TWI453090B - The thermal structure of the machine - Google Patents
The thermal structure of the machine Download PDFInfo
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- TWI453090B TWI453090B TW099129219A TW99129219A TWI453090B TW I453090 B TWI453090 B TW I453090B TW 099129219 A TW099129219 A TW 099129219A TW 99129219 A TW99129219 A TW 99129219A TW I453090 B TWI453090 B TW I453090B
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Description
本發明有關一種工具機的導熱結構，尤指一種應用於工具機並將熱量傳導至外部的導熱結構。The invention relates to a heat conducting structure of a machine tool, in particular to a heat conducting structure applied to a machine tool and conducting heat to the outside.
工具機由於體積小、價錢較低，並且可連接不同的應用工具而形成多種變化型態，如研磨盤、砂輪機、鑽孔機、電動板手等多種型態，可協助作業人員快速執行某些工作程序而廣受歡迎。Due to its small size, low price, and the ability to connect different application tools, the machine tool can be used to form a variety of changes, such as grinding discs, grinders, drilling machines, electric wrenches, etc. These work procedures are very popular.
目前業界常見的工具機，主要包括有一本體，並於本體內設置一電路板、一受電路板驅動的馬達、以及一隨馬達轉動的工具軸，且電路板驅動馬達與工具軸轉動後，將一併帶動設置於工具軸的作動件運作，而達到對工件加工的目的；工具機中的馬達因為被包覆於較密閉的殼體內，無法輕易排除積熱，容易造成使用時溫度過高，導致馬達過熱而影響工具機的運作，因此有許多散熱結構相應而生，例如美國專利第6,789,630號、第7,166,939號等專利案，其散熱方式係於軸心上裝設有可連動的扇葉或者散熱片，藉由主馬達轉動的同時連動扇葉或散熱片一同轉動，進而引起氣流流動於馬達上達成散熱目的。另外，又如中國CN201478938號專利案所示，該專利案主要是透過工具機本體於對應馬達的位置設置散熱口，藉此對馬達提供散熱的效果。At present, the common machine tool in the industry mainly includes a body, and a circuit board, a motor driven by the circuit board, and a tool shaft that rotates with the motor are arranged in the body, and after the circuit board driving motor and the tool shaft rotate, The driving device disposed on the tool shaft is driven to achieve the purpose of processing the workpiece; the motor in the machine tool cannot be easily excluded from heat accumulation because it is wrapped in a relatively closed casing, which is likely to cause excessive temperature during use. The motor is overheated and affects the operation of the machine tool. Therefore, there are many heat dissipation structures. For example, in U.S. Patent Nos. 6,789,630 and 7,166,939, the heat dissipation method is to install a movable fan blade on the shaft or The heat sink rotates together with the fan blade or the heat sink while the main motor rotates, thereby causing airflow to flow on the motor to achieve heat dissipation. In addition, as shown in the Chinese patent CN201478938, the patent mainly provides a heat dissipation port through the position of the machine tool body corresponding to the motor, thereby providing a heat dissipation effect to the motor.
然而，上述的專利案主要都是對馬達進行散熱，但是工具機運轉時，除了馬達會產生熱量外，控制用的電路板也會於控制晶片、IC產生高熱，勢必要有相應的散熱方式，才能確保電路板正常運作，在美國第7,699,687號專利案便揭露了電路板散熱的方式，該專利案揭露一種手持的研磨機，該研磨機具有一外殼體、一設置於該外殼體內的工具軸、以及一設置於該工具軸上的驅動馬達，且外殼體設有一握持部，電路板係設置於該握持部內，該握持部並於電路板的位置設有複數散熱孔，使電路板所產生的熱量可由散熱孔排出，藉此改善電路板積熱的問題。However, the above patents mainly provide heat dissipation for the motor. However, in addition to the heat generated by the motor when the machine tool is running, the control circuit board also generates high heat in the control chip and the IC, and it is necessary to have a corresponding heat dissipation method. In order to ensure the normal operation of the circuit board, the method of dissipating heat of the circuit board is disclosed in the U.S. Patent No. 7,699,687. The patent discloses a hand-held grinder having an outer casing and a tool shaft disposed in the outer casing. And a driving motor disposed on the tool shaft, and the outer casing is provided with a holding portion, and the circuit board is disposed in the holding portion, and the holding portion is provided with a plurality of heat dissipation holes at the position of the circuit board to make the circuit The heat generated by the board can be discharged by the heat dissipation holes, thereby improving the heat build-up of the board.
