1251379 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種例如安裝於防水箱之連接器、以及連 :器構造者。特別是關於一種含有電子電路與保護該電子 :路之防水箱，適用於溫度變化較大之環境下使用之電子 I置的連接器以及連接器構造。 【先前技術】 先前，例如船舶、飛機、汽車等之電子電路，在暴露於 雨水或濕氣之環境下使狀情料，為防止水分侵入至内 部’故將其收容於防水箱中。於該防水箱中設有連接器， 上述之電子電路介以該連接器與外部進行電子信 發。 然而，該防水箱大多放置於溫度變化較大之環境下，故 而，若反覆發生自冑溫至低溫、自⑻溫至高溫之溫度變化， 則存有造成於防水箱產生龜裂、降低防水性之顧慮。 即，因溫度變化使防水箱之内部壓力與大氣壓之間產生 壓力差，造成防水箱變形。而且，反覆發生該變形之下， 防水箱便會產生龜裂。 由此，為解決上述課題，提出有藉由將防水箱之内部開 放於大氣中之處理，而保持防水箱内部壓力與大氣壓大致 相同之方法（參照日本專利特開2〇〇〇-228243號公報）。 具體έ之’其係於防水箱之側面固定有連接器，該連接 器連接於防水箱内之電路基板。又，該防水箱形成有連通 防水箱内部與連接器内部之連通孔。又，連接器安裝有外 93951.doc 1251379 部連接裔’該外部連接器形成有將其内部開放於大氣中之 通氣孔。 根據此構成，藉由將外部連接器連接至連接器，可使連 接器内部以及防水箱内部之壓力與大氣壓大致相同。 但疋，如上所述之方法中，考慮到外部連接器暴露於雨 水或濕氣之點’有必要確保形成於該外部連接器之通氣孔 之防水性。因此，實際上有必要於該通氣孔安裝兼具通氣 性與防水性之特殊的撥水過濾器。故而，根據先前之防水 箱之通氣方法，除需有特殊材料之外，製造步驟亦較為複 雜，故而成本較高。 又先別，該防水箱係以強度較高之金屬形成，近年來 則開始嘗試以使用性優良或製造成本低之樹脂形成之方 法。然因樹脂製之防水箱更容易因溫度變化而產生龜裂， 故而使連接器内部或防水箱内部之塵力維持與大氣壓大致 相同以防止龜裂產生之處理越發變得重要。 【發明内容】 本發明係鑒於如上之現狀開發而成者，其目的在於提供 一種即使因溫度變化造成防水箱之内部壓力急劇變化，亦 可防止龜裂之產生，且可降低製造成本之連接器。 為達成上述目的，本發明者經過不斷的精心研究，結果 發現：於連接於母連接器之電線中，設置可流通空氣之連 通路，經由該連通路可將防水箱之内部開放於大氣中。 即，本發明係提供以下⑴至⑷之連才妾器以及連接器構 造。 93951.doc 1251379 (i)一種連接器，其特徵在於··包含：公連接器，其係含 有於前端形成有開口之略為箱狀之第1外殼，以及設於該第 1外殼内部之第1連接端子；以及母連接器，其含有於前端 形成有開口之略為箱狀之第2外殼，以及設置於該第2外殼 内部之筒狀之第2連接端子；且，藉由將上述第^卜殼插入 至上述第2外殼内部，使上述第1連接端子插入至上述第2連 接端子内部，從而連接上述公連接器與上述母連接器者； 於上述第1外设係形成有與外部連通之連通孔；上述母連接 器含有連接於上述第2連接端+之電、線；上述電線含有芯 線、被覆該芯線之防水性被覆管、以及設於該被覆管内部 且連通上述被覆管兩端之連通路。 根據（1)之連接器，例如，將公連接器安裝於防水箱，將 第1外殼插人至第2外殼内部。貝，使第i連接端子插入至第 2連接端子内部，從而連接公連接器與母連接器。此時，於 連接器之内部形成有與外部隔絕之密封空間。該密封空間 介以連通孔與防水箱之内部連通。 在此，因於電線之被覆管内部設有連通路，將該電線連 接於母連接益’故而僅將電線之基端侧於大氣中開放，即 可介以連通路使防水箱内部或連接器内部於大氣中開放， 因此可將防水箱之内部壓力維持在與大氣塵接近之狀態或 與大«^相m此’即使因溫度變化而造成防水箱之内 部壓力急劇變化’亦可緩和該防水箱之内部壓力之變化， 從而可防止於防水箱產生龜裂。 又’若將連通孔以例如使用鐵頭之開孔加工形成，則可 93951.doc 1251379 因應防水箱之用途，將連通孔之孔徑任意設定。 (2) —種連接盗構造，其特徵在於：含有防水箱、設於該 防水箱之公連接器、以及連接於該公連接器之母連接器， 上述公連接器含有於前端形成有開口之略為箱狀之第1外 殼、以及設於該第丨外殼内部之第丨連接端子；上述母連接 器含有於前端形成有開口之略為箱狀之第2外殼、以及設於 該第2外殼内部之筒狀之第2連接端子；且，藉由將上述第、丄 外殼插入至上述第2外殼内部，使上述第丨連接端子插入至 上迷弟2連接端子之㈣’從而連接上述公連接器與上述母 連接器者；於上述第！外殼係形成有與上述防水箱連通之連 通孔；上述母連接H含有連接於上述第2連接端子之電線； 上述電線含有芯線、被覆該芯線之防水性被覆管、以及設 於該被覆管内部且連通上述被覆管兩端之連通路。 叹 根據（2)之連接器構造，將第i外殼插入至第2外殼内部。 則’第1連接端子插入至第2連接端子之内部，從而可連接 公連接器與母連接ϋ。此時，於連接器之内部形成有與外 部隔絕之密封空間。該㈣空間介以連通孔與防水 部連通。， ^ 一-〜Ο邱改啕逆逋路，將該 連接於母連接器，故而僅將電線之基端側於大氣中開放 即可介以連通路使防水箱内部或連接器内部開放:大 中’故而可將防水箱之内部壓力維持在與大氣壓接近之 態或與大氣壓相同。藉此’即使因溫度變化而造成 之内部壓力急劇變化’亦可緩和該防水箱之内部壓力： 93951.doc 1251379 化，故而可防止於防水箱產生龜裂之情形。 又，如先前，因無需於母連接器中設置特殊構件，故而 可降低製造成本。 又，若將連通孔以例如使用鑽頭之開孔加工形成，則可 根據防水箱之用途，將連通孔之孔徑任意設定。 ⑺如上述⑺之連接ϋ構造，其巾域公連接器之第w 殼係一體形成於上述防水箱上。 根據（3)之連接器，因將第！外殼與防水箱一體形成，故而 即使以低強度之材料形成連接器，亦可更加確實地防止龜 裂產生。 (4)如上述（2)或（3)之連接器構造，其中於上述公連接器係 可安裝堵住上述連通孔之暫設銷。 根據（4)之連接器構造，僅需裝卸暫設銷即可將連接器之 構造使用於各種用途。 例如，於溫度變化較大之環境下，將暫設銷自連通孔取 下，將連接器或防水箱之内部壓力維持在與大氣壓大致相 同。另外，於溫度變化較小之環境下，因防水箱内之内部 壓力之變化不會對電路基板造成障礙，故而可保持安裝^ 暫設銷之狀態。 【實施方式】 以下，佐以圖式就本發明之實施形態加以說明。另外， 於以下實施形態之說明中，對於同一構成之重要構件標註 同一符號，並省略或簡化其說明。 [第一實施形態] 93951.doc -10- 1251379 圖1A係表示構成本實施形態之連接器之公連接器1 〇之立 體圖。圖1Β係表示公連接器1 〇之剖面圖。 連接器含有公連接器10、及連接於該公連接器1〇之母連 接器20。 公連接裔10具有於前端形成有開口之樹脂製之略為箱狀 的第1外殼11，以及設置於該第丨外殼u内部之5個第丨連接 端子12。 第1外殼11包含橢圓形之圓筒部llb，以及堵住該圓筒部 11b之一端側之底壁lla而形成。外殼u之内部形成有内部 空間A。 底壁lla具有堵住圓筒部nb之壁厚之厚壁部Ue，以及自 該厚壁部lie延伸成鍔狀之鍔部llf。於厚壁部Ue形成有連 通内部空間A與外部之連通孔13。於鍔部Uf之兩端形成有 螺絲孔1 lc。於該螺絲孔丨lc中插入用以將公連接器ι〇安裝 於下述之防水箱100的安裝螺絲。 又，於底壁lla之厚壁部lie之兩端，形成有向外側突出 之一對棒狀之安裝銷lld。此等安裝銷Ud夾著第1連接端子 12而σ又置，並與弟1連接端子12大致平行延伸。此等一對安 裝銷lid係用以將公連接器10定位於下述防水箱1〇〇上。 第1連接端子12係金屬製之棒狀構件，其係貫穿並固定於 外设11之厚壁部lie。 第1連接端子12之前端侧12a露出於外殼u之内部空間A 中基&側m路出於外殼11之外側。該第1連接端子12之 基端側12b連接於收容於防水箱1〇〇之内部的電路基板。 93951.doc -11 - 1251379 如此之公連接器10之外殼11係藉由所謂的射出成型製造 而成。即’藉由於金屬模具内配置第i連接端子12，於此狀 態下將樹脂注人至金屬模具内之處理，形成外殼⑴ 另外it通孔13可藉由射出成型形成，亦可於形成外殼 11後以鑽頭開孔而形成。 圖2A係表示構成本實施形態之連接器之母連接器汕之立 體圖。圖2B係表示母連接器2〇之剖面圖。 母連接器20具有於前端形成有開口之樹脂製之略為箱狀 之第2外设21、設置於該第丨外殼21内部之5個第2連接端子 23、以及連接於該第2連接端子23之電線22。 第2外殼21包含橢圓形之圓筒部21b、以及堵住該圓筒部 21b之一端側之底壁21a而形成。於外殼以之内部形成有内 部空間B。 於底壁21 a以特定間隔形成有複數個貫穿孔，於此等貫穿 孔中穿插有電線22。此等貫穿孔與電線22之間嵌入有作為 松封貫穿孔之密封構件之筒狀橡膠栓24。 進而，於底壁21a之内部空間B側，亦嵌入有作為密封構 件之環狀橡膠栓25。 圖3A以及圖3B係表示第1連接端子12與第2連接端子23 之連接狀態之放大立體圖以及剖面圖。又，圖4係電線22之 剖面圖。 