TWI410562B

TWI410562B - Pump

Info

Publication number: TWI410562B
Application number: TW96149350A
Authority: TW
Inventors: Cheng Tien Lai; Zhi-Yong Zhou; Qiao-Li Ding
Original assignee: Foxconn Tech Co Ltd
Priority date: 2007-12-21
Filing date: 2007-12-21
Publication date: 2013-10-01
Also published as: TW200928105A

Abstract

A pump for a liquid cooling system includes a case, an inner stator and an outer stator received in the case, and a rotor including a magnet sleeve sandwiched between the inner stator and the outer stator, wherein the inner stator and the outer stator are accommodated in a first chamber, which is separated from a second chamber where the rotor is received. The outer stator of the pump produces a magnetic field interacting with an exterior magnetic field generated by the magnet sleeve, thereby driving the magnet sleeve to rotate from outside of the magnet sleeve. The magnetic field generated by the magnet sleeve is capable of being used sufficiently, and an operating efficiency of the pump is enhanced accordingly.

Description

泵 Pump

本發明涉及一種泵，特別係指一種用於液冷式散熱系統之泵。 The present invention relates to a pump, and more particularly to a pump for a liquid cooled heat sink system.

一般帶有熱源之電子產品，均需要有散熱之系統，如設置於電腦內部之中央處理器(CPU)。由於中央處理器工作時會發熱，故必須於中央處理器上設置散熱裝置，以防止其發生過熱問題。 Generally, electronic products with heat sources require a system for dissipating heat, such as a central processing unit (CPU) installed inside the computer. Since the central processing unit generates heat during operation, a heat sink must be placed on the central processing unit to prevent overheating.

在習知之電腦CPU散熱裝置中，液冷式散熱系統有逐漸被廣泛應用之趨勢，為可使冷卻液于液冷式散熱系統內部產生循環，一般會設置一泵，以該泵對冷卻液產生推力，使冷卻液產生循環，從而使冷卻液帶走CPU之熱量。傳統之泵一般包括一殼體及容置於殼體內之一定子及一轉子。該轉子具有一環繞所述定子之磁體。該磁體所產生之穩恒磁場受定子所產生之交變磁場之作用而旋轉，從而帶動轉子擾動冷卻液，促使其流動。 In the conventional computer CPU heat sink, the liquid-cooled heat-dissipating system has been widely used. In order to make the coolant flow inside the liquid-cooled heat-dissipating system, a pump is generally provided to generate the coolant. The thrust causes the coolant to circulate, causing the coolant to carry away the heat of the CPU. A conventional pump generally includes a housing and a stator and a rotor housed in the housing. The rotor has a magnet that surrounds the stator. The stable magnetic field generated by the magnet is rotated by the alternating magnetic field generated by the stator, thereby causing the rotor to disturb the coolant and cause it to flow.

惟，該種傳統之泵之轉子僅圍繞一定子，其磁體僅能受自該定子所產生之交變磁場所驅動，換言之，該轉子之磁體所產生之穩恒磁場中僅有位於該磁體內側之部分可與定子所產生之交變磁場相互作用，而轉子之磁體所產生之穩恒磁場中位於磁體外側之部分則由於無相應之磁場驅動而處於閒置狀態，導致該部分磁場被浪費掉。由於泵之轉子轉速與磁場強度成一正比關係，該部分浪費掉之磁場將致使泵之轉子之磁能利用不充分，進而影響泵之工作效率。 However, the rotor of the conventional pump only surrounds a certain stator, and its magnet can only be driven by the alternating magnetic field generated by the stator. In other words, the stable magnetic field generated by the magnet of the rotor is only located in the magnet. The side part can be produced with the stator The alternating magnetic field interacts, and the portion of the steady magnetic field generated by the magnet of the rotor located outside the magnet is in an idle state due to the absence of a corresponding magnetic field, resulting in the partial magnetic field being wasted. Since the rotor speed of the pump is proportional to the strength of the magnetic field, the magnetic field that is wasted in this part will cause the magnetic energy of the rotor of the pump to be insufficiently utilized, thereby affecting the working efficiency of the pump.

有鑒於此，實有必要提供一種磁能利用率較高之泵，其具有雙定子之構造。 In view of this, it is necessary to provide a pump having a high magnetic energy utilization rate, which has a configuration of a double stator.

