CN102146937A - Electric dust collector - Google Patents
Electric dust collector Download PDFInfo
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- CN102146937A CN102146937A CN2011100355170A CN201110035517A CN102146937A CN 102146937 A CN102146937 A CN 102146937A CN 2011100355170 A CN2011100355170 A CN 2011100355170A CN 201110035517 A CN201110035517 A CN 201110035517A CN 102146937 A CN102146937 A CN 102146937A
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Abstract
本发明的课题是提供一种在电动鼓风机的壳体上安装有罩的电动吸尘器，该电动吸尘器能够发挥优良的吸入功率。本发明的电动吸尘器在电动鼓风机(20)的风扇壳体(21)上与形成有吸入口的前面相反侧的后面具有第二排气口(28)，在以马达的旋转轴(35)为中心相对于马达的刷(33)的形成位置大致90度的位置(P)，罩(16)的外周端的位置设定在比第二排气口(28)的内周端的位置更靠旋转轴(35)。
An object of the present invention is to provide an electric vacuum cleaner in which a cover is attached to a case of an electric blower and which can exhibit excellent suction power. The electric vacuum cleaner of the present invention has a second exhaust port (28) on the fan casing (21) of the electric blower (20) on the opposite side to the front side where the suction port is formed, and the rotation shaft (35) of the motor is The center is at a position (P) of approximately 90 degrees relative to the brush (33) of the motor, and the position of the outer peripheral end of the cover (16) is set closer to the rotation axis than the position of the inner peripheral end of the second exhaust port (28). (35).
Description
Technical field
The present invention relates to possess the electric dust collector of electric blower.
Background technique
Generally speaking, the electric blower of electric dust collector holds motor and constitutes with the fan that is connected with the running shaft of this motor in housing.The external diameter fan bigger than the external diameter of motor is installed in this electric blower, and housing forms: the blower-casting that the motor casing and being used to that is used to hold the drum of motor holds drum fan, that diameter is bigger than motor casing becomes one.
And, being configured in its fan side of electric blower in the main body of dust collector has the flexible pipe of suction inlet body towards connection the front side configuration of main body of dust collector, motor-side is towards the rear side configuration of main body of dust collector.
In this electric dust collector, if motor starting and make fan rotation, then fan is drawn into air in the blower-casting from being formed at suction port before the blower-casting (so-called ball portion), and from the relief opening exhausting air at the rear portion that is formed at motor casing.Thus, electric dust collector is drawn into air in the main body by suction inlet body and flexible pipe, and the rubbish that will follow inhaled air is discharged air in the housing of electric blower by relief opening behind the paper bag or the separation of cyclone separator chamber of regulation outside the main body of electric blower.
Yet, generally in the housing of regulation, possess in the various industrial equipments of motor, for noise and the vibration that reduces motor, the cover that is made of foaming body is set on housing sometimes.Therefore, in the electric blower of electric dust collector, also wish around motor casing, to be provided with cover.
On the other hand, electric dust collector is in recent years compared the further height outputization that has realized motor with electric dust collector in the past, and motor can realize surpassing the high speed rotating of 40000rpm.And electric dust collector also needs to suppress the exhaust resistance of electric blower lower, fully to reflect the achievement of this motor.
In the past, electric dust collector as the exhaust resistance that reduces electric blower, as mentioned above, known have possess relief opening (following sometimes this relief opening is called " first relief opening ") at the rear portion of motor casing, and the structure (for example, with reference to patent documentation 1, patent documentation 2 and patent documentation 3) that on blower-casting, possesses relief opening (following sometimes this relief opening is called " second relief opening ").If more specifically describe, then in the electric blower of these electric dust collectors, in blower-casting and the back front opposition side that is formed with suction port, just with from the continuous step portion of the blower-casting of motor casing enlarged, circumferentially dispose a plurality of second relief openings along it.
According to this electric blower, because being drawn into air in the blower-casting from suction port flows in motor casing and discharges from first relief opening, and also discharge, therefore can guarantee the air discharge path of both direction from second relief opening that is formed on the blower-casting.Therefore, according to the electric dust collector that possesses this electric blower, reduced the exhaust resistance of electric blower, thereby can improve suction power.
