TWI407018B

TWI407018B - Flat miniature pump

Info

Publication number: TWI407018B
Application number: TW97150413A
Authority: TW
Inventors: Tsung Wen Huang; Win Yi Wu; Guo Jhih Yan; Wen Chieh Wu; Kuo Feng Chen; Yih Ru Jiang
Original assignee: Metal Ind Res & Dev Ct
Priority date: 2008-12-24
Filing date: 2008-12-24
Publication date: 2013-09-01
Also published as: TW201024551A

Abstract

This invention discloses a flat type micro pump, which includes a main body, a rotator, and a first stator. The main body includes a cover part and the main body of a base. The base is equipped with a spindle and is fixed on cover part with spindle sleeve. An anti-leaking device is equipped on the joining surface between the cover part and the base, and the interior of the main body forms a chamber and has an inlet end and an outlet end for connecting the chamber with the exterior of the main body. The rotator is installed in the chamber and includes a magnet set, blade wheel, and a bearing. The magnet set is embedded on the surface of the blade surface. Moreover, the magnet set and the blade wheel are positioned through the bearing that is fitted around spindle, and are coaxially rotating with respect to the spindle. The first stator includes a first coil set and a first magnetism conduction plate installed on the surface of the cover, and the first coil set is equipped on the cover part and axially corresponds to the magnet set.

Description

扁平式微型泵浦Flat micropump

本發明係有關於一種微型泵浦，特別是有關於一種將磁鐵整合於葉輪、線圈合於殼體之軸向磁通式的扁平式微型泵浦。The present invention relates to a micropump, and more particularly to a flat micropump that integrates a magnet into an impeller and an axial magnetic flux that is coupled to the housing.

習知離心式泵浦之架構係藉由定子上之線圈輸入電流而產生磁場，與轉子上之磁鐵產生磁力作用帶動葉輪旋轉進而使流體流動，依據泵浦之馬達設置方式可以概分為外掛式馬達泵浦與內插式馬達泵浦，其優缺點如下所述：請參照圖1A所繪示之先前技術之外掛式馬達泵浦。外掛式的馬達泵浦10係採用馬達12與泵浦本體分離式設計並藉由傳動軸傳遞動力，其流體13係由中心進入並經由轉動的葉輪11離心推出，其優點為組裝容易與不易洩漏，惟所需組合空間相對變大、傳動軸變長，故馬達12轉軸與葉輪11之軸對齊較為困難，如馬達12的轉軸與葉輪11之軸線未對齊，則將造成震動噪音並縮減其壽命。The structure of the conventional centrifugal pump generates a magnetic field by inputting a current from a coil on the stator, and generates a magnetic force with a magnet on the rotor to drive the impeller to rotate, thereby allowing the fluid to flow. The motor can be roughly classified according to the pump setting mode. The advantages and disadvantages of motor pumping and interpolating motor pumping are as follows: Please refer to the prior art external motor pumping shown in FIG. 1A. The external motor pump 10 series adopts the motor 12 and the pump body to be separated and designed to transmit power through the transmission shaft. The fluid 13 is introduced from the center and centrifugally pushed out through the rotating impeller 11 , and has the advantages of easy assembly and leakage. However, if the required combination space is relatively large and the transmission shaft becomes long, it is difficult to align the shaft of the motor 12 with the axis of the impeller 11. If the rotation shaft of the motor 12 is not aligned with the axis of the impeller 11, vibration noise is generated and the life is reduced. .

再請參照圖1B所繪示之先前技術之內插式馬達泵浦。內插式的馬達泵浦10係將馬達12嵌設於葉輪11之軸心位置處，馬達12直徑受限於葉片形狀，導致扭力輸出有所限制，若欲增加馬達12直徑則會壓縮葉片形狀，導致流體13之流量或壓力輸出受限。此外，由於馬達12侷限於葉輪11的軸心處，運轉時產生之熱量不易發散，容易造成馬達過熱而影響使用壽命。Referring again to the prior art interpolating motor pump illustrated in FIG. 1B. The interpolated motor pump 10 system embeds the motor 12 at the axial position of the impeller 11, and the diameter of the motor 12 is limited by the blade shape, resulting in a limitation of the torque output. If the diameter of the motor 12 is to be increased, the blade shape is compressed. This results in a limited flow or pressure output of the fluid 13. In addition, since the motor 12 is limited to the axial center of the impeller 11, the heat generated during operation is not easily dissipated, which may easily cause the motor to overheat and affect the service life.

