經濟部中央標準局貝工消費合作社印装 ^4679 7_^_ 五、發明説明（i ) 【發明所屬之技術領域】 本發明係關於例如旋轉式歷縮機（密閉型壓縮機）和 將壓縮機構部以及電動機部壓入固著在其內部之密閉箱之 製造方法· 【先行技術】 例如被使用於構成空調機或冷藏庫等之冷凍循環裝置 之旋轉式壓縮機，係將屋縮機構部以及電動機部收容在密 閉箱內之密閉型廬縮機· 上述密閉箱係至少由箱髖和蓋體之2個零件所構成。 上述箱體係作成有底之筒狀或是兩端開口，該開口端係以 前述蓋體來密封》 將構成壓縮機構部之汽缸和構成電動機部之固定子， 以壓入或收縮配合之手段，固定在上述箱體之內周壁上· 因此，構成密閉箱時，特別是對於箱體之內徑精度*必須 ........... 提高所需尺寸之真圓度·圓筒度，來與裝設在其內部之壓 縮機構部和電動機部互相嵌合》 基於這些理由，當形成上述箱體時，作爲爲了得到更 高精度之手段，專注於擴管塑性加工法，亦即使用擴展法 〇 此種方法如第7圖所示*首先*如第7(A)圖所示 ，將被分割成複數個，稱爲擴張器之擴開用動作子S，插 入形成圓筒狀之箱體內周壁Μ內•在此狀態下，形成扇狀 之擴開用動作子S之兩側面互相地抵接，全體之剖面形狀 本紙張尺度適用中國囷家揉準（CNS > Α4规格（210X297公漦) (請先S讀背面之注意事項再填寫本頁) -訂- 線 -4 - 經濟部中央標準局貝工消費合作社印製 446 79 7 ' at • _B7 五、發明説明（2) 成爲環形。 接著，在擴開用動作子S之兩側端部內’強制地插入 圓錐狀的擴開體（不圖示）。擴開用動作子s相互地往直 徑方向擴開，其外周圓弧面與箱體之內周壁Μ抵接，而且 對內周壁Μ施加擴開力》 結果，箱體之內周壁Μ往直徑方向膨脹變形。實際之 變形量Xb爲數十mm〜數百，在圖中以極端誇張之 變形來表示。 但是，各擴開用動作子S形成扇狀之處，當擴開時， 各擴開用動作子S之兩側面相互地形成間隙。因爲間隙部 分對箱體本體無法施加擴開力，所以箱體的間隙之對向部 分不會擴開變形而保持原狀。 這些無擴管的部分稱爲分割部痕K* (或是稱爲擴張 器痕、擴張器分割部） 如第7圖（B )所示，上述分割部痕K形成之直徑必 A 1成爲箱體之內接圓徑。此乃爲使擴開用動作子S的外 周直徑與箱體之最終外徑一致所做之設計，但是由於箱體 材料之回彈量、擴管時的擴開量（擴張量）不加大則無法 形成所需要之直徑，圖中之外直徑線4 B 1爲膨脹變形後 之箱體內周壁Μ之直徑。 【發明所欲解決之課題】 然而，若驅動以往之密閉型壓縮機，則因壓縮過程而 由壓縮機構部產生之振動或上述之電動機部之電磁振動會 本紙張尺度適用中國國家標準（CNS > Α4規格（210X297公釐） (請先聞讀背面之注意事項再填寫本頁) 訂 線、 一 5 - 經濟部中央標隼局負工消費合作社印製 b 446797 A7 B7 ________ 五、發明説明（3) 傳達至箱體，並發出噪音， .如上所述，上述壓縮機構部或電動機部，因爲在分割 部痕之部分與箱體作強烈地接合，所以對壓縮機構部或電 動機部之支持就變得不安定。再進一步說明的話’例如在 電動機部的外周面形成冷媒氣體的導通路、或設置多個成 爲電磁鋼板之擠縫變形之逃部之切開部。 上述之分割部痕，在組合製造中一有誤差，便落入切 開部、或擱在切開部以外之電動機部外周面上。因此’振 動傳達變得不安定、複雜化，由箱體產生之噪音方向及發 生周波數紛亂不堪，而有噪音變高之問題。 又，精密零件的集合組合體（壓縮機構部），爲防止 組合變形，以對箱體不會造成強力壓入之方式來組裝。但 是因爲分割部痕之存在，使兩者產生局部接觸，造成精密 零件之一部份發生局部變化。此乃噪音發生之條件（原因 )，因此降低噪音之對策是非常迫切需要的。 另外*若在附著有極微量之油脂之狀態下來完成組裝 ，.則當實際冷凍循環運轉之時，油脂成分會溶入冷媒中而 使壓縮效率變差。因此以往是在將壓縮機構部和電動機部 組裝入箱體內後，進行脫脂（除去油脂）過程，將箱體內 部洗淨，完全除去油脂成分。洗淨劑係使用對電動機之捲 線等的絕緣包皮不會侵害之氟氯碳化合物。 換句話說，在組裝完畢後進行如此之洗淨係由於電動 機等之組裝係在油脂成分存在於箱體內周面上之狀態下來 進行之故。亦即，即使箱體內形成分割部痕，由於除去前 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公嫠) (請先閲讀背面之注^'項再填寫本頁) 訂 -6 - 經濟部中央標準局貝工消費合作社印製 44679 / A7 4^S7.Q 7_?Z_____ 五、發明説明（4 ) 之油脂成分成爲潤滑劑’因此不會發生卡住之情況而妨礙 生產效率/ 然而，由於近年來保護地球之觀念，氟氯碳已經被禁 止使用》作爲代替之洗淨劑而使用水溶性洗淨劑·然而此 種洗淨劑會對電動機之捲線等的絕緣包皮產生侵害’所以 在將電動機等組裝入箱體內部以前’必須先洗淨箱體內部Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative ^ 4679 7 _ ^ _ V. Description of the invention (i) [Technical field to which the invention belongs] The present invention relates to, for example, a rotary calendar machine (hermetic compressor) and a compression mechanism Method for manufacturing a closed box which is press-fitted inside the motor section and the motor section. [Prior art] For example, a rotary compressor used in a refrigeration cycle device constituting an air conditioner, a refrigerator, etc. Closed-type shrinking machine in which the motor unit is housed in a closed box. The above-mentioned closed box is composed of at least two parts of a box hip and a cover. The above box system is made into a bottomed cylinder or is open at both ends, and the open end is sealed with the aforementioned cover. "The cylinder constituting the compression mechanism part and the holder constituting the motor part are press-fitted or contracted. It is fixed on the inner peripheral wall of the above-mentioned box. Therefore, when constructing a closed box, especially for the accuracy of the inner diameter of the box * must ... For these reasons, when forming the above-mentioned box, as a means to obtain higher precision, focus on the plastic expansion method of pipe expansion, that is, The expansion method is used. This method is shown in Figure 7 * First * As shown in Figure 7 (A), it is divided into a plurality of expanders, called an expander, S, and inserted into a cylindrical shape. Inside the inner wall M of the box • In this state, the two sides of the fan-shaped spreading action S are in contact with each other, and the overall cross-sectional shape of this paper is applicable to the Chinese family standard (CNS > Α4 size ( 210X297 public address) (Please read the precautions on the back before filling in (Page)-Order-Line-4-Printed by the Shell Standard Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 446 79 7 'at • _B7 V. Description of the invention (2) It becomes a ring. Next, the two sides of the expansion action S The cone-shaped expansion body (not shown) is forcibly inserted in the part. The expansion action members s expand toward each other in the diameter direction, and the outer peripheral arc surface abuts the inner peripheral wall M of the box, and the inner peripheral wall As a result, the inner wall M of the