一種泵，用於液冷散熱系統，其包括一殼體及收容於殼體內之一轉子及一內定子，該轉子包括一環繞內定子之磁體，該泵還包括一環繞轉子之磁體之外定子，該外定子與內定子位於第一腔室內，該轉子位於與第一腔室隔開之第二腔室內。 A pump for a liquid cooling heat dissipation system includes a housing and a rotor housed in the housing and an inner stator, the rotor including a magnet surrounding the inner stator, the pump further including a stator surrounding the rotor The outer stator and the inner stator are located in a first chamber, and the rotor is located in a second chamber spaced apart from the first chamber.

與習知技術相比，本發明之泵還具有一外定子圍繞轉子之磁體，其產生之磁場可與轉子之磁體所產生之外部磁場相互作用，從而從轉子之磁體外側驅動轉子旋轉。由此，磁體所產生之磁場可得到充分利用，泵之工作效率亦相應地得到提升。 In contrast to conventional techniques, the pump of the present invention also has an outer stator surrounding the magnet of the rotor that produces a magnetic field that interacts with an external magnetic field generated by the magnet of the rotor to drive rotation of the rotor from the outside of the magnet of the rotor. Thereby, the magnetic field generated by the magnet can be fully utilized, and the working efficiency of the pump is correspondingly improved.

10‧‧‧底座 10‧‧‧Base

12‧‧‧開口 12‧‧‧ openings

14‧‧‧進水口 14‧‧‧ Inlet

140‧‧‧進水內孔 140‧‧‧Inlet hole

16‧‧‧出水口 16‧‧‧Water outlet

160‧‧‧出水內孔 160‧‧‧Water outlet

18‧‧‧凸條 18‧‧ ‧ ribs

20‧‧‧殼體 20‧‧‧shell

200‧‧‧缺口 200‧‧‧ gap

2000‧‧‧隔板 2000‧‧ ‧ partition

2002‧‧‧第一腔室 2002‧‧‧First Chamber

2004‧‧‧第二腔室 2004‧‧‧Second chamber

22‧‧‧內容置部 22‧‧‧Content Department

220‧‧‧軸管 220‧‧‧ shaft tube

24‧‧‧外容置部 24‧‧‧External Department

240‧‧‧側壁 240‧‧‧ side wall

26‧‧‧內凹部 26‧‧‧ Inside recess

28‧‧‧外凹部 28‧‧‧Outer recess

30‧‧‧轉子 30‧‧‧Rotor

32‧‧‧圓板 32‧‧‧ round plate

34‧‧‧葉片 34‧‧‧ blades

36‧‧‧輪轂 36‧‧·wheels

360‧‧‧磁體 360‧‧‧ magnet

362‧‧‧N極 362‧‧‧N pole

364‧‧‧S極 364‧‧‧S pole

38‧‧‧轉軸 38‧‧‧ shaft

40‧‧‧內定子 40‧‧‧ inner stator

42、52‧‧‧軛片 42, 52‧‧‧ yoke

44、54‧‧‧定位部 44, 54‧‧ ‧ Positioning Department

46、56‧‧‧線圈 46, 56‧‧‧ coil

50‧‧‧外定子 50‧‧‧Outer stator

60‧‧‧軸承 60‧‧‧ bearing

70‧‧‧墊片 70‧‧‧shims

700‧‧‧穿孔 700‧‧‧Perforation

80‧‧‧電路板 80‧‧‧ boards

82‧‧‧導線 82‧‧‧Wire

90‧‧‧蓋板 90‧‧‧ cover

圖1係本發明實施例之泵之組裝圖。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an assembled view of a pump in accordance with an embodiment of the present invention.

圖2係圖1中之分解圖。 Figure 2 is an exploded view of Figure 1.

圖3係圖1中之泵隱去電路板及蓋板之視圖。 Figure 3 is a view of the pump in Figure 1 with the circuit board and the cover hidden.

圖4係圖1之縱向剖面圖。 Figure 4 is a longitudinal sectional view of Figure 1.

圖5係圖1之工作原理圖。 Figure 5 is a schematic diagram of the operation of Figure 1.

圖6係本發明另一實施例之泵之工作原理圖。 Fig. 6 is a schematic view showing the operation of a pump according to another embodiment of the present invention.

