CN203521831U

CN203521831U - Mini-LVDS (Low Voltage Differential Signaling) connecting line

Info

Publication number: CN203521831U
Application number: CN201320496751.8U
Authority: CN
Inventors: 田南律; 熊国军
Original assignee: Shenzhen Deren Electronic Co Ltd
Current assignee: Shenzhen Deren Electronic Co Ltd
Priority date: 2013-08-14
Filing date: 2013-08-14
Publication date: 2014-04-02
Anticipated expiration: 2023-08-14

Abstract

The utility model provides a Mini-LVDS connecting line which comprises a first LVDS connector, a first FFC (Flexible Flat Cable), a teflon wire, a second FFC and a second LVDS connector. Each FFC comprises an upper-layer insulating leather film, multiple flat copper wires arranged in parallel, and a lower-layer insulating leather film which are applied, wherein the two ends of each flat copper wire are exposed, one of the two ends is welded with the teflon wire, and the other of the two ends is assembled with the first/second LVDS connector; the middle parts of core wires of the teflon wire are wrapped to form a cylinder; and the ends of the core wires are exposed and are respectively welded with the first FFC and the second FFC. According to the Mini-LVDS connecting wire, the teflon wire adopts the smallest length, so that the production cost is greatly reduced; and the integrated LVDS connectors are adopted so as to improve the quality and yield of products, simplify the manufacture process, reduce manual operation and greatly improve the production efficiency.

Description

A kind of Mini-LVDS connecting line

Technical field

The utility model relates to holding wire technical field, relates in particular to the miniature low-voltage differential signal of a kind of Mini-LVDS() connecting line.

Background technology

LVDS(Low Voltage Differential Signaling) be a kind of little difference of vibration sub-signal technology, use low-down range signal (about 350mV) by a pair of difference PCB cabling or balanced cable transmission data.Mini-LVDS a kind ofly takes up room littlely, and has a kind of interfacing of LVDS function, at notebook computer and liquid crystal display, in high-resolution advances, plays an important role.The application of Mini-LVDS can reduce sixty percent by the line number signal in liquid crystal display control module, so manufacturer is in development whole plane display, not only can allow the layout of circuit board simpler, also can increase the intensity of the task performance of product, the cost that reduces system, reduction electromagnetic interference and save more electric power.

Be subject to the ever-increasing resolution requirements of electronic equipment for consumption and promote, the amount of transfer of data is in continuous increase, and electronic equipment for consumption is to lightening development, less, thinner to internal structure corresponding requirements simultaneously, but transmission speed requirement is faster.Mini-LVDS is as the signal transmission standard interface of the electronic equipments such as notebook computer, panel computer, and data transmission capabilities must constantly promote, to meet above demand.

The heart yearn of traditional Mini-LVDS connecting line adopts Teflon line, and a divided connector is welded respectively at the two ends of Teflon line; Divided connector by tens of metal terminals, an insulating body, fixedly iron-clad and shielding with upper iron shell, form.The manufacturing process of the Mini-LVDS connecting line that this is traditional is: iron-clad → bag acetic acid cloth → electrical measurement → inspection is entirely drawn → covered to check → UV glue → oven dry → connector upper iron shell subsides wheat to cut out the de-outer quilt → Teflon line rubberizing location → Tao tin → welding → solder joint of line.

Above-mentioned traditional Mini-LVDS connecting line has following defect: whole heart yearn all adopts Teflon line, because it has the advantages such as good thermally-stabilised and mechanical wear-resisting electrical insulation capability than other higher temperature lines, so there is the higher market price, make the production cost of connecting line higher.

Summary of the invention

The purpose of this utility model is to provide a kind of Mini-LVDS connecting line, reduces expending of Teflon line, under the prerequisite that guarantees stable electrical property, reduces production costs.

The purpose of this utility model is achieved through the following technical solutions.

The utility model proposes a kind of Mini-LVDS connecting line, comprising: a LVDS connector, the first flat FFC, Teflon line, the second flat FFC, the 2nd LVDS connector;

Described the first flat FFC and the second flat FFC include the upper strata insulating coating fitting, multiply flat copper wire, lower floor's insulating coating of discharge side by side, outside the two ends of described multiply flat copper wire are exposed to, an exposed end wherein and Teflon wire bonding, the assembling of another exposed end and first/two LVDS connector;

The mid portion of the heart yearn of described Teflon line is rolled into cylindric, outside two ends are exposed to, and the multiply flat copper wire welding of the wherein multiply flat copper wire of an exposed end and the first flat FFC welding, another exposed end and the second flat FFC;

A described LVDS connector is assembled in one end of the first flat FFC, and the 2nd LVDS connector is assembled in one end of the second flat FFC.

