201240221 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種電連接器，尤指一種結合性好的電連接 器及其製造方法。 【先前技術】 [0002] 隨著電子科技水平不斷提高’人們對電子產品的品質也 越加重視。例如USB插頭連接器，通常會產生金屬殼體和 絕緣外殼之間的脫膠開裂現象，並且會對使用造成極大 的不便。 [0003] 與本發明相關的習知技街可參照中國大陸專利第 200620166203. 9號所揭示的一種Micro USB結構，其主 要包括：絕緣本體、複數收容於絕緣本體的導電端子、 金屬殼體及包覆在金屬殼體上的絕緣外殼:’絕緣外殼具 有前端面。當注塑絕緣外殼到金屬殼體時，絕緣外殼冷 卻後收縮形成張力，絕緣外熬容，易脫膠開裂’使得金屬 殼體和絕緣外殼之間不能可靠的結合在一起，這個問題 主要顯現在絕緣外殼的前端面與金屬殼體的結合處，由 於此處的絕緣外殼具有相對脆弱的開放邊緣，較易產生 開裂’進而在多次拔插的情況下，絕緣外殼會與金屬殼 體會形成相對的滑移，甚至脫落。 [0004] 是以，有必要提供一種可以解決上述問題的電連接器。 【發明内容】 [0005] 鐾於上述内容’本發明之目的在於提供一種使得絕緣外 殼與金屬殼體緊密結合的電連接器及其製造方法。 100111180 表單煸號A0101 第4頁/共17頁 1002018700-0 201240221 [0006] Ο [0007]201240221 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to an electrical connector, and more particularly to an electrical connector having good bonding and a method of manufacturing the same. [Prior Art] [0002] With the continuous improvement of the level of electronic technology, people pay more attention to the quality of electronic products. For example, a USB plug connector usually produces a debonding crack between the metal casing and the insulating casing, and causes great inconvenience in use. [0003] A micro USB structure disclosed in the Chinese Patent No. 200620166203. 9 may include: an insulative housing, a plurality of conductive terminals housed in the insulative housing, and a metal housing. Insulating housing covered on a metal housing: 'The insulating housing has a front end face. When the insulating casing is injection molded into the metal casing, the insulating casing shrinks to form a tension after cooling, the outer casing is insulated, and the rubber is easily debonded, so that the metal casing and the insulating casing cannot be reliably combined. This problem is mainly manifested in the insulating casing. The joint between the front end surface and the metal shell, because the insulating shell here has a relatively fragile open edge, it is more prone to cracking', and in the case of multiple plugging and unplugging, the insulating shell will form a relative slip with the metal shell. Move or even fall off. [0004] Therefore, it is necessary to provide an electrical connector that can solve the above problems. SUMMARY OF THE INVENTION [0005] In view of the above, it is an object of the present invention to provide an electrical connector that tightly couples an insulating housing to a metal housing and a method of manufacturing the same. 100111180 Form nickname A0101 Page 4 of 17 1002018700-0 201240221 [0006] Ο [0007]
[0008] 本發明之目的係藉以如下技術方案達成的：一種電連接 器，包括絕緣本體、收容於絕緣本體的導電端子、遮蔽 絕緣本體的金屬殼體以及包覆成型於金屬殼體外的絕緣 外殼，所述金屬殼體包括被絕緣外殼包覆的包覆部和顯 露於絕緣外殼外的插頭部，所述絕緣外殼包括依次包覆 於金屬殼體包覆部的第一絕緣外殼及第二絕緣外殼，第 一絕緣外殼具有面向插頭部一側的前端面，所述第一絕 緣外殼自前端面向内凹設有凹口，所述第二絕緣外殼的 部分材料進入凹口而有利於金屬殼體、第一、第二絕緣 外殼之間的固持。 本發明還提供了製造上述電連接器的方法，包括以下步 驟：第一步，提供金屬殼體，其内具有導電端子，該金 屬殼體包括插頭部及包覆部；第二步，在金屬殼體的包 覆部上利用注塑成型技術形成第一絕緣外殼，該第一絕 緣外殼固定於包覆部，且第一絕緣外殼的前端面具有面 向插頭步的凹口；第三步，冷卻第一絕緣外殼後，然後 利用注塑成型技術在第一絕緣外殼的外側成型有第二絕 緣外殼，在注塑成型過程中部分材料進入第一絕緣外殼 的凹口内；第四步，冷卻第二絕緣外殼。 與習知技術相比，本發明電連接器具有如下有益效果： 通過把絕緣外殼分成第一、第二絕緣外殼兩個部分，並 在第一絕緣外殼前端面凹設有凹口，這樣當注塑成型第 二絕緣外殼時，第二絕緣外殼的部分材料進入到凹口中 ，而凹口具有牽制第二絕緣外殼冷卻張口的保持力，從 而達到改善絕緣外殼成型後產生脫膠開裂等不良目的。 100111180 表單編號Α0101 第5頁/共17頁 1002018700-0 201240221 【實施方式】 [0009] 下面結合圖式來詳細說明本發明電連接器之具體實施方 式。 [0010] 請參閱第一圖至第五圖所示，本發明揭示了一種電連接 器100，其包括絕緣本體1、收容於絕緣本體1内的複數導 電端子2、遮蔽絕緣本體1之金屬殼體3 '包覆成型於金屬 殼體外的絕緣外殼4及連接導電端子2且與其構成電性連 接的線鏡5。 [0011] 請參閱第一圖至第三圖所示’絕緣本體1上設置有複數端 ... ... .. ...... ...... ..... . 子收容槽11 ’導電端子2故溶並固持於端子收容槽丨丨内， 線纜5與導電端子2電性相連並通迤注膠使線缆與導電端 子被固置於金屬殼體内。 [0012] 請參閱第二圖、第三圖並結合第五圖所示，所述金屬殼 體3由第一殼體33和第二殼體34組合形成，金屬殼體包括 被絕緣外殼4包覆的包覆部31及顯露於學緣外殼外的供對 接連接器（未圖示）插接的插頭部32，插頭部32獨立成 型於第一殼體33上，而包覆部則由第一、第二殼體33、 34共同圍成。金屬殼體3具有與導端子平行的第一、第二 壁面35a、35b及垂直於第一、第二壁面的第一、第二侧 壁36a、36b，插頭部32於第一壁面35a和第二壁面35b處 對稱設置有方形的孔槽36，孔槽36作為與對接連接器對 接時供對接連接器卡扣之用，避免對接不穩定而導致電 連接器松脫。第一殼體33的第一壁面35a位於包覆部的區 域處凹設有槽部37a，第二殼體34上對應於槽部的位置延 伸有扣部37b，所述扣部37b與槽部37a對接卡合，作為 100111180 表單編號A0101 第6頁/共17頁 1002018700-0 201240221 連接第一、第二殼體33、34的槽部37a和扣部37b不僅限 於上述位置，還可以設置於其他方位。第一殼體的第一 、第二側壁在包覆部區域凹設有通孔38，這裏第一殼體 的侧壁包設於第二殼體侧壁外，這樣當注塑絕緣外殼時 絕緣外殼的材料進入通孔38，增加絕緣外殼4與金屬殼體 3扣合力的同時還可以使第一、第二殼體緊密地連接在一 起。 [0013] Ο ο 請參閱第四圖和第五圖所示，包覆成型於金屬殼體3外的 絕緣外殼4包括第一絕緣外殼41及第二絕緣外殼42 ,第一 、第二絕緣外殼依次包覆於金屬殼體3的包覆部31，第一 絕緣外殼41具有前端面411，第一絕緣外般自前端面411 向内凹設出凹口412 (凹口面向插頭部），所述凹口412 的設置是為了使第二絕緣外殼的部分材料進入。下面詳 細介紹第一、第二絕緣外殼41、42與金屬殼體3的包覆過 程’首先利用一體成型技術將第一絕緣外殼41成型到金 屬殼體3上’成型過程中利用模具使第一絕緣外殼形成自 前端面411凹設的凹口 412，《寺'第一絕緣外殼41冷卻後再 利用一體成型技術形成第二絕緣外殼42，說明一下，在 冷卻第一絕緣外殼41過程中’第一絕緣外殼冷卻收縮， 收縮時會產生張力從而使得第一絕緣外殼41不能很好地 和金屬殼體結合。所以繼成型好第一絕緣外殼41並待其 冷卻後再成型第二絕緣外殼42，成型第二絕緣外殼42過 程中，第二絕緣外殼的部分材料會進入第一絕緣外殼41 的凹口 412中，由於第一絕緣外殼41已冷卻成型，凹口 412具有限制第二絕緣外殼42成型時產生的張力的作用， 100111180 表單編號A0101 第7頁/共π頁 1002018700-0 201240221 待冷卻第二絕緣外殼後，第二絕緣外殼42可有效地固持 於第一絕緣外殼41與金屬殼體3上，這種注塑兩層絕緣外 殼的設計可以有效的避免絕緣外殼與金屬殼體結合不牢 靠的缺點，同時防止絕緣外殼脫膠開裂。在最佳實施例 中，凹口 412設置成與金屬殼體3相通，這樣成型第二絕 緣外殼42時凹口 412對第二絕緣外殼的限制效果更顯著。 [0014] 綜上所述，本發明通過在金屬殼體3上注塑第一絕緣外殼 41 (内層的絕緣外殼）及第二絕緣外殼42 (外層的絕緣 外殼），第一絕緣外殼41上前端面設置出凹口用以限制 成型第二絕緣模組過程中產生張力，使得金屬殼體3、第 一絕緣外殼41、第二絕緣外殼42很好的固持在一起，從 而避免金屬殼體3與絕緣外殼之間產生脫膠開裂現象。以 上僅為本發明的較佳實施例而已，不應以此限制本發明 的範圍，即凡是依本發明申請專利範圍及本發明說明書 内容所作的簡單的等效變化與修飾，皆應涵蓋於以下申 請專利範圍内。 【圖式簡單說明】 [0015] 第一圖係本發明電連接器之立體圖； [0016] 第二圖係本發明電連接器之分解圖； [0017] 第三圖係本發明電連接器另一視角的分解圖； [0018] 第四圖係本發明電連接器金屬殼體與第一絕緣外殼結合 ，與第二絕緣外殼分離的立體圖；及 [0019] 第五圖係第一圖沿V-V線的剖示圖。 【主要元件符號說明】 100111180 表單編號A0101 第8頁/共17頁 1002018700-0 201240221[0008] The object of the present invention is achieved by the following technical solutions: an electrical connector, including an insulative housing, a conductive terminal received in the insulative housing, a metal housing shielding the insulative housing, and an insulative housing overmolded from the metal housing The metal casing includes a covering portion covered by the insulating casing and a plug portion exposed outside the insulating casing, the insulating casing including a first insulating casing and a second insulation which are sequentially covered on the cladding portion of the metal casing a first insulative housing having a front end face facing a side of the plug portion, the first insulative housing being recessed from the front end face with a recess, a portion of the material of the second insulative housing entering the recess to facilitate the metal housing And the holding between the first and second insulating shells. The present invention also provides a method of manufacturing the above electrical connector, comprising the steps of: providing a metal housing having a conductive terminal therein, the metal housing including