Patent documentation
Patent documentation 1: Japanese kokai publication hei 3-105099 communique
Patent documentation 2: Japanese kokai publication hei 10-26099 communique
Patent documentation 3: TOHKEMY 2005-201157 communique
Yet, might produce following problem if above-mentioned cover is set on the electric blower that is provided with second relief opening on the blower-casting.Then will reference Fig. 8 be illustrated in the stereogram that the appearance of cover is installed on the electric blower of electric dust collector in the past.
As shown in Figure 8, be installed in the cover 16 cylindrical shapes on the electric blower 20 in the past, this cylinder has the internal diameter bigger than the external diameter of motor casing 22, as among Fig. 8 with shown in the double dot dash line like that, dispose in the mode of the outer circumferential face that surrounds motor casing 22.
Also has the state of the monomer before above Fig. 8, representing to dispose with the cover shown in the solid line 16.
Should cover 16, in order to reduce the vibration and the noise of the motor (omitting diagram) that is contained in the motor casing 22 more reliably, this cover 16 is configured to as much as possible outer circumferential face driving fit with motor casing 22, but, then can hinder the discharge of air from first exhaust port 27 if make the outer circumferential face driving fit of cover 16 and motor casing 22.That is to say that the exhaust resistance of the electric blower 20 of electric dust collector increases, can not give full play to the suction power that the output with motor matches.Therefore, if between the outer circumferential face of cover 16 inner peripheral surface and motor casing 22, to guarantee that the mode of distance disposes cover 16, then can produce the new problem that obstruction is formed at second relief opening 28 on the blower-casting 21 and so on.That is to say that electric dust collector sucks power and reduces owing to the 28 blocked exhaust resistance increases that cause electric blower 20 of second relief opening.
Summary of the invention
Therefore, problem of the present invention provides a kind of electric dust collector that cover is installed on the housing of electric blower, and this electric dust collector can be brought into play good suction power.
The electric dust collector of the present invention that has solved above-mentioned problem possesses electric blower, and this electric blower has: motor; The fan that is connected and has the external diameter bigger with the running shaft of said motor than the external diameter of said motor; Cover the housing of said motor and said fans; And the cover that covers the periphery of the part corresponding above-mentioned housing with allocation position said motor, this electric dust collector is characterised in that, above-mentioned housing has through hole with the back of the front opposition side of the suction port that is formed with said fans in the part corresponding with allocation position said fans above-mentioned housing, at the running shaft with said motor is the center with respect to the positions of 90 degree roughly, the formation position of the brush of said motor, the set positions of the outer circumference end of above-mentioned cover than the position of the interior Zhou Duan of above-mentioned through hole more by above-mentioned running shaft.
Effect of the present invention is as follows.
According to the present invention, a kind of electric dust collector can be provided, it can attract aspect of performance fully to reflect the achievement of the electric blower of having realized high outputization in recent years.
Description of drawings
Fig. 1 is the stereoscopic figure of the electric dust collector of embodiments of the present invention.
Fig. 2 is the longitudinal section of the main body of dust collector of electric dust collector shown in Figure 1.
Fig. 3 is the half of longitudinal section of the electric blower of electric dust collector shown in Figure 1.
Fig. 4 is illustrated in the stereogram that the appearance of cover is installed on the electric blower of electric dust collector shown in Figure 1.
The rear view of the electric blower of the configuration of the cover that Fig. 5 is expression when rear side is observed the electric blower of Fig. 4.
Fig. 6 is the pattern side view of first variation of the electric blower in the electric dust collector of the present invention.
Fig. 7 is the stereogram of second variation of the electric blower in the electric dust collector of the present invention.
Fig. 8 is the stereogram that the appearance of cover is installed on the electric blower that is illustrated in the past.
Among the figure:
The 10-electric dust collector, 16-cover, 16a-matrix, 16b-reinforce belt, 18-notch, the 20-electric blower, 21-blower-casting, 22-motor casing, 23-wind pushing mechanism, 24-centrifugal cutter, the 25-diffuser, 26-suction port, 27-first relief opening, 27a-first relief opening, 27b-first relief opening, 28-second relief opening, 29-step portion, 30-motor, 31-stator, 33-brush, the 34-bearing, 35-running shaft, 37-commutator, 38-brush carrier, the C-shell, MD-external diameter, LD-major diameter, SD-minor axis.
Embodiment
Below, with reference to suitable accompanying drawing embodiments of the present invention are elaborated.
