CN100577078C - AC/DC hand portable wet/dry vacuum cleaner having improved portability and convenience - Google Patents
AC/DC hand portable wet/dry vacuum cleaner having improved portability and convenience Download PDFInfo
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- CN100577078C CN100577078C CN200610114811A CN200610114811A CN100577078C CN 100577078 C CN100577078 C CN 100577078C CN 200610114811 A CN200610114811 A CN 200610114811A CN 200610114811 A CN200610114811 A CN 200610114811A CN 100577078 C CN100577078 C CN 100577078C
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Abstract
A wet/dry utility vacuum with a canister, a powerhead assembly with a fan, a shut-off device that prevents the fan from drawing liquids into the fan inlet when a volume of the liquid in the canister exceeds a predetermined volume. The powerhead assembly includes a controller that permits the utility vacuum to be operated in a desired power mode so that the user may employ either an AC power source or a DC power source, such as a battery pack, for example. In some applications, the battery pack may be interchangeable with the battery packs of various cordless tools, including drill/drivers and saws. A tool set and a method for operating a battery-powered tool set are also provided.
Description
The application's name that to be Black ﹠ Decker Inc submit to Patent Office of the People's Republic of China on November 12nd, 2003 be called " have the AC/DC of improved light convenience portable wet/dry vacuum cleaners " application number be dividing an application of 200310114287.2 application for a patent for invention.
Technical field
Relate generally to vacuum cleaner device of the present invention particularly relates to a kind of AC/DC with improved convenience and performance and drives portable wet/dry vacuum cleaners.
Background technology
The generally well-known vacuum cleaner device that can pick up wet and dry substance is called as wet/dry vacuum cleaners.This wetting/dry vacuum cleaners is known in the art, and can buy the vacuum cleaner of various sizes and structure on market.The current propensity to consume is brought significant cost pressure to the wet/dry vacuum cleaners that can buy on the market, and same, current many manufacturers have made the low-cost device than low capacity of low side, and/or the expensive professional device of high-end higher capacity.
Often for example the erector in the dwelling construction, Service Technicians and commercial staff use the low-cost device of low side by the professional user.These professionals generally need clean its working site before leaving for its next job site, thereby they often expect that these devices have reduced size and feature easily.Yet these install known some defectives that have.
Such defective relates to the convenience of known wetting/dry vacuum cleaners, and particularly its assembling time necessary is longer, and between transportation or operating period, what flexible pipe disconnected frequently and accessory lacks is frequent.Since known wet/the dry vacuum cleaners volume is big and accessory is many, the professional user often by special process come to or from working site transportation of wet/dry vacuum cleaners.
Another defective relates to the property obtained at given working site electric energy.The problem that the working site often runs into is not have the available electric energy from electric utility.In some cases, might obtain electric energy by not only long but also heavy extending wire from neighbouring (for example neighbours).As an alternative, need mobile generator.For the professional user, the inconvenience of heavy extending wire and the costliness of mobile generator and to be inconvenient to be very undesirable consider that particularly the working site that the professional user is everlasting specific uses wet/dry vacuum cleaners less than 10 minutes.
And another defective relates to the filtration system of known wetting/dry vacuum cleaners.These filtration systems typically adopt disposable filter, and this filter is fixedly mounted on the lid of vacuum cleaner, and perhaps on other supporting construction, fan is installed and covered to this supporting construction around fan.When stopping up, disposable filter is the limit air fan of flowing through seriously, and this will seriously hinder the ability that wet/dry vacuum cleaners picks up chip.Yet in the time of most of, the professional user can't replace filter, and therefore, wet/dry vacuum cleaners is used under poor efficiency simply.Other defective of known filtration system comprises the inconvenience and the inadequate filtration of keeping in repair filter, maintenance will be dismantled wet/dry vacuum cleaners usually, so that expose the content of filter tank in the working site, inadequate filtration can cause when wet/dry vacuum cleaners starts, and dust is discharged from wet/dry vacuum cleaners.
Therefore, this area needs a kind of wet/dry vacuum cleaners with improved convenient performance.
Summary of the invention
In one form, the invention provides a kind of practical vacuum cleaner, it comprises filter tank, unit head assembly, shutoff device, electric wire and battery pack.The unit head assembly is connected with filter tank, and comprises fan, is used for the motor of rotary power being provided and being used for distributing to motor the power supply of electric energy to fan.Shutoff device connects with the unit head assembly, and is configured for preventing that fan is drawn into liquid in the inlet of fan when the liquid capacity in the filter tank surpasses predetermined volumes.Electric wire is connected with power supply, and is configured to make selectively power supply to be connected with AC power.Battery connects with power supply, and dc source is provided, and can not power to power supply when AC power obtains alternating current with convenient power supply.