本發明欲解決的問題係提供一種扁平式微型泵浦，並相對具有高輸出扭力、高流體出口壓力，並同時達成體積扁平微型化。The problem to be solved by the present invention is to provide a flat micropump with relatively high output torque, high fluid outlet pressure, and at the same time achieve volumetric miniaturization.

本發明解決上述問題之技術手段係提供一種扁平式微型泵浦。包含：一本體係包括一蓋部及一座部，座部設置一心軸，並以軸套固定心軸於蓋部，蓋部與座部間之結合面係具有一防漏裝置，本體內部係形成腔部，並具有一進口端與一出口端與腔部連通，以導通至本體外部。一轉子係設置於腔部內，轉子包含一磁鐵組、一葉輪及一軸承，磁鐵組嵌設於葉輪之一表面上，且磁鐵組與葉輪係藉由套設於心軸之軸承而定位，並對心軸作同軸旋轉。一第一定子包含設置於蓋部上之軸向之第一線圈組與一組設於該蓋部表面之一第一導磁板，第一線圈組係對應於磁鐵組並與磁鐵組產生一軸向磁場驅動葉輪旋轉，以將腔體內之流體從進口端輸送至出口端。The technical means for solving the above problems of the present invention provides a flat type micro pump. The utility model comprises: a system comprising a cover portion and a base portion, wherein the seat portion is provided with a mandrel, and the mandrel is fixed to the cover portion by a sleeve, and the joint surface between the cover portion and the seat portion has a leakage preventing device, and the internal body of the body is The cavity portion is formed and has an inlet end and an outlet end communicating with the cavity portion to be electrically connected to the outside of the body. a rotor system is disposed in the cavity portion, the rotor comprises a magnet group, an impeller and a bearing, the magnet group is embedded on a surface of the impeller, and the magnet group and the impeller are positioned by a bearing sleeved on the mandrel, and Coaxial rotation of the mandrel. a first stator includes an axial first coil set disposed on the cover portion and a set of first magnetic conductive plates disposed on a surface of the cover portion, the first coil set corresponding to the magnet set and generated by the magnet set An axial magnetic field drives the impeller to rotate to transport fluid from the inlet end to the outlet end.

本發明之特點係在於本發明之扁平式微型泵浦係採用軸向磁場設計，將磁鐵組整合於葉輪上，並使磁鐵組與線圈組呈軸向排列，因此本發明之扁平式微型泵浦的結構緊密，且外型輕薄短小。此外，由於磁鐵組配合渦流泵浦之葉形設計，具有較多空間可以加大馬達直徑，進而提高扭力與流體出口壓力，而且具有較大的散熱空間，可以降低馬達因過熱導致使用壽命縮短之問題。The invention is characterized in that the flat micropump of the invention adopts an axial magnetic field design, integrates the magnet group on the impeller, and arranges the magnet group and the coil group in the axial direction, so the flat micro pump of the invention The structure is compact and the appearance is light and thin. In addition, because the magnet group cooperates with the vortex pumping blade shape design, it has more space to increase the motor diameter, thereby increasing the torque and fluid outlet pressure, and has a larger heat dissipation space, which can reduce the service life of the motor due to overheating. problem.

茲配合圖式將本發明較佳實施例詳細說明如下。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail below with reference to the drawings.

