TWI506923B - Electric blowers and electric vacuum cleaners - Google Patents
Electric blowers and electric vacuum cleaners Download PDFInfo
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- TWI506923B TWI506923B TW103122024A TW103122024A TWI506923B TW I506923 B TWI506923 B TW I506923B TW 103122024 A TW103122024 A TW 103122024A TW 103122024 A TW103122024 A TW 103122024A TW I506923 B TWI506923 B TW I506923B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/141—Stator cores with salient poles consisting of C-shaped cores
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
本發明係關於電動送風機及電動吸塵器。The present invention relates to an electric blower and an electric vacuum cleaner.
搭載於電動吸塵器之送風部(blower)和馬達(motor)形成為一體的電動送風機,一般是使用30000~45000r/min之高轉數。因此,在電動送風機中,係使用具有2個磁極的磁場線圈之定子(stator)、以及在定子的內側的具有電機子線圈及整流子的轉子(rotor)所構成的整流子馬達。An electric blower that is integrated into a blower and a motor of an electric vacuum cleaner generally uses a high number of revolutions of 30,000 to 45,000 r/min. Therefore, in the electric blower, a stator having a magnetic field coil having two magnetic poles and a commutator motor including a rotor having a motor sub-coil and a commutator inside the stator are used.
在過去的電動送風機中,磁極係從外形略成正方形的軛鐵(yoke)向內側突出,其磁極角(磁極先端的圓弧的兩端和軸中心連結的2直線所成的角度)為120度~140度。磁場線圈係捲裝在此磁極的周圍,若使跨越磁極的左右兩側之間的線圈端部(coil end)以最短路徑的直線連結,則會干擾到轉子,所以,在外徑側使其彎曲繞過。另外,捲上磁場線圈的磁極左右的側面並不是平行而是向內徑側展開的斜面,為軛鐵圍住其外側的形狀。因此,在將線圈捲裝在磁極周圍時,使線料(wire)從磁極先端和軛鐵之間的開口部滑入,利用線料的張力而捲附在磁極根部。其結果為,線圈的排列方式由過程決定,難以整列線圈(使線圈規則地整齊而高密度地並排),線圈占積率(實際捲裝的卷線,佔用語配置卷線所準備的空間的 比例)低,而且,因為卷線常變長,所以妨礙了電動送風機的效率提高以及輕量化。In the conventional electric blower, the magnetic pole protrudes inward from a yoke whose shape is slightly square, and the magnetic pole angle (the angle formed by the two straight lines connecting the ends of the arc of the magnetic pole tip and the center of the shaft) is 120. Degree ~ 140 degrees. The magnetic field coil is wound around the magnetic pole, and if the coil end between the left and right sides of the magnetic pole is connected by a straight line of the shortest path, the rotor is disturbed, so that it is bent on the outer diameter side. Bypass. Further, the side surfaces on the right and left sides of the magnetic poles of the magnetic field coil are not parallel but are inclined on the inner diameter side, and have a shape in which the yoke is surrounded by the outer side. Therefore, when the coil is wound around the magnetic pole, a wire is slid in from the opening between the tip end of the magnetic pole and the yoke, and is wound around the root of the magnetic pole by the tension of the strand. As a result, the arrangement of the coils is determined by the process, and it is difficult to arrange the coils (the coils are regularly aligned and high-density side by side), and the coil occupation ratio (the actual packaged winding line, the space occupied by the occupant configuration winding line) The ratio is low, and since the winding wire is often long, the efficiency and weight reduction of the electric blower are hindered.
提高線圈占積率的方法為,例如,在後述的專利文獻1中,揭露後述技術:以在磁極根部分割的分割鐵心(core)為定子鐵心(stator core),在定子鐵心外將事先型捲成形或以繞線管(bobbin)卷高密度地捲裝的線圈(一個元件狀態)安裝在分割的單獨磁極,藉此提高線圈占積率。For example, in Patent Document 1 to be described later, a technique in which a split core that is divided at a root portion of a magnetic pole is a stator core and a pre-roll is placed outside the stator core. A coil (a component state) which is formed or wound in a high density by a bobbin is mounted on the divided individual magnetic poles, thereby increasing the coil occupation ratio.
專利文獻1:日本特開2010-200467號公報Patent Document 1: Japanese Laid-Open Patent Publication No. 2010-200467
但是,依據上述過去的技術,磁場線圈還是卷裝在磁極角大的磁極的周圍,必須要將跨越磁極左右兩側之間的線圈端部在外徑側彎曲繞過。為了達成線圈端部的的彎曲和整列線圈,必須要先不使線圈端部彎曲而實施整列線圈,之後,再單獨把線圈端部變形為彎曲的形狀。因此,會產生使線圈端部變形時線圈的排列亂掉,或使絕緣皮膜損傷的情況,另外,在使其變形後必須要使用清漆(varnish)、自融著線(表面事先塗有熱融著樹脂的線料)等,以將線圈之間固定,因此,其生產性及經濟性明顯降低。而且,鐵心分割位置為磁極的根部,所以,所有的磁束線都跨越分割面,使得鐵心分割進一步導致效率低下。However, according to the above-described past technique, the magnetic field coil is wound around the magnetic pole having a large magnetic pole angle, and it is necessary to bend the end portion of the coil between the left and right sides of the magnetic pole on the outer diameter side. In order to achieve the bending of the coil end portion and the alignment of the coils, it is necessary to perform the entire array of coils without bending the coil ends, and then separately deform the coil ends into a curved shape. Therefore, there is a case where the arrangement of the coil is broken when the end portion of the coil is deformed, or the insulating film is damaged. Further, after the deformation, it is necessary to use a varnish or a self-melting line (the surface is previously coated with heat and melt). The resin strands and the like are used to fix the coils, and thus productivity and economy are remarkably lowered. Moreover, since the core division position is the root of the magnetic pole, all the magnetic flux lines cross the division plane, so that the core division further leads to inefficiency.
另外,在用於家庭用的電動吸塵器的電動送風機中,定子鐵心之軸方向高度表磁極內徑短1/3~1/2,線圈端部長度的長短對於電動送風機的效率有很大的影響。因此,就提高電動送風機的效率的觀點而言,最好避免將線圈端部在外徑側彎曲繞過。In addition, in the electric blower for electric vacuum cleaners for household use, the inner diameter of the axial height of the stator core is shorter by 1/3 to 1/2, and the length of the end of the coil has a great influence on the efficiency of the electric blower. . Therefore, from the viewpoint of improving the efficiency of the electric blower, it is preferable to avoid bending the coil end portion on the outer diameter side.
本發明為了解決上述問題,其目的在於提供電動送風機,其使得磁場線圈的整列線圈容易達成,並能提高效率及達到輕量化。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide an electric blower which can easily achieve an entire row of coils of a field coil, and can improve efficiency and reduce weight.
為了解決上述課題並達成目的,本發明電動送風機,其係由具有定子鐵心及磁場線圈的定子、以及配置於該定子之內側的轉子構成;其中,該定子鐵心,在磁極中心線向轉動方向的後側偏移的2處鐵心分割位置,分割為2個C字形狀部的第1定子鐵心及第2定子鐵心;該第1定子鐵心及該第2定子鐵心,在和該磁極中心線垂直方向的位置,最外側的鐵心部分為3個直線(straight)部並向外側膨出為U字狀,藉由向外側膨出的上述U字形狀,使用在和該轉子的外周之間形成的第1區域,以及夾住該3個直線部當中中央的直線部的鐵心部分並和該第1區域對稱之位置的第2區域,以作為捲裝該磁場線圈的區域,並且,使得和該轉子對向部分的徑方向的寬度在越靠近該鐵心分割位置之處越小。In order to solve the above problems and achieve the object, the electric blower of the present invention is composed of a stator having a stator core and a field coil, and a rotor disposed inside the stator; wherein the stator core is in the direction of rotation of the magnetic pole center line The two core split positions of the rear side are divided into a first stator core and a second stator core of two C-shaped portions; the first stator core and the second stator core are perpendicular to the magnetic pole center line The position of the outermost core portion is three straight portions and is bulged outward in a U shape, and the U-shaped shape bulging outward is used in the same manner as the outer circumference of the rotor. a region, and a second region sandwiching a core portion of the straight portion of the central portion of the three straight portions and symmetrical with the first region, as a region in which the magnetic field coil is wound, and with the rotor pair The width in the radial direction of the portion is smaller as it is closer to the core division position.
