TWI487251B - A motor with a housing with a heat dissipation inner runner - Google Patents
A motor with a housing with a heat dissipation inner runner Download PDFInfo
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- TWI487251B TWI487251B TW101149916A TW101149916A TWI487251B TW I487251 B TWI487251 B TW I487251B TW 101149916 A TW101149916 A TW 101149916A TW 101149916 A TW101149916 A TW 101149916A TW I487251 B TWI487251 B TW I487251B
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Description
本發明係有關於一種電動機，特別是有關一種具不同管距的散熱內流道群組的外殼的電動機。BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an electric motor, and more particularly to an electric motor for an outer casing of a heat dissipating inner flow path group having different pipe pitches.
如圖1所示，電動機10在提供驅動電力後，可使軸11旋轉而產生扭力，並在將電能轉換為機械能時會產生熱能，該熱能以輻射或接觸方式傳遞到殼件12，因此，常見的電動機10散熱方式係以其殼件12接觸空氣而散熱，或在該殼件12上增設鰭片13，藉以增加散熱面積，或更進一步的改良方法係再增設一散熱風扇帶走該些鰭片上的熱量，將熱更快速地散逸至大氣中。As shown in FIG. 1, after the driving power is supplied, the motor 10 can rotate the shaft 11 to generate a torsion force, and generate heat energy when converting electrical energy into mechanical energy, which is radiated or contacted to the case member 12, thus The common heat dissipation method of the motor 10 is to dissipate heat by contacting the shell member 12 with air, or to add fins 13 to the shell member 12, thereby increasing the heat dissipation area, or a further improvement method is to add a heat dissipation fan to take away the The heat on the fins dissipates heat to the atmosphere more quickly.
惟，上述之主要以鰭片散熱的方式有其缺失，因該鰭片離熱源較遠，其熱傳導效果有限，且該殼件12所受的熱並不均勻，若無針對高受熱區域加強散熱能力，應用於高發熱的熱源散熱上相形見拙。However, the above is mainly due to the fin heat dissipation method, because the fin is far away from the heat source, the heat conduction effect is limited, and the heat received by the shell member 12 is not uniform, if the heat is not enhanced for the high heat receiving region. The ability to apply heat dissipation to high heat sources is dwarfed.
本發明目的在於提供一種在電動機殼體單元的不同受熱區域配置不同管距的散熱內流道組以應付不同熱能的傳遞效果。SUMMARY OF THE INVENTION It is an object of the present invention to provide a heat dissipation inner flow path group having different pipe pitches disposed in different heat receiving regions of a motor housing unit to cope with different heat energy transfer effects.
本發明所提供之具散熱內流道的外殼之電動機，包含：驅動單元、殼體單元，以及內流道組。驅動單元具有定子和與定子相互作用的轉子，殼體單元係以殼壁覆蓋驅動單元，殼壁至少包含第一受熱對應區和第二受熱對應 區。內流道組係嵌入殼壁中，其包括第一流道，第一流道沿管壁以平行於中心軸的相同管距，以連續正、反S形轉折繞設於第一受熱對應區，第一流道分別具有相連通的一入口端與一出口端。The motor provided with the outer casing for dissipating the inner flow passage of the present invention comprises: a driving unit, a housing unit, and an inner flow channel group. The driving unit has a stator and a rotor interacting with the stator, the housing unit covering the driving unit with the shell wall, the shell wall including at least the first heated corresponding region and the second heated corresponding Area. The inner flow channel group is embedded in the shell wall, and comprises a first flow channel, the first flow channel is arranged along the same pipe length parallel to the central axis along the pipe wall, and is continuously and reversely S-shaped and twisted around the first heat receiving corresponding region, The first-class lanes have an inlet end and an outlet end that are connected to each other.
在一實施例中，該第二受熱對應區的殼體厚度小於該第一受熱對應區的殼體。In an embodiment, the thickness of the second heat receiving corresponding region is smaller than the thickness of the first heat receiving corresponding region.
在一實施例中，該內流道組更包含一第二流道，該第二流道設置於該第二受熱對應區，其管距排列密度大於該第一流道的管距排列密度。In an embodiment, the inner flow channel group further includes a second flow channel disposed in the second heat receiving corresponding region, and the pipe spacing density is greater than the pipe spacing density of the first flow channel.
