CN105822595A - Electric air feeder and electric sweeper comprising same - Google Patents
Electric air feeder and electric sweeper comprising same Download PDFInfo
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- CN105822595A CN105822595A CN201510011754.1A CN201510011754A CN105822595A CN 105822595 A CN105822595 A CN 105822595A CN 201510011754 A CN201510011754 A CN 201510011754A CN 105822595 A CN105822595 A CN 105822595A
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Abstract
The invention provides an electric air feeder and an electric sweeper comprising the same. The electric air feeder comprises a direct current brushless motor, an impeller, an impeller hood, a plurality of guiding blades and a plurality of circuit boards, wherein the impeller is located above the motor, rotates to suck air from the upper side and sends out the air to the radial outer side; the impeller hood covers the impeller from the upper side; an airflow passage is formed by the guiding blades and used for guiding the air sent out by the impeller to the lower side through the periphery of the motor; the circuit boards are arranged on the periphery of the motor. Each circuit board is provided with an assembling face, electronic elements are assembled on the assembling faces of the circuit boards to form a driving circuit of the motor, and the air sent out by the impeller is guided to flow through the circuit boards. Therefore, while miniaturization and simplicity of the electric air feeder are achieved, the electronic elements on the circuit boards can be cooled, and the manufacturing cost of the circuit boards is lowered.
Description
Technical field
The present invention relates to motor, particularly relate to a kind of electric blowing machine and the electric dust collecting apparatus comprising this electric blowing machine.
Background technology
In the past, the electric blowing machine being mounted in electric dust collecting apparatus uses exchange brush motor, and as described in list of references 1 and list of references 2, this exchange brush motor can be as the motor driving impeller to rotate.
In such electric blowing machine, do not only result in the maximization of electric dust collecting apparatus itself, and owing to needing to be connected to the alternating current power supply drawn from motor lead-in wire the control portion of sweeper body, thus break-make and the Control of Voltage of rotating speed of power supply is carried out in control portion, there is the difficult point that the control circuit of sweeper body complicates.
In recent years, the scheme of a kind of electric blowing machine using DC Brushless Motor is suggested, the program realize miniaturization, light-weighted while, improve, by rotation more at a high speed, the work efficiency that air sucks, as described in patent documentation 3.
It should be noted that introduction to technical background above is intended merely to the convenient technical scheme to the embodiment of the present invention and carries out clear, complete explanation, and facilitate the understanding of those skilled in the art to illustrate.Can not be merely because these schemes be set forth at the background section of the embodiment of the present invention and think that technique scheme is known to those skilled in the art.
Patent documentation 1: Japanese Unexamined Patent Publication 2010-190136；
Patent documentation 2: Japanese Unexamined Patent Publication 2011-115253；
Patent documentation 3: Japanese Unexamined Patent Publication 2012-202282.
Summary of the invention
But, inventor finds: electric blowing machine is in the case of using DC Brushless Motor, new design is needed to be equipped with the circuit board of the circuit controlling motor, particularly in the case of the high speed pursuing motor, being cooled to for a big problem the electronic component on circuit board.
In order to solve the problems referred to above, embodiments provide a kind of electric blowing machine and the electric dust collecting apparatus comprising this electric blowing machine.
First aspect according to embodiments of the present invention, it is provided that a kind of electric blowing machine, wherein, described electric blowing machine includes:
DC Brushless Motor, described DC Brushless Motor has rotating part, and its center axis is towards above-below direction；
Impeller, described impeller is positioned at the top of described DC Brushless Motor, is connected with described rotating part, by rotate from top air-breathing and gas is radially oriented outside send；
Impeller chimney, described impeller chimney covers from above described impeller, and the center of top at described impeller chimney has air inlet；
Multiple guide blades, the plurality of guide blades constitutes a current path, and the gas sent from described impeller is guided downwards by described current path by the periphery of described DC Brushless Motor；And
Polylith circuit board, described polylith circuit board arrangement is in the periphery of described DC Brushless Motor；Each described circuit board has fitting surface, and described fitting surface is almost parallel with described central axis；Being equipped with electronic component on the fitting surface of described circuit board, described electronic component constitutes the drive circuit of described DC Brushless Motor, and the gas sent from described impeller is directed and flows through described circuit board.