如圖1-2所示，本發明之泵用於液冷散熱系統(圖未示)內而對電子元件(圖未示)散熱，其包括一底座10、一置於底座10內之墊片70、一固定於該底座10上之殼體20、一容置於該殼體20內之轉子30、一環繞該轉子30之外定子50、一被該轉子30所環繞之內定子40、一安裝於殼體20內且電性連接所述外定子50及內定子40之電路板80及一固定至殼體20上且覆蓋住電路板80之蓋板90。 As shown in FIG. 1-2, the pump of the present invention is used in a liquid cooling system (not shown) to dissipate heat from an electronic component (not shown), and includes a base 10 and a gasket placed in the base 10. 70. A housing 20 fixed to the base 10, a rotor 30 housed in the housing 20, a stator 50 surrounding the rotor 30, and an inner stator 40 surrounded by the rotor 30. The circuit board 80 is mounted in the housing 20 and electrically connected to the outer stator 50 and the inner stator 40 and a cover 90 fixed to the housing 20 and covering the circuit board 80.

所述底座10大致呈方形，其中部區域開設一直徑較大之圓形開口12，其四角區域分別向上形成四支腳(圖未標)，供螺絲(圖未示)穿設。所述開口12之內壁之中部水平向內凸伸出一環狀凸條18，用於架設墊片70，以將該開口12分隔成上下兩部分。一進水口14橫向形成於所述底座10之一側且連通該開口12之上部，其將工作流體(圖未示)穿過其進水內孔140輸入泵內；一出水口16橫向形成於所述底座10之一側且連通該開口12之下部，其將工作流體自泵穿過其出水內孔160內向外輸出。所述進水口14與出水口16形成於底座10之同側，且凸伸出底座10外。 The base 10 has a substantially square shape, and a circular opening 12 having a large diameter is formed in a middle portion thereof, and four corners of the four corners are respectively formed upward (not shown) for screwing (not shown). An annular rib 18 protrudes horizontally inwardly from the inner wall of the opening 12 for erecting the spacer 70 to divide the opening 12 into upper and lower portions. A water inlet 14 is laterally formed on one side of the base 10 and communicates with the upper portion of the opening 12, which feeds a working fluid (not shown) through the inlet hole 140 into the pump; a water outlet 16 is formed laterally One side of the base 10 and communicates with the lower portion of the opening 12, which discharges working fluid from the pump through its inner water outlet 160. The water inlet 14 and the water outlet 16 are formed on the same side of the base 10 and protrude from the outside of the base 10.

所述墊片70呈圓形，其中部開設一供工作流體穿過之圓形穿孔700。該墊片70抵靠於所述底座10之凸條18上，其將自進水口14流入開口12上部之工作流體與穿過其穿孔700而流至開口12下部之工作流體分開，避免二者相互干擾而產生紊流。 The spacer 70 has a circular shape with a circular through hole 700 through which a working fluid passes. The spacer 70 abuts against the ridge 18 of the base 10, which flows the working fluid flowing from the water inlet 14 into the upper portion of the opening 12 and through the through hole 700 thereof. The working fluid in the lower part of the opening 12 is separated to avoid mutual interference and turbulence.