In another form, the invention provides a kind of tool set, it has battery pack, power tool and practical vacuum cleaner.Power tool comprises container assemblies, is used to make battery pack removably to be connected with power tool.Practical vacuum cleaner has filter tank, unit head assembly and shutoff device.The unit head assembly is connected with filter tank, and has fan, is used for the motor of rotary power being provided and being used for distributing to motor the power supply of electric energy to fan.Shutoff device connects with the unit head assembly, and is configured for preventing that fan is drawn into liquid in the inlet of fan when the liquid capacity in the filter tank surpasses predetermined volumes.Power supply comprises container assemblies, is used for removably holding battery pack.Battery pack can with power tool and practical vacuum cleaner in any be connected selectively so that provide power supply to it.
In another form, the invention provides a kind of practical vacuum cleaner, it comprises filter tank, unit head assembly, shutoff device and battery.The unit head assembly is connected with filter tank, and comprises fan, is used for the motor of rotary power being provided and being used for distributing to motor the power supply of electric energy to fan.Shutoff device connects with the unit head assembly, and is configured for preventing that fan is drawn into liquid in the inlet of fan when the liquid capacity in the filter tank surpasses predetermined volumes.Battery connects with power supply, and it is to be used for to the power supply direct current power source supplying power.
By following detailed, the scope of application of the present invention is clearer.Should be appreciated that detailed specification and particular instance represent the preferred embodiments of the present invention, it is only in order to illustrate, but not is used to limit the present invention.
Description of drawings
With reference to the accompanying drawings, by following description and appended claims, other advantage of the present invention and characteristics will be clearer, wherein:
Fig. 1 is the perspective view according to the wet/dried practical vacuum cleaner of instruction structure of the present invention;
Fig. 2 is the decomposition view of wet/dry vacuum cleaners of Fig. 1;
Fig. 3 is the schematic diagram of a part of wet/dry vacuum cleaners that is shown specifically Fig. 1 of controller and charging circuit;
Fig. 4 is shown specifically the cross sectional view of a part of wet/dry vacuum cleaners of Fig. 1 of container assemblies;
Fig. 5 is the schematic diagram of wet/dry vacuum cleaners of Fig. 1, and it illustrates when wetting/stream when dry vacuum cleaners is used under the vacuum cleaning pattern;
Fig. 6 is the schematic diagram of wet/dry vacuum cleaners of Fig. 1, and it illustrates when wetting/stream when dry vacuum cleaners is used under the blowing pattern;
Fig. 7 is the cross sectional view according to second kind of wet/dry vacuum cleaners of instruction structure of the present invention;
Fig. 8 is the cross sectional view according to the third wet/dry vacuum cleaners of instruction structure of the present invention;
Fig. 9 is and the similar cross sectional view of Fig. 8 that it illustrates unit head assembly that is in the rising state and the filter tank assembly of removing from shell;
Figure 10 is the cross sectional view according to the 4th kind of wet/dry vacuum cleaners of instruction structure of the present invention;
Figure 11 is and the similar cross sectional view of Figure 10, the filter tank assembly is shown is removed from shell;
Figure 12 is the cross sectional view according to the 5th kind of wet/dry vacuum cleaners of instruction structure of the present invention;
Figure 13 is similar but the cross sectional view that second kind of filter is in the state of removing is shown with Figure 12;
Figure 14 is the perspective view according to the 6th kind of wet/dry vacuum cleaners of instruction structure of the present invention;
Figure 14 A is the front view of wet/dry vacuum cleaners of Figure 14;
Figure 15 is the longitudinal cross-section view of wet/dry vacuum cleaners of Figure 14;
Figure 16 is the amplifier section that is shown specifically Figure 15 of cooling ingate;
Figure 17 is the amplifier section that is shown specifically the Figure 15 in coolant outlet hole;
Figure 18 is the schematic diagram of a part of wet/dry vacuum cleaners that is shown specifically Figure 14 of controller;
Figure 19 is the perspective view of wet/dry vacuum cleaners of Figure 14, and lid that is in the decline state and the battery pack of separating from battery box are shown;
Figure 20 is the schematic diagram of a part of wet/dry vacuum cleaners that is shown specifically Figure 14 of power supply;
Figure 21 is the schematic diagram of a part of wet/dry vacuum cleaners that is shown specifically Figure 14 of switching device;
Figure 21 A is and the similar schematic diagram of Figure 21 that it illustrates the controller of alternative constructions;
Figure 22 is the amplifier section that is shown specifically Figure 15 of roughing efficiency air filter;
Figure 23 is the top plan view of roughing efficiency air filter;
Figure 24 is the side elevation view of a part that is shown specifically the roughing efficiency air filter of the structure that keeps kick;
Figure 25 is the bottom view of a part of wet/dry vacuum cleaners of Figure 14 that is shown specifically the shell of unit head assembly;
Figure 26 is the side elevation view of a part that is shown specifically the shell of one of them unit head assembly that keeps slit;
Figure 27 is the top plan view of a part of wet/dry vacuum cleaners of Figure 14 that is shown specifically the link of hose;
Figure 28 is the back elevation view of wet/dry vacuum cleaners that Figure 14 of the hose that is in the first harvesting state is shown;
Figure 29 be illustrate be in second the harvesting state hose with the similar view of Figure 28;
Figure 30 is a part of top view that the wet/dry vacuum cleaners that is in harvesting state electric wire is shown; With
Figure 31 is the perspective view according to the tool set of instruction structure of the present invention.