依據本發明的電動送風機,使得磁場線圈的整列線圈容易達成,並能提高效率及達到輕量化。According to the electric blower of the present invention, the entire coil of the field coil is easily achieved, and the efficiency and the weight reduction can be improved.
1‧‧‧電動送風機1‧‧‧Electric blower
2‧‧‧送風部2‧‧‧Air Supply Department
3‧‧‧整流子馬達3‧‧‧ commutator motor
4‧‧‧風扇4‧‧‧Fan
5‧‧‧風扇引導部5‧‧‧Fan Guide
6‧‧‧殼體6‧‧‧Shell
7‧‧‧定子7‧‧‧ Stator
8‧‧‧轉子8‧‧‧Rotor
9‧‧‧定子鐵心9‧‧‧ Stator core
9A‧‧‧C字形狀部9A‧‧‧C shape department
9Aa‧‧‧左端部9Aa‧‧‧Left end
9Ab‧‧‧肩部9Ab‧‧‧Shoulder
9Ac‧‧‧腕部9Ac‧‧‧ wrist
9Ad‧‧‧肩部9Ad‧‧‧Shoulder
9Ae‧‧‧右端部9Ae‧‧‧Right end
9B‧‧‧C字形狀部9B‧‧‧C shape section
9Ba‧‧‧左端部9Ba‧‧‧Left end
9Bb‧‧‧肩部9Bb‧‧‧Shoulder
9Bc‧‧‧腕部9Bc‧‧‧ wrist
9Bd‧‧‧肩部9Bd‧‧‧Shoulder
9Be‧‧‧右端部9Be‧‧‧Right end
10‧‧‧磁場線圈10‧‧‧ magnetic field coil
11‧‧‧軸11‧‧‧Axis
12‧‧‧轉子鐵心12‧‧‧Rotor core
13‧‧‧整流子13‧‧ ‧ commutator
14‧‧‧軸承14‧‧‧ bearing
15‧‧‧軸承15‧‧‧ bearing
16‧‧‧軸端部16‧‧‧ shaft end
17‧‧‧電機子線圈17‧‧‧Motor sub-coil
18‧‧‧片段18‧‧‧frag
19‧‧‧刷體19‧‧‧
20‧‧‧空隙20‧‧‧ gap
21‧‧‧支架21‧‧‧ bracket
23‧‧‧楔形物23‧‧‧Wedges
24‧‧‧絕緣構材24‧‧‧Insulating materials
24a、24b‧‧‧壁面24a, 24b‧‧‧ wall
25a、25b‧‧‧鐵心分割位置25a, 25b‧‧‧core division position
26a、26b‧‧‧磁極26a, 26b‧‧‧ magnetic pole
27‧‧‧鐵心固定治具27‧‧‧Iron fixed fixture
28‧‧‧錠翼臂28‧‧‧spindle arm
29‧‧‧噴嘴29‧‧‧Nozzles
30、32‧‧‧空間30, 32‧‧‧ space
31、33‧‧‧空間31, 33‧‧‧ space
34‧‧‧線料34‧‧‧Line material
34a‧‧‧導入線34a‧‧‧Introduction line
35‧‧‧磁極中心線35‧‧‧Magnetic center line
36‧‧‧轉動方向36‧‧‧Rotation direction
37‧‧‧轉動37‧‧‧Rotate
38‧‧‧前後移動38‧‧‧ moving back and forth
41‧‧‧吸塵器本體41‧‧‧ vacuum cleaner body
42‧‧‧吸入口42‧‧‧Inhalation
43‧‧‧集塵部43‧‧‧Dust collection department
44‧‧‧排出口44‧‧‧Export
第1圖為顯示電動送風機的內部之概略構造的縱斷面圖。Fig. 1 is a longitudinal sectional view showing a schematic structure of the inside of an electric blower.
第2圖為顯示從送風部側的軸方向觀看整流子馬達的主要部分的圖。Fig. 2 is a view showing a main portion of the commutator motor viewed from the axial direction of the air blowing portion side.
第3圖為顯示實施形態1的定子鐵心的形狀的圖。Fig. 3 is a view showing the shape of the stator core of the first embodiment.
第4圖為顯示整列線圈狀態的圖。Figure 4 is a diagram showing the state of the entire column of coils.
第5圖為顯示由錠翼(flyer)捲線機的整列線圈的樣子的圖。Fig. 5 is a view showing a state of a whole-row coil by a flyer winding machine.
第6圖為顯示實施形態2的定子鐵心的形狀的圖。Fig. 6 is a view showing the shape of a stator core in the second embodiment.
第7圖為顯示實施形態2的定子鐵心的形狀的圖。Fig. 7 is a view showing the shape of a stator core in the second embodiment.
第8圖為用電磁分析(electro-magnetic analysis)求出的使用第7圖的定子鐵心時的磁束線圖之例。Fig. 8 is an example of a magnetic flux diagram when the stator core of Fig. 7 is obtained by electro-magnetic analysis.
第9圖為在空間30及32中單方的角部為120度時的例子。Fig. 9 is an example of a case where the corners of one of the spaces 30 and 32 are 120 degrees.
第10圖為具有電動送風機的電動吸塵器的斷面圖。Figure 10 is a cross-sectional view of an electric vacuum cleaner having an electric blower.
第11圖為顯示實施形態6的定子鐵心的形狀的圖。Fig. 11 is a view showing the shape of a stator core of the sixth embodiment.
第12圖為顯示實施形態6的定子鐵心的形狀的圖。Fig. 12 is a view showing the shape of the stator core of the sixth embodiment.
第13圖為顯示實施形態7的定子鐵心的形狀的圖。Fig. 13 is a view showing the shape of the stator core of the seventh embodiment.
第14圖為顯示實施形態7的定子鐵心的形狀的圖。Fig. 14 is a view showing the shape of the stator core of the seventh embodiment.
以下,使用圖面詳細說明本發明電動送風機的實施形態。另外,本發明並不限定於此實施形態。Hereinafter, embodiments of the electric blower of the present invention will be described in detail using the drawings. Further, the present invention is not limited to the embodiment.
(構成)(constitution)
第1圖為顯示電動送風機的內部之概略構造的縱斷面圖。電動送風機1,大致上由2個單元構成,亦即:產生吸進力的送風部(blower)2以及驅動送風部2的整流子馬達3。電動送風機1能夠適用於例如電動吸塵器。Fig. 1 is a longitudinal sectional view showing a schematic structure of the inside of an electric blower. The electric blower 1 is basically composed of two units, that is, a blower 2 that generates a suction force and a commutator motor 3 that drives the blower unit 2. The electric blower 1 can be applied to, for example, an electric vacuum cleaner.
送風部2包括:具有複數枚翼片的風扇(fan)4;以及蓋住風扇4並隨著風扇4的轉動,將流通的空氣導入整流子馬達3內部的風扇引導部(fan guide)5。流通的空氣,冷卻隨著運轉而發熱的整流子馬達3,並從設置在殼體(frame)6的開口部(圖未顯示)排出。The blower unit 2 includes a fan 4 having a plurality of fins, and a fan guide 5 that covers the fan 4 and introduces the air that has flowed into the commutator motor 3 in accordance with the rotation of the fan 4. The air that has passed through cools the commutator motor 3 that generates heat as it is operated, and is discharged from an opening (not shown) provided in the casing 6.
整流子馬達3包括:固定在杯(cup)(筒)狀的殼體6的內側之作為場磁鐵的定子7;以及在定子7的內側透過空隙20相對配置並以可自由轉動的方式被支持之作為電機子的轉子8。另外,沒有收入在殼體6的內側的部分,在殼體6設有開口部、缺口等(圖未顯示)並突出到外側。The commutator motor 3 includes a stator 7 as a field magnet fixed inside a cup-shaped casing 6, and is disposed oppositely through the gap 20 inside the stator 7, and is rotatably supported It serves as the rotor 8 of the motor. Further, there is no portion that is received inside the casing 6, and the casing 6 is provided with an opening, a notch, or the like (not shown) and protrudes to the outside.