首先請參照圖2所繪示本發明扁平式微型泵浦一組定子部實施例之立體分解圖、圖3所繪示圖2之底部視角之立體分解圖、圖4所繪示圖2之組合俯視圖，以及圖5所繪示圖4之5-5移轉剖視圖。本實施例中之扁平式微型泵浦係用以輸送一流體F，此流體F可為水冷式散熱系統中之冷卻液、燃料電池中使用之燃料或人工心臟所輸送之血液等。其扁平式微型泵浦包含：一本體20、一轉子30，以及一第一定子40。本體20係包含一蓋部21及一座部22，座部22設置一心軸221，心軸221並以軸套211固定於蓋部21，蓋部21與座部22間之一結合面係具有一防漏裝置，如本實施例中之O型防漏墊圈23並半嵌於蓋部21底面之定位槽，且本體20內部係形成一腔部24並具有一進口端241與一出口端242，用以連通腔部24與本體外部，且本體20係可利用複數個螺絲60拴緊固定蓋部21與座部22並壓縮O型防漏墊圈23以形成密封防漏狀態。First, please refer to FIG. 2 , which is a perspective exploded view of a set of stator portions of the flat micro-pump of the present invention, an exploded perspective view of the bottom view of FIG. 2 , and a combination of FIG. 2 . The top view, and the 5-5 shifting cross-sectional view of FIG. 4 are shown in FIG. The flat micropump in this embodiment is used to transport a fluid F, which may be a coolant in a water-cooled heat dissipation system, a fuel used in a fuel cell, or a blood delivered by an artificial heart. The flat micro pump includes a body 20, a rotor 30, and a first stator 40. The main body 20 includes a cover portion 21 and a base portion 22. The base portion 22 is provided with a spindle 221, and the spindle 221 is fixed to the cover portion 21 by a sleeve 211. The joint surface between the cover portion 21 and the seat portion 22 has a joint surface. The leakage preventing device, such as the O-type leakage preventing washer 23 in the embodiment, is half embedded in the positioning groove of the bottom surface of the cover portion 21, and a cavity portion 24 is formed inside the body 20 and has an inlet end 241 and an outlet end 242. The cavity portion 24 is connected to the outside of the body, and the body 20 can be used to tighten the cover portion 21 and the seat portion 22 by a plurality of screws 60 and compress the O-type leakage preventing washer 23 to form a sealed leakproof state.

轉子30，係設置於腔部24中，轉子30係包含一磁鐵組31、一葉輪32及一軸承33，磁鐵組31設置於葉輪32之一表面321上，其磁鐵組31係可為一環狀磁鐵，且固定於葉輪32之介於其外圓周之複數葉片與軸心之間的表面321上、或是在該表面321上設一環形凹陷區322並將該磁鐵組31固定於該環形凹陷區322內，且該磁鐵組31係可包含複數磁鐵而分別對應於第一定子40之第一線圈組41，磁鐵組31與葉輪32係藉由套設於心軸221之軸承33而定位，使該轉子30得以心軸221為軸心而自由旋轉。The rotor 30 is disposed in the cavity portion 24. The rotor 30 includes a magnet group 31, an impeller 32 and a bearing 33. The magnet group 31 is disposed on one surface 321 of the impeller 32, and the magnet group 31 can be a ring. a magnet, which is fixed to the surface 321 of the impeller 32 between the plurality of blades and the axial center of the outer circumference thereof, or an annular recessed portion 322 is formed on the surface 321 and the magnet group 31 is fixed to the ring In the recessed area 322, the magnet group 31 may include a plurality of magnets corresponding to the first coil group 41 of the first stator 40, and the magnet group 31 and the impeller 32 are respectively sleeved by the bearing 33 of the spindle 221 The positioning is such that the rotor 30 is free to rotate with the spindle 221 as the axis.

值得提出的是，上述之葉輪32外圓周之每一葉片可設有弧形導角，用以形成渦流而提高流體壓力。It is worth mentioning that each of the blades on the outer circumference of the impeller 32 may be provided with a curved guide angle for forming a vortex to increase the fluid pressure.

第一定子40係包含設置於蓋部21上之第一線圈組41與組設於蓋部21頂面之一第一導磁板42，第一線圈組41包含複數線圈(未圖式)，係軸向對應於磁鐵組31配置而成。The first stator 40 includes a first coil group 41 disposed on the cover portion 21 and a first magnetic conductive plate 42 disposed on a top surface of the cover portion 21. The first coil group 41 includes a plurality of coils (not shown). The axial direction corresponds to the arrangement of the magnet group 31.

