201135087 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種卡固結構，尤指一種殼體卡固結構。 【先前技術】 隨著科技進步以及使用者的使用習慣，電子產品的體 積正朝著小型化的趨勢發展，然而在許多精密的電子產品 項域，即使目標僅是使產品體積縮小一釐米，對於電路研 f工程師而言都是一項深具挑戰性的課題，因此，若能夠 藉由產品殼體的設計來使内部電路容置空間增加，無疑能 夠使電路設計更具彈性。 4參閱第-圖，第-圖係為習知技術之殼體卡固結構 HI施例。殼體卡固結構1〇0係用以設置於第一殼體 細與第二殼體300之間’並包括上卡㈣、下卡勾12盥 ΐ柱i3 ;上卡勾11係自第一殼體200之第一邊緣21處垂 κ出上彈性部111，並沿平行第—殼體細但垂直第一 緣21之拆卸方向s延伸出上卡合部ip。 袖山下卡勾12係自第二殼體3ίΚ)之第二邊緣31處垂直延 性部121 ’並沿射P方向S之反方向延伸出下卡 _==:=合面1121與上導人面 1222,发 卩 係/、有下卡合面1221與下導入面 平面或倒—t1與下卡合面1221通常設計為 J勾狀，藉以使上卡勾η與下卡勾！2卡合時較為 m 5 201135087 =上入面】】22 T導入面】222則設計為斜面，藉 Λ 1與下卡勾12於卡合的過程較為省力。 出，係自第一殼體200之第一邊緣21處垂直延伸 靠下;勾12"，U與下卡勾12卡合時’頂柱13恰好能夠抵 B，往以避免上卡勾U與下卡勾12的鬆動。 叫參閱第二圖，第二圖係為習知技術之殼體卡 構之第二實施例。殼體卡固 …體卡固結構⑽相仿，同樣具有上卡二= 構Γ卡勾41同樣是由上彈性部411與上卡合部412 ，二卡勾42同樣是由下彈性部421與下卡合部422構 :處在於殼體卡固結構4〇〇不需具備頂柱 使上卡勾41與下卡勾42之長度配合第一殼 殼體之間距’當上卡勾以下卡勾㈣ :、= 勾41恰好抵靠於第—斜麟ω μ & T 工下 一妒辦2〇〇 —"又_且下卡勾42恰好抵靠於第 /V又體200，即此達到穩固的卡合效果。 然而’不管是上述的何種結構 點’首先’由於第-殼體⑽與第二殼體== 勾η與4,卡勾12與42卡合，因此上卡合 及下，合面1221與4221僅能設計為平面或倒勾狀， 但卻因此導致使用者沿拆卸方向S扳動下卡勾121狀42 勾…及下卡勾12與42互相脫離， J谷易以成上卡㈣與41及下卡勾12與42於拆卸 裂。 此外由於上彈性部ln與411及下彈性部⑵與d 201135087 於卡合或拆卸過程中，皆是沿著拆卸方向s及其反方向做 彈性彎折’因此在殼體卡固結構1〇〇與4〇〇在第一殼體2㈧ 與第二殼體300結合時，除了所佔之厚度W1與相當 厚之外，亦必須保留其彈性彎折所需要之空間’，、進而造二 第-殼體2G0與第二殼體間可供電路板與電子元件擺 放的空間變小。 【發明内容】 >本發明所欲解決之技術問題與目的： 緣此，本發明之主要目的係提供一殼體 ^卡固結構之卡勾彈性f折方向係平行於殼體邊緣，^ 斜固結構除了综合了卡合與夾持的方式來作為卡 &，已於翻的前提下，使卡勾不需設計為倒勾形狀。 本發明解決問題之技術手段·· -種殼體卡固結構係用以設置於第 :間’此殼體卡固結構係包含第一卡 ； 向固定勾；第一卡勾係自第一卡勾以及雙 體延伸出第-彈性部，並1又=一邊緣處向第二殼 —方向突伸出第一夹持“向第二卡勾之第 邊緣處向第二殼體延伸出第弟二 卡勾係自苐-殼體之第-向第-卡勾之第二=::第彈性:， 係自第二殼定義出夾持空間；雙向固定勾 體之第—邊緣處向第一殼體延伸出固定部，並 201135087 自固定部沿第二方向延 第一方向延伸出第二干涉部。f涉部，以及自固定部沿 田雙向固定勾受㈣向帛— 第-干涉部與第一失持部：體之第二外力擠歷’使 二央持部產生干涉時，第一 ”並使第二干涉部與第 且第二卡勾係往第—方向；性m二方向彈性彎折， 力拉扯，使第-干涉部向第二殼體之第二外 干涉部與第二失持部產、：產生干涉，並使第二 彈性彎折，且第：卡勾係二二=卡勾係往第二方向 向固定勾脫離失持空間。向弹性彎折，進而使雙 性部較佳實施例[第-夾持部係自第一彈 丨#弟方向漸縮突伸出，曰筮一+& 弹 殼體處具有第一内斜弟夾持部係於鄰近第- 第-内斜面係自第亚於㈣―側具有第—外斜面， 斜面係自第—ί勾第=趙傾斜，第-外 持部係於鄰近第—殼體處具 ==伸7 具有第二外斜面，第二内斜面係 之^相對-側 :體傾斜’第二外㈣自第― 部沿===二ΓΤ第-干涉部係自㈣ 第-方向漸縮地延伸出 第二干涉部係自固定部沿 201135087 於本發明之另一較佳實施例中，201135087 VI. Description of the Invention: [Technical Field] The present invention relates to a fastening structure, and more particularly to a housing fastening structure. [Prior Art] With the advancement of technology and the habits of users, the volume of electronic products is moving toward miniaturization. However, in many sophisticated electronic product fields, even if the target is only to make the product size one centimeter smaller, Circuit engineering is a challenging task for engineers. Therefore, if the design of the product housing can increase the internal circuit housing space, it will undoubtedly make the circuit design more flexible. 4 Referring to the first figure, the first figure is a HI embodiment of a housing fastening structure of the prior art. The housing fastening structure 1 is configured to be disposed between the first housing and the second housing 300 and includes an upper card (four) and a lower hook 12, the mast i3; the upper hook 11 is from the first The first edge 21 of the housing 200 hangs up the upper elastic portion 111 and extends the upper engaging portion ip in a dismounting direction s of the parallel first-shell thin but vertical first edge 21. The sleeve lower hook 12 is perpendicular to the vertical duct portion 