CN1573121A - Electric blower and electric apparatus equipped therewith - Google Patents
Electric blower and electric apparatus equipped therewith Download PDFInfo
- Publication number
- CN1573121A CN1573121A CNA2004100074533A CN200410007453A CN1573121A CN 1573121 A CN1573121 A CN 1573121A CN A2004100074533 A CNA2004100074533 A CN A2004100074533A CN 200410007453 A CN200410007453 A CN 200410007453A CN 1573121 A CN1573121 A CN 1573121A
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- China
- Prior art keywords
- mentioned
- blowing machine
- electric blowing
- motor
- electric
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/22—Mountings for motor fan assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5813—Cooling the control unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5853—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps heat insulation or conduction
Abstract
By arranging a power device or devices on the outer face of a partition wall such as a linking portion (flange portion) constituting a flow passage between the exhaust port of a centrifugal fan and a motor, the power device or devices can be efficiently cooled without disturbing the air flow in an air channel within a case and without increasing in pressure loss of the air channel. Moreover, the power device or devices are not affected by heat from the motor since they are positioned farther upstream than the motor, in the air flow from the centrifugal fan.
Description
Technical field
The electrical equipment that the present invention relates to electric blowing machine and have the electric sweeper etc. of this electric blowing machine.
Background technique
In the example shown in Figure 1 according to patent documentation 1 (spy opens flat 6-26494 communique), switching element is adjacent to and is provided with in the periphery of the engine case in the space that the step of the peripheral part of peripheral part by engine case and fan case forms.
According to the switching element in the example shown in Figure 3 of patent documentation 2 (spy opens flat 6-261847 communique), be will contain the controlling and driving ic substrate assembly with respect to demarcation strip at fan side, in the cabinet in the zone that directly contacts with the air that comes out from diffuser, be provided with.
In the electric blowing machine shown in Figure 1 of patent documentation 1, switching element is arranged on the periphery of engine case.But switching element is installed in the periphery near the engine case of stator, because seriously be subjected to the influence by the heat of stator generation, cooling effect reduces.And then because the periphery of engine case is because various purposes are implemented various processing, and this outer circumferential face shape is curved surface, so the configuration degrees of freedom of switching element is little, and makes switching element and engine case be difficult to be close to.Like this improper becomes the reason that cost increases.Especially, in having a plurality of brushless motors that are necessary the power equipment that cools off etc., it is remarkable that those problem becomes.
In addition, in the electric blowing machine shown in Figure 3 of patent documentation 2, will contain in the wind path of arrangement of components between fan and motor of controlling and driving ic substrate.But, if in such wind path with arrangement of components, wind path loss increases, the efficient of electric blowing machine reduces.Especially, in having a plurality of brushless motors that are necessary the power equipment that cools off etc., that inner wind path becomes is complicated, the wind path loss increases.
Summary of the invention
Thereby, the objective of the invention is, do not make wind path loss increase, the power equipment of switching element etc. can be cooled off effectively.
Among the present invention, at electric blowing machine or have in the electrical equipment of this electric blowing machine, the centrifugal cutter on the running shaft that is installed in motor and the cabinet of above-mentioned motor are accommodated in setting, be arranged on the power equipment of the drive circuit that is used for driving above-mentioned motor, be configured in the outside in the next door of the discharge opening that forms above-mentioned centrifugal cutter and the stream between the above-mentioned motor.
By the present invention, the wind path loss of electric blowing machine is increased, the power equipment of switching element etc. can be cooled off effectively.
Description of drawings
Fig. 1 is a profile of the part of the formation of the of the present invention the 1st embodiment's electric blowing machine being cut open expression;
Fig. 2 is the planimetric map of this a part of inside configuration example of expression;
Fig. 3 (a) is the planimetric map of the configuration example of expression diffuser;
Fig. 3 (b) is the ground plan of the configuration example of expression diffuser;
Fig. 4 is the roughly circuit diagram of the drive circuit of this electric blowing machine of expression;
Fig. 5 is a profile of the part of the electric blowing machine of variation being cut open expression;
Fig. 6 is the planimetric map of the electric blowing machine of expression variation;
Fig. 7 is a profile of the part of the formation of the of the present invention the 2nd embodiment's electric blowing machine being cut open expression;
Fig. 8 is the planimetric map of this a part of inside configuration example of expression;
Fig. 9 is a profile of the part of the formation of the of the present invention the 3rd embodiment's electric blowing machine being cut open expression;
Figure 10 is the planimetric map of this a part of inside configuration example of expression;
Figure 11 is the generally circuit diagram roughly of the drive circuit of this electric blowing machine of expression;
Figure 12 is the perspective view that the outward appearance of expression the of the present invention the 4th embodiment's electric sweeper constitutes;
Figure 13 is the vertical profile profile of this inside configuration example of expression;
Figure 14 is the profile that the part of the formation of electric blowing machine that electric sweeper is had is cut expression open;
Figure 15 is a profile of the part of the formation of the of the present invention the 5th embodiment's electric blowing machine being cut open expression;
Figure 16 is a planimetric map of the part of the formation of the of the present invention the 6th embodiment's electric blowing machine being cut open expression.
