1331652 九、發明說明： 【發明所屬之技術領域】 本發明係有關於-種小躲，尤其是驗血壓料，採用隔 膜之小型泵’是噪音很低的小型泵。 【先前技術】 習知之此種小型泵，其構成為：具有以隔膜構成之空氣室、 及使該隔膜動作之馬達，該隔膜具有磁吸於其一端永久磁石所構 成之可動磁石，同時，該馬達為由複數個磁吸於該馬達輸出軸的 永久磁石所構成之旋轉磁石體所構成，藉由該馬達之驅動，該旋 轉磁石體會旋轉’且吸引於該旋轉磁石體與前述可動磁石之間， 產生反發力，藉由前述隔膜之膨脹、收縮，使前述空氣室進行加 壓、減壓之泵作用（參照專利文獻丨）。 該小型泵，藉由安裝於吸氣閥與排氣闊的覆蓋，前述隔膜會 形成密封的空氣室，該空氣的吸氣閥鄰接於該空氣室，並會透過 所形成的空氣漥連通外氣，而前述排氣闊則透過排氣筒及管筒 (tube)與袖邊（cuff)帶連通。 此外’本專利申請人也已經申請此種小槊果。茲依照圖5來說 明該專利申請。 1331652 形的盒體2内具1331652 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a small type of pump, which is a small-sized pump that uses a membrane, and is a small pump with low noise. [Prior Art] A small-sized pump of the prior art is configured to include an air chamber formed of a diaphragm and a motor for operating the diaphragm, the diaphragm having a movable magnet formed by magnetizing a permanent magnet at one end thereof, and The motor is composed of a plurality of rotating magnets magnetized by a permanent magnet that is magnetically attracted to the output shaft of the motor. The rotating magnet body is rotated by the motor and is attracted between the rotating magnet body and the movable magnet. The counter-initiating force is generated, and the air chamber is pressurized and decompressed by the expansion and contraction of the diaphragm (see Patent Document). The small pump is covered by an inhalation valve and a wide exhaust, and the diaphragm forms a sealed air chamber, and the air suction valve is adjacent to the air chamber and communicates with the outside air through the formed air. The exhaust gas is connected to the cuff band through the exhaust pipe and the tube. In addition, the applicant of this patent has also applied for such a small capsule. This patent application is described in accordance with Figure 5. 1331652 shaped box 2 with
圖中，1為小型泵，在該小型泵丨於平面視長方 有形成栗室3、3的2個隔膜4、4之下部中心部，下2 安裝體5、5 ’在該隔膜4、4之下方，配設古肱姑Ks 4a…就被夾接於4述上盒體2a及前述中盒體2b之間，並保持於前 述盒體2上。 再則，該搖動體6之周邊部旁邊，且位於前述隔膜4、4之各中In the figure, reference numeral 1 denotes a small pump in which the center portion of the lower portions of the two diaphragms 4, 4 forming the chest chambers 3, 3, and the lower 2 mounting bodies 5, 5' are located in the diaphragm 4, Below the 4th, the ancient scorpion Ks 4a is placed between the upper case 2a and the middle case 2b, and held on the case 2. Further, adjacent to the peripheral portion of the rocking body 6, and located in each of the foregoing diaphragms 4, 4
該轴體7、7之外側面，密㈣設於前述隔膜4、4之前述中空狀安 裝體5、5之内側面，前述隔膜4、4安裝於前述搖動體6上。 再則，前述各隔膜4、4之底部中心部有一部份切開，形成有 吸氣閥體8、8，同時’藉由該切開處，設有貫通孔9、9，並可藉 由遠吸氣閥體8、8 ’來閉塞或開放該貫通孔9、9，構成吸氣闕部 再則，在前述搖動體6之中心部上，貫通固定有藉由將該搖動 體6偏心旋轉而搖動之偏心旋轉軸1〇。在該搖動體6之上方，設有 攸觔迷中盒體2b延设而來之延設部η，同時，在該延設部I〗之下 部，下方形成有開口之凹部12，另一方，在配置於前述下盒體把 7 1331652 下部側之後述馬達13的旋轉驅動軸14上端，固裝有旋轉體i5，從 該旋轉體15上部之中心位置離間之位置，形成有凹部16，前述偏 心旋轉軸10之上端’即遊崁於前述凹部12上’下端則遊炭於該凹 部16上。 此外，在前述上盒體2a之中央部，開穿有排氣孔17，且，在 該上盒體2a之下面部的該排氣孔17外周上，於與該排氣孔I?連通 之2個下方，設有開口的環狀凹溝18、丨8，將從前述隔膜4、4之上 端部構成之排氣閥體19、19，壓接在形成該環狀凹溝18、18之内 壁面18a、18a上，構成排氣閥部v2、V2。 此外，在如述下盒體2c上，固裝有收納連接前述旋轉驅動軸 14之馬達13的馬達盒體20，在該下盒體2c與該馬達盒體2〇上，設 有連通5亥下盒體2c與該馬達盒體20之直線狀的延長連通孔2丨，同 時，在該馬達盒體2〇的下部，形成有將外氣導入該馬達盒體加内 之至少1個以上的吸氣孔22、22。 驅動前述馬達13，藉由前述旋轉驅動軸14，前述旋轉體15會 旋轉，使别述偏心旋轉軸1〇呈偏心旋轉，藉此，前述搖動體6會搖 動，使前述隔膜4、4之下端部上下移動。而在一方之隔膜4之下端 部向下移動時，該隔膜4内會呈負壓，前述排氣閥體19會密閉於前 述環狀凹溝18之前述内壁面18a上，亦即，前述排氣閥部％為關閉， 1331652 且河述吸氣&德會將前述貫通孔9自聽之狀態呈賴放，亦 即，前述吸氣閥抓為開啟狀態，如箭頭〇所示一般，從前述空氣 導入孔7a吸氣進入前述隔膜4内。 其次’别述隔膜4之下端部向上移動時，前述隔膜4内會呈高 壓’前述吸氣閥體8會密閉前述貫通孔9，將前述吸氣閥部％呈關閉 雜’同時’前述排氣閥體19，會從前述内壁面收擴張直徑，如 刖頭0所不般’攸刖述排氣閥部％排氣。從該排氣闊體19排出之 玉氣a通過月丨】述％狀凹溝18 ,從前述排氣孔冊出於前述盒體2 之外。 