本發明在電動機外殼的殼體嵌入內流道，藉由編排內流道管線的分佈情形在殼體受熱溫度最高的區域設置較密的管距排列內流道組，使散熱效能提高，適合長時間運轉或在短時間內熱量激增的特性的電動機(馬達)散熱使用。進一步地，本案可在電動機殼體作不同的殼壁厚度變化，具有輕量化的潛力。The invention is embedded in the inner flow channel of the casing of the motor casing, and the inner flow channel group is arranged in a dense pipe pitch in the region where the heat receiving temperature of the casing is the highest in the distribution of the inner flow channel, so that the heat dissipation efficiency is improved, and the length is suitable for the long A motor (motor) that uses time or a sudden increase in heat in a short period of time is used for heat dissipation. Further, the present invention can have different wall thickness variations in the motor casing, and has the potential for weight reduction.
茲配合圖式說明本發明之實施例如下。The embodiment of the present invention will be described with reference to the drawings.
首先請參照圖2繪示的本發明具散熱內流道的外殼之電動機實施例的俯視圖、圖3繪示的本發明之殼體單元及內流道組分佈之立體圖以及圖4所繪示的圖2沿著4-4剖線之移轉剖面圖。本實施例中的具散熱內流道的外殼之電動機20包含有驅動單元21、遮蓋該驅動單元21的殼體單元22以及嵌入於殼體單元22的內流道組23。驅動單元21包含一產生磁場的定子211和與該定子211磁場產生相互 作用而轉動的一轉子212，該轉子212繞著一中心軸X轉動。殼體單元22係以殼壁221遮蓋在該驅動單元21的轉子212及定子211的外圍，該殼壁221可包括數個受熱對應區，如圖3所示為第一受熱對應區2211、第二受熱對應區2212、第三受熱對應區2213及第四受熱對應區2214並且上述受熱對應區內分別對應嵌設有第一流道231、第二流道232、第三流道233及第四流道234，而圖4所示該殼壁221為第一受熱對應區2211、第二受熱對應區2212之二個受熱對應區的實施例，且當該驅動單元21運轉產生熱量時，該第一受熱對應區2211所受的熱量大於該第二受熱對應區2212所受的熱量，較佳者，該第一受熱對應區2211為該殼壁受熱溫度最高者，但不以此為限。至少一嵌設在該殼壁221的內流道組23，其包括一第一流道231，第一流道231沿殼壁221圓周方向以平行於該中心軸X的相同管距P，以連續正、反S形(或U型)轉折繞設於該第一受熱對應區2211，該第一流道231分別具有相連通的一入口端2321與一出口端2322以提供注入該內流道組23內的流體A，由入口端2321到出口端2322循環流動。本實施例之驅動單元21的轉子212轉動時(可為由電能產生機械能，或由機械能轉換為電能)，驅動單元21產生的熱空氣H向高處移動，並集中由該殼壁221內部的第一受熱對應區2211，再加上該驅動單元21溫度上升產生的熱輻射平均地對該第一受熱對應區2211與第二受熱對應區2212加溫，在此條件下，經運轉後，該第一受熱對應區2211的受 熱溫度會高於該第二受熱對應區2212的受熱溫度，因此在該第一受熱對應區2211的第一流道231內注入流體A，並以外力推動該流體A循環於入口端2311至出口端2322後，即可對殼體單元22產生高效率的散熱作用。Referring first to FIG. 2, a top view of a motor embodiment of the outer casing with a heat dissipating inner flow path of the present invention, a perspective view of the housing unit and the inner flow path group distribution of the present invention illustrated in FIG. 3, and FIG. 4 Figure 2 is a cross-sectional view taken along line 4-4. The motor 20 having the outer casing for dissipating the inner flow passage in the present embodiment includes a drive unit 21, a housing unit 22 that covers the drive unit 21, and an inner flow path group 23 that is embedded in the housing unit 22. The driving unit 21 includes a stator 211 that generates a magnetic field and a magnetic field generated from the stator 211 A rotor 212 that rotates in action, the rotor 212 rotates about a central axis X. The housing unit 22 is covered by the shell wall 221 at the periphery of the rotor 212 and the stator 211 of the driving unit 21, and the shell wall 221 may include a plurality of heated corresponding regions, as shown in FIG. The second heat receiving corresponding area 2212, the third heat receiving corresponding area 2213, and the fourth heat receiving corresponding area 2214 are respectively embedded with the first flow path 231, the second flow path 232, the third flow path 233, and the fourth flow respectively in the heat receiving corresponding area. The 234, and the shell wall 221 shown in FIG. 4 is an embodiment of the two heated corresponding regions 2211 and the second heated corresponding regions 2212, and when