Embodiment
The of the present invention the 1st embodiment is described to Fig. 4 based on Fig. 1.Fig. 1 is a profile of the part of the formation of the electric blowing machine of present embodiment being cut open expression, Fig. 2 is the planimetric map of this a part of inside configuration example of expression, Fig. 3 is the planimetric map and the ground plan of expression diffuser configuration example, and Fig. 4 is the roughly circuit diagram of the drive circuit of this electric blowing machine of expression.
The electric blowing machine 1 of present embodiment is generally by motor 2, be installed in as the centrifugal cutter 4 of the rotor shaft 3 of the running shaft of this motor 2 with those motor 2, the cabinet 5 that centrifugal cutter 4 is accommodated and constitute.
Here, the motor 2 of present embodiment, the example of the motor that brush is arranged is paid in expression, is accommodated in engine case 6.The front end side of this engine case 6 is opening portions 7, and on this engine case 6, the carriage 8 of long strip-board shape is crossed in the diametric(al) of engine case 6, and is mounted by screw 9 in the mode of the part that covers opening portion 7.Thereby the opening portion 7 that is not capped by carriage 8 has not formed vent hole 10.Then, in the substantial middle of carriage 8, forwards (centrifugal cutter 4 sides) and roughly cylindric the bearing accommodation section 13a that gives prominence to are set.In interior all sides of this accommodation section 13a, bearing 11a is accommodated, and at the substantial middle place of bearing accommodation section 13a, the through hole 12 of rotor shaft 3 usefulness forms opening.
And at the front side of carriage 8, diffuser 14 is fixed.And then, be configured at the place ahead of this diffuser 14 centrifugal cutter 4.Then, at the peripheral part of engine case 6 chimeric (binding) fan cover 15, centrifugal cutter 4, diffuser 14 are covered by this fan cover 15.When this fan cover 15, central part in front have suction opening portion 16 with ventilated port 17 subtends of centrifugal cutter 4, the back comprehensively on form rear aperture portion (figure does not show), integrally form roughly cylindric.Constitute cabinet 5 by those engine cases 6 and fan cover 15.Here, fan cover 15 is with respect to engine case 6, and the bigger ground of the periphery size of centrifugal direction (periphery the earth) forms.Then, the upper end portion of engine case 6 (from engine case 6 observe and the occasion of fan cover 15 as last direction) be connected by linking department 18 with the underpart of fan cover 15.
In addition, motor 2 is made of stator 19 that is fixed on engine case 6 and the rotor 20 that is configured in the inboard of this stator 19.Then, the two end part of the rotor shaft 3 at the center of rotor 20 are by bearing 11a, and the 11b rotation is freely supported by axle.And then, on the side face nearby of the back of engine case 6, make the position form opening in the approximate diameter direction and as the blow-off outlet (figure does not show) of relief opening.And the axial back side of engine case 6 has shape ground, the end by inaccessible by back board 21.And then the central part of this back board 21 forms bearing accommodation section 13b towards the rear and roughly cylindric giving prominence to.Then, at the inner peripheral surface of this bearing accommodation section 13b, bearing 11b is accommodated.
Here, the configuration example with diffuser 14 illustrates with reference to Fig. 3.Diffuser 14, shown in Fig. 3 (A), has roughly discoideus plectane portion 81, at the approximate centre formation of this plectane portion 81 and the through hole 82 that runs through by rotor shaft 3, be used on carriage 8, passing through screw hole 83a, the 83b of screw, for the position in the peripheral part of centrifugal cutter 4 and near the upright a plurality of circular-arc blade 84 established of the outer periphery portion of diffuser 14, shown in Fig. 3 (B) plectane portion 81 as the back of another side example on the whirlpool shape found a plurality of circular-arc blade 85 of establishing.Then, diffuser 14 with linking department 18 subtends of cabinet 5 and by intercalation, passes through screw on carriage 8.
In such formation, if rotor shaft 3 rotations and this rotating integrated ground, centrifugal cutter 4 rotation.By the attraction air of this rotation, pass through centrifugal cutter 4 from the suction opening portion 16 that the front face side at fan cover 15 forms, blow out from discharge opening 22.Then, this air along the inner peripheral surface of fan cover 15, axially flows diffusely in 84 in circular-arc blade.Then, this air is in the back of plectane portion 81, the center flow on 85 whirlpool shapes of circular-arc blade ground to diffuser 14.Like this, diffuser 14, making the air rectification that blows out from the discharge opening 22 of centrifugal cutter 4 is identical pattern, to motor 2 conduction.