請一併參閱圖4，所述殼體20呈方形，其通過螺絲固定於底座10上，其中部開設一圓形之通口(圖未標)。一隔板2000將該通口分隔出第一腔室2002及第二腔室2004。該第一腔室2002位於第二腔室2004上方，且二者互不相通，以防止工作流體自第二腔室2004滲入第一腔室2002。所述第一腔室2002之開口方向朝上，其包括一環形之內容置部22及一環繞該內容置部22之環形之外容置部24，其中所述內容置部22用於收容內定子40，外容置部24則用於收容外定子50。所述內容置部22圍設出一圓形之軸管220，所述內容置部22與外容置部24則共同圍設出一環狀之側壁240，所述側壁240及軸管220共同組成所述隔板2000之一部分。所述軸管220之高度略高於所述側壁240之高度，由此，當電路板80套設于軸管220並置於側壁240上時，其頂面將略低於所述軸管220之頂面(如圖4)。所述第二腔室2004之開口方向朝下，其包括一圓形之內凹部26及一環繞該內凹部26之環形之外凹部28(如圖4)，其中所述內凹部26及外凹部28分別用於***述轉子30之相應結構。所述內凹部26開設於所述軸管220內而環繞所述內容置部22，其使軸管220形成一中空之構造；所述外凹部28開設於所述側壁240內而位於所述內容置部22及外容置部24之間，其使側壁240亦形成一中空之構造。一缺口200開設於所述殼體20之一側，其與所述出水口160及進水口140相對應，供電路板80之導線82穿過。 Referring to FIG. 4 together, the housing 20 has a square shape, which is fixed to the base 10 by screws, and a circular opening is formed in the middle portion thereof (not shown). A separator 2000 separates the opening from the first chamber 2002 and the second chamber 2004. The first chamber 2002 is located above the second chamber 2004 and is not in communication with each other to prevent penetration of working fluid from the second chamber 2004 into the first chamber 2002. The opening direction of the first chamber 2002 faces upwards, and includes an annular content portion 22 and an annular outer receiving portion 24 surrounding the content portion 22, wherein the content portion 22 is used for receiving the inner portion The sub-fitting portion 24 is for receiving the outer stator 50. The content portion 22 encloses a circular shaft tube 220, and the content portion 22 and the outer receiving portion 24 together define an annular side wall 240, and the side wall 240 and the shaft tube 220 are common A portion of the partition 2000 is formed. The height of the shaft tube 220 is slightly higher than the height of the side wall 240. Therefore, when the circuit board 80 is sleeved on the shaft tube 220 and placed on the side wall 240, the top surface thereof will be slightly lower than the shaft tube 220. Top surface (Figure 4). The opening direction of the second chamber 2004 faces downward, and includes a circular inner recess 26 and an annular outer recess 28 (such as FIG. 4) surrounding the inner recess 26, wherein the inner recess 26 and the outer recess 28 is used to receive the corresponding structure of the rotor 30, respectively. The inner recessed portion 26 is defined in the shaft tube 220 to surround the content portion 22, and the shaft tube 220 is formed into a hollow structure; the outer concave portion 28 is defined in the side wall 240 to be located in the content Between the portion 22 and the outer receiving portion 24, the side wall 240 also forms a hollow structure. A notch 200 is formed on one side of the casing 20, and is connected to the water outlet 160 and the water inlet 140. Correspondingly, the wire 82 for the circuit board 80 passes through.

所述轉子30夾置於所述殼體20與底座10之間，其包括一葉輪組(圖未標)及自該葉輪組垂直向上延伸之一輪轂36及一轉軸38。所述葉輪組進一步包括一圓板32及複數結合至該圓板32底部之葉片34。該葉輪組收容於所述底座10之開口12之上部內(如圖4)，其通過葉片34之旋轉而擾動工作流體致使其向下流動。所述輪轂36收容於所述殼體20之外凹部28內(如圖4)，其包括自所述圓板32垂直向上延伸之二環形之夾板(圖未標)。該二夾板同軸且共同夾置一環形之永磁體360，其中該磁體360具有複數均勻分佈且相互交替之N極362及S極364(如圖5)，其用於與所述外定子50及內定子40所產生之交變磁場相互作用而驅動轉子30旋轉。所述轉軸38被所述輪轂36所環繞，其通過一軸承60容置於所述殼體20之內凹部26內(如圖4)，從而對轉子30軸向定位。 The rotor 30 is interposed between the casing 20 and the base 10, and includes an impeller group (not shown) and a hub 36 and a rotating shaft 38 extending vertically upward from the impeller group. The impeller assembly further includes a circular plate 32 and a plurality of blades 34 coupled to the bottom of the circular plate 32. The impeller assembly is received within the upper portion of the opening 12 of the base 10 (Fig. 4), which disturbs the working fluid by rotation of the vanes 34 to cause it to flow downward. The hub 36 is received in the outer recess 28 of the housing 20 (as shown in FIG. 4), and includes two annular splints (not labeled) extending vertically from the circular plate 32. The two clamping plates are coaxially and coaxially sandwiched by a ring-shaped permanent magnet 360, wherein the magnet 360 has a plurality of evenly distributed and alternating N-poles 362 and S-poles 364 (FIG. 5) for use with the outer stator 50 and The alternating magnetic fields generated by the inner stator 40 interact to drive the rotor 30 to rotate. The shaft 38 is surrounded by the hub 36 and is received within the recess 26 of the housing 20 by a bearing 60 (Fig. 4) to axially position the rotor 30.

