201011167 九、發明說明： 【發明所屬之技術領域】 本發明係關於-種壓縮機，尤其是一種具有外轉 達之壓縮機。 【先前技術】 一般來說使用由轉子與定子所構成之馬達 =行驅動，現今市面的馬達多以外側為定子、内側為轉 =結構所組成。於先前技街t，使㈣轉子式單相定速 =之壓縮機，其效率較差，且馬達體積較大。後有使用 轉子式無刷直流馬達之壓、 率’惟仍然無法解決馬達體積較機大的馬達政 r 之扭力較小，僅能適用於如遙控飛機等低扭力需 因此，有必要提供一種壓 以改善先前技術所存在㈣題。、、>轉子式馬達， 【發明内容】 本發明之目的係在提供一種 馬達為冷媒壓縮之驅動裝置。、’ 、使用外轉子式 包二達體成=:置本 冷媒_裝置係容置於殼體内。外 5 201011167 外轉子、内定子以及至少一軸承 置；外轉子係固定於曲軸；内定子係位於外&子 曲輛係連接冷媒壓縮裴 4丨尔仅於外轉子内； 至少-軸承設於内定子與曲轴H定制 j 固定於殼體。 脾門弋子 【實施方式】 為讓本發明之上述和其他目的、特徵和優點能更 ❹ 懂二下文特舉出本發明之具體實施例，並配合所附圖=易 作5^·細說明如下。 請參考圖1，為本發明之壓縮機實施例之示意圖。 機1可用於空調系統(例如冷氣機、冰箱等），且壓縮機^ 為立式或臥式。壓縮機1主要包括殼體9〇、冷媒壓縮\ 與外轉子式馬達2。 置10 其中，设體90供容置冷媒壓縮裝置1〇及外轉子式馬達 2’並且冷媒壓織置10及外轉子式馬達2固定於殼體如， ^得壓縮機1於運轉時降低震動與噪音。其中，殼體9〇可為 ❸高壓殼體或低壓殼體。 冷媒壓縮裝置10係容置於殼體9〇内。冷媒壓縮裝置 Μ係為一般常見型態之冷媒壓縮裝置，舉例來說，其可為 往復式、迴轉式、渦卷式等。由於冷媒壓縮裝置1〇係屬習 知技術，因此不再贅述其細部結構。關於冷媒壓縮裝置1〇 的固定方式，於本實施例中，係將冷媒壓縮裝置1〇之外圍 與殼體90之間’以焊接方式（如二氧化碳焊接)加以固定。 外轉子式馬達2主要包括曲軸2〇、外轉子3〇盥内定 子40’舉例來說，外轉子式馬達2可為無刷直流馬達，其 201011167 具有高效能之特色。於本實施财，外轉子式馬達2位於 冷媒壓縮裝置10的上方，惟外轉子式馬達 壓縮裝置Π)的下方。使用外轉子式馬達2的優勢在於1 相同之扭力輸出之下’可減少約一半之體積，、 料與降低成本。 e 曲軸20係連接冷媒壓縮裝置10。進-步來說，冷縣 縮裝置10具有轴心孔’軸d之内徑與曲軸默外徑相配 合’使得曲軸2G恰可置人軸心孔。因此，由外轉子式馬達2 斤產生的動力便可經由曲轴20輸出後驅動冷媒壓縮裝置 曲軸20更包括盤體22，盤體22之形狀與外轉子⑽之外 側略為相同。盤體22係以緊固件(例如螺絲、螺栓或鉚钉等) 固定於外轉子30之外侧’藉盤體22以連結曲軸20與外轉子 3〇，使得曲軸20與外轉子3〇可同步旋轉。 由於本實施例中，冷媒壓縮裝置1〇係為單汽缸，其會 產生運作不平衡的現象。為了解決此一問題，因而使用平 衡塊70，平衡塊70係靠近盤體22之外圍部位，並且盤體22 係固疋於平衡塊7〇與外轉子3〇之間。於外轉子式馬達2運轉 時，平衡塊70即可產生平衡作用。惟須注意的是，若冷媒 壓縮裝置10為雙汽缸或渦卷式汽缸，則可不需要使用平衡 塊70。 内定子40係大部份位於外轉子3〇内，而設置軸承6〇於 内疋子40與曲轴2〇之間’以避免内定子4〇與曲轴2〇直接摩 擦。軸承60之數量可視曲轴2〇之長度而配置為一個或多 個。當内定子4〇之長度較小時，可僅設置一個軸承6〇，其 201011167 位於内定子40之中央（如圖1所示）；當内定子40之較長時， 可設置多個軸承60 ’以減低曲轴20與馬達2之晃動程度。 内定子40之一側係非包覆於外轉子30内，而是外露於 外轉子30之外緣。為了穩固内定子40，使用固定件50以便 將内定子40固定於殼體90。於本實施例中，固定件50之截 面係呈门字型，其外形略呈圓盤狀，固定件50可藉由鎖固 件將内定子40相互鎖固’另外，固定件50之外緣係焊接(例 如浮凸焊接)於殼體90。關於固定件50之材質可視需求選擇 〇 所用之材質，舉例來說，其係可為鈑金件，若鈑金件之強 度不足以滿足需求時則可改用铸鐵。 由於壓縮機1運作時，外轉子式馬達2之内定子40係為 高溫狀態。為了幫助散熱，外轉子式馬達2之内部具有散熱 流道，係貫通内定子40與外轉子30，以使冷媒藉散熱流道 而對内定子40進行散熱。散熱流道可由多個散熱孔所共同 構成。 於本實施例中，内定子40之一侧包括至少一第一散熱 ❿孔42，外轉子30之一侧包括至少一第二散熱孔32，固定件 50包括至少一第三散熱孔52，盤體22包括至少一第四散熱 孔24。其中’第三散熱孔52之位置係配合第一散熱孔42之 位置’第二散熱孔32之位置係配合第四散熱孔24之位置。 藉由第一散熱孔42、第二散熱孔32、第三散熱孔52、 第四散熱孔24與内定子40的間隙，共同形成可供冷媒流通 之散熱通道。藉由第四散熱孔24與第二散熱孔32以便將冷 媒導引進入内定子40内部，再藉由第一散熱孔42與第三散 熱孔52以供冷媒流出。 201011167 接著請參考圖2,為本發明之壓縮機另一實施例之示意 圖。於上述實施例最大不同之處在於，該固定件5〇a僅局部 與内定子40a接觸鎖固，内定子40a係貫穿固定件5〇a，因此 固定件50a並無散熱孔設計，内定子40a之第一散熱孔42a 即可供冷媒流出外轉子式馬達2a。 綜上所陳，本發明無論就目的、手段及功效，在在均顯 示其迥異於習知技術之特徵。惟須注意，上述實施例僅為 例示性說明本發明之原理及其功效，而非用於限制本發明 〇之範圍。本發明之權利保護範圍應如後述之申請專利範圍 所述。 【圖式簡單說明】 圖1係本發明之壓縮機實施例之示意圖。 圖2係本發明之壓縮機另一實施例之示意圖。 【主要元件符號說明】 冷媒壓縮裝置10 曲轴20 第四散熱孔24 第二散熱孔32 第一散熱孔42、42a 第三散熱孔52 平衡塊70 φ 壓縮機1、la 外轉子式馬達2、2a 盤體22 外轉子30 内定子40、40a 固定件50、50a 軸承60 殼體90201011167 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a compressor, and more particularly to a compressor having an external transfer. [Prior Art] In general, a motor consisting of a rotor and a stator is used. The motor in the market today is composed of a stator on the outside and a structure on the inside. In the previous technical street t, the (four) rotor type single-phase fixed speed = the compressor, the efficiency is poor, and