200414635 玖、發明說明： I：發明所屬之技術領域】 發明領域 本發明係大致有關於電氣連接器之技術，特別是有關 5 於一種用以在兩電路板之間之進行連接的電氣連接器總 成。 發明背景 多種電氣連接器已被用來在不同印刷電路板上之電路 10之間進行連接，這些印刷電路板必須以可有效地且可靠地 連接在一電路板上之電路與在另一電路板上之電路之方 式，以連接益結合在一起。這是由一對對接連接器來達成， 且該對對接連接器是表面安裝連接器並且可包括一與一母 或插座連接器對接之公或插頭連接器以形成一“板對板，， 15電氣連接器總成。 在此，第27圖顯示一揭露於日本專利公開公報第 08-148240A號（第9圖）之典型板對板電氣連接器總成的例 子，如圖所不，一大致以32表示之插頭或公連接器沿箭號 A”之方向插入一大致以34表示之插座或母連接器，該公 2〇連接裔包括多數結合多數導電端子36，且該等導電端子36 與該母連接器之多數導電端子％結合。插頭連接器32之端 子36藉由多數焊料連接部44來連接在一第一電路板c上之 電路線路40，母連接器34藉由多數焊料連接部如來連接在 第二電路板48上之電路線路46。該等連接器在第·中是以 5 實線表示其未對接狀態且以虛線表示其對接狀態。 隨著在電子工業中使整個系統不斷迷你化且因此使所 有電氣組件迷你化之趨勢，板對板電氣連接器不僅必須具 有低輪廓，而且於兩電路板對接之情形下，在該等電路板 5 之間之間距“S”必須儘可能地小。不幸地，由於端子之數 目與焊料連接部44與50之數目增加，要減少在兩電路板之 間之間距“S”是很困難的。 因此，在先前技術中已有之減少這間距之方法，如曰 本專利公開公報第2001 -273949號中所揭露且在此顯示於 第28與29圖中者。如圖所示，一大致以52表示之母連接器 收納一大致以53表示之公連接器，該公連接器係表面安裝 至一第一電路板54，且該母連接器52係表面安裝至一第二 電路板55。同時，該等連接器在第29圖中係以實線表示其 未對接狀態且以虛線表示該公連接器在其完全對接狀態。 15該公連接器可朝箭號“A”之方向與該母連接器對接（第29 圖）。 公連接器53包括多數藉由多數焊料連接部44連接至在 電路板54上之適當電路線路的導電端子允，母連接器52包 括多數連接於在電路板55上之適當電路線路的導電端子 20 57。為了在連接器52與53如第29圖所示地對接時減少在電 路板54與55之間的間距，母連接器52之對接面58具有容納 公連接器53之焊料連接部44的凹陷區域59。該凹陷區域分 係顯不於第28圖中，藉由在該母連接器之對接面中設置凹 陷區域，電路板54與55可以在該等連接器對接時更靠近在 6 414635 一起。 不幸地，第27圖及第28與29圖兩者所示之習知連接器 均具有灰塵與污物可進入該等連接器之對接介面且會累積 在該等對接端子上，而這將由於灰塵與污物之累積而使電 5氣接觸失效。通達至第27圖中之對接端子是相當清楚的， 且第29圖顯示凹陷區域59如何在該連接器總成之側邊開口 而使灰塵與污物可進入該等端子之連接介面中。 第30圖顯示揭示於曰本公開公報第2〇〇〇_26〇5〇9八號 (第1圖）中之另一先前技術之電氣連接器總成，如圖所示， 1〇 一公連接器60可與一母連接器62對接。該公連接器包括多 數具有接觸部份64之導電端子63，而該等端子63係與母連 接窃62之多數導電端子66之接觸部份65結合。該公連接器 之端子63藉由焊料連接部44連接至在一第一電路板68上之 適當電路線路，且母連接器62之端子66藉由焊料連接部44 15連至在一第二電路板70上之適當電路線路69。第30圖所示 之連接器結構指出板對板連接器總成之另一缺點是無論如 何均很難決定何時該公與母連接器已完全對接，換言之， 母連接器62之端子66之接觸部份65僅沿著公連接器6〇之端 子63之接觸部份64之筆直表面跨置。兩連接器之接觸部份 20之平順滑動關係在該等連接器對接時不會產生任何感官上 之指示或“感覺”。 〜 為了解決第30圖所示之習知連接器總成之前述問題， 第圖顯示-具有接觸部份64之端子63，且該接觸部份料 可與-對應於第30圖之前述端子之端子^之接觸部份⑹吉 7 合。但是在此應注意的是在第31圖中，端子63具有一凹陷 或切除區域71，且端子66之接觸部份65 “扣入，，該凹陷區 域71以便為該等連接器之對接提供某種形式之感官指示。 不幸地，由於這些連接器總成不斷迷你化，這凹陷區域71 變得太小而使得操作者事實上只有非常小的“感覺”。 本發明係欲解決前述先前技術之各種問題且特別提供 一種板對板電氣連接器總成，該板對板電氣連接器總成可 在一對連接器對接時有效地減少在兩電路板之間的間距且 可有效地防止灰塵與污物進入在該等對接連接器之各個端 子間之接合接觸區域。 【日月内穷—】 發明概要 因此，本發明之一目的是提供一種用以在兩電路板之 間建立連接之新且改良之板對板電氣連接器總成。 在本發明之一例示實施例中，該連接器總成包括—具 有一絕緣殼體之第一連接器，該絕緣殼體包括一用以安裝 在弟電路板上之連接器的安裝面與一具有一對接凹部 之對接面。多數第一端子係安裝在該絕緣殼體上且各端子 包括一用以連接在該第一電路板上之適當電路線路的尾 部，及一大致暴露於該對接凹部處之接觸部份。一第二連 接器具有一絕緣殼體，且該絕緣殼體包括一用以安裝在一 第二電路板上之安裝面，及一用以插入該第一連接器之對 接凹部的對接突起。多數第二端子係安裝在該第二連接器 之絶緣殼體上且各第二端子包括一用以連接在該第二電路 =之適當電路線路，及一用以結合該第一連接器之各第 構觸部份。該等第-與第二連接器之絕緣殼體係 體該等連接器對接時，使安裝在該第二連接器之殼 H路㈣_第—連接器之殼體之對接凹部。 哭因為該第一連接器之第二電路板封閉了該第—連接 2财接凹部，故灰塵與污物無法進人在兩連接器之端子 4間之介面接觸區域。 體之該等第—端子係安裝在該第—連接器之絕緣殼 等連I子容納通道中，兩連接器之殼體係構成為當該 • 1 接崎接時，使絲在該第二連接H之鐘上之第二 :施:ΐ閉該!一連接器之殼體之端子容納通道。在較佳 二I，該第二連接器之絕緣殼體的尺寸係當該等連接 接可大致完全地設置在該第一連接器之殼體之對 依據轉明之—舰，該等第―端子係絲在該第— ^之絕緣殼體甲之對接凹部之内緣處多數端子容納通 二:該等容納通道在其外側處為封閉且在其内側處具有 凹部連通之開口。各第一端子包括一固定連接在 =立各納通道中之本體部份，各第一端子之第一臂部由 ^部份之―端突出並通過該第—連接器之絕緣殼體， ^定出用以連接該第-電路板之尾部。各第-端子之第 ^部由該本體部份之相對端突出進入該對接凹部且界定 用以結合該第二連接器之各第二端子之接觸部份。 康本發明之另—特徵，該等第二端子係安裝在該第 200414635 二連接器之絕緣殼體之外緣處的多數端子容納通道中，該 等容納通道在其内側處為封閉且在其外側處具有開口。各 第二端子包括一固定連接在各端子容納通道中之本體部 份，各第二端子之第一臂部由該本體部份之一端突出該第 5二連接器之絕緣殼體，且界定出用以連接該第二電路板之 尾部。各第二端子之第二臂部由該絕緣殼體突出且界定出 用以結合該第-連接器之各第一端子之接觸部份。在本發 明中，各第二端子之第-臂部係在其面對該第二電路板之 一側向外凸以形成一焊料儲存凹穴，以便該第二蠕子之尾 ίο部焊接至該第二電路板之各電路線路。 依據本發明之再-特徵，該第一連接器之絕緣殼體包 括-在該對接凹部之底壁中的定位孔，該第二連接器之絕 緣殼體包括-用以在對接該等連接器時插入該定位孔的定 位突起，且該定位突起具有圓緣侧以便將該定位突起導入 15該定位孔。在本發明之實施例中，在該第一連接器之絕緣 殼體之對接凹部大致為矩形，而在該矩形凹部之四個角落 設有四個定位孔，且在該第二連接器之絕緣殼體上設有四 個互補之定位突起。 本毛月之”他目的、特徵與優點可由以下詳細說明並 20 配合附圖而了解。 圖式簡單說明 吾人相信是新的本發明之特徵係特别揭露在以下申請 專利範圍中，本發明與其目的與優點可藉由參照以下說明 亚配合附圖而最佳地了解，其中類似之標號表示在圖中之 10 200414635 類似元件： 、第1圖是-本發明之第—實施例之板對板電氣連接器 、’K*成的立體圖，且部伤為載面圖與虛線； 第2圖是第1圖之總成之實線部份之放大、部份立體圖. 第3圖是一類似以圖之視圖，但只有安裝於―第二電 路板上之母連接器係以虛線顯示； ^ 第4圖是一類似第1圖之視圖，但只有安裝於一第二電 路板上之公連接器係以虛線顯示； 一― 10 15 第5圖是該等公與母連接器在未對接狀態時之一部份 為截面之部份立體圖； 77 第6圖是該母連接器之俯視平面圖； 第7圖是朝第6圖之箭號“VII”之方向看去 器之側視平面圖； 接 第8圖是朝第6圖之箭號“VIII”之方向看去之母連接 器之側視平面圖； 第9圖是該公連接器之俯視平面圖； 第10圖是朝第9圖之箭號“X”之方向看去之公連接器 之側視平面圖； ° 第11圖是朝第9圖之箭號“ΧΙ”之方向看去之公連接 20 器之側視平面圖； 第12圖是通過在未對接狀態時之該等公與母連接器之 放大垂直截面圖； 第13圖是類似於第12圖之視圖，但該等公與母連接器 係在一對接之初始位置； 200414635 第W圖是類似於第13圖之視圖，但該等連接器係在更 進一步對接之位置； 第15圖是類似於第η圖之視圖，但該等連接器已完全 對接； 5 第丨6圖是第15圖之“XVI”處圈起區域之放大圖； 第Π圖是大致沿第1圖之線χνπ-χνίΐ截取之放大垂直 截面圖； 第18-21圖係類似於第1-4圖之視圖，但是顯示的是本發 明的第二實施例； 10 弟22-25圖係類似於第12-15圖之視圖，但是顯示的是本 發明的第二實施例； 第26圖是大致沿第18圖之線26-26截取之放大垂直截 面圖；及 第27-31圖是已在前述“背景”中說明之習知連接器 15 總成之視圖。 I：實施方式3 較佳實施例之詳細說明 請詳細參閱各圖，第1-17圖顯示本發明之第一實施 例，且第18-26圖顯示本發明之第二實施例。請先參閱第M7 20 圖之實施例，本發明係結合在一大致以72表示之板對板電 氣連接器總成中，且該板對板電氣連接器總成包括一大致 以73表示且可與一大致以74表示之第二或公連接器對接的 第一或母連接器。母連接器73係表面安裝至一第一印刷電 路板75，且公連接器74係表面安裝至一第二印刷電路板 12 200414635200414635 发明 Description of the invention: I: Technical field to which the invention belongs] FIELD OF THE INVENTION The present invention relates generally to the technology of electrical connectors, and in particular relates to a general electrical connector used to connect between two circuit boards. to make. BACKGROUND OF THE INVENTION A variety of electrical connectors have been used to connect circuits 10 on different printed circuit boards. These printed circuit boards must be capable of effectively and reliably connecting circuits on one circuit board to another circuit board. On the way of the circuit, the connection benefits are combined together. This is achieved by a pair of mating connectors, and the mating connectors are surface mount connectors and may include a male or plug connector mated with a female or socket connector to form a "board-to-board," 15 Electrical connector assembly. Here, FIG. 27 shows an example of a typical board-to-board electrical connector assembly disclosed in Japanese Patent Laid-Open Publication No. 08-148240A (Figure 9). As shown in FIG. A plug or male connector indicated by 32 is inserted into a socket or female connector indicated by 34 in the direction of arrow A ". The male connector 20 includes a majority of the majority of the conductive terminals 36, and the conductive terminals 36 and Most of the female terminals of the female connector are bonded. The terminals 36 of the plug connector 32 are connected to a circuit 40 on a first circuit board c through a plurality of solder connection portions 44, and the female connector 34 is connected to a circuit on the second circuit board 48 through a plurality of solder connection portions. Line 46. In the case of these connectors, 5 solid lines indicate their unmated states and dotted lines indicate their mated states. With the trend towards miniaturization of the entire system and thus miniaturization of all electrical components in the electronics