The specific embodiment
Referring to accompanying drawing 1, according to big body and function Reference numeral 10 expressions of portable wet/dry vacuum cleaners of instruction structure of the present invention.In illustrated specific example, vacuum cleaner 10 comprises unit head assembly 12, filter tank assembly 14, filtration system 16, hose 18, a plurality of traditional hose end connectors 20, braces 22, the first electric wires, 24, the second electric wires 26 and battery pack 28.
Referring to Fig. 2, unit head assembly 12 removably is connected with filter tank assembly 14 in addition, and comprises shell 40, motor 42, fan 44 and controller 46.Shell 40 defines 50, one 52, one handles 54 of outlet of an inlet and a center cavity 56, and motor 42, fan 44 and controller 46 are contained in this center cavity.Inlet 50 can be communicated to filter tank assembly 14 on first side of filtration system 16, can be communicated to filter tank assembly 14 on second side of filtration system 16 and export 52.The air that flows into inlet 50 flows in the filter tank assembly 14, and before outlet 52 is flowed out in guiding through filtration system 16.Motor 42 is connected with fan 44 so that the rotation of the output shaft (not shown) by motor 42, and this motor 42 and fan 44 cooperations so that air is blown out to outside the outlet 52, thereby suck air in the unit head assembly 12 by inlet 50.
In Fig. 3, controller 46 diagrams preferably include first electrical socket 60, the second electrical sockets 62, container assemblies 64, power supply 66, power switch 68 and the charging circuit 70.Each first and second electrical socket 60 and 62 and container assemblies 64 be electrically connected with power supply 66, and be configured to conduct electrical power, this will be discussed in more detail below.Power supply 66 is electrically connected with motor 42 and power switch 68 in a conventional manner, makes electric current selectively or does not make electric current flow to motor 42 to allow the user.
First electric wire 24 preferably includes plug end 74 and first traditional tip side 78 of traditional band point fork, and this plug end 74 is configured to be electrically connected with traditional outlet 76, and this tip side 78 is configured to be electrically connected with first electrical socket 60.Therefore, first electric wire 24 allows the user of wet/dry vacuum cleaners 10 that power supply 66 is connected with alternating current (AC) power supply.
Second electric wire 26 preferably includes traditional column plug end 84, second tip side 88 that this plug end 84 is configured to be electrically connected with traditional lighter socket 86 of automobile and is traditional, and this tip side 88 is configured to be electrically connected with second electrical socket 62.Therefore, second electric wire 26 allows the user that power supply 66 is connected with direct current (DC) power supply, for example the power system of automobile and battery.
In the example of Fig. 3 and 4, container assemblies 64 is expressed as by flexible gaskets 90 and shell 40 and flexibly connects.Preferably, for example make by rubber or other elastomers by the elastomeric material of flexibility for packing ring 90.Container assemblies 64 comprises shell of tank 94, this shell of tank 94 is configured to hold battery pack 28, with connector 96, these connector 96 floating grounds are arranged in the shell of tank 94, with box lunch wet/dry vacuum cleaners 10 at utmost reduces the impact that battery pack 28 is born when descending.Connector 96 has the plurality of terminals (not shown), and this terminal has the related terminal (not shown) contacting structure with battery pack 28.Preferably, battery pack 28, terminal, shell of tank 94 and connector 96 are constructed in disclosed mode in the United States Patent (USP) 5144217, and all the elements of this patent disclosure are hereby incorporated by.Therefore, container assemblies 64 allows users that power supply 66 is connected with battery pack 28, like this, for example when AC the DC power supply can not obtain or inconvenient near the time, wet/dry vacuum cleaners 10 do not need first and second electric wires 24 and 26 to be attached thereto and can to operate.And preferably, power supply 66 is with mode well known in the art and the battery pack coupling with different voltages (for example 18V, 14V, 12V, and/or 9.6V).Those of ordinary skill in the art will recognize any manually or automatics can be used to select to wet/power supply of dry vacuum cleaners 10.For example, traditional rotary switch can be set,, manually select between DC electricity (from second electric wire 26) and the battery pack 28 to allow the user at the AC electricity.Alternatively, can adopt automatic switch (comprising transistor or any other suitable electronic device), so that a kind of power supply type of power supply 66 " search ", for example at first be AC, if it does not exist, then then search " DC " electricity from second electric wire 26, find battery pack 28 then.