121' at the second edge 31 of the second housing 3 and extends in the opposite direction of the P direction S. The lower card _==:= the joint surface 1121 and the upper guide surface 1222, the hairpin system/, the lower engaging surface 1221 and the lower introduction surface plane or the inverted-t1 and the lower engaging surface 1221 are generally designed as a J-hook shape, so that the upper hook η and the lower hook are! 2 When the card is engaged, the m 5 201135087 = the upper surface] the 22 T introduction surface 222 is designed as a slope, and the process of the engagement between the Λ 1 and the lower hook 12 is relatively labor-saving. Exiting from the first edge 21 of the first housing 200 vertically downwards; when the hook 12", U and the lower hook 12 are engaged, the top pillar 13 can just hit B to avoid the upper hook U and The lower hook 12 is loose. Referring to the second drawing, the second drawing is a second embodiment of a housing mechanism of the prior art. The casing is fastened, the body clamping structure (10) is similar, and the upper card has the same structure. The same is the upper elastic portion 411 and the upper engaging portion 412. The second hook 42 is also composed of the lower elastic portion 421 and the lower portion. The engaging portion 422 is disposed in the housing fixing structure 4, and does not need to have a top pillar to match the length of the upper hook 41 and the lower hook 42 with the distance between the first shell and the shell. :, = 勾41 just happens to be in the first - oblique ω ω μ & T work next to 2 〇〇 -" _ and the lower hook 42 just happens to be against the /V and body 200, that is to say A stable snap fit. However, 'regardless of the above-mentioned structural points' firstly because the first-shell (10) and the second casing== hooks η and 4, the hooks 12 and 42 are engaged, so the upper and lower sides, the joint surface 1221 and The 4221 can only be designed as a flat or inverted hook, but it causes the user to pull the lower hook 121-shaped 42 hook in the disassembly direction S... and the lower hooks 12 and 42 are separated from each other, and J Valley is easy to become the upper card (4) and 41 and the lower hooks 12 and 42 are disassembled. In addition, since the upper elastic portions ln and 411 and the lower elastic portions (2) and d 201135087 are engaged or disassembled, they are elastically bent along the disassembly direction s and the reverse direction thereof. When the first casing 2 (8) is combined with the second casing 300, in addition to the thickness W1 and the thickness, the space required for the elastic bending must be retained, and then the second The space between the housing 2G0 and the second housing for the circuit board and the electronic component to be placed becomes smaller. SUMMARY OF THE INVENTION <Technical Problem and Object to be Solved by the Invention: Accordingly, the main object of the present invention is to provide a housing with a locking structure. The hook of the hook is elastic and the direction of the f-fold is parallel to the edge of the housing. In addition to the combination of the clamping and clamping methods, the solid structure has been turned over, so that