Also have, fore-and-aft direction in the following description is a benchmark with the fore-and-aft direction of main body of dust collector shown in Figure 1 201.
As shown in Figure 1, the electric dust collector 10 of present embodiment constitutes, possess and described later electric blower 20 (with reference to Fig. 2) is contained in inboard main body of dust collector 201, and be connected with flexible pipe 202 in turn in the front side of this main body of dust collector 201, handle operation portion 203, prolong pipe 204, suction inlet body 205.
Also have, among Fig. 1, symbol 206 is arranged in the handle operation portion 203 and is used for the switching manipulation portion of break-make electric blower 20 (with reference to Fig. 2).
As shown in Figure 2, the front side of main body of dust collector 201 in the shell C of regulation is divided into dust precipitation chamber 12, and is divided into electric blower chamber 15 at rear side.This dust precipitation chamber 12 and electric blower chamber 15 are communicated with by filter part 14.
In dust precipitation chamber 12, accommodate paper bag 13.The opening of this paper bag 13 is configured to be positioned at hose coupling 11 sides that connect flexible pipe 202 (with reference to Fig. 1).
And, in the electric dust collector 10 of present embodiment, the mode of using paper bag 13 is illustrated, but the present invention also can be the electric dust collector of cyclone separator mode.That is, the electric dust collector of cyclone separator mode is formed with the cyclone separator chamber in the part corresponding with dust precipitation chamber 12.
In electric blower chamber 15, accommodate electric blower 20.This electric blower 20 is configured to be formed at the aftermentioned suction port 26 of its front side towards filter part 14 sides (front side of main body of dust collector 201), and, first relief opening 27 described later is suspended in the electric blower chamber 15 by vibration-proof rubber 17 towards the rear end side of electric blower chamber 15.
As described later, cover 16 (with reference to Fig. 4) are installed on this electric blower 20, but in Fig. 2,, have omitted the record of cover for the ease of drawing.
As shown in Figure 3, electric blower 20 constitutes: wind pushing mechanism 23 is contained in the blower-casting 21, and motor 30 is contained in the motor casing 22.
Links such as centrifugal cutter 24 usefulness nuts are fixed on the running shaft 35 of motor 30 described later, by the motor 30 that started around running shaft 35 rotations.The external diameter of the centrifugal cutter 24 in the present embodiment is bigger than the external diameter of motor 30.
Diffuser 25 comprises: be configured in the diffuser vane 25a on the centrifugal direction of centrifugal cutter 24; And the ball-returning device blade 25c that is configured in this diffuser vane 25a rear by demarcation strip 25b.
As shown in Figure 3, motor 30 constitute possess stator 31, armature 32, the brush 33.
In addition, the mode that has a predetermined gap with the outer circumferential face of the inner peripheral surface of stator core 31a and armature core 40 disposes.
Brush 33 is provided with a pair of in the motor 30 of present embodiment in the mode that clips commutator 37, this a pair of brush 33 is maintained on the brush carrier 38 that is installed on motor casing 22 rear portions described later.And brush 33 can slide and contact with respect to the commutator 37 with running shaft 35 rotations, and is electrically connected with the field coil 31b of stator 31.
In this motor 30, if apply commercial ac voltage between the not shown terminal of this motor 30, then motor current flows to brush 33 by field coil 31b.And electric current flows to the armature coil 36 of armature 32 by brushing 33 with the sliding contact of commutator 37.At this moment, by based on the rectified action of commutator 37 and the interaction of the magnetic flux that on stator 31 and armature 32, produces respectively, armature 32 in the inboard of stator 31 to be rotated with corresponding predetermined rotational speed of the size of motor current and torque.
Blower-casting 21 and motor casing 22 form external diameter different general cylindrical shape shape mutually, and the external diameter of blower-casting 21 is bigger than the external diameter of motor casing 22.
As Fig. 3～shown in Figure 5, on motor casing 22, be formed with four first relief openings 27 (27a, 27a, 27b, 27b).This through hole that this first relief opening 27 is equivalent to is said in the protection domain of technological scheme " being formed at the above-mentioned through hole on the outer circumferential face of the part corresponding with allocation position said motor above-mentioned housing ".And in Fig. 3 to Fig. 5, symbol 16 is the covers that describe in detail below.