box expands and deforms in the diameter direction. The actual amount of deformation Xb is tens of mm to several hundred, which is represented by extreme exaggerated deformation in the figure. However, each expansion is used for When the action element S forms a fan shape, when it is expanded, the two sides of each expansion action element S form a gap with each other. Because the gap part cannot apply the expansion force to the box body, the gap of the box is opposite. The part does not expand and deform and remains intact. These non-expanded parts are called division marks K * (or dilator marks, dilator dividers) As shown in Fig. 7 (B), the above-mentioned divisions The diameter formed by the mark K must be A 1 to become the inscribed circular diameter of the box. This is to make the expansion The opening diameter of the opener S is the same as the final outer diameter of the box, but it cannot be formed due to the rebound of the box material and the expansion amount (expanded amount) during expansion. The diameter, the outer diameter line 4 B 1 in the figure is the diameter of the inner wall M of the box body after expansion and deformation. [Problems to be Solved by the Invention] However, if the conventional hermetic compressor is driven, it is compressed by the compression process. The vibration generated by the mechanism department or the above-mentioned electromagnetic vibration of the motor department will be subject to Chinese national standards (CNS > Α4 size (210X297 mm)) (please read the precautions on the back before filling this page). 5-Printed by the Central Bureau of Standards, Ministry of Economic Affairs and Consumer Cooperatives b 446797 A7 B7 ________ V. Description of the invention (3) It is transmitted to the cabinet and makes a noise. As mentioned above, the above compression mechanism department or motor department, because The part of the divided part mark is strongly joined to the box body, so the support for the compression mechanism part or the motor part becomes unstable. To further explain, 'e.g., a refrigerant gas passage is formed on the outer peripheral surface of the motor portion, or a plurality of cutout portions are formed as escape portions that are deformed by caulking deformation of the electromagnetic steel plate. The above-mentioned divided part marks fall into the cut-out part or rest on the outer peripheral surface of the motor part other than the cut-out part if there is an error in the combined manufacturing. Therefore, the vibration transmission becomes unstable and complicated, and the direction and frequency of the noise generated by the cabinet are chaotic, and there is a problem that the noise becomes high. In addition, the assembly assembly (compression mechanism) of precision parts is assembled so as to prevent the assembly from being deformed so as not to press the case with a strong force. However, due to the existence of the split marks, local contact between the two parts results in local changes in a part of the precision part. This is a condition (cause) for noise to occur, so measures to reduce noise are urgently needed. In addition, * If the assembly is completed with a very small amount of grease attached, when the actual refrigeration cycle is running, the oil and fat components will dissolve in the refrigerant, resulting in poor compression efficiency. Therefore, conventionally, after the compression mechanism part and the motor part are installed in the cabinet, a degreasing (degreasing) process is performed, and the inside of the cabinet is washed to completely remove the grease components. Detergents use chlorofluorocarbons that do not damage the insulation covering of the motor windings. In other words, such cleaning is performed after the assembly is completed because the assembly of the motor or the like is performed in a state where the grease component is present on the inner surface of the casing. That is, even if the division marks are formed in the box, because the paper size before the removal of this paper applies the Chinese National Standard (CNS) Α4 size (210X297) 嫠 (Please read the note on the back ^ 'before filling this page) Order -6- Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, 44679 / A7 4 ^ S7.Q 7_? Z _____ V. Description of the Invention (4) The grease component becomes a lubricant 'so there will be no jamming that will hinder production efficiency / However Due to the concept of protecting the earth in recent years, chlorofluorocarbons have been banned. "Water-soluble detergents are used as alternative detergents. However, such detergents will infringe on the insulation sheath of motor windings, etc. ' 'The interior of the cabinet must be cleaned before it is assembled into the cabinet