Preferably, a described LVDS connector/two LVDS connector comprises the space that the confession flat copper wire that formed by a sheet metal punching is passed through, and the metal upper shell being bent to form in through hole by described sheet metal and metal lower shell; The free end of described metal upper shell and metal lower shell is respectively equipped with suitable window and hanging platform;

When being assembled in one end of first flat FFC/ the second flat FFC, the multiply flat copper wire of this first flat FFC/ the second flat FFC is by described space and after stretching out, and metal upper shell and metal lower shell are interlocked by window and hanging platform.

Preferably, described Teflon line is full-length, is specially the length of the rotating shaft part of its computer passing.

Preferably, one end of the first flat FFC and the second flat FFC is also fitted with stiffening plate.

Preferably, the upper strata insulating coating of described the first flat FFC and the second flat FFC and/or lower floor's insulating coating also post characteristic impedance outward and control material.

Preferably, the connecting portion between a described LVDS connector, the first flat FFC, Teflon line, the second flat FFC and the 2nd LVDS connector is enclosed with acetic acid cloth.

Compared with prior art, the utility model embodiment has following beneficial effect.

1, because the flat FFC line cost of equal length is lower than Teflon line, and the longer quality of Teflon line is more unstable, fraction defective is high, so the utility model has adopted the structure of the flat FFC of flat FFC welding standard length Teflon wire bonding, Teflon line has adopted shortest length, can standardized production, not only greatly reduce production cost, and stay in grade.

2, the divided connector complex manufacturing technology of using in prior art needs many high-precision equipments to process simultaneously, and manufacturing cost is high, and quality yield is low; And divided connector, in two ends when welding with Teflon line, can make because volume is little terminal and iron-clad spacing little, finally cause that cost of labor is high, failure welding rate is high.And the utility model adopts the LVDS connector of integral type, compare with traditional split type LVDS connector, reduced using and assemble man-hour of material, improve product quality yield.

3, individual layer or double-deck characteristic impedance control material are posted in flat FFC surface, can effectively reduce the phase mutual interference in signal transmission, have guaranteed the stability of signal transmission.

4, traditional structure Mini-LVDS connecting line is when assembling divided connector, need " some UV glue → oven dry → connector upper iron shell pastes wheat and draws → cover iron-clad " technique, and the present invention adopts integral connectors, when assembling, only integral connectors and flat FFC need to be fastened, greatly simplified the fabrication processing of whole connecting line, reduce manual work, significantly improved production efficiency.

Accompanying drawing explanation

Fig. 1 is the structural representation of Mini-LVDS connecting line in the utility model embodiment;

Fig. 2 is the explosive view of Mini-LVDS connecting line in the utility model embodiment;

Fig. 3 is the structural representation of flat FFC in the utility model embodiment;

Fig. 4 is the structural representation of Teflon line in the utility model embodiment;

Fig. 5 is the structural representation of integral connectors in the utility model embodiment;

Fig. 6 is that in the utility model embodiment, integral connectors is installed on the structural representation behind flat FFC one end.

Embodiment

The utility model is a kind of innovation based on standard Mini-LVDS, is a kind of Novel signal transmission line that is applied to the electronic equipments such as high-resolution notebook computer and liquid crystal display, panel computer.

In the utility model, the main feature of Mini-LVDS connecting line is: 1. wire rod: heart yearn adopts flat FFC and Teflon line, reduces production costs; 2. structure: adopt the other end structure of solder connector respectively of welding respectively a flat FFC, two flat FFC at the two ends of the Teflon line of full-length, simplify production technology; 3. connector: adopt integral connectors, be directly fastened on one end of flat FFC, improve product yield, reduce manufacturing cost.

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Refer to Fig. 1 and Fig. 2, in the present embodiment, Mini-LVDS connecting line is comprised of integral connectors 1, flat FFC2, Teflon line 3, flat FFC4, integral connectors 5.

The structure of flat FFC2 and flat FFC4 is identical, as shown in Figure 3, by upper strata insulating coating 21, multiply flat copper wire 22, lower floor's insulating coating 23, stiffening plate 24, is fit together and is formed, and also posts screen 25 on insulating coating; The two ends of multiply flat copper wire 22 are exposed, and exposed position can be welded, and exposed position exposed position and the Teflon line 3 combined with integral connectors 5, the other end of one end weld mutually.In application process, multiply flat copper wire 22, plays transmission and conducting; Upper strata insulating coating 21, plays insulating protection effect; Lower floor's insulating coating 23, plays insulating protection effect; Screen 25, controls material for characteristic impedance, works to reduce phase mutual interference in signal transmission, can paste individual layer or bilayer, only shows the surface label single-layer shield layer 25 at upper strata insulating coating 21 in Fig. 3.

