CN105822595B - Electric blowing machine and electric dust collecting apparatus comprising the electric blowing machine - Google Patents
Electric blowing machine and electric dust collecting apparatus comprising the electric blowing machine Download PDFInfo
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- CN105822595B CN105822595B CN201510011754.1A CN201510011754A CN105822595B CN 105822595 B CN105822595 B CN 105822595B CN 201510011754 A CN201510011754 A CN 201510011754A CN 105822595 B CN105822595 B CN 105822595B
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- circuit board
- electric blowing
- impeller
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Abstract
The present invention provides a kind of electric blowing machine and the electric dust collecting apparatus comprising the electric blowing machine, which has DC Brushless Motor；Impeller is sent out by rotation from top air-breathing and by gas towards radial outside positioned at the top of motor；Impeller chimney covers from above impeller；Multiple guide blades constitute a current path, and the gas sent out from impeller is guided downwards by the periphery of motor；And muti-piece circuit board, it configures in the periphery of motor；Each circuit board has fitting surface, is equipped with electronic component on the fitting surface of circuit board, constitutes the driving circuit of motor, and the gas sent out from impeller is guided and flows through the circuit board.Thereby, it is possible to play the effect to the electronic cooling on circuit board, reduce the manufacturing cost of circuit board while realizing the miniaturization and simplicity of electric blowing machine.
Description
Technical field
A kind of electronic cleaning the present invention relates to motor more particularly to electric blowing machine and comprising the electric blowing machine
Machine.
Background technique
In the past, the electric blowing machine of electric dust collecting apparatus is mounted in using exchange brush motor, such as bibliography 1 and with reference to text
It offers recorded in 2, which can be used as the motor of driving impeller rotation.
In such electric blowing machine, the enlargement of electric dust collecting apparatus itself is not only resulted in, and since need will be from
The AC power source that motor is drawn is connected to the control unit of sweeper ontology with lead, to carry out the on-off of power supply in control unit
It is controlled with the voltage of revolving speed, there are the difficult points that the control circuit of sweeper ontology complicates.
In recent years, a kind of scheme of the electric blowing machine using DC Brushless Motor was suggested, and the program is small-sized in realization
Change, it is light-weighted simultaneously, by the rotation of higher speed improve air suck working efficiency, as recorded in patent document 3.
It is carried out it should be noted that the above description of the technical background is intended merely to the convenient technical solution to the embodiment of the present invention
Clear, complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes in this hair
The background technology part of bright embodiment is expounded and thinks that above-mentioned technical proposal is known to those skilled in the art.
Patent document 1: Japanese Unexamined Patent Publication 2010-190136；
Patent document 2: Japanese Unexamined Patent Publication 2011-115253；
Patent document 3: Japanese Unexamined Patent Publication 2012-202282.
Summary of the invention
But inventor has found: electric blowing machine needs newly design to be equipped with using DC Brushless Motor
The circuit board of the circuit of motor is controlled, especially in the case where pursuing the high speed of motor, to the electronic component on circuit board
Be cooled to for a big project.
To solve the above-mentioned problems, the embodiment of the invention provides a kind of electric blowing machine and include the electric blowing machine
Electric dust collecting apparatus.
First aspect according to an embodiment of the present invention provides a kind of electric blowing machine, wherein the electric blowing machine packet
It includes:
DC Brushless Motor, the DC Brushless Motor have rotating part, and center axis thereof is towards up and down direction；
Impeller, the impeller are located at the top of the DC Brushless Motor, connect with the rotating part, by rotating from upper
Square air-breathing simultaneously sends out gas towards radial outside；
Impeller chimney, the impeller chimney cover from above the impeller, have air inlet in the center of top of the impeller chimney；
Multiple guide blades, the multiple guide blades constitute a current path, and the current path will be from the leaf
The gas that wheel is sent out is guided downwards by the periphery of the DC Brushless Motor；And
Muti-piece circuit board, the muti-piece circuit board arrangement is in the periphery of the DC Brushless Motor；Each circuit board
With fitting surface, the fitting surface and the central axis are substantially parallel；Electronics is equipped on the fitting surface of the circuit board
Element, the electronic component constitute the driving circuit of the DC Brushless Motor, from the impeller send out gas be guided and
Flow through the circuit board.