As Fig. 4 and shown in Figure 5, the first relief opening 27a forms, at the rear portion of motor casing 22 respectively with a pair of brush carrier 38,38 adjacency.Specifically, the first relief opening 27a, 27a form from the side face of motor casing 22 and cross ear end face.
In addition, as shown in Figure 3, the side face opening that the first relief opening 27b forms at motor casing 22 is a rectangle, and as shown in Figure 5, to be formed on the side face of motor casing 22 by the mode that clips brush carrier 38 with the above-mentioned first relief opening 27a.
As shown in Figure 3, on blower-casting 21, be formed with above-mentioned suction port 26 in its front.This suction port 26 is also referred to as so-called ball portion.
In addition, on blower-casting 21,, be formed with second relief opening 28 of circular-arc slotted hole in the back of an opposite side with the front that is formed with suction port 26.If illustrate in greater detail, then as Fig. 4 and shown in Figure 5, this second relief opening 28 is formed at and from the continuous step portion 29 of the blower-casting 21 of motor casing 22 enlarged.And that second relief opening 28 is equivalent to is said in the protection domain of technological scheme " being formed with through hole in the back with the front opposition side of the inlet hole that is formed with fan " should " through hole ".
As shown in Figure 5, second relief opening 28 in the present embodiment forms along the slotted hole of the slit-shaped of the extending circumferentially of blower-casting 21, become at center 39 with respect to the running shaft 35 of motor (with reference to Fig. 3) form on the mutual point-symmetric position a pair of.And if observe from running shaft 35 directions of motor 30, then the position of second relief opening 28,28 becomes the roughly position of 90 degree of phase deviation with respect to the position of a pair of brush carrier 38,38.
In addition, if observe from running shaft 35 directions of motor 30, then second relief opening 28,28 is formed on the position in addition, formation position of brush 33.In other words, from the end on observation of the running shaft 35 of motor 30, second relief opening 28,28 forms in the mode of the profile of avoiding brush carrier 38.
Promptly, the shape and the quantity of second relief opening 28 is not particularly limited, its shape can form circle, ellipse, polygonal etc., its quantity can be more than three.For example, be under the situation of circle at second relief opening 28, preferably on same circumference, form a plurality of.In addition, for example, under the situation of second relief opening 28 that forms four circular-arc slotted holes, be preferably formed on same circumference, be formed at the phase place non-migration and roughly be advisable on 90 positions of spending.Its result owing to roughly be formed with supporting mechanism on 90 positions of spending in phase deviation, therefore suppresses the distortion of second relief opening 28, can improve the intensity of step portion 29.
Secondly, describe covering 16.
As Fig. 4 and shown in Figure 5; cover 16 is surrounding motor casing 22 cylinder that disposes of the mode of the side face of " with the allocation position corresponding shell part of motor " described in the protection domain of technological scheme just, with the sectional view of running shaft 35 (with reference to Fig. 5) quadrature of motor 30 in be the substantially elliptical shape.
Promptly, as shown in Figure 5, be installed in the inboard that brush carrier 38 on the motor casing 22 is positioned at the cover 16 of substantially elliptical shape.In other words, the major diameter LD in the interior week of cover 16 is bigger than the external width W of brush 33 (brush carriers 38).Therefore, leaving predetermined distance ground near the inner peripheral surface that is formed at the first relief opening 27a, 27b on the motor casing 22 and cover 16 brush carrier 38 is covered by cover.
In addition, cover 16 is set at, under the state that is disposed on the motor casing 22, as shown in Figure 5, at the running shaft 35 with motor 30 (with reference to Fig. 3) is the center with respect to the positions (P among Fig. 5) of 90 degree roughly, the formation position of brush 33 (brush carriers 38), the position of the outer circumference end of cover 16 than the position of the interior Zhou Duan of second relief opening 28 more by running shaft 35 (close interior week).That is to say that at " the roughly position P of 90 degree ", the whole slit width of second relief opening 28 is positioned at the outside of the outer circumference end of cover 16.
