TWM513443U - Two-core parallel electric wire - Google Patents
Two-core parallel electric wire Download PDFInfo
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- TWM513443U TWM513443U TW104208715U TW104208715U TWM513443U TW M513443 U TWM513443 U TW M513443U TW 104208715 U TW104208715 U TW 104208715U TW 104208715 U TW104208715 U TW 104208715U TW M513443 U TWM513443 U TW M513443U
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Description
本創作係有關於一種2芯平行電線,更具體而言,係有關於由金屬箔樹脂帶覆蓋平行並排之2根電線、且將樹脂帶捲繞於該2根電線之周圍而成之2芯平行電線。The present invention relates to a 2-core parallel electric wire, and more particularly to a 2-core electric wire covered by a metal foil resin tape and which is wound in parallel around the two electric wires. Parallel wires.
作為用於在千兆赫(GHz)波段之高頻段下進行通訊之訊號線,已知有如下之2芯平行電線,即,將複數根、例如2根電線,作為以差動訊號傳送方式傳送數位訊號之屏蔽電纜而構成。As a signal line for communication in a high frequency band of the gigahertz (GHz) band, a 2-core parallel electric wire is known, that is, a plurality of wires, for example, two wires, are transmitted as a differential signal transmission method. The signal is shielded by a cable.
專利文獻1中揭示了如下之屏蔽電纜,其具備將金屬箔樹脂帶捲繞於複數根訊號線之周圍而成之屏蔽導體。且揭示了如下構成:該屏蔽電纜為了抑制高頻段下之頻帶空段(suck out)現象(訊號衰減量之頻率特性之大幅下降),而於訊號線之周圍縱向地設置有金屬箔樹脂帶。此處,於將金屬箔樹脂帶橫向捲繞之構造中,因將其導體層與絕緣體層於長度方向上週期性地重複而高頻訊號會引起共振從而產生頻帶空段現象,與此相對,藉由縱向地設置金屬箔樹脂帶,而可抑制上述頻帶空段現象。Patent Document 1 discloses a shielded cable including a shield conductor in which a metal foil resin tape is wound around a plurality of signal lines. Further, a configuration is disclosed in which the shielded cable is provided with a metal foil resin tape longitudinally around the signal line in order to suppress a band out phenomenon (a large drop in the frequency characteristic of the signal attenuation amount) in the high frequency band. Here, in the structure in which the metal foil resin tape is wound laterally, the conductor layer and the insulator layer are periodically repeated in the longitudinal direction, and the high-frequency signal causes resonance to generate a band gap phenomenon, whereas the band gap phenomenon occurs. By providing the metal foil resin tape in the longitudinal direction, the above-described band gap phenomenon can be suppressed.
[專利文獻1]日本專利特開2012-238468號公報[Patent Document 1] Japanese Patent Laid-Open Publication No. 2012-238468
在如專利文獻1般僅將由金屬箔樹脂帶形成之屏蔽導體縱向地加以設置時,於20GHz附近之頻段下會產生訊號衰減量之頻率特性急遽減少之頻帶空段或者瞬時跌落(dips)。When only the shield conductor formed of the metal foil resin tape is longitudinally disposed as in Patent Document 1, a frequency band having a sharp decrease in the frequency characteristic of the signal attenuation amount or a dip is generated in a frequency band around 20 GHz.
本創作鑒於上述實際狀況而完成,目的在於提供抑制高頻段之訊號傳送中之訊號衰減量之頻率特性之急遽衰減,且可進行高速、穩定之作動訊號傳送之2芯平行電線。The present invention has been made in view of the above-described actual conditions, and aims to provide a 2-core parallel electric wire capable of suppressing the rapid attenuation of the frequency characteristic of the signal attenuation amount in the signal transmission in the high frequency band and performing high-speed and stable operation signal transmission.
本創作之2芯平行電線具有:平行並排之2根絕緣電線;金屬箔樹脂帶,其縱向地一起覆蓋該2根絕緣電線;第1樹脂帶,其螺旋狀捲繞於該金屬箔樹脂帶之外側;以及第2樹脂帶,其以與該第1樹脂帶之螺旋狀捲繞之捲繞方向不同之方向螺旋狀捲繞於上述第1樹脂帶上,上述第1樹脂帶之捲繞間距為5mm以下。The two-core parallel wire of the present invention has two insulated wires arranged side by side in parallel; a metal foil resin tape which longitudinally covers the two insulated wires together; and a first resin tape which is spirally wound around the metal foil resin tape And a second resin tape spirally wound around the first resin tape in a direction different from a winding direction of the spiral winding of the first resin tape, wherein a winding pitch of the first resin tape is 5mm or less.
根據本創作,可提供抑制高頻段之訊號傳送中之訊號衰減量之頻率特性之急遽衰減,且可進行高速、穩定之作動訊號傳送之2芯平行電線。According to the present invention, it is possible to provide a 2-core parallel electric wire which can suppress the rapid attenuation of the frequency characteristic of the signal attenuation amount in the signal transmission in the high frequency band and can perform high-speed and stable operation signal transmission.
1‧‧‧訊號導體1‧‧‧ Signal conductor
2‧‧‧絕緣體2‧‧‧Insulator
3‧‧‧絕緣電線3‧‧‧Insulated wires
4‧‧‧汲極線4‧‧‧汲polar line
5‧‧‧金屬箔樹脂帶5‧‧‧Metal foil resin tape
6‧‧‧第1樹脂帶6‧‧‧1st resin tape
7‧‧‧第2樹脂帶7‧‧‧2nd resin tape
10‧‧‧屏蔽電纜10‧‧‧Shielded cable
圖1係用以說明本創作之2芯平行電線之構成例之圖。Fig. 1 is a view for explaining a configuration example of a 2-core parallel electric wire of the present invention.
圖2係用以說明本創作之2芯平行電線之構成例之另一圖。Fig. 2 is another view for explaining a configuration example of a 2-core parallel electric wire of the present invention.
圖3係表示與2芯平行電線中之第1樹脂帶之間距相應的訊號衰減量 之頻率特性之圖。Figure 3 shows the corresponding signal attenuation between the first resin strip in the 2-core parallel wire. A diagram of the frequency characteristics.
圖4係表示與2芯平行電線中之第1樹脂帶之間距相應的訊號衰減量之頻率特性之另一圖。Fig. 4 is another view showing the frequency characteristic of the corresponding signal attenuation amount from the first resin strip in the 2-core parallel electric wire.
圖5係表示與2芯平行電線中之第1樹脂帶之間距相應的訊號衰減量之頻率特性之又一圖。Fig. 5 is still another view showing the frequency characteristic of the corresponding signal attenuation amount from the first resin tape in the 2-core parallel electric wire.
首先,列舉本創作之實施形態進行說明。First, an embodiment of the present creation will be described.
(1)本申請案之創作為2芯平行電線,其具有:平行並排之2根絕緣電線;金屬箔樹脂帶,其縱向地一起覆蓋該2根絕緣電線;第1樹脂帶,其螺旋狀捲繞於該金屬箔樹脂帶之外側;以及第2樹脂帶,其以與該第1樹脂帶之螺旋狀捲繞之捲繞方向不同之方向螺旋狀捲繞於上述第1樹脂帶上,上述第1樹脂帶之捲繞間距為5mm以下。藉此,可提供抑制高頻段下之訊號傳送中之訊號衰減量之頻率特性之急遽衰減,且可進行高速、穩定之作動訊號傳送之2芯平行電線。(1) The creation of the present application is a 2-core parallel electric wire having two insulated electric wires side by side in parallel; a metal foil resin tape which longitudinally covers the two insulated electric wires together; a first resin tape having a spiral shape Wrapped around the outer side of the metal foil resin tape; and a second resin tape spirally wound around the first resin tape in a direction different from a winding direction of the spiral winding of the first resin tape, 1 The winding distance of the resin tape is 5 mm or less. Thereby, it is possible to provide a 2-core parallel electric wire which can suppress the rapid attenuation of the frequency characteristic of the signal attenuation amount in the signal transmission in the high frequency band and can perform high-speed and stable operation signal transmission.
(2)上述第1樹脂帶之捲繞間距較佳為4mm以下。藉此,可進行更廣頻段下之穩定之作動訊號傳送。(2) The winding pitch of the first resin tape is preferably 4 mm or less. Thereby, stable signal transmission under a wider frequency band can be performed.
以下,一邊參照圖式一邊對本創作之2芯平行電線之具體例進行說明。再者,本創作並不限定於該些例示,包含由申請專利範圍表示、且於與申請專利範圍均等之含義及範圍內之全部變更。Hereinafter, a specific example of the two-core parallel electric wire of the present creation will be described with reference to the drawings. In addition, the present invention is not limited to the examples, and all modifications within the meaning and scope of the claims are included in the scope of the claims.
圖1及圖2係用以說明本創作之2芯平行電線之構成例之圖,圖1係表示自作為2芯平行電線構成之屏蔽電纜之長度方向正面觀察 其端面時的積層構成之圖,圖2係用以說明自相對於上述屏蔽電纜之長度方向之側方觀察該屏蔽電纜時的積層構成之圖。1 and 2 are views for explaining a configuration example of a 2-core parallel electric wire of the present invention, and FIG. 1 is a front view of a shielded cable formed of a 2-core parallel electric wire. FIG. 2 is a view for explaining a laminated structure when the shielded cable is viewed from the side in the longitudinal direction of the shielded cable. FIG.
圖1及圖2中,1為訊號導體,2為絕緣體,3為絕緣電線,4為汲極線,5為金屬箔樹脂帶,6為第1樹脂帶,7為第2樹脂帶,10為屏蔽電纜。In Fig. 1 and Fig. 2, 1 is a signal conductor, 2 is an insulator, 3 is an insulated wire, 4 is a drain wire, 5 is a metal foil resin tape, 6 is a first resin tape, 7 is a second resin tape, and 10 is a Shielded cable.
作為2芯平行電線而構成之屏蔽電纜10具有如下構成,即,將2根由具有規定之介電常數之絕緣體2包覆包含單心線或絞線之訊號導體1而成的絕緣電線(訊號線)3平行排列。絕緣電線3之訊號導體1由銅或鋁等優良導電體、或對該些優良導電體實施鍍錫而成的單心線或絞線形成,例如使用相當於AWG24~32之線材(外徑0.51~0.21mm)。The shielded cable 10 which is a two-core parallel electric wire has a structure in which two insulated conductors (signal lines) including a single conductor or a stranded signal conductor 1 are covered by an insulator 2 having a predetermined dielectric constant. ) 3 arranged in parallel. The signal conductor 1 of the insulated wire 3 is formed of a good conductor such as copper or aluminum, or a single core wire or a stranded wire obtained by tin-plating the excellent conductor, for example, a wire equivalent to AWG 24 to 32 (outer diameter 0.51) ~0.21mm).
作為將訊號導體1電性絕緣之絕緣體2,使用介電常數盡可能小者,例如可使用聚乙烯(PE,polyethylene)、乙烯-乙酸乙烯酯共聚物(EVA,Ethylene Vinyl Acetate)、氟樹脂等。亦可使樹脂發泡而使微細之氣泡位於樹脂中。於包含絕緣體2中之發泡層之情形時,發泡層之發泡率可設為50~70%。由該些線材與絕緣樹脂形成之絕緣電線3之外徑為3.0mm~0.4mm,例如使用AWG26之線材時之絕緣電線3之外徑設為1.2mm左右。再者,亦可代替絕緣電線3而使用同軸電線,該同軸電線係將作為外部導體之金屬絲編織或橫向捲繞於絕緣體2之外側、或者將金屬箔樹脂帶捲繞於絕緣體2之外側而成。As the insulator 2 for electrically insulating the signal conductor 1, the dielectric constant is as small as possible, and for example, polyethylene (PE), ethylene-vinyl acetate copolymer (EVA, Ethylene Vinyl Acetate), fluororesin, etc. can be used. . The resin may also be foamed so that fine bubbles are located in the resin. In the case of including the foamed layer in the insulator 2, the foaming rate of the foamed layer can be set to 50 to 70%. The outer diameter of the insulated wire 3 formed of the wire and the insulating resin is 3.0 mm to 0.4 mm. For example, when the wire of the AWG 26 is used, the outer diameter of the insulated wire 3 is set to about 1.2 mm. Further, a coaxial electric wire may be used instead of the insulated electric wire 3, which is obtained by braiding or laterally winding a wire as an outer conductor on the outer side of the insulator 2 or winding a metal foil resin tape around the outer side of the insulator 2. to make.
然後,使汲極線4相對於平行排列之2根訊號導體1為縱向。汲極線4之厚度較佳為與絕緣電線3之導體直徑相同或稍細。或者,亦可設為不使用汲極線4之構成。Then, the drain line 4 is made longitudinal with respect to the two signal conductors 1 arranged in parallel. The thickness of the drain wire 4 is preferably the same as or slightly thinner than the diameter of the conductor of the insulated wire 3. Alternatively, it may be configured not to use the drain line 4.
於2根絕緣電線3及汲極線4之外周,縱向地(捲煙式,金屬箔樹脂 帶與電線之長度方向一致之捲繞方式)設置作為屏蔽導體之金屬箔樹脂帶5。藉此,2根絕緣電線3一起被屏蔽。汲極線之表面具有導電性。金屬箔樹脂帶以其金屬箔與汲極線接觸性地導通之方式配置。In the outer circumference of the two insulated wires 3 and the drain wire 4, longitudinally (cigarette type, metal foil resin) The metal foil resin tape 5 as a shield conductor is provided in a winding manner in which the length direction of the electric wire is aligned. Thereby, the two insulated wires 3 are shielded together. The surface of the bungee wire is electrically conductive. The metal foil resin tape is disposed such that its metal foil is in contact with the drain wire in a conductive manner.
金屬箔樹脂帶5使用將鋁或銅等金屬箔疊層於聚對苯二甲酸乙二酯(PET,polyethylene terephthalate)等塑膠基材(樹脂帶)而成者。 金屬箔之厚度例如為3μm~30μm,塑膠基材之厚度例如為3μm~50μm,金屬箔樹脂帶5之厚度例如為6μm~80μm。The metal foil resin tape 5 is formed by laminating a metal foil such as aluminum or copper on a plastic substrate (resin tape) such as polyethylene terephthalate (PET). The thickness of the metal foil is, for example, 3 μm to 30 μm, the thickness of the plastic substrate is, for example, 3 μm to 50 μm, and the thickness of the metal foil resin tape 5 is, for example, 6 μm to 80 μm.
於金屬箔樹脂帶5之外側,設置有例如以聚對苯二甲酸乙二酯(PET)為基材樹脂之樹脂帶6、7。內側之第1樹脂帶6與其外側之第2樹脂帶7分別以螺旋狀捲繞而設置,螺旋狀捲繞之捲繞方向於第1樹脂帶6與第2樹脂帶7中互不相同。On the outer side of the metal foil resin tape 5, resin tapes 6, 7 made of, for example, polyethylene terephthalate (PET) as a base resin are provided. The first resin tape 6 on the inner side and the second resin tape 7 on the outer side are spirally wound, and the winding direction of the spiral winding is different from each other in the first resin tape 6 and the second resin tape 7.
進而,第2樹脂帶7之外側亦可由未圖示之薄膜包覆,以具有作為防止污染之電纜之耐水性。Further, the outer side of the second resin tape 7 may be coated with a film (not shown) to have water resistance as a cable for preventing contamination.
本創作之實施形態中,將第1樹脂帶6及第2樹脂帶7以螺旋狀捲繞之捲繞方向互不相同之方式依序包覆於成為縱向之金屬箔樹脂帶5、及其外側,藉由將各自之捲繞間距最佳化,而可抑制高頻段之訊號傳送中之訊號衰減量之頻率特性之急遽衰減,藉此可進行高速、穩定之作動訊號傳送。In the embodiment of the present invention, the first resin tape 6 and the second resin tape 7 are sequentially coated on the metal foil resin tape 5 in the longitudinal direction and the outer side thereof in such a manner that the winding directions of the spiral winding are different from each other. By optimizing the respective winding pitches, it is possible to suppress the rapid attenuation of the frequency characteristics of the signal attenuation amount in the signal transmission in the high frequency band, thereby enabling high-speed, stable operation of signal transmission.
第1及第2樹脂帶6、7如圖2所示般以螺旋狀捲繞之捲繞方向互不相同之方式設置。於第1樹脂帶向右捲繞之情形時,第2樹脂帶向左捲繞。於第1樹脂帶向左捲繞之情形時,第2樹脂帶向右捲繞。樹脂帶之重疊寬度較佳為帶寬之五分之一至二分之一。As shown in FIG. 2, the first and second resin tapes 6 and 7 are provided so that the winding directions of the spiral winding are different from each other. When the first resin tape is wound to the right, the second resin tape is wound to the left. When the first resin tape is wound to the left, the second resin tape is wound to the right. The overlap width of the resin tape is preferably from one fifth to one half of the bandwidth.
此處,將第1樹脂帶6之螺旋狀捲繞之間距P1與第2樹脂帶7之螺旋狀捲繞之間距P2最佳化。Here, the distance P2 between the spiral windings of the first resin tape 6 and the spiral winding between the P1 and the second resin tape 7 is optimized.
具體而言,將第1樹脂帶6之螺旋狀捲繞間距P1設為第2樹脂帶7之螺旋狀捲繞間距P2以下。或者,將第1樹脂帶6之螺旋狀捲繞間距P1設為將2根絕緣電線3排列之寬度之2.1倍以下。或者,將第1樹脂帶6之螺旋狀捲繞間距P1設為5mm以下。更佳為設為組合該些之構造。Specifically, the spiral winding pitch P1 of the first resin tape 6 is set to be equal to or less than the spiral winding pitch P2 of the second resin tape 7 . Alternatively, the spiral winding pitch P1 of the first resin tape 6 is set to be 2.1 times or less the width of the two insulated wires 3 arranged. Alternatively, the spiral winding pitch P1 of the first resin tape 6 is set to 5 mm or less. More preferably, it is set to combine the configurations.
圖3至圖5係表示與2芯平行電線中之第1樹脂帶之間距相應的訊號衰減量之頻率特性之圖。各圖中將縱軸設為訊號衰減量(dB/m),橫軸設為頻率(GHz)而表示訊號衰減量之頻率特性。訊號衰減量由2根平行電線中之作動訊號之***損失Sdd21表示。3 to 5 are views showing the frequency characteristics of the corresponding signal attenuation amount from the first resin tape in the 2-core parallel electric wire. In each of the figures, the vertical axis is the signal attenuation amount (dB/m), and the horizontal axis is the frequency (GHz) to indicate the frequency characteristic of the signal attenuation amount. The amount of signal attenuation is represented by the insertion loss Sdd21 of the actuation signal in the two parallel wires.
此處,使用AWG26之絕緣電線3(外徑1.2mm),將第1樹脂帶6及第2樹脂帶7之帶寬設為5mm,亦將第2樹脂帶7之捲繞間距P2設為5mm,使第1樹脂帶6之捲繞間距P1發生變化,並確認此時之訊號衰減量。樹脂帶之重疊寬度於各個樹脂帶中設為帶寬之四分之一。Here, the insulated wire 3 (outer diameter 1.2 mm) of the AWG 26 is used, and the bandwidth of the first resin tape 6 and the second resin tape 7 is set to 5 mm, and the winding pitch P2 of the second resin tape 7 is also set to 5 mm. The winding pitch P1 of the first resin tape 6 was changed, and the amount of signal attenuation at this time was confirmed. The overlap width of the resin tape is set to be one quarter of the bandwidth in each of the resin tapes.
圖3係表示將第1樹脂帶6之捲繞間距P1設為6mm時的訊號衰減量之頻率特性之圖。藉此,於低於頻率20GHz之頻段下會產生訊號衰減量之下降即瞬時跌落,從而無法獲得該頻率區域中之穩定之傳送特性。Fig. 3 is a view showing the frequency characteristics of the signal attenuation amount when the winding pitch P1 of the first resin tape 6 is 6 mm. Thereby, a drop in the amount of signal attenuation, that is, an instantaneous drop, occurs in a frequency band lower than the frequency of 20 GHz, so that stable transmission characteristics in the frequency region cannot be obtained.
圖4係表示將第1樹脂帶6之捲繞間距P1設為5mm時的訊號衰減量之頻率特性之圖。據此,於超過頻率20GHz之頻段下會產生訊號衰減量之下降即瞬時跌落,但直至頻率20GHz為止均不會產生瞬時跌落。藉此,於直至20GHz程度為止之高頻區域均可獲得穩定之傳送特性。4 is a view showing the frequency characteristics of the signal attenuation amount when the winding pitch P1 of the first resin tape 6 is 5 mm. Accordingly, a decrease in the amount of signal attenuation, that is, an instantaneous drop, occurs in a frequency band exceeding the frequency of 20 GHz, but no instantaneous drop occurs until the frequency is 20 GHz. Thereby, stable transmission characteristics can be obtained in a high frequency region up to the order of 20 GHz.
圖5係表示將第1樹脂帶6之捲繞間距P1設為4mm時的訊號衰減量之頻率特性之圖。據此,於直至頻率25GHz為止之所有頻段下均不會產生訊號衰減量之急遽下降,從而可獲得穩定之傳送特性。Fig. 5 is a view showing the frequency characteristics of the signal attenuation amount when the winding pitch P1 of the first resin tape 6 is 4 mm. Accordingly, there is no sharp drop in the amount of signal attenuation in all frequency bands up to the frequency of 25 GHz, so that stable transmission characteristics can be obtained.
根據以上,於如下構成中,即,於2根平行排列之訊號導體1之周圍縱向地配置金屬箔樹脂帶5,且於該金屬箔樹脂帶5之周圍使第1樹脂帶6及第2樹脂帶7各自捲繞方向不同地進行螺旋狀捲繞,第1樹脂帶6之捲繞間距較佳設為5mm以下,更佳設為4mm以下。換言之,第1樹脂帶6之捲繞間距較佳為與樹脂帶6之帶寬相等或為其以下,進而較佳為樹脂帶6之帶寬度之80%以下。According to the above configuration, the metal foil resin tape 5 is disposed longitudinally around the two signal conductors 1 arranged in parallel, and the first resin tape 6 and the second resin are provided around the metal foil resin tape 5 The belts 7 are spirally wound in different winding directions, and the winding pitch of the first resin belt 6 is preferably 5 mm or less, more preferably 4 mm or less. In other words, the winding pitch of the first resin tape 6 is preferably equal to or less than the bandwidth of the resin tape 6, and more preferably 80% or less of the tape width of the resin tape 6.
第1樹脂帶之寬度較佳為將2根構成2芯平行電線之絕緣電線排列之寬度之2.1倍以下。The width of the first resin tape is preferably 2.1 times or less the width of the two insulated electric wires constituting the two-core parallel electric wires.
第1樹脂帶之捲繞間距較佳為第2樹脂帶之捲繞間距以下。The winding pitch of the first resin tape is preferably equal to or less than the winding pitch of the second resin tape.
又,第2樹脂帶7之捲繞間距P2較佳為與樹脂帶之帶寬相等。第1及第2樹脂帶6、7之帶寬進而較佳設為絕緣電線3之直徑之約4倍。Further, the winding pitch P2 of the second resin tape 7 is preferably equal to the bandwidth of the resin tape. The bandwidth of the first and second resin strips 6, 7 is further preferably about four times the diameter of the insulated electric wire 3.
根據上述構成,藉由將第1樹脂帶6及第2樹脂帶7之捲繞間距等最佳化,而可抑制高頻段之訊號傳送中之訊號衰減量之頻率特性之急遽衰減,藉此可進行高速、穩定之作動訊號傳送。According to the above configuration, by optimizing the winding pitch of the first resin tape 6 and the second resin tape 7, it is possible to suppress the rapid attenuation of the frequency characteristic of the signal attenuation amount in the signal transmission in the high frequency band. Perform high-speed, stable motion signal transmission.
1‧‧‧訊號導體1‧‧‧ Signal conductor
2‧‧‧絕緣體2‧‧‧Insulator
3‧‧‧絕緣電線3‧‧‧Insulated wires
4‧‧‧汲極線4‧‧‧汲polar line
5‧‧‧金屬箔樹脂帶5‧‧‧Metal foil resin tape
6‧‧‧第1樹脂帶6‧‧‧1st resin tape
7‧‧‧第2樹脂帶7‧‧‧2nd resin tape
10‧‧‧屏蔽電纜10‧‧‧Shielded cable
Claims (8)
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TW104208715U TWM513443U (en) | 2015-06-02 | 2015-06-02 | Two-core parallel electric wire |
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TW104208715U TWM513443U (en) | 2015-06-02 | 2015-06-02 | Two-core parallel electric wire |
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Publication Number | Publication Date |
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TWM513443U true TWM513443U (en) | 2015-12-01 |
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2015
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