TWI748862B - 胎壓偵測器封裝方法 - Google Patents
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2241—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in or for vehicle tyres
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- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
一種胎壓偵測器封裝方法,包括有置入步驟、灌注步驟以及硬化步驟,將感測模組置入於模具內定位後,注入混合膠料於模具內並包覆感測模組待其硬化形成外殼部分,而得以從外型模具取出由外殼部分包覆感測模組的胎壓偵測器,如此能簡化以往組裝方式達到提升生產效率之目的與功效。
Description
本發明係關於一種封裝方法,特別是指應用於胎壓偵測器的封裝方法。
車輛需要輪胎承載車體重量與地面接觸,行駛過程中輪胎相對地面摩擦接觸提供車輛行進、轉彎、煞車減速、吸收路面衝擊等作用,前述作用需要良好狀態的輪胎才能充分發揮其效用。輪胎的形狀與剛性是開發時由廠商業者所設計決定,然而正確輪胎壓力是車輛行駛過程中維持輪胎形狀的重要因素之一。然而隨著時間的流逝,輪胎內的空氣會由微小縫隙或氣嘴的部位微量洩漏而逐漸減少,或是輪胎遭受異物穿刺產生破洞發生輪胎漏氣,因此車輛行駛前需要檢查輪胎壓力,若有不足車輛規範輪胎壓力值時則是需要對輪胎補充損失的部分,達到合乎規範的輪胎壓力。
為了可以判斷以及隨時監控輪胎胎壓已有開發出相當多胎壓偵測輔助系統(TPMS),可以量測輪胎內的氣壓、溫度,隨時可供駕駛獲得輪胎壓力與溫度。目前常見有安裝在輪胎內部的胎內式以及安裝於氣嘴的胎外式。傳統胎內式胎壓感測器是藉由外殼將感測傳輸模組包覆保護。
然而,前述製作胎壓感測器需要透過製作外殼的模具,透過射出成型技術先製作出外殼後,再將前述感測傳輸模組透過螺絲、鉚接、卡扣等技
術安裝於外殼內,且需要氣密墊圈位於感測傳輸模組與外殼之間,防止水氣進入感測傳輸模組的感測壓力的電路。此外,前述的外殼通常是採用兩個殼體對接密封前述感測傳輸模組,或是一個底殼配合一個封蓋對接密封前述感測傳輸模組。可知前述胎內式胎壓感測器在組裝方式相當繁瑣,需要多項組裝工藝與步驟,導致生產效率有限。
本發明提供一種胎壓偵測器封裝方法,將感測模組置入於模具內定位後,模具內注入混合膠料且包覆感測模組待硬化形成外殼部分,而得以從外型模具取出由外殼部分包覆感測模組的胎壓偵測器,如此能簡化以往組裝方式達到提升生產效率之目的與功效。
為了達成前述目的與功效,本發明胎壓偵測器封裝方法包括有下列步驟;置入步驟,將一感測模組放入一外型模具的一模穴內,並由模穴內一定位部分限制定位該感測模組而無法於該模穴的橫向以及該模穴的底部方向位移;灌注步驟,將一混合膠料注入於前述模穴內,前述混合膠料包覆該感測模組的表面並充填於前述模穴,藉以構成包覆於該感測模組表面外的一外殼部分;以及硬化步驟,待前述外殼部分硬化後其與該感測模組構成一體連接之一胎壓偵測器,最後得以從模穴取出。
本發明另一種胎壓偵測器封裝方法,包括下列步驟;預組步驟,將一感測模組與一框架組合構成一內置部分,且前述內置部分具有複數流道;置入步驟,前述內置部分放入一外型模具的一模穴內,並由模穴內一定位部分限制定位該內置部分而無法於該模穴的橫向以及該模穴的底部方向位移;灌注
