M368234 五、新型說明： 【新型所屬之技術領域】 本新型係有關一種封閉式工具機之散熱架構，尤指一種藉由馬達 轉子轉動之同時帶動氡流流動而達成散熱功效之工具機散熱架構。 【先前技術】 …、 自從電動馬達的發明開始，幾世紀以來不斷的進步與發展為人類 帶來生活上極大的便利，由最初工業用途的大型電動馬達，一直到體 積較小的家用電動馬達，最後應用到日常生活用品、卫具機等小型電 動馬達，其體積隨著構造、製造材料的改良與創新而越來越小，所能 應用的層面也越來越廣。 現今電動馬達可依構造區分出多種不同種類馬達，每種馬達都有 相異的使用特性，無論是體積、散熱、扭力、轉速、材質、製造成本、 控制方式等特徵，對於每觀動馬達料盡相同，無法直接斷定何種 電動馬達結構為最佳，反而必須考慮到使⑽魏、需求才能選擇最 適合的電動馬達，然而對於一般較小型的電動馬達而言，最嚴苛的使 用條件與環境莫過於工具機中的電動馬達。 應用於工具機巾的電動馬逹，能夠w考驗魏馬達所有特性， 例如通常會要求體積小、扭力足、概需求高、錢最重要於長時間 使用下的耐用性，只要上述某—鋪性表現擁有缺陷，就會造成工具 機無法作業或容易損壞，而其中㈣造成_的部分主要是電動馬達 内邛由轴承(Bearing)、馬達定子(Stator)上的線圈(c〇il)、以及電磁 (Ele_magnetism)所產生而歸的熱量，因秘量造成魏馬達過熱， 而直接影紅賤可否長時間猶，也献轉卫賤的耐用性。 般4見用於工具機的電動馬達都使用帶有電刷(Bmsh)與換向器 (Commutator)的錢馬達__ DC M〇t〇r)，然*該種馬達體積大° 效率低’且電顺躺撕魅敎騎該兩元件都會造成耗損 3 M368234 而視為須定時更換的消耗元件，因此工具機馬達漸漸的改用體積較 小、效率較高的直流無刷馬達(Brushless DC Mot〇r)來應用紅具機上， 但因為體積較小硫得馬達難钱缺為射，且細於工具機中 的直流無刷馬達更因為被包覆於較密閉的殼體内，無法輕易排除積 熱’谷易造成使㈣溫度過高，導致馬達過糾⑽如⑽影變工且機 的運作’因此有許多散熱結構相應而生，例如美國專利第6，職63〇號、 第7，166,939號、美國專利公開第2〇_23綱號、中華民國專利公告 第M2_號所示，為使用直流無刷馬達工具機中最常使用的内轉子 馬達(1丽Runner Motor)、结構’其主要的散熱方式通常絲心牌刪上 裝設有可連動的扇葉(Fan)或者散熱片歸)，藉由主馬達轉動的同 時連動扇葉或散熱片-同轉動’進而引域流流動於馬達上達成散敎 目的，此外，還更有-種設置另—組帶有扇葉的散熱馬達，無論主馬 達是否轉動’皆可利用散熱馬達持續進行散熱，然而，上述方式之效 果於工具機長時間使用下亦然有限，並且而外增加了許多體積與零 件’同時也增加了製造成本與電力雜；而直流無刷馬紅具機中較 少使用的外轉子馬達(0ut R_ M〇t〇r)結構，同樣有著如内轉子馬達 結構^散熱關題，耻也有娜斜轉子簡錄熱構造如中華 民國專利公告第娜％45號所示，主要於外轉子上開設有進氣孔，並 3體上亦_相對應之透孔，義外轉子轉動而吸進氣流，在由 :上之透孔排出氣流’藉此達到散熱的目的，然而該種外轉子直流 j馬達的散熱結構對於氣流賴動僅靠外轉子上的進氣孔斜切面來 2由於長__下所排除的積熱也有限吻b可知，應用於工 的錢無刷馬辆有許錢步的帥，⑽善健孩 的缺失。 【新型内容】 本新型之主要目的’在於_習知直流無刷馬達在侧式工具機 4 M368234 中易造成過熱的缺失’提供一種得以有效排除馬達中積熱的散熱結構。M368234 V. New Description: [New Technology Field] This new type relates to the heat dissipation structure of a closed machine tool, especially a machine tool heat dissipation structure that achieves heat dissipation by rotating the motor rotor while driving turbulent flow. [Prior Art] ... Since the invention of electric motors, continuous progress and development over the centuries have brought great convenience to human life, from large electric motors for industrial use to small household electric motors. Finally, it is applied to small electric motors such as daily necessities and armor machines. Its volume is getting smaller and smaller with the improvement and innovation of construction and manufacturing materials, and the application level is wider and wider. Today's electric motors can be distinguished by a variety of different types of motors. Each type of motor has different characteristics, regardless of volume, heat dissipation, torque, speed, material, manufacturing cost, control method, etc. In the same way, it is impossible to directly determine which electric motor structure is optimal. Instead, it must be considered that (10) Wei, the demand can select the most suitable electric motor, but for the generally smaller electric motor, the most severe use conditions and The environment is no more than an electric motor in a machine tool. The electric stirrup applied to the tool towel can test all the characteristics of Wei motor. For example, it usually requires small volume, good torque, high demand, and the most important thing is the durability under long-term use. If there is a defect in performance, it will cause the machine tool to be inoperable or easily damaged. Among them, the part that causes _ is mainly the inner motor of the electric motor, the bearing (Bingil), the coil on the motor stator (c〇il), and the electromagnetic (Ele_magnetism) The heat generated by Ele_magnetism caused the Wei motor to overheat due to the secret quantity, and the direct shadow of the red