Second aspect according to embodiments of the present invention, wherein, described electric blowing machine also includes:
Diffusion part, described diffusion part is configured at the inner side of described impeller chimney, and has multiple stator blade, and the plurality of stator blade is arranged in the air side of described impeller；
Wherein, the plurality of guide blades is arranged in the axial downside of described diffusion part.
The 3rd aspect according to embodiments of the present invention, wherein, described electric blowing machine also includes:
Annular plate section, described annular plate section is positioned at the bottom of described impeller chimney, and lateral radially inner side extends in described impeller chimney, is guided to the periphery of described DC Brushless Motor by the gas coming from described impeller；
Wherein, described circuit board arrangement is in the lower section of described annular plate section.
The 4th aspect according to embodiments of the present invention, wherein, the plurality of guide blades configures from the top of described annular plate section along the inner circumferential of described annular plate section.
The 5th aspect according to embodiments of the present invention, wherein, described electric blowing machine also includes:
Main body cover, described main body cover covers the periphery of described DC Brushless Motor, and described main body cover is formed as there is bottom tube-like, and has gas outlet in the bottom of described main body cover；
Described annular plate section is formed with the 1st retaining hole keeping described circuit board；And described main body cover is formed with the 2nd retaining hole keeping described circuit board；
Described main body cover is connected to described annular plate section；And described circuit board is maintained between the bottom of described annular plate section and described main body cover.
The 6th aspect according to embodiments of the present invention, wherein, is provided with the lobe highlighted towards described annular plate section in described main body cover；
It is provided with inserting hole in described lobe；By the fixed component of through described inserting hole, described lobe being fixed on described annular plate section, described main body cover is connected to described annular plate section.
The 7th aspect according to embodiments of the present invention, wherein, described electric blowing machine also includes:
Substrate holder, described substrate holder is connected to described annular plate section, keeps described circuit board.
The 8th aspect according to embodiments of the present invention, wherein, described substrate holder has the multipair supporting slice of the central axis being parallel to described DC Brushless Motor, and the side edge part of described circuit board is kept by described multipair supporting slice.
The 9th aspect according to embodiments of the present invention, wherein, described electric blowing machine also includes:
Main body cover, described main body cover covers the periphery of described DC Brushless Motor, and has gas outlet in the bottom of described main body cover；
Described main body cover is connected to described impeller chimney；And described substrate holder and described circuit board are covered by described main body cover.
The tenth aspect according to embodiments of the present invention, wherein, described circuit board arrangement is between described annular plate section and described gas outlet.
The 11st aspect according to embodiments of the present invention, it is provided that a kind of electric dust collecting apparatus, wherein,
Described electric dust collecting apparatus includes the electric blowing machine described in any of the above-described item.
Having the beneficial effects that of the embodiment of the present invention: the electric blowing machine provided by the embodiment of the present invention, can be while the miniaturization realizing electric blowing machine and simplicity, play the effect to the electronic cooling on circuit board, reduce the manufacturing cost of circuit board.
With reference to explanation hereinafter and accompanying drawing, disclose in detail only certain exemplary embodiments of this invention, the principle specifying the present invention can be in adopted mode.It should be understood that embodiments of the present invention are not so limited in scope.In the range of the spirit and terms of claims, embodiments of the present invention include many changes, revise and be equal to.
The feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitutes the feature in other embodiment.
It should be emphasized that term " includes/comprise " existence referring to feature, one integral piece or assembly herein when using, but it is not precluded from the existence of one or more further feature, one integral piece or assembly or additional.