industry, board-to-board electrical connectors must not only have a low profile, but also in the case where two circuit boards are mated, in such circuit boards The distance "S" between 5 must be as small as possible. Unfortunately, as the number of terminals and the number of solder connection portions 44 and 50 increase, it is difficult to reduce the distance "S" between two circuit boards. Therefore, there have been methods for reducing this pitch in the prior art, such as those disclosed in Japanese Patent Laid-Open Publication No. 2001-273949 and shown here in FIGS. 28 and 29. As shown in the figure, a female connector indicated generally at 52 houses a male connector indicated generally at 53. The male connector is surface-mounted to a first circuit board 54 and the female connector 52 is surface-mounted to一 second circuit board 55. At the same time, these connectors are shown in Fig. 29 with a solid line to indicate their unmated state and a dotted line to indicate that the male connector is in its fully mated state. 15 The male connector can be mated with the female connector in the direction of the arrow "A" (Figure 29). The male connector 53 includes a plurality of conductive terminals connected to the appropriate circuit lines on the circuit board 54 by a plurality of solder connection portions 44, and the female connector 52 includes a plurality of conductive terminals 20 connected to the appropriate circuit lines on the circuit board 55. 57. In order to reduce the distance between the circuit boards 54 and 55 when the connectors 52 and 53 are mated as shown in FIG. 29, the mating surface 58 of the female connector 52 has a recessed area that receives the solder connection portion 44 of the male connector 53. 59. The recessed area is not shown in Fig. 28. By providing a recessed area in the mating surface of the female connector, the circuit boards 54 and 55 can be closer together at 6 414635 when the connectors are mated. Unfortunately, the conventional connectors shown in Figures 27 and 28 and 29 both have dust and dirt that can enter the mating interfaces of these connectors and accumulate on the mating terminals, which will be caused by The accumulation of dust and dirt makes the electrical and gas contact ineffective. Access to the mating terminals in Figure 27 is quite clear, and Figure 29 shows how the recessed area 59 opens on the side of the connector assembly so that dust and dirt can enter the connection interface of these terminals. FIG. 30 shows another prior art electrical connector assembly disclosed in Japanese Laid-Open Publication No. 2000-26605005 (Figure 1), as shown in FIG. The connector 60 can be mated with a female connector 62. The male connector includes a plurality of conductive terminals 63 having a contact portion 64, and the terminals 63 are combined with the contact portions 65 of most of the conductive terminals 66 of the female connector 62. The terminal 63 of the male connector is connected to an appropriate circuit on a first circuit board 68 through a solder connection 44 and the terminal 66 of the female connector 62 is connected to a second circuit through a solder connection 44 15 Appropriate circuit wiring 69 on the board 70. The connector structure shown in FIG. 30 indicates that another disadvantage of the board-to-board connector assembly is that it is difficult to determine when the male and female connectors are fully mated, in other words, the contact of the terminal 66 of the female connector 62 The portion 65 spans only along the straight surface of the contact portion 64 of the terminal 63 of the male connector 60. The smooth sliding relationship between the contact portions 20 of the two connectors does not produce any sensory indication or "feel" when the connectors are mated. ~ In order to solve the aforementioned problem of the conventional connector assembly shown in FIG. 30, the figure shows-the terminal 63 having a contact portion 64, and the contact portion can be-corresponding to the aforementioned terminal of Fig. 30 The contact part of terminal ^ is 7-way. However, it should be noted here that in Fig. 31, the terminal 63 has a recessed or cut-out area 71, and the contact portion 65 of the terminal 66 "clicks in. This recessed area 71 provides a certain This form of sensory indication. Unfortunately, due to the miniaturization of these connector assemblies, this recessed area 71 has become too small so that the operator actually has only a very small "feel". The present invention is intended to solve the aforementioned problems of the prior art. Various problems and a board-to-board electrical connector assembly are particularly provided. The board-to-board electrical connector assembly can effectively reduce the space between two circuit boards when a pair of connectors are mated, and can effectively prevent dust and Dirt enters the joint contact area between the terminals of these mating connectors. [Sun and Moon are poor—] SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a new and new method for establishing a connection between two circuit boards. Improved board-to-board electrical connector assembly. In an exemplary embodiment of the present invention, the connector assembly includes a first connector having an insulating housing, the insulating housing including A mounting surface of a connector for mounting on a circuit board and a mating surface having a pair of connecting recesses. Most first terminals are mounted on the insulating housing and each terminal includes a connection for connecting to the first circuit board. A tail portion of a suitable circuit line, and a contact portion that is substantially exposed at the butt recess. A second connector has an insulating housing, and the insulating housing includes a housing for mounting on a second circuit board. A mounting surface, and a mating protrusion for inserting the mating recess of the first connector. Most of the second terminals are mounted on the insulating housing of the second connector and each of the second terminals includes a connector for connecting to the first connector. Two circuits = appropriate circuit lines, and a first contacting portion used to combine the first connector. When the first and second connectors are connected to the insulating housing system, the connectors are installed in The second connector's shell H ㈣ _ first-butt