In addition, this electric blowing machine 1, as shown in Figure 4, the switching element 23 of controlling usefulness by electric power is connected to commercial ac power source.On the grid (control connector lug) of this switching element 23, connect the electric blowing machine control device 26 that constitutes by microcomputer 25 grades.Then, those switching elements 23 and electric blowing machine control device 26 are installed in the circuit substrate 27.And then, in this electric blowing machine control device 26, connect the startup be used to select electric blowing machine 1, stop or the operation unit 28 of electric power.Constitute drive circuit 27a by switching element 23, electric blowing machine control device 26 like this.
In such formation, in the present embodiment, be included in the switching element 23 among this sample drive circuit 27a as power equipment, be configured in the discharge opening 22 of formation centrifugal cutter 4 and the next door of the stream 29 between the motor 2, particularly, in the outside of the joint 18 that utilizes planar surface portion to form, and for example utilize screw 30 to be fixed.
If mounting construction by such switching element 23, the part of cabinet 5 (linking department 18), constitute to form the next door of the stream between the lateral ends of upper end portion (direction of centrifugal cutter 4 with electric blowing machine 1 shown in Figure 1 as last direction time), centrifugal cutter 4 of the discharge opening 22 and the motor 2 of centrifugal cutter 4, be configured in outside because this switching element 23 is not configured in the stream 29, in the stream of cabinet 5 inside, do not upset air stream as such next door of the part of cabinet 5.Thereby, the wind path loss (stream loss) of this electric blowing machine 1 is increased by switching element 23, the heat of switching element 23 can discharge in cabinet 5.In addition, dispose the joint 18 (next door) of switching element 23 because in the air-flow that produces by centrifugal cutter 4, compare with motor 2 be positioned at away from the position at upper reaches, so it is little to be subjected to the influence of the heat that produces from motor 2.In addition, when the action of electric blowing machine 1, the temperature of flow air in the stream 29 of the joint 18 that disposes switching element 23 is positioned at the upper reaches because joint 18 is compared with motor 2, compares low with the air temperature of the downstream side of motor 2.And then, joint 18, because be the part of the cabinet 5 that is connected with ambient atmosphere, the heat that transmits from switching element 23 is difficult to store, cooling effect strengthens.In addition, such joint 18 is the different step-like portions that utilize the periphery size of the fan cover 15 and the centrifugal direction of engine case 6, forms as planar surface portion easily.In this structure, because switching element 23 can be installed on such plane, to compare with the occasion of installing at the outer circumferential face of engine case 6, the installation degrees of freedom of this switching element 23 uprises.
In addition, in the present embodiment, such joint 18 also is, with position from the discharge opening 22 of centrifugal cutter 4 to diffuser 14 subtends of the air-flow rectification of motor 2 sides that will come out from.In fact, in present inventor's experimental result, with the position of these diffuser 14 subtends on the validity of cooling effect of the switching element 23 that disposes also can confirm.
But, as the concrete configuration example of present embodiment, the joint 18 in cabinet 5, with engine case 6 are one, around the opening portion 7 by making this engine case 6, with towards peripheral direction and outstanding mode, the section lip part 31 that roughly L word shape ground is crooked and constituting.Lip part 31 in such formation because its shape is easily formed plane, switching element 23 easy to fixedly becoming of lip part 31.
Here, in Fig. 5 and Fig. 6, represent variation.Fig. 5 is a profile of the part of the electric blowing machine of variation being cut open expression, and Fig. 6 is the planimetric map (top figure) of its electric blowing machine of expression.In above-mentioned present embodiment, consider installation property, cooling effectiveness etc. and in planar surface portion (lip part 31), disposed switching element 23 by step-like formation.But, the occasion of the problem of cooling effectively if be conceived to not to be subjected to the influence of the heat that produces from stator 19, in the outside that is positioned at the electric blowing machine 1 of suction side with respect to motor 2, position with diffuser 14 subtends, for example, shown in Fig. 5 and Fig. 6, also can set switching element 23 at the outer circumferential surface section branch of fan cover 15.
Based on Fig. 7 and Fig. 8 the of the present invention the 2nd embodiment is described.A same part consistent with the part of representing in the 1st embodiment represented with prosign, and saved its explanation (described later
Among the embodiment too).
Fig. 7 is a profile of the part of the formation of the electric blowing machine of present embodiment being cut open expression, and Fig. 8 is the planimetric map of its a part of inside configuration example of expression.
Present embodiment is basically according to the 1st embodiment, uses engine case 32 to replace engine cases 6 in the present embodiment.The engine case 32 of present embodiment has end columnar structure by back board 33, with fan cover 15 sides as opening portion 34 openings and accommodate motor 2.Then, have with the periphery of engine case 32 and compare discoid framework (connected element) 35, be used for the opening portion 34 of engine case 32 inaccessible and on engine case 32, be mounted by screw 36 grades with bigger periphery.And then the side wall portion 86 that forms the sidewall of fan cover 15 is entrenched in the outer periphery portion 87 of framework 35 by being pressed into etc.Then, engine case 32 and fan cover 15 are adhered integratedly.That is, framework 35 is configured between engine case 32 and the fan cover 15.In addition, in framework 35, be used to make in the engine case 32 and the fan cover 15 interior a plurality of vent holes 37 that are communicated with, for example form the fan-shaped shape as shown in Figure 8.This vent hole 37 according to the performance of centrifugal cutter 4, is designed to guarantee the air quantity to cooling necessity of motor 2.In addition, on the substantial middle of framework 35, towards the place ahead and roughly cylindric the bearing accommodation section 13a that gives prominence to be set up.In interior all sides of bearing accommodation section 13a, bearing 11a is accommodated, and at its substantial middle place, the through hole 12 of rotor shaft 3 usefulness forms opening.