the motor is large. After that, the pressure and rate of the rotor type brushless DC motor are used. However, the motor with a large motor volume is not able to solve the problem. The torque of the motor is small, and it can only be applied to low torque such as a remote control aircraft. Therefore, it is necessary to provide a pressure. To improve the existence of the previous technology (4). And a rotor motor, SUMMARY OF THE INVENTION An object of the present invention is to provide a driving device in which a motor is a refrigerant compression. , ', use the outer rotor type package two body formation =: set the refrigerant _ device system is placed in the housing. Outside 5 201011167 outer rotor, inner stator and at least one bearing; outer rotor is fixed to the crankshaft; inner stator is located outside and the sub-curved system is connected to the refrigerant compression 裴 4 丨 only in the outer rotor; at least - the bearing is located at The inner stator and the crankshaft H are custom-fitted to the housing. The above-mentioned and other objects, features and advantages of the present invention will become more apparent. as follows. Please refer to FIG. 1 , which is a schematic view of an embodiment of a compressor of the present invention. The machine 1 can be used in an air conditioning system (such as an air conditioner, a refrigerator, etc.), and the compressor is either vertical or horizontal. The compressor 1 mainly includes a casing 9 〇, a refrigerant compression \\ and an outer rotor type motor 2. Wherein, the body 90 is provided for accommodating the refrigerant compression device 1 and the outer rotor motor 2', and the refrigerant pressure woven 10 and the outer rotor motor 2 are fixed to the casing, for example, the compressor 1 is reduced in vibration during operation. With noise. Wherein, the housing 9A can be a high pressure housing or a low pressure housing. The refrigerant compression device 10 is housed in the casing 9A. The refrigerant compression device is a refrigerant compression device of a general type, and may be, for example, a reciprocating type, a rotary type, a scroll type or the like. Since the refrigerant compression device 1 is a conventional technique, its detailed structure will not be described again. In the present embodiment, the fixing means of the refrigerant compression device 1 is fixed by welding (e.g., carbon dioxide welding) between the periphery of the refrigerant compression device 1 and the casing 90. The outer rotor type motor 2 mainly includes a crankshaft 2 〇 and an outer rotor 3 〇盥 inner stator 40'. For example, the outer rotor type motor 2 can be a brushless DC motor, and its 201011167 has high performance characteristics. In the present embodiment, the outer rotor type motor 2 is located above the refrigerant compression device 10, but below the outer rotor type motor compression device (Π). The advantage of using the outer rotor type motor 2 is that the same torque output can reduce the volume by about