Q 結果，變成將電動機部壓入完全除去油脂成分之箱體 內壁面內，有可能以上述分割部痕作爲起點而發生咬卡現 象。晈卡不但會發生壓入不良而阻礙生產性，而且由於咬 卡所產生之碎片會留在壓縮機構部內，會降低信賴性。 本發明係鑒於上述問題而被發明出來，其目的在於提 供一種密閉型壓縮機以及密閉型壓縮機的密閉箱之製造方 法，即使壓縮機構部或電動機部所產生之振動傳達至密閉 箱，也可以減低其噪音*而且可以防止組裝時所發生之咬 卡現象，不會產生局部變形，可進行高精度的組裝進而提 高可靠性之密閉型壓縮機以及密閉型壓縮機的密閉箱之製 造方法* 【解決課題之手段】 爲了解決上述之課題，本發明之第1個發明之密閉型 壓縮機，作爲申請專利範圍第1項，係針對於具有密閉箱 和固定安裝在此密閉箱內周壁面上之壓縮機構部以及電動 機部之密閉型壓縮機，其特徵爲： 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 經濟部中央標準局貝工消費合作社印製 A7 _^4B7SJ__Έ —___ 五、發明説明（5 ) 上述密閉箱，係由將壓縮機構部以及電動機部由開口 部壓入或是收縮配合地插入固定在其內周壁上的圓筒狀箱 體；及密封此箱體之開口部的蓋體所構成； 上述密閉箱，係憑藉塑性加工而被擴開，由此擴開所 產生的多數分割部痕，係形成在與上述壓縮機構部以及電 動機部接合之內接圓的外側之處。 作爲如申請專利範圍第2項之密閉型壓縮機，其中上 述壓縮機構部以及電動機部之外徑係比箱體之內接圓大^ 作爲如申請專利範圍第3.項之密閉型壓縮機，其中申 請專利範圍第2項所記載之上述壓縮機構部以及電動機部 係具備對上述箱體之分割部痕不產生干擾之切開部》 爲了達到上述之目的，本發明之第2個發明之密閉型 壓縮機的密閉箱之製造方法，作爲申請專利範圍第4項， 係針對於由圓筒狀的箱體和密封此箱體開口部之蓋體所構 成之密閉箱，上述密閉箱係憑藉塑性加工來形成之密閉型 壓縮機的密閉箱之製造方法，其特徵爲： .將被分割成多數個，其外周圓弧之外徑比箱體之內接 圓直徑大之擴開用動作子，插入內周壁內，使此擴開用動 作子往直徑方向擴開後，在內接圓之外側位置形成多數分 割部痕。 因此若憑藉以上發明之手段，由於電動機部之電磁振 動或是由於傳達至電磁鋼板之壓力波動所產生之振動，即 使介由與箱體之接合部而傳達至箱體，由於此外周面係與 箱體內周壁作面接觸，所以振動傳達安定，可以減少發生 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂_ 經濟部中央揉準局貝工消費合作社印製 44679 7 A7 _B7_- 五、發明说明（6 ) 噪音之方向或周波數之散亂。 此散亂之減少因爲限定了投入其他部分之噪音減低項 目之目標周波數，所以容易減低噪音。 而且，分割部痕並沒有與壓縮機構部以及電動機部作 很強烈地接觸*所以組裝入箱體內周壁之時不會發生咬卡 ，因此不會產生局部變形，可以保持構成零件之精度* 【本發明之實施形態】 以下，將本發明之一實施形態應用於，例如作爲密閉 型壓縮機之旋轉式壓縮機•根據圖面來說明· 如第5圖所示* 1爲密閉箱•此密閉箱1係憑藉後述 之製造方法來製造•由上下兩端部開口之箱體2，和密封 此箱體2之上下兩端部開□之蓋體3、 4所構成，各零件 之接合面係憑藉例如焊接手段使其完全密閉· 在上述密閉箱體1內部，收容了電動壓縮機本體5。 此電動壓縮機本體5之軸心往垂直方向，在旋轉軸之上部 側與幫動機部7連接，而在旋轉軸之下部側與壓縮機構部 8連接· 上述《動機部7係由壓入固定在密閉箱1之箱體2上 之固定子9和嵌著在上述旋轉軸6上之旋轉子10所構成 *上述旋轉子10係被配置成其外周面與上述固定子之內 周面存在有狹小的間隙· 上述旋轉軸6係與偏心部6 a —體地設置在與壓縮機 構部8對應之位置上，滾子1 1嵌合在此偏心部外周部上 本紙張AA適用中家標率< CNS > A4ftfr ( 210X297公釐) (請先閲讀背面之注意事項再填寫本頁) 訂 A7 B7 ^46 79 7 五、發明説明（7) 0 又.，偏心部6 a以及滾子1 1係介由框架1 2插嵌在 密閉箱1之上述箱體2上，收容在汽缸1 3內。汽缸之頂 面設置了主軸承1 4，而且在汽缸之底面設置了副軸承 15° 由汽缸13之內周面和主軸承14以及副軸承15所 圍繞之空間部稱爲汽缸室1 6。上述滾子1 1和偏心部 6 a旋轉自如地被收容在此汽釭1 6內。上述滾子1 1之 外周面係設定爲經常與汽缸室16之內周面作線接觸。 再者，雖然在圖中沒有表示出來，葉片以彈壓之狀態 被安裝在上述汽缸1 3中，其先端部與上述滾子1 1之外 周面彈性地抵接。因此，憑藉此葉片把汽缸室1 6區分爲 2室。 吸入口17自上述汽缸13之內周面貫通設置到外周 面，在此連通至外部的冷凍循環機器（蒸發器）之吸入管 18貫通密閉箱1與吸入口接續在一起^ .另外，吐出閥機構（不圖示）設置在上述主軸承14 上*連通至汽缸16內。又，在密閉箱1之上部蓋體3， 與連通外部的冷凍循環機器（冷凝器）之吐出管1 9接續 〇 然後，隨著旋轉軸6之旋轉，被壓縮氟體（冷媒氣體 )由吸入管18介由吸入口 17被吸入汽缸室16內。在 汽缸室1 6內，滾子1 1與旋轉軸6之偏心部6 a —同偏 心旋轉，而且葉片先端部對滾子周面滑動接觸，將汽缸室 本紙張尺度適用中國國家標準（CNS > A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 -i*. 經濟部中央標準局員工消費合作社印製 10 - 446797 44-6 7 9/_ b7_ 五、發明説明（8) 分開。 被吸入汽缸室16內之氣體係隨著被分開之汽缸室內 之容積減小而被壓縮，最終變成高壓狀態•當上昇至所規 定之壓力之處，被分開之高壓側汽缸室1 6與吐出閥機構 連通，而且此吐出閥機構開放，高壓氣體由汽缸室內導出 至密閉箱1內、然後，一旦密閉箱內充滿髙壓氣體，高壓 氣體便由吐出管1 9吐出。 接著，說明關於構成上述密閉箱1之上述箱體2之製 造方法。 如第2圖（A)所示，準備具有規定長度和寬度的矩 形鋼板2，如第2圖（B)所示，自兩端部開始彎曲成捲 狀。然後，如第2圖（C)所示，兩側邊緣部互相抵接形 成圓形。上述互相抵接之邊緣部係憑藉例如焊接手段等來 被完全地困定。以如此之手段來形成兩側端部爲開口之圓 筒狀箱體2。' 如第1圓所示，將被分割成8個，也被稱爲擴張器之 擴開用動作子2 0，插入圓筒狀之箱體內周壁2 a內。 經濟部中央樣準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 各個擴開用動作子2 0其剖面係形成圓弧狀，該兩側 面係擴開成爲扇狀。而且，在兩側面之內徑側和外徑側， 施加適宜的倒角加工。 在被插入箱體內周壁2 a內之狀態下，擴開用動作子 2 0之兩側面互相密合，剖面形狀成爲環形。各個擴開用 動作子2 0之內徑側的曲率半徑，係設定成可以在被插入 r -. .... •.丨 箱體2內之狀態下形成真圓狀。 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ：297公釐） -11 - ^46 79 7 A7 _B7_ 五、發明説明（9 ) 然而，擴開用動作子2 0之外徑側的曲率半徑，必須 設定成如以下所示。亦即，將擴開用動作子2 .0之外徑圓 弧之半徑當作Rc時，使該直徑R (2Rc)比內接圓 必八大。（2Rc>0A) 以如此之擴開用動作子2 0組合插入箱體內周壁2 a 內，而且使其分別沿著外徑方向強制地擴開。箱體內周壁 2 a係被擴開在數〜數百/zm之範圍內。 又，因爲使擴開用動作子2 0之外徑圓弧之直徑R ( 2R c )比內接圓0 A大，在動作子之兩側部位，突出量 Xa在數十〜數百/im之範圍內，形成往外徑側突出 之分割部痕2 1 。 將不形成分割部痕2 1之擴開用動作子2 0之外周圓 弧中央部分連將形成圓，此直徑亦即上述內接圓A，而 且箱體2之內徑爲» 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 再一次如第5圖所示，將構成電動機部7之固定子9 和構成壓縮機部8之框架2 1等，壓入憑藉以如此之手段 所形成之箱體2內。這些固定子9和框架1 2之外徑係比 上述箱體2之內接圓Α稍大，憑藉壓入或收縮配合等手 段將固定子9和框架21堅固地安裝在箱體2內》 再者，由於氟氯碳化合物之使用被限制，此時箱體2 已經使用水溶性洗淨劑來洗去油脂，在內周壁2 a上，完 全沒有殘留任何油脂》 例如將固定子9壓入完全脫脂之箱體2內之時，由於 在箱體內周壁2 a上，形成比內接圓0厶更往外側突出之 本紙^尺度適用中國國家標準（CNS ) A4規格（210X297公釐] -12 - 經濟部中央標準局負工消費合作社印裝 A7 B7 五、發明説明（10) 分割部痕21i所以固定子9之圓周面部會接觸到分割部 痕2 1，因此不會發生卡住之事* 內接圓必A和箱體2之內徑<6 B大致相同，而旦固定 子9之外徑比內接圓必A稍大*所以固定子9以面接觸之 狀態下被壓入固定在箱體內周壁2 a上。又，構成壓縮機 部8之上述汽缸框架也在同樣的狀態下被壓入固定在箱體 內周壁2 a上。 如第3圖所示，特別是在上述固定子9之情況，該周 面上等間隔地存在4處平坦的切開部9 a。另外，上述擴 開用動作子2 1被分割成8部分，形成8處之分割部痕 2 1，所以上述切開部9 a係每間隔1個分割部痕2 1地 壓入。 由於上述分割部痕21係比內接圓4A更往外側突出 所以與上述切開部9 a之間形成相當大容量之空間部。 可以確保將此空間作爲冷媒氣體的導通路。 又，如第4圖所示，在使擴開用動作子2 0擴大至最 大程度之狀態下，相鄰的動作子之間產生間隙。