Accompanying drawing explanation
Included accompanying drawing is used for providing further understanding of the invention, which constitute a part for description, exemplified with the preferred embodiment of the present invention, and be used for explaining the principle of the present invention together with explanatory note, wherein for identical key element, it is denoted by the same reference numerals all the time.
In the accompanying drawings:
Fig. 1 is an overall schematic of the electric blowing machine of the embodiment of the present invention；
Fig. 2 is a cross-sectional schematic of the electric blowing machine of the embodiment of the present invention；
Fig. 3 is a schematic top plan view of the electric blowing machine of the embodiment of the present invention；
Fig. 4 is a cross-sectional schematic of the diffusion part of the electric blowing machine of the embodiment of the present invention；
Fig. 5 is diffusion part and a schematic diagram of guide blades of the embodiment of the present invention；
Fig. 6 is multiple guide blades and a structural representation of annular plate section of the embodiment of the present invention；
Fig. 7 is a schematic diagram of the annular plate section of the embodiment of the present invention；
Fig. 8 is the another schematic diagram of the annular plate section of the embodiment of the present invention；
Fig. 9 is a schematic diagram of the main body cover of the electric blowing machine of the embodiment of the present invention；
Figure 10 is a schematic diagram of the substrate holder of the electric blowing machine of the embodiment of the present invention；
Figure 11 is a cross-sectional schematic of the electric blowing machine of the another embodiment of the embodiment of the present invention.
Detailed description of the invention
Referring to the drawings, by description below, the aforementioned and further feature of the present invention will be apparent from.In the specification and illustrated in the drawings, specifically disclose only certain exemplary embodiments of this invention, which show the some embodiments of the principle that wherein can use the present invention, will be appreciated that, the invention is not restricted to described embodiment, on the contrary, the present invention includes whole amendments, modification and the equivalent fallen within the scope of the appended claims.
It addition, in this manual, the direction parallel with the direction extended along axle is referred to as " axially ", the radial direction centered by axle is referred to as " radially ", the circumferencial direction centered by axle is referred to as " circumferential ".It should be noted that defining all directions simply to illustrate that the convenience of the embodiment of the present invention in this specification, do not limit the electric blowing machine direction when using and manufacture.
Embodiment 1
The embodiment of the present invention provides a kind of electric blowing machine.Fig. 1 is the overall appearance schematic diagram of the present embodiment electric blowing machine, as it is shown in figure 1, electric blowing machine 100 has central axis AA ', towards above-below direction.For convenience of explanation, relative A ' side, as it is shown in figure 1, in the axial direction the A side of central axis is referred to as " top ", is referred to as " lower section " by the embodiment of the present invention.Should " top ", " lower section " do not limit when this electric blowing machine is used or is mounted towards.
As it is shown in figure 1, this electric blowing machine 100 is the most cylindrically, top has air inlet 22.Meanwhile, this electric blowing machine 100 includes impeller chimney 13 and main body cover 18.Below by way of profile, this electric blowing machine 100 is described in detail.
Fig. 2 is a cross-sectional schematic of the electric blowing machine of the embodiment of the present invention, it is shown that the situation that the electric blowing machine 100 of Fig. 1 is cut open along axis AA '.As in figure 2 it is shown, this electric blowing machine 100 has: DC Brushless Motor 11, impeller 12, impeller chimney 13, multiple guide blades 14 and polylith circuit board 15.
Wherein, DC Brushless Motor 11 has rotating part 111, and the central axis AA ' of this rotating part 111 is towards above-below direction.For convenience of explanation, as in figure 2 it is shown, in the axial direction, the A side at impeller 12 place is referred to as " top ", relative A ' side is referred to as " lower section ".Should " top ", " lower section " do not limit when this DC Brushless Motor 11 is used or is mounted towards.
Impeller 12 is positioned at the top of this DC Brushless Motor 11, is connected with rotating part 111.Further, gas is sucked from top by impeller 12 by the rotation of rotating part 111, and gas is radially oriented outside sends.