And, in formation position " the roughly position P of 90 degree " with respect to brush 33 (brush carriers 38), the inner peripheral surface of cover 16 and the outer circumferential face of motor casing 22 join, therefore, the minor axis SD in the interior week of the cover in the present embodiment 16 be the center with the running shaft 35 of motor 30 about equally with respect to the external diameter MD of the motor casing 22 on the formation position " the roughly 90 position P that spend " of brush 33 (brush carriers 38).Promptly, the minor axis SD in cover interior week of 16 also can be at " the roughly position P of 90 degree ", becoming the position than the interior Zhou Duan of second relief opening 28 with the set positions of covering 16 outer circumference end is condition by running shaft 35 more, surpasses the external diameter MD of motor casing 22.In other words, cover 16 thickness is than thin to the difference of the length L 2 of the outer circumferential face of motor casing 22 with the center 39 from the running shaft 35 of motor 30 from the length L 1 of the interior Zhou Duan of center 39 to second relief openings 28 of the running shaft 35 of motor 30.Cover 16 thickness also can be inhomogeneous, and the part corresponding with second relief opening 28 is thin, and the part corresponding with brush 33 (brush carriers 38) is thick, thereby inhomogeneous also passable.
That is to say that the cover 16 in the present embodiment will be guaranteed more than the ratio of regulation at the opening area of second relief opening 28 outside it.As the ratio of this regulation, wish at the opening area of second relief opening 28 in the outside of cover 16 with respect to the ratio of whole opening areas of second relief opening 28 more than 50% and below 100%.Explanation in passing by being 100%, thereby becomes maximum by the air displacement of second relief opening 28.
Above cover 16 comprises: the panel-shaped base body 16a with predetermined thickness that is made of the foaming body of continuous air bubbles; And the reinforce belt 16b that disposes in the mode of the outer circumferential face that covers this matrix 16a.
Foaming body in the present embodiment uses the polyurethane foam of having implemented retardant treatment.As this foaming body, if having continuous air bubbles then be not particularly limited, hope is the elastomer with flame retardancy.
The material of reinforce belt 16b wherein especially wishes it is by weaving cotton cloth or nonwovens that glass fibre constitutes so long as have the intensity of regulation and flexible material just is not particularly limited.
When secondly, the action of the electric dust collector 10 of present embodiment being described action effect is described.
With regard to this electric dust collector 10, the centrifugal cutter 24 that the motor 30 by electric blower shown in Figure 3 20 is rotated makes to boost from suction port 26 inhaled airs and produces the suction air-flow.And the suction air communication is crossed diffuser 25 and is discharged by first relief opening 27 from the air channels in the motor casing 22, and discharges from second relief opening 28 of blower-casting 21.
On the other hand, suck air by electric blower 20 from suction port 26, electric dust collector 10 will follow the air of dust to guide in the dust precipitation chamber 12 from hose coupling 11 side draughts by above-mentioned suction inlet body 205 (with reference to Fig. 1) etc., follow the air of the dust that is inhaled into to be imported in the paper bag 13.And the air after being filtered by paper bag 13 sucks from the suction port 26 of electric blower 20 by filter part 14.At this moment, follow the major part of the dust that is inhaled into the air in the dust precipitation chamber 12 to remove, and pass through filter part 14, thereby tiny dust also is removed by air by paper bag 13.
And according to above electric dust collector 10, electric blower 20 is discharged from first relief opening 27 from suction port 26 inhaled airs as mentioned above, and also discharges from second relief opening 28, therefore can guarantee the discharge path of the air of both direction.Therefore, according to the electric dust collector 10 that possesses this electric blower 20, the exhaust resistance in the electric blower 20 reduces, and therefore can improve suction power.
In addition, according to this electric dust collector 10, with respect to the brush 33 (brush carriers 38) the formation position roughly 90 the degree position P (with reference to Fig. 5) on, the position of the outer circumference end of cover 16 is configured to more lean on running shaft 35 than the position of the interior Zhou Duan of second relief opening 28, therefore can guarantee that in the outside of cover 16 opening portion of second relief opening 28 is bigger.Therefore, according to this electric dust collector 10, can prevent to hinder from 28 exhausts of second relief opening.Its result, the exhaust resistance in the electric blower 20 can be suppressed lowlyer, thereby can improve the suction power of electric dust collector 10.
In addition, according to this electric dust collector 10, cover 16 thickness is than thin to the difference of the length L 2 of the outer circumferential face of motor casing 22 with the center 39 from the running shaft 35 of motor 30 from the length L 1 of the interior Zhou Duan of center 39 to second relief openings 28 of the running shaft 35 of motor 30, therefore can further guarantee at the opening portion of second opening 28 in cover 16 outsides bigger.Its result can further improve the suction power of electric dust collector 10.
