TWI802391B - grinding machine - Google Patents
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- TWI802391B TWI802391B TW111116431A TW111116431A TWI802391B TW I802391 B TWI802391 B TW I802391B TW 111116431 A TW111116431 A TW 111116431A TW 111116431 A TW111116431 A TW 111116431A TW I802391 B TWI802391 B TW I802391B
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Abstract
一種研磨工具機，包含一機殼、一設於該機殼內的驅動組件及一導流結構。該機殼成形至少一入氣口及至少一第一出氣口，該驅動組件包含一馬達及一與該馬達同步轉動的風流產生件，該馬達具有一馬達外罩，該風流產生件位於該馬達未連接一研磨件一端。該馬達外罩具有至少一第一開口，及至少一連通該馬達內部的第二開口。該導流結構設於該機殼與該馬達外罩其中一者，該導流結構令該研磨工具機具有一第一氣流路徑，該第一氣流路徑依序為該入氣口，該第一開口，該馬達內部，該第二開口，該風流產生件及該第一出氣口。A grinding tool machine includes a casing, a driving assembly and a flow guiding structure arranged in the casing. The casing is formed with at least one air inlet and at least one first air outlet. The drive assembly includes a motor and an airflow generator that rotates synchronously with the motor. The motor has a motor cover. One end of the abrasive piece. The motor housing has at least one first opening and at least one second opening communicating with the inside of the motor. The air guide structure is arranged on one of the casing and the motor cover, and the air guide structure makes the grinding tool machine have a first air flow path, the first air flow path is the air inlet, the first opening, The inside of the motor, the second opening, the wind flow generator and the first air outlet.
Description
本發明涉及一種研磨工具機，尤指一種令散熱氣流進入馬達內部並對機殼抓握部分提供散熱的研磨工具機。 The invention relates to a grinding tool machine, in particular to a grinding tool machine which allows heat dissipation airflow to enter the interior of the motor and provides heat dissipation to the grasping part of the casing.
現有研磨工具機雖多配有與馬達連動的一風流產生件，期透過該風流產生件來對工作中的該研磨工具機進行散熱。前述就如CN101636245B所揭，該案研磨工具機的設計，是令該風流產生件設置在該馬達與一研磨件之間，使該風流產生件主要目的不是散熱，而以排塵為主，散熱只是附加作用，該風流產生件作用時，設置在握把處的開口將可作為進氣口並於該研磨工具機殼內產生風流，風流經過馬達外部，最後於該機殼面對朝該研磨件的部分排出。如此設計的風流路徑過長，降低散熱的效果有限。再者，現今研磨工具機整體設計為提升使用者抓握的使用體驗，均採好抓握的結構進行設計，導致該研磨工作機的殼內散熱問題更為顯著。如該研磨工具機採用前述風流產生件的配置實施，殼內溫度將因馬達運轉過程中產生的熱，而明顯溫升，殼表溫度亦隨殼內溫升而明顯升高，殼表明顯升溫將令使用者掌心感受明顯，而不利使用體驗。 Although most of the existing grinding machine tools are equipped with an airflow generating part linked with the motor, it is expected to dissipate heat from the grinding machine tool in operation through the airflow generating part. As mentioned above, as disclosed in CN101636245B, the design of the grinding tool machine in this case is to make the air flow generating part be arranged between the motor and a grinding part, so that the main purpose of the air flow generating part is not to dissipate heat, but to discharge dust and dissipate heat. It is just an additional effect, when the air flow generator works, the opening arranged at the handle will serve as an air inlet and generate air flow in the casing of the grinding tool, the air flow passes through the outside of the motor, and finally faces the grinding piece on the casing part of the discharge. The airflow path designed in this way is too long, and the effect of reducing heat dissipation is limited. Furthermore, the overall design of the current grinding machine tool is to enhance the user's grasping experience, and all of them are designed with a good grasping structure, which leads to more significant heat dissipation problems in the shell of the grinding machine. If the grinding tool machine is implemented with the configuration of the aforementioned air flow generating parts, the temperature inside the shell will rise significantly due to the heat generated during the operation of the motor, and the temperature of the shell surface will also increase significantly with the temperature rise inside the shell, and the shell surface will heat up significantly. It will make the user's palm feel obvious, which is not conducive to the user experience.