the hook does not need to be designed as a barb shape. The technical means for solving the problem of the present invention is that the housing fastening structure is configured to be disposed in the first: the housing fastening structure includes the first card; the fixed hook; the first hook is from the first card The hook and the double body extend out of the first elastic portion, and 1 and = an edge protrudes toward the second shell-direction. The first clamping "extends the second housing to the second housing toward the second housing The second card hook is the first-to-the first hook of the shell-=:: the first elasticity: the clamping space is defined by the second shell; the first-edge of the two-way fixed hook is the first The housing extends out of the fixing portion, and the 201135087 extends from the fixing portion in the first direction to extend the second interference portion in the first direction. The portion of the self-fixing portion and the self-fixing portion are fixed in the two directions (four) to the first to the first interference portion. The first missing part: the second external force of the body squeezes the 'first interference when the two central parts interfere, and the second interference part and the second and second hooks are tied to the first direction; Bending, pulling, causing the first interference portion to be produced to the second outer interference portion of the second housing and the second missing portion: causing interference and making the second Bending property, and the first: = hook hooks twenty-two based system to a second direction from the fixing hook out of hold space. Bending to the elastic portion, so that the preferred embodiment of the bisexual portion [the first clamping portion is gradually tapered from the first magazine 弟 弟 曰筮 & & & & & & & & & & & & & & & The younger gripping portion is adjacent to the first-first inner inclined surface from the fourth (four)-side having a first outer inclined surface, the inclined surface is from the first-thick hook = Zhao oblique, and the first-outer holding portion is adjacent to the first-shell The body has a == extension 7 having a second outer bevel, the second inner bevel is ^ opposite-side: the body is inclined 'the second outer (four) from the first - part along the === two-threshold-interference section from (four) - The direction gradually extends out of the second interference portion from the fixed portion along 201135087 in another preferred embodiment of the present invention,
第一卡勾與第二卡勾於彈性彎折空間。 第一殼體係於第—邊 複數個凹槽，藉以增 本發明對照先前技術之功效： ’本發明利用第一卡勾、The first hook and the second hook are hooked on the elastic bending space. The first housing is attached to the first plurality of grooves to enhance the effectiveness of the present invention against the prior art: 'The present invention utilizes the first hook,