請參閱圖2至圖5，所述內定子40與外定子50之構造基本一致，僅在體積上有所差別。所述內定子40收容於所述殼體20之內容置部22內，所述外定子50收容於殼體20之外容置部24內，且該二者均與電路板80電性連接，以受電流之激發而產生交變磁場。所述外定子50及內定子40均包括複數相互堆疊之軛片42、52，其中每一軛片42、52均包括一環狀之外框(圖未標)、複數自外框輻射向內形成之齒部(圖未標)及複數分別結合至齒部末端之定位部44、54。複數激磁線圈46、56分別纏繞於所述齒部上，以磁化軛片42、52使其產生強磁場。所述內定子40及外定子50之齒部之數量與所述轉子30磁體360之磁極362、364數量相等，二者在通電之後可產生相同數量之磁極。所述內定子40及外定子50之齒部一一正對，且內定子40之線圈46之繞線方向與外定子50之線圈56之繞線方向相反，由此，當泵通電之後，內定子40之每一齒部所產生之磁場方向將始終保持與外定子50之相對之齒部所產生之磁場方向相反(如圖5，即二者之同極相互正對)，該二磁場對轉子30磁體360之相應磁極362、364上施加相同方向之磁矩(垂直於紙面方向)，進而共同帶動轉子30旋轉。所述定位部44、54之寬度大於所述齒部之寬度，以更均勻地將磁場分佈於軛片42、52所圍設出之空間內。 Referring to FIGS. 2 to 5, the inner stator 40 is substantially identical in construction to the outer stator 50, differing only in volume. The inner stator 40 is received in the receiving portion 22 of the casing 20 , and the outer stator 50 is received in the outer receiving portion 24 of the casing 20 , and both of them are electrically connected to the circuit board 80 . An alternating magnetic field is generated by excitation by a current. The outer stator 50 and the inner stator 40 each include a plurality of yokes 42 and 52 stacked on each other, wherein each of the yokes 42 and 52 includes an annular outer frame (not shown), and a plurality of outer frames radiate inward. The formed teeth (not shown) and the plurality of positioning portions 44, 54 are respectively coupled to the ends of the teeth. A plurality of exciting coils 46, 56 are respectively wound around the teeth to magnetize the yokes 42, 52 to generate a strong magnetic field . The number of teeth of the inner stator 40 and the outer stator 50 is equal to the number of magnetic poles 362, 364 of the magnets 360 of the rotor 30, which can produce the same number of magnetic poles after energization. The teeth of the inner stator 40 and the outer stator 50 are aligned one by one, and the winding direction of the coil 46 of the inner stator 40 is opposite to the winding direction of the coil 56 of the outer stator 50, thereby, when the pump is energized, it is determined The direction of the magnetic field generated by each of the teeth of the sub-40 will always remain opposite to the direction of the magnetic field generated by the opposing teeth of the outer stator 50 (as shown in Figure 5, ie, the two poles are opposite each other), the two magnetic field pairs The magnetic moments of the same direction are applied to the respective magnetic poles 362, 364 of the rotor 30 magnet 360 (perpendicular to the direction of the paper surface), which in turn drives the rotor 30 to rotate. The width of the positioning portions 44, 54 is larger than the width of the tooth portion to more uniformly distribute the magnetic field in the space surrounded by the yoke sheets 42, 52.

所述電路板80大致呈圓形，其中部開設一圓孔(圖未標)，其一側具有與外部電路(圖未示)連通之導線82。所述電路板80置於所述殼體20之側壁240上，其導線82穿過所述殼體20之缺口200，其圓孔則被所述殼體20之軸管220插設而使電路板80套置於軸管220上。 The circuit board 80 has a substantially circular shape, and a circular hole (not shown) is formed in a middle portion thereof, and a wire 82 communicating with an external circuit (not shown) is provided on one side thereof. The circuit board 80 is disposed on the side wall 240 of the casing 20, and the wire 82 passes through the notch 200 of the casing 20, and the circular hole is inserted into the shaft tube 220 of the casing 20 to make the circuit. A plate 80 is placed over the shaft tube 220.

所述蓋板90呈方形，其通過螺絲固定至殼體20上而與所述殼體20及底座10形成如圖1所示之整體。該蓋板90覆蓋住電路板80，以保護位於殼體20內部之元件。 The cover plate 90 has a square shape and is fixed to the housing 20 by screws to form an integral with the housing 20 and the base 10 as shown in FIG. The cover plate 90 covers the circuit board 80 to protect components located inside the housing 20.