a plug portion and a cladding portion; and a second step, in the metal Forming a first insulating housing on the covering portion of the housing by injection molding, the first insulating housing is fixed to the covering portion, and the front end surface of the first insulating housing has a notch facing the plug step; After an insulative housing, a second insulative housing is then formed on the outside of the first insulative housing by injection molding, and part of the material enters the recess of the first insulative housing during the injection molding process; and in the fourth step, the second insulative housing is cooled. Compared with the prior art, the electrical connector of the present invention has the following beneficial effects: by dividing the insulating outer casing into two parts of the first and second insulating outer casings, and recessing a recess at the front end surface of the first insulating outer casing, so that when injection molding When the second insulating shell is molded, part of the material of the second insulating shell enters the recess, and the recess has a holding force for holding the second insulating shell to cool the opening, thereby achieving the purpose of improving the debonding cracking after the insulating shell is formed. 100111180 Form No. Α0101 Page 5 of 17 1002018700-0 201240221 [Embodiment] [0009] Specific embodiments of the electrical connector of the present invention will be described in detail below with reference to the drawings. [0010] Referring to the first to fifth figures, the present invention discloses an electrical connector 100 including an insulative housing 1, a plurality of conductive terminals 2 received in the insulative housing 1, and a metal shell shielding the insulative housing 1. The body 3' is an overmolded outer casing 4 that is formed over the metal casing and a wire mirror 5 that is connected to the conductive terminal 2 and electrically connected thereto. [0011] Please refer to the first to third figures as shown in the 'insulating body 1 is provided with a plurality of ends ............................. The receiving slot 11 is electrically dissolved and held in the terminal receiving slot, and the cable 5 is electrically connected to the conductive terminal 2 and is glued to secure the cable and the conductive terminal to the metal housing. [0012] Referring to the second and third figures, and in conjunction with the fifth figure, the metal casing 3 is formed by a combination of a first casing 33 and a second casing 34, and the metal casing includes an insulated casing 4 The covered cover portion 31 and the plug portion 32 of the mating connector (not shown) exposed outside the learning edge housing, the plug portion 32 is independently formed on the first housing 33, and the covering portion is 1. The second housings 33, 34 are enclosed together. The metal casing 3 has first and second wall faces 35a, 35b parallel to the lead terminals and first and second side walls 36a, 36b perpendicular to the first and second wall faces, and the plug portion 32 is on the first wall face 35a and The two wall faces 35b are symmetrically disposed with a square hole groove 