In such formation, in the present embodiment, on framework 35, compare the peripheral part 38 of the big position of periphery with engine case 32, become the discharge opening 22 of formation centrifugal cutter 4 and the joint 18 (next door) of the stream 29 between the motor 2, the switching element 23 that is located at the outside of this peripheral part 38 passes through screw 30 fixed configurations.
Therefore, utilize the occasion of present embodiment of the peripheral part 38 of framework 35, also the occasion with the 1st the embodiment who utilizes lip part 31 can be played same, effect.In this example, the peripheral part 38 of engine case 6, fan cover 15 and framework 35 constitutes cabinet 5.
And then, in such formation, the framework 35 of the form of present embodiment, the joint 18 (next door) of the stream between the discharge opening 22 of formation formation centrifugal cutter 4 and the upper end portion of motor 2, and its part is compared in the stream that is configured in upper reaches (suction side) with the motor 2 of heating.Like this, the surface area of comparing the framework 35 of the air that touches the upper reaches with the motor 2 that heat takes place increases, and the cooling effect of framework 35 increases.Therefore, on this framework 35, Gu Ding switching element 23 also is cooled effectively integratedly.
The of the present invention the 3rd embodiment is described to Figure 11 based on Fig. 9.Fig. 9 is a profile of the part of the formation of the electric blowing machine of present embodiment being cut open expression, and Figure 10 is the planimetric map of this a part of inside configuration example of expression, and Figure 11 is the generally circuit diagram roughly of the drive circuit of this electric blowing machine of expression.
Present embodiment is according to the 1st embodiment basically, and expression replaces paying the suitable example for electric blowing machine 42 that the motor 2 of brush is arranged and use brushless motor 41.
At first, the configuration example of driving control system that will contain the drive circuit 27b of the occasion of using brushless motor 41 illustrates with reference to Figure 11.Electric blowing machine 42, the brushless motor 41 that is driven in rotation by the alternating current (a.c.) that takes place from transformer (the イ Application バ one ) drive circuit 44 that DC electrical source portion 43 is driven as driving source is driven.The electric blowing machine control device 45 of the driving of control electric blowing machine 42,46a～46f is connected with drive circuit, the switching element 47a～47f of the power equipment of the power MOSFET of switch control formation transformer drive circuit 44 etc.Below, describe each several part in detail.
DC electrical source portion 43 is, the battery pack that 2 primary cells of NI-G (NiCd) battery, Ni-MH battery or lithium ion battery etc. are made up a plurality ofly, perhaps, with the commercial ac power source rectification.This VDC is supplied with at transformer drive circuit 44.
In addition, in electric blowing machine control device 45, connect the startup be used to select electric blowing machine 42, stop or the operation unit 50 of electric power, check the galvanoscopy mechanism 51 of the electric current of conduction in transformer drive circuit 44, then, check the input voltage inspection body 52 etc. of input voltage.
And then, in electric blowing machine control device 45, connect be used to check by stator 53 round the position detection mechanism 55 of position of permanent magnet of rotor shaft 54.As such position detection mechanism 55, use with 120 ° of 3 magnetic quantity transducers that are provided with at interval of electrical angle.As magnetic quantity transducer, have Hall sensor (ホ one Le セ Application サ), Hall IC (ホ one Le IC) etc.In addition, as expression especially among other the position inspecting method figure of permanent magnet, can use the method for optical profile type impulse coding or the voltage that will have been lured by the coil 49a～49c method by the inspection of voltage-phase inspection body etc.
In such formation, a plurality of switching element 47a～47f as power equipment is installed on the circuit substrate 56, and then, by screw 30 etc., the outside that disposes and be fixed on the joint 18 (lip part 31) of engine case 6.This occasion, with only 1 switching element 23 is different, a plurality of switching element 47a～47f become object, those switching element 47a～47f, as shown in figure 10, with the rotor shaft 3 of brushless motor 41 be the central position on same circumference roughly (not strictly on same circumference can) and with uniformly-spaced configuration radially yet.
By as the embodiment's of the installation arrangement of such switching element 47a～47f and the above-mentioned the 1st occasion similarly, switching element 47a～47f does not make the wind path loss of electric blowing machine 42 increase and is cooled effectively.Especially, drive circuit 27b as the brushless motor 41 of present embodiment, because be made of a plurality of switching element 47a～47f, those a plurality of switching element 47a～47f does not make the wind path loss (stream loss) of electric blowing machine 42 increase, be cooled to producing effect property.Thereby present embodiment is effective especially.In addition, because those a plurality of switching element 47a～47f, with rotor shaft 3 is the central position on same circumference roughly and with uniformly-spaced configuration radially, the difference of the cooling of those switching element 47a～47f alleviates and is cooled equably, and its cooling effect also increases.Thereby, can make the action of switching element 47a～47f, and all actions of circuitry are stabilized.