half, material and cost. e The crankshaft 20 is connected to the refrigerant compression device 10. In the case of the step, the cold-reducing device 10 has the axial hole 'the inner diameter of the shaft d matches the outer diameter of the crankshaft' so that the crankshaft 2G can be placed in the shaft hole. Therefore, the power generated by the outer rotor type motor can be driven by the crankshaft 20 to drive the refrigerant compression device. The crankshaft 20 further includes a disk body 22 having a shape slightly the same as the outer side of the outer rotor (10). The disk body 22 is fixed to the outer side of the outer rotor 30 by fasteners (for example, screws, bolts or rivets, etc.). The disk body 22 is coupled to the crankshaft 20 and the outer rotor 3〇 so that the crankshaft 20 and the outer rotor 3〇 can rotate synchronously. . In the present embodiment, the refrigerant compression device 1 is a single cylinder, which causes an imbalance in operation. In order to solve this problem, the balancing block 70 is used, the weighting block 70 is close to the peripheral portion of the disk body 22, and the disk body 22 is secured between the weighting block 7〇 and the outer rotor 3〇. When the outer rotor type motor 2 is operated, the balance block 70 can be balanced. It should be noted that if the refrigerant compression device 10 is a two-cylinder or scroll-type cylinder, the balance block 70 may not be required. The inner stator 40 is mostly located within the outer rotor 3〇, and the bearing 6 is disposed between the inner detent 40 and the crankshaft 2〇 to avoid direct friction between the inner stator 4〇 and the crankshaft 2〇. The number of bearings 60 may be configured as one or more depending on the length of the crankshaft 2〇. When the length of the inner stator 4〇 is small, only one bearing 6〇 may be provided, and the 201011167 is located at the center of the inner stator 40 (as shown in FIG. 1); when the inner stator 40 is long, a plurality of bearings 60 may be disposed. 'To reduce the degree of sway of the crankshaft 20 and the motor 2. One side of the inner stator 40 is not covered in the outer rotor 30, but is exposed to the outer edge of the outer rotor 30. In order to stabilize the inner stator 40, a fixing member 50 is used to fix the inner stator 40 to the housing 90. In this embodiment, the fixing member 50 has a cross-sectional shape and a slightly disk-shaped shape. The fixing member 50 can lock the inner stator 40 to each other by a locking member. In addition, the outer edge of the fixing member 50 is Welding (e.g., embossing) is applied to the housing 90. The material of the fixing member 50 can be selected according to the requirements. 