步驟,將一混合膠料注入於前述模穴內,前述混合膠料部分經由該複數流道朝向該模穴的底部方向流動,又前述混合膠料部分包覆於該內置部分的表面並充填於前述模穴,藉以構成包覆於該內置部分表面的一外殼部分;以及硬化步驟,待前述外殼部分硬化後其與該內置部分構成一體連接之一胎壓偵測器,最後得以從模穴取出。
100:內置部分
110:感測模組
111:電路板
112:無線天線
113:電池單元
114:氣壓感測單元
115:控制單元
116:氣壓孔
117:叉部
118:閃避口
120:框架
121:外環部
122:氣嘴部
123:倒扣齒
124:內凹口
125:氣嘴孔
126:內環表面
130:流道
141:第一側
142:第二側
200:外型模具
210:模穴
220:氣壓塞柱
230:氣嘴塞柱
300:混合膠料
400:外殼部分
401:延伸孔
500:胎壓偵測器
501:螺絲
502:氣嘴
第一圖 係本發明胎壓偵測器封裝方法之步驟流程圖。
第二圖 係置入步驟至硬化步驟示意圖。
第三圖 係本發明第二實施之步驟流程圖。
第四圖 係本發明第二實施之預組步驟之立體示意圖。
第五圖 係本發明第二實施之置入步驟至硬化步驟示意圖。
第六圖 係本發明第二實施之胎壓偵測器立體示意圖。
第七圖 係第六圖Ⅶ-Ⅶ線段剖面示意圖。
第八圖 係本發明第二實施之胎壓偵測器組設氣嘴立體示意圖。
請參閱第一圖所示,本發明胎壓偵測器封裝方法包括有置入步驟、灌注步驟以及硬化步驟等。以下則說明各步驟技術特徵,並請配合參閱第二圖所示。
置入步驟,將一感測模組110放入一外型模具200的一模穴210內,並由模穴210內一定位部分限制定位該感測模組110而無法於該模穴210的橫向以
及該模穴210的底部方向位移;灌注步驟,將一混合膠料300注入於前述模穴210內,前述混合膠料300包覆該感測模組110的表面並充填於前述模穴210,藉以構成包覆於該感測模組110表面外的一外殼部分400;以及硬化步驟,待前述外殼部分400硬化後其與該感測模組110構成一體連接之一胎壓偵測器500,最後得以從模穴210取出。
上述實施例係以透過黏貼方式結合於輪胎內壁的胎壓偵測器500。
本發明藉由置入步驟、灌注步驟以及硬化步驟下,得以先將感測模組110放置於外型模具200的模穴210內,並由定位部分限制感測模組110於外型模具200的模穴210內,進一步於外型模具200合模後於模穴210內注入混合膠料300,混合膠料300包覆感測模組110的外表面(在此係指感測模組110的各元件外表面)並充填於模穴210內,待混合膠料300硬化後構成包覆於感測模組110外表面的外殼部分400,即可從外型模具200取出外殼部分400包覆感測模組110的胎壓偵測器500,因此相較於習知技術如此能簡化以往組裝方式達到提升生產效率。
以下進一步說明本發明各步驟以及組成構件的細部特徵。其中該感測模組110進一步包括一電路板111、一無線天線112、一電池單元113、一氣壓感測單元114及一控制單元115,且該無線天線112、該電池單元113、該氣壓感測單元114與該控制單元115以及該電路板111電性連接;該氣壓感測單元114包括有一氣壓孔116;該定位部分包括有一氣壓塞柱220;於前述置入步驟時該氣壓塞柱220部分穿設於該氣壓孔116,而該氣壓塞柱220部分位於模穴210內,以致前述感測模組110與模穴210底部保有一空隙;前述灌注步驟時該混合膠料300受到該氣壓塞柱220阻礙而不會流向該氣壓孔116,使得該混合膠料300環繞於模穴210內的該氣壓塞柱220部分,並構成該外殼部分400之一延伸孔401,而前述混合膠料300