In Fig. 3, charging circuit 70 is connected with container assemblies 64 with power supply 66 in mode well known in the art.Charging circuit 70 allows to give the batteries charging with different voltages, and this is known in the art.An example of suitable charging circuit is open in United States Patent (USP) 6427070, and its disclosed full content is hereby incorporated by.
Therefore, when motor 42 does not move, by battery pack 28 is placed in the container assemblies 64, so that the terminal of connector 96 is electrically connected with the associated terminal of battery pack 28, and provide another kind of power supply by a dewing/dry vacuum cleaners 10 in first and second electric wires 24 and 26, like this, the user gives battery pack 28 chargings.In case charging is finished, then, battery pack 28 can be taken out from container assemblies 64, and is used for to another device power supply, and this device for example is the heavy audio frequency apparatus in the United States Patent (USP) 6427070, or the wireless drill bit/driver in the United States Patent (USP) 6431289.
Get back to Fig. 2, filter tank assembly 14 preferably includes filter tank 100 and locking system 102, and this locking system 102 is fixed on filter tank 100 on the unit head assembly 12 releasedly.Illustrated specific filter tank has about two gallons capacity, alternately has either large or small capacity but those skilled in the art will recognize filter tank 100.
Roughing efficiency air filter 114 can comprise a kind of filtration device structure (not shown), and it is formed by rigid plastic material and fabric filtration material, and this fabric filtration material centers on the side at least of filtration device structure fully.The fabric filtration material is preferably formed by filtering material capable of washing, allowing when being covered with dust all over or during dirt, roughing efficiency air filter 114 is cleaned, rather than loses or changes.Yet, be familiar with as those of ordinary skill in the art, roughing efficiency air filter 114 can be made by any suitably filtering material, and this material comprises out chamber (open-cell) foamed material or traditional filter paper (roughing efficiency air filter 114 is disposable in this case).As selection, also can adopt pre-filtering structure (not shown).Suitable pre-filtering structure comprises woven wire or plastics sieve, or opens the chamber foamed material, this open the chamber foamed material the air stream of carrying dust be used for collecting dust and dirt (for example dried facing interior wall dust) before roughing efficiency air filter 114 contacts.
Referring to Fig. 1 and 2, the preferably flexible vacuum hose of hose 18, vacuum hose is fixedlyed connected with inlet 50.And preferably, hose 18 to small part is retractable in the inlet 50, so that be provided for storing the convenient means of hose 18.As an alternative, hose 18 can selected on the basis removably friction fit (being used for vacuum cleaning) or exported for 52 (being used for blowing) on inlet 50.
But the far-end friction fit of hose 18 is on any hose end connector 20.This hose end connector 20 is known in the art, and therefore, the detailed argumentation of its structure and use need not provide at this.For preventing that hose end connector 20 from losing, in shell 40 and/or filter tank 100, can form some receiving channels 140.Receiving channel 140 can be configured to be frictionally engaged with one of them relevant hose end connector 20.When not in use, each hose end connector 20 can be connected with shell 40 and/or filter tank 100 by its receiving channel that is associated 140.
Optionally braces 22 is connected with unit head assembly 12, and allow the user of wet/dry vacuum cleaners 10 that this unit is carried on the back on its shoulder, so that its hand can be used for other task, comprise/during dry vacuum cleaners 10 transportation miscellaneous equipment or handle hose 18 wet when using.In illustrated embodiment, braces 22 is connected with handle 54, this handle and shell 40 monolithic moldings.