上述實施例中，第一線圈組41係與磁鐵組31產生一軸向磁場驅動葉輪32旋轉，以將流體F從該進口端241輸送至出口端242。又，上述實施例中，腔部24之一外側壁與葉輪32外圓周葉片之間設置有一隔板243，且隔板243係介於進口端241與出口端242之間，在葉輪32轉動之後，隔板243與進口端241一側因轉動的葉輪32葉片將流體F抽離而形成一低壓區；而隔板243與出口端242一側則因轉動的葉輪32葉片將流體F加壓送入而形成一高壓區。當然，本實施例更可在腔部24外圍區域更環設一分別設於座部22與蓋部21之流道25，流道25具有較大的空間，供加壓之流體F匯集並快速地流動。In the above embodiment, the first coil set 41 and the magnet set 31 generate an axial magnetic field to drive the impeller 32 to rotate to transport the fluid F from the inlet end 241 to the outlet end 242. Moreover, in the above embodiment, a partition 243 is disposed between the outer side wall of one of the cavity portions 24 and the outer circumferential blade of the impeller 32, and the partition 243 is interposed between the inlet end 241 and the outlet end 242 after the impeller 32 is rotated. The partition 243 and the inlet end 241 side draw the fluid F away from the rotating impeller 32 blades to form a low pressure zone; and the partition 243 and the outlet end 242 side pressurize the fluid F by the rotating impeller 32 blades. Into a high pressure zone. Of course, in this embodiment, a flow channel 25 respectively disposed on the seat portion 22 and the cover portion 21 is further disposed in a peripheral region of the cavity portion 24. The flow channel 25 has a large space for the pressurized fluid F to be collected and quickly The ground flows.

上述實施例中，第一定子40之第一線圈組41係設置於蓋部21背對座部22之一蓋部頂面212上，其可利用印刷電路板技術製作，固定在蓋部頂面212上所設置之一凹部2121內，如圖5所示。In the above embodiment, the first coil group 41 of the first stator 40 is disposed on the top surface 212 of the cover portion 21 opposite to the cover portion 22, which can be fabricated by using a printed circuit board technology and fixed on the top of the cover portion. One of the recesses 2121 is provided on the face 212 as shown in FIG.

續請參照圖6所繪示之本發明扁平式微型泵浦一組定子部另一實施例之正剖面示意圖。本實施例中，第一定子40之第一線圈組41係可設置於蓋部21面對座部22之一蓋部底面213上，並利用一封膠層對第一線圈組41作密封，以避免與流體F接觸而短路。同樣地，第一定子40之第一線圈組41係可利用印刷電路板技術製作，在蓋部底面213設置凹部2131，而將第一線圈組41固定於凹部2131。Continuing to refer to FIG. 6, a schematic cross-sectional view of another embodiment of a set of stator portions of the flat micropump of the present invention is illustrated. In this embodiment, the first coil group 41 of the first stator 40 can be disposed on the bottom surface 213 of the cover portion facing the cover portion 21, and the first coil group 41 is sealed by a glue layer. To avoid short circuit in contact with fluid F. Similarly, the first coil group 41 of the first stator 40 can be fabricated by a printed circuit board technology, and a recess portion 2131 is provided on the bottom surface 213 of the lid portion to fix the first coil group 41 to the recess portion 2131.

請參照圖7所繪示之本發明扁平式微型泵浦二組定子部實施例之立體分解圖、圖8所繪示之圖7的組合俯視圖，以及圖9所繪示圖8之9-9移轉剖視圖。此實施例中，為提高對轉子的扭力，可在葉輪32相對於第一定子的另一側面，即於該座部22上再增設一第二定子50，該第二定子50包含設置於座部22之凹部2221內的第二線圈組51，與組設於座部22之背對於蓋部21之一座部底面222之一第二導磁板52，第二線圈組51包含複數線圈，係軸向對應於磁鐵組31佈置。Please refer to FIG. 7 for an exploded perspective view of the embodiment of the flat micropump two-group stator portion of the present invention, a combined top view of FIG. 7 illustrated in FIG. 8, and 9-9 of FIG. Move the section view. In this embodiment, in order to increase the torsion of the rotor, a second stator 50 may be further disposed on the other side of the impeller 32 relative to the first stator, that is, on the seat portion 22. The second stator 50 is disposed on the second stator 50. a second coil group 51 in the recess portion 2221 of the seat portion 22, and a second magnetic conductive plate 52 disposed on the bottom surface 222 of the seat portion 22 opposite to the seat portion 22, the second coil group 51 includes a plurality of coils. The axial direction corresponds to the arrangement of the magnet group 31.

請參照圖10所繪示之本發明扁平式微型泵浦二組定子部另一實施例之正剖面示意圖。此實施例中，第二定子50之第二線圈組51亦可設置於座部22之腔部24的底面，同樣可採直接成形並以一封膠層密封的方式或在腔部24之底面形成一凹部244，且該第二定子50之該第二線圈組51係固定於該凹部244內，並利用一封膠層對第二線圈組51作密封。Please refer to FIG. 10 for a schematic cross-sectional view of another embodiment of the flat micropumped two-group stator portion of the present invention. In this embodiment, the second coil assembly 51 of the second stator 50 can also be disposed on the bottom surface of the cavity portion 24 of the seat portion 22, and can also be directly formed and sealed in a glue layer or on the bottom surface of the cavity portion 24. A recess 244 is formed, and the second coil group 51 of the second stator 50 is fixed in the recess 244, and the second coil group 51 is sealed by a glue layer.