Present embodiment is illustrated for the suitable example as the 1st by way of example, still, uses the 2nd by way of example of framework 35 also can similarly be suitable for.
In addition, in those embodiments,, form inaccessible end structure being arranged and illustrating that board 21,33 also can constitute by other parts thereafter inaccessiblely of constructing as having with engine case 6,32.
In addition, in those embodiments, by switching element 23 as the three terminal bidirectional switch of power equipment, power MOSFET etc., the example explanation of 47a～47f, but be not limited to those element, follow the material that drives heating, for example, the switching element of IGBT (Insureated Gate Bipolar Transistor) etc. also is an applicable object.In addition, be not limited to the monomer of those element, the material of Unitisation or equipmentization also is an applicable object in 1 chip.
The of the present invention the 4th embodiment is described to Figure 14 based on Figure 12.Present embodiment is, as for the suitable example for electric sweeper of loading the electrical equipment that electric blowing machine 1 or 42 as constituted above is suitable for especially.
The electric sweeper 61 of present embodiment loads electric blowing machine 1.Figure 12 is the perspective view that the outward appearance of the electric sweeper 61 of expression constitutes, and Figure 13 is the vertical profile profile of its inner configuration example of expression, and Figure 14 is the profile that the part of the formation of electric blowing machine 1 that electric sweeper 61 is had is cut expression open.
In body case 70, roulette wheel 72 is freely rotated in front-side underside installation at travel direction, in the rotation of place, the rear side side of body case 62 large diameter follower 73 is set freely, electric sweeper 61 can move on the illustrated floor not having by roulette wheel 72 and follower 73.In addition, on the top of body case 62, be set up at the handgrip 74 of above-below direction free sliding.
In addition, in sweeper body 62,, be separated to form in the travel direction front side of sweeper body 62 by the dust precipitation chamber 77 that the top is open of the next door 76 with cancellate intercommunicating pore 75.At the rear of this dust precipitation chamber 77, the electric blowing machine chamber 78 of accommodating electric blowing machine 1 is separated to form.In this dust precipitation chamber 77, freely adorning collection bag 90 by storage 79 loading and unloading that in this dust precipitation chamber 77, form.
In addition, the front of next door 76, the auxiliary dust-collecting filter 91 that covers its intercommunicating pore 75 freely is equipped with in loading and unloading.Should assist dust-collecting filter 91, have framework 92 and intercalation after-filter 93 in this framework 92.
Collection bag 90 and auxiliary dust-collecting filter 91 are by the top opening loading and unloading of dust precipitation chamber 77.In addition, the rearward end of lid 71 is installed on the upper tank 70b, freely dust precipitation chamber 77 mulched grounds is formed from upper switch.
In addition, in electric blowing machine chamber 78, set electric blowing machine 1.This electric blowing machine 1 and the of the present invention the 1st embodiment's electric blowing machine 1 is same structure.Nearby the side face at the rear portion of engine case 6 is formed by opening as the electric blowing machine relief opening 94 of relief opening.Though figure is expression not, still, electric blowing machine relief opening 94 also can form at the rear of engine case 6.
In such formation, if motor 2 rotations, with its just rotation of centrifugal cutter 4 integratedly, air by this rotating suction, the suction opening portion 16 that forms from the suction side at fan cover 15 is to centrifugal cutter 4, its discharge opening 22, diffuser 14, motor 2, and then 94 conduction of electric blowing machine relief opening.
At the front end of electric blowing machine 1, chimeric for example ring-type natural rubber, elastomeric supporting body 95 on the outer periphery of front end.In addition, below upper tank 70b and above the lower tank 70a, the anterior 78a of last rib of the part of the wall of formation electric blowing machine chamber 78 and the outstanding formation of the anterior 78b of rib down.Make supporting body 95 contacts on anterior 78a of rib on those and the anterior 78b of following rib, thereby with electric blowing machine 1 positioning and fixing.
Then, by the negative pressure that the driving that utilizes electric blowing machine 1 produces, supporting body 95 distortion.Then, by this supporting body 95, the suction opening portion 16 of electric blowing machine 1 utilizes intercommunicating pore 75 to be communicated with airtightly with dust precipitation chamber 77 in the forward end of electric blowing machine 1.
Supporting body 95, section form the roughly shape of the ring-type of L word, be configured in electric blowing machine 1 and electric blowing machine chamber 78 wall between.As the material of supporting body 95, be vibration absorption component as above-mentioned natural rubber, synthetic rubber etc.In the present embodiment, because the switching element 23 as the power equipment that drives electric blowing machine 1 is directly installed in the outside of electric blowing machine 1, so when electric sweeper 61 is moved,, roughly directly conduct to switching element 23 from the step on floor, the vibration of the concavo-convex body case 70 that is subjected to.But,, can suppress conduction very low, so the reliability of switching element 23 improves from the vibration of body case 70 because by utilizing vibration absorption component to form supporting body 95.