當電路板80通電之後，其將電流分別輸送至內定子40及外定子50內而激發兩者，使其產生相對之磁場。由於內定子40及外定子50分別位於轉子30之內外兩側，兩者所產生之磁場可分別與轉子30之磁體360所產生之內部穩恒磁場及外部穩恒磁場相互作用，從而分別從內外兩側驅動轉子30旋轉。此時轉子30所產生之內外磁場均得到充分地利用，其可在內定子40和外定子50之共同作用下獲得一較高之轉速，由此提高泵之工作效率。 When the board 80 is energized, it delivers current to the inner stator 40 and the outer stator 50, respectively, to excite both to create a relative magnetic field. Since the inner stator 40 and the outer stator 50 are respectively located on the inner and outer sides of the rotor 30, the magnetic fields generated by the two can respectively generate an internal stable magnetic field and external stability generated by the magnet 360 of the rotor 30. The magnetic fields interact to drive the rotor 30 to rotate from the inner and outer sides, respectively. At this time, the internal and external magnetic fields generated by the rotor 30 are fully utilized, and a higher rotational speed can be obtained by the combination of the inner stator 40 and the outer stator 50, thereby improving the working efficiency of the pump.

如圖6所示，可以理解地，為了克服傳統之泵中存在之由於設計不良而導致轉子30無法自啟動之“死點”現象，可將內定子40與外定子50之齒部相互錯開一定之角度，使二者所產生之磁場處於非正對狀態。 As shown in FIG. 6, it can be understood that in order to overcome the "dead point" phenomenon that the rotor 30 cannot be self-starting due to poor design in the conventional pump, the teeth of the inner stator 40 and the outer stator 50 can be offset from each other. The angle is such that the magnetic fields generated by the two are in a non-positive state.

還可以理解地，本發明之雙定子之結構不僅局限于使用於泵內，還可引申至其他相關之領域當中，如風扇或是發電機內。雖然本發明已以較佳實施例揭示如上，然其並非用以限定本發明。任何熟習此技藝者，所作各種更動或修正，仍屬本發明的精神和範圍。本發明之保護範圍，視後附之申請專利範圍所界定者為準。 It will also be appreciated that the structure of the dual stator of the present invention is not limited to use in pumps, but may be extended to other related fields, such as fans or generators. While the invention has been described above in terms of preferred embodiments, it is not intended to limit the invention. Any changes or modifications made by those skilled in the art are still within the spirit and scope of the present invention. The scope of the present invention is defined by the scope of the appended claims.

2004‧‧‧第二腔室 2004‧‧‧Second chamber

26‧‧‧內凹部 26‧‧‧ Inside recess

28‧‧‧外凹部 28‧‧‧Outer recess

34‧‧‧葉片 34‧‧‧ blades

360‧‧‧磁體 360‧‧‧ magnet

38‧‧‧轉軸 38‧‧‧ shaft

40‧‧‧內定子 40‧‧‧ inner stator

50‧‧‧外定子 50‧‧‧Outer stator

70‧‧‧墊片 70‧‧‧shims

80‧‧‧電路板 80‧‧‧ boards

Claims

一種泵，用於液冷散熱系統，其包括一殼體及容置於殼體內之一內定子及一轉子，該轉子包括一環繞內定子之磁體，其改良在於：該泵還包括一環繞轉子之磁體之外定子，該內定子及外定子位於第一腔室內，該轉子位於與該第一腔室隔開之第二腔室內，該內定子及外定子均包括複數數量相等之齒部，該等內定子之齒部與外定子之齒部一一正對。 A pump for a liquid cooling heat dissipation system includes a housing and a stator and a rotor housed in the housing, the rotor including a magnet surrounding the inner stator, wherein the pump further includes a surrounding rotor a stator other than the magnet, the inner stator and the outer stator being located in the first chamber, the rotor being located in a second chamber spaced apart from the first chamber, the inner stator and the outer stator each including a plurality of equal numbers of teeth, The teeth of the inner stator are aligned with the teeth of the outer stator.