本發明之特點係提供一種採用軸向磁場設計之扁平式微型泵浦，將磁鐵組整合於葉輪上，並使磁鐵組與線圈組呈軸向排列，因此本發明之扁平式微型泵浦的結構緊密，且外型輕薄短小。此外，由於磁鐵組配合渦流泵浦之葉形設計，具有較多空間可以加大馬達直徑，進而提高轉動扭力與流體出口壓力，而且具有較大的散熱空間，可以降低馬達因過熱導致使用壽命縮短之問題。The invention provides a flat micro pump designed by using an axial magnetic field, the magnet group is integrated on the impeller, and the magnet group and the coil group are axially arranged, so the structure of the flat micro pump of the invention It is compact and its appearance is light and short. In addition, because the magnet group is matched with the vortex-pumped blade shape design, it has more space to increase the motor diameter, thereby increasing the rotational torque and the fluid outlet pressure, and has a larger heat dissipation space, which can reduce the service life of the motor due to overheating. The problem.

綜上所述，乃僅記載本發明為呈現解決問題所採用的技術手段之實施方式或實施例而已，並非用來限定本發明專利實施之範圍。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。In the above, it is merely described that the present invention is an embodiment or an embodiment of the technical means for solving the problem, and is not intended to limit the scope of implementation of the present invention. 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．．．馬達泵浦10. . . Motor pump

11．．．葉輪11. . . impeller

12．．．馬達12. . . motor

13．．．流體13. . . fluid

20．．．本體20. . . Ontology

21．．．蓋部twenty one. . . Cover

211．．．軸套211. . . Bushing

212．．．蓋部頂面212. . . Top of the cover

2121．．．凹部2121. . . Concave

213．．．蓋部底面213. . . Bottom of the cover

2131．．．凹部2131. . . Concave

214．．．定位槽214. . . Positioning slot

22．．．座部twenty two. . . Seat

221．．．心軸221. . . Mandrel

222．．．座部底面222. . . Underside of the seat

2221．．．凹部2221. . . Concave

23．．．O型防漏墊圈twenty three. . . O-type leakproof washer

24．．．腔部twenty four. . . Cavity

241．．．進口端241. . . Import side

242．．．出口端242. . . Exit end

243．．．隔板243. . . Partition

244．．．凹部244. . . Concave

25．．．流道25. . . Runner

30．．．轉子30. . . Rotor

31．．．磁鐵組31. . . Magnet group

32．．．葉輪32. . . impeller

321．．．表面321. . . surface

322．．．環形凹陷區322. . . Annular depression

33．．．軸承33. . . Bearing

40．．．第一定子40. . . First stator

41．．．第一線圈組41. . . First coil set

42．．．第一導磁板42. . . First magnetic plate

50．．．第二定子50. . . Second stator

51．．．第二線圈組51. . . Second coil set

52．．．第二導磁板52. . . Second magnetic conductive plate

60．．．螺絲60. . . Screw

F．．．流體F. . . fluid

圖1A繪示先前技術之外掛式馬達泵浦；Figure 1A illustrates a prior art external motor pump;

圖1B繪示先前技術之內插式馬達泵浦；Figure 1B illustrates a prior art interpolated motor pump;

圖2繪示本發明扁平式微型泵浦一組定子部實施例之立體分解圖；2 is a perspective exploded view of a set of stator portions of the flat micropump of the present invention;

圖3繪示圖2之底部視角之立體分解圖。3 is an exploded perspective view of the bottom view of FIG. 2.

圖4繪示圖2之組合俯視圖；4 is a combined plan view of FIG. 2;

圖5繪示圖4之5-5移轉剖視圖；Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4;

圖6繪示本發明扁平式微型泵浦一組定子部另一實施例之正剖面示意圖；6 is a schematic cross-sectional view showing another embodiment of a set of stator portions of the flat micro pump of the present invention;

圖7繪示本發明扁平式微型泵浦二組定子部實施例之立體分解圖；7 is a perspective exploded view of the embodiment of the flat micropump two sets of stators of the present invention;

圖8繪示圖7之組合俯視圖；Figure 8 is a top plan view of the combination of Figure 7;

圖9繪示圖8之9-9移轉剖視圖；以及Figure 9 is a cross-sectional view taken along line 9-9 of Figure 8;

圖10繪示本發明扁平式微型泵浦二組定子部另一實施例之正剖面示意圖。10 is a schematic cross-sectional view showing another embodiment of the flat micropumped two-group stator portion of the present invention.