Impeller chimney 13 covers from above impeller 12, and has air inlet in the center of top of this impeller chimney 13.
Fig. 3 is a schematic top plan view of the electric blowing machine of the present embodiment, it is shown that after removing impeller chimney 13, carries out situation about observing from the top of electric blowing machine 100.Impeller 12 as can see from Figure 3, and in center of top, there is air outlet 22.
In the present embodiment, as in figure 2 it is shown, have multiple guide blades 14 on the downside of impeller 12.Multiple guide blades 14 constitute a current path (not shown in Fig. 2), and the portion gas sent from impeller 12 is guided downwards by this current path by the periphery of this DC Brushless Motor 11.
In the present embodiment, as in figure 2 it is shown, polylith circuit board 15 is arranged in the periphery of this DC Brushless Motor 11, each circuit board 15 has fitting surface 151, and this fitting surface 151 is almost parallel with central axis AA '.Wherein, between this fitting surface 151 and central axis AA ', the range of error of angle can be between 0 ° to 10 °, but the embodiment of the present invention is not limited to this.Being equipped with electronic component (not shown in Fig. 2) on the fitting surface 151 of circuit board 15, this electronic component constitutes the drive circuit of this DC Brushless Motor 11, and the gas sent from impeller 12 is directed and flow through circuit board 15 by current path.
By the electric blowing machine of the present embodiment, circuit board is divided into polylith, and it is arranged in the periphery of DC Brushless Motor, it is possible to realize including the miniaturization of electric blowing machine entirety of circuit board, simplicity, without forming the circuit structure driving control motor in sweeper main body；And the gas from impeller can be guided in the periphery of motor, it is possible to while cooling motor, the electronic component on circuit board is also functioned to the effect of cooling.Thus, the manufacturing cost of circuit board is reduced.
In an embodiment of the present embodiment, as in figure 2 it is shown, this electric blowing machine 100 can also have diffusion part 16, this diffusion part 16 is arranged in the inner side of impeller chimney 13.
Fig. 4 is a cross-sectional schematic of the diffusion part of the electric blowing machine of the embodiment of the present invention, and as shown in Figure 4, this diffusion part 16 has multiple stator blade 31, and the plurality of stator blade 31 is arranged in the air side of impeller 12.Fig. 5 is diffusion part 16 and the position relationship schematic diagram of guide blades 14 of the embodiment of the present invention, as it is shown in figure 5, the plurality of guide blades 14 is arranged in the axial downside of this diffusion part 16.
By such structure, it is possible to the gas from impeller is guided the periphery to motor, while carrying out the cooling of motor, it is also possible to cool down the electronic component on the circuit board of the periphery being arranged in motor by current path.Additionally, by arranging diffusion part, circuit board can be accommodated into tight type.
In an embodiment of the present embodiment, as shown in Figure 2, this electric blowing machine 100 can also have annular plate section 17, this annular plate section 17 is positioned at the bottom of impeller chimney 13, and extend from the inner circumferential radially inner side of this impeller chimney 13, the gas from impeller 12 is guided to the periphery of this DC Brushless Motor 11.Wherein circuit board 15 is arranged in the lower section of annular plate section 17.
Fig. 6 is multiple guide blades 14 and the structural representation of annular plate section 17 of the embodiment of the present invention, as shown in Figure 6, in the present embodiment, the structure that the plurality of guide blades 14 and annular plate section 17 can be formed as one, multiple guide blades 14 above this annular plate section 17 along the all-round configuration in inner circumferential side of this annular plate section 17.But the invention is not restricted to this, the most multiple guide blades 14 and annular plate section 17 can also be formed respectively, and are configured to structure as shown in Figure 6.
Fig. 7 is a schematic diagram of the annular plate section of the electric blowing machine of the present embodiment, it is shown that situation about observing annular plate section 17 from below.Fig. 8 is the another schematic diagram of the annular plate section of the electric blowing machine of the present embodiment, it is shown that the three-dimensional situation of this annular plate section.