dragonfly can be used for a long time, and it also provides the durability of the defending dragonfly. As seen in the electric motor for the machine tool, the motor with the brush (Bmsh) and the commutator (Commutator) __ DC M〇t〇r), *the size of the motor is large ° low efficiency' And the electric device will cause the loss of 3 M368234 and it will be regarded as a consumable component that needs to be replaced regularly. Therefore, the machine tool motor is gradually changed to a smaller and more efficient DC brushless motor (Brushless DC Mot) 〇r) to apply the red machine, but because the small size of the sulfur motor is difficult to shoot, and the DC brushless motor in the machine tool is more easily wrapped in a tightly sealed housing, it is not easy Excluding the accumulated heat 'Gu Yi caused the temperature to be too high, causing the motor to over-correct (10), such as (10) shadow change and the operation of the machine's. Therefore, there are many heat-dissipating structures, such as US Patent No. 6, No. 63 No., No. 7 No. 166,939, U.S. Patent Publication No. 2_23, and Republic of China Patent Publication No. M2_, which is the most commonly used inner rotor motor (1 ran Runner Motor) and structure used in a DC brushless motor machine tool. 'The main way of cooling is usually the silk card is installed and can be linked. The fan blade or the heat sink is returned by the main motor rotating the fan blade or the heat sink - the same rotation, and then the flow field flows on the motor to achieve the purpose of diverging. In addition, there are more settings. In addition, the heat-dissipating motor with fan blades can use the heat-dissipating motor to continuously dissipate heat regardless of whether the main motor rotates or not. However, the effect of the above method is limited when the machine tool is used for a long time, and the volume is increased by a large amount. The part 'also increases the manufacturing cost and power miscellaneous; and the outer rotor motor (0ut R_ M〇t〇r) structure that is rarely used in the DC brushless horse red machine has the same structure as the inner rotor motor ^ heat dissipation The shame also has a naval rotor. The hot structure is shown in the Republic of China Patent Announcement No. 45, which is mainly provided with an air inlet hole on the outer rotor, and the corresponding hole is also on the 3 body. While sucking the intake air flow, the air flow is exhausted from the through hole in the space to thereby achieve the purpose of heat dissipation. However, the heat dissipation structure of the outer rotor DC motor is only dependent on the air inlet chamfer surface on the outer rotor for the air flow. 2 due to long __ The exclusion of the accumulated heat is limited kiss b shows that the money used in industrial brushless horse vehicles have many steps handsome money, lack of ⑽ good health of children. [New content] The main purpose of the present invention is to provide a heat-dissipating structure that can effectively eliminate heat accumulated in the motor by the conventional DC brushless motor in the side machine tool 4 M368234.