The second aspect according to an embodiment of the present invention, wherein the electric blowing machine further include:
Diffusion part, the diffusion part is configured at the inside of the impeller chimney, and has multiple stator blades, the multiple stator blade
Piece is configured in the air side of the impeller；
Wherein, the multiple guide blades configuration is on the downside of the axial direction of the diffusion part.
In terms of third according to an embodiment of the present invention, wherein the electric blowing machine further include:
Annular plate section, the annular plate section are located at the lower part of the impeller chimney, and from the interior side of the impeller chimney to radial direction
Inside extends, and will guide from the gas of the impeller to the periphery of the DC Brushless Motor；
Wherein, the circuit board arrangement is in the lower section of the annular plate section.
4th aspect according to an embodiment of the present invention, wherein the multiple guide blades are upper from the annular plate section
Side is configured along the inner circumferential of the annular plate section.
5th aspect according to an embodiment of the present invention, wherein the electric blowing machine further include:
Main body cover, the main body cover cover the periphery of the DC Brushless Motor, and the main body cover is formed as bottomed tube,
And there is gas outlet in the lower part of the main body cover；
The annular plate section is formed with the 1st retaining hole for keeping the circuit board；And the main body cover is formed with holding
2nd retaining hole of the circuit board；
The main body cover is connected to the annular plate section；And the circuit board is maintained at the annular plate section and described
Between the bottom of main body cover.
6th aspect according to an embodiment of the present invention, wherein be provided in the main body cover prominent towards the annular plate section
Lug boss out；
Insertion hole is equipped in the lug boss；The lug boss is fixed on by the fixation member by penetrating through the insertion hole
The annular plate section, the main body cover are connected to the annular plate section.
7th aspect according to an embodiment of the present invention, wherein the electric blowing machine further include:
Substrate holder, the substrate holder are connected to the annular plate section, keep to the circuit board.
8th aspect according to an embodiment of the present invention, wherein the substrate holder, which has, is parallel to the brush DC
The multipair supporting slice of the central axis of motor, the multipair supporting slice keep the side edge part of the circuit board.
9th aspect according to an embodiment of the present invention, wherein the electric blowing machine further include:
Main body cover, the main body cover covers the periphery of the DC Brushless Motor, and has in the lower part of the main body cover
Gas outlet；
The main body cover is connected to the impeller chimney；And the substrate holder and the circuit board are covered by the main body
Lid.
According to an embodiment of the present invention ten aspect, wherein the circuit board arrangement is in the annular plate section and described
Between gas outlet.
According to an embodiment of the present invention tenth on one side, provides a kind of electric dust collecting apparatus, wherein
The electric dust collecting apparatus includes electric blowing machine described in any of the above embodiments.
The beneficial effect of the embodiment of the present invention is: the electric blowing machine provided through the embodiment of the present invention, can be in reality
While the miniaturization and simplicity of existing electric blowing machine, the effect to the electronic cooling on circuit board is played, is reduced
The manufacturing cost of circuit board.
Referring to following description and accompanying drawings, only certain exemplary embodiments of this invention is disclosed in detail, specifies original of the invention
Reason can be in a manner of adopted.It should be understood that embodiments of the present invention are not so limited in range.In appended power
In the range of the spirit and terms that benefit requires, embodiments of the present invention include many changes, modifications and are equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece or component when using herein, but do not arrange
Except the presence of one or more other features, one integral piece or component or additional.
Detailed description of the invention
Included attached drawing is used to provide further understanding of the invention, and which constitute part of specification, examples
The preferred embodiment of the present invention is shown, and the principle used to explain the present invention together with explanatory note, wherein for identical
Element is denoted by the same reference numerals always.
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 schematic cross-sectional view 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 schematic cross-sectional view of the diffusion part of the electric blowing machine of the embodiment of the present invention；
Fig. 5 is the diffusion part of the embodiment of the present invention and a schematic diagram of guide blades；
Fig. 6 is multiple guide blades of the embodiment of the present invention and a structural schematic diagram of annular plate section；
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 schematic cross-sectional view of the electric blowing machine of the another embodiment of the embodiment of the present invention.
