TWM615785U

TWM615785U - Anti-electromagnetic wave leakage (aewl) waveguide

Info

Publication number: TWM615785U
Application number: TW110200749U
Authority: TW
Inventors: 吳家銘
Original assignee: 吳家銘
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-08-21

Abstract

本新型係關於一種抗電磁波洩漏波導管，用於配接於屏蔽牆，抗電磁波洩漏波導管包括固定板、金屬管、EMI電磁屏蔽環及緊固件；固定板包括以同心圓方式由內而外配置於接合端面的中央穿孔、環形凸起部及環形溝槽；金屬管穿經固定板與屏蔽牆且鎖緊於中央穿孔中；EMI電磁屏蔽環收容在環形溝槽中。其中，緊固件係將固定板與屏蔽牆緊密接合，而使EMI電磁屏蔽環受壓縮並夾設於屏蔽牆與固定板間。據此，本新型透過EMI電磁屏蔽環可達成優異的EMI/RFI屏蔽效果，且可省去習知技術中割除多餘鋼絲絨之步驟，而達成防止EMI/RFI洩漏、組裝簡單快速且美觀之功效。 This new model relates to an anti-electromagnetic wave leakage wave guide, which is used to be connected to a shielding wall. The anti-electromagnetic wave leakage wave guide includes a fixed plate, a metal tube, an EMI electromagnetic shielding ring and fasteners; the fixed plate includes a concentric circle from the inside to the outside The central perforation, the annular protrusion and the annular groove are arranged on the joint end surface; the metal pipe passes through the fixed plate and the shielding wall and is locked in the central perforation; the EMI electromagnetic shielding ring is accommodated in the annular groove. Among them, the fastener tightly connects the fixing plate and the shielding wall, so that the EMI electromagnetic shielding ring is compressed and clamped between the shielding wall and the fixing plate. According to this, the new type can achieve excellent EMI/RFI shielding effect through EMI electromagnetic shielding ring, and can save the step of cutting off excess steel wool in the prior art, and achieve the effects of preventing EMI/RFI leakage, simple and fast assembly, and beautiful appearance. .

Description

抗電磁波洩漏波導管 Anti-electromagnetic wave leakage waveguide

本新型係關於一種抗電磁波洩漏波導管，尤其是一種包括EMI電磁屏蔽環的抗電磁波洩漏波導管。 The present invention relates to an anti-electromagnetic wave leakage wave guide, especially an anti-electromagnetic wave leakage wave guide including an EMI electromagnetic shielding ring.

一般行動通訊晶片、無線通訊晶片、電力、電器、電動車以及其他具有發射、接收或產生無線電或射頻信號之產品的檢測，需在電磁屏蔽的環境中來測試信號發射或接收的相關特性，例如在電磁屏蔽空間中進行測試，以防止來自外部來源之電磁干擾及射頻信號影響檢測結果，同時也避免待測元件本身於檢測過程中所發射之信號影響外部電子元件之運作。 In general mobile communication chips, wireless communication chips, electricity, electrical appliances, electric vehicles and other products that emit, receive or generate radio or radio frequency signals, it is necessary to test the relevant characteristics of signal transmission or reception in an electromagnetic shielding environment, such as The test is performed in an electromagnetic shielding space to prevent electromagnetic interference and radio frequency signals from external sources from affecting the test results, and at the same time to prevent the signal emitted by the device under test itself from affecting the operation of external electronic components during the test process.

然而，一般而言，電磁屏蔽空間中必須配置可讓信號傳輸線、通風管線、液體管線等饋入的波導管。而在波導管與屏蔽牆之間的接縫處難免會有空隙，其空隙會影響電磁屏蔽的效果。目前常見的電磁屏蔽波導管多在其接縫處填塞鋼絲絨或銅網墊片以填補接縫空隙。 However, generally speaking, the electromagnetic shielding space must be equipped with wave guides that can feed signal transmission lines, ventilation lines, liquid lines, etc. There will inevitably be a gap at the joint between the waveguide and the shielding wall, and the gap will affect the electromagnetic shielding effect. At present, the common electromagnetic shielding waveguides are mostly filled with steel wool or copper mesh gaskets at the joints to fill the gaps in the joints.

請參閱圖1，圖1所示係習知之電磁屏蔽波導管1，如圖中所示，習知之電磁屏蔽波導管1之接縫處的空隙係使用鋼絲絨11填塞，而其凸出接縫之多餘鋼絲絨則是使用切割刀具12來割除。然而，欲填塞之鋼絲絨的厚薄度難以控制，而厚薄度不一時屏蔽效果將受影響，例如填塞之鋼絲絨較薄則也會有縫隙而會影響到電磁屏蔽效果。此外，使用刀具來割除鋼絲絨之步驟係相當不便，且若切割不平整則會不美觀。 Please refer to Figure 1. Figure 1 shows a conventional electromagnetic shielding wave guide 1. As shown in the figure, the gap at the joint of the conventional electromagnetic shielding wave guide 1 is filled with steel wool 11, and it protrudes from the seam The excess steel wool is cut off using the cutting tool 12. However, the thickness of the steel wool to be stuffed is difficult to control, and the shielding effect will be affected when the thickness is changed. For example, if the steel wool to be stuffed is thin, there will be gaps which will affect the electromagnetic shielding effect. In addition, the step of using a knife to cut steel wool is quite inconvenient, and if the cutting is not smooth, it will be unsightly.