第2連接端子23係將金屬製之板構件加工為略圓筒狀而 形成。藉由連接公連接器10與母連接器20，使第1連接端子 12之前端側12a插入至第2連接端子23之内部。 93951.doc -12 - 1251379 電線22含有芯線22a、被覆該芯線22a之防水性被覆管 22b、以及設置於該被覆管22]3之内部之連通路c。 芯線22a以撚合複數條金屬線之方式形成。再者，芯線並 非僅限於此者，亦可以1條金屬線形成。 連通路0係形成於芯線22a與被覆管22b之間的間隙。該連 通路C貫穿延伸於被覆管22b之全體，而連通被覆管22b之兩 端。 於電線22之前端剝去被覆管22b而露出芯線22a。藉由將 該露出之芯線22a插入至第2連接端子23之基端側内部並使 其固定’使電線22連接至第2連接端子23。另外，此狀態中， 自第2連接端子23之固定部分露出芯線22a之兩側部分 22aa、22ab 〇 又，電線22藉由上述之橡膠栓24而固定於第2連接端子23 之基端側。 如此之母連接器20之外殼21係藉由所謂射出成型製造而 成。即，在將電線22連接至第2連接端子23且安裝橡膠栓24 之狀悲下配置於金屬模具内。其次，藉由將樹脂注入至金 屬模具内而形成外殼11。 另外，不僅限於此者，亦可將外殼21射出成型後，使電 線22貫穿該外殼21，將其連接至第2連接端子幻，再安裝橡 膠栓24。 圖5係表示連接器安裝於防水箱1〇〇之狀態之剖面圖。 防水箱100係含有内部空間又之樹脂製之箱狀者。於防水 箱1〇0之内部空間X中，收納有未圖示之電路基板。又，公 93951.doc -13 - 1251379 連接器10安裝於防水箱1〇〇之側壁。另外，於公連接器10之 底壁11a與防水箱100之側壁之間，以包圍厚壁部lle之方 式’設有作為密封構件之環狀橡膠栓30。 公連接器10係按照以下之步驟安裝於防水箱。即，將公 連接器10之安裝銷lld嵌合至形成於防水箱1〇〇上之安裝 孔。同時，將公連接器10之外殼丨丨之厚壁部lie嵌入防水箱 100之開口部。其後，將一對安裝螺絲穿插於公連接器10之 螺絲孔11c中，螺合至防水箱ι00之側壁。 如此，藉由將公連接器1〇安裝於防水箱100上，防水箱1〇〇 之内部空間X即經由貫穿公連接器10之厚壁部14之連通孔 13而連通公連接器1〇之内部空間a。 以上之連接為’之動作如下。 將公連接器10之第1外殼11插入至母連接器20之第2外殼 21之内部。則，第1連接端子12之前端側12&插入至第2連接 端子23之内部，從而連接公連接器1〇與母連接器2〇。 此時，公連接器10之開口與母連接器20之底壁21 a之間之 間隙藉由橡膠栓25予以密封，電線22與母連接器20之底壁 21 a之間之間隙猎由橡膠检2 4予以密封。藉此，於連接器之 内部形成與外部隔絕之密封空間γ。 因於該密封空間Y中露出芯線22a之兩側部分22aa、 22ab(參照圖3)，故而經由鄰接於該芯線22a之連通路C，使 逸、封空間Y與設有其他控制電路之箱體2〇〇之内部得以連 通。 故而’根據本實施形態，具有以下之效果。 93951.doc -14* 1251379 因於電線22之被覆管22b之内部設有連通路c，故而僅需 將電線22之基端側開放於大氣中，即可介以連通路c以及連 通孔13將防水箱100之内部或連接器之内部開放於大氣 中，因此可將防水箱1〇〇之内部壓力維持在與大氣壓接近之 狀悲或與大氣壓相同。藉此，即使防水箱i〇〇之内部壓力因 溫度變化而急劇變化，亦可緩和該防水箱1〇〇之内部壓力之 變化，故而可防止防水箱100產生龜裂之情形。 另外，在上述第1實施形態中，係藉由開孔之處理形成公 連接為10之連通孔13，但並非僅限於此者，亦可藉由將金 屬製或樹脂製之中空管安裝於公連接器1〇之厚壁部1“而 形成。 再者，於上述第1實施形態中，電線22之芯線22a係使用 撚合線而形成’但並非僅限於此者，亦可使用單線形成。 又’於上述第1實施形態中，係將公連接器1〇之第1外殼 11與防水箱1 〇〇分開形成，但並非僅限於此者，亦可將該等 一體形成。若如此，則即使以強度低於金屬製之樹脂製形 成連接時，亦可更加確實地防止龜裂產生。 [第二實施形態] 圖6係表示構成本實施形態之連接器之公連接器4〇之剖 面圖。 本實施形態與第1實施形態的不同點在於，於公連接器40 之連通孔13安裝有暫設銷41。 即，公連接器40之連通孔13係以暫設銷41堵住。該公連 接器40之外殼21按照以下步驟形成。即，在將電線22連接 93951.doc -15- 1251379 至第2連接端子23並安裝橡膠栓24之狀態下，與暫設銷41 一 併配置於金屬模具内。其次，藉由將樹脂注入至金屬模具 内，形成外殼11。 根據本實施形態可獲得以下之效果。 因於連通孔1 3設有暫設銷41，故而僅需裝卸暫設銷41 即可將連接器使用於各種用途。 例如，於温度變化較大之環境下，將暫設銷41自連通孔 13取下，將連接器或防水箱之内部壓力維持在與大氣壓大 致相同。另外，於溫度變化較小之環境下，因防水箱内之 内部壓力之變化不會對電路基板造成障礙，故而可保持將 暫設銷41安裝於連通孔丨3之狀態。 根據本發明之連接器，可獲得以下之效果 因於電線之被覆管之内部設有連通路，將該電線連接至 母連接器，故而僅需將電線之基端側開放於大氣中，即可 介以連通路將防水箱之内部或連接器之内部開放於大氣 中’因此可將防水箱之㈣壓力維持在與大氣壓接近之狀 態或與大氣壓相同。因&，即使防水箱之帽力因溫度 變化而急劇變化，亦可緩和該防水箱之内部壓力之變化， 故而可防止防水箱產生龜裂之情形。 【圖式簡單說明】 之公連 圖1A係表示構成本發明 接器之立體圖。 之第1實施形態之連接器 之公連接器之剖面圖 之母連接器之立體圖 圖1B係表示上述實施形態 圖2A係表示上述實施形態 93951.doc 1251379 圖2B係表示上述實施形態之母連接器之剖面圖。 圓3A係表示上述實施形態之第〗連接端子與第2連接端子 之連接狀態的放大立體圖。 圖3B係表示上述實施形態之第〗連接端子與第2連接端子 之連接狀態之剖面圖。 圖4係表示上述實施形態之電線之剖面圖。 圖5係表示上述實施形態之連接器安裝於防水箱之狀態 之剖面圖。 圖6係表示構成本發明之第2實施形態之連接器之公連接 器之剖面圖。 【主要元件符號說明】 10 公連接器 11 第1外殼 12 弟1連接端子 11a 底壁 lib 圓筒部 11c 螺絲孔 lid 安裝銷 Ilf 鍔部 A 内部空間 13 連通孔 12a 第1連接端子12之前 12b 第1連接端子12之基 lie 厚壁部 93951.doc -17- 20 1251379 21 21a 21b 22 22a 22b 24 231251379 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a connector for mounting to a waterproof case, for example, and a connector builder. In particular, it relates to a connector including an electronic circuit and a circuit for protecting the electronic circuit, which is suitable for use in an environment in which the temperature varies greatly, and a connector structure. [Prior Art] Previously, electronic circuits such as ships, airplanes, automobiles, and the like were placed in an environment exposed to rain or moisture to prevent moisture from intruding into the interior, so that they were housed in a waterproof case. A connector is disposed in the waterproof case, and the electronic circuit described above electronically transmits the connector to the outside. However, most of the waterproof case is placed in an environment where the temperature changes greatly. Therefore, if the temperature changes from the temperature of the temperature to the low temperature and from the temperature of (8) to the high temperature, the crack occurs in the waterproof case and the