view of a coaxial cable according to an embodiment;

fig. 3 is a schematic structural diagram of a compliant cable according to an embodiment;

fig. 4 is a schematic structural diagram of a coaxial line in a compatible flat cable according to an embodiment;

fig. 5 is a schematic structural diagram of a compliant cable according to another embodiment;

FIG. 6a is one of the schematic diagrams of a connector provided in one embodiment;

FIG. 6b is a second schematic view of a connector provided in one embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and in the accompanying drawings, preferred embodiments of the present application are set forth. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 is a schematic structural diagram of an FFC bus, and the FFC bus 110 is a flexible flat cable, and is suitable for data transmission between a mobile component and a main board, between a PCB and a PCB, and in a miniaturized device. The FFC flex cable 110 exposes the inner wires at the FFC plug 120 portion and is wrapped with insulation except for the FFC plug 120. The FFC connector 120 is placed under the flip cover of the FFC connector, and the FFC flat cable 110 can be connected with the FFC connector by closing the flip cover. Since the FFC flex cable 110 has only one more reference ground than the FPC flex cable, the FFC connector and the FPC connector are virtually identical. The embodiments of the present application will be described with reference to FFC connectors and FFC plugs as examples. It is understood that the FFC connectors can be replaced with FPC connectors, and the FFC connectors can be replaced with FPC connectors.

Fig. 2 is a schematic structural view of a coaxial cable, and the coaxial cable 210 is formed by assembling a plurality of coaxial cables with the same material dimension. Each coaxial line is a guide system formed by two coaxial cylindrical conductors, and a broadband microwave transmission line with an insulating medium is filled between an inner conductor and an outer conductor.

The coaxial cable 210 has coaxial plugs 220 at its two ends, and in order to ensure the electromagnetic compatibility of the coaxial cable 210, the coaxial plugs 220 at the two ends of the coaxial cable 210 may be made of metal and are in good lap joint with the shielding layer of the coaxial cable. The coaxial cable 210 can be connected to the connector by directly inserting the coaxial plug 220 into the metal slot of the coaxial cable 210 connector.

Fig. 3 is a schematic structural diagram of a compatible flat cable according to an embodiment of the present application. As shown in fig. 3, the compliant flat cable 310 includes a coaxial flat cable 210, and an FFC plug 120 or an FPC plug disposed at two ends of the coaxial flat cable 210, and the wires in the coaxial flat cable 210 correspond to the pins inside the FFC plug 120 one by one, so that the compliant flat cable 310 is compliant with the FFC connector 130 or the FPC connector.

The present embodiment is based on the coaxial cable 210, and the plugs at both ends of the coaxial cable 210 are optimally designed. Specifically, the coaxial connectors 210 at the two ends of the coaxial flat cable 210 are replaced by the FFC connector 120 or the FPC connector, and the wires in the coaxial flat cable 210 are ensured to be in one-to-one correspondence with the pins inside the FFC connector 120 and to be directly connected and conducted, so that the compatible flat cable is compatible with the FFC connector 130 or the FPC connector. The compliant cable 310 can be connected to the FFC connector 130 and also to the FPC connector.

In one embodiment, as shown in fig. 4, each coaxial cable 210 includes an outer insulating layer 211, a metal shielding layer 212, an inner insulating layer 213 and an inner metal conductor 214, which are stacked in sequence from outside to inside.

In the coaxial cable 210, the innermost conductor of the coaxial cable is electrically connected to ground, which is called a ground line. There are coaxial lines, the innermost wires of which are used to transmit signals, and the coaxial lines are called signal lines. The inner layer metal conductors of the ground wires and the inner layer metal conductors of the signal wires are in one-to-one correspondence with the pins inside the FFC plug 120 and are directly conducted, so that the compatible flat cable assembly 310 is compatible with the FFC connector 130 or the FPC connector.

In one embodiment, the inner metal conductor is exposed by removing the outer insulating layer, the metal shielding layer and the inner insulating layer at two ends of the grounding wire; the metal shielding layer is exposed by removing the external insulating layers at the two ends of the signal line; and electrically connecting the inner metal conductor of the grounding wire in the same end with the metal shielding layer of the signal wire. As shown in fig. 5, at the junction of the coaxial cable 210 and the FFC plug 120, the ground line in the coaxial cable 210 is removed with the outer three layers, i.e., the outer insulating layer, the metal shield layer, and the inner insulating layer, exposing the innermost metal conductor. And removing the metal conductor on the outermost layer of the signal wire to expose the metal shielding layer. The inner metal conductor of the ground wire and the metal shielding layer of the signal wire may be electrically connected through a conductive element, so that the metal shielding layer of the signal wire is grounded, and good electromagnetic compatibility of the coaxial cable 210 is ensured.

In this embodiment, the grounding line and the signal line in the coaxial flat cable 210 are distinguished, and different processes are performed to achieve good grounding of the shielding layer, so as to ensure the electromagnetic compatibility of the compatible flat cable.

In one embodiment, the conductive element may be a metal sheet or a metal wire. Fig. 5 shows that the inner metal conductor of the ground wire and the metal shielding layer of the signal wire are overlapped in a metal sheet welding mode, and good grounding of the metal shielding layer of the signal wire is achieved.