本新型之主要目的係在提供一種抗電磁波洩漏波導管，包括用以填補接縫空隙的EMI電磁屏蔽環，其可有效地達到阻絕與防止電磁干擾(Electromagnetic Interference，EMI)及射頻干擾(Radio Frequency Interference，RFI)之屏蔽效果，而因其組裝過程可省去不便之填塞和切割鋼絲絨之步驟，故組裝簡便、快速，且又美觀。 The main purpose of this new model is to provide an anti-electromagnetic wave leakage waveguide, including an EMI electromagnetic shielding ring to fill the gap of the seam, which can effectively block and prevent electromagnetic interference (EMI) and radio frequency interference (Radio Frequency). Interference (RFI) shielding effect, and because the assembly process can save the inconvenient stuffing and cutting steel wool steps, the assembly is simple, fast, and beautiful.

為達成上述目的，本新型提供一種抗電磁波洩漏波導管，係用於配接於一屏蔽牆，屏蔽牆包括一中央通孔，抗電磁波洩漏波導管包括：一固定板，其包括一接合端面、一中央穿孔、一環形凸起部以及至少一環形溝槽；接合端面係用於接合至屏蔽牆，中央穿孔、環形凸起部以及至少一環形溝槽係以同心圓方式由內而外配置於接合端面，環形凸起部插設於屏蔽牆之中央通孔；一金屬管，其係穿經固定板之中央穿孔與屏蔽牆之中央通孔，且鎖緊於該固定板之中央穿孔中；至少一EMI電磁屏蔽環，其收容在固定板的至少一環形溝槽中，並局部凸露於接合端面；及複數緊固件，其係組設於固定板與屏蔽牆之間；其中，複數緊固件係將固定板與屏蔽牆緊密接合，而使至少一EMI電磁屏蔽環受壓縮並夾設於屏蔽牆與固定板之間。In order to achieve the above objective, the present invention provides an anti-electromagnetic wave leakage waveguide, which is used to be connected to a shielding wall. The shielding wall includes a central through hole. The central perforation, an annular protrusion, and at least one annular groove; the joint end surface is used for joining to the shielding wall, the central perforation, the annular protrusion, and the at least one annular groove are concentrically arranged in the joint On the end face, the annular protrusion is inserted into the central through hole of the shielding wall; a metal tube that passes through the central perforation of the fixing plate and the central through hole of the shielding wall, and is locked in the central perforation of the fixing plate; at least one EMI An electromagnetic shielding ring, which is received in at least one annular groove of the fixing plate and partially protruding from the joint end surface; and a plurality of fasteners, which are assembled between the fixing plate and the shielding wall; wherein, the plurality of fasteners The fixing plate and the shielding wall are tightly connected, so that at least one EMI electromagnetic shielding ring is compressed and sandwiched between the shielding wall and the fixing plate.

據此，本新型透過配置在屏蔽牆和固定板之間的EMI電磁屏蔽環來達成優異的EMI/RFI屏蔽效果，藉此省去習知技術中填塞鋼絲絨或銅網墊片和割除外露之多餘鋼絲絨的步驟，而達成組裝簡單、快速且美觀之功效。Accordingly, the present invention achieves an excellent EMI/RFI shielding effect through the EMI electromagnetic shielding ring arranged between the shielding wall and the fixed plate, thereby eliminating the need for filling steel wool or copper mesh gaskets and cutting the dew in the prior art. Without the steps of steel wool, the assembly is simple, fast and beautiful.

再者，本新型之複數緊固件包括複數緊固螺栓；屏蔽牆更包括複數貫穿孔，其係等距佈設於中央通孔之外側；固定板更包括複數鎖附孔，其係等距佈設於至少一環形溝槽之外側；複數緊固螺栓分別穿經屏蔽牆之複數貫穿孔而鎖附至固定板之複數鎖附孔。據此，本新型可以透過緊固螺栓直接鎖附於固定板上，來使固定板與屏蔽牆緊緊接合。Furthermore, the plurality of fasteners of the present invention include a plurality of fastening bolts; the shielding wall further includes a plurality of through holes, which are arranged equidistantly on the outer side of the central through hole; the fixing plate further includes a plurality of locking holes, which are equidistantly arranged on at least An outer side of an annular groove; a plurality of fastening bolts respectively pass through the plurality of through holes of the shielding wall and are locked to the plurality of locking holes of the fixing plate. According to this, the present invention can be directly locked to the fixing plate through the fastening bolts, so that the fixing plate and the shielding wall can be tightly joined.

此外，複數緊固件包括複數緊固螺栓及複數緊固螺帽；屏蔽牆更包括複數貫穿孔，其係等距佈設於中央通孔之外側；固定板更包括複數貫通孔，其係等距佈設於至少一環形溝槽之外側；複數緊固螺栓分別穿經屏蔽牆之複數貫穿孔及固定板之複數貫通孔，複數緊固螺栓分別螺附於複數緊固螺帽。換言之，本新型亦可透過緊固螺栓和緊固螺帽，來使固定板與屏蔽牆緊緊接合。In addition, the plurality of fasteners includes a plurality of fastening bolts and a plurality of fastening nuts; the shielding wall further includes a plurality of through holes, which are arranged equidistantly on the outer side of the central through hole; the fixing plate further includes a plurality of through holes, which are arranged equidistantly on the At least one outer side of the annular groove; the plurality of fastening bolts respectively pass through the plurality of through holes of the shielding wall and the plurality of through holes of the fixing plate, and the plurality of fastening bolts are respectively screwed to the plurality of fastening nuts. In other words, the present invention can also tightly connect the fixing plate and the shielding wall by tightening bolts and tightening nuts.