如申請專利範圍第1項所述之泵，其中該內定子及外定子均包括複數數量相等之齒部，該等內定子之齒部與外定子之齒部相互錯開。 The pump of claim 1, wherein the inner stator and the outer stator each include a plurality of equal numbers of teeth, and the teeth of the inner stator and the teeth of the outer stator are offset from each other.

如申請專利範圍第1或2項所述之泵，其中該內定子及外定子還包括複數纏繞於其齒部上之激磁線圈，該內定子之線圈之纏繞方向與該外定子之線圈之纏繞方向相反。 The pump of claim 1 or 2, wherein the inner stator and the outer stator further comprise a plurality of exciting coils wound on the teeth thereof, the winding direction of the inner stator coil and the winding of the outer stator coil The opposite direction.

如申請專利範圍第3項所述之泵，其中該轉子還包括一葉輪組、一自葉輪組垂直向上延伸之轉軸及一結合至葉輪組上且圍繞轉軸並將磁體收容於其內之輪轂，該磁體之磁極數量與內定子之齒部數量相等。 The pump of claim 3, wherein the rotor further comprises an impeller group, a rotating shaft extending vertically upward from the impeller group, and a hub coupled to the impeller group and surrounding the rotating shaft and receiving the magnet therein. The number of magnetic poles of the magnet is equal to the number of teeth of the inner stator.

如申請專利範圍第4項所述之泵，其中該殼體具有一開設於其中部之通口及一形成於通口內之隔板，該隔板將通口分隔成開口朝上之第一腔室及位於第一腔室下方且開口朝下之第二腔室。 The pump of claim 4, wherein the housing has a port opened in the middle portion and a partition formed in the opening, the partition dividing the opening into the first opening a chamber and a second chamber located below the first chamber and having a downward opening.

如申請專利範圍第5項所述之泵，其中該第一腔室包括一環形之內容置部及一圍繞該內容置部之環形之外容置部，該內定子收容於內容置部內，該外定子收容于外容置部內。 The pump of claim 5, wherein the first chamber comprises a ring The inner portion of the shape and the outer annular receiving portion surrounding the content portion are received in the inner portion, and the outer stator is received in the outer receiving portion.

如申請專利範圍第6項所述之泵，其中該第二腔室包括一圓形之內凹部及一環繞該內凹部之環形之外凹部，該轉子之轉軸收容於該內凹部內，該轉子之輪轂收容於該外凹部內。 The pump of claim 6, wherein the second chamber comprises a circular inner recess and an annular outer recess surrounding the inner recess, the rotor shaft of the rotor being received in the inner recess, the rotor The hub is housed in the outer recess.

如申請專利範圍第7項所述之泵，其中該第二腔室之內凹部被該第一腔室之內容置部所圍繞，其外凹部則位於第一腔室之內容置部及外容置部之間。 The pump of claim 7, wherein the inner recess of the second chamber is surrounded by the inner portion of the first chamber, and the outer recess is located at the outer portion and the outer portion of the first chamber. Between the parts.

如申請專利範圍第4項所述之泵，其中該泵還包括一固定至該殼體下方之底座，該底座之中部開設一收容轉子之葉輪組之圓形之開口，該底座之一側開設與該開口連通之一進水口及一出水口。 The pump of claim 4, wherein the pump further comprises a base fixed to the lower portion of the housing, wherein the base defines a circular opening for receiving the rotor group of the rotor, and one side of the base is opened. A water inlet and a water outlet are connected to the opening.

如申請專利範圍第9項所述之泵，其中該底座之開口之中部水平向內凸伸出一凸條，該凸條位於進水口及出水口之間。 The pump of claim 9, wherein the middle portion of the opening of the base protrudes horizontally inwardly from a ridge, the rib being located between the water inlet and the water outlet.

如申請專利範圍第10項所述之泵，其中該泵還包括一具有穿孔之圓形之墊片，其置於該凸條上而將出水口及進水口隔開。 The pump of claim 10, wherein the pump further comprises a circular perforated spacer disposed on the rib to separate the water outlet from the water inlet.

如申請專利範圍第11項所述之泵，其中該泵還包括一電路板及一蓋板，該電路板置於隔板上且與內定子及外定子電性連接，該蓋板固定於殼體上且覆蓋住電路板。 The pump of claim 11, wherein the pump further comprises a circuit board and a cover plate, the circuit board is disposed on the partition plate and electrically connected to the inner stator and the outer stator, the cover plate is fixed to the shell Body and cover the board.