定子7包括:由複數枚電磁鋼板積層固定而成的定子鐵心9;以及藉由絕緣構材捲裝在定子鐵心9的磁場線圈10。在定子7中,藉由使電流流過磁場線圈10,在定子7內側產生磁場。The stator 7 includes a stator core 9 which is fixed by lamination of a plurality of electromagnetic steel sheets, and a field coil 10 which is wound around the stator core 9 by an insulating member. In the stator 7, a magnetic field is generated inside the stator 7 by flowing a current through the field coil 10.
轉子8包括:配置在中心的軸(shaft)11、固定在軸11周圍的複數枚電磁鋼板積層固定而成的環狀的轉子鐵心(rotor core)12、藉由絕緣構材捲裝在轉子鐵心12上的電機子線圈17、及和轉子鐵心12隔離配置並固定在軸11周圍的整流子13。轉子8係由軸11及軸承(bearing)14、軸承15以可自由轉動的方式支撐在殼體6。The rotor 8 includes a shaft 11 disposed at a center, a ring-shaped rotor core 12 fixed by laminating a plurality of electromagnetic steel sheets fixed around the shaft 11, and wound around the rotor core by an insulating member. The motor sub-coil 17 on the 12 and the commutator 13 disposed around the rotor 11 are disposed apart from the rotor core 12. The rotor 8 is rotatably supported by the housing 6 by a shaft 11, a bearing 14, and a bearing 15.
送風部2側的軸承14,係收納在橫跨殼體6的開口部設置為架橋形狀的支架(bracket)21。另外,另一邊(和送風部2側相反的一側)的軸承15,則收納在殼體6的底部。The bearing 14 on the side of the air blowing unit 2 is housed in a bracket 21 that is provided in a bridging shape across the opening of the casing 6. Further, the bearing 15 on the other side (the side opposite to the side of the air blowing portion 2) is housed in the bottom of the casing 6.
風扇4係固定在軸11的送風部2側的軸端部16,風扇4隨著轉子8的轉動而被驅動轉動。構成電機子線圈17的複數的線圈(coil)的始端(開始捲的一端)和終端(捲完的一端)用熔融(fusing)等的方法和整流子13的片段(segment)18電性地連接。固持在殼體6,藉由彈簧按壓向整流子13並滑動接觸的一對刷體19,和電源(圖未顯示)連接,透過整流子13,將電流(電機子電流)供應給電機子線圈17。The fan 4 is fixed to the shaft end portion 16 on the side of the air blowing portion 2 of the shaft 11, and the fan 4 is driven to rotate in accordance with the rotation of the rotor 8. The start end (one end of the start of the roll) and the end (the end of the roll) of the plurality of coils constituting the motor sub-coil 17 are electrically connected to the segment 18 of the commutator 13 by a method such as fusing or the like. . It is held in the casing 6, and a pair of brush bodies 19 which are pressed and contacted to the commutator 13 by a spring are connected to a power source (not shown), and are passed through the commutator 13 to supply a current (motor sub-current) to the motor sub-coil. 17.
藉由定子7所產生的磁場和電機子電流,在轉子8產生轉矩。在轉子8,由於轉動方向是一定的,配合轉子8的相位,電機子電流流過的線圈以切換的方式和電機子線圈17及片段18連結。Torque is generated in the rotor 8 by the magnetic field generated by the stator 7 and the motor sub-current. In the rotor 8, since the direction of rotation is constant, the coil through which the motor subcurrent flows is coupled to the motor sub-coil 17 and the segment 18 in a switching manner in accordance with the phase of the rotor 8.
第2圖為顯示從送風部2側的軸方向觀看整流子馬達3的主要部分的圖。不過,殼體6、轉子8為斷面圖,磁場線圈10的右側半為從軸方向觀看的圖而左側半為斷面圖。另外,第3圖為從第2圖中挑出定子鐵心9,顯示本實施形態的定子鐵心9的形狀的圖。轉子8,其中心有軸11,電機子線圈17藉由絕緣構材22捲裝在轉子鐵心12上,並藉由楔形物(wedge)23擋住。轉子8的轉動方向36,係由送風部2的翼片的方向決定,在從送風部2側的軸方向觀看的圖中為左旋(逆時針方向)。定子鐵心9,在2處的鐵心分割位置25a、25b分割為2個C字形狀部9A、9B(即為第1定子鐵心、第2定子鐵心)。C字形狀部9A的 左端部9Aa和C字形狀部9B的右端部9Be、以及C字形狀部9A的右端部9Ae和C字形狀部9B的左端部9Ba,分別構成1個磁極26a、26b。在磁極26a、26b的內側,轉子8隔著既定的空隙20相對配置。Fig. 2 is a view showing a main portion of the commutator motor 3 viewed from the axial direction of the air blowing portion 2. However, the casing 6 and the rotor 8 are cross-sectional views, and the right half of the field coil 10 is a view seen from the axial direction and the left half is a cross-sectional view. In addition, Fig. 3 is a view showing the shape of the stator core 9 of the present embodiment, in which the stator core 9 is picked up from Fig. 2 . The rotor 8 has a shaft 11 at its center, and the motor sub-coil 17 is wound around the rotor core 12 by an insulating member 22, and is blocked by a wedge 23. The rotation direction 36 of the rotor 8 is determined by the direction of the fin of the blower unit 2, and is left-handed (counterclockwise) in the drawing viewed from the axial direction of the blower unit 2 side. The stator core 9 is divided into two C-shaped portions 9A and 9B at the two core division positions 25a and 25b (that is, the first stator core and the second stator core). C-shaped portion 9A The left end portion 9Aa and the right end portion 9Be of the C-shaped portion 9B, and the right end portion 9Ae of the C-shaped portion 9A and the left end portion 9Ba of the C-shaped portion 9B constitute one magnetic pole 26a, 26b, respectively. Inside the magnetic poles 26a and 26b, the rotor 8 is disposed to face each other with a predetermined gap 20.
2處的鐵心分割位置25a、25b,係位於相對於轉子8的對稱位置上,係位於從磁極中心線35向轉子8的轉動方向的後側偏移的位置。具體言之,在電性中性軸的旁邊。由磁場線圈10產生的磁束,在磁極26a、26b間係沿著磁極中心線35的方向,但因為和電機子線圈17產生的磁束合成,所以電性中性軸從磁極中心線35向轉動方樣的後側偏移。因此,2處的鐵心分割位置25a、25b從磁極中心線35偏移的角度,係依據分別由磁場線圈10和電機子線圈17產生的磁束的平衡狀況來設定。The two core division positions 25a and 25b are located at symmetrical positions with respect to the rotor 8, and are located at positions shifted from the magnetic pole center line 35 toward the rear side in the rotation direction of the rotor 8. Specifically, next to the electrically neutral axis. The magnetic flux generated by the magnetic field coil 10 is along the direction of the magnetic pole center line 35 between the magnetic poles 26a, 26b, but because of the magnetic flux synthesis generated by the motor sub-coil 17, the electrically neutral axis is rotated from the magnetic pole center line 35. The back side offset. Therefore, the angle at which the two core division positions 25a and 25b are offset from the magnetic pole center line 35 is set in accordance with the balance condition of the magnetic fluxes generated by the field coil 10 and the motor sub-coil 17, respectively.