為達上述目的，本新型包含有一具有容設空間之工具機主體，於 該主體壁面上設有連通容設空間及外部之散熱口，並該容設空間内裝 設有一定子，而於該容設空間内設有一介於該定子與該主體之間之轉 子，令該轉子與該主體壁面形成一旋流空間，該轉子與該定子之間形 成-軸流空間，該旋流空間及該軸流空間具備有—徑域流通道而相 互連通，且该轉子上設有軸向氣流孔連通旋流空間及該軸流空間，而 於該轉子上還設有導流部，以該轉子姆該定子行旋轉運動，定子產 生熱氣流徑向自減讓喊流通道至該碰空間，該導流部透過該 散熱口排放職氣流至外部且引導外部冷氣赫該軸向驗孔進入該 軸流空間構成一循環散熱風流，即構成本新型之基本架構。 藉上述技術方案，本新型相較於習知技術至少具有下列優點： 一、 本新型之該導流部設韻轉子上，可與該轉子成形完 成’不會增加額外零件與組裝或製造步驟，避免因為額外的 散熱結構造成整體製造成本過高。 二、 本新型於直接於該轉子上設置該導流部之方式，令馬達可在 維持原本體積、以及不需要額外耗電的前提下，利用自身之轉 動達到散熱的目的。 【實施方式】 有關本新型之詳細綱絲_容，現就 ，圖丨』及⑷』所示，為本新型之立艘=:.、刻 面不思圖’如_示’本新型具有—工具機主體4G，該主⑽内部形 成-容設空間43 ’且於該主體4G壁面上設有至少—散細μ，藉由 該散細4!連通該容設空間Μ及該主體如之外部，而於該容設空間 43内固„又有-提供鋪磁場之定子31，於較佳實施圖式中該定子釘 係藉由定位於-定子座3〇上而固設於該容設空間Μ内，並於該容設 5 M368234 空間43 _該定子31與該主體4〇之間設有一轉子2〇，於圖式中，該 轉子20係呈似桶狀外觀而置於該定子31外周且留有間隙，令該轉子 20與該主體40壁面之間形成一旋流空間A，且該轉子2〇與該定子31 之間形成-軸流空間B，其中該旋流空間A及該轴流空間6之間更藉 由-徑向氣流通道C連通，此外還更可藉由設於該轉子2〇上之轴向氣 流孔26連通該旋流空間A及該軸流空間B，其中該轉子2〇上設有至 少-導流部25 ’該導流部25之用意在於隨著該轉子2〇轉動位移時推 動周遭空氣而形成旋流，上述即為本新型之基本架構。 而於上述較佳實施圖例中所示，該定子31與該轉子2〇共轴組設 -轉動軸10 ’而該轉動軸1G最末端連接—卫具組件u，於較佳實施圖 例中呈現簡單的磨砂輪卫具機，然而僅為便於解說，並不用以限定 本新型，轉雜10可轉絲之方式無轉子2()麵，而該工具 組件11也不限定於磨砂輪，可為其他利用旋轉動能之工具組件^ ;其 中該轉子20包含-底部21與一環部22，該底部21設有該轴向氣流孔 26，且該底部21更可設有一輔助導流肋27，該輔助導流肋27係用以 辅助氣流流向雜向紐孔26，補環部22職有雜件Μ，亦即 叆些磁性件28固設_軒2〇之_面24上，可藉上賴造令該轉 子加更加完善；於較佳實施例中，為了令該容設空間43於該轉子2〇 及該定子31外形成密閉之空間’可該主體則裝設有—鎖環％， 以順利形成封閉包覆該轉子20及定子31之容設空間43而隔 塵與異物。 接續前述圖式及内容，為了更進一步解說本新型之散熱原理，請 再參閲『圖3』所不，為本新型之剖面氣流流動示意 =該定子料行旋轉運動時，該定子31周她^ 軸流« B _該徑向氣流通道c 旋流朗a，接著藉由該 導流部2S所產生之氣流而透過該散熱口 w排放熱氣流至外部^導 M368234 外部冷氣流而進行冷、賊流之交換，為了制冷、減流之進出路 在’於圖式中該散熱口 ^更包含有一進風口如以及—出風口 412， 其中邊進風口 411及該出風口犯之相對位置僅為方便說明而定義，而 不用以限疋本新型’且進、出風交換冷、熱氣流之動作可發生於該進 風口 411及遠出風口 412之兩者，接著藉由所引進之冷氣流流經該軸向 Η ^ 26進入雜机工間B以構成一循環散熱風流’達到散熱之目 ，π參閱® 4』麻’林卿之剖面氣流赫示意圖2，更可於 :轉子2〇之底。ρ 21自外周緣向中央呈漸縮傾斜狀，以增加本新型循 環散熱風流的流動效率。 b Μ ® 5』所不’為本新型之另一實施例立體分解示意圖，其 塑==41更J設有—過濾元件42，避免灰塵或異物侵人馬達而影 、之整體筹命，而於圖式t更可見該導流部25除可如『圖!』 =^=置於該轉子2G外周面23之 ^導⑽^ ，然並不用以限定本新型，其導流部25之目的 ㈣可依f求選㈣導氣流效率最佳的㈣、弧曲、 _列方式，藉由上述技術内容，令封 得以輕易排除，大幅增加工具機之壽命及耐用性。馬達積熱 雖然本新型已以較佳實施例揭露如上， 财’叫新軸護範圍當視 綜上所述，本新型較習知的技術 ^生及進步性的法定創新專利要件，纽法合新 准本件新型專利申請案，以勵發明，至感德便。一貝局核 7 M368234 【圖式簡單說明】 圖1 為本新型之立體分解示意圖 圖2 為本新型之剖面示意圖 圖3 為本新型之剖面氣流流動示意圖1 圖4 為本新型之剖面氣流流動示意圖2 圖5 為本新型之另一實施例立體分解示意圖 【主要元件符號說明】 10 ..................... 轉動軸 11 ..................... 工具組件 20 ..................... 轉子 21 ..................... 底部 22 ..................... 環部 23 ..................... 夕卜周面 24 ..................... 内周面 25 ..................... 導流部In order to achieve the above object, the present invention comprises a main body of the machine tool having a space for accommodating, and a heat dissipation opening connecting the receiving space and the outer portion is disposed on the wall surface of the main body, and the fixing space is provided with a certain piece. a rotor interposed between the stator and the main body is disposed in the receiving space, so that the rotor forms a swirling space with the main body wall surface, and an axial flow space is formed between the rotor and the stator, the swirling space and the The axial flow space is provided with a radial flow passage and communicates with each other, and the rotor is provided with an axial air flow hole connecting the swirl flow space and the axial flow space, and the rotor is further provided with a flow guiding portion, and the rotor The stator rotates in a row, and the stator generates a radial flow of the heat flow to reduce the shouting passage to the collision space. The flow guiding portion discharges the exhaust airflow to the outside through the heat dissipation port and guides the external cold air to enter the axial flow. The space constitutes a circular cooling airflow, which constitutes the basic structure of the present invention. With the above technical solution, the present invention has at least the following advantages compared with the prior art: 1. The flow guiding portion of the present invention is provided on the rotor and can be formed with the rotor 'without adding additional parts and assembly or manufacturing steps, Avoid excessive manufacturing costs due to the extra heat dissipation structure. 