充填於該空隙;前述硬化步驟時從該模穴210取出該胎壓偵測器500後,該延伸孔401連通該氣壓孔116。藉由外型模具200的氣壓塞柱220塞入氣壓孔,得以避免在灌注時混合膠料300填入氣壓孔116,而延伸孔401與氣壓孔116相互連通提供氣壓感測單元114感測輪胎內部的氣體壓力。
前述混合膠料300包括有基礎樹脂、填料、固化劑、交聯劑以及其他助劑。前述置入步驟將感測模組110放入外型模具200的模穴210前,進行脫模劑塗佈於模穴210表面。
請參閱第三至六圖所示,本發明第二實施例之胎壓偵測器封裝方法,包括下列步驟;預組步驟,將一感測模組110與一框架120組合構成一內置部分100,且前述內置部分100具有複數流道130;置入步驟,前述內置部分100放入一外型模具200的一模穴210內,並由模穴210內一定位部分限制定位該內置部分100而無法於該模穴210的橫向以及該模穴的底部方向位移;灌注步驟,將一混合膠料300注入於前述模穴210內,前述混合膠料300部分經由該複數流道130朝向該模穴210的底部方向流動,又前述混合膠料300部分包覆於該內置部分100的表面並充填於前述模穴210,藉以構成包覆於該內置部分100表面的一外殼部分400;以及硬化步驟,待前述外殼部分400硬化後其與該內置部分100構成一體連接之一胎壓偵測器500,最後得以從模穴210取出。
該框架120包括有一外環部121以及一體相連於該外環部121之一氣嘴部122;而該感測模組110包括有一電路板111、一無線天線112、一電池單元113、一氣壓感測單元114及一控制單元115,且該無線天線112、該電池單元113、該氣壓感測單元114與該控制單元115以及該電路板111電性連接;前述電路板111跨置於該外環部121表面,並由該外環部121的複數倒扣齒123扣抵定位該電路板111表面。藉由倒扣齒123以及外環部121提供電路板111與框架120的預先組合,
得以提供框架120穩固定位電路板111,以免後續灌注步驟受到混合膠料300的注入作用而受力位移。
前述電路板111具有相反方向的一第一側141與一第二側142,且該無線天線112、該氣壓感測單元114與該控制單元115位於該第一側141方向,而該第二側142抵於該框架120的外環部121,該電池單元113位於第二側142方向。藉由該無線天線112、該氣壓感測單元114與該控制單元115位於該第一側141方向,而該電池單元113位於第二側142方向,得以有效控制重量並以較平均方式分佈於第一側141與第二側142方向。
該氣嘴部122相連於該外環部121之間的兩側位置各設有一內凹口124,而該電路板111設有間隔排列之二叉部117,且該二叉部117之間形成一閃避口118,以致該二叉部117分別定位於各該內凹口124,而該閃避口118供該氣嘴部122部分容置;該複數流道130部分設置於該閃避口118與該氣嘴部122之間的空隙,又該複數流道130部分間隔設置於該外環部121的一內環表面126且各別連相於該複數倒扣齒123。藉由前述流道130提供混合膠料300於灌注步驟中提供連通作用,待混合膠料300於流道130位置硬化後成為外殼部分400一體連結於內置部分100的組合結構,得以提升外殼部分400與內置部分100兩者的結合結構強度。