此外，隨著前述隔膜4之向上移動，前述下盒體此内會呈負 [’透過剛述連通孔2卜如箭頭£所示—般，空氣會流入前述馬達 盒體20内’觀’該馬達盒_时呈貞壓，親前述吸氣孔&， 如箭頭F所示一般，吸入外氣。 [專利文獻1 ] 特開平11-324927號公報（第卜1〇圖） [專利文獻2] 特開2002-106471號公報（第丨圖） b52 【發明内容】 《所欲解決之技術問題》 上述習知例之專利文獻丨所記载的小魏，藉由安料氣_ “閥的餘，密封隔膜，形处氣室，該吸氣閥透過與該空^ 室鄰接形成的空氣漥連通外氣。 x二氣 丨題 然而，該吸_是透過空氣湩直接連通外氣的，因此 吸氣閥及減_造成㈣錢乎沒有降低·餅部之問5亥 另-方面’上述專利文獻2所記載的小型果之構造，吸 與排氣閥體乃形成於_上，且贿氣_會透·成於搖動體 之空氣導人孔、泵錢之下盒體、連通孔、馬達盒體、及形成於 柄達盒紅賴孔，斜部連通，尤其，藉由透·達盒體連 通’來降低前述吸氣_及排氣閥體的噪音。 灰壓轉所_之小錄，可魏將噪音減至最低， 即使是前述專散獻2所記載的小躲，必須進—步降低噪音。 在此本發明之目的乃在於提供-種使用隔膜之小型泵，可 以解決大巾碑低因_之動作喊㈣音之賴課題。 《解決問題之技術手段》 1331652 為達上述之目的，本發明之提案在於提供—種小型泵，其構 以為喊杨献室之祕（diaphragm)縣倾，與内裝有 爲·的$達现⑯連結’且該泵盒體與馬達盒體是透過連通孔連結 的，猎由該馬達的驅動，使前述隔膜動作，吸人的空氣，會從前 述馬達盒體透過前述連通孔供給__，前麟通孔並設有減 音裝置；及 上述減音裝置，乃形成於上述連通孔的迂迴通路之小型泵；及 上述減日裝置’其上述連通制至少—部份之剖面積所形成之形 狀’要比上述泵盒體開口之排氣σφ積及上述馬達盒體開口之吸 氣口面積大之小型泵；及 上述減音裴置，其上述連通孔之空氣流路所形成之形狀為彎曲流 路之小型泵；及 上述減音裝置，因為其上述連通孔内形成有上述彎曲流路，所以， 至少有1個以上之肋條（rib)突設於該連通孔内之小型泵；及 上述減音裝置，因為其上述連通孔内形成有上述彎曲流路，所以， 至少有1個以上之壁突設於該連通孔内，且於所定部位形成有細縫 (slit)及/或間隙之小型泵；及 上述減音裝置，為於上述連通孔内、形成貯留空氣用的空氣漥之 小型泵；及 上述減音裝置，在確保所定空氣流量之範圍内’吸入口與排出口 之剖面積為細小形成之複數個連通孔之小型泵；及 上述連通孔至少一部份， 之小型泵。 為由形成於上縣倾之連通溝所構成 【實施方式】 乂下就…圖1至圖4來詳細說明本發明之一實施型態。此 ^在·上’㈣知例相同之構成部分會附上同—符號並省略 "兒月圖1中’ 23為小型泵，該小型泵設有形成迁迴通路施之連 通孔24作為減音裝置，取代習知例之小型泵（圖5中的丨）之連通 孔（圖5中的21)。 亦即，該連通孔24 ’其吸氣口2处開口於馬達盒體2〇内，在從 該吸氣口2侧斜下方位置，其職口扯開口於下盒歡，在該 吸氣口24b與該排氣口24c之間，形成有水平方向延展之迁迴通路 24a此外4迁迴通路2知，並不限定於前述水平方向延展之形 狀，斜設形狀、彎曲形狀等，若是迂迴之形狀，任意形狀亦均可， 均可以具備如前述迂迴通路24a之後述的效果。 該連通孔24之另外的減音裝置是，構成該連通孔24之一部的 連通孔24d之剖面積，要比前述吸氣口 24b及前述排氣口24c的開口 面積大，且’在構成該連通孔24之一部，形成有貯留空氣之空氣 漥 24e。 12 丄幻1652 1备然而’藉由馬達丨3之旋轉’透顿伽絲14，前述旋轉體 ^旋轉’使前述偏心旋轉柳呈偏錢轉，藉此，前述搖動體6 马，，，使前述隔膜4、4之下端部上下移動。而在—方之隔剧之 下端部向下移動時，該隔膜4内會呈負壓，前述排氣間伽1"會密閉 7述環狀嘲8之前述内壁織上，亦即，前述排氣财^為 _ ’且前述吸氣_8會將前述貫通孔9自之狀態呈現開 亦P剞述吸氣閥部Vi為開啟狀態，如箭頭c所示—般，從前 述空氣導入孔7a吸氣進入前述隔膜4内。 其次，前述隔膜4之下端部向上移動時，前述隔膜4内會呈高 壓’前述吸氣閥體8會將前述貫通孔9密閉，將前述吸氣閥部义呈關 閉狀態，同時，前述排氣閥體19，會從前述内壁面版擴張直徑， 如箭頭D所示-般’從前述排氣閥部V2排氣。從該排氣閥額排出 之空氣，會通過前述環狀凹⑽，從前述魏孔17排出於前述盒 體2之外。 此外，隨著前述隔膜4之向上移動，前述下盒體此内會呈負 壓，透過前述連通孔2卜如箭頭E所示一般，$氣會流入前述馬達 盒體20内’藉此’該馬達盒體20内會呈負壓’透過前述吸氣孔22， 如箭頭F所不一般’吸入外氣。 13 1331652 此時，前述吸氣閥體8、8及前述排氡閥體19、19所產生的噪 音’會經由前述轴體7的空氣導入孔7a、前述下盒體此内、前述連 通孔24之排氣口24c、前述迂迴通路24a、前述連通孔24d、前述空 氣、漥24e、則述吸氣口 24b、及前述馬達盒體2〇，從前述吸氣孔22 排出外部，但是’藉由前述迂迴通路24a，因為聲音的傳達距離變 長，音壓得喊低，大幅降低了前述吸氣_8、8及前述排氣閥 體19、19所產生的臂音。 此外，前述連通孔24，因為構成該連通孔24之一部的連通孔 24d之剖面積’要比前述吸氣σ24b及前述排氣口⑽的開口面積 大，所以，聲音會在前述連通孔24d内擴散，可以降低音壓及降低 噪音。 再則，在前述連通孔24形成有貯留空氣之空氣這他，所以， 藉由該空氣賴河时賊敝聲音’減低音壓，相減低前述 吸氣閥體8、8及前述排氣閥體19、19所產生的噪音。 圖2為另-個小型泵25，該小型栗25形成有比連通孔小的複數 個連通孔26、26、··.，以取代前述小型泵（圖丨之”）的連通孔 (圖1之24)。亦即’複數個連通孔26、26、·.·，全體在確保與 前述連通孔（圖1之24)略為同量之空氣流量的範圍下盡可能的 細小0 14 1331652 藉由各細小形成之前述連通孔26、26、·..，具有減低音壓之 效果可以減低$述吸該憎8、8及前述排氣闊體19、19所產生 的噪音。 圖3為再另-個小型泵27，該小型泵27形成有連通孔28，以取 代前述小銳（圖1之23)的連通孔（圖丨之24)，該連通孔烈在 5亥連通孔28内突設有互為相反方向之2個肋條29、別作為減音裝 置’藉由该肋條29、29，空氣的流路會呈現彎曲。此外，該肋條 29亦可與則iTf盒m體形成，在訂盒獻與前述馬達盒體 20間’坎裝另外的料件3〇 ’在該另外的料件3〇上突設肋條29亦可。 再則，肋條29 ’可以設置至少HgUx上的任意數量。此時，亦可得 到略同樣之前述肋條29、29的後述效果。 藉由月ό述肋條29、29 ’形成彎曲的^氣流路，藉由該彎曲流 路’可以降低音壓，可以減低前述吸氣_8、8及前述排氣閱體 19、19所產生的噪音。 圖4為再另-個小型泵3卜該小型栗31形成有連通孔％，以取 代Α迷小型泵（圖1之23)的連通孔（圖k24)，該連通孔32在 該連通孔32内突設有2個壁33、33作為減音裝置，在丨方的壁33之 所定位置’開穿細縫34,在另-方的壁33與該細縫34相反的位置， 15 1331652 形成間隙35，藉由該壁33、33、該細縫34、及該間隙35，使空氣 之流路呈現彎曲。 此外’該壁33亦可與前述下盒體2c—體形成，在該下盒體2c 與前述馬達盒體2〇間，崁裝另外的料件（無圖示），在該另外的 料件上突設前述壁33亦可。再則，該壁33，可以設置至少1個以上 的任意數量。再則，可以適當選擇前述細縫34及前述間隙35。此 時’亦可得到略同樣之後述效果。 藉由該壁33、33、細縫34及間隙35，形成彎曲的空氣流路， 藉由該彎曲流路，可以降低音壓，可以減低前述吸氣閥體8、8及 前述排氣閥體19、19所產生的噪音。 、此外’前述連通孔2卜24、26、28之一部份，可以藉由在前 述下盒體2c上形成連通溝來設置，此時，亦可得到如前述相同的 效果，同時，具有容易加工該連通孔21、24、26、28之優點。 或者，亦可將前述連通孔2卜24、26、28形成管狀當作另外 7零件，將鱗件職於前述下盒驗與前述馬達讀2()上。此 時亦可得到如可述相同的效果，同時，具有容易加工該連通孔 21、24、26、28之優點。 1331652 心此外’本發明在不逃逸本發明之精神下，可以進行各種的改 麦，當然，本發明亦涵蓋該各種改變。 