2. The novel type is provided directly on the rotor so that the motor can use its own rotation to achieve the purpose of heat dissipation while maintaining the original volume and without requiring additional power consumption. [Embodiment] The detailed outline of this new type is shown in Fig. 及 and (4), which is the new type of ship =:., faceted without thinking 'such as _ show' this new type has - The main body (10) of the main machine (10) forms a receiving space 43' and is provided with at least a fine μ on the wall surface of the main body 4G, and the housing 4 is connected to the housing space and the external portion And the stator 31 is provided with a magnetic field in the receiving space 43. In the preferred embodiment, the stator nail is fixed to the receiving space by being positioned on the stator holder 3 A rotor 2 is disposed between the stator 31 and the main body 4〇. In the drawing, the rotor 20 has a barrel-like appearance and is placed on the outer periphery of the stator 31. And a gap is left to form a swirling space A between the rotor 20 and the wall surface of the main body 40, and an axial flow space B is formed between the rotor 2 and the stator 31, wherein the swirling space A and the shaft The flow spaces 6 are further connected by the radial air flow passage C, and furthermore, the swirl flow is connected by the axial air flow holes 26 provided on the rotor 2〇. Between the A and the axial flow space B, wherein the rotor 2 is provided with at least a flow guiding portion 25'. The flow guiding portion 25 is intended to form a swirling flow when the rotor 2 is rotationally displaced to push the surrounding air. That is, the basic structure of the present invention. As shown in the above preferred embodiment, the stator 31 and the rotor 2 are coaxially arranged with a rotating shaft 10' and the rotating shaft 1G is connected at the extreme end to the guard assembly u. In the preferred embodiment, a simple sanding wheel guard machine is presented. However, for convenience of explanation, it is not intended to limit the present invention. The method of turning the wire 10 can be rotated without the rotor 2 () surface, and the tool assembly 11 is not It is limited to the grinding wheel, and can be another tool component that utilizes rotational kinetic energy. The rotor 20 includes a bottom portion 21 and a ring portion 22, the bottom portion 21 is provided with the axial airflow hole 26, and the bottom portion 21 is further provided with an auxiliary device. The guiding rib 27 is used to assist the flow of air to the miscellaneous buttonhole 26, and the ring portion 22 has miscellaneous pieces, that is, the magnetic members 28 are fixed. In the above, the rotor can be further improved; in the preferred embodiment, in order to make the accommodation The space 43 forms a closed space around the rotor 2〇 and the stator 31. The main body is provided with a lock ring % to smoothly form a receiving space 43 covering the rotor 20 and the stator 31 to separate dust and In addition to the above drawings and contents, in order to further explain the heat dissipation principle of the present invention, please refer to FIG. 3 again, which is a schematic diagram of the cross-sectional airflow flow of the present invention. Zhou ^ ^ axial flow « B _ the radial air flow passage c swirling a, then through the air flow generated by the flow guiding portion 2S