In addition, according to this electric dust collector 10, major diameter LD by making cover interior week of 16 is bigger than the external width W of the locational motor 30 of formation of brush 33 (brush carriers 38), and the minor axis SD that makes cover interior week of 16 be the center with respect to the formation position of brush 33 (brush carriers 38) roughly more than the external diameter MD of the motor casing 22 among the position P of 90 degree at the running shaft 35 with motor 30, thereby can guarantee bigger space in the inboard of covering 16.Its result can suppress the exhaust resistance from first relief opening 27 lower, can improve the suction power of electric dust collector 10 thus more reliably.And at this moment, owing to become smooth and easy from the exhaust of first relief opening 27, high efficiency such as brush 33, commutator 37 ground is cooled, so the reduction of the resistance of these members, thereby also can improve the suction power of electric dust collector 10.
In addition, according to this electric dust collector 10, ratio at the opening area of second relief opening 28 in cover 16 the outside is more than 50%, is suppressed lowlyer from the exhaust resistance of second relief opening 28, therefore can improve the suction power of electric dust collector 10 more reliably.
In addition, the running shaft 35 that forms with motor 30 according to these electric dust collector 10, the second relief openings 28 is that extend in a circumferential direction at the center, so the suction air-flow that centrifugal cutter 24 produces is discharged from second relief opening 28 efficiently.Its result can improve the suction power of electric dust collector 10 more reliably.
In addition, according to this electric dust collector 10, be that the center is formed with a plurality of second relief openings 28 in a circumferential direction, so the suction air-flow that centrifugal cutter 24 produces is discharged from second relief opening 28 efficiently with the running shaft 35 of motor 30.Its result can improve the suction power of electric dust collector 10 more reliably.
In addition, according to this electric dust collector 10, observe from running shaft 35 directions of motor 30, second relief opening 28 is formed on the position in addition, formation position of brush 33 (brush carriers 38), mode with the profile of avoiding brushing 33 (brush carriers 38) forms, and therefore the air-flow of discharging from second relief opening 28 is with brush carrier 38 collision ground, discharge swimmingly.Its result owing to be suppressed lowlyer from the exhaust resistance of second relief opening 28, therefore can improve the suction power of electric dust collector 10 more reliably.
In addition, according to this electric dust collector 10,, when therefore reducing the noise of motor 30 and vibration efficiently, can utilize its vent ability to suppress the exhaust resistance of electric blower 20 lower because cover 16 is made of the material that comprises polyurethane foam.
In addition, according to this electric dust collector 10, because cover 16 covers first relief opening 27, even therefore for example Yin Mada 30 aging and cause commutator 37 during with respect to brush 33 sliding contacts just in case produce under the situation of spark, also can prevent that this spark from dispersing towards periphery from first relief opening 27 by covering 16.And, because leaving predetermined distance ground, cover 16 covers first relief opening 27, therefore can prevent to cover 16 exhausts that hinder from first relief opening 27.
More than embodiments of the present invention are illustrated, but the present invention is not limited to above-mentioned mode of execution, can implement with other variety of ways.In addition, below other mode of executions of the present invention are described, omit its detailed description for the constituting component note prosign identical with above-mentioned mode of execution.
Secondly, will reference Fig. 6 be the pattern side view of first variation of the electric blower in the electric dust collector of the present invention, be partly to cut away cover to represent from respect to the formation position of the brush carrier figure of the appearance of the observed electric blowers in position of 90 degree roughly.Fig. 7 is the stereogram of second variation of the electric blower in the electric dust collector of the present invention.
The electric blower 20 of the electric dust collector 10 of above-mentioned mode of execution has used parts that the bottom surface is made of the roughly cylindrical body of elliptical shape as cover 16, also can be cylinder (roughly oval frustum) the closer to the more little shape of blower-casting 21 diameters that are positioned at its front side but cover 16.Explanation in passing, though this cover 16 is not shown, the end edge of Fig. 6 is the elliptical shape (with reference to Fig. 5) identical with above-mentioned mode of execution.And the front-end edge of Fig. 6 is the circular shape, and girth is set at the outer perimeter of motor casing 22 roughly the same in it.Explanation in passing is 100% at the ratio of the opening area of second relief opening 28 of cover 16 outer circumferential side.