The structure of Teflon line 3 as shown in Figure 4, is set as full-length (specifically can be made as the length of the rotating shaft part of its computer passing), and intermediate portion is rolled into cylindric, so that it passes through notebook computer rotation shaft; The heart yearn 31 at its two ends is exposed, and exposed position can be welded, and weld mutually with flat FFC2 at the exposed position of one end, the exposed position of the other end and flat FFC4 weld mutually.

Integral connectors 1 is identical with the structure of integral connectors 5, as shown in Figure 5, it is formed the space of passing through for flat copper wire and forms metal upper shell 51 and metal lower shell 52 by punching place bending through die punching by a sheet metal, and the free end of metal upper shell 51 and metal lower shell 52 is respectively equipped with adaptive window 53 and hanging platform 54.In one end that integral connectors 1/ integral connectors 5 is installed, the upper exposed flat copper wire of the flat FFC4 of flat FFC2/ is through behind space, and metal upper shell 51 and metal lower shell 52 fasten by window 53 and hanging platform 54, and the structure after installation as shown in Figure 6.The connecting portion punching of integral connectors 1 and integral connectors 5 has raised step 55, is connected needle stand when applying fastens with display screen and pcb board, produces needed withdrawal force.

For protecting each solder joint and connector, the present embodiment also connecting portion between integral connectors 1, flat FFC2, Teflon line 3, flat FFC4, integral connectors 5 is all enclosed with acetic acid cloth 6.

The making flow process of above-mentioned Mini-LVDS connecting line comprises.

The first step: by the insulating coating laminating of the upper strata insulating coating of multiply flat copper wire and PET material, lower floor, reinforcing plate at one end, and paste outside individual layer or material is controlled in double-deck characteristic impedance, make the flat FFC2 shown in Fig. 3 and flat FFC4; Full-length Teflon line is made as to the semi-finished product shown in Fig. 4 in advance simultaneously.

Second step: by an exposed end welding of an exposed end welding, the other end and the flat FFC4 of an exposed end of Teflon line 3 and flat FFC2.

The 3rd step: by another exposed end of flat FFC2 and integral connectors 1 assemble mutually, another exposed end through punch die and the integral connectors 5 of flat FFC4 assemble mutually.

The 4th step: wrap up acetic acid cloth 6, protection solder joint and connector with the connecting portion of flat FFC4, flat FFC4 and integral connectors 5 at integral connectors 1 and flat FFC2, flat FFC2 and Teflon line 3, Teflon line 3.

The 5th step: the two ends of Mini-LVDS connecting line are connected respectively to mainboard and the Display connector of computer, can realize connection, complete the transmission of high definition video signal.

To sum up, manufacture craft of the present invention is: cut out the de-outer quilt → Teflon line rubberizing location → Tao tin → welding → solder joint of line and check → wrap acetic acid cloth → FFC to buckle connector → electrical measurement → inspection entirely, simplified manufacture craft.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a Mini-LVDS connecting line, is characterized in that, this connecting line comprises: a LVDS connector, the first flat FFC, Teflon line, the second flat FFC, the 2nd LVDS connector;

2. Mini-LVDS connecting line as claimed in claim 1, it is characterized in that, a described LVDS connector/two LVDS connector comprises the space that the confession flat copper wire that formed by a sheet metal punching is passed through, and the metal upper shell being bent to form in through hole by described sheet metal and metal lower shell; The free end of described metal upper shell and metal lower shell is respectively equipped with suitable window and hanging platform;

3. Mini-LVDS connecting line as claimed in claim 1, is characterized in that, described Teflon line is full-length, is specially the length of the rotating shaft part of its computer passing.

4. the Mini-LVDS connecting line as described in as arbitrary in claims 1 to 3, is characterized in that, one end of the first flat FFC and the second flat FFC is also fitted with stiffening plate.

5. the Mini-LVDS connecting line as described in as arbitrary in claims 1 to 3, is characterized in that, the upper strata insulating coating of described the first flat FFC and the second flat FFC and/or lower floor's insulating coating also post characteristic impedance outward and control material.

6. the Mini-LVDS connecting line as described in as arbitrary in claims 1 to 3, is characterized in that, the connecting portion between a described LVDS connector, the first flat FFC, Teflon line, the second flat FFC and the 2nd LVDS connector is enclosed with acetic acid cloth.