recess of the connector's shell. Crying because the second circuit board of the first connector closes the first-second connector's recess, so dust and dirt Can't get in between the two connectors The interface contact area between the sub 4. The first terminal is installed in the insulating housing of the first connector and the second sub accommodating channel, and the housing of the two connectors is configured when the • 1 connection is connected. The second connection of the wire on the bell of the second connection H: Shi: close the terminal receiving channel of the housing of a connector. In the preferred second I, the size of the insulating housing of the second connector When the connection joints can be arranged substantially completely in the pair of housings of the first connector, the first-terminal wires are in the butt recesses of the first insulating shells. Most of the terminals are accommodated in the second edge: these accommodation channels are closed at their outer sides and have recessed openings at their inner sides. Each of the first terminals includes a body part fixedly connected to the passage of each leg, each The first arm portion of the first terminal protrudes from the end of the first portion and passes through the insulating housing of the first connector to define a tail portion for connecting the first circuit board. The ^ th part of each of the -terminals protrudes from the opposite end of the body part into the mating recess and defines a contact part for combining the second terminals of the second connector. Another feature of the present invention is that the second terminals are installed in most of the terminal receiving channels at the outer edge of the insulating housing of the 200414635 second connector, and the receiving channels are closed at their inner sides and in their There is an opening at the outside. Each second terminal includes a body portion fixedly connected to each terminal receiving channel, and the first arm portion of each second terminal protrudes from the one end of the body portion to the insulating housing of the 52nd connector and defines Used to connect the tail of the second circuit board. The second arm portion of each second terminal protrudes from the insulating housing and defines a contact portion for combining the first terminal of the first connector. In the present invention, the first-arm portion of each second terminal is convex outward on one side thereof facing the second circuit board to form a solder storage recess, so that the tail portion of the second worm is soldered to Each circuit of the second circuit board. According to a further feature of the present invention, the insulating housing of the first connector includes-a positioning hole in the bottom wall of the mating recess, and the insulating housing of the second connector includes-for docking the connectors The positioning protrusion is inserted into the positioning hole at the time, and the positioning protrusion has a rounded edge side so as to introduce the positioning protrusion into 15 the positioning hole. In an embodiment of the present invention, the mating recesses of the insulating housing of the first connector are substantially rectangular, and four positioning holes are provided at four corners of the rectangular recess, and the insulation of the second connector is The housing is provided with four complementary positioning protrusions. The purpose, characteristics and advantages of "Mao Yuezhi" can be understood from the following detailed description and the accompanying drawings. The figure briefly illustrates that the features of the invention that I believe are new are specifically disclosed in the scope of the following patent applications, and the invention and its purpose The advantages and advantages can be best understood by referring to the following description of the sub-matching drawings, wherein similar reference numerals indicate 10 200414635 similar elements in the figure: Figure 1 is-the first embodiment of the present invention-board-to-board electrical Connector, 'K *' is a perspective view, and the partial injury is a load surface view and a dotted line; Figure 2 is an enlarged, partial perspective view of the solid line part of the assembly of Figure 1. Figure 3 is a similar to the figure View, but only the female connector mounted on the second circuit board is shown with a dashed line; ^ Figure 4 is a view similar to Figure 1, but only the male connector mounted on a second circuit board It is shown by dashed lines; ― 10 15 Figure 5 is a partial perspective view of the male and female connectors when they are not docked in a section; 77 Figure 6 is a top plan view of the female connector; Figure 7 Pictured is the arrow "VII" towards Picture 6. Side view plan view of the direction connector; Figure 8 is a side plan view of the female connector when viewed in the direction of the arrow "VIII" in Figure 6; Figure 9 is a top plan view of the male connector; Figure 10 is a side plan view of the male connector viewed in the direction of the arrow "X" in Figure 9; ° Figure 11 is a male connector 20 viewed in the direction of the arrow "X1" in Figure 9 Side plan view; Figure 12 is an enlarged vertical sectional view of the male and female connectors in an unmated state; Figure 13 is a view similar to Figure 12, but the male and female connectors are In the initial position of the butt joint; 200414635 Figure W is a view similar to Figure 13 but the connectors are in a further docking position; Figure 15 is a view similar to Figure η but the connectors Completely docked; 5 Figures 6 and 6 are enlarged views of the circled area at "XVI" in Figure 15; Figure Π is an enlarged vertical cross-sectional view roughly taken along the line χνπ-χνίΐ in Figure 1; Figures 18-21 The drawing is similar to the views of Figs. 1-4, but shows a second embodiment of the present invention; Figure 2-25 is a view similar to Figures 12-15, but shows a second embodiment of the present invention; Figure 26 is an enlarged vertical cross-sectional view taken generally along line 26-26 of Figure 18; and Figure 27-31 is a view of the conventional connector 15 assembly already described in the "Background" above. I: Detailed description of the preferred embodiment of Embodiment 3 Please refer to the drawings in detail, and Figures 1-17 show the present invention The first embodiment is shown in Figs. 18-26, and the second embodiment of the present invention is shown in Figs. 18-26. Please refer to the embodiment shown in Figs. M7 and 20. The present invention is a board-to-board electrical connector It is completed, and the board-to-board electrical connector assembly includes a first or female connector generally indicated by 73 and which can be docked with a second or male connector generally indicated by 74. The female connector 73 is surface-mounted to a first printed circuit board 75, and the male connector 74 is surface-mounted to a second printed circuit board 12 200414635