the driving unit 21 operates to generate heat, the first The heat received by the corresponding area 2211 is greater than the heat received by the second heat receiving area 2212. Preferably, the first heat receiving area 2211 is the highest temperature of the shell wall, but is not limited thereto. At least one inner flow channel group 23 embedded in the casing wall 221 includes a first flow channel 231 which is continuous along the circumferential direction of the casing wall 221 at the same pipe pitch P parallel to the central axis X. The reverse S-shaped (or U-shaped) turn is disposed in the first heat receiving corresponding portion 2211. The first flow path 231 has an inlet end 2321 and an outlet end 2322 respectively connected to each other to provide injection into the inner flow group 23 The fluid A flows cyclically from the inlet end 2321 to the outlet end 2322. When the rotor 212 of the driving unit 21 of the present embodiment rotates (which may be mechanical energy generated by electric energy or converted into electric energy by mechanical energy), the hot air H generated by the driving unit 21 moves to a high position and is concentrated by the shell wall 221 The first heat receiving corresponding region 2211 in the interior, together with the heat radiation generated by the temperature rise of the driving unit 21, uniformly warms the first heat receiving corresponding region 2211 and the second heat receiving corresponding region 2212, under the condition that after the operation , the first heat receiving corresponding area 2211 The heat temperature is higher than the heating temperature of the second heat receiving corresponding region 2212, so that the fluid A is injected into the first flow channel 231 of the first heat receiving corresponding region 2211, and the fluid A is externally urged to circulate at the inlet end 2311 to the outlet end. After 2322, the housing unit 22 can be efficiently dissipated.
如圖5所繪示為本發明之具散熱內流道的外殼之電動機的殼體單元另一實施例的剖面圖。本實施例中與前述實施例所不同的是，該第二受熱對應區2212的殼壁厚度B’小於該第一受熱對應區的殼壁厚度B。另外，該第二受熱對應區2212的殼體厚度B’也可小於該內流道組23的管徑C。FIG. 5 is a cross-sectional view showing another embodiment of a housing unit of an electric motor having a housing for dissipating an inner flow passage of the present invention. In the present embodiment, unlike the foregoing embodiment, the thickness B' of the wall of the second heat receiving corresponding portion 2212 is smaller than the thickness B of the wall of the first heat receiving portion. Further, the casing thickness B' of the second heat receiving corresponding portion 2212 may be smaller than the pipe diameter C of the inner flow path group 23.
如圖6所繪示為本發明之具散熱內流道的外殼之電動機的內流道組另一實施例的剖面圖並同時參照圖8及圖9。本實施例中該內流道組23更包含一第二流道232，該第二流道232設置於該第二受熱對應區2212，其與該中心軸X平行的管距P’大於該第一流道231與該中心軸X平行的管距P。FIG. 6 is a cross-sectional view showing another embodiment of the inner flow path group of the motor having the outer casing for dissipating the inner flow passage of the present invention, and referring to FIGS. 8 and 9 simultaneously. In this embodiment, the inner flow channel group 23 further includes a second flow channel 232 disposed in the second heat receiving corresponding region 2212, and the pipe pitch P′ parallel to the central axis X is greater than the first The pipe pitch P of the first-class track 231 parallel to the central axis X.