但是，一般在使用工具機對工件加工時，容易產生大量粉塵，粉塵將由握持部上的散熱孔侵入工具機，且附著在電路板上，除了弄髒電路板以外，也有可能造成電路板上電子元件的短路或損壞，導致工具機無法運作。However, when machining a workpiece using a machine tool, it is easy to generate a large amount of dust. The dust will invade the machine tool from the heat dissipation hole on the grip portion and adhere to the circuit board. In addition to soiling the circuit board, the dust may also cause the circuit board. A short circuit or damage to the electronic components prevents the machine from functioning.
本發明的主要目的，在於解決上述的缺失，不但可對電路板進行散熱，同時更可隔絕粉塵，防止粉塵侵入電路板。The main object of the present invention is to solve the above-mentioned defects, not only to dissipate heat from the circuit board, but also to isolate dust and prevent dust from intruding into the circuit board.
為達上述目的，本發明提出一種工具機的導熱結構，其包括有一工具機以及一設置於該工具機的散熱座，該工具機設有一握把部，該握把部內部形成一容置空間，且該容置空間容納有一電路板，並於一端形成一開口；而該散熱座具有一裝設於該開口的散熱部，以及一連接該散熱部並延伸至該容置空間的承載部，該承載部係承設該電路板，並接觸該電路板的發熱源，以傳導熱量至該散熱部進行散熱，如是構成本發明的主要架構。In order to achieve the above object, the present invention provides a heat-conducting structure of a machine tool, which includes a machine tool and a heat sink disposed on the machine tool. The machine tool is provided with a grip portion, and an internal space is formed in the grip portion. The accommodating space accommodates a circuit board and defines an opening at one end thereof; and the heat dissipating block has a heat dissipating portion mounted on the opening, and a bearing portion connecting the heat dissipating portion and extending to the accommodating space, The carrying portion bears the circuit board and contacts the heat source of the circuit board to conduct heat to the heat dissipating portion for heat dissipation, which constitutes the main structure of the present invention.
經由上述技術方案可知，本發明相較於習知技術而言，可省去於握把部開設散熱孔的時間，更能防止粉塵侵入握把部，避免握把部內的電路板損壞，同時又可對電路板進行散熱，使電路板與工具機正常運作。According to the above technical solution, the present invention can save the time for opening the heat dissipation hole in the grip portion compared with the prior art, and can prevent the dust from intruding into the grip portion and avoid damage to the circuit board in the grip portion, and at the same time The board can be cooled to make the board and machine tool work properly.
有關本發明的詳細說明及技術內容，現就配合圖式說明如下：The detailed description and technical content of the present invention will now be described as follows:
請參閱「圖1及圖2」所示，本發明係為一種工具機的導熱結構，如圖中所示本發明主要包括有一工具機10，例如一研磨機，以及一設置於該工具機10的散熱座20；該工具機10設有一讓使用者握持操作的握把部11，該握把部11內部為中空而形成一容置空間12，該容置空間12係容納有一電路板30，用以驅動該工具機10運作、控制工具機10轉速等，且該容置空間12於一端形成一開口13，以裝設該散熱座20。Referring to FIG. 1 and FIG. 2, the present invention is a heat transfer structure of a machine tool. As shown in the figure, the present invention mainly includes a machine tool 10, such as a grinder, and a machine 10 disposed thereon. The heat sink 20 is provided with a grip portion 11 for the user to hold the handle. The grip portion 11 is hollow to form an accommodating space 12, and the accommodating space 12 receives a circuit board 30. The operation of the power tool 10 is controlled to control the speed of the power tool 10, and the receiving space 12 defines an opening 13 at one end to mount the heat sink 20.
另請參閱「圖3」所示，該散熱座20包含有一裝設於該工具機10開口13的散熱部21，以及一連接該散熱座20並延伸至該容置空間12的承載部22，其中，該散熱部21內部形成一組裝空間211，且該散熱部21與該承載部22分別設有一第一接合板212與一第二接合板222，該承載部22的第二接合部係容納於該組裝空間211，並與該散熱部21的第一接合板212相應接設，該第一接合板212與該第二接合板222於相應位置分別設有通孔214、224以穿設一電源接頭32，藉此連接外部電力以驅動該電路板30與該工具機10，且該承載部22上更設有一對應該電源接頭32的凹陷部226。並請配合「圖4及圖5」所示，該第一接合板212與該第二接合板222設有構成定位關係的第一定位部213與第二定位部223，該第一定位部213與該第二定位部223分別為凸柱與穿孔，且該第一接合板212與該第二接合板222分別設有相應的定位孔215、225，以供螺絲等定位件穿設固定；該承載部22上凸設有支撐部221以支撐該電路板30，且該承載部22係接觸該電路板30的發熱源31，如電路板30上的晶片、IC等，藉此將電路板30發熱源31的熱量由該承載部22傳導至該散熱部21進行散熱，且本發明的實施例中，該散熱部21周圍更可增設複數間隔排列的散熱鰭片216，用以增加散熱面積，以提升散熱的效果與速度。The heat sink 20 includes a heat dissipating portion 21 mounted on the opening 13 of the power tool 10, and a carrying portion 22 connecting the heat sink 20 and extending to the accommodating space 12, as shown in FIG. An assembly space 211 is formed in the heat dissipation portion 21, and the heat dissipation portion 21 and the carrier portion 22 are respectively provided with a first joint plate 212 and a second joint plate 222. The second joint portion of the load portion 22 is accommodated. The first joint plate 212 and the second joint plate 222 are respectively provided with through holes 214 and 224 at a corresponding position to penetrate the first joint plate 212. The power connector 32 is connected to the external power to drive the circuit board 30 and the machine tool 10, and the carrying portion 22 is further provided with a pair of recesses 226 which should be the power connector 32. As shown in FIG. 4 and FIG. 5 , the first joint plate 212 and the second joint plate 222 are provided with a first positioning portion 213 and a second positioning portion 223 which form a positioning relationship, and the first positioning portion 213 . And the second positioning portion 223 is respectively a protrusion and a through hole, and the first joint plate 212 and the second joint plate 222 are respectively provided with corresponding positioning holes 215 and 225 for the positioning and fixing of screws and the like; A supporting portion 221 is protruded from the carrying portion 22 to support the circuit board 30, and the carrying portion 22 contacts the heat source 31 of the circuit board 30, such as a chip, an IC, etc. on the circuit board 30, thereby taking the circuit board 30 The heat of the heat source 31 is conducted to the heat dissipating portion 21 for heat dissipation. In the embodiment of the present invention, a plurality of heat dissipating fins 216 are arranged around the heat dissipating portion 21 for increasing the heat dissipating area. To improve the effect and speed of heat dissipation.
綜上所述，本發明主要是透過該散熱座20將該電路板30封閉於該工具機10的握把部11內，藉由該散熱座20具有一於該握把部11的散熱部21，以及一連接該散熱部21並承設該電路板30的承載部22，藉此將該電路板30的熱量由該承載部22傳導至該散熱部21而達到散熱，不但可有效降低該電路板30的溫度，使該電路板30可正常運作以驅動該工具機10，透過此技術方案，該工具機10的握把部11便不須另外開設供氣體流通的散熱孔，可避免工具機10運作時的粉塵由該握把部11侵入工具機10內部，造成該電路板30短路、損壞的問題。In summary, the present invention mainly encloses the circuit board 30 in the grip portion 11 of the machine tool 10 through the heat sink 20, and the heat sink 20 has a heat dissipating portion 21 on the grip portion 11. And a supporting portion 22 connecting the heat dissipating portion 21 and supporting the circuit board 30, thereby transferring heat of the circuit board 30 from the carrying portion 22 to the heat dissipating portion 21 to achieve heat dissipation, thereby effectively reducing the circuit The temperature of the board 30 enables the circuit board 30 to operate normally to drive the machine tool 10. With the technical solution, the grip portion 11 of the machine tool 10 does not need to provide a heat dissipation hole for gas circulation, thereby avoiding the machine tool. The dust during the operation of 10 is intruded into the inside of the machine tool 10 by the grip portion 11, causing a problem that the circuit board 30 is short-circuited and damaged.
上述僅為本發明的較佳實施例而已，並非用來限定本發明的實施範圍，即凡依本發明申請專利範圍的內容所為的等效變化與修飾，皆應為本發明的技術範疇。The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the equivalent variations and modifications of the scope of the present invention are intended to be within the technical scope of the present invention.
10．．．工具機10. . . Machine tool
11．．．握把部11. . . Grip
12．．．容置空間12. . . Housing space
13．．．開口13. . . Opening
20．．．散熱座20. . . Heat sink
21．．．散熱部twenty one. . . Heat sink
211．．．組裝空間211. . . Assembly space
212．．．第一接合板212. . . First joint plate
213．．．第一定位部213. . . First positioning part
214．．．通孔214. . . Through hole
215．．．定位孔215. . . Positioning hole
216．．．散熱鰭片216. . . Heat sink fin
22．．．承載部twenty two. . . Carrying part
221．．．支撐部221. . . Support
222．．．第二接合板222. . . Second joint plate
223．．．第二定位部223. . . Second positioning part
224．．．通孔224. . . Through hole
225．．．定位孔225. . . Positioning hole
226．．．凹陷部226. . . Depression
30．．．電路板30. . . Circuit board
31．．．發熱源31. . . Heat source
32．．．電源接頭32. . . Power connector
圖1，為本發明的外觀示意圖。Figure 1 is a schematic view of the appearance of the present invention.
圖2，為本發明的結構分解示意圖。Figure 2 is a schematic exploded view of the structure of the present invention.
圖3，為本發明散熱座的結構分解示意圖。FIG. 3 is a schematic exploded view of the heat sink of the present invention.
圖4，為本發明的剖面示意圖(一)。Figure 4 is a schematic cross-sectional view (I) of the present invention.
圖5，為本發明的剖面示意圖(二)。Figure 5 is a schematic cross-sectional view (2) of the present invention.
10．．．工具機10. . . Machine tool
11．．．握把部11. . . Grip
12．．．容置空間12. . . Housing space
13．．．開口13. . . Opening
20．．．散熱座20. . . Heat sink
21．．．散熱部twenty one. . . Heat sink
216．．．散熱鰭片216. . . Heat sink fin
22．．．承載部twenty two. . . Carrying part
30．．．電路板30. . . Circuit board
Claims (10)
一工具機，該工具機設有一握把部，該握把部內部形成一容置空間，且該容置空間容納有一電路板，並於一端形成一開口；
一散熱座，具有一裝設於該開口的散熱部，以及一連接該散熱部並延伸至該容置空間的承載部，該承載部係承設該電路板，並接觸該電路板的發熱源，以傳導熱量至該散熱部進行散熱。A thermally conductive structure of a machine tool comprising:
a machine tool, the machine tool is provided with a grip portion, the handle portion has an accommodating space therein, and the accommodating space receives a circuit board and forms an opening at one end thereof;
a heat sink having a heat dissipating portion mounted on the opening, and a bearing portion connecting the heat dissipating portion and extending to the receiving space, the bearing portion receiving the circuit board and contacting the heat source of the circuit board To dissipate heat to the heat dissipating portion for heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099129219A TWI453090B (en) | 2010-08-31 | 2010-08-31 | The thermal structure of the machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099129219A TWI453090B (en) | 2010-08-31 | 2010-08-31 | The thermal structure of the machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201208813A TW201208813A (en) | 2012-03-01 |
| TWI453090B true TWI453090B (en) | 2014-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW099129219A TWI453090B (en) | 2010-08-31 | 2010-08-31 | The thermal structure of the machine |
Country Status (1)
| Country | Link |
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| TW (1) | TWI453090B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6789630B2 (en) * | 2000-03-03 | 2004-09-14 | Skil Europe B.V. | Electric hand tool |
| TW200800523A (en) * | 2006-03-30 | 2008-01-01 | Max Co Ltd | Electric power tool |
| JP2008173716A (en) * | 2007-01-18 | 2008-07-31 | Max Co Ltd | Electric power tool having brushless motor |
| CN101636245A (en) * | 2007-03-21 | 2010-01-27 | Kwh米亚卡公司 | Compact electric grinding machine |
| CN201455943U (en) * | 2009-07-08 | 2010-05-12 | 德昌电机(深圳)有限公司 | Electric tool |
| TWM385659U (en) * | 2010-02-04 | 2010-08-01 | Forson Dev Co Ltd | Lamp with heat dissipation structure |
-
2010
- 2010-08-31 TW TW099129219A patent/TWI453090B/en active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6789630B2 (en) * | 2000-03-03 | 2004-09-14 | Skil Europe B.V. | Electric hand tool |
| TW200800523A (en) * | 2006-03-30 | 2008-01-01 | Max Co Ltd | Electric power tool |
| JP2008173716A (en) * | 2007-01-18 | 2008-07-31 | Max Co Ltd | Electric power tool having brushless motor |
| CN101636245A (en) * | 2007-03-21 | 2010-01-27 | Kwh米亚卡公司 | Compact electric grinding machine |
| US7699687B2 (en) * | 2007-03-21 | 2010-04-20 | Oy Kwh Mirka Ab | Compact electric sanding machine |
| CN201455943U (en) * | 2009-07-08 | 2010-05-12 | 德昌电机(深圳)有限公司 | Electric tool |
| TWM385659U (en) * | 2010-02-04 | 2010-08-01 | Forson Dev Co Ltd | Lamp with heat dissipation structure |
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| Publication number | Publication date |
|---|---|
| TW201208813A (en) | 2012-03-01 |
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