接0 因此，兩連接器 73與74在兩電路板75輿76之間建立連 5 1〇 15 詳而言之，請特別參閱第6-8圖與第 包括-大致以77表示且呈矩形並且可由_材料 而成的絕緣殼體。多數A致以78表示之導電端抑係安裝 在殼體77中，該等端子係沿著該殼體之兩側配置，如第6圖 所不。_金屬❹τ79無贿在料側μ落處結合以 將該母連接器固定連接至電路板75,而該等嵌釘如習知般 地焊接至在該電路板上之適當安裝墊。 母連接裔73之殼體77包括一大致以77a表示之對接 面，且該對接面77a具有-用以容納公連接器74於其中的對 接凹部77b，而該對接凹部係由該殼體之相對側77〇與相對 側77d圍成。該對接凹部具有一底壁77e，該底壁設有四 個在矩形對接凹部77b之四個角落處貫通其中之定位孔 80，如第6圖所不。該殼體設有四個供嵌釘79壓入嵌合之槽 孔77g’最後，多數端子容納通道82通過該殼體之相對侧77d 而形成以將多數端子78在該連接器之相對側處安裝成兩 排〇 請特別參閱第9-11圖以及第^圖，公連接器74包括一 2〇大致以83表示之大致為矩形、模製塑膠殼體，該殼體83之 尺寸係小到當該等公與母連接器如第丨與2圖所示般對接 時，足以完全放置在母連接器73之殼體77之對接凹部77b 内。殼體83安裝有多數大致以g4表示之多數導電端子，該 等端子84係安裝在該殼體之相對側處之多數端子容納通道 13 200414635 中兩金屬肷釘85係壓入嵌合在該殼體之相對端處之〆 對槽孔83b中並且藉自，例如焊接而固定在電路板％之適當 安裝墊上。端子容納通道83a與槽孔83b由該殼體之一上表 面83c與一下表面83d延伸出來，如以下所詳述者，端子84 5之接觸部伤係暴露在殼體83之相對側處。該殼體具有在嵌 釘85之相對側處向外凸出之角落部份83f，最後，四個定位 突起86與殼體83—體模製在該矩形殼體之四個角落處以便 在該等連接器對接時定位於該母連接器73之殼體77之定位 孔80中（第6圖）。該等定位突起86之邊緣形成圓緣以導引該 10等定位突起86進入定位孔8〇中。 請參閱第2與12圖，延伸通過該母連接器73之殼體77之 相對側77d的該等端子容納通道82在其外側是封閉的且在 其内側是開口的。換言之，容納通道82與該母連接器之對 接凹部77b連通。各端子78包括一主體部份78a，該主體部 15 份78a具有用以在各個容納通道82之相對側處咬入該殼體 之塑膠材料中的齒78b。該等端子可由導電片狀金屬材料鍛 壓成形，且齒78b係在主體部份78a之相對邊緣處锻壓成 形。一第一臂部78c由主體部份78a之一端凸出通過該絕緣 殼體且形成一用以連接電路板75之適當電路線路75a(第3 20 圖）的尾部，而一第二臂部78d由主體部份78a之相對端凸出 且進入對接凹部77b到達接觸部份78e以如以下所述地結合 公連接器74之其中一端子84的接觸部份。如第12圖所示， 接觸部份78e係構成為圓形且標號78f表示該接觸部份凸入 對接凹部77b最遠且距離該主體部份78a最遠的點。該圓形 14 200414635 接觸部份之邊緣A 返78g之邊緣以一角度向後延伸朝 向該主體部份78a，而該遠端78g則以一較最遠凸入點78f較 少或較短之距離凸入該對接凹部。當該端子84之接觸部份 滑動超過最遠凸入點78fB寺，這結構迫使該等第一與第二連 5 接器連接在一起。 仍請參閱第2與12圖’在公連接器74之殼體83中之端子 容納通道83a係位在該殼體之相對邊緣處，因此，該等容納 通道係在其内側是封閉的且在其外側是開口的。各端子84 包括一主體部份84a，且該主體部份84a在其相對邊緣處具 10有多數用以在該各端子容納通道83a之相對邊緣處咬入該 塑膠材料的齒84b，類似於端子78，端子84係由導電片狀金 屬材料鍛壓成形，且齒84b係在該主體部份84a之相對邊處 锻壓成形，因此該等端子可以壓入嵌合於容納通道83a中。 公連接器74之各端子84包括一第一臂部84c，該第一臂 15部84c由主體部份84a之一端凸出絕緣殼體83且界定出一用 以連接在電路板76之電路線路76a(第4圖）的尾部，第一臂部 84c係彎曲成使它可以在其面對電路板76之一側外凸以形 成一外凸段84d，該外凸段84d具有用以藉由表面張力儲存 焊料87的焊料儲存凹穴，以便在第一臂部84c與在電路板76 20之各個電路線路76a之間建立一良好的焊接。 公連接裔74之端子84更包括一在84f處由主體部份84a 向外彎曲至由各個端子容納通道83a向外突出之接觸部份 84g的第一臂部84e，以結合母連接器乃之各個端子％之接 觸部份78e。 15 200414635 弟12-17圖係顯tf當该公連接器74與該母連接哭73對 接日守’連接益7 3與7 4之連續視圖’該公連接器朝箭费‘‘ a” (弟12圖）之方向插入該母連接器之對接凹部77b。由於具有 設置有焊料87用之焊料儲存凹穴之公連接器74之端子料之 外凸段84d，故在該等電路板之間之最後間距可在該等連接 器完全對接後減少。 第13圖顯示公連接器74之端子84之接觸部份84g已與 母連接器73之端子78與接觸部份78e結合，這是當公連接器 74朝箭號“A”之方向插入該母端子之對接凹部77b時，各 10個連接器之端子之首次結合。 當公連接器74進一步與母連接器73對接時，公連接器 15 20 之端子84之接觸部份係沿著母連接器之端子冗之接觸部份 跨設’如第14圖鮮。#料接觸部份被向外偏壓時， 該等端子之賴縣最舰跨置㈣餘該端刊之接觸 部份之最遠凸入點78f’如第14圖之實線與虛線所示。 第15-18圖顯示當該公連接器完全插入該母連接器之 對接凹部7科’公連接n74與母連接的完全對接。在第 15圖中可以相公連接器之贿83已完全置於該母連接器 之殼體77之底壁77e之頂部，此時該公連接器之端子84之接 觸部份已移至料連接器之端子78之接卿份％之遠端 _8g上事實上’该公連接器之端子之接觸部份在第1顶所 示之初始結合點處以最小之結合讀接力結合該母連接哭 之端子之躺部份。當财連接器之端子之接觸部份跨置 在該母連㈣之端子之最遠凸人點78f上時，會需要最大之 16 200414635 力量直到該公連接器之端子之接觸部份到達在該母連接器 之端子之遠端78g之最後對接位置為止，因此在該等連接器 元全對接時將只需要最小對接力即可。這不僅可在所有端 子之間產生良好之接觸結合，而且也在該等連接器之間亦 5提供一良好之鎖扣裝置，並且當該等連接器完全對接時可 產生一可區別之觸覺指示或“感覺”。 第15-17圖亦顯示本發明之一獨特之特徵，其中當該等 連接器對接時，電路板76完全封閉對接凹部77b。事實上， 由於兩連接器之結構形態，不僅該對接凹部77b被完全封 0閉rfij且母連接益之端子78之端子容納通道與該公連接 器之端子容崎道83a在該等端子之對接介面處被完全封 閉。如第15圖所示’不僅該公連接器之殼體83亦完全被收 納在該對接⑽，同_公連接^之錢亦實質地設 置在該對接凹部内。因此，電路板76結合該母連接器之對 15接面77a’如第15圖所示，且完全環繞對接凹部以形成 -封閉空間90。故，可防止灰塵與污物進人在該等連接器 之間之介面區域，且可防止灰塵與污物無法堆積在該等端 子之接觸部份上，否則將會污染該等端子接觸部份之結合 表面。為了確使該印刷電路板76封閉該對接凹部]，前述 2〇端子形態使該等連接器可以在該等公連接器之接觸部份跨 置在該等母連接H之最遠凸人點78f上時—起被拉動。即使 該電路板76與該殼體77未完全共平面，如此亦可迫使該電 路板顺殼體77之相對側77d保持接觸。當在沒有這拉動之 情形下使用端子時，-或多個端子會保持電氣連續性且部 17 200414635 份地滑動而互相分離’此時’該電路板之一邊緣會遠離該 殼體而使該對接凹部77b可能受到污染。 第18-22圖顯示本發明之結合在一大致以1〇1表示之板 對板電氣連接器總成中之第二實施例，且該板對板電氣連 5 接器總成包括一大致以107表示的第一或母連接器，及一大 致以109表示之第二或公連接器。該母連接器亦係表面安裝 至一第一印刷電路板75，且公連接器109係表面安裝至一第 一印刷電路板76。請參閱第18、19與22圖，母連接器1〇7包 括一大致以111表示之呈矩形且安裝有多數大致以113表示 10 之端子之模塑膠殼體。該等端子係以一定之間距沿著該殼 體之兩相對側安裝，如第21圖所示。四個金屬嵌釘115係可 以類似第一實施例所述之方式將該殼體表面安裝在電路板 75上。 母連接器107之殼體111具有被兩相對長側11 ib與兩相 15 對短側111c包圍之對接凹部111a，一中央“島”部沿對接 凹部111a之中央縱向地向下延伸，且該中央島部具有相對 外凸側114a，如第22圖所示。端子113係在該殼體之相對長 側111b處安裝在多數端子容納通道123中，最後，如同在本 發明之第一實施例中一般，四個定位孔112(第21圖）係穿過 20 該殼體之底壁llld(第22圖）而形成。 如第21圖所示，母連接器107之殼體111在中央島部U4 之相對側上安裝有兩排端子113,該等端子係由導電片狀金 屬材料鍛壓成形，且該等端子之構型係顯示於第22圖中。 詳而言之，該等端子安裝在該殼體之相對長側111b中，各 18 端子包括大在側向上大致為E形之主要水平部份ii7a ; —壓 入喪合該通道之孔123a之中央腿117b; —位在該通道之溝槽 部123b中且在該殼體之相對長側mb内側之内側腿ii7c ; 及一在該通道之溝槽123c中且在該殼體之相對長側111]3處 之外側腿117d。一臂120由内側腿117c之遠端向内延伸而遠 離該中央腿117b且靠近該殼體111之底壁，並到達^一端接於 一接觸部份120a之向上延伸臂部120b。臂部120b位在該外 凸側114a中且在該殼體之中央島部114之一側上，臂部i2〇b 與接觸部份120a可如第22圖中之實線與虛線所示地彎曲。 因為臂120比臂部120b更長，故臂120將在該接觸部份12(^ 彎曲遠離該中央腿117b之前，朝向該殼體U1之底壁之方向 ’等曲’這將會在接觸部份12〇a之邊緣與該等接觸臂121a之 間產生較佳之循跡效果。端子113之外側腿ll7d之遠端係藉 由’如焊接而與電路板75之電路線路75a連接，如第21圖所 示。最後，如第22圖所示，殼體ill之相對長側lllb與中央 島部114,以及端子113之内側腿117()、臂12〇與中央島部114 將形成兩沿著該母連接器縱向延伸之對接凹部，如第21圖 所示。 請特別參閱第20與22圖，公連接器1〇9包括一大致以 118表示且安裝有兩排大致以121表示之端子的殼體，該殼 體具有~平坦壁118a與兩在其間形成一長形槽道的長側部 份U8b。端子121係以與母連接器107之相對短側11 lc相同 之數目與相同之間距來安裝，殼體118大致為矩形且四個具 圓緣之定位突起119形成在該殼體之四個角落，如第2〇圖所 200414635 示。最後，端子121係安裝在該殼體之長側部份118b之端子 容納通道124中，如第18圖所示，四個金屬後釘116壓入嵌合 在長側部份118b中以將該公連接器固定連接至電路板76 上。 5 如第22圖所示，各端子121包括一接觸臂121a，且該接 觸臂121a由壓入嵌合於各端子容納通道丨24中之本體部份 121b之一端突出。另一臂121c由本體部份121b之相對端延 伸出來並且形成一用以藉由，例如焊接而連接至電路板76 之電路線路76a(弟20圖）之尾部。接觸臂121a内凹並且其功 10 能類似於端子78之接觸部份78e(第12圖），換言之，一最遠 凸入點121d是由具有一遠端I21e之該内凹接觸臂形成。 第22-26圖是顯示將板對板電氣連接器總成1〇1之第二 貫施例之公連接器109對接於公連接器1〇9之過程的連續視 圖，詳而言之，第23圖顯示公連接器1〇9之端子121之接觸 15臂121a與母連接器之端子113之接觸部份120a開始接觸 時之狀態。端子113之接觸臂部12〇b尚未彎曲。 第24圖顯示當端子113之接觸部份12〇a跨置在接觸臂 121a之最遠凸入點i21d上時，端子121之接觸臂i2ia使端子 113之接觸臂部i2〇b彎曲。 20 第25與26圖顯示公連接器1〇9完全對接於母連接器1〇7 中之狀悲，公連接器1〇9之殼體118之長側部份118b使母連 接器107之對接凹部111a之兩凹部100移動。在此可發現， 類似於第1-17圖之第一實施例，大致整個公連接器1〇9均置 於該母連接器之對接凹部仙内，且電路板76結合該連接 20 200414635 益之级體111之頂對接表面13〇。如此可如第18圖之第—實 施例中所詳述者—般地，將完全封閉該母連接器之對接0 部111a以防止灰塵與污物進入該連接器之對接介面與該等 端子之結合介面。 ' 5 ♦員上’在該等連接器之間將形成-封閉空間129(第 25圖），且當該等連接器對接時，包括端子121之整個公連 接裔109被收納在該封閉空間内。空氣流將無法進入這封閉 空間且因此，灰塵與污物完全不可能進入該封閉空間，故 可有效防止由於灰塵與污物而造成之接觸失效情形。如同 10在第一貫施例中所述者，該端子結構將該等連接器一起拉 出，藉此確使電路板76與該母連接器之殼體U1之頂對接表 面130結合。類似於第一實施例地，這結構組合在高濕度或 會產生腐钱氣體之環境中亦有效。 在此應了解的是本發明可以在不偏離其精神與中心特 15徵之情形下以其他特定形式來實施，因此，以上例子與實 施例無論如何應被視為是說明性而非限制性的，並且本發 明不限於此處所揭露之細節。 