Specific embodiment
Referring to attached drawing, by following explanation, aforementioned and other feature of the invention be will be apparent.In specification and
In attached drawing, only certain exemplary embodiments of this invention is specifically disclosed, which show the parts that can wherein use principle of the invention
Embodiment, it will thus be appreciated that the present invention is not limited to described embodiments, on the contrary, the present invention includes falling into appended right
Whole modifications, modification and equivalent in the range of it is required that.
In addition, in the present specification, " axial direction " will be known as with along the parallel direction in the direction that axis extends, it will be centered on axis
Radial direction be known as " radial direction ", by the circumferencial direction centered on axis referred to as " circumferential direction ".It is worth noting that, in this specification
All directions are defined with the convenience simply to illustrate that the embodiment of the present invention, limit electric blowing machine when using and manufacturing
Direction.
Embodiment 1
The embodiment of the present invention provides a kind of electric blowing machine.Fig. 1 is the overall appearance signal of the present embodiment electric blowing machine
Figure, as shown in Figure 1, electric blowing machine 100 has central axis AA ', towards up and down direction.For convenience of explanation, the present invention is real
It applies for example shown in Fig. 1, the side A of central axis is known as " top " in the axial direction, the opposite side A ' is known as " lower section ".Should " on
Side ", " lower section " do not limit the direction when electric blowing machine is used or is mounted.
As shown in Figure 1, the electric blowing machine 100 is substantially cylindrical, top has air inlet 22.Meanwhile the electric feeding
Blower 100 includes impeller chimney 13 and main body cover 18.The electric blowing machine 100 is carried out specifically below by way of sectional view
It is bright.
Fig. 2 is a schematic cross-sectional view of the electric blowing machine of the embodiment of the present invention, shows the electric blowing machine 100 of Fig. 1
The case where being splitted along axis AA '.As shown in Fig. 2, the electric blowing machine 100 includes DC Brushless Motor 11, impeller 12, impeller
Cover 13, multiple guide blades 14 and muti-piece circuit board 15.
Wherein, DC Brushless Motor 11 has a rotating part 111, and the central axis AA ' of the rotating part 111 is towards upper and lower
To.For convenience of explanation, as shown in Fig. 2, in the axial direction, the side A where impeller 12 being known as " top ", the opposite side A ' is claimed
For " lower section ".It is somebody's turn to do " top ", " lower section " does not limit the direction when DC Brushless Motor 11 is used or is mounted.
Impeller 12 is located at the top of the DC Brushless Motor 11, connect with rotating part 111.Also, impeller 12 passes through rotation
The rotation in portion 111 sucks gas from top, and gas is sent out towards radial outside.
Impeller chimney 13 covers from above impeller 12, and has air inlet in the center of top of the impeller chimney 13.
Fig. 3 is a schematic top plan view of the electric blowing machine of the present embodiment, is shown after removing impeller chimney 13, from electronic
The case where top of pressure fan 100 is observed.Impeller 12 as can see from Figure 3, and there is air outlet in center of top
22。
In the present embodiment, as shown in Fig. 2, having multiple guide blades 14 on the downside of impeller 12.Multiple guide blades 14
Constitute a current path (being not shown in Fig. 2), the current path by the portion gas sent out from impeller 12 by the direct current without
The periphery of brush motor 11 guides downwards.
In the present embodiment, each as shown in Fig. 2, the configuration of muti-piece circuit board 15 is in the periphery of the DC Brushless Motor 11
Circuit board 15 has fitting surface 151, and the fitting surface 151 and central axis AA ' are substantially parallel.Wherein, the fitting surface 151 and center
The error range of angle can be between 0 ° to 10 ° between axis AA ', but the embodiment of the present invention is without being limited thereto.In circuit board 15
Fitting surface 151 on be equipped with electronic component (being not shown in Fig. 2), which constitutes the driving of the DC Brushless Motor 11
Circuit, the gas sent out from impeller 12 are guided to flow through circuit board 15 by current path.