〇 The material used can be, for example, a sheet metal part. If the strength of the sheet metal part is insufficient to meet the demand, the cast iron can be used instead. Since the compressor 1 operates, the stator 40 inside the outer rotor type motor 2 is in a high temperature state. In order to assist heat dissipation, the outer rotor type motor 2 has a heat dissipation passage therein, which penetrates the inner stator 40 and the outer rotor 30 to allow the refrigerant to dissipate heat from the inner stator 40 by the heat dissipation passage. The heat dissipation channel can be composed of a plurality of heat dissipation holes. In this embodiment, one side of the inner stator 40 includes at least one first heat dissipation hole 42 , and one side of the outer rotor 30 includes at least one second heat dissipation hole 32 . The fixing member 50 includes at least one third heat dissipation hole 52 . The body 22 includes at least one fourth heat dissipation hole 24. Wherein the position of the third heat dissipation hole 52 matches the position of the first heat dissipation hole 42. The position of the second heat dissipation hole 32 matches the position of the fourth heat dissipation hole 24. The first heat dissipation hole 42, the second heat dissipation hole 32, the third heat dissipation hole 52, and the gap between the fourth heat dissipation hole 24 and the inner stator 40 together form a heat dissipation passage through which the refrigerant can flow. The fourth heat dissipation hole 24 and the second heat dissipation hole 32 are used to guide the refrigerant into the inner stator 40, and then the first heat dissipation hole 42 and the third heat dissipation hole 52 are used to supply the refrigerant. 201011167 Next, please refer to Fig. 2, which is a schematic view of another embodiment of the compressor of the present invention. The maximum difference between the above embodiments is that the fixing member 5〇a is only partially in contact with the inner stator 40a, and the inner stator 40a penetrates through the fixing member 5〇a. Therefore, the fixing member 50a has no heat dissipation hole design, and the inner stator 40a The first heat dissipation hole 42a allows the refrigerant to flow out of the outer rotor type motor 2a. In summary, the present invention, regardless of its purpose, means, and efficacy, exhibits characteristics that are different from conventional techniques. It is to be noted that the above-described embodiments are merely illustrative of the principles of the invention and its advantages, and are not intended to limit the scope of the invention. The scope of protection of the present invention should be as described in the scope of the patent application to be described later. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of an embodiment of a compressor of the present invention. Figure 2 is a schematic illustration of another embodiment of a compressor of the present invention. [Main component symbol description] Refrigerant compression device 10 Crankshaft 20 Fourth heat dissipation hole 24 Second heat dissipation hole 32 First heat dissipation hole 42, 42a Third heat dissipation hole 52 Balance block 70 φ Compressor 1, la Outer rotor motor 2, 2a Disk body 22 outer rotor 30 inner stator 40, 40a fixing member 50, 50a bearing 60 housing 90