C圖式簡單明]| 第1圖是一本發明之第一實施例之板對板電氣連接器 20 總成的立體圖，且部份為截面圖與虛線； 第2圖是第1圖之總成之實線部份之放大、部份立體圖； 第3圖是一類似第1圖之視圖，但只有安裝於一第一電 路板上之母連接器係以虛線顯示； 第4圖是一類似第1圖之視圖，但只有安裝於一第二電 21 200414635 路板上之公連接器係以虛線顯示； 第5圖是該等公與母連接器在未對接狀態時之一部份 為截面之部份立體圖； 第6圖是該母連接器之俯視平面圖； 5 第7圖是朝第6圖之箭號“VII”之方向看去之母連接 器之側視平面圖； 第8圖是朝第6圖之箭號“vm，，之方向看去 器之側視平面圖； ^ 第9圖是該公連接器之俯視平面圖； 10 第10圖是朝第9圖之箭號“X”之方向看去之公連接器 之側視平面圖； 第11圖是朝第9圖之箭號“ΧΓ，之方向看去之公連接 器之側視平面圖； 第12圖是通過在未對接狀態時之該等公與母連接器之 15 放大垂直截面圖； 第13圖是類似於第12圖之視圖，但該等公與母連接器 係在一對接之初始位置； 第14圖是類似於第13圖之視圖，但該等連接器係在更 進一步對接之位置； 20 第15圖是類似於第14圖之視圖，但該等連接器已完全 對接； 第16圖是第15圖之“XVI”處圈起區域之放大圖； 第17圖是大致沿第1圖之線χνΐΐ-χ VII截取之放大垂直 截面圖； 22 200414635 第18-21圖係類似於第1-4圖之視圖，但是顯示的是本發 明的第二實施例； 第22-25圖係類似於第12-15圖之視圖，但是顯示的是本 發明的第二實施例； 5 第26圖是大致沿第18圖之線26-26截取之放大垂直截 面圖；及 第27-31圖是已在前述“背景”中說明之習知連接器 總成之視圖。 【圖式之主要元件代表符號表】 32…插頭連接器 62...母連接器 34...母連接器 63,66…端子 36,38...端子 64,65…接觸部份 40,46···電路線路 68···第一電路板 42…第一電路板 69…電路線路 44,50···焊料連接部 70…第二電路板 48…第二電路板 71…凹陷區域 52...母連接器 72…板對板電氣連接器總成 53…公連接器 73···母連接器 54…第一電路板 74…公連接器 55...第二電路板 75…電路板 56,57...端子 75a…電路線路 58···對接面 76…第二電路板 59...凹陷區域 76a…電路線路 60···公連接器 77···絕緣殼體 200414635 77a…對接面 77b···對接凹部 77c···相對側 77d…相對側 77e...底壁 77f···圓緣處 77g···槽孔 78…端子 78a...主體部份 78b···齒 78c...第一臂部 78d...第二臂部 78e···接觸部份 78f...最遠凸入點 78g…遠端 79…嵌釘 80···定位孔 82...端子容納通道 83···殼體 83a···端子容納通道 83b...槽孔 83c...上表面 83d...下表面 83e...相對側 83f...角落部份 84···端子 84a...主體部份 84b···齒 84c...第一臂部 84d...外凸段 84e...第二臂部 84f."彎曲處 84g...接觸部份 85…嵌釘 86…定位突起 87…焊料 90…封閉空間 100··.凹部 101…板對板電氣連接器總成 107…母連接器 109…公連接器 111···殼體 11 la···對接凹部 111b...相對長側 111c···相對短側 llld...底壁 n2…定位孔 113...端子 24 200414635 114.. .中央島部 114a...相對外凸側 115…嵌釘 116…嵌釘 117···本體部份 117a...水平部份 117b···中央腿 117c...内側腿 117d…外側腿 118…殼體 118a...平坦壁 118b…長側部份 119.. .定位突起 120···臂 120a··.接觸部份 120b…臂部 121···端子 121a."接觸臂 121b...本體部份 121c···臂 121d·.·最遠凸入點 121e".遠端 123…端子容納通道 123a···孔 123b…溝槽部 124...端子容納通道 129…封閉空間 130…頂對接表面 25Connect 0. Therefore, the two connectors 73 and 74 establish a connection between the two circuit boards 75 and 76. 5 1015 For details, please refer to Figures 6-8 and Including-roughly indicated by 77 and rectangular and Can be made of insulating material. Most of the terminals A and 78 are installed in the housing 77, and the terminals are arranged along both sides of the housing, as shown in FIG. 6. The metal ❹τ79 is combined without any bridging on the material side to securely connect the female connector to the circuit board 75, and the studs are conventionally soldered to a suitable mounting pad on the circuit board. The housing 77 of the female connector 73 includes an abutting surface generally indicated by 77a, and the abutting surface 77a has an abutting recess 77b for receiving the male connector 74 therein, and the abutting recess is formed by the opposite side of the casing. The side 77o is surrounded by the opposite side 77d. The docking recess has a bottom wall 77e. The bottom wall is provided with four positioning holes 80 passing through the four corners of the rectangular docking recess 77b, as shown in FIG. The housing is provided with four slotted holes 77g ′ for press-fitting of the studs 79. Finally, most of the terminal receiving channels 82 are formed through the opposite side 77d of the housing to place most of the terminals 78 at the opposite side of the connector. Installed in two rows. Please refer to Figures 9-11 and ^ in particular. The male connector 74 includes a roughly rectangular, molded plastic housing, indicated generally at 83. The size of the housing 83 is as small as When the male and female connectors are docked as shown in FIGS. 1 and 2, it is sufficient to be completely placed in the mating recess 77 b of the housing 77 of the female connector 73. The housing 83 is provided with most of the conductive terminals generally represented by g4. The terminals 84 are installed in the majority of the terminal accommodation channels 13 at the opposite side of the housing. The two metal studs 85 are press-fitted in the housing. The ridge at the opposite end of the body is in the slot 83b and is fixed to a suitable mounting pad of the circuit board by, for example, soldering. The terminal accommodating passage 83a and the slot hole 83b extend from one of the upper surface 83c and the lower surface 83d of the housing. As described in detail below, the contact portion of the terminal 845 is exposed at the opposite side of the housing 83. The casing has corner portions 83f protruding outward at opposite sides of the studs 85. Finally, the four positioning protrusions 86 and the casing 83 are integrally molded at the four corners of the rectangular casing so that When the connectors are mated, they are positioned in the positioning holes 80 of the housing 77 of the female connector 73 (Figure 6). The edges of the positioning protrusions 86 form a rounded edge to guide the 10 positioning protrusions 86 into the positioning holes 80. Referring to Figs. 2 and 12, the terminal receiving channels 82 extending through the opposite side 77d of the housing 77 of the female connector 73 are closed on the outside and open on the inside. In other words, the receiving passage 82 communicates with the mating recess portion 77b of the female connector. Each terminal 78 includes a main body portion 78a having teeth 78b for biting into the plastic material of the housing at opposite sides of each receiving passage 82. These terminals can be forged from a conductive sheet metal material, and the teeth 78b are forged at the opposite edges of the main body portion 78a. A first arm portion 78c protrudes from one end of the main body portion 78a through the insulating case and forms a tail portion of an appropriate circuit line 75a (FIG. 3 20) for connecting the circuit board 75, and a second arm portion 78d It protrudes from the opposite end of the main body portion 78a and enters the butt recessed portion 77b to reach the contact portion 78e to couple the contact portion of one of the terminals 84 of the male connector 74 as described below. As shown in FIG. 12, the contact portion 78e is circular and the reference numeral 78f indicates a point where the contact portion protrudes farthest from the butt recessed portion 77b and is furthest from the main body portion 78a. The edge of the round 14 200414635 contacting part A returns to the edge of 78g at an angle and extends backward toward the main body part 78a, while the distal end 78g is convex at a distance less or shorter than the furthest convex