Circuit board is divided into muti-piece, and is configured in DC Brushless Motor by electric blowing machine through this embodiment
Periphery, can be realized include circuit board the miniaturization of electric blowing machine entirety, simplicity, without in cleaning owner
The circuit structure of body formation drive control motor；And the gas from impeller can be guided in the periphery of motor, Neng Gou
While cooling motor, cooling effect is also functioned to the electronic component on circuit board.Reduce as a result, the manufacture of circuit board at
This.
In an embodiment of the present embodiment, as shown in Fig. 2, the electric blowing machine 100 can also have diffusion part
16, which configures in the inside of impeller chimney 13.
Fig. 4 is a schematic cross-sectional view of the diffusion part of the electric blowing machine of the embodiment of the present invention, as shown in figure 4, the diffusion
Portion 16 has multiple stator blades 31, and multiple configuration of stator blade 31 is in the air side of impeller 12.Fig. 5 is the expansion of the embodiment of the present invention
The positional diagram in portion 16 and guide blades 14 is dissipated, as shown in figure 5, the configuration of multiple guide blades 14 is in the diffusion part 16
Axial downside.
Through this structure, the gas from impeller can be guided to the periphery of motor, in the cooling for carrying out motor
While, it can also be cooled down to by electronic component of the current path configuration on the circuit board of the periphery of motor.In addition,
By the way that diffusion part is arranged, circuit board can be accommodated into tight type.
In an embodiment of the present embodiment, as shown in Fig. 2, the electric blowing machine 100 can also have annular plate
Portion 17, which is located at the lower part of impeller chimney 13, and extends from the inner circumferential radially inner side of the impeller chimney 13, will come from
The gas of impeller 12 is guided to the periphery of the DC Brushless Motor 11.Wherein the configuration of circuit board 15 is in the lower section of annular plate section 17.
Fig. 6 is multiple guide blades 14 of the embodiment of the present invention and the structural schematic diagram of annular plate section 17, as shown in fig. 6,
In the present embodiment, the structure that multiple guide blades 14 and annular plate section 17 can be formed as one, multiple guide blades
14 configure in the top of the annular plate section 17 along the inner circumferential side complete cycle of the annular plate section 17.However, the present invention is not limited thereto, for example, it is more
A guide blades 14 and annular plate section 17 can also be respectively formed, and be configured to structure as shown in FIG. 6.
Fig. 7 is a schematic diagram of the annular plate section of the electric blowing machine of the present embodiment, is shown from below to annular plate section
17 the case where being observed.Fig. 8 is the another schematic diagram of the annular plate section of the electric blowing machine of the present embodiment, shows the ring-type
The three-dimensional situation in plate portion.
Through this structure, the gas from impeller can be guided to the periphery of motor, is cooled down to motor
While, electronic component of the configuration on the circuit board of the periphery of motor can be cooled down.In addition, by setting
Guide blades and annular plate section are set, can guide the gas from impeller in the periphery of DC Brushless Motor to smooth and higher efficiency
Body.
In an embodiment of the present embodiment, as shown in Fig. 2, the electric blowing machine 100 can also have main body cover
18, which covers the periphery of the 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 shown in figure 9, the main body cover 18
For bottomed tube, and there is gas outlet 181 in the lower part of the main body cover 18, main body cover 18 is formed with the 2nd of holding circuit plate 15
Retaining hole 182, main body cover 18 are connected to annular plate section 17.
As shown in FIG. 7 and 8, the 1st retaining hole 171 of holding circuit plate 15 is formed in annular plate section 17, and for solid
Surely the through hole 172 of annular plate section 17 and main body cover 18 is connected.Pass through 171 He of the 1st retaining hole shown in above-mentioned Fig. 7 and 8 as a result,
2nd retaining hole 182 shown in Fig. 9, circuit board 15 are maintained between annular plate section 17 and the bottom of main body cover 18.
Through this structure, the retaining hole support fixation that the retaining hole and main body cover being equipped with using annular plate section are equipped with is more
Block circuit board, can be by simply constructing holding circuit plate.
In an embodiment of the present embodiment, as shown in figure 9, can be set in main body cover 18 towards annular plate section
17 lug boss 183 is equipped with insertion hole 1831 in lug boss 183, and the fixation member by penetrating through the insertion hole 1831 will be convex
It plays portion 183 and is fixed on annular plate section 17, main body cover 18 is connected to annular plate section 17.