2個C字形狀部9A、9B中,垂直於轉子8的軸的斷面形狀(軸方向視),對於轉子8的中心為略點對稱的略同形狀。2個C字形狀部9A、9B中,位於和磁極中心線35略垂直的方向的位置的中央部,分別由肩部9Ab、腕部9Ac、肩部9Ad、以及肩部9Bb、腕部9Bc、肩部9Bd的各3個直線部形成U字形狀,從磁極26a、26b的兩端向外側膨出,在和轉子8的外周之間形成略四角形狀的空間30、32(第1區域)。在略四角形狀的空間30、32,以及夾著中央的直線部的腕部9Ac、腕部9Bc且對稱的空間31、33(第2區域),磁場線圈10在腕部9Ac及腕部9Bc的周圍捲裝為環形(toroidal)卷。夾著磁極中心線35,流到左右2個磁場線圈10的電流的方向為,從轉子8的軸方向觀之,對磁極中心線35為非對稱地流動方向連線。在第2圖中,圓圈 中有一點和圓圈中有打叉的(x-mark)記號係表示卷的方向。另外,流到磁場線圈10的電流的方向,並不限定於第2圖的方向,也可以為反方向的組合。Among the two C-shaped portions 9A and 9B, the cross-sectional shape (in the axial direction) perpendicular to the axis of the rotor 8 is slightly symmetrical with respect to the center of the rotor 8. Among the two C-shaped portions 9A and 9B, the central portion at a position slightly perpendicular to the magnetic pole center line 35 is a shoulder portion 9Ab, a wrist portion 9Ac, a shoulder portion 9Ad, a shoulder portion 9Bb, and a wrist portion 9Bc. Each of the three straight portions of the shoulder portion 9Bd is formed in a U shape, and is bulged outward from both ends of the magnetic poles 26a and 26b, and a space 30 and 32 (first region) having a substantially square shape is formed between the outer circumference of the rotor 8. The magnetic field coils 10 are at the wrist portions 9Ac and the wrist portions 9Bc in the slightly square-shaped spaces 30 and 32, and the wrist portions 9Ac and the wrist portions 9Bc sandwiching the central straight portion and the symmetrical spaces 31 and 33 (the second region). The surrounding package is a toroidal roll. The direction of the current flowing to the left and right magnetic field coils 10 is sandwiched by the magnetic pole center line 35, and is viewed from the axial direction of the rotor 8, and is connected to the magnetic pole center line 35 in an asymmetrical flow direction. In Figure 2, the circle There is a point in the circle and a cross-hatched (x-mark) mark in the circle indicates the direction of the volume. Further, the direction of the current flowing to the field coil 10 is not limited to the direction of the second drawing, and may be a combination of the opposite directions.
(作用)(effect)
在電動送風機1中,將整流子馬達3的定子鐵心9構成如上述,藉此能夠避免和轉子8的干擾,因此不需要把磁場線圈10的線圈端部彎曲。另外,作為設置磁場線圈10的第1層的面之腕部9Ac、腕部9Bc為直線狀,磁場線圈10的左右的空間是開放的,藉此,容易控制線料安置的位置,而容易整列線圈。另外,對於馬達性能沒有貢獻的無用的空間變少,而縮短磁路長。將上述的理由更詳細說明如後。In the electric blower 1, the stator core 9 of the commutator motor 3 is configured as described above, whereby interference with the rotor 8 can be avoided, and therefore it is not necessary to bend the coil end portion of the field coil 10. Further, the wrist portion 9Ac and the arm portion 9Bc which are the surfaces of the first layer in which the field coil 10 is provided are linear, and the left and right spaces of the field coil 10 are open, whereby it is easy to control the position where the strands are placed, and it is easy to arrange the entire column. Coil. In addition, the useless space that does not contribute to the performance of the motor is reduced, and the magnetic path length is shortened. The above reasons are explained in more detail below.
通常,以高密度配置一般所使用的圓斷面的線料的情況下,如第4圖的斷面圖所示,幾乎沒有空隙地以線料線徑d的間隔排列第1層。第4圖為顯示整列線圈狀態的圖。另外,為了使說明簡單化,第4圖所示之卷數和配置,和第3圖所示之卷數和配置不同。在整列線圈中,每一層的配置結束並移到更上一層時,必須控制為和一圈(turn)前的線料交差並改變線料的方向,藉由絕緣構材24的壁面24a、24b,使得容易進行線料的控制。具體言之,就是第4圖所示的第1層的最後一圈的線料的方向和移到第2層時的線料的方向的部分。第2層之後,把線料沿著下面一層的線料之間的凹部設置,藉此防止位置偏移,而可以容易做到整列線圈(所謂的「稻草包堆積」)。因此,第1層放置的面,沿著線料排列的方向為直線狀,而適於做成整列線圈。In general, when the wire material having a circular cross section generally used is disposed at a high density, as shown in the cross-sectional view of Fig. 4, the first layer is arranged at intervals of the wire diameter d with almost no gap. Figure 4 is a diagram showing the state of the entire column of coils. In addition, in order to simplify the description, the number of rolls and the arrangement shown in FIG. 4 are different from the number of rolls and the arrangement shown in FIG. In the entire column of coils, when the configuration of each layer is finished and moved to the upper layer, it must be controlled to intersect with the strand before the turn and change the direction of the strand by the wall faces 24a, 24b of the insulating member 24. This makes it easy to control the strands. Specifically, it is the direction of the strand of the last turn of the first layer shown in Fig. 4 and the direction of the strand when moving to the second layer. After the second layer, the strands are placed along the recesses between the strands of the lower layer, thereby preventing positional deviation, and the entire array of coils (so-called "straw pack accumulation") can be easily achieved. Therefore, the surface placed on the first layer is linear along the direction in which the strands are arranged, and is suitable for forming an entire row of coils.
執行捲線的自動機,例如第5圖的概要圖所示般,使用錠翼(flyer)捲線機。第5圖顯示由錠翼(flyer)捲線機的整列線圈的樣子的圖。錠翼捲線機中,用鐵心固定治具27固定C字形狀部9A或9B,使得在尖端設置引導線料34的噴嘴(nozzle)29的錠翼臂(flyer arm)28在腕部9Ac或腕部9Bc的周圍轉動,以進行捲線。在第5圖中,安置線料34的位置的控制,係藉由將錠翼臂28的轉動37和前後移動38同步控制而執行。導入線34a係為用錠翼捲線機將線料34捲在C字形狀部9A或9B時的導入部。但是,線料34通常是採用2以下的銅電線或鋁電線,所以其剛性低,另外,由於在插通噴嘴29之前的變形過程而殘留有彎曲的舊態,所以從噴嘴29的出口出來的線料34並非筆直,安置線料34的位置偏移了目標位置而使得整列線圈亂掉。為了減少此一現象,噴嘴29靠近安置線料34的面較佳。因此,磁場線圈10的左右的空間是開放的而讓噴嘴29可以靠近,而適用於整列線圈。另外,在固定噴嘴29,而讓C字形狀部9A或9B轉動的紡錘(spindle)捲線方式的情況下亦然。The automaton that performs the winding is used, for example, as shown in the schematic diagram of Fig. 5, using a flyer winding machine. Figure 5 shows a diagram of the appearance of the entire array of coils by a flyer. In the spindle winding machine, the C-shaped portion 9A or 9B is fixed by the core fixing jig 27 so that the flyer arm 28 of the nozzle 29 of the guide wire 34 is provided at the tip end at the wrist 9Ac or the wrist. The periphery of the portion 9Bc is rotated to perform winding. In Fig. 5, the control of the position of the wire 34 is performed by synchronously controlling the rotation 37 of the flyer arm 28 and the forward and backward movement 38. The introduction line 34a is an introduction portion when the strand 34 is wound around the C-shaped portion 9A or 9B by a spindle winding machine. However, the wire 34 is usually adopted The copper wire or the aluminum wire of 2 or less is low in rigidity, and since the old state of bending remains after the deformation process before the nozzle 29 is inserted, the wire 34 from the outlet of the nozzle 29 is not straight, and the line is placed. The position of the material 34 is offset by the target position such that the entire array of coils is lost. In order to reduce this phenomenon, it is preferable that the nozzle 29 is close to the surface on which the strand 34 is placed. Therefore, the left and right spaces of the field coil 10 are open to allow the nozzles 29 to be close to each other, and are suitable for the entire array of coils. Further, in the case of a spindle winding method in which the nozzle 29 is fixed and the C-shaped portion 9A or 9B is rotated.
另外,鐵心分割位置25a、25b在電性中性軸附近其磁束密度低,跨過鐵心分割面的磁束線少藉此,能夠抑制因為鐵心分割而造成的效率低下。Further, the core division positions 25a and 25b have a low magnetic flux density in the vicinity of the electrical neutral axis, and the number of magnetic flux lines crossing the core division surface is small, thereby suppressing the inefficiency due to the core division.