point 78f. Into the butt recess. When the contact portion of the terminal 84 slides beyond the farthest protruding point 78fB, this structure forces the first and second connectors to be connected together. Still referring to FIGS. 2 and 12, the terminal receiving channels 83 a in the housing 83 of the male connector 74 are located at opposite edges of the housing, and therefore, the receiving channels are closed on the inner side and located at Its outside is open. Each terminal 84 includes a main body portion 84a, and the main body portion 84a has a plurality of teeth 84b at the opposite edges thereof for biting the plastic material teeth 84b at the opposite edges of the terminal accommodation channels 83a, similar to the terminals 78. The terminals 84 are forged and formed from a conductive sheet metal material, and the teeth 84b are forged and formed at the opposite sides of the main body portion 84a. Therefore, the terminals can be press-fitted into the receiving channels 83a. Each terminal 84 of the male connector 74 includes a first arm portion 84c. The first arm 15 portion 84c protrudes from the insulation case 83 at one end of the main body portion 84a and defines a circuit line for connecting to the circuit board 76. At the tail of 76a (FIG. 4), the first arm portion 84c is bent so that it can protrude on one side facing the circuit board 76 to form a convex section 84d. The solder storage recess of the surface tension storage solder 87 is to establish a good solder between the first arm portion 84c and each of the circuit lines 76a of the circuit board 7620. The terminal 84 of the male connector 74 further includes a first arm portion 84e which is bent outward from the main body portion 84a at 84f to a contact portion 84g protruding outward from each of the terminal accommodation channels 83a, so as to couple with the female connector. The contact portion 78e of each terminal%. 15 200414635 Brother 12-17 shows tf when the male connector 74 and the female are connected to cry 73 but dock with Rishou 'continuous view of connection 7 and 4' The male connector charges `` a '' (brother (Figure 12) into the mating recess 77b of the female connector. Since there is a projection 84d outside the terminal material of the male connector 74 provided with a solder storage cavity for solder 87, the The final distance can be reduced after these connectors are fully mated. Figure 13 shows that the contact portion 84g of the terminal 84 of the male connector 74 has been combined with the terminal 78 and the contact portion 78e of the female connector 73, which is when the male connection When the connector 74 is inserted into the mating recess 77b of the female terminal in the direction of the arrow "A", the terminals of each of the 10 connectors are combined for the first time. When the male connector 74 is further mated with the female connector 73, the male connector 15 20 The contact portion of the terminal 84 is arranged along the redundant contact portion of the terminal of the female connector, as shown in Fig. 14. When the contact portion of the material is biased outward, the terminals of Lai County are the most span. The longest convex point 78f 'of the contact part of the end issue is set as shown by the solid line and the dotted line in FIG. 14 Figures 15-18 show that when the male connector is fully inserted into the mating recess of the female connector, 7 sections of the male connector n74 are fully mated with the female connector. In Figure 15, it can be said that the bribe 83 of the male connector is completely set. On the top of the bottom wall 77e of the housing 77 of the female connector, at this time, the contact portion of the terminal 84 of the male connector has been moved to the remote end of 8% of the terminal 78 of the material connector. The contact part of the terminal of the male connector is connected to the lying part of the female connection crying terminal with the minimum joint reading force at the initial joint point shown on the top. The contact part of the terminal of the Dangcai connector When straddling the farthest convex point 78f of the female flail terminal, it will require a maximum of 16 200414635 until the contact portion of the male connector's terminal reaches 78g of the distal end of the female connector's terminal. Up to the final mating position, so when the connectors are fully mated, only the minimum mating force will be required. This not only produces a good contact bond between all the terminals, but also provides a good connection between these connectors. A good locking device, and when When the connectors are fully mated, a distinguishable tactile indication or "feel" can be produced. Figures 15-17 also show a unique feature of the present invention, in which the circuit board 76 completely closes the mating recess 77b when the connectors are mated. In fact, due to the structural form of the two connectors, not only the butt recessed portion 77b is completely closed, but the terminal receiving channel of the terminal 78 of the female connector and the terminal accommodating path 83a of the male connector are in the terminals. The docking interface is completely closed. As shown in FIG. 15, 'not only the housing 83 of the male connector is completely housed in the docking butt, but the money with the male connector is also substantially disposed in the docking recess. Therefore, the circuit board 76 is combined with the mating surface 77a 'of the female connector as shown in Fig. 15 and completely surrounds the mating recess to form a closed space 90. Therefore, it can prevent dust and dirt from entering the interface area between the connectors, and can prevent dust and dirt from accumulating on the contact parts of the terminals, otherwise the contact parts of the terminals will be polluted Of bonding surfaces. In order to ensure that the printed circuit board 76 closes the mating recess], the aforementioned 20-terminal configuration allows the connectors to be straddled at the most convex point 78f of the female connection H at the contact portions of the male connectors Upstairs-Pulled. Even if the circuit board 76 and the housing 77 are not completely coplanar, this can force the circuit board to keep in contact with the opposite side 77d of the housing 77. When the terminal is used without this pull,-or the terminals will maintain