waterproofness is lowered. Concerns. That is, a pressure difference is generated between the internal pressure of the waterproof case and the atmospheric pressure due to the temperature change, causing the waterproof case to be deformed. Moreover, under the deformation, the waterproof case will be cracked. Therefore, in order to solve the problem, it is proposed to keep the internal pressure of the waterproof case substantially the same as the atmospheric pressure by opening the inside of the waterproof case to the atmosphere (refer to Japanese Patent Laid-Open No. Hei. No. 2-228243). ). Specifically, the connector is attached to the side of the waterproof case, and the connector is connected to the circuit board in the waterproof case. Further, the waterproof case is formed with a communication hole that communicates the inside of the waterproof case and the inside of the connector. Further, the connector is mounted with an outer portion 93951.doc 1251379. The external connector is formed with a vent hole that opens the inside of the atmosphere. According to this configuration, by connecting the external connector to the connector, the pressure inside the connector and inside the waterproof case can be made substantially the same as the atmospheric pressure. However, in the method as described above, it is necessary to ensure the waterproofness of the vent hole formed in the external connector in consideration of the point at which the external connector is exposed to rain or moisture. Therefore, it is actually necessary to install a special water-repellent filter having both air permeability and water repellency in the vent hole. Therefore, according to the previous method of ventilating the waterproof box, in addition to the special materials, the manufacturing steps are complicated, and the cost is high. Further, the waterproof case is formed of a metal having a high strength, and in recent years, attempts have been made to form a resin which is excellent in usability or low in production cost. However, the waterproof case made of resin is more likely to be cracked due to temperature changes, so that the dust inside the connector or the inside of the waterproof case is maintained to be substantially the same as the atmospheric pressure to prevent the occurrence of cracks. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector which can prevent the occurrence of cracks even if the internal pressure of the waterproof case changes abruptly due to a temperature change, and can reduce the manufacturing cost. . In order to achieve the above object, the inventors of the present invention have conducted intensive studies and found that a connecting passage for air can be provided in the electric wire connected to the female connector, and the inside of the waterproof case can be opened to the atmosphere through the communication path. That is, the present invention provides the following connector (1) to (4) and the connector structure. 93951.doc (1) A connector comprising: a male connector including a first case having a box shape in which an opening is formed at a distal end; and a first case provided inside the first case a connection terminal; and a female connector including a second housing having a substantially box-shaped opening at the front end thereof and a tubular second connection terminal provided inside the second housing; and The case is inserted into the second casing, and the first connection terminal is inserted into the second connection terminal to connect the male connector and the female connector; and the first external device is connected to the outside. a communication hole; the female connector includes an electric wire connected to the second connection end +; the electric wire includes a core wire, a waterproof cover pipe covering the core wire, and a inside of the cover pipe and communicating with both ends of the cover pipe Connected