另外,不需要彎曲磁場線圈10的線圈端部,安置第1層的面為直線狀,而容易達成整列線圈的其他方法為,不捲在腕部9Ac和腕部9Bc的周圍,而是捲在肩部9Ab、9Ad及9Bb、9Bd的周圍成為環形(toroidal)卷。但是,在此情況下,在空間30、32中必須要有噴嘴29通過的空間,在該部分無法配 置線圈,所以不適合定子鐵心9的小型化及輕量化。Further, it is not necessary to bend the coil end portion of the field coil 10, and the surface on which the first layer is placed is linear, and other methods of easily forming the entire row of coils are not wound around the wrist portion 9Ac and the wrist portion 9Bc, but are wound around The circumference of the shoulders 9Ab, 9Ad, and 9Bb, 9Bd is a toroidal roll. However, in this case, it is necessary to have a space through which the nozzle 29 passes in the spaces 30, 32, which cannot be matched in this portion. Since the coil is placed, it is not suitable for downsizing and weight reduction of the stator core 9.
(效果)(effect)
如上所述之說明,依據本實施形態,不需為了避免和轉子8的干擾而將磁場線圈10的線圈端部彎曲,安置磁場線圈10的第1層的面(腕部9Ac及腕部9Bc)為直線狀,磁場線圈10的左右空間為開放的,藉此使得容易控制安置線料的位置,而容易整列線圈。另外,對於馬達性能沒有貢獻的無用的空間變少,而縮短磁路長。再者,藉由使鐵心分割位置25a、25b的磁束密度低,而能夠抑制因為鐵心分割而造成的效率低下。藉由這些特徵,能夠達成電動送風機1的效率提升以及輕量化。As described above, according to the present embodiment, it is not necessary to bend the coil end portion of the field coil 10 in order to avoid interference with the rotor 8, and to arrange the surface of the first layer of the field coil 10 (the wrist portion 9Ac and the wrist portion 9Bc). In the form of a straight line, the left and right spaces of the field coil 10 are open, thereby making it easy to control the position at which the strands are placed, and it is easy to arrange the coils. In addition, the useless space that does not contribute to the performance of the motor is reduced, and the magnetic path length is shortened. Further, by making the magnetic flux density of the core division positions 25a and 25b low, it is possible to suppress the inefficiency due to the core division. With these features, the efficiency and weight reduction of the electric blower 1 can be achieved.
在本實施形態中,針對構成定子鐵心9的2個C字形狀部9A及9B,就不同於實施形態1的部分進行說明。In the present embodiment, the two C-shaped portions 9A and 9B constituting the stator core 9 will be described as different from the first embodiment.
(構成)(constitution)
在電動送風機1中,2個C字形狀部9A及9B的和轉子8相對的左端部9Aa、右端部9Be以及右端部9Ae、左端部9Ba中徑方向的寬幅(磁路幅),分別在靠近鐵心分割位置25a、25b的地方縮小。在第6及7圖中顯示適用的例子。第6及7圖,和第3圖一樣是從軸方向觀看定子鐵心9的圖,為顯示本實施形態的定子鐵心9的形狀之圖。在第6圖中,在鐵心分割位置25a、25b中設有小寬度的C字形狀部9A和C字形狀部9B的抵接面。另外,在第7圖中,和第6圖的形狀幾乎是相同的,但是,在鐵心分割位置25a、25b設有微小的空隙,將C字形狀部9A和C字形狀部9B隔開,且各尖端部分為R形狀的圓球形。In the electric blower 1, the left end portion 9Aa, the right end portion 9Be, the right end portion 9Ae, and the left end portion 9Ba of the two C-shaped portions 9A and 9B facing each other in the radial direction (magnetic path width) are respectively The position near the core division positions 25a, 25b is reduced. Applicable examples are shown in Figures 6 and 7. Figs. 6 and 7 are views showing the stator core 9 viewed from the axial direction as in the third embodiment, and are views showing the shape of the stator core 9 of the present embodiment. In Fig. 6, the abutting faces of the C-shaped portion 9A and the C-shaped portion 9B having a small width are provided in the core dividing positions 25a and 25b. In addition, in FIG. 7, the shape of FIG. 6 is almost the same, but a minute gap is provided in the core division positions 25a and 25b, and the C-shaped portion 9A and the C-shaped portion 9B are separated, and Each tip end portion has an R-shaped spherical shape.
(作用)(effect)
在電動送風機1中,將C字形狀部9A及C字形狀部9B構成如上述,能夠抑制效率低下並能達成輕量化。將上述的理由更詳細說明如後。In the electric blower 1, the C-shaped portion 9A and the C-shaped portion 9B are configured as described above, and the efficiency can be suppressed and the weight can be reduced. The above reasons are explained in more detail below.
第8圖為用電磁分析(electro-magnetic analysis)求出的使用第7圖的定子鐵心9時的磁束線圖之例。另外,用第6圖的定子鐵心9時的磁束線圖也和第8圖相同。亦即,鐵心分割位置25a、25b附近的磁束密度低,所以,形狀的自由度高,能夠設計成希望的形狀。電性的中性軸,幾乎就是連結鐵心分割位置25a和鐵心分割位置25b的直線,因此,磁束線成為2部分:依序連結轉子鐵心12、C字形狀部9A的9Aa、9Ab、9Ac、9Ad、9Ae、轉子鐵心12的左側的環(loop);以及依序連結轉子鐵心12、C字形狀部9B的9Be、9Bd、9Bc、9Bb、9Ba、轉子鐵心12的右側的環(loop)。Fig. 8 is a view showing an example of a magnetic flux diagram when the stator core 9 of Fig. 7 is obtained by electro-magnetic analysis. Further, the magnetic flux diagram when the stator core 9 of Fig. 6 is used is also the same as that of Fig. 8. In other words, since the magnetic flux density in the vicinity of the core division positions 25a and 25b is low, the degree of freedom of shape is high and can be designed into a desired shape. The electrically neutral axis is almost a straight line connecting the core division position 25a and the core division position 25b. Therefore, the magnetic flux line has two parts: 9Aa, 9Ab, 9Ac, and 9Ad which sequentially connect the rotor core 12 and the C-shaped portion 9A. 9Ae, a loop on the left side of the rotor core 12, and 9Be, 9Bd, 9Bc, 9Bb, and 9Ba of the rotor core 12 and the C-shaped portion 9B, and a loop on the right side of the rotor core 12 in this order.
通過靠近鐵心分割位置25a的磁束線通過(外環)靠近鐵心分割位置25b的位置,而通過遠離鐵心分割位置25a的磁束線通過(內環)遠離鐵心分割位置25b的位置。亦即,在左端部9Aa、右端部9Be、以及右端部9Ae、左端部9Ba中,越靠近鐵心分割位置25a及鐵心分割位置25b的磁束線的條數越少,越遠離鐵心分割位置25a及鐵心分割位置25b的磁束線的條數越多。因此,即使越靠近鐵心分割位置25a及鐵心分割位置25b的磁路幅越小,也不會使磁束密度飽和而能夠抑制效率低下,而能夠達成相應於磁路幅之縮小的輕量化。The magnetic flux line passing through the core division position 25a passes through the (outer ring) position close to the core division position 25b, and passes through the (inner ring) position away from the core division position 25b by the magnetic flux line far from the core division position 25a. In other words, in the left end portion 9Aa, the right end portion 9Be, and the right end portion 9Ae and the left end portion 9Ba, the number of magnetic flux lines closer to the core division position 25a and the core division position 25b is smaller, and the distance from the core division position 25a and the core is further. The number of the magnetic flux lines at the division position 25b is larger. Therefore, even if the magnetic path width closer to the core division position 25a and the core division position 25b is smaller, the magnetic flux density is not saturated, and the efficiency can be suppressed, and the weight reduction corresponding to the reduction of the magnetic path width can be achieved.
(效果)(effect)
如上所述之說明,依據本實施形態,在2個C字形狀部9A及C字形狀部9B中,使得和轉子8相對部分的徑方向的寬幅越靠近鐵心分割位置25a及鐵心分割位置25b就越小。藉此,能夠抑制效率低下,並能進一步達成輕量化。As described above, according to the present embodiment, in the two C-shaped portions 9A and the C-shaped portion 9B, the width in the radial direction of the portion facing the rotor 8 is closer to the core division position 25a and the core division position 25b. The smaller it is. Thereby, it is possible to suppress the inefficiency and further reduce the weight.