如前所述 ，上述分割部痕2 1係比內接圓4A更往外側突出，在上 述擴開用動作子之間的間隙部分並沒有對實際的分割部痕 之頂點部分施加推力，所以若將此頂點部分擴大，則形成 具有一定程度之曲率半徑之凹部。或者，形成.平坦狀，至 少頂點部分沒有突出。 於是，隨著冷凍循環之運轉驅動此密閉型壓縮機之時 ，由於電動機部7之電磁振動或是由於傳達至電磁鋼板之 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X297公嫠） (請先閲讀背面之注$項再填寫本頁)Q As a result, the motor part is pressed into the inner wall surface of the case where the grease component is completely removed, and there is a possibility that the seizure may occur with the above-mentioned division marks as a starting point. Cards not only suffer from poor press-fitting and impede productivity, but fragments generated by biting the cards will remain in the compression mechanism, which will reduce reliability. The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a hermetic compressor and a method of manufacturing a hermetic box of the hermetic compressor. Even if vibration generated by the compression mechanism part or the motor part is transmitted to the hermetic box, Minimize noise * and prevent seizures during assembly without local deformation, hermetic compressors that can be assembled with high accuracy to improve reliability, and hermetically sealed compressor manufacturing methods * 【 Means to solve the problem] In order to solve the above problem, the hermetic compressor of the first invention of the present invention, as the first item in the scope of patent application, is directed to a hermetically sealed box and fixedly installed on the inner peripheral wall surface of the hermetically sealed box. The hermetic compressors of the compression mechanism department and the motor department are characterized by: This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page) A7 _ ^ 4B7SJ__Έ —___ printed by the Bureau of Standardization and Consumer Cooperatives of the Bureau of Standards 5. Explanation of the invention (5) The above-mentioned closed box, The compression mechanism part and the motor part are inserted into the cylindrical box body fixed to the inner peripheral wall of the opening part by press-fitting or shrink-fitting through the opening part; and a cover body sealing the opening part of the box body; It is expanded by plastic working, and most of the division mark generated by the expansion is formed on the outside of the inscribed circle that is joined to the compression mechanism portion and the motor portion. As a hermetic compressor as described in item 2 of the patent application, wherein the outer diameter of the compression mechanism section and the motor section is larger than the inscribed circle of the box ^ As a hermetic compressor as described in item 3. Among them, the compression mechanism section and the electric motor section described in the second patent application range are provided with a cut-out section that does not interfere with the marks of the division of the box body. In order to achieve the above-mentioned object, the closed type of the second invention of the present invention The manufacturing method of the closed box of the compressor, as the fourth item in the scope of patent application, is directed to a closed box composed of a cylindrical box and a cover sealing the opening of the box. The above-mentioned closed box is made by plastic processing. The method for manufacturing a hermetic box of a hermetic compressor formed by the method is characterized in that: it is divided into a plurality of, and the outer circle arc has an outer diameter larger than that of the inscribed circle of the box. In the inner peripheral wall, after the expanding action member is expanded in the diameter direction, a plurality of divided part marks are formed at positions outside the inscribed circle. Therefore, if the means of the above invention is adopted, the vibration caused by the electromagnetic vibration of the motor part or the pressure fluctuation transmitted to the electromagnetic steel plate, even if it is transmitted to the box through the joint portion with the box, The inner wall of the box is in surface contact, so the vibration transmission is stable, which can reduce the occurrence of this paper. The Chinese standard (CNS) A4 specification (210X297 mm) is applicable. (Please read the precautions on the back before filling this page.) Order _ Economy Ministry Central Printed by Zhunzhu Bureau Shellfisher Consumer Cooperative 44679 7 A7 _B7_- V. Description of the invention (6) The direction of noise or the dispersion of frequency. This reduction in clutter is easy to reduce noise because