The connection structure can have a variety of structures, such as the insertion hole 1831 can be screw insertion hole, insert in the screw
The topmost of through-hole is equipped with the carrier 1832 on socket screw head, by penetrating through the screw thread of screw insertion hole for lug boss
183 are fixed on annular plate section 17, which also penetrates through the through hole 172 of annular plate section.The embodiment of the present invention is to this connection
Structure without limitation, such as can also have other embodiments.
With this configuration, while main body cover is connected with annular plate section, additionally it is possible to realize the fixation of circuit board.
In the present embodiment, when drive motor, the impeller 12 for being connected to the rotary shaft of DC Brushless Motor 11 is revolved
Turn, outside air is inhaled by the gas outlet 22 of impeller 12, then by impeller 12 to diameter outlet outward.In the diameter of impeller 12
Outward configured with forming spiral helicine stator blade, the air from impeller 12 by the spiral helicine stator blade of diffusion part 16 at
The inner face of the periphery wall of impeller chimney is guided in for swirling flow.Also, the swirling flow from diffusion part 16 is along the outer of impeller chimney
The interior extrusion downwards of peripheral wall, wind direction are guided in annular plate section and slip into the downside of diffusion part and be changed like that, annular plate
Radially inner side is guided between the upper surface in portion 17 and the lower surface of diffusion part 16.
That is, being guided in the gyration airflow of annular plate section 17, pass through the bending section quilt of perforation guide blades first
It is changed to Radial Flow, next flat part for being guided in guide blades flows downward, passes through DC Brushless Motor 11
Periphery is from the gas outlet of main body cover to external exhaust gas.
Here, being configured with such as two pieces of circuit boards 15 on the periphery of DC Brushless Motor 11, make the electronics of circuit board 15
The fitting surface 151 of element at the central axis for being parallel to rotary shaft state.
Specifically, by the substrate retaining hole of the upper edge part insertion upper board supporting part of circuit board 15, upper board branch
The substrate retaining hole of bearing portion is formed in below annular plate section 17, and lower board supporting part is inserted into the downside edge of circuit board 15
Substrate retaining hole, the substrate retaining hole of lower board supporting part is formed in the upper surface of the bottom wall part of main body cover 18, passes through example
It is such as screwed and main body cover 18 is connected to annular plate section 17, circuit board 15 is configured in the outside of DC Brushless Motor 11.Cause
This, by the air for guiding impeller to flow the periphery of DC Brushless Motor 11 downwards, in cooling 11 table of DC Brushless Motor
While face, circuit board 15 and the cooling electronic component for being assemblied in circuit board can be also contacted.
As can be seen from the above embodiments, the electric blowing machine provided through the embodiment of the present invention can realize powered supplied air
While the miniaturization and simplicity of machine, the effect to the electronic cooling on circuit board is played, reduces the system of circuit board
Cause this.
Embodiment 2
The embodiment of the present invention is further illustrated on the basis of embodiment 1.In the present embodiment, the electric blowing machine
Also there is substrate holder.Content same as 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, the substrate holder
10 are connected to annular plate section 17, and keep to muti-piece circuit board 15.In the present embodiment, substrate holder 10 can integrally at
Type, which is not limited by the present invention.Through this structure, it can be supported on the configuration of DC Brushless Motor periphery strongerly
Muti-piece circuit board.
In an embodiment of the present embodiment, as shown in Figure 10, which, which also has, is parallel to central axis
The multipair supporting slice 102 of line AA ', the multipair supporting slice is for keeping the side edge part of circuit board 15.
Substrate holder 10 shown in Fig. 10 includes circular 101, two pairs of supporting slices 102 of base plate and two connections
Portion 103.Two pairs of supporting slices 102 are set to the peripheral part of base plate 101, and interconnecting piece 103 connects adjacent supporting slice, becomes in phase
To the structure of the side edge part of holding circuit plate between the outer end of supporting slice 102, which is fixed on ring-type from downside
Plate portion.In substrate holder shown in Fig. 10, exemplary is two pairs of supporting slices, and however, the present invention is not limited thereto can have more
Supporting slice.With this configuration, muti-piece circuit board can be kept strongerly.