在本實施形態中,針對磁場線圈10的捲線方法,就相異於實施形態1和2的部分進行說明。In the present embodiment, the method of winding the magnetic field coil 10 will be described with respect to the portions of the first and second embodiments.
(構成)(constitution)
在電動送風機1中,在定子鐵心9的內側的空間30、32中,係將磁場線圈10配置為稻草包堆積狀,將上下層的線料彼此交差的交差點(cross point)配置在空間30、32之外(定子鐵心9的外側的空間31、33,或者軸方向上側及下側的線圈端部)更佳。In the electric blower 1, in the spaces 30 and 32 on the inner side of the stator core 9, the field coil 10 is placed in a straw-packed shape, and a cross point at which the upper and lower layers are intersected with each other is disposed in the space 30. Further, 32 (the spaces 31 and 33 on the outer side of the stator core 9 or the coil ends on the upper side and the lower side in the axial direction) are more preferable.
(作用)(effect)
藉由將磁場線圈10的捲線狀態做成如上的構成,能夠縮小定子鐵心9的外形(具體言之,為肩部9Ab、9Ad、9Bb、9Bd的長度),而能夠達成效率提高以及輕量化。將上述的理由更詳細說明如後。By forming the winding state of the field coil 10 as described above, it is possible to reduce the outer shape of the stator core 9 (specifically, the lengths of the shoulder portions 9Ab, 9Ad, 9Bb, and 9Bd), and it is possible to achieve efficiency improvement and weight reduction. The above reasons are explained in more detail below.
空間30、32的截面積,大略為腕部(9Ac、9Bc)的長度和肩部(9Ab、9Ad、9Bb、9Bd)的長度之乘積。腕部(9Ac、9Bc)的長度係由轉子8的外徑和磁極角來決定,所以盡量縮短肩部(9Ab、9Ad、9Bb、9Bd)的長度可作為提高效率及輕量化的手段。空間30、32的必要截面積為,將磁場線圈10的截面積除以空間30、32的線圈占積率所得的結果,所以若 提高空間30、32的線圈占積率,就能夠縮短肩部(9Ab、9Ad、9Bb、9Bd)的長度。因此,在空間30、32將磁場線圈10配置為稻草包堆積狀即可。但是,具有上下層的線料彼此交差的交差點的斷面中,其線圈占積率會低於稻草包堆積狀的位置,可是,必須要在下列4處中至少一者設置交差點:定子鐵心9的內側的空間30、32;定子鐵心9的外側的空間31、33;軸方向上側的線圈端部;軸方向下側的線圈端部。因此,具有交差點的一側中,在層方向上的線圈區域擴大了,所以可以將交差點配置在定子鐵心9的外側的空間31、33以及軸方向上側及下側的線圈端部。The cross-sectional area of the spaces 30, 32 is roughly the product of the length of the wrist (9Ac, 9Bc) and the length of the shoulders (9Ab, 9Ad, 9Bb, 9Bd). The length of the wrist portions (9Ac, 9Bc) is determined by the outer diameter of the rotor 8 and the magnetic pole angle. Therefore, shortening the length of the shoulder portions (9Ab, 9Ad, 9Bb, and 9Bd) can be used as a means for improving efficiency and weight. The necessary cross-sectional area of the spaces 30 and 32 is a result obtained by dividing the cross-sectional area of the field coil 10 by the coil occupation ratio of the spaces 30 and 32. By increasing the coil occupying ratio of the spaces 30 and 32, the length of the shoulder portions (9Ab, 9Ad, 9Bb, 9Bd) can be shortened. Therefore, the magnetic field coil 10 may be disposed in the space 30 and 32 in a straw packing shape. However, in the cross section of the intersection where the strands of the upper and lower layers intersect each other, the coil occupancy rate is lower than the position where the straw bales are stacked, but it is necessary to set the intersection point in at least one of the following four points: the stator Spaces 30 and 32 on the inner side of the core 9; spaces 31 and 33 on the outer side of the stator core 9; coil end portions on the upper side in the axial direction; and coil end portions on the lower side in the axial direction. Therefore, in the side having the intersection, since the coil region in the layer direction is enlarged, the intersections can be arranged in the spaces 31 and 33 outside the stator core 9 and the coil ends on the upper side and the lower side in the axial direction.
(效果)(effect)
如上所述之說明,依據本實施形態,在整列線圈時將交差點配置在除了定子鐵心9的內側的空間30、32以外的空間。藉此,能夠縮小定子鐵心9的外型,並能提高效率及達到輕量化。As described above, according to the present embodiment, the intersection points are arranged in a space other than the spaces 30 and 32 inside the stator core 9 at the time of arranging the coils. Thereby, the outer shape of the stator core 9 can be reduced, and efficiency can be improved and weight reduction can be achieved.
另外,在實施形態1~3中,係將略四角狀的空間30、32的外側的各2個隅角的角度說明為略成90度,但本發明並不限定於此。例如,單側或兩側為120度亦可,在此情況下,也和隅角為約90度的情況一樣,容易將磁場線圈10配置為稻草包堆積狀。第9圖為在空間30及32中單方的角部為120度時的例子。在此情況下,在空間31、33中也是有單側的隅角為約120度。如上述,在單側的隅角為約120度的情況下,在整列線圈時,也可以容易地配置為稻草包堆積狀。Further, in the first to third embodiments, the angles of the two corners on the outer sides of the slightly square-shaped spaces 30 and 32 are described as being slightly 90 degrees, but the present invention is not limited thereto. For example, it may be 120 degrees on one side or both sides. In this case, as in the case where the corner angle is about 90 degrees, the field coil 10 is easily arranged in a straw pack. Fig. 9 is an example of a case where the corners of one of the spaces 30 and 32 are 120 degrees. In this case, there is also a one-sided corner angle of about 120 degrees in the spaces 31, 33. As described above, when the corner angle of one side is about 120 degrees, it is also possible to easily arrange the straw pack when the coil is aligned.
在此說明將實施形態1~4中說明的電動送風機1實際使用在製品的情況。第10圖為具有電動送風機的電動吸塵器的斷面圖。電動吸塵器包括:將外部氣體吸入吸塵器本體41的吸入口42、將已吸入的外部氣體中的粉塵集中的集塵部43、將已吸入的外部氣體排出的排出口44、產生使得外部氣體從吸入口42吸入並從排出口44排出的空氣流的電動送風機1,從吸入口42被吸入的空氣經過集塵部43、電動送風機1、排出口44而排出到吸塵器本體41的外部。如此,藉由將電動送風機1安裝在電動吸塵器中,就能夠使電動吸塵器也能達到效率提高及輕量化。另外,係說明將電動送風機使用於電動吸塵器的情況以作為一個例子,但本發明並不限定於此,電動送風機1也可以安裝在其他的製品上。Here, the case where the electric blower 1 described in the first to fourth embodiments is actually used in the product will be described. Figure 10 is a cross-sectional view of an electric vacuum cleaner having an electric blower. The electric vacuum cleaner includes a suction port 42 that sucks outside air into the cleaner body 41, a dust collecting portion 43 that collects dust in the sucked outside air, and a discharge port 44 that discharges the sucked outside air, and generates external air from the suction. The air blower 1 that sucks the air flow discharged from the discharge port 44 and the air blown from the suction port 42 passes through the dust collecting portion 43, the electric blower 1, and the discharge port 44, and is discharged to the outside of the cleaner body 41. As described above, by mounting the electric blower 1 in the electric vacuum cleaner, the electric vacuum cleaner can also achieve efficiency improvement and weight reduction. Further, the case where the electric blower is used for the electric vacuum cleaner is described as an example, but the present invention is not limited thereto, and the electric blower 1 may be attached to another product.