In such formation, in the present embodiment, the switching element 23 that will contain in drive circuit 27a is fixed on the outside that is not supported the electric blowing machine 1 that body 95 covers in the suction side with respect to motor 2.Particularly, the periphery of comparing fan cover 15 with the periphery of engine case 6 forms respectively significantly, switching element 23 is configured on the lip part 31 as joint 18 that the step by those engine cases 6 and fan cover 15 forms, and for example fixing by screw 30.
In addition, in the present embodiment, because switching element 23 and supporting body 95 are approaching, supporting body 95 is subjected to the influence of the heat of switching element 23 when driving electric blowing machine 1.Thereby as the material of supporting body 95, by using the stable on heating good material of silicone rubber, ethene, acrylic rubber etc., the reliability of electric sweeper 61 improves.
In addition, similarly, the heat by taking place when driving electric blowing machine 1 from switching element 23, the wall of electric blowing machine chamber 78, promptly indeformable for body case 70, be necessary supporting body 95 is formed by heat insulating member.As heat insulating member, use natural rubber, elastomeric foaming body.Even for the foaming body of same material, because its adiabaticity is according to density and difference, so the heat that takes place according to switching element 23 is adjusted.
In the present embodiment, the embodiment's of electric sweeper 61 loadings the 1st electric blowing machine 1, but be not limited thereto, for example, also can load other embodiment's electric blowing machine.
Here, the main cause that the dust inhalation power of electric sweeper 61 is exerted an influence has several, wherein, the loss of input electric power and wind path is arranged.If input electric power is big, the dust inhalation power just improves, and carries out the switching element 23 of its electric power control, and the heating value of 47a～47f just is in the tendency that becomes big.In the excessive occasion of heating value, also input electric power can be suppressed.In addition, if the wind path loss is big, the dust inhalation power is just certain to be reduced.Thereby, in present embodiment, the wind path loss is reduced, and loading can be with the switching element 23 as power equipment, the above-mentioned electric blowing machine 1 or 42 that the cooling of 47a～47f realizes effectively, therefore effective especially for the dust suction performance that improves electric sweeper 61.
The of the present invention the 5th embodiment is described based on Figure 15.Figure 15 is, the part of the formation of the electric blowing machine 1 of present embodiment cut open the profile of expression.Present embodiment is according to the 1st embodiment basically, on the engine case 6 of the upstream side of motor 2, at switching element 23 cooling vent 100 is set nearby.That is, cooling vent 100 is arranged on, the position of the directly relative switching element 23 of the air that blows out, the air that perhaps the blows out position that (directly) causes forced convection around switching element 23.Among Figure 15 particularly the example of expression be that cooling vent 100 is provided with in the side of the engine case 6 parallel with rotor shaft 3 near floatless switch element 23.Cooling vent 100 can be one or more.
By forming such formation, can be on the surface of switching element 23 or nearby, make by the little air flows that rises of the temperature before the motor 2.Thereby, can force air cooling switching element 23, and by the heat release to engine case 6, lip part 31, the cooling effect of switching element 23 significantly improves.
The of the present invention the 6th embodiment is described based on Figure 16.Figure 16 is, the part of the formation of the electric blowing machine 1 of present embodiment cut open the planimetric map of expression.Be according to the 3rd embodiment basically in the present embodiment, still,, cooling vent 101 nearby be set at switching element 47a～47f at the lip part 31 of the upstream side of brushless motor 41.That is, cooling vent 101 is arranged on, the air that the blows out position that (directly) causes forced convection around switching element 47a～47f.Among Figure 16, Biao Shi example is particularly, and cooling vent 101 is provided with a plurality of on the lip part 31 vertical with rotor shaft 3 near floatless switch element 47a～47f.
By forming such formation, on the surface of switching element 47a～47f or nearby, make by the little air flows that rises of the temperature before the brushless motor 41.Thereby switching element 47a～47f is cooled by forcing air cooling, and then, also because can be with its heat to engine case 6 and lip part 31 heat releases, so the cooling effect of switching element 47a～47f significantly improves.
Claims (12)
1. electric blowing machine, it possesses, and has the motor of running shaft, be used to drive the drive circuit of above-mentioned motor, the power equipment that in above-mentioned drive circuit, is provided with, the centrifugal cutter of on the above-mentioned running shaft of above-mentioned motor, installing, accommodate the cabinet of above-mentioned motor and above-mentioned centrifugal cutter
Wherein, above-mentioned power equipment is configured in, and forms the outside in the next door of the discharge opening of above-mentioned centrifugal cutter and the stream between the above-mentioned motor.