electrical continuity and the section 17 200414635 slides apart from each other 'at this time' one edge of the circuit board will be away from the housing and the The abutting recess 77b may be contaminated. Figures 18-22 show a second embodiment of the present invention combined in a board-to-board electrical connector assembly indicated generally at 101, and the board-to-board electrical connector 5-connector assembly includes a A first or female connector indicated by 107, and a second or male connector indicated generally by 109. The female connector is also surface-mounted to a first printed circuit board 75, and the male connector 109 is surface-mounted to a first printed circuit board 76. Referring to Figures 18, 19, and 22, the female connector 107 includes a molded plastic case having a rectangular shape generally indicated by 111 and having a plurality of terminals generally indicated by 113. The terminals are installed at a certain distance along two opposite sides of the case, as shown in FIG. 21. The four metal studs 115 can be surface-mounted on the circuit board 75 in a manner similar to that described in the first embodiment. The housing 111 of the female connector 107 has a mating recess 111a surrounded by two opposite long sides 11 ib and two phases 15 pairs of short sides 111c. A central "island" portion extends longitudinally downward along the center of the mating recess 111a, and the The central island portion has a relatively convex side 114a, as shown in FIG. 22. The terminal 113 is installed in the plurality of terminal receiving channels 123 at the relatively long side 111b of the housing. Finally, as in the first embodiment of the present invention, the four positioning holes 112 (FIG. 21) pass through 20 The bottom wall llld (FIG. 22) of the casing is formed. As shown in FIG. 21, the housing 111 of the female connector 107 is provided with two rows of terminals 113 on opposite sides of the central island U4. These terminals are forged and formed from conductive sheet metal materials, and the structure of these terminals is The type is shown in Figure 22. In detail, the terminals are installed in the relatively long side 111b of the housing, and each of the 18 terminals includes a major horizontal part II7a that is generally E-shaped in the lateral direction;-pressed into the hole 123a that fits the channel Central leg 117b;-an inner leg ii7c located in the groove portion 123b of the channel and inside the relatively long side mb of the housing; and a groove 123c in the channel and on the relatively long side of the housing 111] Outer legs 117d at 3 places. An arm 120 extends inward from the distal end of the inner leg 117c, away from the central leg 117b and close to the bottom wall of the casing 111, and reaches an upwardly extending arm portion 120b that is connected to a contact portion 120a at one end. The arm portion 120b is located in the convex side 114a and on one side of the central island portion 114 of the housing. The arm portion i2b and the contact portion 120a can be shown as solid lines and dotted lines in FIG. 22 bending. Because the arm 120 is longer than the arm portion 120b, the arm 120 will be 'equal' toward the bottom wall of the housing U1 before the contact portion 12 (^ bends away from the central leg 117b). A better tracking effect is generated between the edge of the portion 12a and the contact arms 121a. The distal end of the outer leg 11d of the terminal 113 is connected to the circuit line 75a of the circuit board 75 by 'such as soldering, as in section 21 Finally, as shown in FIG. 22, the relatively long side lllb of the housing ill and the central island portion 114, and the inner leg 117 () of the terminal 113, the arm 12 and the central island portion 114 will form two edges. The female connector's longitudinally extending mating recesses are shown in Figure 21. Please refer to Figures 20 and 22 in particular. The male connector 109 includes a terminal generally indicated by 118 and two rows of terminals approximately 121. The housing has a flat wall 118a and two long side portions U8b forming an elongated channel therebetween. The terminals 121 are the same number and the same distance from the relatively short side 11 lc of the female connector 107 For mounting, the housing 118 is substantially rectangular and four positioning protrusions 119 with rounded edges are formed on the housing. Corners, as shown in Figure 20, 200414635. Finally, the terminal 121 is installed in the terminal receiving channel 124 of the long side portion 118b of the housing. As shown in Figure 18, four metal rear nails 116 are pressed in Fitted in the long side portion 118b to fixedly connect the male connector to the circuit board 76. 5 As shown in FIG. 22, each terminal 121 includes a contact arm 121a, and the contact arm 121a is fitted by press-fitting Protruding from one end of the body portion 121b in each terminal receiving channel 24. The other arm 121c extends from the opposite end of the body portion 121b and forms a circuit for connecting to the circuit board 76 by, for example, soldering. The tail of 76a (Figure 20). The contact arm 121a is recessed and its function is similar to the contact portion 78e (Figure 12) of the terminal 78. In other words, a farthest protrusion point 121d is formed by a distal end I21e. The indented contact arm is formed. Figures 22-26 show the continuation of the process of mating the male connector 109 of the second embodiment of the board-to-board electrical connector assembly 101 to the male connector 109. View, in detail, FIG. 23 shows the contact of the terminal 121 of the male connector 10 to the 15 arm 121 a When the contact portion 120a of the terminal 113 of the female connector starts to contact. The contact arm portion 120b of the terminal 113 has not yet been bent. Figure 24 shows that when the contact portion 120a of the terminal 113 is placed across the contact arm When the farthest protrusion point 121a of 121a is on i21d, the contact arm i2ia of the terminal 121 bends the contact arm i2b of the terminal 113. Figures 25 and 26 show that the male connector 10 is fully mated with the female connector 1o. As shown in Fig. 7, the long side portion 118b of the housing 118 of the male connector 107 causes the two recesses 100 of the mating recess 111a of the female connector 107 to move. It can be found