較佳的是，至少一EMI電磁屏蔽環係由一金屬絲編織網捲繞而成。再者，金屬絲編織網係由鋁、銅、銅鎳合金(Monel)、鍍錫包銅鋼(Ferrex)、鍍錫鋼或不銹鋼製成。此外，至少一EMI電磁屏蔽環之橫截面為矩形或圓形，且固定板之至少一環形溝槽之橫截面為矩形或半圓形。 Preferably, at least one EMI electromagnetic shielding ring is wound by a woven wire mesh. Furthermore, the woven wire mesh is made of aluminum, copper, copper-nickel alloy (Monel), tin-plated copper-clad steel (Ferrex), tin-plated steel or stainless steel. In addition, the cross section of at least one EMI electromagnetic shielding ring is rectangular or circular, and the cross section of at least one annular groove of the fixing plate is rectangular or semicircular.

較佳的是，至少一EMI電磁屏蔽環係一屏蔽線圈彈簧。再者，屏蔽線圈彈簧係由一鎳鈷合金、鉑銥合金或銅合金所構成。此外，屏蔽線圈彈簧包括一基材線圈及一表面鍍層，基材線圈係由銅合金、鎳合金、鈦合金或不鏽鋼合金所構成，表面鍍層係選自由錫、鎳、銀、金及鉻所組成群組中至少一者所構成。 Preferably, at least one EMI electromagnetic shielding ring is a shielding coil spring. Furthermore, the shielding coil spring is composed of a nickel-cobalt alloy, platinum-iridium alloy or copper alloy. In addition, the shielding coil spring includes a base coil and a surface coating. The base coil is composed of copper alloy, nickel alloy, titanium alloy or stainless steel alloy, and the surface coating is selected from tin, nickel, silver, gold and chromium. At least one member in the group.

較佳的是，本新型之抗電磁波洩漏波導管進一步包括二EMI電磁屏蔽環，二EMI電磁屏蔽環係為二屏蔽線圈彈簧，固定板之接合端面上包括二環形溝槽，二屏蔽線圈彈簧分別容設於二環形溝槽內；當固定板與屏蔽牆緊密接合，而二屏蔽線圈彈簧受壓縮並夾設於屏蔽牆與固定板之間時，二屏蔽線圈彈簧分別朝相反方向變形。據此，除了可達成雙重屏蔽功效外，並可設定該二屏蔽線圈彈簧朝彼此相反方向傾斜變形，以達絕佳之交互(交叉)、互補之屏蔽功效。 Preferably, the anti-electromagnetic wave leakage waveguide of the present invention further includes two EMI electromagnetic shielding rings, the two EMI electromagnetic shielding rings are two shielding coil springs, the joint end surface of the fixing plate includes two annular grooves, and the two shielding coil springs are respectively It is contained in two annular grooves; when the fixing plate and the shielding wall are tightly joined and the two shielding coil springs are compressed and sandwiched between the shielding wall and the fixing plate, the two shielding coil springs are deformed in opposite directions respectively. Accordingly, in addition to achieving a double shielding effect, the two shielding coil springs can be set to tilt and deform in opposite directions to achieve an excellent interactive (crossing) and complementary shielding effect.

本新型之抗電磁波洩漏波導管在本實施例中被詳細描述之前，要特別注意的是，以下的說明中，類似的元件將以相同的元件符號來表示。再者，本新型之圖式僅作為示意說明，其未必按比例繪製，且所有細節也未必全部呈現於圖式中。此外，本文所使用之術語「屏蔽」，一般包括EMI屏蔽及RFI屏蔽，例如阻止(或至少減少)EMI及RFI進入抗電磁波洩漏波導管內部以及自抗電磁波洩漏波導管排出。 Before the anti-electromagnetic wave leakage waveguide of the present invention is described in detail in this embodiment, it should be particularly noted that in the following description, similar components will be represented by the same component symbols. Furthermore, the drawings of the present invention are only for schematic illustration, and they are not necessarily drawn to scale, and all details may not be presented in the drawings. In addition, the term "shielding" as used herein generally includes EMI shielding and RFI shielding, such as preventing (or at least reducing) EMI and RFI from entering the inside of the anti-electromagnetic wave leakage waveguide and being discharged from the anti-electromagnetic wave leakage waveguide.

請同時參閱圖2至圖4，圖2係本新型之第一實施例的分解圖，圖3係本新型之第一實施例的剖面圖，圖4係本新型之第一實施例中的固定板之前視圖。如該等圖式中所示，本新型之第一實施例之抗電磁波洩漏波導管係用於配接於一屏蔽牆2，其挖設有一中央通孔21。本實施例之抗電磁波洩漏波導管主要包括一固定板3、一金屬管4、一EMI電磁屏蔽環5及六個緊固件6；其中，固定板3包括一接合端面31、一中央穿孔32、一環形凸起部33以及一環形溝槽34；而接合端面31係指用於接合至屏蔽牆2之端面。Please refer to FIGS. 2 to 4 at the same time. FIG. 2 is an exploded view of the first embodiment of the present invention, FIG. 3 is a cross-sectional view of the first embodiment of the present invention, and FIG. 4 is the fixing in the first embodiment of the present invention. Front view of the board. As shown in these figures, the anti-electromagnetic wave leakage waveguide of the first embodiment of the present invention is used to be connected to a shielding wall 2, and a central through hole 21 is excavated. The anti-electromagnetic wave leakage waveguide of this embodiment mainly includes a fixed plate 3, a metal tube 4, an EMI electromagnetic shielding ring 5, and six fasteners 6; wherein, the fixed plate 3 includes a joint end surface 31, a central perforation 32, An annular protrusion 33 and an annular groove 34; and the joining end surface 31 refers to the end surface for joining to the shielding wall 2.

再者，中央穿孔32、環形凸起部33以及環形溝槽34係以同心圓方式由內而外配置於接合端面31上，而環形凸起部33係可插設於屏蔽牆2之中央通孔21中。另一方面，金屬管4係穿經固定板3之中央穿孔32與屏蔽牆2之中央通孔21。其中，金屬管4之外壁設有外螺紋41，而固定板3之中央穿孔32的內壁設有內螺紋36。藉由金屬管4之外螺紋41與中央穿孔32之內螺紋36彼此螺合，可將金屬管4鎖緊於固定板3之中央穿孔32中。需要特別說明的是，環形凸起部33的設計可減少接縫數量，亦即可使金屬管4僅與環形凸起部33接觸，可避免金屬管4與屏蔽牆2之中央通孔21之間因接觸所產生的縫隙。Furthermore, the central perforation 32, the annular protrusion 33 and the annular groove 34 are concentrically arranged on the joint end surface 31 from the inside to the outside, and the annular protrusion 33 can be inserted into the central through hole of the shielding wall 2. 21 in. On the other hand, the metal pipe 4 passes through the central through hole 32 of the fixing plate 3 and the central through hole 21 of the shielding wall 2. Wherein, the outer wall of the metal tube 4 is provided with an external thread 41, and the inner wall of the central perforation 32 of the fixing plate 3 is provided with an internal thread 36. By screwing the outer thread 41 of the metal tube 4 and the inner thread 36 of the central through hole 32 to each other, the metal tube 4 can be locked in the central through hole 32 of the fixing plate 3. It should be noted that the design of the annular protrusion 33 can reduce the number of joints, that is, the metal pipe 4 can only contact the annular protrusion 33, which can avoid the metal pipe 4 and the central through hole 21 of the shielding wall 2. The gap caused by contact.

此外，本實施例之EMI電磁屏蔽環5係收容在固定板3的環形溝槽34中，在固定板3尚未接合至屏蔽牆2時，EMI電磁屏蔽環5局部凸露於接合端面31；而當固定板3接合至屏蔽牆2時，EMI電磁屏蔽環5將受到擠壓變形，將可完全填塞於環形溝槽34內，進而完全封閉固定板3和屏蔽牆2之間的接縫，也就是達成電磁屏蔽的效果。In addition, the EMI electromagnetic shielding ring 5 of this embodiment is accommodated in the annular groove 34 of the fixing plate 3. When the fixing plate 3 is not yet joined to the shielding wall 2, the EMI electromagnetic shielding ring 5 partially protrudes from the joint end surface 31; and When the fixing plate 3 is joined to the shielding wall 2, the EMI electromagnetic shielding ring 5 will be squeezed and deformed so that it can be completely filled in the annular groove 34, thereby completely closing the seam between the fixing plate 3 and the shielding wall 2. It is to achieve the effect of electromagnetic shielding.

再且，本實施例之緊固件6係組設於固定板3與屏蔽牆2之間，亦即緊固件6係用於將固定板3與屏蔽牆2緊密接合，而使EMI電磁屏蔽環5受壓縮並夾設於屏蔽牆2與固定板3之間。然而，本新型即藉由上述裝置之緊密接合，可有效地達到電磁干擾及射頻干擾之屏蔽效果。Moreover, the fastener 6 of this embodiment is assembled between the fixing plate 3 and the shielding wall 2, that is, the fastener 6 is used to tightly connect the fixing plate 3 and the shielding wall 2 to make the EMI electromagnetic shielding ring 5 It is compressed and sandwiched between the shielding wall 2 and the fixing plate 3. However, the present invention can effectively achieve the shielding effect of electromagnetic interference and radio frequency interference through the close connection of the above-mentioned devices.

其中，在本實施例中的相關結構參數羅列如下：固定板3之環形溝槽34的寬度係3 mm至8mm之間，較佳係5mm，深度為1 mm至6mm之間，較佳係5mm；固定板3之環形凸起部33相對於第一端面的高度係4 mm至10mm之間，較佳係6mm。Among them, the relevant structural parameters in this embodiment are listed as follows: the width of the annular groove 34 of the fixed plate 3 is between 3 mm and 8 mm, preferably 5 mm, and the depth is between 1 mm and 6 mm, preferably 5 mm The height of the annular protrusion 33 of the fixed plate 3 relative to the first end surface is between 4 mm and 10 mm, preferably 6 mm.

此外，本實施例之緊固件6包括六個緊固螺栓61，而屏蔽牆2同樣包括六個貫穿孔22，其係等距佈設於中央通孔21之外側。而且，固定板3亦包括六個鎖附孔35，其係等距佈設於環形溝槽34之外側，其中，鎖附孔35之內壁設有螺紋。因此，本實施例可藉由緊固螺栓61分別穿經屏蔽牆2之貫穿孔22而直接鎖附至固定板3之鎖附孔35，進而達成固定板3與屏蔽牆2之緊密接合。In addition, the fastener 6 of this embodiment includes six fastening bolts 61, and the shielding wall 2 also includes six through holes 22, which are arranged on the outer side of the central through hole 21 at equal intervals. Moreover, the fixing plate 3 also includes six locking holes 35, which are arranged equidistantly on the outer side of the annular groove 34, wherein the inner wall of the locking hole 35 is provided with threads. Therefore, in this embodiment, the fastening bolts 61 can be directly locked to the locking holes 35 of the fixing plate 3 by passing through the through holes 22 of the shielding wall 2 respectively, so as to achieve a tight joint between the fixing plate 3 and the shielding wall 2.