Figure 11 is the schematic cross-sectional view of the another embodiment of the electric blowing machine of the present embodiment, knot identical with Fig. 2
Structure omits label.Referring to Fig.1 1, in the present embodiment, which has substrate holder (being not shown in Figure 11),
The electric blowing machine 200 also has main body cover 1101, which covers the periphery of DC Brushless Motor 11, and in the master
The lower part of body cover 1101 has gas outlet, which is connected to impeller chimney 13, and the main body cover 1101 covers substrate
Bracket 100 and circuit board 15.
In the present embodiment, there is the main body cover of the periphery of covering DC Brushless Motor by designing, substrate branch can be covered
Frame and the muti-piece 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, which is configured in the lower section of annular plate section 17, and is located at
The top of above-mentioned air outlet.Whole circuit board is contained in above-mentioned current path as a result, so as to play to circuit board
The effect of electronic cooling on 15.Further, it is possible to be guided in the gas of the periphery of DC Brushless Motor by annular plate section
During body is moved to gas outlet, muti-piece circuit board is more effectively cooled down.
In the present embodiment, the muti-piece circuit board by configuration in the downside of annular plate section is kept with substrate holder.Substrate branch
Frame can be made of circular base plate, two pairs of holding wall portions (i.e. supporting slice) and interconnecting piece, and two pairs of holding wall portions are vertical herein
The peripheral part of base plate, interconnecting piece connect adjacent holding wall portion, become the holding circuit between the outer end of opposite holding wall portion
The structure of plate.The substrate holder is fixed on annular plate section from downside.Thus, it is possible to be kept to circuit board strongerly.
As can be seen from the above embodiments, the electric blowing machine provided through the embodiment of the present invention can realize powered supplied air
While the miniaturization and simplicity of machine, the effect to the electronic cooling on circuit board is played, reduces the system of circuit board
Cause this.
Embodiment 3
The embodiment of the present invention also provides a kind of electric dust collecting apparatus, which has electronic described in embodiment 1 or 2
Pressure fan, due to the structure of the electric blowing machine being described in detail in Examples 1 and 2, content by comprising
In this, details are not described herein.
In invention the present embodiment, such as two pieces of circuit boards are configured in the periphery of DC Brushless Motor, but the present invention is not
It is limited to this, such as can also be configured 3 pieces or 3 pieces or more of circuit board.Furthermore in Examples 1 and 2, two pieces or more of circuit board every
DC Brushless Motor against being configured, however, the present invention is not limited thereto, such as muti-piece circuit board can also be configured in adjacent position.
In this case, muti-piece circuit board electrical connection can become very simple.
The electric blowing machine structure of electric dust collecting apparatus through this embodiment, can be in the miniaturization for realizing electric blowing machine
While, the effect to the electronic cooling on circuit board is played, the manufacturing cost of circuit board is reduced.
Combine specific embodiment that the utility model is described above, but those skilled in the art should be clear
Chu, these descriptions are all exemplary, and are not the limitation to scope of protection of the utility model.Those skilled in the art can root
Various variants and modifications are made to the utility model according to the spirit and principle of the utility model, these variants and modifications are also in this reality
With in novel range.
The preferred embodiment of the present invention is described above by reference to attached drawing.The many features and advantage root of these embodiments
According to the detailed description be clearly, therefore appended claims be intended to cover these embodiments fall into its true spirit
With all these feature and advantage in range.Further, since those skilled in the art is readily apparent that many modifications and changes,
Therefore it is not meant to for embodiments of the present invention to be limited to illustrated and description precision architecture and operation, but can cover and fall into
All suitable modifications and equivalent within the scope of its.