該氣嘴部122貫穿設置有一氣嘴孔125;該氣壓感測單元114包括有一氣壓孔116;該定位部分包括有一氣壓塞柱220以及一氣嘴塞柱230;於前述置入步驟時,該氣壓塞柱220部分穿設於該氣壓孔116,該氣嘴塞柱230部分穿設該氣嘴孔125,而該氣壓塞柱220部分位於模穴210內;以致該內置部分100與該模穴210底部保有一空隙;前述灌注步驟時該混合膠料300受到該氣壓塞柱220與該氣嘴塞柱230阻礙而不會分別流向該氣壓孔116、該氣嘴孔125,使得該混合膠料300環繞於模穴210內的該氣壓塞柱220部分並構成該外殼部分400之一延伸孔401,且前述混合膠料300充填於該空隙;前述硬化步驟時從該模穴210取出該胎壓偵測器
500後,該延伸孔401連通該氣壓孔116。藉由氣嘴塞柱230與氣壓塞柱220分別塞入氣嘴孔125與氣壓孔116,得以提供內置部分100穩固定位於外型模具200的模穴210內。
前述定位部分之氣壓塞柱220、氣嘴塞柱230係可一體成形於外型模具200的模穴210內或是獨立構件安裝於模穴210內。此外,前述外型模具200係採用數個模塊可以組合以及組合後可分離的自動化模具型態。
請參閱第六至八圖所示,本發明第二實施例胎壓偵測器500是透過螺絲501穿設氣嘴孔125組合氣嘴502。此型態胎壓偵測器500是透過氣嘴502安裝於輪框。
Claims (4)
- 一種胎壓偵測器封裝方法,其包括:預組步驟,將一感測模組與一框架組合構成一內置部分,且前述內置部分具有複數流道;該框架包括有一外環部以及一體相連於該外環部之一氣嘴部;而該感測模組包括有一電路板、一無線天線、一電池單元、一氣壓感測單元及一控制單元,且該無線天線、該電池單元、該氣壓感測單元與該控制單元以及該電路板電性連接;前述電路板跨置於該外環部表面,並由該外環部的複數倒扣齒扣抵定位該電路板表面;置入步驟,前述內置部分放入一外型模具的一模穴內,並由模穴內一定位部分限制定位該內置部分而無法於該模穴的橫向以及該模穴的底部方向位移;灌注步驟,將一混合膠料注入於前述模穴內,前述混合膠料部分經由該複數流道朝向該模穴的底部方向流動,又前述混合膠料部分包覆於該內置部分的表面並充填於前述模穴,藉以構成包覆於該內置部分表面的一外殼部分;以及硬化步驟,待前述外殼部分硬化後其與該內置部分構成一體連接之一胎壓偵測器,最後得以從模穴取出。
- 如請求項1所述之胎壓偵測器封裝方法,其中該氣嘴部相連於該外環部之間的兩側位置各設有一內凹口,而該電路板設有間隔排列之二叉部,且該二叉部之間形成一閃避口,以致該二叉部分別定位於各該內凹口,而該閃避口供該氣嘴部部分容置;該複數流道部分設置於該閃避口與該氣嘴部之間的空隙,又該複數流道部分間隔設置於該外環部的一內環表面且各別連相於該複數倒扣齒。
- 如請求項1所述之胎壓偵測器封裝方法,其中該氣嘴部貫穿設置有一氣嘴孔;該氣壓感測單元包括有一氣壓孔;該定位部分包括有一氣壓塞柱以及一氣嘴塞柱;於前述置入步驟時,該氣壓塞柱部分穿設於該氣壓孔,該氣嘴塞柱部分穿設該氣嘴孔,而該氣壓塞柱部分位於模穴內;該氣嘴塞柱部分穿設於該氣嘴孔,而該氣嘴塞柱部分位於該模穴內;以致該內置部分與該模穴底部保有一空隙;前述灌注步驟時該混合膠料受到該氣壓塞柱與該氣嘴塞柱阻礙而不會分別流向該氣壓孔、該氣嘴孔,使得該混合膠料環繞於模穴內的該氣壓塞柱部分並構成該外殼部分之一延伸孔,且前述混合膠料充填於該空隙;前述硬化步驟時從該模穴取出該胎壓偵測器後,該延伸孔連通該氣壓孔。
- 如請求項1所述之胎壓偵測器封裝方法,其中該電路板具有相反方向的一第一側與一第二側,且該無線天線、該氣壓感測單元與該控制單元位於該第一側方向,而該第二側抵於該框架的外環部,該電池單元位於第二側方向。
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