Also have, among Fig. 6, symbol 38 is brush carriers, and symbol 22 is motor casings, and symbol 27b (27) is first relief opening, and its shape also can be diameter continuous variation unlike trapezoidal, but the diameter shape that ladder ground changes as two rank, three rank.
As shown in Figure 7, in the electric blower 20 of second variation, cover 16 has been cut off the part with second relief opening, 28 adjacency.The notch 18 of cover 16 shown in Figure 7 forms the mode that the whole opening portion with second relief opening 28 exposes and cuts away cover 16, is stopped up by cover 16 but the present invention also can be the part of the opening portion of second relief opening 28.That is to say, wish that cover 16 exposes the opening of second relief opening 28 with the above-mentioned ratio more than 50%.
The shape of notch 18 is not particularly limited, and can enumerate the shape that is polygonal, ellipse, circle etc. when overlooking.And the quantity of notch 18 is not particularly limited, both can be to form a notch 18 with respect to one second relief opening 28, and also can be to form a notch 18 in the mode of crossing over respect to a plurality of second relief openings 28.And, the size of notch 18 can not be without exception by the shape decision of notch 18, but be under the situation of rectangle at notch 18, the height H 1 of wishing notch 18 is set at below half of covering 16 height H 2.
In addition, with regard to this cover 16 that is formed with notch 18, if do not form this notch 18 then the ratio that stops up second relief opening 28 both can be 100%, also can be surpass 0% and less than 100% between.
In addition, among Fig. 7, symbol 16a is a matrix, and symbol 16b is a reinforce belt, and symbol 21 is blower-castings, and symbol 22 is motor casings, and symbol 27a (27) is first relief opening, and symbol 38 is brush carriers.
According to the electric blower 20 of this second variation, can and cover 16 and guarantee irrespectively that with respect to the allocation position of second relief opening 28 the opening ratio of second relief opening 28 is bigger with cover 16 thickness.
Claims (11)
1. an electric dust collector possesses electric blower, and this electric blower has: motor; The fan that is connected and has the external diameter bigger with the running shaft of said motor than the external diameter of said motor; Cover the housing of said motor and said fans; And the cover that covers the periphery of the part corresponding with allocation position said motor above-mentioned housing, this electric dust collector is characterised in that,
Above-mentioned housing has through hole with the back of the front opposition side of the suction port that is formed with said fans in the part corresponding with allocation position said fans above-mentioned housing,
At the running shaft with said motor is the center with respect to the positions of 90 degree roughly, the formation position of the brush of said motor, the set positions of the outer circumference end of above-mentioned cover than the position of the interior Zhou Duan of above-mentioned through hole more by above-mentioned running shaft.
2. electric dust collector according to claim 1 is characterized in that,
The thickness ratio of above-mentioned cover is thin to the difference of the length of the outer circumferential face of above-mentioned housing and the part that allocation position said motor is corresponding with the rotating shaft center from said motor to the length of the interior Zhou Duan of above-mentioned through hole from the rotating shaft center of said motor.
3. electric dust collector according to claim 1 is characterized in that,
Above-mentioned cover has the substantially elliptical shape,
The slenderness ratio in the interior week of above-mentioned cover keeps the external width of brush carrier of above-mentioned brush big, and the minor axis in the interior week of above-mentioned cover is the center with respect to the formation position of above-mentioned brush roughly more than the external diameter of locational, above-mentioned housing corresponding with allocation position said motor the parts of 90 degree at the running shaft with said motor.
4. electric dust collector according to claim 1 is characterized in that,
The running shaft that above-mentioned through hole forms with said motor is that extend in a circumferential direction at the center.
5. electric dust collector according to claim 1 is characterized in that,
It is a plurality of that above-mentioned through hole is with the running shaft of said motor that the center is formed with in a circumferential direction.
6. electric dust collector according to claim 1 is characterized in that,
Observe from the direction along the running shaft of said motor, above-mentioned through hole is formed at the position beyond the formation position of brush of said motor.
7. electric dust collector according to claim 1 is characterized in that,
Above-mentioned cover is made of the material that comprises polyurethane foam.
8. electric dust collector according to claim 1 is characterized in that,
Above-mentioned housing has through hole on the outer circumferential face of the part corresponding with allocation position said motor above-mentioned housing,
Above-mentioned cover covers the periphery of above-mentioned through hole, and this through hole is formed on the outer circumferential face of the part corresponding with allocation position said motor above-mentioned housing.