Claims (11)
1. a kind of electric blowing machine, which is characterized in that the electric blowing machine includes:
DC Brushless Motor, the DC Brushless Motor have rotating part, and center axis thereof is towards up and down direction；
Impeller, the impeller are located at the top of the DC Brushless Motor, connect with the rotating part, are inhaled by rotation from top
Gas simultaneously sends out gas towards radial outside；
Impeller chimney, the impeller chimney cover from above the impeller, have air inlet in the center of top of the impeller chimney；
Multiple guide blades, the multiple guide blades constitute a current path, and the current path will be sent from the impeller
Gas out is guided downwards by the periphery of the DC Brushless Motor；And
Muti-piece circuit board, the muti-piece circuit board arrangement is in the periphery of the DC Brushless Motor；Each circuit board has
Fitting surface, the fitting surface and the central axis are substantially parallel；It is equipped with electronic component on the fitting surface of the circuit board,
The electronic component constitutes the driving circuit of the DC Brushless Motor, and the gas sent out from the impeller is guided and flows through institute
State circuit board.
2. electric blowing machine according to claim 1, which is characterized in that the electric blowing machine further include:
Diffusion part, the diffusion part is configured at the inside of the impeller chimney, and has multiple stator blades, and the multiple stator blade is matched
It sets in the air side of the impeller；
Wherein, the multiple guide blades configuration is on the downside of the axial direction of the diffusion part.
3. electric blowing machine according to claim 1 or 2, which is characterized in that the electric blowing machine further include:
Annular plate section, the annular plate section are located at the lower part of the impeller chimney, and from the interior side of the impeller chimney to radially inner side
Extend, will be guided from the gas of the impeller to the periphery of the DC Brushless Motor；
Wherein, the circuit board arrangement is in the lower section of the annular plate section.
4. electric blowing machine according to claim 3, which is characterized in that the multiple guide blades are from the annular plate section
Top along the annular plate section inner circumferential configure.
5. electric blowing machine according to claim 3, which is characterized in that the electric blowing machine further include:
Main body cover, the main body cover cover the periphery of the DC Brushless Motor, and the main body cover is formed as bottomed tube, and
The lower part of the main body cover has gas outlet；
The annular plate section is formed with the 1st retaining hole for keeping the circuit board；And the main body cover is formed with described in holding
2nd retaining hole of circuit board；
The main body cover is connected to the annular plate section；And the circuit board is maintained at the annular plate section and the main body
Between the bottom of cover.
6. electric blowing machine according to claim 5, which is characterized in that be provided in the main body cover towards the annular plate
Portion's lug boss outstanding；
Insertion hole is equipped in the lug boss；It is fixed on by penetrating through the fixation member of the insertion hole for the lug boss described
Annular plate section, the main body cover are connected to the annular plate section.
7. electric blowing machine according to claim 3, which is characterized in that the electric blowing machine further include:
Substrate holder, the substrate holder are connected to the annular plate section, keep to the circuit board.
8. electric blowing machine according to claim 7, which is characterized in that the substrate holder, which has, is parallel to the direct current
The multipair supporting slice of the central axis of brushless motor, the multipair supporting slice keep the side edge part of the circuit board.
9. electric blowing machine according to claim 7, which is characterized in that the electric blowing machine further include:
Main body cover, the main body cover covers the periphery of the DC Brushless Motor, and has outlet in the lower part of the main body cover
Mouthful；
The main body cover is connected to the impeller chimney；And the substrate holder and the circuit board are covered by the main body cover.
10. electric blowing machine according to claim 9, which is characterized in that the circuit board arrangement is in the annular plate section
Between the gas outlet.
11. a kind of electric dust collecting apparatus, which is characterized in that
The electric dust collecting apparatus includes described in any item electric blowing machines of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011754.1A CN105822595B (en) | 2015-01-09 | 2015-01-09 | Electric blowing machine and electric dust collecting apparatus comprising the electric blowing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011754.1A CN105822595B (en) | 2015-01-09 | 2015-01-09 | Electric blowing machine and electric dust collecting apparatus comprising the electric blowing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822595A CN105822595A (en) | 2016-08-03 |
| CN105822595B true CN105822595B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510011754.1A Expired - Fee Related 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11873824B2 (en) | 2021-02-05 | 2024-01-16 | Techtronic Cordless Gp | Blower |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626146B (en) * | 2017-03-17 | 2020-05-22 | 日本电产株式会社 | Air supply device and dust collector |
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 |
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2015
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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 |
|---|---|---|---|---|
| US11873824B2 (en) | 2021-02-05 | 2024-01-16 | Techtronic Cordless Gp | Blower |
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| CN105822595A (en) | 2016-08-03 |
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