it limits the target frequency of noise reduction projects invested in other parts. In addition, the division marks are not in strong contact with the compression mechanism section and the motor section *. Therefore, no biting will occur when assembled into the inner wall of the box, so no local deformation will occur, and the accuracy of the component parts can be maintained. Embodiments of the invention] Hereinafter, one embodiment of the present invention is applied to, for example, a rotary compressor as a hermetic compressor. Explanation will be given based on the drawing. As shown in FIG. 5 * 1 is a hermetic box. This hermetic box 1 It is manufactured by the manufacturing method described later. It consists of a box 2 with upper and lower ends open, and lids 3 and 4 that seal the upper and lower ends of the box 2 open. The joint surface of each part depends on For example, it is completely sealed by welding means. Inside the sealed case 1, the electric compressor body 5 is housed. The axis of the electric compressor body 5 is perpendicular to the upper part of the rotary shaft and connected to the power part 7 and the lower part of the rotary shaft is connected to the compression mechanism part 8. The above-mentioned "motive part 7 is fixed by press-fitting" The stator 9 on the casing 2 of the closed box 1 and the rotor 10 embedded on the rotation shaft 6 * The rotor 10 is arranged so that the outer peripheral surface and the inner peripheral surface of the stator exist Narrow clearance · The above-mentioned rotation shaft 6 is integrally provided with the eccentric portion 6 a at a position corresponding to the compression mechanism portion 8, and the rollers 11 are fitted on the outer peripheral portion of the eccentric portion. < CNS > A4ftfr (210X297 mm) (Please read the precautions on the back before filling out this page) Order A7 B7 ^ 46 79 7 V. Description of the invention (7) 0 And., eccentric part 6 a and roller 1 1 is inserted into the above-mentioned box 2 of the closed box 1 through a frame 12 and is housed in a cylinder 13. A main bearing 14 is provided on the top surface of the cylinder, and a sub bearing 15 ° is provided on the bottom surface of the cylinder. A space portion surrounded by the inner peripheral surface of the cylinder 13 and the main bearing 14 and the sub bearing 15 is referred to as a cylinder chamber 16. The roller 11 and the eccentric portion 6 a are rotatably accommodated in the steam cylinder 16. The outer peripheral surface of the roller 11 is set to always be in linear contact with the inner peripheral surface of the cylinder chamber 16. In addition, although not shown in the figure, the blade is mounted in the cylinder 13 in a resilient state, and its tip end elastically abuts against the outer peripheral surface of the roller 11. Therefore, the cylinder chamber 16 is divided into two chambers by virtue of the blade. The suction port 17 is penetrated from the inner peripheral surface of the cylinder 13 to the outer peripheral surface, and the suction pipe 18 of the refrigeration cycle machine (evaporator) connected to the outside passes through the closed box 1 and is connected to the suction port ^. In addition, the discharge valve A mechanism (not shown) is provided on the main bearing 14 and communicates with the cylinder 16. The lid 3 on the upper part of the closed box 1 is connected to the discharge pipe 19 of the refrigerating cycle machine (condenser) communicating with the outside. Then, as the rotary shaft 6 rotates, the compressed fluorine gas (refrigerant gas) is sucked in. The tube 18 is sucked into the cylinder chamber 16 through a suction port 17. In the cylinder chamber 16, the roller 11 and the eccentric part 6 a of the rotating shaft 6 rotate concentrically, and the tip of the blade slides into contact with the peripheral surface of the roller. The paper size of the cylinder chamber applies the Chinese national standard (CNS > A4 size (210X297mm) (Please read the notes on the back before filling in this page) Order -i *. Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 10-446797 44-6 7 9 / _ b7_ V. Invention Explanation (8) Separate. The gas system sucked into the cylinder chamber 16 is compressed as the volume of the divided cylinder chamber decreases, and finally becomes a high-pressure state. • When it rises to the prescribed pressure, the separated high-pressure side The cylinder chamber 16 is in communication with the discharge valve mechanism, and the discharge valve mechanism is opened, and the high-pressure gas is led out from the cylinder chamber to the sealed box 1. Then, once the sealed box is filled with the pressurized gas, the high-pressure gas is discharged from the discharge pipe 19. Next, a method for manufacturing the box 2 constituting the closed box 1 will be described. As shown in FIG. 2 (A), a rectangular steel plate 2 having a predetermined length and width is prepared. As shown in FIG. 2 (B), Both ends start to bend Rolled. Then, as shown in Fig. 2 (C), the edge portions on both sides abut against each other to form a circle. The abutting edge portions are completely trapped by, for example, welding means. Means to form a cylindrical box 2 with open ends on both sides. 'As shown in the first circle, it will be divided into eight, also known as a spreader 20, and inserted into the cylinder. The inner wall of the box is within 2 a. It is printed by the Consumer Cooperative of the Central Bureau of Procurement, Ministry of Economic Affairs (please read the precautions on the back, and then fill out this page). Both sides are expanded into a fan shape. In addition, appropriate chamfering is applied to the inner and outer diameter sides of the two sides. When inserted into the inner wall of the box 2 a, the actuator 20 for expansion is used. The two sides are in close contact with each other and the cross-sectional shape becomes a ring. The radius of curvature of the inner diameter side of each of the spreading action elements 20 is set to be inserted into the box 2 of r-. .... •. 丨It forms a true round shape in the state. This paper size applies to China National Standard (CNS) Α4 specification (210 ×: 29 7mm) -11-^ 46 79 7 A7 _B7_ V. Description of the Invention (9) However, the radius of curvature of the outer diameter side of the expansion actuator 20 must be set as shown below. That is, the expansion When the radius of the outer diameter of the opening action 2.0 is regarded as Rc, the diameter R (2Rc) must be larger than the inscribed circle. (2Rc > 0A) Insert the combination of the opening action 2 in this way. The inner wall 2a inside the box is forcibly expanded along the outer diameter direction. The inner wall 2a is expanded in the range of several hundreds to several hundred / zm. Also, because of the expansion action The diameter R (2R c) of the outer diameter arc of 20 is larger than the inscribed circle 0 A. On both sides of the actuator, the amount of protrusion Xa is in the range of tens to hundreds / im. Of the division marks 2 1. A circle will be formed by connecting the central part of the outer arc of the expanding action element 2 1 which does not form the division mark 2 1. This diameter is also the above-mentioned inscribed circle A, and the inner diameter of the box 2 is »Central Standard of the Ministry of Economy Printed by the Bureau ’s Consumer Cooperative (please read the precautions on the back before filling out this page). As shown in Figure 5, once again, the stator 9 constituting the motor section 7 and the frame 21 constituting the compressor section 8 are to be pressed. Into the box 2 formed by this means. The outer diameter of these anchors 9 and frame 12 is slightly larger than the inscribed circle A of the above-mentioned box 2. The anchor 9 and the frame 21 are firmly installed in the box 2 by means of press-fitting or shrink fit. However, because the use of chlorofluorocarbons is restricted, at this time, the casing 2 has used water-soluble detergent to wash away the grease, and there is no grease remaining on the inner peripheral wall 2a. For example, press the holder 9 completely When the inside of the degreased case 2 is formed on the inner wall 2 a of the case, a paper protruding more outwardly than the inscribed circle 0 厶 is formed. The dimensions are applicable to the Chinese National Standard (CNS) A4 (210X297 mm) -12- Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Consumer Cooperatives, printed A7 B7 V. Description of the invention (10) The division mark 21i, so the circumferential face of the holder 9 will contact the division mark 21, so no jamming will occur * Inside The inner diameter of the connecting circle A and the box 2 are approximately the same, and the outer diameter of the anchor 9 is slightly larger than the inner diameter of the connecting circle A *. Therefore, the fastener 9 is pressed and fixed in a state of