JP2005203290A - Small-sized relay - Google Patents

Small-sized relay Download PDF

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Publication number
JP2005203290A
JP2005203290A JP2004010064A JP2004010064A JP2005203290A JP 2005203290 A JP2005203290 A JP 2005203290A JP 2004010064 A JP2004010064 A JP 2004010064A JP 2004010064 A JP2004010064 A JP 2004010064A JP 2005203290 A JP2005203290 A JP 2005203290A
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Prior art keywords
relay
small
base
case
dust
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JP2004010064A
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Japanese (ja)
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Jun Harasawa
潤 原澤
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Daiichi Electric Co Ltd
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Daiichi Electric Co Ltd
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Priority to JP2004010064A priority Critical patent/JP2005203290A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a small-sized relay in which invasion of water, trash, dust or the like from an air hole or a gap existing at a case or a base of the small-sized relay is prevented, and only air circulation is made possible. <P>SOLUTION: An optional place of the base 2 or the case 11 of the small-sized relay 1 is opened, a waterproof sheet 18 composed of polytetrafluoroethylene resin or the like is adhered to the opening part 13, and the small-sized relay which can do only ventilation into the inside of the relay by the waterproof sheet 18 is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、小型リレーに関するものであり、特に、リレー内部への通気性は充分に維持され、且つ、水、ごみ或いはほこり等の侵入を防止することができるように形成された小型リレーに関するものである。   The present invention relates to a small relay, and more particularly to a small relay formed so that air permeability into the relay is sufficiently maintained and water, dust, dust, or the like can be prevented from entering. It is.

従来、此種小型リレーはオープンタイプと密閉タイプの２種類が存在する。而もオープンタイプ及び密閉タイプの各小型リレーに関する特許文献等は極めて多数存在し、枚挙にいとまがない。   Conventionally, there are two types of this type of small relay, an open type and a sealed type. There are quite a large number of patent documents and the like regarding open type and sealed type small relays.

即ち、之等オープンタイプ及び密閉タイプの何れもその内部機構は、中心部にコアを嵌挿したボビンにコイルを巻装し、且つ、該コイルの側面にヨークを配設すると共に、該ヨークの一端部にＬ字状に折曲したアマチュアを回動自在に支承し、該コイルに通電すれば該アマチュアが前記コアに吸着されて回動し、カードを介して可動接片を押圧し、該可動接片の可動接点が固定接片の固定接点に接触し、又は前記コイルに対する通電オフによって該可動接点が該固定接点よりオフして接触離間自在に形成されたリレー回路から成るものである。而も例えば特許文献１に開示されているように、前記内部機構は合成樹脂によって形成されたベース上に配設され、且つ、ケースを之等内部機構上面に被装し、そして、該ケースの下端部を前記ベースの周縁部上面に載置すると共に、該ベースに設けた小突片を該ケースに開穿した小孔に嵌挿して、該ケースの抜け止めを為していた。
特開２０００−１９５４０５（図１） That is, in both the open type and the sealed type, the internal mechanism is such that a coil is wound around a bobbin having a core inserted in the center, and a yoke is disposed on the side surface of the coil. An armature bent in an L-shape is rotatably supported at one end, and when the coil is energized, the armature is attracted to the core and rotated, and the movable contact piece is pressed via a card, The movable contact of the movable contact is in contact with the fixed contact of the fixed contact, or the relay is formed so that the movable contact is turned off from the fixed contact when the coil is energized to be separated from the fixed contact. For example, as disclosed in Patent Document 1, the internal mechanism is disposed on a base formed of a synthetic resin, and a case is mounted on the upper surface of the internal mechanism. The lower end portion was placed on the upper surface of the peripheral edge of the base, and a small protrusion provided on the base was fitted into a small hole opened in the case to prevent the case from coming off.
JP 2000-195405 (FIG. 1)

従来の小型リレーは上述したようにオープンタイプと密閉タイプがあるが、オープンタイプはケース又はベースに空気を流通させるための空気穴が設けられているものや、或いはケースとベースとの嵌合部に僅かの隙間が存在するもの等から成るのであるが、之等空気穴或いは隙間から侵水したり、ごみ、ほこり等が侵入する等の問題があった。   As described above, the conventional small relay has an open type and a sealed type. The open type has an air hole for circulating air in the case or the base, or a fitting portion between the case and the base. However, there are problems such as infiltration from air holes or gaps, and intrusion of dust, dust, and the like.

