CN203193087U - LVDS wire for connecting display device, camera and main board of notebook computer - Google Patents

Abstract

The utility model provides an LVDS wire for connecting a display device, a camera and a main board of a notebook computer. The LVDS wire for connecting a display device, a camera and a main board of a notebook computer comprises a twisted wire FFC, a first FPC, a second FPC, a metal shell, and a CCD wire, wherein the twisted wire FFC is formed by combining an upper layer insulation leather membrane, multiple copper twisted wires, and a lower layer insulation leather membrane in an attaching manner; two ends of the twisted wire FFC are respectively connected with the first FPC and the second FPC in a welded manner; one end of the first FFC is connected with one end of the twisted wire FFC in a welded manner, and a punch die at the other end of the first FFC forms a structure which matches with a board end base; a punch die at one end of the second FPC is combined with the metal shell after forming a fastener-equipped structure; the other end of the second FPC comprises a second pin and a third pin which extends to the outside, the second pin is connected with the other end of the twisted wire FFC in a welded manner, and the third pin is connected with the CCD wire in a welded manner. The LVDS wire for connecting a display device, a camera and a main board of a notebook computer is advantaged by low cost, high production efficiency, good shielding performance, long bending service life, controllable characteristic impedance, and the like.

Description

Be used for connecting the LVDS line of laptop computer displays, camera and mainboard

Technical field

The utility model relates to the holding wire technical field, relates in particular to a kind of for the LVDS(Low Voltage Differential Signaling that connects laptop computer displays, camera and mainboard, Low Voltage Differential Signal) line.

Background technology

Disclosing three kinds of LVDS lines at present on the market, is respectively FPC (but soft printed circuit board (PCB)), MIRCO COAXIAL CABLE(extremely thin coaxial wire MCC) and ELECTRONIC WIRE(electronics line) be widely used in the electric signal transmission of electronic products such as notebook computer, LCD, LED.

The production process of existing ELECTRONIC WIRE LVDS line is: fit, cut, Hot bar, some glue beat end, slotting glue shell, mainly there is following shortcoming in this traditional structure:

1, characteristic impedance instability: normal condition can only reach 100 ± 20 Ω;

2, production efficiency is low: complex procedures, manual operation efficiency is low.

Summary of the invention

It is a kind of for the LVDS line that connects laptop computer displays, camera and mainboard, the characteristic impedance with stable and controllable that the purpose of this utility model is to provide;

Another purpose of the present utility model is to provide a kind of and simplifies working process for the LVDS line that connects laptop computer displays, camera and mainboard, improves manual operation efficiency.

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

A kind of for the LVDS line that connects laptop computer displays, camera and mainboard, comprise twisted wire FFC, a FPC, the 2nd FPC, metal-back, CCD line (charge coupled device-charge coupled device, CCD are a kind of camera transducers);

Described twisted wire FFC is sticked to form by upper strata insulating coating, multiply copper stranded conductor, lower floor's insulating coating, and outside the multiply copper stranded conductor at two ends is exposed to, is respectively applied to weld with a FPC, the 2nd FPC;

The welding of multiply copper stranded conductor, other end punch die that the pin pin that the end of a described FPC is exposed and the end of twisted wire FFC are exposed form the structure that is complementary with plate end stand;

The end punch die of described the 2nd FPC makes up with metal-back after forming the structure of being with buckle, and the structure of metal-back and plate end stand are complementary; The other end of the 2nd FPC comprises the 2nd pin pin and extended the 3rd pin pin, the multiply copper stranded conductor welding that the other end of the 2nd pin pin and twisted wire FFC is exposed, and the 3rd pin pin and CCD wire bonding connect.

Wherein, the outer surface of described twisted wire FFC posts characteristic impedance control material.

Wherein, the twisted wire FFC that described outer surface posts characteristic impedance control material is divided into several, and the folding posterior cord of all itemizes is integral.

Wherein, described all itemizes are after bundle is integral, and its outside also is enclosed with EMI masking material and insulating material; The outside of the CCD line behind a described FPC, the 2nd FPC and the bunch also is enclosed with EMI masking material and insulating material.

Wherein, also leave the rotation space between the described itemize that is wrapped up.