surface contact. On the inner wall 2a of the casing. The above-mentioned cylinder frame constituting the compressor section 8 is also the same. In the state, it is press-fitted and fixed on the peripheral wall 2 a of the box. As shown in FIG. 3, especially in the case of the above-mentioned anchor 9, there are four flat cutouts 9 a at regular intervals on the peripheral surface. In addition, The expansion operator 21 is divided into eight parts to form eight division marks 21, so the incisions 9a are pressed in at intervals of one division mark 21. Since the above-mentioned division marks 21 Since it protrudes more outward than the inscribed circle 4A, a relatively large volume space portion is formed between the incision circle 9a and the space. This space can be ensured as a channel for the refrigerant gas. As shown in FIG. In the state where the expansion operator 20 is expanded to the maximum extent, a gap is created between adjacent operators. As described above, the above-mentioned division mark 21 protrudes more outward than the inscribed circle 4A, The gap between the opening action elements does not apply a thrust force to the vertex portion of the actual division mark, so if this vertex portion is enlarged, a concave portion having a certain radius of curvature is formed. Or, it is formed. Flat, at least The vertex part is not protruding. When the hermetic compressor is driven with the operation of the refrigeration cycle, the Chinese national standard (CNS) Λ4 specification (210X297 cm) is applicable due to the electromagnetic vibration of the motor unit 7 or the paper size transmitted to the electromagnetic steel plate (please first (Read the note on the back and fill in this page)
* 4 46 7 Ο - 經濟部中央標準局员工消費合作社印裝 A7 B7 玉、發明説明（n) 壓力波動所產生之振動，即使介由與箱體2之接合部而傳 達至密閉箱1 ，由於此外周面係與箱體內周壁2 a作面接 觸，所以振動傳達安定，減少發生噪音之方向或周波數之 散亂。 而且，分割部痕2 1並沒有與壓縮機構部8以及電動 機部7作很強烈地接觸，所以組裝入箱體2內部之時不會 發生晈卡*因此不會產生局部變形，可以保持構成零件之 精度。 第6爵表示驅動本發明之構成的壓縮機和以往之壓縮 機，實際測定其噪音值之結果》 如第6圖（B)所示，對於以往之構成的壓縮機，在 各運轉周波數之下，噪音程度之最高值散亂程度較大，然 而如第6圖（A)所示，對於本發明之構成的廑縮機，在 各運轉周波數之下，噪音程度之最高值散亂程度比以往之 壓縮機小，因此可以減低噪音。 再者，作爲設定上述擴開用動作子2 0之圓弧外徑之 條件，雖然在上述實施形態中，係設定成比內接圓必A大 ，但是並不是僅限於此，即使憑藉圓弧外徑尺寸不同之多 數個圓弧集合體，設定成使分割部痕2 1不會與箱體2內 接圓接觸，也可以得到同樣的效果" [發明的效果】 如以上所述，申請專利範圍第1項之發明係憑藉塑性 加工來構成密閉箱之箱體，且多數之分割部痕被形成在內 本紙張尺度適用中國國家標準（CNS > A4規格（2H)X297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 -14 - 經濟部中央標準局員工消費合作社印製 ^ 4 Ο "/ 〇 y A7 ____;__B7 五、發明説明（12) 接圓之外側位置上β 申請專利範圍第2項之發明係使壓縮機構部以及電動 機部之外徑比箱體之內接圓大》 申請專利範圍第3項之發明係使壓縮機構部以及電動 機部具備對上述箱體之分割部痕不產生干擾之切開部。 申請專利範圍第4項之發明係關於一種箱體，係將分 割成多數個外周圓弧之外徑比箱體之內接圓直徑大之擴開 用動作子，插入內周壁內，往直徑方向擴開後，在內接圓 之外側位置形成多數分割部痕。 因此若憑藉以上之發明，即使將壓縮機構部以及電動 機部壓入完全除去油脂之箱體內壁面內，也不會發生卡卡 住之事，可以防止局部變形•進行高精度的組裝，進而提 高可靠性。 而且，因爲電動機部與箱體作面接觸，所以振動傳達 安定，可以減低發生噪音之方向和周波數之散亂；另外， 箱體憑藉電動機部而被補強，所以具有增大抑ftf振動之效 果..，因此具有減低噪音之效果。 【圖面說明】 第1圖係表示本發明之一實施形態之密閉箱之箱體和 製造此箱體所需之擴開用動作子之剖面平面圖。 第2圖之（A)至（C)圖係以箱體之成形過程順序 來說明本發明之實施形態之圖。 第3圖係關於本發明實施形態之將電動機部的固定子 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 -15 - 經濟部中央標準局員工消費合作社印製 λ7 _ _B7__五、發明説明（13) 壓入箱體內周壁之狀態之剖面圓.。 第.4圖係關於本發明實施形態之由於擴開用動作子所 產生之分割部痕擴大圖。 第5圖係關於具備憑藉本發明實施形態之製造過程所 形成之密閉箱之密閉型壓縮機剖面圖* 第6圖（A)係驅動本發明構造之密閉型壓縮機時之 噪音特性圖。 第6圖（B)係驅動以往構造之密閉型壓縮機時之噪 音特性圖。' 第7圖（A)係以往之密閉箱之箱體和爲了製造此箱 體之擴開用動作子之剖面圓》 第7圖（B)係以往所形成之密閉箱之箱體之剖面圖 (請先閲讀背面之注f項再填寫本頁) 訂 【圖號說明】 1 :密閉箱 • 2 :箱體 2 a :箱體內周壁 3，4 :蓋體 7 :電動機部 8 :壓縮機構部 9 a :切開部 20:擴開用動作子 2 1 :分割部痕 本紙張尺度適用中國國家標準（CNS ) A4说格（210X297公釐）* 4 46 7 Ο-Printed on A7 B7 by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs, Jade invention description (n) The vibration caused by pressure fluctuations is transmitted to the closed box 1 even through the joint with the box 2, because In addition, the peripheral surface is in surface contact with the peripheral wall 2 a in the cabinet, so the vibration is transmitted stably, and the direction of noise or the dispersion of the number of cycles is reduced. In addition, the split part mark 21 does not make strong contact with the compression mechanism part 8 and the motor part 7, so no sticking will occur when assembled into the case 2 * so no local deformation will occur, and the component parts can be maintained The accuracy. No. 6 shows the result of actually measuring the noise value of the compressor of the present invention and the conventional compressor. As shown in FIG. 6 (B), the conventional compressor is The maximum value of the noise level is scattered. However, as shown in FIG. 6 (A), for the shrinking machine of the present invention, the maximum value of the noise level