By such structure, it is possible to the gas from impeller is guided the periphery to motor, motor is being cooled down
While, the electronic component on the circuit board of the periphery being arranged in motor can be cooled down.Additionally, by arranging guide blades and annular plate section, it is possible to smooth and higher efficiency ground guides the gas from impeller in the periphery of DC Brushless Motor.
In an embodiment of the present embodiment, as in figure 2 it is shown, this electric blowing machine 100 can also have main body cover 18, this main body cover 18 covers the periphery of this DC Brushless Motor 11.
Fig. 9 is a schematic diagram of the main body cover of the electric blowing machine of the embodiment of the present invention, as it is shown in figure 9, this main body cover 18 is for there being bottom tube-like, and in the bottom of this main body cover 18, there is gas outlet 181, main body cover 18 is formed with the 2nd retaining hole 182 of holding circuit plate 15, and main body cover 18 is connected to annular plate section 17.
As shown in FIG. 7 and 8, it is formed with the 1st retaining hole 171 of holding circuit plate 15 in annular plate section 17, and connects annular plate section 17 and the through hole 172 of main body cover 18 for fixing.Thus, by the 2nd retaining hole 182 shown in the 1st retaining hole 171 and Fig. 9 shown in above-mentioned Fig. 7 and 8, circuit board 15 is maintained between the bottom of annular plate section 17 and main body cover 18.
By such structure, retaining hole that annular plate section is provided with and the retaining hole that main body cover is provided with is used to support fixing polylith circuit board, it is possible to by simple structure holding circuit plate.
In an embodiment of the present embodiment, as shown in Figure 9, the lobe 183 towards annular plate section 17 can be provided with in main body cover 18, it is provided with inserting hole 1831 in lobe 183, by the fixed component of through described inserting hole 1831, lobe 183 being fixed on annular plate section 17, main body cover 18 is connected to annular plate section 17.
This attachment structure can have various structures, such as this inserting hole 1831 can be screw inserting hole, topmost at this screw inserting hole is provided with the carrier 1832 of socket screw head, by the screw thread of through screw inserting hole, lobe 183 is fixed on annular plate section 17, the through hole 172 of the most through annular plate section of this screw thread.This attachment structure is not limited by the embodiment of the present invention, such as, can also have other embodiment.
By this structure, while main body cover is connected with annular plate section, additionally it is possible to realize the fixing of circuit board.
In the present embodiment, when driving motor, the impeller 12 of the rotary shaft being connected to DC Brushless Motor 11 rotates, and extraneous air is inhaled into by the gas outlet 22 of impeller 12, then is given vent to anger outward to footpath by impeller 12.Radial outside at impeller 12 is configured with the spiral helicine stator blade of formation, and the air from impeller 12 becomes swirling flow by the spiral helicine stator blade of diffusion part 16 and is guided in the inner face of the periphery wall of impeller chimney.And, swirling flow extrusion downwards along the periphery wall of impeller chimney from diffusion part 16, wind direction is guided in annular plate section and slips into the downside of diffusion part and be changed like that, is guided in radially inner side between upper surface and the lower surface of diffusion part 16 of annular plate section 17.
That is, it is guided in the gyration airflow of annular plate section 17, the bending section first passing through through guide blades is changed to Radial Flow, and next flat part being guided in guide blades flows downward, by the periphery of DC Brushless Motor 11 from the gas outlet of main body cover to external exhaust gas.
Here, be configured with such as two pieces circuit boards 15 on the periphery of DC Brushless Motor 11, the fitting surface 151 one-tenth of the electronic component of circuit board 15 is made to be parallel to the state of central axis of rotary shaft.