另一方面，本實施例之EMI電磁屏蔽環5可由一金屬絲編織網捲繞而成。該金屬絲編織網可由鋁絲、銅絲、銅鎳合金(Monel)絲、鍍錫包銅鋼(Ferrex)絲、鍍錫鋼絲或不銹鋼絲編織而成，上述材質皆具備優異之電磁屏蔽特性。On the other hand, the EMI electromagnetic shielding ring 5 of this embodiment can be wound by a woven wire mesh. The woven metal wire mesh can be woven from aluminum wire, copper wire, copper-nickel alloy (Monel) wire, tin-plated copper steel (Ferrex) wire, tin-plated steel wire or stainless steel wire, all of which have excellent electromagnetic shielding properties.

進一步說明，在測試頻率為100kHz時，鋁製的金屬絲編織網的屏蔽效率為60dB，鍍錫包銅鋼(Ferrex)製的為80dB以上，銅鎳合金(Monel)製的則為60dB以上。在測試頻率為10MHz時，鋁製的金屬絲編織網的屏蔽效率為130dB，鍍錫包銅鋼(Ferrex)製的為130dB以上，銅鎳合金(Monel)製的則為130dB。在測試頻率1GHz時，鋁製的金屬絲編織網的屏蔽效率為90dB，鍍錫包銅鋼(Ferrex)製的為105dB，銅鎳合金(Monel)製的則為90dB。在測試頻率10GHz時，鋁製的金屬絲編織網的屏蔽效率為80dB，鍍錫包銅鋼(Ferrex)製的為95dB，銅鎳合金(Monel)製的則為80dB。To further illustrate, when the test frequency is 100kHz, the shielding efficiency of the aluminum woven wire mesh is 60dB, the tinned copper-clad steel (Ferrex) is 80dB or more, and the copper-nickel alloy (Monel) is 60dB or more. When the test frequency is 10MHz, the shielding efficiency of the aluminum woven wire mesh is 130dB, the tinned copper-clad steel (Ferrex) is 130dB or more, and the copper-nickel alloy (Monel) is 130dB. When the test frequency is 1GHz, the shielding efficiency of the aluminum woven wire mesh is 90dB, the tinned copper-clad steel (Ferrex) is 105dB, and the copper-nickel alloy (Monel) is 90dB. When the test frequency is 10GHz, the shielding efficiency of the aluminum woven wire mesh is 80dB, the tinned copper-clad steel (Ferrex) is 95dB, and the copper-nickel alloy (Monel) is 80dB.

請參閱圖5，其係本新型之第二實施例的剖面圖，第二實施例與第一實施例之主要差異在於，本實施例之緊固件6進一步利用緊固螺栓61及緊固螺帽62。進言之，本實施例之緊固件6包括六個緊固螺栓61及六個緊固螺帽62，而屏蔽牆2更包括六個貫穿孔22，其係等距佈設於中央通孔21之外側；且固定板3更包括六個貫通孔37，其係等距佈設於環形溝槽34之外側，其中，貫通孔37之內壁不具有螺紋。其中，每一緊固螺栓61各自穿經屏蔽牆2之貫穿孔22及固定板3之貫通孔37，並分別螺附於緊固螺帽62。據此，本實施例提供了利用螺帽之另一種緊固方式，其有別於第一實施例直接鎖附於固定板3之方式。Please refer to FIG. 5, which is a cross-sectional view of the second embodiment of the present invention. The main difference between the second embodiment and the first embodiment is that the fastener 6 of this embodiment further uses a fastening bolt 61 and a fastening nut 62. In other words, the fastener 6 of this embodiment includes six fastening bolts 61 and six fastening nuts 62, and the shielding wall 2 further includes six through holes 22, which are arranged equidistantly outside the central through hole 21; In addition, the fixing plate 3 further includes six through holes 37, which are arranged equidistantly on the outer side of the annular groove 34, wherein the inner wall of the through hole 37 does not have threads. Wherein, each fastening bolt 61 passes through the through hole 22 of the shielding wall 2 and the through hole 37 of the fixing plate 3 respectively, and is screwed to the fastening nut 62 respectively. Accordingly, this embodiment provides another fastening method using a nut, which is different from the method of directly locking the fixing plate 3 in the first embodiment.

請參閱圖6A及圖6B，圖6A係本新型之第三實施例中EMI電磁屏蔽環及環形溝槽之剖面圖，圖6B係本新型之第四實施例中EMI電磁屏蔽環及環形溝槽之剖面圖。藉由圖6A及圖6B可說明，EMI電磁屏蔽環5之橫截面除圓形外還可為矩形，而固定板3之環形溝槽34之橫截面除矩形外還可為半圓形。圖6A所示之EMI電磁屏蔽環5之橫截面為圓形，其可搭配橫截面為半圓形之環形溝槽34。圖6B所示之EMI電磁屏蔽環5之橫截面為矩形，而其可搭配橫截面為矩形之環形溝槽34。Please refer to FIGS. 6A and 6B. FIG. 6A is a cross-sectional view of the EMI electromagnetic shielding ring and the annular groove in the third embodiment of the present invention, and FIG. 6B is the EMI electromagnetic shielding ring and the annular groove in the fourth embodiment of the present invention.的sectional view. As shown in FIGS. 6A and 6B, the cross section of the EMI electromagnetic shielding ring 5 can be rectangular in addition to the circle, and the cross section of the annular groove 34 of the fixing plate 3 can be semicircular in addition to the rectangle. The EMI electromagnetic shielding ring 5 shown in FIG. 6A has a circular cross section, and it can be used with an annular groove 34 with a semicircular cross section. The EMI electromagnetic shielding ring 5 shown in FIG. 6B has a rectangular cross section, and it can be used with an annular groove 34 with a rectangular cross section.