through the heat dissipation port w discharge hot air flow to the external control M368234 external cold air flow The exchange of cold and thief flow, in order to cool and reduce the flow in and out of the way, in the figure, the heat dissipation port further includes an air inlet such as the air outlet 412, wherein the edge air inlet 411 and the air outlet are in relative positions. For the convenience of description, it is not limited to the present invention. The action of the inlet and outlet exchange cold and hot air flow may occur at both the air inlet 411 and the far air outlet 412, and then the introduced cold air flow. Flow through the axial Η ^ 26 Iruma mechanic B to form a hetero cyclic cooling airflow 'achieve the purpose of cooling, see ® 4 [pi]' Ma 'the air flow cross-sectional schematic He Lin Qing of 2, but also to: 2〇 bottom of the rotor. ρ 21 is tapered from the outer circumference toward the center to increase the flow efficiency of the novel circulating heat dissipation. b Μ 5 5 所 所 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本 为本It can be seen in the figure t that the flow guiding portion 25 can be placed on the outer peripheral surface 23 of the rotor 2G as shown in FIG. 2, but is not used to limit the present invention. (4) It can be selected according to f (4) The best airflow efficiency (4), arc, and _ column method. With the above technical content, the seal can be easily eliminated, greatly increasing the life and durability of the machine tool. Although the present invention has been disclosed in the preferred embodiment as above, the "new" shaft protection range is described in the above, the newer and more technically advanced and progressive legal innovation patent elements, Newfax The new patent application for the new standard is to invent the invention. One Bay Bureau Core 7 M368234 [Simplified Schematic] Figure 1 is a schematic exploded view of the present invention. Figure 2 is a schematic cross-sectional view of the present invention. Figure 3 is a schematic view of the cross-flow flow of the present invention. 2 is a perspective exploded view of another embodiment of the present invention [Description of main components] 10 ..................... Rotating shaft 11 ..... ................ Tool assembly 20 ..................... Rotor 21 ........ ............. bottom 22 ..................... ring 23 ........... .......... 夕卜周面24 ..................... Inner circumference 25 .......... ...........
26 ..................... 軸向氣流子L 27 ..................... 辅助導流肋 28 ..................... 磁性件 30 ..................... 定子座 31 ............................... 定子 40 ..................... 主體 41 ..................... 散熱口 411 ..................... 進風口 412 ..................... 出風口 42 ..................... 過渡元件 43 ..................... 容設空間 M368234 50 ..................... 鎖環 A ..................... 旋流空間 B ..................... 轴流空間 C ..................... 徑向氣流通道26 ..................... Axial airflow L 27 ..................... Guide rib 28 ..................... Magnetic member 30 ..................... Stator Block 31 ............................... Stator 40 ............... ... body 41 ..................... vent 411 .................. ... air inlet 412 ..................... air outlet 42 .................... Transition element 43 ..................... accommodating space M368234 50 .................... . Locking Ring A ..................... Swirling Space B ..................... Axial flow space C ..................... Radial flow channel