《發明之效果》 本么月如上述-實施财、之詳述，在_請專利細第丨項記載 =發明的小型泵中’音連通孔設有減音裝置，所以，藉由該減音 、置可以大幅減低吸朗體與魏閥體所產生之噪音。 科’申請專利範圍第2項所記载之發明，其上述之減音裝 置，是在上述連通孔上形成的迂迴通路，藉由該迁迴通路，可以 得到和中請專利翻第1項記載之發明同樣之效果。 糾，申請專利範圍第3項所記載之發明，其上述之減音裝 置，是上錢通孔内至少—部份之剖面積所形成之雜，要比上 述泵盒體開口之排氣口面積及上述馬達盒體開口之吸氣口面積 大，藉__孔，可赌柳”專·1 樣之效果。 科知⑴」 此外’ _請專利範圍第4項至第6項所記載之發明，直 滅音裝置4上述連通孔之空氣流路物之形狀，藉由該彎曲 流路’可靖㈣糊觸1項嫩發物樣之效果。 17 1331652 此外’申請專利範圍第7項所記載之發明，其上述之減音裝 置=在上錢通孔上形成增曲流路，至少有版上之肋條 ⑽犬設於該連通孔内，藉由該肋條，可以得到和申請專利範 圍第1項記載之發明略同樣之效果。 此外’申請專利範圍第8項所記載之發明，其上述之減音裝 置，是在上述連通孔上形成上述彎曲流路，至少有丨個以上之壁突 設於該連通孔内，而且，於所定雜形成Lslit)及/或間 隙，藉由該壁及細縫及/或間隙，可以得到和申請專利範圍御 έ己載之發明略同樣之效果。 、 4外’申凊專利範圍第9項所記載之翻，其上述之減音裝 ’疋在上錢通孔内，形成貯留空氣用的空氣湩。藉由該空氣 ,，可以御㈣請專利1晴1項記叙發明略同樣之效果。 此外’申請專利細第_所記叙翻，其上述之減音裝 置，是在確保所定线流量之範_，形成與狀口與排出口之 剖面積略同量之細小的複數個連通孔。藉由該連通孔，可以得到 σ申凊專利範圍第1項記載之發明略同樣之效果。 ^此外，申請專利範圍第η項所記載之發明，其上述連通孔至 夕—部份，為挪成於上述栗之連通溝所構成的，所以，除 1331652 了可以得到和申請專利範圍第1、2、3、4、5、6、7、8、9或10項 記載之發明的效果之外，藉由前述連通溝可以很容易地形成前述 連通孔，是十分奏效之發明。 1331652 【圖式簡單說明】 [圖1] 本發明之一實施型態的小型泵縱剖面圖。 [圖2] 本發明之其他實麵態，為設有魏鱗軌之小觀的縱 剖面圖。 [圖3] (rib)之小型泵 本發明之其他實施型態，連通孔上設有肋條 的縱剖面圖。 [圖4] 本發明之其他實施型態，連通孔内突 ^ ^ 百壁’在該壁所定位 置開牙有細縫’並在賴定位 圖。 风間隱之小型泵的縱剖面 [圖5] 習知例之小型泵的部份欠缺之縱剖面圖 【主要元件符號說明】 1 小型泵 2 泵盒體 2a 上盒體 2b 中盒體 2c 下盒體 20 1331652 3 泵室 4 隔膜 4a 鍔部 9 貫通孔 10 偏心旋轉軸 11 延設部 12 凹部 13 馬達 14 旋轉驅動軸 15 旋轉體 16 凹部 17 排氣孔 18 環狀凹溝 18a 内壁面 19 排氣閥體 20 馬達盒體 21 連通孔 22 吸氣孔 23、25、27、31 小型泵 24、26、28、32 連通孔 24a 迂迴通路 24b 吸氣口 21 排氣口 連通孔 空氣漥 肋條 料件 壁 細縫 間隙 安裝體 搖動體 轴體 空氣導入孔 吸氣閥體 貫通孔 22The outer side surfaces of the shaft bodies 7, 7 are densely disposed on the inner side surfaces of the hollow mounting bodies 5, 5 of the diaphragms 4, 4, and the diaphragms 4, 4 are attached to the rocking body 6. Further, a portion of the bottom portion of each of the diaphragms 4, 4 is cut away to form the suction valve bodies 8, 8 and at the same time 'through the slits, there are through holes 9, 9 and can be sucked by The gas valve bodies 8, 8' close or open the through holes 9, 9 to form an intake dam portion, and the center portion of the oscillating body 6 is inserted and fixed to oscillate by eccentrically rotating the oscillating body 6 The eccentric rotation axis is 1〇. Above the oscillating body 6, an extended portion η extending from the fascia box 2b is provided, and at the lower portion of the extended portion I, an open recess 12 is formed below, and the other side is The rotating body i5 is fixed to the upper end of the rotary drive shaft 14 of the motor 13 which is disposed on the lower side of the lower casing 71331652, and the recessed portion 16 is formed at a position apart from the center of the upper portion of the rotating body 15, and the eccentricity is formed. The upper end of the rotating shaft 10, that is, the lower end of the concave portion 12, is floated on the concave portion 16. Further, a vent hole 17 is opened in a central portion of the upper casing 2a, and is communicated with the vent hole I on the outer circumference of the vent hole 17 on the lower surface portion of the upper casing 2a. Two lower annular grooves 18 and 丨8 are provided below, and the exhaust valve bodies 19 and 19 formed from the upper ends of the diaphragms 4 and 4 are crimped to form the annular grooves 18 and 18. The inner wall surfaces 18a and 18a constitute exhaust valve portions v2 and V2. Further, a motor case 20 accommodating the motor 13 that connects the rotary drive shaft 14 is fixed to the case 2c as described above, and the lower case 2c and the motor case 2 are provided with communication The lower case 2c and the linear extension communication hole 2 of the motor case 20 are formed, and at least one or more of the outside of the motor case 2 is introduced into the motor case. Suction holes 22, 22. The motor 13 is driven, and the rotating body 15 rotates to rotate the eccentric rotating shaft 1 偏 eccentrically, whereby the oscillating body 6 is rocked to lower the lower ends of the diaphragms 4 and 4 The department moves up and down. When the lower end portion of the diaphragm 4 moves downward, the diaphragm 4 is under negative pressure, and the exhaust valve body 19 is sealed on the inner wall surface 18a of the annular groove 18, that is, the row The valve portion % is closed, 1331652 and the intake and the valve will be placed in the self-listening state of the through hole 9, that is, the suction valve is caught in the open state, as indicated by the arrow 〇 The air introduction hole 7a inhales into the diaphragm 4. Next, when the lower end portion of the diaphragm 4 is moved upward, the diaphragm 4 has a high pressure. The intake valve body 8 seals the through hole 9, and the intake valve portion is closed. The valve body 19 receives the expanded diameter from the inner wall surface, and the exhaust valve portion % exhaust gas is not described as in the case of the hoe head. The jade gas a discharged from the venting body 19 passes through the moon-shaped groove 18 and is out of the casing 2 from the vent hole. In addition, as the diaphragm 4 moves upward, the lower case body may be negatively inside ['through the communication hole 2 just as indicated by the arrow £, air will flow into the motor case 20'. When the motor case is _, it is pressed, and the air intake hole & as shown by the arrow F, the outside air is taken in. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei No. H11-324927 (Patent Document 1) [Patent Document 2] JP-A-2002-106471 (Picture) FIG. The small Wei described in the patent document of the prior art, by means of a gas mixture _ "the remainder of the valve, seals the diaphragm, forms a gas chamber, and the suction valve communicates with the air formed by the air chamber adjacent to the air chamber."空气.x 二气丨题 However, the suction _ is directly connected to the outside air through the air ,, so the suction valve and the reduction _ caused (four) the money has not been reduced. The structure of the small fruit described, the suction and exhaust valve body is formed on the _, and the bribe _ will pass through the air guiding hole of the oscillating body, the box under the pumping money, the communication hole, the motor box body And formed in the handlebar red box hole, the oblique portion is connected, in particular, through the through-box connection "to reduce the noise of the inhalation_ and the exhaust valve body. Wei will minimize the noise, even if it is the small hide described in the above-mentioned special offer 2, you must step in and reduce the noise. The purpose of the present invention is to provide a small pump using a diaphragm, which can solve the problem of the action of shouting (four) sounds of the large towel. The technical means of solving the problem 1331652 a kind of small pump, which is designed to shout the secret of the Yangxian room (diaphragm), and is connected with the built-in $16, and the pump box and the motor box are connected through the communication hole. The diaphragm is operated by the motor, and the sucking air is supplied from the motor casing through the communication hole to the __, the front lining through hole and the sound absorbing device; and the sound absorbing device