為解決前述研磨工具機內部散熱不易的問題，US 7270598公開研磨工具機引外部空氣對進入研磨工具機內部進行散熱的技術方案。該案藉由吸塵管吸取研磨所產生的含塵氣體時令工具機內部的氣體壓力產生變化，使外部空氣得以由進氣口進入工具機內部再進入該吸塵管，外部空氣朝該吸塵管方向流動過程中行經該馬達並對該馬達進行散熱。然而，US 7270598所揭結構無法應用於以抓握方式實施的研磨工具機，其因在於，該進氣口位置是在機殼頂端，如 採用此種設計，使用者抓握的同時將阻擋該進氣口，導致該進氣口的進氣效果不佳，對該馬達散熱的效果隨之降低。 In order to solve the aforementioned problem of difficult heat dissipation inside the grinding tool machine, US 7270598 discloses a technical solution in which the grinding tool machine introduces external air to the inside of the grinding tool machine to dissipate heat. In this case, when the dust-containing gas generated by the grinding is sucked by the vacuum pipe, the gas pressure inside the machine tool changes, so that the external air can enter the interior of the machine tool from the air inlet and then enter the vacuum pipe. The external air is directed towards the vacuum pipe. Flow passes through the motor and dissipates heat from the motor. However, the disclosed structure of US 7270598 cannot be applied to the grinding tool machine implemented in a grasping manner, because the position of the air inlet is at the top of the casing, such as With this design, the user will block the air inlet while holding it, resulting in poor air intake effect of the air inlet, and consequently reduced cooling effect on the motor.
此外，本案申請人專利TW I751912雖分別揭露可降低殼內溫度的技術方案，但風流的入風處是該機殼的一身部，風流出口是在該機殼的一頭部，該風流產生件則是設於靠近風流出口的問題，如此設置將導致風流路徑過長，導致熱效果有限。此外，該案亦未針對該馬達內部進行散熱，導致該馬達內部廢熱積存的問題仍然明顯。 In addition, although the applicant's patent TW I751912 in this case discloses the technical solutions that can reduce the temperature inside the casing, the air inlet is a part of the casing, and the airflow outlet is at a head of the casing. The problem is that it is located close to the air flow outlet. Such a setting will cause the air flow path to be too long, resulting in limited thermal effect. In addition, the case did not focus on the internal heat dissipation of the motor, and the problem of waste heat accumulation inside the motor is still obvious.
本發明的主要目的，在於解決習用握持式研磨工具機不具備對馬達內部進行散熱導致機殼溫升明顯的問題。 The main purpose of the present invention is to solve the problem that the conventional hand-held grinding tool machine does not have the ability to dissipate heat inside the motor, resulting in a significant temperature rise of the casing.
本發明的次要目的，在於解決習用握持式研磨工具機散熱風流路徑過長導致機殼溫升依然明顯的問題。 The secondary purpose of the present invention is to solve the problem that the temperature rise of the casing is still obvious due to the long heat dissipation air flow path of the conventional grip grinding machine tool.
為達上述目的，本發明提供一種研磨工具機，包含一機殼，一驅動組件，及一導流結構。該機殼提供抓握方式操作，該機殼成形至少一入氣口及至少一第一出氣口。該驅動組件裝於該機殼內，該驅動組件包含一馬達及一與該馬達同步轉動的風流產生件，該馬達具有一定子，一轉子，一組接該轉子的輸出軸，及一環該定子及該轉子設置的馬達外罩，該輸出軸具有一面向該機殼並組接該風流產生件的第一端，及一組接一研磨件的第二端，該馬達外罩具有至少一與該入氣口產生通氣關係的第一開口，及至少一連通該馬達內部並面向該風流產生件的第二開口。該導流結構設於該機殼與該馬達外罩其中一者，該導流結構令該研磨工具機具有一第一氣流路徑，該第一氣流路徑依序為該入氣口，該第一開口，該馬達內部，該第二開口，該風流產生件及該第一出氣口。 To achieve the above purpose, the present invention provides a grinding machine tool, which includes a casing, a driving assembly, and a flow guiding structure. The casing provides gripping operation, and the casing is formed with at least one air inlet and at least one first air outlet. The driving assembly is installed in the casing, and the driving assembly includes a motor and an air flow generator that rotates synchronously with the motor. The motor has a stator, a rotor, an output shaft connected to the rotor, and a ring around the stator. And the motor cover provided by the rotor, the output shaft has a first end facing the casing and assembled with the wind flow generating element, and a second end connected with a grinding element, the motor outer cover has at least one with the input The air port forms a first opening in a ventilation relationship, and at least one second opening communicating with the inside of the motor and facing the wind flow generating element. The air guide structure is arranged on one of the casing and the motor cover, and the air guide structure makes the grinding tool machine have a first air flow path, the first air flow path is the air inlet, the first opening, The inside of the motor, the second opening, the wind flow generator and the first air outlet.