相較於習知之殼體卡固結構， 第二卡勾來卡合並夾持雙向固定勾 第二内斜面能夠設言十為斜；而dfc 33 此能夠較容易的拆卸。 另外’由於在拆裝時第—卡勾與第二卡勾之彈性零折 方向係平行於殼體邊緣，相較於習知之殼體卡固結構，能 夠有效的將殼體㈣空間保留給電路板與電子元件使用^ 更進一步，藉由於第一邊緣鄰近第一卡勾與第二卡勾 處開設凹槽’能夠增加第—卡勾與第二卡勾於彈性彎折空 間’且等同於增加第—彈性部與第二彈性部之長度，相^ 於習知之殼體卡固結構，較不易因拆裝而斷裂。 本發明所採用的具體實施例，將藉由以下之實施例及 圖式作進一步之說明。 【實施方式】 本發，係關於-種卡固結構，尤指—種殼體卡固結 構。以下茲列舉一較佳實施例以說明本發明，然熟習此項 技蟄者皆知此僅為一舉例，而並非用以限定發明本身。有 關此較佳實施例之内容詳述如下。 201135087 凊參閱第三圖與第四圖，第三圖係為本發明之殼體卡 構之脫離狀態示意圖，第四圖係為本發明之殼體卡固 構^固狀態示意圖。殼體卡固結構5⑽係用以設置於 第一戒體200與第二殼I# + , ^ 係包含第-卡勾51 殼體卡固結構5〇0 第一卡勾52以及雙向固定勾53 ;第 ::延=自第一殼體之第一邊緣21處向第二殼體 1伸出第-彈性部511，並自第_彈性部 卡勾52亦即平行於第一邊 朝者第一 夾持部512。 邊緣1之第一方向S1突伸出第- 朝著第-卡勾介彈性部521 ’並自第二彈性部切 勹I亦即相反於第一方向Si之第一 大伸出第二夹持部522 方向S2 與第-殼體扇係定義出夹持空L卡勾51、第二卡勾52 第— 殼體3〇0之第二邊緣3!處向 方向S2延伸出第 =° 531 ’並自固定部531沿第二 方向：延伸出第二;=以及自固定部-沿第- W擠愿雙H二^受到朝向第一殼體200之第一外力 並使第二干涉部532與第—隸部512產生干涉， 卡勾51係往第。第—夾持部522產生干涉時，第-—方㈣彈性t 2彈性彎折，且第二卡勾W係往第 間H。 進而使雙向固定自53 S置於夾持空 201135087 當雙向固定勾53受到朝向第二殼體3〇〇之第二外力 F2拉扯，使第一干涉部532與第一夹持部512產生干涉， 並使第二干涉部533與第二夾持部似產生干涉時，第一 卡勾51係往第二方向幻彈性彎折，且第二卡勾w係往第 一方向S1彈性騎，進而使雙向固定勾53脫離夾持空間 _、二口…一…心π双於笞知之殼體卡固結構10〇與Compared with the conventional housing fastening structure, the second hook hooks the card to clamp the two-way fixing hook. The second inner slope can be set to be oblique; and the dfc 33 can be easily disassembled. In addition, since the elastic zero-fold direction of the first hook and the second hook is parallel to the edge of the casing during the disassembly and assembly, the housing (four) space can be effectively reserved to the circuit compared with the conventional housing fastening structure. The board and the electronic component use ^ further, because the first edge is adjacent to the first hook and the second hook to open the groove 'can increase the first hook and the second hook in the elastic bending space' and is equivalent to increase The lengths of the first elastic portion and the second elastic portion are relatively difficult to be broken by disassembly and assembly according to the conventional housing fastening structure. Specific embodiments of the invention will be further illustrated by the following examples and drawings. [Embodiment] The present invention relates to a type of fastening structure, and more particularly to a type of housing fastening structure. The preferred embodiments are described below to illustrate the invention, and it is to be understood by those skilled in the art that this invention is not intended to limit the invention. The contents of this preferred embodiment are detailed below. 201135087 Referring to the third and fourth figures, the third drawing is a schematic view of the disengaged state of the housing card of the present invention, and the fourth drawing is a schematic view of the fixing state of the housing card of the present invention. The housing fastening structure 5 (10) is configured to be disposed on the first body 200 and the second body I# + , ^ includes a first - hook 51 housing fastening structure 5 〇 0 first hook 52 and two-way fixed hook 53 The first: the elastic portion 511 is extended from the first edge 21 of the first housing to the second housing 1 and is parallel to the first side from the first elastic portion hook 52. A clamping portion 512. The first direction S1 of the edge 1 protrudes from the first-to-the first hook-and-loop elastic portion 521' and is cut from the second elastic portion, that is, the first large protruding second-grip opposite to the first direction Si The portion 522 direction S2 and the first-shell fan system define a clamping empty L-hook 51, and the second hook 52-the second edge 3! of the housing 3〇0 extends