roads. According to the connector of (1), for example, the male connector is attached to the waterproof case, and the first case is inserted into the inside of the second case. The ith connection terminal is inserted into the inside of the second connection terminal to connect the male connector and the female connector. At this time, a sealed space isolated from the outside is formed inside the connector. The sealed space communicates with the inside of the waterproof case via a communication hole. Here, since the communication path is provided inside the covered pipe of the electric wire, and the electric wire is connected to the female connection, the base end side of the electric wire is opened only in the atmosphere, and the inside of the waterproof case or the connector can be connected via the communication path. The inside is open to the atmosphere, so that the internal pressure of the waterproof case can be maintained in a state close to the atmospheric dust or the internal pressure of the waterproof case can be drastically changed even if the temperature changes due to the temperature change. The change in the internal pressure of the box prevents cracking in the waterproof case. Further, if the communication hole is formed by, for example, using an opening of an iron head, the opening diameter of the communication hole can be arbitrarily set in accordance with the use of the waterproof case 93951.doc 1251379. (2) A connection thief structure comprising: a waterproof case, a male connector provided in the waterproof case, and a female connector connected to the male connector, wherein the male connector includes an opening formed at the front end a first housing having a slightly box shape and a second connection terminal provided inside the second housing; the female connector includes a second housing having a box shape with an opening formed at the distal end thereof, and a second housing disposed inside the second housing a tubular second connection terminal; and the first and second housings are inserted into the second housing, and the second connection terminal is inserted into the fourth terminal of the upper 2 connection terminal to connect the male connector and the Female connector; in the above! The outer casing is formed with a communication hole that communicates with the waterproof case; the female connection H includes an electric wire connected to the second connection terminal; and the electric wire includes a core wire, a waterproof cover pipe covering the core wire, and the inside of the cover pipe. Connect the communication paths at both ends of the covered tube. According to the connector structure of (2), the i-th casing is inserted into the inside of the second casing. Then, the first connection terminal is inserted into the inside of the second connection terminal, so that the male connector and the female connection port can be connected. At this time, a sealed space isolated from the outside is formed inside the connector. The (four) space communicates with the waterproof portion via the communication hole. ^ ^一~~Ο邱改啕 reverse the road, the connection to the female connector, so only the base end side of the wire is open in the atmosphere, the communication path can be connected to make the inside of the waterproof box or the inside of the connector open: large In the end, the internal pressure of the waterproof box can be maintained at or near atmospheric pressure. By this, even if the internal pressure changes abruptly due to temperature changes, the internal pressure of the waterproof case can be alleviated: 93951.doc 1251379, so that cracking of the waterproof case can be prevented. Further, as in the prior art, since it is not necessary to provide a special member in the female connector, the manufacturing cost can be reduced. Further, when the communication hole is formed by, for example, drilling using a drill, the