36. The hole groove 36 serves as a buckle for the docking connector when docked with the mating connector, so as to prevent the docking instability and the electrical connector from loosening. The first wall surface 35a of the first housing 33 is recessed with a groove portion 37a at a region of the covering portion, and the second housing portion 34 has a buckle portion 37b extending at a position corresponding to the groove portion, and the buckle portion 37b and the groove portion 37a docking engagement, as 100111180 Form No. A0101 Page 6 / Total 17 pages 1002018700-0 201240221 The groove portion 37a and the buckle portion 37b connecting the first and second housings 33, 34 are not limited to the above positions, and may be provided in other positions. Orientation. The first and second side walls of the first housing are recessed in the covering portion region with a through hole 38, wherein the side wall of the first housing is disposed outside the sidewall of the second housing, so that the insulating housing is molded when the insulating housing is molded The material enters the through hole 38, and increases the fastening force of the insulating case 4 and the metal case 3, and the first and second cases can be closely connected together. [0013] Referring to the fourth and fifth figures, the insulative housing 4 overmolded outside the metal housing 3 includes a first insulative housing 41 and a second insulative housing 42, first and second insulative housings The first insulating housing 41 has a front end surface 411, and a first recess 412 is recessed inwardly from the front end surface 411 (the recess faces the plug portion). The notch 412 is provided to allow a portion of the material of the second insulative housing to enter. The following describes in detail the coating process of the first and second insulating casings 41, 42 and the metal casing 3. First, the first insulating casing 41 is molded onto the metal casing 3 by an integral molding technique. The insulating housing is formed with a recess 412 recessed from the front end surface 411. After the first insulating shell 41 of the temple is cooled, the second insulating housing 42 is formed by an integral molding technique. An insulating case is cooled and contracted, and tension is generated when contracted so that the first insulating case 41 does not bond well with the metal case. Therefore, after the first insulating housing 41 is formed and cooled, the second insulating housing 42 is molded. During the molding of the second insulating housing 42, part of the material of the second insulating housing enters the recess 412 of the first insulating housing 41. Since the first insulating case 41 has been cooled and formed, the notch 412 has a function of restricting the tension generated when the second insulating case 42 is formed, 100111180 Form No. A0101 Page 7 / Total π page 1002018700-0 201240221 Second insulating case to be cooled After that, the second insulative housing 42 can be effectively held on the first insulative housing 41 and the metal housing 3. The design of the insulative two-layer insulative housing can effectively avoid the disadvantage that the