一方、密閉タイプは、水、ごみ、ほこり等の侵入は防止できるが、リレー内部への空気流通が遮断され、そのため、接点が溶着してリレーとしての開閉寿命が低下する等の問題が生じていた。   On the other hand, the sealed type can prevent intrusion of water, dust, dust, etc., but air flow to the inside of the relay is interrupted, which causes problems such as the contact welding and the switching life of the relay being reduced. It was.

そこで、水、ごみ、ほこり等の侵入を防止すると共に、空気流通を可能にするために解決せられるべき技術的課題が生じてくるのであり、本発明は該課題を解決することを目的とする。   Then, while preventing intrusion of water, dust, dust and the like, there arises a technical problem to be solved in order to enable air circulation, and the present invention aims to solve the problem. .

本発明は上記目的を達成するために提案されたものであり、請求項１記載の発明は小型リレーのベース又はケースの任意の個所を開口し、該開口部に四弗化エチレン樹脂等から成る防水シートを接着し、該防水シートにてリレー内部への通気のみを可能とした小型リレーを提供するものである。   The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 opens any part of the base or case of the small relay, and the opening is made of tetrafluoroethylene resin or the like. It is an object of the present invention to provide a small relay in which a waterproof sheet is bonded and the waterproof sheet allows only ventilation into the relay.

又、請求項２記載の発明は、上記防水シートは上記ベース又はケースに設けた開口部の周辺部に熱溶着の手段で溶着されている小型リレーを提供するものである。   According to a second aspect of the present invention, there is provided a small relay in which the waterproof sheet is welded to a peripheral portion of an opening provided in the base or the case by means of heat welding.

更に又、請求項３記載の発明は上記ベース又はケースに設けられた開口部は中心部に小孔が開穿され、該小孔の周辺部に空気溜り凹部が設けられ、更に、該空気溜り凹部の周辺部を***させ、該***部の外辺部に環状凹部が設けられ、該環状凹部及び前記***部上面に上記シートが熱溶着の手段で溶着され、且つ、該シートの周辺部に接着剤を盛って接着される小型リレーを提供するものである。   Furthermore, in the invention described in claim 3, the opening provided in the base or case has a small hole in the center, an air reservoir recess is provided in the periphery of the small hole, and the air reservoir is further provided. A peripheral part of the concave part is raised, an annular concave part is provided on the outer side part of the convex part, and the sheet is welded to the annular concave part and the upper surface of the raised part by means of heat welding, and on the peripheral part of the sheet The present invention provides a small relay that is bonded with an adhesive.

請求項１記載の発明は、小型リレーのベース又はケースの任意の個所を開口し、該開口部に四弗化エチレン樹脂等から成る防水シートを包着し、該防水シートにてリレー内部への通気のみを可能としたので、該リレー内部へは水、ごみ、ほこり等は侵入せず、通気のみが可能であり、従って、リレー内部が汚染されることなく、且つ、接点同志が溶着してリレーの寿命を低下させると云うことはなくなる。   According to the first aspect of the present invention, an arbitrary portion of the base or case of the small relay is opened, and a waterproof sheet made of ethylene tetrafluoride resin or the like is enclosed in the opening, and the inside of the relay is formed by the waterproof sheet. Since only ventilation is possible, water, dust, dust, etc. do not enter the relay, and only ventilation is possible. Therefore, the relay is not contaminated and the contacts are welded together. It will no longer reduce the life of the relay.