一實施例中，該導流結構設於該機殼內並介於該第一出氣口與該入氣口之間。 In one embodiment, the air guide structure is disposed in the housing and between the first air outlet and the air inlet.
一實施例中，該導流結構為一成形於該馬達外罩上並於該馬達外罩組裝後接觸該機殼內壁的擋板。 In one embodiment, the air guiding structure is a baffle plate formed on the motor housing and contacting the inner wall of the casing after the motor housing is assembled.
一實施例中，該機殼內區分為一馬達空間及一與該馬達空間分隔的研磨空間，該第一氣流路徑僅作用於該馬達空間。 In one embodiment, the inner area of the casing is divided into a motor space and a grinding space separated from the motor space, and the first airflow path only acts on the motor space.
一實施例中，該機殼區分一提供抓握的頭部及一身部，該機殼由至少二殼件組成，該馬達外罩與該二殼件的其中之一連接。 In one embodiment, the casing is divided into a head for gripping and a body. The casing is composed of at least two shell parts, and the motor cover is connected to one of the two shell parts.
一實施例中，該馬達外罩具有一成形於該馬達外罩底緣與該機殼內壁接觸的凸肋，該凸肋令該機殼內區分為該馬達空間及該研磨空間。 In one embodiment, the motor housing has a protruding rib formed on the bottom edge of the motor housing in contact with the inner wall of the housing, and the rib divides the inner area of the housing into the motor space and the grinding space.
一實施例中，該馬達具有一裝於該馬達外罩未形成該第二開口一端的端板，該端板提供該定子固設於上。 In one embodiment, the motor has an end plate mounted on an end of the motor housing not forming the second opening, and the end plate provides the stator to be fixed thereon.
一實施例中，該機殼區分一提供抓握的頭部及一身部，該機殼具有一組裝於該身部的操作壓板，及至少一第二出氣口，該研磨工具機包含一設於該機殼內並位於該頭部與該身部交界的導流件，該導流件令該研磨工具機界定出一第二氣流路徑，該第二氣流路徑依序為該入氣口，該第一開口，該馬達內部，該第二開口，該風流產生件及該第二出氣口。 In one embodiment, the casing is divided into a head for gripping and a body, the casing has an operating pressure plate assembled on the body, and at least one second air outlet, and the grinding tool machine includes a The deflector in the casing and located at the junction of the head and the body, the deflector makes the grinding tool machine define a second airflow path, the second airflow path is the air inlet in turn, the first airflow path An opening, the inside of the motor, the second opening, the wind flow generator and the second air outlet.
一實施例中，該導流件具有一面向該身部的引流部，該引流部包含一主引導面及二分別接連該主引導面兩側的輔助引導面。 In one embodiment, the air guiding element has a water guiding part facing the body, and the water guiding part includes a main guiding surface and two auxiliary guiding surfaces respectively connected to two sides of the main guiding surface.
一實施例中，該輔助引導面是由複數曲面構成。 In one embodiment, the auxiliary guiding surface is composed of complex curved surfaces.
一實施例中，該導流件為一弧形，該導流件具有二分別設於該導流件二末端的止流塊。 In one embodiment, the air guiding element is arc-shaped, and the air guiding element has two stop blocks respectively arranged at two ends of the air guiding element.
一實施例中，該第一出氣口於該機殼上的水平高度高於該入氣口於該機殼上的水平高度。 In one embodiment, the horizontal height of the first air outlet on the casing is higher than the horizontal height of the air inlet on the casing.
一實施例中，該機殼具有至少一設於該入氣口的濾塵件。 In one embodiment, the casing has at least one dust filter disposed on the air inlet.
一實施例中，該風流產生件為一離心扇。 In one embodiment, the air flow generator is a centrifugal fan.
透過本發明前述實施，相較於習用具有以下特點：本發明透過導流結構，該機殼上的該入氣口及該第一出氣口，以及該馬達外罩上的該第一開口與該第二開口，令該研磨工具機內部產生該第一氣流路徑，該第一氣流路徑流經該馬達內部，具體解決該馬達及該機殼表面的溫升劇烈的問題，避免使用者掌心感受明顯溫升。除此之外，本發明該第一氣流路徑短於習用，更能增加散熱效果。 Through the aforementioned implementation of the present invention, it has the following characteristics compared with the conventional ones: the present invention has the following characteristics through the air guide structure, the air inlet and the first air outlet on the casing, and the first opening and the second air outlet on the motor cover. Openings allow the first airflow path to be generated inside the grinding machine tool, and the first airflow path flows through the inside of the motor, specifically solving the problem of severe temperature rise on the surface of the motor and the casing, and avoiding the obvious temperature rise in the palm of the user . In addition, the first airflow path of the present invention is shorter than conventional ones, which can further increase the cooling effect.
20:研磨工具機 20: Grinding machine tools
21:機殼 21: Chassis
211:入氣口 211: air inlet
212:第一出氣口 212: The first air outlet
213:馬達空間 213: Motor space
214:研磨空間 214: grinding space
215:頭部 215: head
216:身部 216: body
217:操作壓板 217: Operating platen
218:第二出氣口 218: Second air outlet
219:殼件 219: shell
22:驅動組件 22: Drive components
221:馬達 221: motor
222:風流產生件 222: wind current generator
223:定子 223: Stator
224:轉子 224: rotor
225:輸出軸 225: output shaft
226:馬達外罩 226: motor cover
227:第一端 227: first end
228:第二端 228: second end
229:第一開口 229: First opening
230:第二開口 230: second opening
231:凸肋 231: convex rib
232:端板 232: end plate
233:氣密支撐環 233: airtight support ring
234:通孔 234: through hole
235:電線 235: wire
236:扇葉 236: fan blade
237:環板 237: ring plate
238:連接環 238: Connecting ring
239:線圈 239: Coil
24:導流結構 24: diversion structure
241:擋板 241: Baffle
242:軟性阻氣件 242: Soft air barrier
25:研磨件 25: Grinding parts
26:電路板 26: circuit board
27:導流件 27: deflector
271:引流部 271: drainage department
272:主引導面 272: Main guide surface
273:輔助引導面 273: Auxiliary guide surface
274:止流塊 274: stop block
275:過線缺口 275: Over the line gap
30:第一氣流路徑 30: The first airflow path
31:第二氣流路徑 31: Second airflow path
32:氣流 32: Airflow
圖1，本發明研磨工具機一實施例結構示意圖。 Fig. 1 is a schematic structural diagram of an embodiment of the grinding machine tool of the present invention.
圖2，本發明研磨工具機一實施例局部結構示意圖。 Fig. 2 is a schematic diagram of a partial structure of an embodiment of the grinding machine tool of the present invention.
圖3，本發明研磨工具機一實施例結構分解示意圖。 Fig. 3 is a schematic diagram of an exploded structure of an embodiment of the grinding machine tool of the present invention.
圖4，本發明研磨工具機一實施例結構剖面示意圖。 Fig. 4 is a schematic cross-sectional view of the structure of an embodiment of the grinding machine tool of the present invention.
圖5，本發明研磨工具機一實施例局部結構剖面示意圖(一)。 Fig. 5 is a schematic cross-sectional view of a partial structure of an embodiment of the grinding machine tool of the present invention (1).
圖6，本發明研磨工具機一實施例局部結構剖面示意圖(二)。 Fig. 6 is a schematic cross-sectional view of a partial structure of an embodiment of the grinding machine tool of the present invention (2).
圖7，本發明研磨工具機一實施例局部風流路徑示意圖。 Fig. 7 is a schematic diagram of a partial wind flow path of an embodiment of the grinding machine tool of the present invention.
圖8，本發明研磨工具機另一實施例局部結構剖面示意圖。 Fig. 8 is a schematic cross-sectional view of a partial structure of another embodiment of the grinding machine tool of the present invention.
圖9，本發明研磨工具機一實施例導流件俯視示意圖。 Fig. 9 is a schematic top view of a deflector according to an embodiment of the grinding machine tool of the present invention.