insulative housing is not securely coupled to the metal housing. Prevent the insulation shell from debonding and cracking. In the preferred embodiment, the recess 412 is disposed in communication with the metal housing 3 such that the restriction of the recess 412 to the second insulative housing is more pronounced when the second insulating housing 42 is formed. [0014] In summary, the present invention injects a first insulating housing 41 (inner insulating housing) and a second insulating housing 42 (insulating housing of the outer layer) on the metal housing 3, the front end surface of the first insulating housing 41 The recess is provided to limit the tension generated during the molding of the second insulating module, so that the metal casing 3, the first insulating casing 41 and the second insulating casing 42 are well held together, thereby avoiding the metal casing 3 and the insulation. Debonding and cracking occur between the outer casings. The above are only the preferred embodiments of the present invention, and the scope of the present invention should not be limited thereto, that is, the simple equivalent changes and modifications made by the scope of the present invention and the contents of the description of the present invention should be Within the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0015] The first drawing is a perspective view of an electrical connector of the present invention; [0016] The second drawing is an exploded view of the electrical connector of the present invention; [0017] The third drawing is an electrical connector of the present invention. An exploded view of a viewing angle; [0018] FIG. 4 is a perspective view of the electrical connector metal housing of the present invention in combination with the first insulating housing, separated from the second insulating housing; and [0019] FIG. 5 is a first view along the VV A cross-sectional view of the line. [Main component symbol description] 100111180 Form number A0101 Page 8 of 17 1002018700-0 201240221
[0020] 電連接器： 100 [0021] 絕緣本體： 1 [0022] 端子收容槽 ：11 [0023] 導電端子： 2 [0024] 金屬殼體： 3 [0025] 包覆部：31 [0026] 插頭部：32 [0027] 第一殼體： 33 [0028] 第二殼體： 34 [0029] 第一壁面： 35a [0030] 第二壁面： 35b [0031] 孔槽：36 [0032] 第一側壁： 36a [0033] 第二側壁： 36b [0034] 槽部：37a [0035] 扣部：3 7 b [0036] 通孔：38 [0037] 絕緣外殼： 4 [0038] 第一絕緣外 殼：41 100111180 表單編號A0101 第9頁/共17頁 1002018700-0 201240221 [0039] 第二絕緣外殼：42 [0040] 前端面：411 [0041] 凹口 ： 412 [0042] 線纜：5 1002018700-0 100111180 表單編號A0101 第10頁/共17頁[0020] Electrical connector: 100 [0021] Insulating body: 1 [0022] Terminal receiving groove: 11 [0023] Conductive terminal: 2 [0024] Metal case: 3 [0025] Covering part: 31 [0026] Plug Portion: 32 [0027] First Housing: 33 [0028] Second Housing: 34 [0029] First Wall: 35a [0030] Second Wall: 35b [0031] Hole Groove: 36 [0032] First Side Wall : 36a [0033] Second side wall: 36b [0034] Slot: 37a [0035] Buckle: 3 7 b [0036] Through hole: 38 [0037] Insulating housing: 4 [0038] First insulating housing: 41 100111180 Form No. A0101 Page 9 of 17 1002018700-0 201240221 [0039] Second Insulation Housing: 42 [0040] Front End Face: 411 [0041] Notch: 412 [0042] Cable: 5 1002018700-0 100111180 Form Number A0101 Page 10 of 17