hole diameter of the communication hole can be arbitrarily set according to the use of the waterproof case. (7) The joint structure of the above (7), wherein the w-shell of the male connector of the towel domain is integrally formed on the waterproof case. According to the connector of (3), because of the first! Since the outer casing is integrally formed with the waterproof case, even if the connector is formed of a low-strength material, the occurrence of cracks can be more reliably prevented. (4) The connector structure according to (2) or (3) above, wherein the male connector is provided with a temporary pin that blocks the communication hole. According to the connector structure of (4), the structure of the connector can be used for various purposes only by attaching and detaching the temporary pin. For example, in an environment where the temperature changes greatly, the temporary pin is removed from the communication hole, and the internal pressure of the connector or the waterproof case is maintained to be substantially the same as the atmospheric pressure. In addition, in an environment where the temperature changes little, the internal pressure of the waterproof case does not cause an obstacle to the circuit board, so that the state of the mounting pin can be maintained. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, the same components are denoted by the same reference numerals, and the description thereof will be omitted or simplified. [First Embodiment] 93951.doc -10- 1251379 Fig. 1A is a perspective view showing a male connector 1 构成 constituting the connector of the embodiment. Figure 1 is a cross-sectional view showing the male connector 1 。. The connector includes a male connector 10 and a female connector 20 connected to the male connector. The male connector 10 has a first housing 11 having a box shape formed of a resin having an opening at its tip end, and five second connection terminals 12 provided inside the second housing u. The first outer casing 11 includes an elliptical cylindrical portion 11b and a bottom wall 11a that blocks one end side of the cylindrical portion 11b. An inner space A is formed inside the outer casing u. The bottom wall 11a has a thick portion Ue that blocks the wall thickness of the cylindrical portion nb, and a crotch portion 11f that extends from the thick portion lie into a meandering shape. A communication hole 13 that connects the internal space A and the outside is formed in the thick portion Ue. Screw holes 1 lc are formed at both ends of the flange Uf. A mounting screw for attaching the male connector ι to the waterproof case 100 described below is inserted into the screw hole 丨lc. Further, at both ends of the thick portion lie of the bottom wall 11a, a pair of rod-shaped mounting pins 11d projecting outward are formed. These mounting pins Ud are placed apart from each other with the first connection terminal 12 interposed therebetween, and extend substantially parallel to the connection terminal 12 of the brother 1. These pair of mounting pins are used to position the male connector 10 on the waterproof case 1 below. The first connection terminal 12 is a rod-shaped member made of metal, which is penetrated and fixed to the thick portion lie of the peripheral portion 11. The front end side 12a of the first connection terminal 12 is exposed in the inner space A of the outer casing u, and the base & side m path is outside the outer casing 11. The base end side 12b of the first connection terminal 12 is connected to a circuit board housed inside the waterproof case 1A. 93951.doc -11 - 1251379 The outer casing 11 of such a male connector 10 is manufactured by so-called injection molding. That is, by the arrangement of the i-th connection terminal 12 in the metal mold, the resin is injected into the mold in this state to form the outer casing (1). The other through-hole 13 can be formed by injection