is scattered under each operating frequency. It is smaller than conventional compressors, so noise can be reduced. In addition, as a condition for setting the outer diameter of the arc of the expanding operator 20, although in the above embodiment, it is set to be larger than the inscribed circle, A, but it is not limited to this. The plurality of arc aggregates with different outer diameters are set so that the division mark 21 does not contact the inscribed circle of the box 2 and the same effect can be obtained. [Effect of the invention] As described above, apply The invention of item 1 of the patent scope is to form the box of a closed box by plastic processing, and most of the division marks are formed on this paper. The Chinese paper standard (CNS > A4 size (2H) X297 mm) is applied ( (Please read the precautions on the back before filling this page) Order-14-Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs ^ 4 〇 " / 〇y A7 ____; __ B7 V. Description of the invention (12) Position outside the circle The invention in item 2 of the above patent application scope is to make the outer diameter of the compression mechanism part and the motor part larger than the inscribed circle of the box. The invention in item 3 of the patent scope is to make the compression mechanism part and the motor part Division of body The cut does not interfere with the incision. The invention in item 4 of the scope of patent application relates to a box body, which is an expansion actuator that is divided into a plurality of outer peripheral arcs having an outer diameter larger than the diameter of the inscribed circle of the box body, and is inserted into the inner peripheral wall toward the diameter direction. After the expansion, most of the division marks are formed at positions outside the inscribed circle. Therefore, if the above-mentioned invention is adopted, even if the compression mechanism part and the motor part are pressed into the inner wall surface of the box for completely removing grease, it will not be stuck, which can prevent local deformation and perform high-precision assembly, thereby improving reliability. Sex. In addition, because the motor part is in surface contact with the box body, the vibration transmission is stable, which can reduce the direction of noise and the dispersion of the number of cycles. In addition, the box body is reinforced by the motor part, so it has the effect of increasing the ftf vibration suppression. .. Therefore, it has the effect of reducing noise. [Description of Drawings] Fig. 1 is a cross-sectional plan view showing a box body of a closed box according to an embodiment of the present invention and an expansion actuator required for manufacturing the box body. (A) to (C) of FIG. 2 are diagrams illustrating the embodiment of the present invention in the order of the forming process of the box. Fig. 3 is about the paper size of the fixed part of the motor unit according to the embodiment of the present invention. The paper size of the Chinese National Standard (CNS) A4 (210X297 mm) is applied. (Please read the precautions on the back before filling this page.) Order -15- Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs λ7 _ _B7__ V. Description of the invention (13) The cross section of the state pressed into the peripheral wall of the box. Fig. 4 is an enlarged view of the division mark generated by the spreading action according to the embodiment of the present invention. Fig. 5 is a cross-sectional view of a hermetic compressor provided with a hermetic box formed by a manufacturing process according to an embodiment of the present invention. Fig. 6 (A) is a noise characteristic diagram when the hermetic compressor having the structure of the present invention is driven. Fig. 6 (B) is a noise characteristic diagram when a hermetic compressor having a conventional structure is driven. '' Fig. 7 (A) is a cross-sectional circle of a conventional closed box and an operator for expanding the box for manufacturing the same box. "Fig. 7 (B) is a cross-sectional view of a conventional closed box. (Please read the note f on the back before filling this page) Order [Illustration of the drawing number] 1: closed box • 2: box 2 a: inner wall of the box 3, 4: cover 7: motor section 8: compression mechanism section 9 a: Cut-out part 20: Expansion action element 2 1: Divided part mark The paper size applies Chinese National Standard (CNS) A4 standard (210X297 mm)