Wherein, the upper strata insulating coating of described twisted wire FFC, lower floor's insulating coating are the PET material.

Wherein, described metal-back comprises metal upper casing and metal lower shell; One end of described metal upper casing and metal lower shell is fixedly connected, side is provided with corresponding buckle and draw-in groove, and metal upper casing and metal lower shell fasten and leave the space that the 4th pin pin for band buckle structure one end of the 2nd FPC passes through between the back; The 4th pin exposed after wearing described space; The side of described metal upper casing and metal lower shell also is provided with the folding position of metal-back;

One end of metal-back is being installed, described the 2nd FPC band buckle structure one end punch die protruding end and female end are arranged, protruding end and folding position are suitable, buckle and draw-in groove fasten the back and female end suitable.

Wherein, described CCD line comprises core, terminal, glue shell, rubber;

The welding of the 3rd pin pin of one end of described core and the 2nd FPC, other end solder terminal, and with the welding position of terminal the glue shell is arranged fixedly; Described rubber fits in the surface of core.

Wherein, the core of described CCD line is specially copper stranded conductor.

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

1, screening performance is good: adopt double layer material control characteristic impedance and EMI, screening performance is splendid.

2, flex life is long: since twisted wire FFC by itemize and folding be rolled into cylindric, thereby not only can smoothly it be filled in undersized tubular space, and leave running clearance between the itemize, be convenient to bending, by waving number of times more than 30000 times, there is not short breaking phenomena, conductor resistance rate of change＜3%.

3, Costco Wholesale advantage: need not to beat separately terminal, insert the glue head, it is few to expend copper material, and operation is simple, and cost of labor is low.

4, characteristic impedance is controlled: this novel LVDS line is parallel lines structure, relies on the surface to stick on the special suction ripple of one deck material, reaches the purpose of control characteristic impedance.Its control range is accurate, stable, reaches 100 ± 10 Ω, further guarantees the stability of signal transmission.

5, production efficiency height: simplified flow chart, production capacity significantly promotes.

Description of drawings

Fig. 1 is the schematic diagram of the manufacturing procedure one of LVDS line among the utility model embodiment.

Fig. 2 is the schematic diagram of the manufacturing procedure two of LVDS line among the utility model embodiment.

Fig. 3 is the schematic diagram of the manufacturing procedure three of LVDS line among the utility model embodiment.

Embodiment

The utility model is based on a kind of innovation of ELECTRONIC WIRE LVDS line, be a kind of novel LVDS line of FFC that is applied to the transmission of notebook computer signal, hereinafter to be referred as FFC-NB LVDS line (FLEXIBLE FLAT CABLE-NOTE BOOK LOW VOLTAGE DIFFERENTIAL SIGNALING).

The main feature of FFC-NB LVDS line is in the utility model: 1. wire rod: heart yearn adopts multiply copper stranded conductor, FPC and CCD line; 2. structure: adopt FPC welding twisted wire FFC, twisted wire FFC welds FPC again, the structure of FPC recombinant metal-back and weldering CCD line; 3. itemize formula manufacturing process: with twisted wire FFC itemize parcel, can replace the cabling of original LVDS line, simplify technological process, bend resistance performance and antijamming capability are stronger, and be more stable than the electronics Wiring technology.

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 only in order to explaining the utility model, and be not used in restriction the utility model.

To shown in Figure 3, FFC-NB LVDS line is made up of twisted wire FFC1, FPC 2, FPC3, metal-back 4, CCD line 5 in the present embodiment in conjunction with Fig. 1.

(1) twisted wire FFC1: fit together and form by multiply copper stranded conductor 11, upper strata insulating coating 12, lower floor's insulating coating 13.The exposed twisted wire 11 in two ends can weld.

Wherein, multiply copper stranded conductor 11 plays transmission and conducting; Upper strata insulating coating 12 plays the insulating protection effect; Lower floor's insulating coating 13 plays the insulating protection effect.

The exposed multiply copper stranded conductor 11 in the two ends of twisted wire FFC1 welds with FPC 2, FPC3 respectively.

(2) FPC 2: be made up of pin pin 21, upper strata KAPTON film 22, the KAPTON of lower floor film 23.

Wherein, pin pin 21 plays transmission and conducting; Upper strata KAPTON film 22 plays the insulating protection effect; The KAPTON of lower floor film 23 plays the insulating protection effect.

Multiply copper stranded conductor 11 welding that the pin pin 21 of the end of FPC 2 is exposed with the end of twisted wire FFC1, the overall structure after integrally welded is shown in the position 14 among Fig. 2, and the other end punch die of FPC 2 has corner 24, plays the effect that coincide with plate terminal adapter coupling.

(3) FPC3: comprise pin pin 31, pin pin 32, pin pin 33, upper strata KAPTON film 34, the KAPTON of lower floor film 35.

Wherein, pin pin 31 plays transmission and conducting; Pin pin 32 is used for welding CCD line, plays transmission and conducting; Pin pin 33 is used for welding twisted wire FFC1, plays transmission and conducting; Upper strata KAPTON film 34 plays the insulating protection effect; The KAPTON of lower floor film 35 plays the insulating protection effect.

Multiply copper stranded conductor 11 welding that the pin pin 33 of the end of FPC3 is exposed with the other end of twisted wire FFC1, the overall structure after integrally welded shown in the position 15 among Fig. 2, the pin pin that extends out 32 of this end and 5 welding of CCD line; The other end punch die of FPC3 forms the structure of band buckle, and protruding end 36 plays the effect with metal-back 4 screens, this end and metal-back 4 combinations.

(4) metal-back 4, are made up of metal upper casing and metal lower shell, play the effect of connecting plate end stand.

Be respectively equipped with suitable draw-in groove 42 and buckle 43 on metal upper casing and the metal lower shell, play the fixedly effect of FPC3, prevent from coming off.A side left folding position 41 after one end of metal upper casing and metal lower shell was fixedlyed connected, and was convenient to pressing down and opening of metal-back.Salient point 44 on the metal-back 4, corresponding with the position, hole on the plate end stand, can prevent from after the grafting coming off.Leave space 45 between metal upper casing and the metal lower shell, be used for allowing the pin pin of FPC3 pass through, expose pin pin 31, pin pin 31 plays transmission and conducting.

(5) the CCD line 5, are made up of core 51, terminal 52, glue shell 53, rubber 54.

Wherein, core 51 is specially copper stranded conductor, plays transmission and conducting; Terminal 52 works to make things convenient for grafting, transmission and conducting; Glue shell 53 plays convenient plug and insulating protection; Rubber 54 plays insulating protection, and material is PVC or Te Fulong.Pin pin 32 welding of one end of core 51 and the end of FPC3, other end connecting terminal 52 and connecting portion fixedly have glue shell 53, and rubber 54 fits in the surface of core 51.

When realizing, the end of FPC2 and the welding of the end of twisted wire FFC1, other end punch die forms the structure with plate end stand coupling; Pin pin 33 welding of the other end of twisted wire FFC1 and FPC3; The pin pin 32 of FPC3 and 5 welding of CCD line; The other end band buckle structure of FPC3 is with metal-back 4 combinations.Can realize the combination of line end and connector like this, the electronics line structure that formation can be connected with main board for notebook computer, camera and display.

After twisted wire FFC1, FPC2, FPC3, metal-back 4, CCD line 5 are integrally welded, again twisted wire FFC1 itemize, bunch, processing have just been obtained target product FFC-NB LVDS line.As shown in Figure 3, itemize exposed locations 17 and 18 is rugosity, need the outer anti-resistance control of the characteristic material that pastes before the itemize, be specially and inhale the ripple material, want bunch parcel EMI masking material after the itemize, be specially conductive fabric, will wrap up the EMI masking material with FPC3 behind CCD line 5 bunch simultaneously, reach the purpose that whole control EMI disturbs.19 FPC3 for conductive fabric parcel wherein, 20 are the FPC2 behind the conductive fabric parcel, the 21 CCD lines 5 that wrap up for conductive fabric.

Particularly, the applying step of above-mentioned FFC-NB LVDS line comprises:

The first step: fitting the multiply copper stranded conductor up and down, insulating coating forms twisted wire FFC1;

Second step: with exposed multiply copper stranded conductor 11 welding of FPC2 one end pin pin 21 and twisted wire FFC1 one end.With the exposed multiply copper stranded conductor 11 of the twisted wire FFC1 other end and 33 welding of FPC3 one end pin pin, pin pin 32 connects with the CCD wire bonding, again with the end combination metal-back 4 of FPC3 with the structure of buckle.

The 4th step: twisted wire FFC1 is pasted characteristic impedance material itemize again, bunch outward.And with CCD wire harness line.

The 5th step: paste EMI masking material, insulating material according to technical indicator, be specially conductive fabric, acetic acid cloth;

The 6th step: with mainboard, camera and Display connector in FFC-NB LVDS connection, realize connecting, finish the transmission of electric current or electric signal.

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

Claims (9)

1. a LVDS line that is used for connecting laptop computer displays, camera and mainboard is characterized in that this LVDS line comprises twisted wire FFC, a FPC, the 2nd FPC, metal-back, CCD line;

Described twisted wire FFC is sticked to form by upper strata insulating coating, multiply copper stranded conductor, lower floor's insulating coating, and outside the multiply copper stranded conductor at two ends is exposed to, is respectively applied to weld with a FPC, the 2nd FPC;

The welding of multiply copper stranded conductor, other end punch die that the pin pin that the end of a described FPC is exposed and the end of twisted wire FFC are exposed form the structure that is complementary with plate end stand;

The end punch die of described the 2nd FPC makes up with metal-back after forming the structure of being with buckle, and the structure of metal-back and plate end stand are complementary; The other end of the 2nd FPC comprises the 2nd pin pin and extended the 3rd pin pin, the multiply copper stranded conductor welding that the other end of the 2nd pin pin and twisted wire FFC is exposed, and the 3rd pin pin and CCD wire bonding connect.

2. the LVDS line for connection laptop computer displays, camera and mainboard as claimed in claim 1 is characterized in that, the outer surface of described twisted wire FFC posts characteristic impedance control material.

3. the LVDS line for connection laptop computer displays, camera and mainboard as claimed in claim 2 is characterized in that, the twisted wire FFC that described outer surface posts characteristic impedance control material is divided into several, and the folding posterior cord of all itemizes is integral.

4. the LVDS line for connection laptop computer displays, camera and mainboard as claimed in claim 3 is characterized in that described all itemizes are after bundle is integral, and its outside also is enclosed with EMI masking material and insulating material; The outside of the CCD line behind a described FPC, the 2nd FPC and the bunch also is enclosed with EMI masking material and insulating material.

5. the LVDS line for connection laptop computer displays, camera and mainboard as claimed in claim 4 is characterized in that, also leaves between the described itemize that is wrapped up and rotates the space.

6. as claimed in claim 1 for the LVDS line that connects laptop computer displays, camera and mainboard, it is characterized in that upper strata insulating coating, the lower floor's insulating coating of described twisted wire FFC are the PET material.

7. as claimed in claim 1 for the LVDS line that connects laptop computer displays, camera and mainboard, it is characterized in that described metal-back comprises metal upper casing and metal lower shell; One end of described metal upper casing and metal lower shell is fixedly connected, side is provided with corresponding buckle and draw-in groove, and metal upper casing and metal lower shell fasten and leave the space that the 4th pin pin for band buckle structure one end of the 2nd FPC passes through between the back; The 4th pin exposed after wearing described space; The side of described metal upper casing and metal lower shell also is provided with the folding position of metal-back;

One end of metal-back is being installed, described the 2nd FPC band buckle structure one end punch die protruding end and female end are arranged, protruding end and folding position are suitable, buckle and draw-in groove fasten the back and female end suitable.

8. as claimed in claim 1 for the LVDS line that connects laptop computer displays, camera and mainboard, it is characterized in that described CCD line comprises core, terminal, glue shell, rubber;

The welding of the 3rd pin pin of one end of described core and the 2nd FPC, other end solder terminal, and with the welding position of terminal the glue shell is arranged fixedly; Described rubber fits in the surface of core.

9. as claimed in claim 8 for the LVDS line that connects laptop computer displays, camera and mainboard, it is characterized in that the core of described CCD line is specially copper stranded conductor.

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