Specifically, the upper edge part of circuit board 15 is inserted the substrate retaining hole of upper board support, the substrate retaining hole of upper board support is formed at below annular plate section 17, the edge, downside of circuit board 15 is inserted the substrate retaining hole of lower board support, the substrate retaining hole of lower board support is formed at the upper surface of the bottom wall part of main body cover 18, by being such as screwed, main body cover 18 is connected to annular plate section 17, circuit board 15 is arranged in the outside of DC Brushless Motor 11.Therefore, by the air guiding impeller to make the periphery of DC Brushless Motor 11 flow downwards, while cooling DC Brushless Motor 11 surface, it is also possible to contact circuit board 15 also cools down the electronic component being assemblied in circuit board.
From above-described embodiment, the electric blowing machine provided by the embodiment of the present invention, it is possible to while the miniaturization realizing electric blowing machine and simplicity, play the effect to the electronic cooling on circuit board, reduce the manufacturing cost of circuit board.
Embodiment 2
The embodiment of the present invention is further illustrated on the basis of embodiment 1.In the present embodiment, this electric blowing machine also has substrate holder.Content same as in Example 1 repeats no more.
Figure 10 is a schematic diagram of the substrate holder of the electric blowing machine of the present embodiment.As shown in Figure 10, this substrate holder 10 is connected to annular plate section 17, and keeps polylith circuit board 15.In the present embodiment, substrate holder 10 can be one-body molded, and this is not limited by the present invention.By such structure, it is possible to be more firmly supported at the polylith circuit board of DC Brushless Motor periphery configuration.
In an embodiment of the present embodiment, as shown in Figure 10, this substrate holder 10 also has the multipair supporting slice 102 being parallel to central axis AA ', and this multipair supporting slice is for keeping the side edge part of circuit board 15.
Substrate holder 10 shown in Figure 10 includes 101, two pairs of supporting slices 102 of circular base plate and two connecting portions 103.Two pairs of supporting slices 102 are arranged at the peripheral part of base plate 101, and connecting portion 103 connects adjacent supporting slice, become the structure of the side edge part of holding circuit plate between the outer end of relative supporting slice 102, and this substrate holder 10 is fixed on annular plate section from downside.In the substrate holder shown in Figure 10, example is two pairs of supporting slices, but the invention is not restricted to this, can have more supporting slice.By this structure, can more firmly hold polylith circuit board.
Figure 11 is the cross-sectional schematic of another embodiment of the electric blowing machine of the present embodiment, the incomplete structure labelling identical with Fig. 2.With reference to Figure 11, in the present embodiment, this electric blowing machine 200 has substrate holder (not shown in Figure 11), this electric blowing machine 200 also has main body cover 1101, this main body cover 1101 covers the periphery of DC Brushless Motor 11, and in the bottom of this main body cover 1101, there is gas outlet, this main body cover 1101 is connected to impeller chimney 13, and this main body cover 1101 covers substrate holder 100 and circuit board 15.
In the present embodiment, by being designed with the main body cover of the periphery covering DC Brushless Motor, it is possible to cover substrate holder and the polylith circuit board being supported by it, make circuit board be received into tight structure, and can be from outer protection circuit board.
In an embodiment of the present embodiment, this circuit board 15 is configured in the lower section of annular plate section 17, and is positioned at the top of above-mentioned air outlet.Thus, whole circuit board is contained in above-mentioned current path, such that it is able to play the effect to the electronic cooling on circuit board 15.Further, it is possible to the gas of the periphery being guided in DC Brushless Motor by annular plate section moves to the period of gas outlet, more effectively cooling polylith circuit board.
In the present embodiment, the polylith circuit board substrate holder being arranged in the downside of annular plate section is kept.Substrate holder can by circular base plate, two to keep wall portion (i.e. supporting slice) and connecting portion form, two pairs of holding wall portions stand in the peripheral part of this base plate, connecting portion connects adjacent holding wall portion, becomes the structure of holding circuit plate between the outer end relatively keeping wall portion.This substrate holder is fixed on annular plate section from downside.Thus, it is possible to more securely circuit board is kept.
From above-described embodiment, the electric blowing machine provided by the embodiment of the present invention, it is possible to while the miniaturization realizing electric blowing machine and simplicity, play the effect to the electronic cooling on circuit board, reduce the manufacturing cost of circuit board.
Embodiment 3
The embodiment of the present invention also provides for a kind of electric dust collecting apparatus, this electric dust collecting apparatus has the electric blowing machine described in embodiment 1 or 2, owing to, in embodiment 1 and 2, being described in detail the structure of this electric blowing machine, its content is contained in this, does not repeats them here.
In invention the present embodiment, it is configured with such as two pieces circuit boards in the periphery of DC Brushless Motor, but the invention is not restricted to this, such as, can also be configured 3 pieces or the circuit board of more than 3 pieces.In this external embodiment 1 and 2, the circuit board of more than two pieces faces toward be configured across DC Brushless Motor, but the invention is not restricted to this, and such as polylith circuit board can also be configured in adjacent position.In this case, the electrical connection of polylith circuit board can become the simplest.
By the electric blowing machine structure of the electric dust collecting apparatus of the present embodiment, it is possible to while realizing the miniaturization of electric blowing machine, play the effect to the electronic cooling on circuit board, reduce the manufacturing cost of circuit board.
Above in association with specific embodiment, this utility model is described, it will be appreciated by those skilled in the art that these descriptions are all exemplary, is not the restriction to this utility model protection domain.This utility model can be made various variants and modifications according to spirit of the present utility model and principle by those skilled in the art, and these variants and modifications are also in the range of this utility model.
The preferred embodiment of the present invention is described above by reference to accompanying drawing.Many feature and advantage of these embodiments are clearly according to this detailed description, and therefore claims are intended to cover all these feature and advantage falling in its true spirit and scope of these embodiments.Additionally, due to those skilled in the art is readily apparent that a lot of modifications and changes, therefore it is not meant to be limited to embodiments of the present invention precision architecture that is illustrated and that describe and operation, but can contain and fall into all suitable modifications in the range of it and equivalent.
Claims (11)
1. an electric blowing machine, it is characterised in that described electric blowing machine includes:
DC Brushless Motor, described DC Brushless Motor has rotating part, and its center axis is towards above-below direction；
Impeller, described impeller is positioned at the top of described DC Brushless Motor, is connected with described rotating part, by rotate from top air-breathing and gas is radially oriented outside send；
Impeller chimney, described impeller chimney covers from above described impeller, and the center of top at described impeller chimney has air inlet；
Multiple guide blades, the plurality of guide blades constitutes a current path, and the gas sent from described impeller is guided downwards by described current path by the periphery of described DC Brushless Motor；And
Polylith circuit board, described polylith circuit board arrangement is in the periphery of described DC Brushless Motor；Each described circuit board has fitting surface, and described fitting surface is almost parallel with described central axis；Being equipped with electronic component on the fitting surface of described circuit board, described electronic component constitutes the drive circuit of described DC Brushless Motor, and the gas sent from described impeller is directed and flows through described circuit board.
Electric blowing machine the most according to claim 1, it is characterised in that described electric blowing machine also includes:
Diffusion part, described diffusion part is configured at the inner side of described impeller chimney, and has multiple stator blade, and the plurality of stator blade is arranged in the air side of described impeller；
Wherein, the plurality of guide blades is arranged in the axial downside of described diffusion part.
Electric blowing machine the most according to claim 1 and 2, it is characterised in that described electric blowing machine also includes:
Annular plate section, described annular plate section is positioned at the bottom of described impeller chimney, and lateral radially inner side extends in described impeller chimney, is guided to the periphery of described DC Brushless Motor by the gas coming from described impeller；
Wherein, described circuit board arrangement is in the lower section of described annular plate section.
Electric blowing machine the most according to claim 3, it is characterised in that the plurality of guide blades configures from the top of described annular plate section along the inner circumferential of described annular plate section.
Electric blowing machine the most according to claim 3, it is characterised in that described electric blowing machine also includes:
Main body cover, described main body cover covers the periphery of described DC Brushless Motor, and described main body cover is formed as there is bottom tube-like, and has gas outlet in the bottom of described main body cover；
Described annular plate section is formed with the 1st retaining hole keeping described circuit board；And described main body cover is formed with the 2nd retaining hole keeping described circuit board；
Described main body cover is connected to described annular plate section；And described circuit board is maintained between the bottom of described annular plate section and described main body cover.
Electric blowing machine the most according to claim 5, it is characterised in that be provided with the lobe highlighted towards described annular plate section in described main body cover；
It is provided with inserting hole in described lobe；By the fixed component of through described inserting hole, described lobe being fixed on described annular plate section, described main body cover is connected to described annular plate section.
Electric blowing machine the most according to claim 3, it is characterised in that described electric blowing machine also includes:
Substrate holder, described substrate holder is connected to described annular plate section, keeps described circuit board.
Electric blowing machine the most according to claim 7, it is characterised in that described substrate holder has the multipair supporting slice of the central axis being parallel to described DC Brushless Motor, the side edge part of described circuit board is kept by described multipair supporting slice.
Electric blowing machine the most according to claim 7, it is characterised in that described electric blowing machine also includes:
Main body cover, described main body cover covers the periphery of described DC Brushless Motor, and has gas outlet in the bottom of described main body cover；
Described main body cover is connected to described impeller chimney；And described substrate holder and described circuit board are covered by described main body cover.
Electric blowing machine the most according to claim 9, it is characterised in that described circuit board arrangement is between described annular plate section and described gas outlet.
11. 1 kinds of electric dust collecting apparatus, it is characterised in that
Described electric dust collecting apparatus includes the electric blowing machine described in any one of claim 1 to 10.
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| CN201510011754.1A CN105822595B (en) | 2015-01-09 | 2015-01-09 | Electric blowing machine and electric dust collecting apparatus comprising the electric blowing machine |
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| CN201510011754.1A CN105822595B (en) | 2015-01-09 | 2015-01-09 | Electric blowing machine and electric dust collecting apparatus comprising the electric blowing machine |
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| CN108626146A (en) * | 2017-03-17 | 2018-10-09 | 日本电产株式会社 | Air-supply arrangement and dust catcher |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876827A (en) | 2021-02-05 | 2022-08-09 | 创科无线普通合伙 | Hair drier |
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| CN1573121A (en) * | 2003-05-20 | 2005-02-02 | 东芝泰格有限公司 | Electric blower and electric apparatus equipped therewith |
| CN103532299A (en) * | 2012-07-05 | 2014-01-22 | 日本电产株式会社 | Centrifugal fan |
| CN203506622U (en) * | 2013-09-29 | 2014-04-02 | 莱克电气股份有限公司 | Motor hood with circuit board heat dissipation component and dust collector |
| CN203763004U (en) * | 2014-03-20 | 2014-08-13 | 光荣电业（东莞）有限公司 | Alternating current and direct current dual-power-supply vacuum cleaner |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1573121A (en) * | 2003-05-20 | 2005-02-02 | 东芝泰格有限公司 | Electric blower and electric apparatus equipped therewith |
| CN103532299A (en) * | 2012-07-05 | 2014-01-22 | 日本电产株式会社 | Centrifugal fan |
| CN203506622U (en) * | 2013-09-29 | 2014-04-02 | 莱克电气股份有限公司 | Motor hood with circuit board heat dissipation component and dust collector |
| CN203763004U (en) * | 2014-03-20 | 2014-08-13 | 光荣电业（东莞）有限公司 | Alternating current and direct current dual-power-supply vacuum cleaner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108626146A (en) * | 2017-03-17 | 2018-10-09 | 日本电产株式会社 | Air-supply arrangement and dust catcher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105822595B (en) | 2019-11-08 |
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