請參照圖7之本發明之具散熱內流道的外殼之電動機的殼壁虛擬展開後的第一流道結合液體循環泵實施例的剖面圖，本實施例中，該第一流道231出口端2312與該第一流道231入口端2311係藉由一液體循環泵30相連，以使注入該內流道組23的流體A循環流動，藉以使流體A帶出該殼壁221的熱量。Referring to FIG. 7 , a cross-sectional view of a first flow channel combined with a liquid circulation pump after the virtual wall of the motor of the outer casing of the heat dissipation inner flow path of the present invention is combined. In this embodiment, the outlet end 2312 of the first flow path 231 The inlet end 2311 of the first flow path 231 is connected by a liquid circulation pump 30 to circulate the fluid A injected into the inner flow path group 23, so that the fluid A carries the heat of the case wall 221.
當然，如圖8所示之本發明之具散熱內流道的外殼之電動機的殼壁虛擬展開後的第一流道、第二流道結合同一 液體循環泵實施例的剖面圖，該第一流道231出口端2312連接該第二流道232入口端2321，該第二流道232出口端2322與該第一流道231入口端2311之間藉由一液體循環泵30相連，以使注入該內流道組23的流體A循環流動。Of course, the first flow path and the second flow path of the motor wall of the motor having the outer casing for dissipating the inner flow path of the present invention shown in FIG. A cross-sectional view of the embodiment of the liquid circulation pump, the outlet end 2312 of the first flow passage 231 is connected to the inlet end 2321 of the second flow passage 232, and the outlet end 2322 of the second flow passage 232 and the inlet end 2311 of the first flow passage 231 are A liquid circulation pump 30 is connected to circulate the fluid A injected into the inner flow path group 23.
再如圖9本發明之具散熱內流道的外殼之電動機的殼壁虛擬展開後的第一流道與第二流道分別結合了液體循環泵實施例的剖面圖，本實施例中的第一流道231出口端2312與該第一流道231入口端2311藉由一第一液體循環泵30a相連，該第二流道232出口端2322與該第二流道232入口端2321之間藉由一第二液體循環泵30b相連，以使注入該第一流道231的流體A循環流動、注入該第二流道232的流體A’循環流動。9 is a cross-sectional view of a liquid circulation pump embodiment in which the first flow path and the second flow path of the motor of the outer casing of the motor having the heat dissipation inner flow path are respectively combined, and the first flow in the embodiment The outlet end 2312 of the passage 231 is connected to the inlet end 2311 of the first flow passage 231 by a first liquid circulation pump 30a, and the outlet end 2322 of the second flow passage 232 and the inlet end 2321 of the second flow passage 232 are separated by a first The two liquid circulation pump 30b is connected such that the fluid A injected into the first flow path 231 circulates and the fluid A' injected into the second flow path 232 circulates.
當然，本實施例中的電動機可為一臥式馬達，該電動機20設有一底座40，該轉子係繞著一水平軸向的中心軸X轉動(如圖6所示)；另外，該殼體單元表面也可另外再結合有散熱鰭片24(如圖2所示)，以提熱交換能力。Of course, the motor in this embodiment may be a horizontal motor, and the motor 20 is provided with a base 40 that rotates about a horizontal axis central axis X (as shown in FIG. 6); The surface of the unit may also be additionally combined with heat sink fins 24 (shown in Figure 2) to enhance heat exchange capability.
綜上所述，本發明之特點在於在電動機殼體嵌入內流道，藉由在殼體受熱溫度最高的區域設置較密的管距排列內流道組，使散熱效能提高，適合長時間運轉或在短時間內熱量激增的特性的電動機散熱使用；進一步地，本案可在電動機殼體作不同的殼壁厚度變化，具有輕量化的潛力；再者，本發明也可在殼壁表面再結合散熱鰭片使用，故本發明非旦不會排斥既有的散熱手段，更可與之相輔相乘。In summary, the present invention is characterized in that the motor housing is embedded in the inner flow passage, and the inner flow passage group is arranged with a dense pipe pitch in the region where the heat receiving temperature of the casing is the highest, so that the heat dissipation performance is improved, and it is suitable for a long time. The heat dissipation of the motor running or the characteristic of heat surge in a short time; further, the present invention can make different wall thickness variations in the motor casing, and has the potential of weight reduction; further, the invention can also be on the surface of the casing wall. In combination with the heat dissipating fins, the present invention does not exclude the existing heat dissipating means, and can be complemented by the same.