20．．．本體20. . . Ontology

21．．．蓋部twenty one. . . Cover

211．．．軸套211. . . Bushing

212．．．蓋部頂面212. . . Top of the cover

2121．．．凹部2121. . . Concave

22．．．座部twenty two. . . Seat

221．．．心軸221. . . Mandrel

23．．．O型防漏墊圈twenty three. . . O-type leakproof washer

24．．．腔部twenty four. . . Cavity

241．．．進口端241. . . Import side

242．．．出口端242. . . Exit end

243．．．隔板243. . . Partition

25．．．流道25. . . Runner

30．．．轉子30. . . Rotor

31．．．磁鐵組31. . . Magnet group

32．．．葉輪32. . . impeller

321．．．表面321. . . surface

322．．．環形凹陷區322. . . Annular depression

33．．．軸承33. . . Bearing

40．．．第一定子40. . . First stator

41．．．第一線圈組41. . . First coil set

42．．．第一導磁板42. . . First magnetic plate

50．．．第二定子50. . . Second stator

51．．．第二線圈組51. . . Second coil set

52．．．第二導磁板52. . . Second magnetic conductive plate

60．．．螺絲60. . . Screw

F．．．流體F. . . fluid

Claims

一種扁平式微型泵浦，以輸送一流體，該扁平式微型泵浦包含：一本體，其係包含一蓋部及一座部，該座部設置一心軸，該心軸並以軸套固定於該蓋部，且該本體內部係形成一腔部並具有一進口端與一出口端，用以連通該腔部與本體外部；一轉子，係設置於該腔部，該轉子係包含一磁鐵組、一葉輪及一軸承，該磁鐵組係嵌設於該葉輪之一表面上，且該磁鐵組與該葉輪係藉由套設於該心軸之該軸承而定位，並以該心軸為軸心旋轉；一第一定子，係包含設置於該蓋部上之軸向對應於該磁鐵組之第一線圈組與一組設於該蓋部表面之一第一導磁板；以及一第二定子，該第二定子包含設置於該座部之軸向對應於該磁鐵組之第二線圈組，與組設於該座部之背對該蓋部之一座部底面之一第二導磁板，該第二線圈組係包含一印刷電路板及形成或設置於該印刷電路板上之複數線圈，該第二線圈組係固定於該座部底面形成之一凹部內或該第二線圈組係固定於該腔部之該底面形成的一凹部內，並利用一封膠層對該第二線圈組作密封；其中，該第一線圈組係與該磁鐵組產生一軸向磁場驅動該葉輪旋轉，以將該流體從該進口端輸送至該出口端，該腔部之一外側壁與該葉輪之間設置有一隔板，且該隔板係介於該進口端與該出口端之間以分隔出一高壓區及一低壓區，該腔部外圍區域更環設有一較大空間之流道，供加壓之流體快速流動。 A flat micro pump for conveying a fluid, the flat micro pump comprising: a body comprising a cover portion and a portion, the seat portion is provided with a mandrel, and the mandrel is fixed by the sleeve a cover portion, and the inside of the body forms a cavity portion and has an inlet end and an outlet end for communicating the cavity portion and the outside of the body; a rotor is disposed on the cavity portion, and the rotor system includes a magnet group An impeller and a bearing, the magnet group is embedded on a surface of the impeller, and the magnet group and the impeller are positioned by the bearing sleeved on the mandrel, and the mandrel is used as an axis a first stator comprising a first coil set disposed on the cover portion corresponding to the magnet group and a first magnetic guide plate disposed on a surface of the cover portion; and a first a second stator, the second stator includes a second coil set disposed in the axial direction of the seat portion corresponding to the magnet group, and a second magnetic conductive member disposed on the bottom surface of the seat portion of the cover portion a second coil assembly comprising a printed circuit board and formed or disposed on the printed circuit board a plurality of coils, wherein the second coil group is fixed in a recess formed in a bottom surface of the seat portion or the second coil group is fixed in a recess formed by the bottom surface of the cavity portion, and is The second coil assembly is sealed; wherein the first coil assembly and the magnet assembly generate an axial magnetic field to drive the impeller to rotate to transport the fluid from the inlet end to the outlet end, one of the outer sidewalls of the chamber a partition is disposed between the impeller, and The partition is disposed between the inlet end and the outlet end to separate a high pressure zone and a low pressure zone, and the peripheral zone of the cavity is further provided with a larger space flow passage for the pressurized fluid to flow rapidly.