9. electric dust collector according to claim 1 is characterized in that,
Above-mentioned cover is the cylinder that covers the periphery of the part corresponding with allocation position said motor above-mentioned housing, and is more little the closer to above-mentioned through hole diameter.
10. an electric dust collector possesses electric blower, and this electric blower has: motor; The fan that is connected and has the external diameter bigger with the running shaft of said motor than the external diameter of said motor; Cover the housing of said motor and said fans; And the cover that covers the periphery of the part corresponding with allocation position said motor above-mentioned housing, this electric dust collector is characterised in that,
Above-mentioned housing has through hole with the back of the front opposition side of the suction port that is formed with said fans in the part corresponding with allocation position said fans above-mentioned housing,
From the direction along the running shaft of said motor is end on observation, and the area that above-mentioned cover stops up above-mentioned through hole is roughly below 50% of the gross area of above-mentioned through hole.
11. an electric dust collector possesses electric blower, this electric blower has: motor; The fan that is connected and has the external diameter bigger with the running shaft of said motor than the external diameter of said motor; Cover the housing of said motor and said fans; And the cover that covers the periphery of the part corresponding with allocation position said motor above-mentioned housing, this electric dust collector is characterised in that,
Above-mentioned housing has through hole with the back of the front opposition side of the suction port that is formed with said fans in the part corresponding with allocation position said fans above-mentioned housing,
Above-mentioned cover is cut off the part with above-mentioned through hole adjacency.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010024240A JP5039799B2 (en) | 2010-02-05 | 2010-02-05 | Electric vacuum cleaner |
| JP2010-024240 | 2010-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102146937A true CN102146937A (en) | 2011-08-10 |
Family
ID=44421357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100355170A Pending CN102146937A (en) | 2010-02-05 | 2011-01-28 | Electric dust collector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5039799B2 (en) |
| CN (1) | CN102146937A (en) |
| TW (1) | TWI415591B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013085852A (en) * | 2011-10-21 | 2013-05-13 | Hitachi Appliances Inc | Electric fan and vacuum cleaner with the same |
| JP7153834B2 (en) * | 2018-03-08 | 2022-10-17 | パナソニックＩｐマネジメント株式会社 | Temperature conditioning unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108995A (en) * | 1992-09-25 | 1994-04-19 | Tokyo Electric Co Ltd | Motor-driven blower |
| CN1169845A (en) * | 1996-07-09 | 1998-01-14 | 三菱电机株式会社 | electric hair dryer |
| US20050169750A1 (en) * | 2004-02-03 | 2005-08-04 | Lg Electronics Inc. | Air-blowing apparatus of cleaner |
| JP2008106645A (en) * | 2006-10-24 | 2008-05-08 | Matsushita Electric Ind Co Ltd | Electric blower and vacuum cleaner using the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4931020Y1 (en) * | 1970-07-23 | 1974-08-22 | ||
| JPS61188000A (en) * | 1985-02-18 | 1986-08-21 | Kubota Ltd | Dehydration treatment of organic sewage |
| JPH0768958B2 (en) * | 1986-12-20 | 1995-07-26 | 松下電器産業株式会社 | Electric blower for vacuum cleaner |
-
2010
- 2010-02-05 JP JP2010024240A patent/JP5039799B2/en not_active Expired - Fee Related
- 2010-12-16 TW TW99144221A patent/TWI415591B/en not_active IP Right Cessation
-
2011
- 2011-01-28 CN CN2011100355170A patent/CN102146937A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06108995A (en) * | 1992-09-25 | 1994-04-19 | Tokyo Electric Co Ltd | Motor-driven blower |
| CN1169845A (en) * | 1996-07-09 | 1998-01-14 | 三菱电机株式会社 | electric hair dryer |
| US20050169750A1 (en) * | 2004-02-03 | 2005-08-04 | Lg Electronics Inc. | Air-blowing apparatus of cleaner |
| JP2008106645A (en) * | 2006-10-24 | 2008-05-08 | Matsushita Electric Ind Co Ltd | Electric blower and vacuum cleaner using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5039799B2 (en) | 2012-10-03 |
| TW201143702A (en) | 2011-12-16 |
| TWI415591B (en) | 2013-11-21 |
| JP2011163153A (en) | 2011-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20110810 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |