Parallel wire material

Abstract

The utility model provides a parallel wire material, comprising a flat cable body and a bridle, the flat cable body comprises an insulating layer, a plurality of signal lines and two shielding layers, the plurality of signal lines are arranged in parallel on the insulating layer, the two shielding layers are respectively arranged in parallel on two opposite sides of the insulating layer, the two ends, in the axial direction of the signal lines, of the flat cable body are cut into multiple strands of flat wire rods, and each strand of flat wire rod in the multiple strands of flat wire rods comprises the signal line and the binding belt which are wound around the middle section of the flat cable body, so that the width of the middle section of the flat cable body is smaller than that of at least one of the two ends of the flat cable body. According to the utility model, the flexible flat cable is used for replacing the existing high-cost parallel paired cable.

Description

Technical Field

[0001] The utility model relates to a wire material, in particular to a parallel wire material suitable for an adapter card. Background Art

[0002] A riser card is a connector that allows a computer motherboard to optionally add other expansion cards to the computer. Figure 1 As shown, the existing adapter card R uses parallel wires W, and multiple parallel wires W are welded to the contacts of the adapter card R. However, the parallel wires W have many disadvantages. First, the production cost of the parallel wires W is too high. Figure 2A As shown, Figure 1 Each parallel pair of wires W in the circuit includes two signal wires S1 and two ground wires S2. The two signal wires S1 must be individually processed and coated with insulating material P, and then the shielding layer B is used to surround and coat the above four wires to complete the circuit. Figure 1 A parallel pair of wires W is used in the manufacturing process, so the production cost is high and the manufacturing process is complicated.

[0003] Furthermore, the process of welding the parallel wires W to the adapter card is very cumbersome and inconvenient. Before welding, the wires must be arranged first, because the parallel wires are not easy to arrange neatly and need to be manually combed; Figure 2C As shown, the outer insulating film (Polyester) T at the ends of the parallel wires is stripped off one by one, the shielding layer B is removed, and the insulating material P is removed, and finally the two signal wires S1 and the two ground wires S2 are exposed.

[0004] Generally speaking, a knife is used to cut the layers of parallel wires when stripping. However, since the parallel wires themselves are 3D structures and contain four conductors of different sizes, they may be twisted when stripping and may not be parallel to the cutting direction of the knife. Figure 2B As shown, the position of the signal line S1 on the left is lower than that of the signal line S1 on the right, so that the insulating material P cannot be cut and stripped smoothly, or the ground line S2 is cut off.

[0005] All of the above difficulties make the current parallel wires W unsuitable for use in adapter cards. Therefore, how to design a wire suitable for an adapter card is the primary goal of the present invention. Utility Model Content

[0006] The utility model aims to solve the problem that the existing parallel wires are not suitable for adapter cards, and provides a parallel wire.

[0007] To achieve the above-mentioned purpose and other purposes, the utility model proposes a parallel wire, which includes: a flat wire body, including an insulating layer, a plurality of signal wires and two shielding layers, wherein the plurality of signal wires are arranged in parallel on the insulating layer, and the two shielding layers are respectively arranged in parallel on opposite sides of the insulating layer, wherein the two ends of the flat wire body along the axial direction of the plurality of signal wires are cut into a plurality of flat wires, and each of the plurality of flat wires includes the signal wire; and a tie band, which is wrapped around the middle section of the flat wire body so that the width of the middle section of the flat wire body is smaller than the width of at least one of the two ends of the flat wire body.

[0008] Optionally, the plurality of flat wires are parallel to each other.

[0009] Optionally, the lengths of the multiple flat wires vary in steps.

[0010] Thus, the parallel wires of the present invention use flexible flat cables to replace the existing high-cost parallel wires. The flat wire body based on the flexible flat cable has the characteristics of being thin and light and resistant to folding, and will not affect signal transmission due to high temperature or long-term compression. Compared with the parallel wires of the prior art, the parallel wires of the present invention can reduce the problems of poor wire stripping and difficulty in straightening the wires during welding. Therefore, compared with the prior art, the parallel wires of the present invention can reduce production costs, improve yields, and reduce working hours, and the process is more stable.

[0011] In order to further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the description and drawings are only used to illustrate the present invention and are not intended to limit the scope of rights of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of an adapter card and parallel wires in the prior art;

[0013] Figure 2A It is a cross-sectional schematic diagram of a parallel pair of wires in the prior art;

[0014] Figure 2B A schematic diagram of stripping parallel pairs of wires in the prior art;

[0015] Figure 2C It is a three-dimensional schematic diagram of a parallel pair of wires in the prior art;

[0016] Figure 3 A schematic diagram of parallel wires according to an embodiment of the present utility model;

[0017] Figure 4 It is a cross-sectional schematic diagram of the parallel wires of an embodiment of the utility model;

[0018] Figure 5 It is a schematic diagram of parallel wires welded to an adapter card according to an embodiment of the utility model;

[0019] Figure 6 This is a flow chart of a method for manufacturing parallel wires according to an embodiment of the present utility model;

[0020] Figure 7 The present invention is a flow chart of a method for welding parallel wires to an adapter card according to an embodiment of the present invention.

[0021] Reference numerals

[0022] 100 parallel wires

[0023] 1 Flat cable body

[0024] 11 Signal Line

[0025] 12 Insulation layer

[0026] 13 Shielding layer

[0027] 1a Flat wire

[0028] 2 Drawstrings

[0029] B Shielding layer

[0030] P Insulation material

[0031] R Riser Card

[0032] S1 signal line

[0033] Steps S101 to S104

[0034] S2 Ground wire

[0035] Steps S201 to 206

[0036] T Insulation film

[0037] W Parallel pair wire DETAILED DESCRIPTION

[0038] In order to fully understand the present utility model, the present utility model is described in detail through the following specific embodiments and in conjunction with the accompanying drawings. Those skilled in the art can understand the purpose, features and effects of the present utility model from the contents disclosed in this specification. It should be noted that the present utility model can be implemented or applied through other different specific embodiments, and the various details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the utility model points of the present utility model. In addition, the drawings of the present utility model are only simple schematic illustrations and are not depicted according to actual dimensions. The following implementation methods will further explain the relevant technical contents of the present utility model in detail, but the disclosed contents are not intended to limit the claims of the present utility model. The description is as follows:

[0039] like Figure 3 As shown, the parallel wires 100 of the embodiment of the present invention include: a flat cable body 1 and a tie band 2 .

[0040] The flat cable body 1 is processed from a flexible flat cable (FFC), and thus has the same main structure as the flexible flat cable. Figure 4 As shown, the flat cable body 1 includes an insulating layer 12 , a plurality of signal lines 11 and two shielding layers 13 .

[0041] The plurality of signal lines 11 are arranged in parallel on the insulating layer 12. The plurality of signal lines 11 are conductors for transmitting electrical signals. The plurality of signal lines 11 can be made of copper wires, silver wires, aluminum wires or other metals and alloys, preferably materials with good electrical conductivity and ductility. In the present embodiment, the plurality of signal lines 11 are copper wires, but the present invention is not limited thereto.

[0042] The material of the insulating layer 12 can be selected from polyester, epoxy, polyurethane, polybutadiene, silicone, polyesterimide and polyimide. When manufacturing the flat cable body 1, a plurality of parallel signal lines 11 are pressed into the insulating layer 12 (film) to form a flat and neat planar cable.

[0043] The two shielding layers 13 are respectively arranged in parallel on opposite sides of the insulating layer 12. The shielding layers 13 can be made of copper, aluminum or other materials to prevent external electromagnetic waves from interfering with signal transmission of the signal line 11.

[0044] like Figure 3 and Figure 5As shown, the two ends of the flat cable body 1 along the axial direction of the multiple signal lines 11 are cut into multiple flat wires 1a, and each of the multiple flat wires 1a includes a signal line 11. Cutting can be performed using a cutter, and every five signal lines 11 can be cut into one flat wire 1a, or every ten signal lines 11 can be cut into one flat wire 1a, and the utility model is not limited thereto. The length of the flat wire 1a is not limited, and only the parts close to the head and tail ends can be cut, or the cutting line can be extended all the way to the center, leaving only a small part to connect the multiple flat wires 1a to each other. Even the multiple flat wires 1a can be completely separated from each other, but the completely separated multiple flat wires 1a are more difficult to organize.

[0045] The tie band 2 is wrapped around the middle section of the flat cable body 1 so that the width of the middle section of the flat cable body 1 is smaller than the width of at least one of the two ends of the flat cable body 1. The tie band 2 is a sticky and ductile material such as tape, which can compress the width of the middle section of the flat cable body 1. The middle section of the flat cable body 1 wrapped with the tie band 2 may include a portion that is cut into multiple strands of flat wires 1a by a cutter, or may be an uncut portion. The so-called middle section of the flat cable body 1 is not limited to a specific proportion or position, and any portion other than the head and tail ends of the flat cable body 1 that does not affect or hinder welding to the adapter card can be wrapped with the tie band 2 to reduce the width.

[0046] In summary, the parallel wires 100 of the present invention use flexible flat cables to replace the existing high-cost parallel wires. The flat wire body 1 based on the flexible flat cable is thin and resistant to folding, and will not affect signal transmission due to high temperature or long-term compression. When the flat flat wire body 1 is divided into multiple strands of flat wires 1a, the material is soft and can be bent 360 degrees without dead ends. More importantly, compared with the parallel wires of the prior art, the parallel wires 100 of the present invention can reduce the problems of poor wire stripping and difficulty in straightening the wires during welding. Figure 4 As shown, since the flat cable body 1 / multi-strand flat wire 1a is a flat structure, it can face the cutting tool used to strip the insulation layer 11, and the signal line 11 can be easily exposed for welding joints. Therefore, the parallel wire 100 of the utility model can reduce production costs, improve yields and reduce working hours compared to the prior art, and the process is more stable. Although one purpose of the parallel wire 100 of the utility model is to improve the wire of the adapter card, the use of the parallel wire 100 of the utility model is not limited to this, and can also be used to connect other electronic devices.

[0047] Furthermore, in this embodiment, the plurality of flat wires 1a are parallel to each other, that is, the cutter cuts the flat wire body 1 in parallel, but the present invention is not limited thereto.

[0048] Furthermore, in this embodiment, the lengths of the multiple strands of flat wires 1a change in a step-by-step manner. Specifically, the lengths of the strands of flat wires 1a are shortened in sequence. After being twisted and bent, such flat wires 1a are more suitable for matching with the adapter card R. Figure 5 shown.

[0049] The utility model also proposes a method for manufacturing parallel wires, such as Figure 6 As shown, the following steps are included:

[0050] In step S101, a flexible flat cable is first provided. The manufacturing method of the flexible flat cable is a mature technology, including the steps of wire rolling, lamination forming, cutting processing, etc., which will not be described here.

[0051] In step S102, the two ends of the flexible flat cable along the axial direction of the signal line 11 are cut into multiple flat wires 1a to form the aforementioned flat cable body 1. Each of the multiple flat wires 1a includes a signal line 11. Cutting can be performed using a cutter, and every five signal lines 11 can be cut into one flat wire 1a, or every ten signal lines 11 can be cut into one flat wire 1a, and the utility model is not limited thereto.

[0052] In step S103, a tie band 2 is used to wrap around the middle section of the flexible flat cable so that the width of the middle section of the flexible flat cable is smaller than the width of the two ends of the flexible flat cable. The middle section of the flexible flat cable / flat cable body 1 wrapped with the tie band 2 may include a portion cut into multiple strands of flat wires 1a by a cutter, or may be an uncut portion. The so-called middle section is not limited to a specific proportion or position. Any portion other than the head and tail ends of the flexible flat cable / flat cable body 1 that does not affect or hinder welding to the adapter card can be wrapped with the tie band 2 to reduce the width.

[0053] After step S103 , the parallel wires 100 suitable for welding to the adapter card or other various electronic devices are obtained.

[0054] Furthermore, in this embodiment, step S104 may be further included: trimming the length of the plurality of flat wires 1a so that the length of the plurality of flat wires 1a changes in a step-by-step manner. The step-by-step change means that the length of each flat wire 1a is shortened in sequence. Such a flat wire 1a is more suitable for matching with the adapter card R after being twisted and bent. Figure 5 shown.

[0055] The utility model also proposes a method for welding parallel wires to an adapter card, such as Figure 7 As shown, the following steps are included:

[0056] Steps S201 to S203 are the same as steps S101 to S103 and will not be described again.

[0057] In step S205, the insulation layer 12 at the end of each of the multiple flat wires 1a is removed by using a cutter or other tool to expose the signal wire 11. Since the thickness of the flexible flat cable / flat cable body 1 / multiple flat wires 1a is fixed, the insulation layer 12 covering the signal wire 11 can be easily removed by using a cutter or other tool to cut toward the surface of the flexible flat cable to a designed depth.

[0058] In step S206, if Figure 5 As shown, the signal line 11 is finally soldered to the contact point on the adapter card R.

[0059] After step S206, the parallel wires can be welded to the adapter card R in a low-cost and low-process manner.

[0060] Furthermore, in this embodiment, step S203 to step S205 may further include step S204: trimming the length of the plurality of flat wires 1a so that the length of the plurality of flat wires 1a changes in a stepwise manner. Step S204 is substantially the same as step S104.

[0061] The present invention has been disclosed in the above with preferred embodiments, but those skilled in the art should understand that the embodiments are only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the embodiments should be set as being included in the scope of the present invention. Therefore, the protection scope of the present invention shall be based on the content scope defined in the claims.

Claims

1. A parallel wire, characterized in that: The parallel wires include: A flat cable body, comprising an insulating layer, a plurality of signal wires and two shielding layers, wherein the plurality of signal wires are arranged in parallel to the insulating layer, and the two shielding layers are respectively arranged in parallel to opposite sides of the insulating layer, wherein both ends of the flat cable body along the axial direction of the plurality of signal wires are cut into a plurality of flat wires, and each of the plurality of flat wires comprises the signal wire; and A strap is wound around the middle section of the flat cable body so that the width of the middle section of the flat cable body is smaller than the width of at least one of the two ends of the flat cable body.

2. The parallel wire according to claim 1, characterized in that: The plurality of flat wires are parallel to each other.

3. The parallel wires according to claim 2, characterized in that: The lengths of the plurality of flat wires vary in steps.

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