本發明詳細說明及技術內容，茲配合圖式說明如下：
請參閱圖1至圖6，本發明提供一種研磨工具機20，該研磨工具機20包含一機殼21，一驅動組件22，及一導流結構24。其中，該機殼21提供使用者以抓握方式操作，使用者抓握該機殼21位置恰為該驅動組件22的相對上方，更具體來說，該使用者掌心是位於該驅動組件22的相對上方。該機殼21成形至少一入氣口211及一第一出氣口212，其中，該第一出氣口212於該機殼21上的水平高度高於該入氣口211於該機殼21上的水平高度，意味著該入氣口211將較靠近該研磨工具機20實施研磨作業的一工作面。未避免粉塵從該入氣口211進入，於一實施例中，該機殼21具有至少一設於該入氣口211的濾塵件，該濾塵件可以是濾網或過濾棉等不過度影響氣體流動者。再者，該第一出氣口212非設於該機殼21頂部，也就是說，使用者於抓握時不影響該第一出氣口212的排氣。
The detailed description and technical content of the present invention are described as follows in conjunction with the drawings:
Please refer to FIG. 1 to FIG. 6 , the present invention provides a grinding
又，該驅動組件22裝於該機殼21內，該驅動組件22包含一馬達221，及一與該馬達221同步轉動的風流產生件222。該馬達221具有一定子223，一轉子224，一組接該轉子224的輸出軸225，及一環該定子223及該轉子224設置的馬達外罩226。其中，該輸出軸225具有一第一端227，及一與該第一端227相對的第二端228，如以圖6所揭該研磨工具機20方向為例，該第一端227為該輸出軸225的頂端，該第二端228則為該輸出軸225的底端。該第一端227面向該機殼21內部並組接該風流產生件222，該第二端228則組接一研磨件25。由前述可知，該研磨件25如是位於該馬達221下方，該風流產生件222將位於該馬達221上方。又，該風流產生件222於該機殼21內的高度可與該第一出氣口212等高，或靠近該第一出氣口212的高度。該風流產生件222運轉時將產生軸向不同於該輸出軸225的氣流，該風流產生件222為一離心扇，該風流產生件222面向該第一出氣口212，該風流產生件222包含複數扇葉236，以及一提供該些扇葉236設置的環板237，該些扇葉236將排列形成一葉輪，該風流產生件222是從該些扇葉236中的任兩相鄰者之間出風。進一步地，該些扇葉236任兩相鄰者之間的距離非等距，而是從該環板237內緣朝該
環板237外緣漸擴。於該馬達221採外轉子設計時，該環板237可為該轉子224的一部分。此外，一實施例中，該風流產生件222包含一與該環板237分設該些扇葉236兩端的連接環238，該連接環238的大小非以等同該環板237為限制。又，該馬達外罩226具有至少一第一開口229，及至少一第二開口230，該第一開口229位於該馬達外罩226側邊，該第一開口229與該入氣口211形成通氣關係，進一步地，該第一開口229更可與該入氣口211直接面對。又，該第二開口230連通該馬達221內部，並且面對該風流產生件222。如以圖2至圖6所繪該研磨工具機20方向為例，該第二開口230是位於該馬達外罩226頂部。再者，本實施例該馬達221是採外轉子設計，該轉子224是設於該定子223外，該轉子224於面對該風流產生件222的一面上成形將至少一通孔234。
Moreover, the driving
承上，本發明該導流結構24設於以下位置其中之一：該機殼21內及該馬達外罩226。圖5所揭為該導流結構24設於該馬達外罩226上，圖8所揭則是導流結構24設置在該機殼21內。本文於後暫先以圖5所揭續作說明，但不以此為限制。併請參閱圖5及圖6，本發明該導流結構24用途在於令從該入氣口211進入氣流僅能通過該第一開口229，進入該馬達221內部。該導流結構24令該研磨工具機20具有一第一氣流路徑30，該第一氣流路徑30依序為該入氣口211，該第一開口229，該馬達221內部，該第二開口230，該風流產生件222，及該第一出氣口212。據此，該風流產生件222轉動時，由該入氣口211進入的氣流(如圖7所標示的32)將循該第一氣流路徑30移動，沿途對該馬達221內部進行散熱，即氣流(如圖7所標示的32)會對該馬達221內設置於該定子223或該轉子224上的複數線圈239進行散熱，以大幅降低該馬達221工作過程中積存的廢熱，使該機殼21提供使用者抓握的部分不會產生明顯升溫，使用者掌心不在因該機殼21明顯的溫升而產生操作過程中的不適。
In addition, the
復請參閱圖5，該導流結構24設於該馬達外罩226時，該導流結構24為一設於該馬達外罩226上的擋板241，該擋板241於組裝完成後將接觸該機殼21內壁，以阻礙該入氣口211與該第一出氣口212之間的直接連通。於圖5