molding, or the outer casing 11 can be formed. It is then formed by opening the drill bit. Fig. 2A is a perspective view showing a female connector 构成 constituting the connector of the embodiment. Fig. 2B is a cross-sectional view showing the female connector 2A. The female connector 20 has a second outer casing 21 having a box shape formed of a resin having an opening at its tip end, five second connection terminals 23 provided inside the second casing 21, and a second connection terminal 23 connected thereto. Wire 22. The second outer casing 21 is formed by including an elliptical cylindrical portion 21b and a bottom wall 21a that blocks one end side of the cylindrical portion 21b. An inner space B is formed inside the outer casing. A plurality of through holes are formed in the bottom wall 21a at a specific interval, and the electric wires 22 are inserted through the through holes. A cylindrical rubber plug 24 as a sealing member for loosening the through hole is fitted between the through hole and the electric wire 22. Further, on the side of the internal space B of the bottom wall 21a, an annular rubber plug 25 as a sealing member is also fitted. 3A and 3B are an enlarged perspective view and a cross-sectional view showing a state in which the first connection terminal 12 and the second connection terminal 23 are connected. Further, Fig. 4 is a cross-sectional view of the electric wire 22. The second connection terminal 23 is formed by processing a metal plate member into a substantially cylindrical shape. By connecting the male connector 10 and the female connector 20, the front end side 12a of the first connection terminal 12 is inserted into the inside of the second connection terminal 23. 93951.doc -12 - 1251379 The electric wire 22 includes a core wire 22a, a water-repellent coated pipe 22b covering the core wire 22a, and a communication path c provided inside the covered pipe 22]3. The core wire 22a is formed by twisting a plurality of metal wires. Further, the core wire is not limited to this, and may be formed by one metal wire. The communication path 0 is formed in a gap between the core wire 22a and the covered tube 22b. The connecting passage C extends through the entire covered tube 22b and communicates with both ends of the covered tube 22b. The covered tube 22b is peeled off at the front end of the electric wire 22 to expose the core wire 22a. The exposed wire 22a is inserted into the base end side of the second connection terminal 23 and fixed thereto to connect the electric wire 22 to the second connection terminal 23. Further, in this state, the both side portions 22aa and 22ab of the core wire 22a are exposed from the fixed portion of the second connection terminal 23, and the electric wire 22 is fixed to the base end side of the second connection terminal 23 by the rubber plug 24 described above. The outer casing 21 of the female connector 20 is manufactured by so-called injection molding. In other words, the electric wire 22 is connected to the second connection terminal 23 and the rubber plug 24 is attached to the metal mold. Next, the outer casing 11 is formed by injecting a resin into a metal mold. Further, not limited to this, the outer casing 21 may be injection molded, the electric wire 22 may be inserted through the outer casing 21, and the second connecting terminal may be connected to the second connecting terminal, and the rubber plug 24 may be attached. Fig. 5 is a cross-sectional view showing a state in which the connector is attached to the waterproof case 1'. The waterproof case 100 is a box made of resin and having an internal space. A circuit board (not shown) is housed in the internal space X of the waterproof case 1〇0. Further, the male connector 93951.doc -13 - 1251379 is attached to the side wall of the waterproof case 1 . Further, an annular rubber plug 30 as a sealing member is provided between the bottom wall 