is formed on a small pump for the bypass passage of the communication hole; and the shape reduction device of the above-mentioned communication device is formed by at least a portion of the cross-sectional area formed by the exhaust gas σφ of the opening of the pump casing and the opening of the motor casing a small pump having a large suction port area; and the above-mentioned sound reduction device, wherein the air flow path of the communication hole is formed by a small pump having a curved flow path; and the above-mentioned sound reduction device is formed in the communication hole Have a curved flow path, so that at least one or more ribs protrude from the small hole in the communication hole; and the sound absorbing device has the curved flow path formed in the communication hole, so at least a small pump having one or more walls projecting in the communication hole and having slits and/or gaps formed in a predetermined portion; and the sound reduction device for forming a stored air in the communication hole a small pump for air enthalpy; and the above-mentioned sound absorbing device, a small pump having a plurality of communication holes formed by a small cross-sectional area of the suction port and the discharge port within a range of ensuring a predetermined air flow rate; and at least a part of the above-mentioned communication hole The small pump is formed by the connection groove formed in the upper county. [Embodiment] An embodiment of the present invention will be described in detail with reference to Figs. 1 to 4 . This is the same as the above-mentioned part (4). The same component is attached with the same symbol and omitted. "23" is a small pump in Figure 1. The small pump is provided with a communication hole 24 for forming a relocation path. The sound device is a communication hole (21 in Fig. 5) of a small pump (丨 in Fig. 5) of a conventional example. That is, the communication hole 24' has a suction port 2 opening in the motor casing 2, and at a position obliquely downward from the side of the air inlet 2, the opening is opened to the lower box, at the suction port. Between the 24b and the exhaust port 24c, a retracting passage 24a extending in the horizontal direction is formed. Further, the retracting passage 2 is formed in the horizontal direction. The shape is not limited to the shape in the horizontal direction, and the shape and the curved shape are obliquely arranged. The shape and the arbitrary shape may be sufficient, and the effects described later in the bypass passage 24a may be provided. The other sound damper of the communication hole 24 is such that the cross-sectional area of the communication hole 24d constituting one of the communication holes 24 is larger than the opening area of the air inlet 24b and the air outlet 24c, and One of the communication holes 24 is formed with an air enthalpy 24e that stores air. 12 丄幻1652 1, however, 'by the rotation of the motor 丨3, 'the twirling gamma 14, the rotating body ^rotating' causes the eccentric rotating willow to be turned, whereby the oscillating body 6 The lower ends of the aforementioned diaphragms 4, 4 are moved up and down. When the end portion moves downwards under the side of the play, the diaphragm 4 will be under negative pressure, and the exhaust gas gamma 1" will be closed to the inner wall of the ring-like sneaker 8, that is, the aforementioned row The air intake ^ is _ ' and the inhalation _8 will present the through hole 9 from the state thereof, and