所揭實施例中，該擋板241成形由該馬達外罩226頂緣延伸，但本發明不以此為限制。請再參閱圖8，於另一實施例中，該導流結構24設於該機殼21內時，該導流結構24將介於該第一出氣口212與該入氣口211之間，進一步地，該導流結構24非必須是由該機殼21一體成形，而可為設於該機殼21內的獨立部件，如軟性阻氣件242等可適應該機殼21內空間並產生阻氣效果者。再者，該機殼21內亦可具備用以組裝定位該導流結構24的結構，例如凸塊、榫等。
Referring again to Fig. 5, when the
復請參圖5及圖6，該機殼21內區分為一馬達空間213，及一與該馬達空間213分隔的研磨空間214，該第一氣流路徑30僅作用於該馬達空間213內。更具體來說，該馬達外罩226具有一成形於該馬達外罩226底緣並與該機殼21內壁接觸的凸肋231，透過該凸肋231分隔，該機殼21將可區分出該馬達空間213及該研磨空間214。一實施例中，該馬達221具有一裝於該馬達外罩226未形成該第二開口230一端的端板232，該端板232除提供該定子223固設於上之外，亦封閉該馬達外罩226原先開放的一端，令從該第一開口229進入的氣流僅能朝該第二開口230方向流動。一實施例中，該馬達221具有一可與該馬達外罩226組接以支撐該端板232的氣密支撐環233，該氣密支撐環233與該端板232可與該凸肋231配合，以將該機殼21內部區分出該馬達空間213與該研磨空間214，且要瞭解到本發明該馬達空間213與該研磨空間214是互不連通。
Referring back to FIGS. 5 and 6 , the
復請參圖4至圖6，該機殼21基於外型可區分出一提供抓握的頭部215，及一身部216。該機殼21更具有一組裝於該身部216的操作壓板217，及至少一第二出氣口218。另一方面，該研磨工具機20包含一電路板26及一導流件27，該電路板26與該導流件27均設於該機殼21內，該電路板26位在該身部216，並電性連接該馬達221，以控制該馬達221的工作。該導流件27則設於該頭部215與該身部216的交界，該導流件27將令該研磨工具機20內界定出一第二氣流路徑31，該第二氣流路徑31依序為該入氣口211，該第一開口229，該馬達221內部，該第二開口230，該風流產生件222及該第二出氣口
218。由前述可知，該第二氣流路徑31起點同為該入氣口211，並同樣經過該第一開口229，該馬達221內部，及該風流產生件222，而對該機殼21提供抓握的部分散熱，該第二氣流路徑31之後進入該身部216，使處在該身部216的該電路板26獲得散熱，最後從該第二出氣口218排出。復請參閱圖9，併承上述，一實施例中，該導流件27具有一引流部271，該引流部271令沿該第二氣流路徑31移動的氣流行經此處時被引導下降，朝該第二出氣口218移動。該引流部271包含一主引導面272及二分別接連該主引導面272兩側的輔助引導面273。進一步地，該輔助引導面273是由複數曲面構成。
Referring back to FIGS. 4 to 6 , the
復請參閱圖3及圖9，於一實施例中，該導流件27貼近該馬達外罩226邊緣設置，而可為一弧形。需注意地，該導流件27不遮蔽該第一開口229。又，該導流件27具有二分別設於該導流件27二末端的止流塊274，該止流塊274與該導流結構24協同作用，限制從該入氣口211進入的氣流僅能進入該第一開口229。復請參閱圖6及圖9，一實施例中，該導流件27更成形有一過線缺口275，該過線缺口275提供該馬達221的一電線235穿越其中而與該電路板26連接。
Referring again to FIG. 3 and FIG. 9 , in one embodiment, the
請參閱圖2，於一實施例中，該機殼21是由至少二殼件219組成，該馬達外罩226與該二殼件219的其中之一連接。更進一步地，該馬達外罩226更可與該二殼件219的其中之一一體成形
Please refer to FIG. 2 , in one embodiment, the
綜上述僅為本發明的一較佳實施例而已，當不能以此限定本發明實施範圍，即凡依本發明申請專利範圍所作的均等變化與修飾，皆應仍屬本發明專利涵蓋範圍。 In summary, the above is only a preferred embodiment of the present invention, and should not limit the implementation scope of the present invention, that is, all equivalent changes and modifications made according to the scope of the patent application of the present invention should still fall within the scope of the patent of the present invention.
211:入氣口 211: air inlet
212:第一出氣口 212: The first air outlet
213:馬達空間 213: Motor space
214:研磨空間 214: grinding space
215:頭部 215: head
217:操作壓板 217: Operating platen
218:第二出氣口 218: Second air outlet
22:驅動組件 22: Drive components
221:馬達 221: motor
222:風流產生件 222: wind current generator
223:定子 223: Stator
224:轉子 224: rotor
226:馬達外罩 226: motor cover
229:第一開口 229: First opening
230:第二開口 230: second opening
231:凸肋 231: convex rib
233:氣密支撐環 233: airtight support ring
24:導流結構 24: diversion structure
241:擋板 241: Baffle
25:研磨件 25: Grinding parts
26:電路板 26: circuit board
27:導流件 27: deflector
271:引流部 271: drainage department
272:主引導面 272: Main guide surface
273:輔助引導面 273: Auxiliary guide surface
274:止流塊 274: stop block
30:第一氣流路徑 30: The first airflow path
31:第二氣流路徑 31: Second airflow path
Claims (18)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111116431A TWI802391B (en) | 2022-04-29 | 2022-04-29 | grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111116431A TWI802391B (en) | 2022-04-29 | 2022-04-29 | grinding machine |
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| TWI802391B true TWI802391B (en) | 2023-05-11 |
| TW202342229A TW202342229A (en) | 2023-11-01 |
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|---|---|---|---|---|
| EP0671244A1 (en) * | 1994-02-28 | 1995-09-13 | Black & Decker Inc. | Random orbit sander having air directing baffle |
| JP3524971B2 (en) * | 1993-10-28 | 2004-05-10 | リョービ株式会社 | Random orbital sander |
| US6758731B2 (en) * | 2001-08-10 | 2004-07-06 | One World Technologies Limited | Orbital sander |
| TW201101654A (en) * | 2009-06-17 | 2011-01-01 | Bach Pangho Chen | Heat-dissipation structure of enclosed machine tool |
| TW201739573A (en) * | 2016-05-06 | 2017-11-16 | Jenn Feng New Energy Co Ltd | Grinding machine includes a housing having a gripping part that is arranged between the head part at which the driving device is located and the tail part at which the control device is located |
| CN107756202A (en) * | 2016-08-15 | 2018-03-06 | 苏州宝时得电动工具有限公司 | Sander |
| WO2020100423A1 (en) * | 2018-11-15 | 2020-05-22 | 株式会社マキタ | Portable grinding machine |
| TWI751912B (en) * | 2021-02-20 | 2022-01-01 | 鼎朋企業股份有限公司 | Grinding tool machine for reducing the hotness of the casing |
| TWI753530B (en) * | 2020-08-13 | 2022-01-21 | 鼎朋企業股份有限公司 | Electric Grinding Tool Machine |
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2022
- 2022-04-29 TW TW111116431A patent/TWI802391B/en active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3524971B2 (en) * | 1993-10-28 | 2004-05-10 | リョービ株式会社 | Random orbital sander |
| EP0671244A1 (en) * | 1994-02-28 | 1995-09-13 | Black & Decker Inc. | Random orbit sander having air directing baffle |
| US6758731B2 (en) * | 2001-08-10 | 2004-07-06 | One World Technologies Limited | Orbital sander |
| TW201101654A (en) * | 2009-06-17 | 2011-01-01 | Bach Pangho Chen | Heat-dissipation structure of enclosed machine tool |
| TW201739573A (en) * | 2016-05-06 | 2017-11-16 | Jenn Feng New Energy Co Ltd | Grinding machine includes a housing having a gripping part that is arranged between the head part at which the driving device is located and the tail part at which the control device is located |
| CN107756202A (en) * | 2016-08-15 | 2018-03-06 | 苏州宝时得电动工具有限公司 | Sander |
| WO2020100423A1 (en) * | 2018-11-15 | 2020-05-22 | 株式会社マキタ | Portable grinding machine |
| TWI753530B (en) * | 2020-08-13 | 2022-01-21 | 鼎朋企業股份有限公司 | Electric Grinding Tool Machine |
| TWI751912B (en) * | 2021-02-20 | 2022-01-01 | 鼎朋企業股份有限公司 | Grinding tool machine for reducing the hotness of the casing |
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|---|---|
| TW202342229A (en) | 2023-11-01 |
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