前述本發明所採用的技術手段之實施方式或實施例，並非用來限定本創作專利實施之範圍。即凡與本發明專利申請範圍文義相符，或依本發明專利範圍所做的均等變化與修飾，皆為本發明專利範圍所涵蓋。The embodiments or examples of the technical means adopted by the present invention are not intended to limit the scope of implementation of the present patent. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.
10‧‧‧電動機10‧‧‧Electric motor
11‧‧‧軸11‧‧‧Axis
12‧‧‧殼件12‧‧‧Shell
13‧‧‧鰭片13‧‧‧Fins
20‧‧‧電動機20‧‧‧Electric motor
21‧‧‧驅動單元21‧‧‧ drive unit
211‧‧‧定子211‧‧‧ Stator
212‧‧‧轉子212‧‧‧Rotor
22‧‧‧殼體單元22‧‧‧Sheet unit
221‧‧‧殼壁221‧‧‧ shell wall
2211‧‧‧第一受熱對應區2211‧‧‧First heat-receiving area
2212‧‧‧第二受熱對應區2212‧‧‧second heat receiving area
2213‧‧‧第三受熱對應區2213‧‧‧Third heat receiving area
2214‧‧‧第四受熱對應區2214‧‧‧fourth heat receiving area
23‧‧‧內流道組23‧‧‧Inner runner group
231‧‧‧第一流道231‧‧‧First runner
2311‧‧‧入口端2311‧‧‧ entrance end
2312‧‧‧出口端2312‧‧‧Exit end
232‧‧‧第二流道232‧‧‧Second runner
2321‧‧‧入口端2321‧‧‧ entrance end
2322‧‧‧出口端2322‧‧‧export end
233‧‧‧第三流道233‧‧ Third channel
234‧‧‧第四流道234‧‧‧ fourth runner
24‧‧‧散熱鰭片24‧‧‧ Heat sink fins
30‧‧‧液體循環泵30‧‧‧Liquid circulation pump
30a‧‧‧第一液體循環泵30a‧‧‧First liquid circulation pump
30b‧‧‧第二液體循環泵30b‧‧‧Second liquid circulation pump
40‧‧‧底座40‧‧‧Base
A,A’‧‧‧流體A, A’‧‧‧ fluid
B,B’‧‧‧殼壁厚度B, B’‧‧‧ Shell wall thickness
C‧‧‧管徑C‧‧‧ pipe diameter
H‧‧‧熱空氣H‧‧‧hot air
P,P’‧‧‧管距P, P’‧‧‧ pipe spacing
X‧‧‧中心軸X‧‧‧ central axis
圖1為先前技術之電動機及其散熱鰭的立體圖。1 is a perspective view of a prior art motor and its heat sink fins.
圖2為本發明具散熱內流道的外殼之電動機實施例的俯視圖。2 is a top plan view of an embodiment of a motor with a housing that dissipates an inner flow passage of the present invention.
圖3為本發明之殼體單元及內流道組分佈之立體圖。3 is a perspective view showing the distribution of the housing unit and the inner flow path group of the present invention.
圖4為圖2沿著4-4剖線之移轉剖面圖。Figure 4 is a cross-sectional view of Figure 2 taken along line 4-4.
圖5為本發明之具散熱內流道的外殼之電動機的殼體單元另一實施例的剖面圖。Figure 5 is a cross-sectional view showing another embodiment of the housing unit of the motor having the outer casing for dissipating the inner flow passage of the present invention.
圖6為本發明之具散熱內流道的外殼之電動機的內流道組另一實施例的剖面圖。Figure 6 is a cross-sectional view showing another embodiment of the inner flow path group of the motor having the outer casing for dissipating the inner flow passage of the present invention.
圖7為本發明之具散熱內流道的外殼之電動機的殼壁虛擬展開後的第一流道結合液體循環泵實施例的剖面圖。Figure 7 is a cross-sectional view showing an embodiment of a first flow path combined with a liquid circulation pump after the virtual expansion of the shell wall of the motor having the outer casing for dissipating the inner flow passage of the present invention.