又、請求項２記載の発明は、上記防水シートは熱溶着の手段で前記開口部周辺部に溶着されるので、上記請求項１記載の発明の効果に加え、容易迅速且つ、確実に該防水シートの周囲が該開口部周辺部に強固に接着されることができ、不慮剥離するようなことがなくなる。   In the invention described in claim 2, since the waterproof sheet is welded to the periphery of the opening by means of heat welding, in addition to the effect of the invention described in claim 1, the waterproof sheet can be easily, quickly and reliably. The periphery of the sheet can be firmly adhered to the periphery of the opening, and there is no possibility of accidental peeling.

更に、請求項３記載の発明は、開口部中心部の小孔の周辺部に空気溜り凹部が設けられ、該空気溜り凹部の周辺部を***させ、該***部の外辺部に更に環状凹部が設けられ、該環状凹部及び前記***部上面に上記防水シートを熱溶着し、更に又、該防水シートの周辺部に接着剤を盛って接着して成るので、請求項１又は２記載の発明の効果に加えて、空気流通の確実性が確保されると共に防水シートが開口部周辺部に確実に接着され、水、ごみ、ほこり等の侵入防止効果を一層助成することができる。   Further, in the invention according to claim 3, an air reservoir recess is provided in the peripheral portion of the small hole at the center of the opening, the peripheral portion of the air reservoir recess is raised, and an annular recess is further formed on the outer side of the protrusion. 3. The invention according to claim 1, wherein the waterproof sheet is thermally welded to the upper surface of the annular recess and the raised portion, and further, an adhesive is deposited on the periphery of the waterproof sheet. In addition to the above effects, the reliability of air circulation is ensured, and the waterproof sheet is securely bonded to the periphery of the opening, thereby further aiding invasion prevention effects such as water, dust, and dust.

本発明は小型リレー内部への侵水を防止し、且つ、ごみ、ほこり等の侵入を防ぐための機能を、ケース又はベースに開口部を設け、該開口部に通気性のみが許容された防水シートを装着することによって実現した。   The present invention provides a function for preventing water from entering a small relay and preventing intrusion of dust, dust, etc., with a case or base provided with an opening, and the opening is waterproof with only air permeability allowed. Realized by mounting the seat.

以下、本発明の一実施例を図１乃至図４に従って詳述する。図１は本発明の小型リレー１を示し、その平面図であり、図２は内部機構を示す側面図、図３は図１の底面図、図４は図２の円部分の拡大縦断面図である。図２に於いて、該小型リレー１は合成樹脂等にて成形されたベース２上の一側部に、中心部にコア３を嵌挿したボビン４を配設して、該ボビン４にコイル５を巻装し、且つ、該コイル５の側面にヨーク６を配設し、該ヨーク６の下端部にＬ字状に折曲して成るアマチュアが回動自在に支承されている。   Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 is a plan view of a small relay 1 according to the present invention, FIG. 2 is a side view showing an internal mechanism, FIG. 3 is a bottom view of FIG. 1, and FIG. 4 is an enlarged longitudinal sectional view of a circle portion of FIG. It is. In FIG. 2, the small relay 1 is provided with a bobbin 4 having a core 3 inserted into a central part thereof on one side of a base 2 formed of synthetic resin or the like. 5, a yoke 6 is disposed on the side surface of the coil 5, and an armature formed by bending the yoke 6 into an L shape is rotatably supported at the lower end of the yoke 6.

更に、該アマチュア７の先端部にカード８を取付け、該カード８の先端部は前記ベース２上に立設された可動接片９の上方部位に係止されており、更に、該可動接片９には所定間隔を有して固定接点１０ａを有する固定接片１０が立設され、そして、従来例にて説明したようなリレー回路が形成されている。   Further, a card 8 is attached to the distal end portion of the armature 7, and the distal end portion of the card 8 is locked to an upper portion of the movable contact piece 9 erected on the base 2, and further, the movable contact piece. 9, a fixed contact piece 10 having a fixed contact 10a with a predetermined interval is erected, and a relay circuit as described in the conventional example is formed.