here that, similar to the first embodiment of FIGS. 1-17, substantially the entire male connector 109 is placed in the mating recess of the female connector, and the circuit board 76 is combined with the connection 20 200414635. The top abutment surface 13 of the stage body 111. In this way, as detailed in the first embodiment of FIG. 18, the mating part 111a of the female connector will be completely closed to prevent dust and dirt from entering the mating interface of the connector and the terminals. Interface. '5 员 上' will form a closed space 129 (Figure 25) between the connectors, and when the connectors are docked, the entire male connector 109 including the terminal 121 is housed in the closed space . The air flow will not be able to enter this closed space and therefore, it is impossible for dust and dirt to enter the closed space, so it can effectively prevent the contact failure caused by dust and dirt. As described in the first embodiment, the terminal structure pulls the connectors together, thereby making sure that the circuit board 76 is combined with the top abutment surface 130 of the housing U1 of the female connector. Similar to the first embodiment, this structure combination is also effective in an environment with high humidity or the generation of corrosive gas. It should be understood here that the present invention can be implemented in other specific forms without departing from its spirit and central characteristics. Therefore, the above examples and embodiments should be considered as illustrative and not restrictive in any way. And the invention is not limited to the details disclosed herein. Figure C is simple and clear] | FIG. 1 is a perspective view of a board-to-board electrical connector 20 assembly of the first embodiment of the present invention, and a part is a cross-sectional view and a dotted line; FIG. 2 is a general view of FIG. 1 An enlarged and partially perspective view of the solid line part; Figure 3 is a view similar to Figure 1, but only the female connector installed on a first circuit board is shown in dotted lines; Figure 4 is a similar The view in Figure 1, but only the male connector installed on a second electrical 21 200414635 circuit board is shown in dotted lines; Figure 5 is a section of the male and female connectors when they are not docked Partial perspective view; Figure 6 is a top plan view of the female connector; 5 Figure 7 is a side plan view of the female connector when viewed in the direction of the arrow "VII" in Figure 6; Figure 6 is a side plan view of the arrow "vm", ^ Figure 9 is a top plan view of the male connector; 10 Figure 10 is in the direction of the arrow "X" in Figure 9 A side plan view of the male connector when viewed; FIG. 11 is the side of the male connector viewed in the direction of the arrow “χΓ” in FIG. 9 Plan view; Figure 12 is a 15 enlarged vertical sectional view of the male and female connectors in an unmated state; Figure 13 is a view similar to Figure 12, but the male and female connectors are in one Initial position for docking; Figure 14 is a view similar to Figure 13, but the connectors are in a further docking position; 20 Figure 15 is a view similar to Figure 14, but the connectors are completely Butt; Figure 16 is an enlarged view of the circled area at "XVI" in Figure 15; Figure 17 is an enlarged vertical sectional view roughly taken along the line χνΐΐ-χ VII of Figure 1; 22 200414635 Figures 18-21 It is a view similar to Figs. 1-4, but showing a second embodiment of the present invention; Figs. 22-25 are views similar to Figs. 12-15, but showing a second embodiment of the present invention 5 FIG. 26 is an enlarged vertical cross-sectional view taken generally along line 26-26 of FIG. 18; and FIG. 27-31 is a view of a conventional connector assembly that has been described in the foregoing “background”. [Representative symbols for main components of the drawing] 32 ... plug connector 62 ... female connector 34 ... female connector 63,66 ... terminal 36,38 ... terminal 64,65 ... contact portion 40, 46 ... Circuit line 68 ... First circuit board 42 ... First circuit board 69 ... Circuit line 44,50 ... Solder connection portion 70 ... Second circuit board 48 ... Second circuit board 71 ... Recessed area 52 ... female connector 72 ... board-to-board electrical connector assembly 53 ... male connector 73 ... female connector 54 ... first circuit board 74 ... male connector 55 ... second circuit board 75 ... circuit Boards 56,57 ... terminals 75a ... circuit line 58 ... butting surface 76 ... second circuit board 59 ... recessed area 76a ... circuit line 60 ... male connector 77 ... insulation housing 200414635 77a ... butting surface 77b ... butting recess 77c ... opposite side 77d ... opposite side 77e ... bottom wall 77f ... circle edge 77g ... slot 78 ... terminal 78a ... main body portion 78b ... · Tooth 78c ... First arm portion 78d ... Second arm portion 78e ... Contact portion 78f ... The farthest protruding point 78g ... The distal end 79 ... The stud 80 ... The positioning hole 82 ... terminal housing channel 83 ... housing 83 a ... terminal receiving passage 83b ... slot 83c ... upper surface 83d ... lower surface 83e ... opposite side 83f ... corner portion 84 ... terminal 84a ... main body portion 84b ... tooth 84c ... first arm portion 84d ... outer convex portion 84e ... second arm portion 84f. &Quot; bent portion 84g ... contact portion 85 ... stud 86 ... positioning protrusion 87 ... solder 90 ... closed space 100 .... recess 101 ... board-to-board electrical connector assembly 107 ... female connector 109 ... male connector 111 ... shell 11a ... butting recess 111b ... relatively long Side 111c ... relatively short side llld ... bottom wall n2 ... positioning hole 113 ... terminal 24 200414635 114 ... central island 114a ... opposite convex side 115 ... stud 116 ... stud 117 ... ·· Body part 117a ... Horizontal part 117b ··· Central leg 117c ... Inner leg 117d ... Outer leg 118 ... Case 118a ... Flat wall 118b ... Long side part 119 ... Positioning protrusion 120 ... Arm 120a ... Contact part 120b ... Arm 121 ... Terminal 121a ... " Contact arm 121b ... Body 121c ... Arm 121d ... Farthest protrusion point 121e " .Remote end 123 ... Terminal receiving channel 123a ... Hole 123b ... Groove part 124 ... Terminal Receiving channel 129 ... closed space 130 ... top abutment surface 25