in the direction S2 by the =° 531 ' And extending from the fixing portion 531 in the second direction: the second; = and the self-fixing portion - the first external force toward the first housing 200 and the second interference portion 532 are The first-part 512 generates interference, and the hook 51 is connected to the first. When the first clamping portion 522 is interfered, the first-fourth (fourth) elastic t 2 is elastically bent, and the second hook W is elasticized toward the first portion H. Further, the bidirectional fixing from the 53 S is placed in the clamping space 201135087. When the bidirectional fixing hook 53 is pulled by the second external force F2 toward the second housing 3, the first interference portion 532 interferes with the first clamping portion 512. When the second interference portion 533 is caused to interfere with the second clamping portion, the first hook 51 is elastically bent in the second direction, and the second hook w is elastically rided in the first direction S1, thereby The two-way fixing hook 53 is separated from the clamping space _, two mouths... one... heart π double in the shell structure of the 笞 之 〇
㈣卡固結構由於在拆料第一卡勾 51與弟二卡勾52之彈性蠻;^古& & 第-相u 向解行於第—邊緣21與 僅為第L士〗此威體卡固結構5GG所佔用之内部空間僅 产W3:/ 5卜第二卡勾52或者是雙向固定勾53的厚 ;，固二2彎折亦不會與殼體内部容置空間有所衝 夠有效的將殼體内部空間保留給電路板與電子元 昧此之外，為了能夠具 於本實施例中之較佳者，第有想的麵作性與耐用度， -朝第-方向=4:=:自第-彈性部 近第-殼體處具有第—内出斜面且 有第一外斜面5U2 亚於相對一側具 末端朝第二殼體傾斜1_面221係自第一卡勾51之 5!之末端朝第一殼體2〇〇傾斜;同理面5二2係自第-卡勾 土自第二彈性部52】朝第二方向S2漸縮:夾持^ 522係 部切係於鄰近第一殼體 目、、、大出’且第一夾持 於相對-側具有第二外斜面5^、，有第二内斜面則’並 1 第一内斜面5221係自 m Π 201135087 第二卡勾52之末端朝第二殼體300傾斜，第二外斜面5222 係自第二卡勾52之末端朝第一殼體200傾斜。 更進—步，第一干涉部532係自固定部531沿第二方 向S2漸縮地延伸出，而第二干涉部533係自固定部531沿 第一方向S1漸縮地延伸出，且第一干涉部532與第二干涉 部533朝向第一殼體200之一側可以具有與第一外斜面 5122及第二外斜面5222之斜度相對應之插入面5321與 鲁5331 ’用以於雙向固定勾53插入夾持空間Η的過程中， 抵罪第—外斜面5122與第二外斜面5222，並提供將雙向 固定勾53導入夾持空間Η的效果；同理地，第一干涉部 532與第二干涉部533朝向第二殼體300之一側可以具有 與第一内斜面5121及第二内斜面5221之斜度相對應之拔 出面5322與5332，用以於雙向固定勾53拔出夾持空間η =過程中’抵靠第一内斜面5121與第二内斜面5221，並 提2將雙向固定勾53導出夾持空間Η的效果；由於雙向 φ 固疋勾53於卡固狀態時係被第一卡勾51與第二卡勾52卡 口並夹持著’因此能夠在保有穩固卡合的前提下，供使用 者更容易的插入與拔取。 然而’要強調的是，上述的結構是一個較為理想的殼 ^卡固結構500’實際上，第一炎持部512、第二爽持部 522、第一干涉部532與第二干涉部533並不一定要同時具 備有第Θ斜面5121、第二内斜面5221、第-外斜面 5122、第一外斜面5222、插入面5321與5331以及拔出面 5322與5332 ’對於插入過程而言’僅需要具有第一外斜面 12 201135087 5122與第二外斜面5222，或者是插入面5321與5331，即 可供使用者更容易的插入；同理，對於拔出過程而言，也 僅需要具有第一内斜面5121與第二内斜面5221，或者是 拔出面5322與5332，即可供使用者更容易的拔出。 最後，於本發明之較佳實施例中，第一殼體200更可 以於第一邊緣21鄰近第一卡勾51與第二卡勾52處開設有 複數個凹槽H2、H3與H4，如此一來，除了能夠使第一彈 性部511與第二彈性部521的長度更長，亦可增加第一卡 勾51與第二卡勾52的彈性彎折空間，並因此使第一卡勾 51與第二卡勾52較不易因拆裝而斷裂，大幅增加本發明 殼體卡固結構500的耐用度。 藉由以上較佳具體實施例之詳述，係希望能更加清楚 描述本發明之特徵與精神，而並非以上述所揭露的較佳具 體實施例來對本發明之範疇加以限制。相反地，其目的是 希望能涵蓋各種改變及具相等性的安排於本發明所欲申請 之專利範圍的範疇内。 【圖式簡單說明】 第一圖係為習知技術之殼體卡固結構之第一實施例； 第二圖係為習知技術之殼體卡固結構之第二實施例； 第三圖係為本發明之殼體卡固結構之脫離狀態示意圖； 以及 第四圖係為本發明之殼體卡固結構之卡固狀態示意圖。 