2. electric blowing machine as claimed in claim 1, wherein, above-mentioned cabinet is by the engine case of accommodating above-mentioned motor, the fan cover that covers above-mentioned centrifugal cutter and have bigger periphery with respect to the periphery of above-mentioned engine case, the joint that connects above-mentioned engine case and said fans lid constitutes, and above-mentioned power equipment is configured on the above-mentioned joint.
3. electric blowing machine as claimed in claim 2, wherein, above-mentioned joint is the lip part of above-mentioned engine case.
4. electric blowing machine as claimed in claim 2, wherein, have be used to make in the said fans lid with above-mentioned engine case in the vent hole that is communicated with, above-mentioned engine case and said fans are covered the connected element that possesses other, above-mentioned joint is the part of above-mentioned connected element.
5. electric blowing machine as claimed in claim 1 wherein, has the discharge opening from above-mentioned centrifugal cutter is flowed to the diffuser that the above-mentioned air-flow that starts pusher side carries out rectification, and above-mentioned power equipment is configured in the position relative with above-mentioned diffuser.
6. electric blowing machine as claimed in claim 1 wherein, in the discharge opening that forms above-mentioned centrifugal cutter and the above-mentioned next door of the stream between the above-mentioned motor, is provided with cooling vent near above-mentioned power equipment.
7. electric blowing machine as claimed in claim 1, wherein, above-mentioned motor is brushless motor, carry out a plurality of above-mentioned power equipment of switch control for the electric current that flows to above-mentioned brushless motor, for being centered close on the roughly same circumference, and be configuration radially with the running shaft of above-mentioned brushless motor.
8. electrical equipment, it possesses electric blowing machine as claimed in claim 1.
9. electrical equipment, it possesses, and electric blowing machine as claimed in claim 1 is accommodated the electric blowing machine chamber of above-mentioned electric blowing machine, is installed in the supporting body on the suction side peripheral part of above-mentioned electric blowing machine,
Wherein, above-mentioned supporting body contacts with the wall of above-mentioned electric blowing machine chamber, and the power equipment that above-mentioned electric blowing machine possesses is configured in not the outside of the above-mentioned electric blowing machine that is covered by above-mentioned supporting body in the suction side with respect to above-mentioned motor.
10. electrical equipment as claimed in claim 9, wherein, above-mentioned supporting body is to form by vibration absorption component.
11. electrical equipment as claimed in claim 9, wherein, above-mentioned supporting body is to form by heat insulating member.
12. electrical equipment as claimed in claim 9, wherein, above-mentioned supporting body is to form by heat-resistant part.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP141344/2003 | 2003-05-20 | ||
| JP141344/03 | 2003-05-20 | ||
| JP2003141344 | 2003-05-20 | ||
| JP201695/2003 | 2003-07-25 | ||
| JP201695/03 | 2003-07-25 | ||
| JP2003201695A JP2005040251A (en) | 2003-07-25 | 2003-07-25 | Vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1573121A true CN1573121A (en) | 2005-02-02 |
| CN100545462C CN100545462C (en) | 2009-09-30 |
Family
ID=33100433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100074533A Expired - Fee Related CN100545462C (en) | 2003-05-20 | 2004-03-04 | Electric blowing machine and electrical equipment with this electric blowing machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040231090A1 (en) |
| EP (1) | EP1479335B1 (en) |
| CN (1) | CN100545462C (en) |
| DE (1) | DE602004025874D1 (en) |
Cited By (3)
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| CN104095588A (en) * | 2014-04-23 | 2014-10-15 | 苏州科比电器有限公司 | Driving device for embedded dust collector |
| CN105283672A (en) * | 2013-05-03 | 2016-01-27 | 戴森技术有限公司 | Vibration isolation mount for a centrifugal compressor |
| CN105822595A (en) * | 2015-01-09 | 2016-08-03 | 日本电产株式会社 | Electric air feeder and electric sweeper comprising same |
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| US6856113B1 (en) | 2004-05-12 | 2005-02-15 | Cube Investments Limited | Central vacuum cleaning system motor control circuit mounting post, mounting configuration, and mounting methods |
| JP3942605B2 (en) | 2004-05-17 | 2007-07-11 | 東芝テック株式会社 | Motor control device and electrical equipment |