又、前記コイル５の端子５ａ及び可動接片９の端子９ａ並びに固定接片１０の端子１０ａは夫々ベース２に設けられている各端子の挿通孔（図示せず）を介して該ベース２の外側へ突設されている。従って、之等各端子５ａ，９ａ，１０ａとベース２との間には前記挿通孔によって小型リレー１内外への任意の隙間が形成され、このままでは水、ごみ、ほこり等が侵入する。そこで、本発明の実施の形態に於いては後述するように之等隙間はすべてシールされて水、ごみ、ほこり等の侵入は一切遮断されている。   Further, the terminal 5a of the coil 5, the terminal 9a of the movable contact piece 9, and the terminal 10a of the fixed contact piece 10 are respectively connected to the base 2 through insertion holes (not shown) of the respective terminals provided in the base 2. Projected outward. Accordingly, an arbitrary gap to the inside and outside of the small relay 1 is formed between the terminals 5a, 9a, 10a and the base 2 by the insertion hole, and water, dust, dust and the like invade in this state. Therefore, in the embodiment of the present invention, as will be described later, all the gaps are sealed to prevent any intrusion of water, dust, dust and the like.

而して、上記機構はケース１１によって被蔽されるのであるが、該ケース１１は下面開放の筒状体から成り、且つ、平面視が前記ベース２と略同形であり、高さが該ベース２上の前記機構の上面より僅かに高く形成されて成る。而して、該ケース１１は該ケース１１の前記下面開放部の下端面が前記ベース２の外周側面に嵌合されており、そして、図３に示す如く、前記各端子部分及び該ケース１１とベース２との接合部分等に接着剤１２を塗布してシールして成る。従って、該シールによってケース内外との通気及びケース内部への水、ごみ、ほこりの侵入は完全に遮断される。   Thus, although the mechanism is covered by the case 11, the case 11 is formed of a cylindrical body having an open bottom surface, and is substantially the same shape as the base 2 in plan view, and the height is the base. 2 is formed slightly higher than the upper surface of the mechanism. Thus, the lower end surface of the lower surface opening portion of the case 11 is fitted to the outer peripheral side surface of the base 11, and as shown in FIG. An adhesive 12 is applied and sealed to a joint portion with the base 2 and the like. Accordingly, the seal completely blocks the ventilation between the inside and outside of the case and the penetration of water, dust and dust into the case.

而して、本発明は斯くの如くシールされた小型リレー１のケース１１に開口部１３が設けられる。該開口部１３はベース２に設けてもよい。而して、該開口部１３は図１及び図４に示す如く、ケース１１の上面一側部に開穿され、そして、中心部に通気用の小孔１４が開穿され、更に、該小孔１４を中心として逆台形状に形成された空気溜り凹部１５が設けられ、該空気溜り凹部１５の外側を囲繞する如く略正方形状の***部１６が設けられ、更に該***部１６の外側に略正方形状の環状凹部１７が設けられている。   Thus, according to the present invention, the opening 13 is provided in the case 11 of the small relay 1 sealed as described above. The opening 13 may be provided in the base 2. Thus, as shown in FIGS. 1 and 4, the opening 13 is opened on one side of the upper surface of the case 11, and a small hole 14 for ventilation is opened in the central portion. An air reservoir recess 15 formed in an inverted trapezoidal shape centering on the hole 14 is provided, and a substantially square-shaped raised portion 16 is provided so as to surround the outside of the air reservoir recess 15, and further, on the outside of the raised portion 16. A substantially square annular recess 17 is provided.

而して、前記通気用の小孔１４は逆截頭円錐形に形成されて外部からの空気流入が円滑に行われるように形成される。又、該通気用の小孔１４から空気がケース１１内へ流入するとき、外部からの空気を一時空気溜り凹部１５に貯留しておくことができ、之により該通気用の小孔１４からのケース１１内部への空気流入を助成させることができる。   Thus, the vent hole 14 is formed in a reverse truncated cone shape so that air can be smoothly introduced from the outside. Further, when air flows into the case 11 from the vent hole 14, the air from the outside can be stored in the temporary air reservoir recess 15, and thus from the vent hole 14. Air inflow into the case 11 can be subsidized.