the air intake valve portion Vi is in an open state, as indicated by an arrow c, from the air introduction hole 7a Inhalation enters the aforementioned diaphragm 4. When the lower end portion of the diaphragm 4 moves upward, the diaphragm 4 has a high pressure. The intake valve body 8 seals the through hole 9 to close the intake valve portion. The valve body 19 is expanded in diameter from the inner wall panel, and is exhausted from the exhaust valve portion V2 as indicated by an arrow D. The air discharged from the exhaust valve is discharged from the casing 2 out of the casing 2 through the annular recess (10). In addition, as the diaphragm 4 moves upward, the lower casing will have a negative pressure therein, and the gas will flow into the motor casing 20 through the communication hole 2 as indicated by an arrow E. In the motor casing 20, a negative pressure 'passes through the aforementioned suction holes 22, as shown by the arrow F, 'intakes the outside air. 13 1331652 At this time, the noise generated by the intake valve bodies 8 and 8 and the exhaust valve bodies 19 and 19 passes through the air introduction hole 7a of the shaft body 7, the lower casing, and the communication hole 24. The exhaust port 24c, the bypass passage 24a, the communication hole 24d, the air, the weir 24e, the intake port 24b, and the motor casing 2〇 are discharged from the intake hole 22, but by In the bypass passage 24a, since the sound transmission distance is long, the sound pressure is low, and the arm sounds generated by the intake air_8, 8 and the exhaust valve bodies 19, 19 are greatly reduced. Further, in the communication hole 24, since the cross-sectional area ' of the communication hole 24d constituting one of the communication holes 24 is larger than the opening area of the intake σ24b and the exhaust port (10), sound is in the communication hole 24d. Internal diffusion can reduce sound pressure and reduce noise. Further, in the communication hole 24, air for storing air is formed. Therefore, the squirrel sound "lower the bass pressure" by the air, and the intake valve bodies 8, 8 and the exhaust valve body are reduced. The noise generated by 19, 19. Fig. 2 shows another small pump 25 which is formed with a plurality of communication holes 26, 26, ... which are smaller than the communication holes, in place of the communication holes of the small pump (Fig. 1). 24), that is, 'a plurality of communication holes 26, 26, ..., the whole is as small as possible in the range of ensuring the same amount of air flow as the aforementioned communication hole (24 of Fig. 1) 0 14 1331652 by The finely-formed communication holes 26, 26, ..., have the effect of reducing the bass pressure, thereby reducing the noise generated by the suction of the dams 8, 8 and the venting bodies 19, 19. Figure 3 is another a small pump 27 having a communication hole 28 formed in place of the aforementioned small sharp (Fig. 1 23) communication hole (Fig. 24), which is protruded in the 5H communication hole 28 There are two ribs 29 in opposite directions, which are used as sound dampers. 'With the ribs 29 and 29, the air flow path is curved. In addition, the ribs 29 can also be formed with the iTf box m body. The box is provided with the above-mentioned motor casing 20, and the additional material 3' can be protruded from the other material member 3's. Further, the rib 29' can be It is possible to provide at least an arbitrary number of HgUx. At this time, the effect of the ribs 29 and 29 which are slightly similar can be obtained. The curved ribs 29, 29' form a curved air flow path by the curved flow path. 