圖8為本發明之具散熱內流道的外殼之電動機的殼壁虛擬展開後的第一流道、第二流道結合同一液體循環泵實施例的剖面圖。Figure 8 is a cross-sectional view showing an embodiment of the first flow path and the second flow path of the motor of the motor having the outer casing for dissipating the inner flow passage in combination with the same liquid circulation pump.
圖9為本發明之具散熱內流道的外殼之電動機的殼壁虛擬展開後的第一流道與第二流道分別結合了液體循環泵實施例的剖面圖。Figure 9 is a cross-sectional view showing an embodiment of a liquid circulation pump in which a first flow path and a second flow path of a motor wall of a motor having a heat-dissipating inner flow path are virtually unfolded, respectively.
20‧‧‧電動機20‧‧‧Electric motor
21‧‧‧驅動單元21‧‧‧ drive unit
221‧‧‧殼壁221‧‧‧ shell wall
2211‧‧‧第一受熱對應區2211‧‧‧First heat-receiving area
2212‧‧‧第二受熱對應區2212‧‧‧second heat receiving area
231‧‧‧第一流道231‧‧‧First runner
B‧‧‧殼壁厚度B‧‧‧Shell wall thickness
C‧‧‧管徑C‧‧‧ pipe diameter
H‧‧‧熱空氣H‧‧‧hot air
X‧‧‧中心軸X‧‧‧ central axis
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101149916A TWI487251B (en) | 2012-12-25 | 2012-12-25 | A motor with a housing with a heat dissipation inner runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101149916A TWI487251B (en) | 2012-12-25 | 2012-12-25 | A motor with a housing with a heat dissipation inner runner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201427242A TW201427242A (en) | 2014-07-01 |
| TWI487251B true TWI487251B (en) | 2015-06-01 |
Family
ID=51725755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101149916A TWI487251B (en) | 2012-12-25 | 2012-12-25 | A motor with a housing with a heat dissipation inner runner |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI487251B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3399626A1 (en) | 2017-05-03 | 2018-11-07 | National Formosa University | Liquid-cooled cooling device with channel |
| CN108873808A (en) * | 2018-06-15 | 2018-11-23 | 博众精工科技股份有限公司 | Thermal error active compensation system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI697177B (en) * | 2018-06-20 | 2020-06-21 | 大銀微系統股份有限公司 | Cooling structure of rotary motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004036719A1 (en) * | 2002-10-18 | 2004-04-29 | Baumüller Nürnberg GmbH | Dipping varnish-coated cooling shell of a housing for an electric machine |
| TW200805861A (en) * | 2006-07-03 | 2008-01-16 | Joy Ride Technology Co Ltd | Airtight motor capable of dissipating heat |
| TW201025803A (en) * | 2008-12-24 | 2010-07-01 | Joy Ride Tech Co Ltd | Motor equipped with heat-exchange channel |
| TW201228196A (en) * | 2010-12-31 | 2012-07-01 | Ind Tech Res Inst | Cooling module and water-cooled motor system using the same |
-
2012
- 2012-12-25 TW TW101149916A patent/TWI487251B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004036719A1 (en) * | 2002-10-18 | 2004-04-29 | Baumüller Nürnberg GmbH | Dipping varnish-coated cooling shell of a housing for an electric machine |
| TW200805861A (en) * | 2006-07-03 | 2008-01-16 | Joy Ride Technology Co Ltd | Airtight motor capable of dissipating heat |
| TW201025803A (en) * | 2008-12-24 | 2010-07-01 | Joy Ride Tech Co Ltd | Motor equipped with heat-exchange channel |
| TW201228196A (en) * | 2010-12-31 | 2012-07-01 | Ind Tech Res Inst | Cooling module and water-cooled motor system using the same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3399626A1 (en) | 2017-05-03 | 2018-11-07 | National Formosa University | Liquid-cooled cooling device with channel |
| US10809020B2 (en) | 2017-05-03 | 2020-10-20 | Surpass World Technology Co., Ltd. | Liquid-cooled cooling device with grooves and a cover forming a channel |
| CN108873808A (en) * | 2018-06-15 | 2018-11-23 | 博众精工科技股份有限公司 | Thermal error active compensation system |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201427242A (en) | 2014-07-01 |
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