13 201135087 【主要元件符號說明】 殼體卡固結構100 上卡勾11 上彈性部111 上卡合面1121 上導入面1122 上卡合部112 下卡勾12 下彈性部121 下卡合部122 下卡合面1221 下導入面1222 頂柱13 拆卸方向S 厚度W1 第一殼體200 第一邊緣21 第二殼體300 第二邊緣31 殼體卡固結構400 上卡勾41 上彈性部411 上卡合部412 上卡合面4121 201135087 下卡勾42 下彈性部421 下卡合部422 下卡合面4221 厚度W2 殼體卡固結構500 第一卡勾51 第一彈性部511 第一夾持部512 第一内斜面5121 第一外斜面5122 第二卡勾52 第二彈性部521 第二夾持部522 第二内斜面5221 第二外斜面5222 雙向固定勾53 固定部531 第一干涉部532 插入面5321 拔出面5322 第二干涉部533 插入面5331 拔出面5332 201135087 第一方向si 第二方向S2 夾持空間Η 凹槽 Η2、Η3、Η4 厚度W3 第一外力F1 第二外力F2(4) The structure of the card is due to the elasticity of the first card hook 51 and the second card hook 52 in the material removal; ^古 &&&&&&&&&&&&&&&&&&&&&&&& The internal space occupied by the body clamping structure 5GG only produces W3: / 5 b the second hook 52 or the thickness of the bidirectional fixing hook 53; the solid 2 2 bending does not rush with the internal housing space In order to be able to effectively retain the internal space of the casing to the circuit board and the electronic unit, in order to be able to be better in the embodiment, the first desired surface and durability, - toward the first direction = 4:=: from the first-elastic portion near the first-shell has a first-in-out slope and has a first outer slope 5U2, the opposite side has an end inclined toward the second housing 1_face 221 from the first card The end of the hook 5 of the hook 51 is inclined toward the first housing 2〇〇; the same plane 5 2 2 is gradually tapered from the second elastic portion 52 to the second direction S2: clamping ^ 522 The portion is cut adjacent to the first housing, and is enlarged and the first clamping member has a second outer inclined surface 5^ on the opposite side, and the second inner inclined surface is the first inner inclined surface 5221. m Π 201135087 Second hook 52 Inclined toward the second end of the housing 300, the outer inclined surface 5222 of the second line from the second end 52 of the hook 200 is inclined toward the first housing. Further, the first interference portion 532 is gradually extended from the fixing portion 531 in the second direction S2, and the second interference portion 533 is gradually extended from the fixing portion 531 in the first direction S1, and The one of the interference portion 532 and the second interference portion 533 facing the first housing 200 may have an insertion surface 5321 corresponding to the inclination of the first outer slope 5122 and the second outer slope 5222 and the Lu 5331 'for bidirectional During the insertion of the fixing hook 53 into the clamping space ,, the first outer inclined surface 5122 and the second outer inclined surface 5222 are matched, and the effect of introducing the two-way fixing hook 53 into the clamping space ; is provided; likewise, the first interference portion 532 is The second interference portion 533 may have an extraction surface 5322 and 5332 corresponding to the inclination of the first inner inclined surface 5121 and the second inner inclined surface 5221 toward the side of the second housing 300 for pulling out the bidirectional fixing hook 53 The clamping space η = in the process of 'abutting the first inner inclined surface 5121 and the second inner inclined surface 5221, and 2 is the effect of guiding the two-way fixed hook 53 to the clamping space ;; since the two-way φ solid hook 53 is in the stuck state Being latched by the first hook 51 and the second hook 52 and thus being held Under the premise of stable clamping, it is easier for the user to insert and extract. However, it is to be emphasized that the above structure is a preferred housing ^clamping structure 500'. In fact, the first inflaming portion 512, the second holding portion 522, the first