11a of the male connector 10 and the side wall of the waterproof case 100 so as to surround the thick portion lle. The male connector 10 is attached to the waterproof case in accordance with the following procedure. That is, the mounting pin 11d of the male connector 10 is fitted to the mounting hole formed in the waterproof case 1〇〇. At the same time, the thick portion lie of the outer casing of the male connector 10 is inserted into the opening of the waterproof case 100. Thereafter, a pair of mounting screws are inserted into the screw holes 11c of the male connector 10, and screwed to the side walls of the waterproof case ι00. Thus, by attaching the male connector 1A to the waterproof case 100, the internal space X of the waterproof case 1 is communicated with the male connector 1 via the communication hole 13 penetrating the thick portion 14 of the male connector 10. Internal space a. The above connection is as follows. The first outer casing 11 of the male connector 10 is inserted into the inside of the second outer casing 21 of the female connector 20. Then, the front end side 12& of the first connection terminal 12 is inserted into the inside of the second connection terminal 23, thereby connecting the male connector 1'' to the female connector 2''. At this time, the gap between the opening of the male connector 10 and the bottom wall 21a of the female connector 20 is sealed by the rubber plug 25, and the gap between the electric wire 22 and the bottom wall 21a of the female connector 20 is hunted by rubber. Check 2 4 to seal. Thereby, a sealed space γ which is isolated from the outside is formed inside the connector. Since the both side portions 22aa and 22ab (see FIG. 3) of the core wire 22a are exposed in the sealed space Y, the escape and sealing space Y and the casing provided with other control circuits are connected via the communication path C adjacent to the core wire 22a. The interior of the 2nd is connected. Therefore, according to the present embodiment, the following effects are obtained. 93951.doc -14* 1251379 Since the communication path c is provided inside the covered tube 22b of the electric wire 22, it is only necessary to open the proximal end side of the electric wire 22 to the atmosphere, and the communication path c and the communication hole 13 can be interposed. The inside of the waterproof case 100 or the inside of the connector is open to the atmosphere, so that the internal pressure of the waterproof case 1 can be maintained at the same level as the atmospheric pressure or the same as the atmospheric pressure. As a result, even if the internal pressure of the waterproof case abruptly changes due to temperature changes, the internal pressure of the waterproof case 1 can be alleviated, so that the waterproof case 100 can be prevented from being cracked. Further, in the above-described first embodiment, the communication hole 13 having the male connection of 10 is formed by the treatment of the opening, but the invention is not limited thereto, and a hollow tube made of metal or resin may be attached thereto. In the first embodiment, the core wire 22a of the electric wire 22 is formed by using a twisted wire. However, the present invention is not limited thereto, and a single wire may be used. Further, in the first embodiment described above, the first outer casing 11 of the male connector 1 is formed separately from the waterproof case 1 , but the present invention is not limited thereto, and may be integrally formed. In the case where the connection is made of a resin made of a metal, the crack can be prevented more reliably. [Second embodiment] Fig. 6 is a cross section showing a male connector 4〇 constituting the connector of the embodiment. The present embodiment is different from the first embodiment in that a temporary pin 41 is attached to the communication hole 13 of the male connector 40. That is, the communication