The compatible flat cable 310 provided by this embodiment includes a coaxial flat cable 210 and FFC plugs 120 disposed at two ends of the coaxial flat cable 210, and the wires in the coaxial flat cable 210 correspond to the pins inside the FFC plugs 120 one by one, so that the compatible flat cable is compatible with the FFC connector 130 or the FPC connector. According to the application, the coaxial cable 210 is taken as a basis, the coaxial connectors at the two ends of the coaxial cable 210 are replaced by the FFC connectors 120, the leads in the coaxial cable 210 correspond to the pins in the FFC connectors 120 one by one, and all the innermost metal conductors of the compatible cable 310 are in contact with the terminals of the FFC connectors 130 for conduction, so that the compatible cable can be connected with the FFC connectors 130 or FPC connectors to complete board plugging, and the compatible function is realized.

The present application further provides a connector assembly 410, the connector assembly 410 comprising: the connector 411, the compatible flat cable 310, the FFC plug 120 and the connector 411 are connected.

In one embodiment, the connector 411 is an FFC connector or an FPC connector. Since the FFC flex cable 110 has only one more reference ground than the FPC flex cable, the FFC connector and the FPC connector are virtually identical. The compatible flat cable can be suitable for both FFC connectors and FPC connectors. When the device uses the low-cost FFC flat cable 110, if the electromagnetic compatibility authentication fails, the coaxial flat cable 210 needs to be replaced to meet the requirement of better electromagnetic compatibility, the FFC flat cable 110 is replaced by the compatible flat cable provided by the application, and the FFC connector 130 on the circuit board does not need to be replaced by a coaxial connector, so that the cost for changing the board and opening the die is saved.

The metal shield of the coaxial cable 210 is also well lapped with the ground pin of the FFC connector or the FPC connector to ensure good electromagnetic compatibility.

FIG. 6a is a schematic view of one embodiment of a connector, and FIG. 6b is a schematic view of another embodiment of a connector. As shown in fig. 6a and 6b, the FFC connector 130 includes an insulating support 131, an insulating flap 132 and a pin arrangement pin 133, and the FFC plug 120 is connected with the pin arrangement pin 133 by the pressure of the insulating support 131 and the insulating flap 132, so as to realize the connection between the FFC plug 120 and the connector. When the compatible flat cable 310 is put under the flip cover, the flip back cover is closed, and the compatible flat cable 310 is fixed by the pressure of the insulating bracket 131 and the insulating flip cover 132.

The application also provides electronic equipment, and the electronic equipment comprises the plug-in assembly.

The electronic equipment comprises a main board and a PCB, wherein one end of the plug-in assembly is connected with the main board, and the other end of the plug-in assembly is connected with the PCB so as to realize the connection of the main board and the PCB.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A compatible flat cable is characterized by comprising a coaxial flat cable and FFC (flexible flat cable) plugs or FPC (flexible printed circuit) plugs arranged at two ends of the coaxial flat cable, wherein leads in the coaxial flat cable correspond to pins in the FFC plugs or the FPC plugs one by one, so that the compatible flat cable is compatible with FFC connectors or FPC connectors.

2. The compatible flat cable according to claim 1, wherein the coaxial flat cable comprises an outer insulating layer, a metal shielding layer, an inner insulating layer and an inner metal conductor which are sequentially stacked from outside to inside; the coaxial flat cable comprises a grounding wire and a signal wire;

the inner layer metal conductor of the grounding wire and the inner layer metal conductor of the signal wire are in one-to-one correspondence with the pins inside the FFC plug or the FPC plug, so that the compatible flat cable assembly is compatible with the FFC connector or the FPC connector.

3. The compatible flat cable of claim 2, wherein the inner metal conductor of the ground line is connected to the metal shield layer of the signal line to ground the metal shield layer of the signal line.

4. The compatible flat cable of claim 3, wherein the inner metal conductor is exposed by removing the outer insulating layer, the metal shielding layer and the inner insulating layer at both ends of the ground wire; the metal shielding layer is exposed by removing the external insulating layers at the two ends of the signal line; and electrically connecting the inner metal conductor of the grounding wire in the same end with the metal shielding layer of the signal wire.

5. The compliant flex cable of claim 3, wherein the coaxial flex cable assembly further comprises a conductive element, and the inner metal conductor of the ground wire and the metal shield of the signal wire are electrically connected through the conductive element.

6. The compliant flex cable of claim 5, wherein the conductive element is a metal sheet or a metal wire.

7. A connector assembly, comprising: a connector assembly and the compatible flat cable of any one of claims 1 to 6, wherein the FFC plug or the FPC plug is plugged with the connector assembly.

8. The connector assembly of claim 7, wherein said connector is an FFC connector or an FPC connector.

9. The connector assembly of claim 7, wherein the connector comprises an insulating support, an insulating flip-top cover and a pin header, and the FFC plug or the FPC plug is connected with the pin header through the pressure of the insulating support and the insulating flip-top cover so as to realize the connection between the FFC plug or the FPC plug and the connector.

10. An electronic device, characterized in that it comprises a connector assembly according to any one of claims 7 to 9.