そこで、本発明に於いては図４の断面図に示すように四弗化エチレン樹脂等から成る防水シート１８を、前記環状凹部１７の周側縁部近傍に達する面積に形成し、そして、該防水シート１８の前記通気用の小孔１４を中心とし、且つ、前記***部１６及び環状凹部１７に接するように展張して接着剤１９にて接着する。更に、該接着剤１９は該防水シート１８の外周縁上面と前記環状凹部１７の周側面との間にも盛られて該防水シート１８の前記接着を強固にする。   Therefore, in the present invention, as shown in the sectional view of FIG. 4, a waterproof sheet 18 made of ethylene tetrafluoride resin or the like is formed in an area reaching the vicinity of the peripheral edge of the annular recess 17, and the The waterproof sheet 18 is stretched so as to be in contact with the raised portion 16 and the annular concave portion 17 with the ventilation small hole 14 as a center, and is bonded with an adhesive 19. Further, the adhesive 19 is also deposited between the upper surface of the outer peripheral edge of the waterproof sheet 18 and the peripheral side surface of the annular recess 17 to strengthen the adhesion of the waterproof sheet 18.

又、前記接着剤１９による該防水シート１８の接着に代え、該防水シート１８は熱溶着の手段によっても溶着することができる。然るときは溶着作業がより容易迅速、且つ、的確に行われることができる。   Further, instead of bonding the waterproof sheet 18 by the adhesive 19, the waterproof sheet 18 can be welded by means of heat welding. In that case, the welding operation can be performed more easily, quickly and accurately.

而して、前記防水シート１８は前述したように四弗化エチレン樹脂等から成るので、リレー内部への通気は許容されるが、水、ごみ、ほこり等の侵入は許さない。従って、本発明は前記開口部１３のみからの小型リレー１内部への空気流通は可能であるが、水、ごみ又はほこり等の侵入は一切遮断されることになる。依って、小型リレー１の可動接点９ｂと固定接点１０ｂとが溶着してリレーとしての開閉寿命が低下するようなことがなく、且つ、水、ごみ、ほこりの侵入による小型リレー１内部の汚染その他種々の弊害が未然に防止されることが可能となる。   Thus, since the waterproof sheet 18 is made of tetrafluoroethylene resin or the like as described above, ventilation into the relay is allowed but water, dust, dust and the like are not allowed to enter. Therefore, in the present invention, air can be circulated into the small relay 1 only from the opening 13, but intrusion of water, dust, dust or the like is completely blocked. Therefore, the movable contact 9b and the fixed contact 10b of the small relay 1 are not welded to reduce the open / close life of the relay, and contamination of the small relay 1 due to intrusion of water, dust, and dust, etc. Various harmful effects can be prevented in advance.

尚、本発明は、本発明の精神を逸脱しない限り種々の改変を為すことができ、そして、本発明が該改変されたものに及ぶことは当然である。   It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

本発明の一実施の形態を示し、小型リレーの平面図。The top view of the small relay which shows one embodiment of this invention. 図１の小型リレー内部を示す側面図。The side view which shows the inside of the small relay of FIG. 図１の底面図。The bottom view of FIG. 図２の円内の拡大縦断面図。FIG. 3 is an enlarged longitudinal sectional view in a circle of FIG. 2.