| EP1799087A4 (en) | 2004-09-17 | 2009-08-12 | Cube Invest Ltd | Cleaner handle and cleaner handle housing sections |
| JP2006161620A (en) * | 2004-12-03 | 2006-06-22 | Toshiba Tec Corp | Motor-driven blower and assembling method thereof |
| US20060204383A1 (en) * | 2005-03-08 | 2006-09-14 | Hiroyuki Kushida | Electric vacuum cleaner |
| JP4079962B2 (en) * | 2005-08-30 | 2008-04-23 | 株式会社東芝 | Electric vacuum cleaner |
| US7958594B2 (en) | 2005-10-07 | 2011-06-14 | Cube Investments Limited | Central vacuum cleaner cross-controls |
| US7900315B2 (en) * | 2005-10-07 | 2011-03-08 | Cube Investments Limited | Integrated central vacuum cleaner suction device and control |
| CA2562810C (en) * | 2005-10-07 | 2015-12-08 | Cube Investments Limited | Central vacuum cleaner multiple vacuum source control |
| US7690075B2 (en) | 2005-10-07 | 2010-04-06 | Cube Investments Limited | Central vacuum cleaner control, unit and system with contaminant sensor |
| US20080116753A1 (en) * | 2006-11-17 | 2008-05-22 | Vito James Carlucci | Appliances with brushless motors |
| IT1393195B1 (en) * | 2008-12-22 | 2012-04-11 | Fandis S P A | FAN UNIT FOR FUME EXTRACTION, IN PARTICULAR FOR PELLET STOVE |
| EP2169236B1 (en) * | 2008-09-24 | 2012-07-04 | Fandis S.p.A. | Fan assembly for extracting fumes, in particular for a pellet stove |
| EP2330959B1 (en) * | 2008-10-06 | 2018-03-21 | Shop Vac Corporation | Vehicle with a vacuum system |
| US20120186036A1 (en) * | 2011-01-25 | 2012-07-26 | Kegg Steven W | Diffuser for a vacuum cleaner motor-fan assembly |
| US9408509B2 (en) * | 2012-03-27 | 2016-08-09 | Black & Decker Inc. | Vacuum |
| US9709068B2 (en) | 2014-02-19 | 2017-07-18 | Honeywell International Inc. | Sealing arrangement for fuel cell compressor |
| US9732766B2 (en) * | 2014-02-19 | 2017-08-15 | Honeywell International Inc. | Electric motor-driven compressor having a heat shield forming a wall of a diffuser |
| US9551494B2 (en) * | 2014-03-20 | 2017-01-24 | Haier Us Appliance Solutions, Inc. | Mounting bracket with thermal maze to reduce heat transfer rate |
| US9537363B2 (en) | 2014-04-30 | 2017-01-03 | Honeywell International Inc. | Electric motor-driven compressor having an electrical terminal block assembly |
| KR101637827B1 (en) * | 2015-04-13 | 2016-07-07 | 엘지전자 주식회사 | Vacuum cleaner |
| US10669727B2 (en) * | 2015-09-16 | 2020-06-02 | Owens Corning Intellectual Capital, Llc | Loosefill insulation blowing machine |
| US10288082B2 (en) * | 2016-11-15 | 2019-05-14 | Carnes Company, Inc. | Centrifugal fan assembly including cooling vanes and a cooling plate |
| WO2019180972A1 (en) * | 2018-03-23 | 2019-09-26 | 三菱電機株式会社 | Motor drive device, electric fan, vacuum cleaner, and hand dryer |
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| DE3303909C2 (en) * | 1983-02-05 | 1986-11-13 | Progress-Elektrogeräte Mauz & Pfeiffer GmbH & Co, 7000 Stuttgart | vacuum cleaner |
| GB2190429B (en) * | 1986-04-14 | 1990-10-17 | Hitachi Ltd | An electric blower |
| JPH0765597B2 (en) * | 1989-03-01 | 1995-07-19 | 株式会社日立製作所 | Electric blower |
| KR930001867A (en) * | 1991-07-26 | 1993-02-22 | 배순훈 | Low noise vacuum cleaner |
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2004
- 2004-03-04 CN CNB2004100074533A patent/CN100545462C/en not_active Expired - Fee Related
- 2004-04-28 DE DE602004025874T patent/DE602004025874D1/en active Active
- 2004-04-28 EP EP04252453A patent/EP1479335B1/en not_active Expired - Fee Related
- 2004-04-29 US US10/836,362 patent/US20040231090A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105283672A (en) * | 2013-05-03 | 2016-01-27 | 戴森技术有限公司 | Vibration isolation mount for a centrifugal compressor |
| CN105283672B (en) * | 2013-05-03 | 2018-04-17 | 戴森技术有限公司 | Isolating technique installed part for centrifugal compressor |
| CN104095588A (en) * | 2014-04-23 | 2014-10-15 | 苏州科比电器有限公司 | Driving device for embedded dust collector |
| CN105822595A (en) * | 2015-01-09 | 2016-08-03 | 日本电产株式会社 | Electric air feeder and electric sweeper comprising same |
| CN105822595B (en) * | 2015-01-09 | 2019-11-08 | 日本电产株式会社 | Electric blowing machine and electric dust collecting apparatus comprising the electric blowing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1479335A3 (en) | 2006-05-31 |
| EP1479335B1 (en) | 2010-03-10 |
| DE602004025874D1 (en) | 2010-04-22 |
| US20040231090A1 (en) | 2004-11-25 |
| EP1479335A2 (en) | 2004-11-24 |
| CN100545462C (en) | 2009-09-30 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160914 Address after: Tokyo, Japan Patentee after: TOSHIBA LIFESTYLE PRODUCTS & SERVICES Corp. Address before: Tokyo, Japan Patentee before: TOSHIBA TEC Kabushiki Kaisha |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 |