'The sound pressure can be lowered, and the noise generated by the inhalation _8, 8 and the ventilating reading bodies 19, 19 can be reduced. Fig. 4 shows another small pump 3, which is formed with a communication hole %, In place of the communication hole (Fig. k24) of the small pump (Fig. 1-23), the communication hole 32 has two walls 33, 33 protruding as a sound reduction device in the communication hole 32, and the wall 33 on the side The predetermined position 'opens the slit 34, and at the opposite position of the other wall 33 from the slit 34, 15 1331652 forms a gap 35, by the walls 33, 33, the slit 34, and the gap 35, The air flow path is curved. Further, the wall 33 may be formed integrally with the lower case 2c, and another material may be attached between the lower case 2c and the motor case 2 (not shown). The wall 33 may be protruded from the other material. Further, the wall 33 may be provided in an arbitrary number of at least one or more. The slits 34 and the gaps 35 are appropriately selected. At this time, the effect described later can be similarly obtained. By the walls 33, 33, the slits 34 and the gaps 35, a curved air flow path is formed by the bending. The flow path can reduce the sound pressure, and can reduce the noise generated by the intake valve bodies 8, 8 and the exhaust valve bodies 19, 19. Further, one of the aforementioned communication holes 2, 24, 26, 28, It is possible to provide the communication groove in the lower case 2c. In this case, the same effects as described above can be obtained, and at the same time, the communication holes 21, 24, 26, and 28 can be easily processed. Alternatively, the communication hole 2, 24, 26, 28 may be formed into a tubular shape as another 7 parts, and the scale member shall be subjected to the aforementioned lower casing inspection and the aforementioned motor reading 2 (). At this time, the same effect as described above can be obtained, and at the same time, there is an advantage that the communication holes 21, 24, 26, 28 can be easily processed. 1331652 In addition, the invention can be modified in various ways without departing from the spirit of the invention. Of course, the invention also covers the various modifications. "Effects of the Invention" This month, as described above, the details of the implementation of the financial regulations are described in the patents of the invention. In the small pump of the invention, the sound communication hole is provided with a sound reduction device. The setting can greatly reduce the noise generated by the suction body and the Wei valve body. In the invention described in the second aspect of the invention, the above-mentioned sound attenuating device is a bypass passage formed in the communication hole, and the retraction path can be used to obtain the first and second patents. The invention has the same effect. The invention described in claim 3, wherein the above-mentioned sound attenuating device is formed by at least a part of a sectional area of the upper hole, and is larger than an exhaust port area of the pump casing opening. And the opening of the motor box body has a large suction port area, and the __ hole can be used to slap the effect of the "1". Kochi (1)" In addition, the invention described in Items 4 to 6 of the patent scope is requested. The shape of the air flow path of the communication