請參閱圖7，其係本新型之第五實施例中的固定板之前視圖；本實施例與前述實施例主要差異在於，本實施例所採用之EMI電磁屏蔽環係一屏蔽線圈彈簧51，其可由一鎳鈷合金、鉑銥合金或銅合金所構成；另一方面，屏蔽線圈彈簧51亦可包括一基材線圈及一表面鍍層，基材線圈可由銅合金、鎳合金、鈦合金或不鏽鋼合金所構成，而表面鍍層則可為錫、鎳、銀、金或鉻。Please refer to FIG. 7, which is a front view of the fixing plate in the fifth embodiment of the present invention; the main difference between this embodiment and the previous embodiment is that the EMI electromagnetic shielding ring used in this embodiment is a shielding coil spring 51, which It can be composed of a nickel-cobalt alloy, platinum-iridium alloy or copper alloy; on the other hand, the shielding coil spring 51 can also include a base coil and a surface coating. The base coil can be made of copper alloy, nickel alloy, titanium alloy or stainless steel alloy. The surface coating can be tin, nickel, silver, gold or chromium.

事實上，不同材質之組合針對不同頻段之射頻頻率各有不同的屏蔽效果呈現，其中表面鍍層之材質選用所產生的影響程度更甚於基材線圈之材質。In fact, the combination of different materials has different shielding effects for different frequency bands of radio frequency. The choice of surface coating material has a greater degree of influence than the material of the base coil.

舉例說明，屏蔽線圈彈簧51若單純由鈹銅合金組成，當其面對頻率如1.5GHz至2.5GHz或3.0GHz至10.0GHz之射頻頻率時屏蔽表現平平(約95%)，而其餘頻段則表現的令人相當滿意(約99%)；至於，鈹銅合金表面鍍鎳和鍍銀，二者屏蔽表現都相當優異，其中採用鈹銅合金表面鍍鎳之屏蔽線圈彈簧51於頻段350MHz至1000MHz之屏蔽表現特別突出，可達100%，而鈹銅合金表面鍍銀則於3.0GHz至10.0GHz之高頻段表現特別突出，亦近乎100%；另一方面，如果單純採用不鏽鋼合金(如BSE1)，其屏蔽表現則差強人意，約70%至85%左右；至於若採用不鏽鋼合金表面鍍銀之各頻段的屏蔽表現都表現不俗，約97%至99%。 For example, if the shielding coil spring 51 is purely composed of beryllium copper alloy, the shielding performance is flat (about 95%) when it faces the radio frequency of 1.5GHz to 2.5GHz or 3.0GHz to 10.0GHz, while the performance of the other frequency bands Is quite satisfactory (about 99%); As for the beryllium copper alloy surface nickel-plated and silver-plated, both have excellent shielding performance. Among them, the shield coil spring 51 with nickel-plated beryllium copper alloy surface is used in the frequency range of 350MHz to 1000MHz. The shielding performance is particularly outstanding, up to 100%, while the silver-plated beryllium copper alloy surface is particularly outstanding in the high frequency range from 3.0GHz to 10.0GHz, which is close to 100%; on the other hand, if stainless steel alloys (such as BSE1) are used, The shielding performance is not satisfactory, about 70% to 85%; as for the shielding performance of each frequency band if the stainless steel alloy surface is plated with silver, the shielding performance is good, about 97% to 99%.

請參閱圖8，其係本新型之第六實施例中的固定板之前視圖。本實施例與前述第五實施例的主要差異在於，本實施例採用雙重屏蔽手段，以達絕佳之屏蔽效果。進一步說明，本實施例之抗電磁波洩漏波導管進一步包括二EMI電磁屏蔽環5，該二EMI電磁屏蔽環5係為二屏蔽線圈彈簧51，該固定板3之該接合端面31上包括二環形溝槽34，該二屏蔽線圈彈簧51分別容設於該二環形溝槽34內；當該固定板3與該屏蔽牆2緊密接合，而該二屏蔽線圈彈簧51受壓縮並夾設於該屏蔽牆2與該固定板3之間時，該二屏蔽線圈彈簧51分別朝相反方向變形。 Please refer to FIG. 8, which is a front view of the fixing plate in the sixth embodiment of the present invention. The main difference between this embodiment and the foregoing fifth embodiment is that this embodiment adopts a double shielding method to achieve an excellent shielding effect. To further illustrate, the anti-electromagnetic wave leakage waveguide of this embodiment further includes two EMI electromagnetic shielding rings 5, the two EMI electromagnetic shielding rings 5 are two shielding coil springs 51, and the joint end surface 31 of the fixing plate 3 includes two annular grooves. Slot 34, the two shielding coil springs 51 are respectively accommodated in the two annular grooves 34; when the fixing plate 3 and the shielding wall 2 are tightly joined, and the two shielding coil springs 51 are compressed and sandwiched on the shielding wall 2 and the fixed plate 3, the two shield coil springs 51 deform in opposite directions, respectively.

據此，本實施例特別設計二屏蔽線圈彈簧51分別朝相反方向變形之雙重屏蔽效果，藉以達成互補，消弭線圈彈簧因受擠壓變形時可能存在之縫隙，達到絕佳的屏蔽效果。此外，在本實施例中，在內部的屏蔽線圈彈簧51及在外部的屏蔽線圈彈簧51可因應不同需求，而變更基材線圈及表面鍍層之材質。舉例說明，可以針對不同頻段的屏蔽需求，而根據前段所述不同材質所呈現不同的屏蔽效果，來設計在內部的屏蔽線圈彈簧51及在外部的屏蔽線圈彈簧51。 Accordingly, this embodiment specifically designs a dual shielding effect in which the two shielding coil springs 51 deform in opposite directions respectively, so as to achieve complementarity, eliminate possible gaps when the coil springs are deformed by compression, and achieve an excellent shielding effect. In addition, in this embodiment, the inner shield coil spring 51 and the outer shield coil spring 51 can change the material of the base coil and the surface coating according to different requirements. For example, according to the shielding requirements of different frequency bands, the inner shielding coil spring 51 and the outer shielding coil spring 51 can be designed according to the different shielding effects presented by the different materials described in the previous paragraph.