如申請專利範圍第1項所述之扁平式微型泵浦，其中該蓋部與該座部間之一結合面係具有一防漏裝置。 The flat type micropump according to claim 1, wherein the sealing portion of the cover portion and the seat portion has a leakage preventing device.

如申請專利範圍第1項所述之扁平式微型泵浦，其中該葉輪外圓周之每一葉片具有弧形導角。 The flat micropump of claim 1, wherein each of the blades of the outer circumference of the impeller has a curved lead angle.

如申請專利範圍第1項所述之扁平式微型泵浦，其中該磁鐵組係為一環狀磁鐵，且該環狀磁鐵係固定於該葉輪之該表面上介於該葉輪外圓周之複數葉片與該軸心之間。 The flat micropump according to claim 1, wherein the magnet group is a ring magnet, and the ring magnet is fixed to the plurality of blades on the surface of the impeller on the outer circumference of the impeller. Between the axis and the axis.

如申請專利範圍第4項所述之扁平式微型泵浦，其中該葉輪之該表面上介於該葉輪外圓周之該等葉片與該軸心間具有一環形凹陷區，該環形凹陷區係對應於該環狀磁鐵，且該環狀磁鐵係固定於該環形凹陷區。 The flat micropump according to claim 4, wherein the surface of the impeller on the surface of the impeller has an annular recessed area between the vanes and the axial center, and the annular recessed area corresponds to The annular magnet is fixed to the annular recessed area.

如申請專利範圍第1項所述之扁平式微型泵浦，其中該磁鐵組係包含複數磁鐵，其係分別對應該第一定子之該第一線圈組。 The flat micropump of claim 1, wherein the magnet assembly comprises a plurality of magnets corresponding to the first coil set of the first stator.

如申請專利範圍第1項所述之扁平式微型泵浦，其中該第一定子之該第一線圈組係設置於該蓋部背對該座部之一蓋部頂面。 The flat micropump of claim 1, wherein the first coil set of the first stator is disposed on a top surface of the cover portion opposite to a cover portion of the seat portion.

如申請專利範圍第7項所述之扁平式微型泵浦，其中該第一定子之該第一線圈組係利用印刷電路板技術直接形成於該蓋部頂面上。 The flat micropump of claim 7, wherein the first coil set of the first stator is directly formed on a top surface of the cover by using printed circuit board technology.

如申請專利範圍第7項所述之扁平式微型泵浦，其中該第一定子之該第一線圈組係包含一印刷電路板及形成於該印刷電路板上之複數線圈，該蓋部背對該座部之一蓋部頂面形成一凹部，且該第一定子之該第一線圈組係固定於該凹部內。 The flat micropump of claim 7, wherein the first coil set of the first stator comprises a printed circuit board and a plurality of coils formed on the printed circuit board, the cover back A recess is formed on a top surface of the cover portion of the seat portion, and the first coil group of the first stator is fixed in the recess portion.

如申請專利範圍第1項所述之扁平式微型泵浦，其中該第一定子之該第一線圈組係設置於該蓋部面對該座部之一蓋部底面，並利用一封膠層對該第一線圈組作密封。 The flat micropump of the first aspect of the invention, wherein the first coil set of the first stator is disposed on a bottom surface of the cover portion facing the cover portion, and uses a glue The layer seals the first coil set.

如申請專利範圍第10項所述之扁平式微型泵浦，其中該第一定子之該第一線圈組係包含一印刷電路板及形成於該印刷電路板上之複數線圈，該蓋部底面形成一凹部，該凹部係與該腔部連通，且該第一定子之該第一線圈組係固定於該凹部內。 The flat micropump of claim 10, wherein the first coil set of the first stator comprises a printed circuit board and a plurality of coils formed on the printed circuit board, the bottom surface of the cover A recess is formed, the recess is in communication with the cavity, and the first coil set of the first stator is fixed in the recess.