interference portion 532 and the second interference portion 533 It is not necessary to have both the first inclined surface 5121, the second inner inclined surface 5221, the first outer inclined surface 5122, the first outer inclined surface 5222, the insertion surfaces 5321 and 5331, and the extracted surfaces 5322 and 5332 'for the insertion process only It is required to have a first outer bevel 12 201135087 5122 and a second outer bevel 5222, or an insertion surface 5321 and 5331, which can be inserted more easily by the user; similarly, for the extraction process, only need to have the first The inner inclined surface 5121 and the second inner inclined surface 5221, or the extracted surfaces 5322 and 5332, are more easily pulled out by the user. Finally, in the preferred embodiment of the present invention, the first housing 200 is further provided with a plurality of grooves H2, H3 and H4 adjacent to the first hook 51 and the second hook 52 at the first edge 21, In addition, in addition to being able to lengthen the first elastic portion 511 and the second elastic portion 521, the elastic bending space of the first hook 51 and the second hook 52 can be increased, and thus the first hook 51 can be made. The second hook 52 is less likely to be broken by disassembly and assembly, and the durability of the housing fastening structure 500 of the present invention is greatly increased. The features and spirit of the present invention are intended to be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a first embodiment of a housing-clamping structure of the prior art; the second figure is a second embodiment of a conventional housing-clamping structure; The schematic diagram of the disengaged state of the casing fastening structure of the present invention; and the fourth figure is a schematic diagram of the fastening state of the casing fastening structure of the present invention. 13 201135087 [Description of main component symbols] Housing fastening structure 100 Upper hook 11 Upper elastic part 111 Upper engagement surface 1121 Upper introduction surface 1122 Upper engagement part 112 Lower hook 12 Lower elastic part 121 Lower engagement part 122 Lower Engagement surface 1221 Lower introduction surface 1222 Top pillar 13 Removal direction S Thickness W1 First housing 200 First edge 21 Second housing 300 Second edge 31 Housing fastening structure 400 Upper hook 41 Upper elastic portion 411 Upper card Engagement portion 412 Upper engagement surface 4121 201135087 Lower hook 42 Lower elastic portion 421 Lower engagement portion 422 Lower engagement surface 4221 Thickness W2 Housing fastening structure 500 First hook 51 First elastic portion 511 First clamping portion 512 first inner bevel 5121 first outer bevel 5122 second hook 52 second elastic portion 521 second clamping portion 522 second inner bevel 5221 second outer bevel 5222 bidirectional fixing hook 53 fixing portion 531 first interference portion 532 insertion Surface 5321 Extraction surface 5322 Second interference portion 533 Insertion surface 5331 Extraction surface 5332 201135087 First direction si Second direction S2 Holding space Η Groove Η2, Η3, Η4 Thickness W3 First external force F1 Second external force F2