上述實施例僅係為了方便說明而舉例而已，本新型所主張之權利範圍自應以申請專利範圍所述為準，而非僅限於上述實施例。The above-mentioned embodiments are merely examples for the convenience of description, and the scope of rights claimed in the present model should be subject to the scope of the patent application, rather than being limited to the above-mentioned embodiments.

1:習知之電磁屏蔽波導管 11:鋼絲絨 12:切割刀具 2:屏蔽牆 21:中央通孔 22:貫穿孔 3:固定板 31:接合端面 32:中央穿孔 33:環形凸起部 34:環形溝槽 35:鎖附孔 36:內螺紋 37:貫通孔 4:金屬管 41:外螺紋 5:EMI電磁屏蔽環 51:屏蔽線圈彈簧 6:緊固件 61:緊固螺栓 62:緊固螺帽 1: Conventional electromagnetic shielding waveguide 11: Steel wool 12: Cutting tool 2: shielding wall 21: Central through hole 22: Through hole 3: fixed plate 31: Joint end face 32: central perforation 33: Annular protrusion 34: Annular groove 35: lock hole 36: internal thread 37: Through hole 4: Metal tube 41: External thread 5: EMI electromagnetic shielding ring 51: Shield coil spring 6: Fasteners 61: Fastening bolt 62: Fastening nut

圖1係習知之電磁屏蔽波導管的剖面圖。 Figure 1 is a cross-sectional view of a conventional electromagnetic shielding waveguide.

圖2係本新型之第一實施例的分解圖。 Figure 2 is an exploded view of the first embodiment of the present invention.

圖3係本新型之第一實施例的剖面圖。 Figure 3 is a cross-sectional view of the first embodiment of the present invention.

圖4係本新型之第一實施例的固定板之前視圖。 Fig. 4 is a front view of the fixing plate of the first embodiment of the present invention.

圖5係本新型之第二實施例的剖面圖。 Figure 5 is a cross-sectional view of the second embodiment of the present invention.

圖6A係本新型之第三實施例中EMI電磁屏蔽環及環形溝槽之剖面圖。 6A is a cross-sectional view of the EMI electromagnetic shielding ring and the annular groove in the third embodiment of the present invention.

圖6B係本新型之第四實施例中EMI電磁屏蔽環及環形溝槽之剖面圖。 Fig. 6B is a cross-sectional view of the EMI electromagnetic shielding ring and the annular groove in the fourth embodiment of the present invention.

圖7係本新型之第五實施例中的固定板之前視圖。 Fig. 7 is a front view of the fixing plate in the fifth embodiment of the present invention.

圖8係本新型之第六實施例中的固定板之前視圖。 Fig. 8 is a front view of the fixing plate in the sixth embodiment of the present invention.

2:屏蔽牆 2: shielding wall

21:中央通孔 21: Central through hole

22:貫穿孔 22: Through hole

3:固定板 3: fixed plate

31:接合端面 31: Joint end face

32:中央穿孔 32: central perforation

33:環形凸起部 33: Annular protrusion

34:環形溝槽 34: Annular groove

35:鎖附孔 35: lock hole

36:內螺紋 36: internal thread

4:金屬管 4: Metal tube

41:外螺紋 41: External thread

5:EMI電磁屏蔽環 5: EMI electromagnetic shielding ring

6:緊固件 6: Fasteners

61:緊固螺栓 61: Fastening bolt

Claims

一種抗電磁波洩漏波導管，係用於配接於一屏蔽牆，該屏蔽牆包括一中央通孔，該抗電磁波洩漏波導管包括：一固定板，其包括一接合端面、一中央穿孔、一環形凸起部以及至少一環形溝槽；該接合端面係用於接合至該屏蔽牆，該中央穿孔、該環形凸起部以及該至少一環形溝槽係以同心圓方式由內而外配置於該接合端面，該環形凸起部插設於該屏蔽牆之該中央通孔；一金屬管，其係穿經該固定板之該中央穿孔與該屏蔽牆之該中央通孔，且鎖緊於該固定板之該中央穿孔中；至少一EMI電磁屏蔽環，其收容在該固定板的該至少一環形溝槽中，並局部凸露於該接合端面；及複數緊固件，其係組設於該固定板與該屏蔽牆之間；其中，該複數緊固件係將該固定板與該屏蔽牆緊密接合，而使該至少一EMI電磁屏蔽環受壓縮並夾設於該屏蔽牆與該固定板之間。 An anti-electromagnetic wave leakage wave guide is used to fit a shielding wall. The shielding wall includes a central through hole. The anti-electromagnetic wave leakage wave guide includes: a fixed plate, which includes a joint end surface, a central perforation, and an annular convex A raised portion and at least one annular groove; the joint end surface is used for joining to the shielding wall, the central perforation, the annular protrusion and the at least one annular groove are concentrically arranged in the joint from the inside to the outside On the end face, the annular protrusion is inserted into the central through hole of the shielding wall; a metal pipe passes through the central perforation of the fixing plate and the central through hole of the shielding wall, and is locked to the central through hole of the fixing plate In the central perforation; at least one EMI electromagnetic shielding ring, which is received in the at least one annular groove of the fixing plate and partially protruding from the joint end surface; and a plurality of fasteners, which are assembled on the fixing plate and Between the shielding walls; wherein the plurality of fasteners tightly join the fixing plate and the shielding wall, so that the at least one EMI electromagnetic shielding ring is compressed and sandwiched between the shielding wall and the fixing plate.