(構成)(constitution)
關於實施形態2的第6圖到第8圖所示的定子鐵心9,較佳為:2個C字形狀部9A及9B的和轉子8相對的左端部9Aa、右端部9Be以及右端部9Ae、左端部9Ba,將在其尖端部分的徑方向的寬度擴大並使其抵接。在第11圖中顯示適用的例,在第12圖中顯示將第11圖的抵接部放大後的狀態。第11圖及第12圖和第6圖一樣是從軸方向觀看定子鐵心9的圖,為表示本實施形態的定子鐵心9的形狀之圖。在第11圖及第12圖中所示之虛線,係表示在尖端部分的徑方向的寬度未擴大之情況下的輪廓。所謂未擴大之情況,係為和實施形態2的第6圖一樣。在C字形狀部9A中,在右端部9Ae側已擴大的部分作為右擴大部9Af,左端 部9Aa側已擴大的部分作為左擴大部9Ag。同樣地,在C字形狀部9B中,在右端部9Be側已擴大的部分作為右擴大部9Bf,左端部9Ba側已擴大的部分作為左擴大部9Bg。以下,在不特別區分的情況下,將右擴大部9Af、左擴大部9Ag、右擴大部9Bf、左擴大部9Bg稱之為擴大部。另外,在2個C字形狀部9A及9B中,和包括擴大部的其他的C字形狀部相接的部分為抵接部。In the stator core 9 shown in FIGS. 6 to 8 of the second embodiment, it is preferable that the left end portion 9Aa, the right end portion 9Be, and the right end portion 9Ae of the two C-shaped portions 9A and 9B facing the rotor 8 are The left end portion 9Ba expands and abuts the width in the radial direction of the tip end portion thereof. An example of application is shown in Fig. 11, and a state in which the abutting portion of Fig. 11 is enlarged is shown in Fig. 12. 11 and FIG. 12 and FIG. 6 are views showing the stator core 9 viewed from the axial direction, and are views showing the shape of the stator core 9 of the present embodiment. The broken line shown in Figs. 11 and 12 indicates the outline in the case where the width of the tip end portion in the radial direction is not enlarged. The case of the non-expansion is the same as the sixth figure of the second embodiment. In the C-shaped portion 9A, the portion that has been enlarged on the right end portion 9Ae side is the right enlarged portion 9Af, and the left end The enlarged portion of the portion 9Aa side serves as the left enlarged portion 9Ag. Similarly, in the C-shaped portion 9B, the enlarged portion on the right end portion 9Be side serves as the right enlarged portion 9Bf, and the enlarged portion on the left end portion 9Ba side serves as the left enlarged portion 9Bg. Hereinafter, the right enlarged portion 9Af, the left enlarged portion 9Ag, the right enlarged portion 9Bf, and the left enlarged portion 9Bg are referred to as enlarged portions unless otherwise specified. Further, in the two C-shaped portions 9A and 9B, a portion that is in contact with another C-shaped portion including the enlarged portion is a contact portion.
在定子鐵心9中,也可以用例如溶接或黏著等方式將包含C字形狀部9A的左擴大部9Ag之抵接部和包含C字形狀部9Ba的右擴大部9Bf的抵接部的兩側固接。同樣地,也可以用例如溶接或黏著等方式將包含C字形狀部9A的右擴大部9Af之抵接部和包含C字形狀部9B的左擴大部9Bg的抵接部的兩側固接。In the stator core 9, both sides of the abutting portion including the left enlarged portion 9Ag of the C-shaped portion 9A and the abutting portion including the right enlarged portion 9Bf of the C-shaped portion 9Ba may be used, for example, by welding or adhesion. Secured. Similarly, both sides of the abutting portion including the right enlarged portion 9Af of the C-shaped portion 9A and the abutting portion of the left enlarged portion 9Bg including the C-shaped portion 9B may be fixed by, for example, welding or adhesion.
在第11圖所示的定子鐵心9中,在2個C字形狀部9A及9B中的磁束線圖和第8圖相同。如第6圖及第7圖所示,為了要輕量化,基於磁束線的條數在徑方向的寬度設定C字形狀部9A的左端部9Aa及右端部9Ae的形狀、C字形狀部9B的左端部9B及右端部9Be的形狀,則在鐵心分割位置25a、25b上的徑方向的寬度接近0,2個C字形狀部9A及9B的和轉子8相對左端部9Aa和右端部9Be、以及右端部9Ae和左端部9Ba的尖端部分是尖的。在尖端部分是尖的情況下,2個C字形狀部9A及9B即使抵接其剛性也很低,另外,將抵接部溶接時其溶接深度不足,在黏著時則黏著的面積不足。抵接部分的徑方向的寬度,必須要有基於必要的剛性所決定的尺寸。In the stator core 9 shown in Fig. 11, the magnetic flux diagrams in the two C-shaped portions 9A and 9B are the same as those in Fig. 8. As shown in FIG. 6 and FIG. 7, in order to reduce the weight, the shape of the left end portion 9Aa and the right end portion 9Ae of the C-shaped portion 9A and the shape of the C-shaped portion 9B are set in the radial direction width based on the number of the magnetic flux lines. The shapes of the left end portion 9B and the right end portion 9Be are closer to zero in the radial direction at the core division positions 25a and 25b, and the two C-shaped portions 9A and 9B and the rotor 8 are opposite to the left end portion 9Aa and the right end portion 9Be, and The tip end portions of the right end portion 9Ae and the left end portion 9Ba are pointed. When the tip end portion is pointed, the two C-shaped portions 9A and 9B are low in rigidity even when they are in contact with each other, and the joint depth is insufficient when the contact portion is melted, and the area to be adhered when the contact portion is adhered is insufficient. The width of the abutting portion in the radial direction must have a size determined based on the necessary rigidity.
(作用)(effect)
如第11圖及第12圖所示,在C字形狀部9A設有右擴大部9Af及左擴大部9Ag、在C字形狀部9B設有右擴大部9Bf及左擴大部9Bg,使用確保和其他的C字形狀部的連接面積並變大的抵接部,藉此,能夠提高C字形狀部9A及9B的剛性。另外,使抵接部固接時,更在提高剛性之外,能夠將2個C字形狀部9A及9B作為1個元件來進行操作。As shown in Fig. 11 and Fig. 12, the C-shaped portion 9A is provided with a right enlarged portion 9Af and a left enlarged portion 9Ag, and the C-shaped portion 9B is provided with a right enlarged portion 9Bf and a left enlarged portion 9Bg. The contact portion of the other C-shaped portion is increased in contact area, whereby the rigidity of the C-shaped portions 9A and 9B can be improved. Further, when the abutting portion is fixed, the two C-shaped portions 9A and 9B can be operated as one element in addition to the rigidity.
如第11圖所示,C字形狀部9A的形狀,為將和轉子8相對的部分之徑方向的寬度,從肩部9Ab、腕部9Ac、肩部9Ad的3個直線部向鐵心分割位置25a、25b的方向縮小,在徑方向的寬度已縮小的尖端的部分,設置徑方向的寬度大於徑方向的寬度已縮小的尖端部分的寬度的抵接部,但並不以此為限。關於抵接部的徑方向的寬度,也可以為:使得和轉子8相對的部分的徑方向的寬度,相同於向各鐵心分割位置25a、25b縮小後的尖端的部分的寬度。上述已針對C字形狀部9A進行說明,C字形狀部9B的部分也是一樣。As shown in Fig. 11, the shape of the C-shaped portion 9A is the width in the radial direction of the portion facing the rotor 8, and is divided from the three straight portions of the shoulder portion 9Ab, the wrist portion 9Ac, and the shoulder portion 9Ad to the core. The direction of the 25a and 25b is reduced, and the portion of the tip end having a reduced width in the radial direction is provided with a larger width in the radial direction than the width of the tip end portion having a reduced width in the radial direction, but is not limited thereto. The width of the contact portion in the radial direction may be such that the width of the portion facing the rotor 8 in the radial direction is the same as the width of the portion of the tip that is reduced to the respective core division positions 25a and 25b. The above description has been made for the C-shaped portion 9A, and the portion of the C-shaped portion 9B is also the same.
(效果)(effect)
依據本實施形態,2個C字形狀部9A及9B設有擴大部,使用包含擴大部的抵接部以和其他的C字形狀部抵接。藉此,提高C字形狀部9A及9B的剛性,並能夠達成在包含定子鐵心9的電動送風機1中的噪音和震動的減少。另外,將2個C字形狀部9A及9B作為1個元件來進行操作,藉此能夠達成製造成本的降低。According to the present embodiment, the two C-shaped portions 9A and 9B are provided with enlarged portions, and the abutting portions including the enlarged portions are in contact with the other C-shaped portions. Thereby, the rigidity of the C-shaped portions 9A and 9B is increased, and the noise and vibration in the electric blower 1 including the stator core 9 can be reduced. Further, by operating the two C-shaped portions 9A and 9B as one element, it is possible to achieve a reduction in manufacturing cost.
(構成)(constitution)
在實施形態6中,在2個C字形狀部9A及9B中設置包含擴大部的抵接部,抵接部的形狀為設置燕尾狀(dovetail)的凹部和凸部並彼此嵌合為佳。在第13圖中顯示適用之例,在第14圖中顯示將第13圖的抵接部放大後的狀態。第13圖及第14圖和第6圖一樣是從軸方向觀看定子鐵心9的圖,為表示本實施形態的定子鐵心9的形狀之圖。在第13圖及第14圖中所示之虛線,係表示在尖端部分的徑方向的寬度未擴大之情況下的輪廓。在此,在C字形狀部9A中,在包含右擴大部9Af的抵接部設置凹部,在包含左擴大部9Ag的抵接部設置凸部。同樣地,在C字形狀部9B中,在包含右擴大部9Bf的抵接部設置凹部,在包含左擴大部9Bg的抵接部設置凸部。In the sixth embodiment, the two C-shaped portions 9A and 9B are provided with abutting portions including the enlarged portions, and the shape of the abutting portions is preferably a dovetail-shaped concave portion and a convex portion. An example of application is shown in Fig. 13, and a state in which the abutting portion of Fig. 13 is enlarged is shown in Fig. 14. Similarly to the fourteenth and fourteenth drawings, the stator core 9 is viewed from the axial direction, and is a view showing the shape of the stator core 9 of the present embodiment. The broken line shown in Figs. 13 and 14 indicates the outline in the case where the width of the tip end portion in the radial direction is not enlarged. Here, in the C-shaped portion 9A, a concave portion is provided in the abutting portion including the right enlarged portion 9Af, and a convex portion is provided in the abutting portion including the left enlarged portion 9Ag. Similarly, in the C-shaped portion 9B, a concave portion is provided in the abutting portion including the right enlarged portion 9Bf, and a convex portion is provided in the abutting portion including the left enlarged portion 9Bg.
在定子鐵心9中,也可以用例如溶接或黏著等方式將包含C字形狀部9A的左擴大部9Ag之抵接部和包含C字形狀部9B的右擴大部9Bf的抵接部的兩側固接。同樣地,也可以用例如溶接或黏著等方式將包含C字形狀部9A的右擴大部9Af之抵接部和包含C字形狀部9B的左擴大部9Bg的抵接部的兩側固接。In the stator core 9, both sides of the abutting portion including the left enlarged portion 9Ag of the C-shaped portion 9A and the abutting portion including the right enlarged portion 9Bf of the C-shaped portion 9B may be fused or adhered, for example. Secured. Similarly, both sides of the abutting portion including the right enlarged portion 9Af of the C-shaped portion 9A and the abutting portion of the left enlarged portion 9Bg including the C-shaped portion 9B may be fixed by, for example, welding or adhesion.
(作用)(effect)
如第13圖及第14圖所示,在2個C字形狀部9A及9B中係構成為,包含擴大部的抵接部的形狀為燕尾狀的凹部和凸部,在其他的C字形狀部抵接時凹部和凸部嵌合,藉此能夠提高C字形狀部9A及9B的剛性,而且能夠將2個C字形狀部9A及9B作為1個元件來進行操作。另外,能夠使C字形狀部9A及9B的和轉子8相對的同軸容易移出。As shown in Fig. 13 and Fig. 14, the two C-shaped portions 9A and 9B are configured such that the abutting portion including the enlarged portion has a dovetail-shaped concave portion and a convex portion, and is in other C-shapes. When the concave portion and the convex portion are fitted to each other, the rigidity of the C-shaped portions 9A and 9B can be improved, and the two C-shaped portions 9A and 9B can be operated as one element. Further, the coaxiality of the C-shaped portions 9A and 9B facing the rotor 8 can be easily removed.
(效果)(effect)
依據本實施形態,使2個C字形狀部9A及9B抵接部的形狀為燕尾狀的凹部和凸部。藉此,能夠提高C字形狀部9A及9B的剛性,並能夠達成在包含定子鐵心9的電動送風機1中的噪音和震動的減少。另外,將2個C字形狀部9A及9B作為1個元件來進行操作,且能夠使和轉子8相對的同軸容易移出,藉此能夠提高生產性並達成製造成本的降低。According to the present embodiment, the shape of the abutting portions of the two C-shaped portions 9A and 9B is a dovetail-shaped concave portion and a convex portion. Thereby, the rigidity of the C-shaped portions 9A and 9B can be improved, and the noise and vibration in the electric blower 1 including the stator core 9 can be reduced. In addition, the two C-shaped portions 9A and 9B are operated as one element, and the coaxiality with respect to the rotor 8 can be easily removed, whereby productivity can be improved and manufacturing cost can be reduced.
如上述,本發明的電動送風機,適用於空氣之送風,尤其是適用於電動吸塵器等。As described above, the electric blower of the present invention is suitable for air supply of air, and is particularly suitable for use in an electric vacuum cleaner or the like.
9A、9B‧‧‧C字形狀部9A, 9B‧‧‧C shape parts
9Aa、9Ba‧‧‧左端部9Aa, 9Ba‧‧‧ left end
9Ab、9Ad、9Bb、9Bd‧‧‧肩部9Ab, 9Ad, 9Bb, 9Bd‧‧‧ shoulders
9Ac、9Bc‧‧‧腕部9Ac, 9Bc‧‧‧ wrist
9Ae、9Be‧‧‧右端部9Ae, 9Be‧‧‧Right end
25a、25b‧‧‧鐵心分割位置25a, 25b‧‧‧core division position
26a、26b‧‧‧磁極26a, 26b‧‧‧ magnetic pole
30、31、32、33‧‧‧空間30, 31, 32, 33‧‧‧ space
35‧‧‧磁極中心線35‧‧‧Magnetic center line
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2013/068538 WO2015001670A1 (en) | 2013-07-05 | 2013-07-05 | Electric fan and electric vacuum cleaner |
PCT/JP2014/065877 WO2015001945A1 (en) | 2013-07-05 | 2014-06-16 | Electric fan and electric vacuum cleaner |
Publications (2)
Publication Number | Publication Date |
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TW201528655A TW201528655A (en) | 2015-07-16 |
TWI506923B true TWI506923B (en) | 2015-11-01 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW103122024A TWI506923B (en) | 2013-07-05 | 2014-06-26 | Electric blowers and electric vacuum cleaners |
Country Status (4)
Country | Link |
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JP (1) | JP5976218B2 (en) |
CN (1) | CN105324579B (en) |
TW (1) | TWI506923B (en) |
WO (2) | WO2015001670A1 (en) |
Cited By (1)
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TWI673031B (en) * | 2015-04-01 | 2019-10-01 | 日商三菱電機股份有限公司 | Electric vacuum cleaner |
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KR101660749B1 (en) | 2015-07-28 | 2016-10-10 | 엘지전자 주식회사 | Robot Cleaner |
ES2965608T3 (en) * | 2016-03-31 | 2024-04-16 | Lg Electronics Inc | cleaning device |
KR102603585B1 (en) * | 2016-05-09 | 2023-11-20 | 엘지전자 주식회사 | Charging device for cleaner |
CN109586426A (en) * | 2017-09-29 | 2019-04-05 | 广东朗科智能电气有限公司 | Motor of dust collector and its motor stator |
KR102428968B1 (en) * | 2021-12-03 | 2022-08-04 | 주진 | Electric motor having advantages of toroidal winding motor and slotless motor, and manufacturing method thereof |
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- 2014-06-16 WO PCT/JP2014/065877 patent/WO2015001945A1/en active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
JPWO2015001945A1 (en) | 2017-02-23 |
WO2015001945A1 (en) | 2015-01-08 |
CN105324579B (en) | 2017-05-03 |
JP5976218B2 (en) | 2016-08-23 |
WO2015001670A1 (en) | 2015-01-08 |
TW201528655A (en) | 2015-07-16 |
CN105324579A (en) | 2016-02-10 |
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