hole 13 of the male connector 40 is blocked by the temporary pin 41. The outer casing 21 of the male connector 40 is formed in the following steps. When the electric wire 22 is connected to the 93951.doc -15-1251379 to the second connection terminal 23 and the rubber plug 24 is attached, it is placed in the mold together with the temporary pin 41. Second, by injecting the resin into the metal mold The outer casing 11 is formed. According to the present embodiment, the following effects can be obtained. Since the communication hole 13 is provided with the temporary pin 41, the connector can be used for various purposes only by attaching and detaching the temporary pin 41. In an environment where the temperature changes greatly, the temporary pin 41 is removed from the communication hole 13, and the internal pressure of the connector or the waterproof case is maintained to be substantially the same as the atmospheric pressure. In addition, in the environment where the temperature changes little, the waterproof case The change in the internal pressure does not cause an obstacle to the circuit board, so that the state in which the temporary pin 41 is attached to the communication hole 3 can be maintained. According to the connector of the present invention, the following effects can be obtained due to the covered tube of the electric wire. There is a communication path inside, and the wire is connected to the female connector, so that only the base end side of the wire is opened to the atmosphere, and the inside of the waterproof case or the inside of the connector can be opened to the large through the communication path. 'The pressure of the waterproof box (4) can be maintained close to the atmospheric pressure or the same as the atmospheric pressure. Even if the cap force of the waterproof box changes drastically due to temperature changes, the internal pressure change of the waterproof case can be alleviated. Therefore, the case where the waterproof case is cracked can be prevented. [Brief Description of the Drawings] FIG. 1A is a perspective view showing a connector constituting the present invention. The mother of the cross-sectional view of the male connector of the connector of the first embodiment FIG. 2B is a cross-sectional view showing the female connector of the above-described embodiment. FIG. 2B is a cross-sectional view showing the female connector of the above-described embodiment. An enlarged perspective view of the connection state of the second connection terminal. Fig. 3B is a cross-sectional view showing a state in which the connection terminal and the second connection terminal of the above embodiment are connected. Fig. 4 is a cross-sectional view showing the electric wire of the above embodiment. Fig. 5 is a cross-sectional view showing a state in which the connector of the above embodiment is attached to a waterproof case. Fig. 6 is a cross-sectional view showing a male connector constituting a connector according to a second embodiment of the present invention. [Main component symbol description] 10 male connector 11 first housing 12 brother 1 connection terminal 11a bottom wall lib cylindrical portion 11c screw hole lid mounting pin Ilf 锷 portion A internal space 13 communication hole 12a before the first connection terminal 12 12b 1 base of the connection terminal 12 lie thick wall portion 93951.doc -17- 20 1251379 21 21a 21b 22 22a 22b 24 23
25 B25 B
22aa ， 22ab 22a C X 100 3022aa , 22ab 22a C X 100 30
Y 200 40 41 母連接器 第2外殼 底壁 圓筒部 電線 芯線 被覆管 筒狀橡膠栓 第2連接端子 環狀橡膠栓 内部空間 芯線 兩側部分 連通路 内部空間 防水箱 環狀橡膠栓 密封空間 箱 公連接器 暫設銷 93951.doc -18-Y 200 40 41 Female connector 2nd housing bottom wall cylindrical part wire core covered tube tubular rubber plug 2nd connection terminal ring rubber plug inner space core line part of the communication road internal space waterproof box ring rubber bolt sealing space box Male connector temporary pin 93951.doc -18-