如請求項1之抗電磁波洩漏波導管，其中，該複數緊固件包括複數緊固螺栓；該屏蔽牆更包括複數貫穿孔，其係等距佈設於該中央通孔之外側；該固定板更包括複數鎖附孔，其係等距佈設於該至少一環形溝槽之外側；該複數緊固螺栓分別穿經該屏蔽牆之複數貫穿孔而鎖附至該固定板之該複數鎖附孔。 For example, the anti-electromagnetic wave leakage waveguide of claim 1, wherein the plurality of fasteners include a plurality of fastening bolts; the shielding wall further includes a plurality of through holes, which are arranged equidistantly outside the central through hole; the fixing plate further includes a plurality of through holes The locking holes are arranged equidistantly on the outer side of the at least one annular groove; the plurality of fastening bolts respectively pass through the plurality of through holes of the shielding wall and are locked to the plurality of locking holes of the fixing plate.

如請求項1之抗電磁波洩漏波導管，其中，該複數緊固件包括複數緊固螺栓及複數緊固螺帽；該屏蔽牆更包括複數貫穿孔，其係等距佈設於該中央通孔之外側；該固定板更包括複數貫通孔，其係等距佈設於該至少一環形溝槽之外側；該複數緊固螺栓分別穿經該屏蔽牆之該複數貫穿孔及該固定板之該複數貫通孔，該複數緊固螺栓分別螺附於該複數緊固螺帽。 For example, the anti-electromagnetic wave leakage waveguide of claim 1, wherein the plurality of fasteners includes a plurality of fastening bolts and a plurality of fastening nuts; the shielding wall further includes a plurality of through holes, which are arranged equidistantly outside the central through hole; The fixing plate further includes a plurality of through holes, which are arranged equidistantly on the outer side of the at least one annular groove; the plurality of fastening bolts respectively pass through the plurality of through holes of the shielding wall and the plurality of through holes of the fixing plate, The plurality of fastening bolts are respectively screwed on the plurality of fastening nuts.

如請求項1之抗電磁波洩漏波導管，其中，該至少一EMI電磁屏蔽環係由一金屬絲編織網捲繞而成。 For example, the anti-electromagnetic wave leakage waveguide of claim 1, wherein the at least one EMI electromagnetic shielding ring is wound by a woven wire mesh.

如請求項4之抗電磁波洩漏波導管，其中該金屬絲編織網係由鋁、銅、銅鎳合金(Monel)、鍍錫包銅鋼(Ferrex)、鍍錫鋼或不銹鋼製成。 For example, the anti-electromagnetic wave leakage waveguide of claim 4, wherein the woven wire mesh is made of aluminum, copper, copper-nickel alloy (Monel), tin-plated copper-clad steel (Ferrex), tin-plated steel or stainless steel.

如請求項4之抗電磁波洩漏波導管，其中，該至少一EMI電磁屏蔽環之橫截面為矩形或圓形，且該固定板之該至少一環形溝槽之橫截面為矩形或半圓形。 The anti-electromagnetic wave leakage waveguide of claim 4, wherein the cross section of the at least one EMI electromagnetic shielding ring is rectangular or circular, and the cross section of the at least one annular groove of the fixing plate is rectangular or semicircular.

如請求項1之抗電磁波洩漏波導管，其中該至少一EMI電磁屏蔽環係一屏蔽線圈彈簧。 Such as the anti-electromagnetic wave leakage waveguide of claim 1, wherein the at least one EMI electromagnetic shielding ring is a shielding coil spring.

如請求項7之抗電磁波洩漏波導管，其中該屏蔽線圈彈簧係由一鎳鈷合金、鉑銥合金或銅合金所構成。 Such as the anti-electromagnetic wave leakage waveguide of claim 7, wherein the shielding coil spring is composed of a nickel-cobalt alloy, platinum-iridium alloy or copper alloy.

如請求項7之抗電磁波洩漏波導管，其中該屏蔽線圈彈簧包括一基材線圈及一表面鍍層，該基材線圈係由銅合金、鎳合金、鈦合金或不鏽鋼合金所構成，該表面鍍層係選自由錫、鎳、銀、金及鉻所組成群組中至少一者所構成。 Such as the anti-electromagnetic wave leakage waveguide of claim 7, wherein the shielding coil spring includes a base material coil and a surface coating, and the base material coil is made of copper alloy, nickel alloy, titanium alloy or stainless steel alloy The surface plating layer is composed of at least one selected from the group consisting of tin, nickel, silver, gold and chromium.

如請求項1之抗電磁波洩漏波導管，其進一步包括二EMI電磁屏蔽環，該二EMI電磁屏蔽環係為二屏蔽線圈彈簧，該固定板之該接合端面上包括二環形溝槽，該二屏蔽線圈彈簧分別容設於該二環形溝槽內；當該固定板與該屏蔽牆緊密接合，而該二屏蔽線圈彈簧受壓縮並夾設於該屏蔽牆與該固定板之間時，該二屏蔽線圈彈簧分別朝相反方向變形。 For example, the anti-electromagnetic wave leakage waveguide of claim 1, which further includes two EMI electromagnetic shielding rings, the two EMI electromagnetic shielding rings are two shielding coil springs, the joint end surface of the fixing plate includes two annular grooves, and the two shields The coil springs are respectively accommodated in the two annular grooves; when the fixing plate and the shielding wall are tightly joined, and the two shielding coil springs are compressed and sandwiched between the shielding wall and the fixing plate, the two shielding The coil springs are deformed in opposite directions, respectively.