hole of the straight sound extinguishing device 4, by the curved flow path, can be used to touch the effect of one tender hair. 17 1331652 In addition to the invention described in claim 7, the above-mentioned sound attenuating device=forms a curved flow path on the upper hole, and at least the rib (10) of the plate is disposed in the communication hole, From the rib, the effect similar to the invention described in the first aspect of the patent application can be obtained. In the invention of the invention of claim 8, the sound damper device is characterized in that the curved flow path is formed in the communication hole, and at least one or more walls are protruded from the communication hole, and The predetermined formation of Lslit) and/or the gap, by the wall and the slit and/or the gap, can obtain the same effect as the invention of the patent application. 4, the outer section of the ninth application patent scope, the above-mentioned sound-reducing device is placed in the upper hole of the money to form an air enthalpy for storing air. With this air, you can use the (4) patent 1 clear one item to describe the same effect. Further, the above-mentioned sound attenuating device is a plurality of communication holes which are formed in a small amount which is slightly equal to the sectional area of the shape and the discharge port, in order to ensure the predetermined flow rate. By the communication hole, it is possible to obtain the effect similar to the invention described in the first item of the σ申凊 patent range. In addition, in the invention described in the item n of the patent application, the above-mentioned communication hole to the eve-part is formed by the connection groove of the above-mentioned chestnut, and therefore, in addition to 1331652, the patent application range is available. In addition to the effects of the invention described in the items 2, 3, 4, 5, 6, 7, 8, 9, or 10, the communication hole can be easily formed by the communication groove, which is a very effective invention. 1331652 BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] A longitudinal sectional view of a small pump according to an embodiment of the present invention. [Fig. 2] Another solid state of the present invention is a longitudinal sectional view in which a small view of a Wei scale rail is provided. [Fig. 3] Small pump of (rib) According to another embodiment of the present invention, a longitudinal sectional view of a rib is provided in the communication hole. [Fig. 4] In another embodiment of the present invention, the inner hole of the communication hole is located at the wall, and the tooth is provided with a slit and is positioned. Longitudinal section of a small pump hidden in the wind [Fig. 5] Longitudinal section of a small pump of a conventional example [Main component symbol description] 1 Small pump 2 Pump case 2a Upper case 2b Lower case 2c Case 20 1331652 3 Pump chamber 4 Diaphragm 4a Crotch portion 9 Through hole 10 Eccentric rotating shaft 11 Extension portion 12 Concave portion 13 Motor 14 Rotary drive shaft 15 Rotating body 16 Concave portion 17 Vent hole 18 Annular groove 18a Inner wall surface 19 Row Gas valve body 20 Motor case 21 Communication hole 22 Suction hole 23, 25, 27, 31 Small pump 24, 26, 28, 32 Communication hole 24a Retraction path 24b Suction port 21 Exhaust port communication hole Air rib rib piece Wall slit gap installation body swinging body shaft body air introduction hole suction valve body through hole 22