符号の説明Explanation of symbols

１ 小型リレー
２ ベース
３ コア
４ ボビン
５ コイル
５ａ コイルの端子
６ ヨーク
７ アマチュア
８ カード
９ 可動接片
９ａ 可動接片の端子
９ｂ 可動接点
１０ 固定接片
１０ａ 固定接片の端子
１０ｂ 固定接点
１１ ケース
１２ 接着剤
１３ 開口部
１４ 通気用の小孔
１５ 空気溜り凹部
１６ ***部
１７ 環状凹部
１８ 防水シート
１９ 接着剤 DESCRIPTION OF SYMBOLS 1 Small relay 2 Base 3 Core 4 Bobbin 5 Coil 5a Coil terminal 6 Yoke 7 Amateur 8 Card 9 Movable contact piece 9a Movable contact piece 9b Movable contact 10 Fixed contact piece 10a Fixed contact piece terminal 10b Fixed contact 11 Case 12 Adhesive 13 Opening 14 Small hole for ventilation 15 Air retaining recess 16 Raised portion 17 Annular recess 18 Waterproof sheet 19 Adhesive

Claims (3)

小型リレーのベース又はケースの任意の個所を開口し、該開口部に四弗化エチレン樹脂等から成る防水シートを接着し、該防水シートにてリレー内部への通気のみを可能としたことを特徴とする小型リレー。   Opening any part of the base or case of a small relay, attaching a waterproof sheet made of tetrafluoroethylene resin or the like to the opening, and allowing only ventilation to the inside of the relay with the waterproof sheet A small relay. 上記防水シートは上記ベース又はケースに設けた開口部の周辺部に熱溶着の手段で溶着されていることを特徴とする請求項１記載の小型リレー。   2. The small relay according to claim 1, wherein the waterproof sheet is welded to a peripheral portion of an opening provided in the base or the case by means of heat welding. 上記ベース又はケースに設けられた開口部は中心部に小孔が開穿され、該小孔の周辺部に空気溜り凹部が設けられ、更に、該空気溜り凹部の周辺部を***させ、該***部の外辺部に環状凹部が設けられ、該環状凹部及び前記***部上面に上記シートが熱溶着の手段で溶着され、且つ、該シートの周辺部に接着剤を盛って接着されることを特徴とする請求項１又は２記載の小型リレー。   The opening provided in the base or the case has a small hole in the center, an air reservoir recess is provided in the peripheral part of the small hole, and the peripheral part of the air reservoir recess is further raised, An annular recess is provided on the outer side of the part, and the sheet is welded to the annular recess and the upper surface of the raised part by means of heat welding, and an adhesive is applied to the peripheral part of the sheet and adhered. The small relay according to claim 1, wherein the relay is a small relay.
JP2004010064A 2004-01-19 2004-01-19 Small-sized relay Pending JP2005203290A (en)

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EP2214192A2 (en) 2009-02-02 2010-08-04 Anden Co., Ltd. Electromagnetic relay
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JP2012160897A (en) * 2011-01-31 2012-08-23 Sanyo Electric Co Ltd Waterproof structure of electronic apparatus
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US8093974B2 (en) 2008-09-12 2012-01-10 Anden Co., Ltd. Electromagnetic relay
EP2214192A2 (en) 2009-02-02 2010-08-04 Anden Co., Ltd. Electromagnetic relay
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US8164404B2 (en) 2009-02-02 2012-04-24 Anden Co., Ltd. Electromagnetic relay
JP2012160897A (en) * 2011-01-31 2012-08-23 Sanyo Electric Co Ltd Waterproof structure of electronic apparatus
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US9741516B2 (en) 2011-06-28 2017-08-22 Mitsuba Corporation Electromagnetic relay for vehicle
JP2011192658A (en) * 2011-07-05 2011-09-29 Panasonic Electric Works Co Ltd Contact switching device
US20140202277A1 (en) * 2011-09-06 2014-07-24 Makita Corporation Trigger switch
US9671813B2 (en) * 2011-09-06 2017-06-06 Omron Corporation Trigger switch
JP2015035301A (en) * 2013-08-08 2015-02-19 佐鳥エス・テック株式会社 Trigger switch
US9343246B2 (en) 2013-08-08 2016-05-17 Satori S-Tech Co., Ltd. Trigger switch
WO2017159008A1 (en) * 2016-03-15 2017-09-21 オムロン株式会社 Electrical contact opening/closing device
CN107851539A (en) * 2016-03-15 2018-03-27 欧姆龙株式会社 Electric contact opening and closing device
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