As mentioned above, hose 18 is preferably fixedlyed connected with inlet 50, and so can be connected with outlet 52, and like this, wet/dry vacuum cleaners 10 (for example by hose 18 is connected with outlet 52) in a conventional manner is used as air blast.As Fig. 1, shown in 5 and 6 the bests, wet/dry vacuum cleaners 10 can comprise valve module 150, and this valve module 150 is controlled air selectively and flow to fan 44.Particularly, valve module 150 can be the dibit cross valve, and this dibit cross valve comprises actuator 154 and valve element 156.In illustrated specific embodiment, actuator 154 is rotary actuators, and it can move between the primary importance 160 and the second place 162.Valve element 156 is connected so that rotate with actuator 154, and in the time of like this in actuator 154 is positioned at primary importance 160, air passes through filtration system 16 from 50 suctions that enter the mouth, and enters fan 44 in the above described manner.When actuator 154 was positioned at the second place 162, valve element 156 was provided by (for example in the example that provides for rotation), so that outlet 52 is communicated with the entrance side fluid of filtration system 16, and entered the mouth and 50 was communicated with the discharge side liquid of fan 44.
Be familiar with as those of ordinary skill in the art, the different parts of wet/dry vacuum cleaners 10, for example motor 42, and fan 44 and roughing efficiency air filter 114 can mode well known in the art construct and/or arrange.This parts, structure and layout are discussed in United States Patent (USP) 6363574 as shown and for example, and this patent is hereby incorporated by.
With reference to figure 7, the second kind of wet/big body and function Reference numeral of the dry vacuum cleaners 10a that constructs according to instruction of the present invention represents.Although schematically illustrate, except filtration system 16a and filter tank assembly 14a form whole different, wet/dry vacuum cleaners 10a substantially with Fig. 1 wet/dry vacuum cleaners 10 is similar.Particularly, air compartment 110a is connected with filter tank 100a, and roughing efficiency air filter 114a covers air compartment 110a fully.When unit head assembly 12a was connected with filter tank assembly 14a, packing ring 170 is pressurized between roughing efficiency air filter 114a and unit head assembly 12a, so that make roughing efficiency air filter 114a and unit head assembly 12a sealed engagement.
In the time will emptying filter tank 100a, unit head assembly 12a is gone up release from filter tank 100a, roughing efficiency air filter 114a is removed from filter tank 100a, and filter tank 100a is turning to empty its content.Similar with roughing efficiency air filter 114, roughing efficiency air filter 114a is preferably constructed by filtering material capable of washing and that re-use to small part, so that eliminate the needs of changing filter.This structure is favourable, because all dirty parts place together, and the state of when being removed, being kept upright.Compare with known wet/dry vacuum cleaners that wherein filtration system is connected with unit head, when unit head assembly 12a was removed, dust and other chip kept being contained in the filter tank 100a.And, remove and/or change roughing efficiency air filter 114a fast and efficient because do not use securing member with respect to unit head assembly 12a with roughing efficiency air filter 114a fix in position.
With reference to figure 8 and 9, another the wet/big body and function Reference numeral of the dry vacuum cleaners 10b that constructs according to instruction of the present invention represents.Although schematically illustrate, except unit head assembly 12b pivotly (for example by hinge 179) and the shell 180 that accommodates filter tank assembly 14b connect different, wet/dry vacuum cleaners 10b substantially with Fig. 7 wet/dry vacuum cleaners 10a is similar.
When filter tank assembly 14b removed or insert in the shell 180, unit head assembly 12b upwards pivoted as shown in Figure 9.In case when filter tank assembly 14b was sealed in the shell 180, unit head assembly 12b pivoted downwards, so that by the packing ring 182 and filter tank 100b sealed engagement of unit head assembly 12b carrying.Those of ordinary skill in the art will recognize that packing ring 182 is alternately carried by filter tank 100b.Traditional contracting decided mechanism 183 and be can be used to unit head assembly 12b is fixed on the filter tank assembly 14b.
With reference to Figure 10 and 11, the 4th kind of wet/big body and function Reference numeral of the dry vacuum cleaners 10c that constructs according to instruction of the present invention represents.Although schematically illustrate, except unit head assembly 12c and the shell 180c that accommodates filter tank assembly 14c fixedly connected different, wet/dry vacuum cleaners 10c substantially with Fig. 8 and 9 wet/dry vacuum cleaners 10b is similar.Therefore, slip into or leave shell 180c by making filter tank assembly 14c, filter tank assembly 14c is inserted into shell 180c neutralization and removes from shell 180c.
With reference to Figure 12 and 13, another the wet/big body and function Reference numeral of the dry vacuum cleaners 10d that constructs according to instruction of the present invention represents.Except medium effeciency filter 116d is used for filtration system 16d difference, wet/dry vacuum cleaners 10d substantially with Figure 10 and 11 wet/dry vacuum cleaners 10c is similar.Similar with medium effeciency filter 116 shown in Figure 5, medium effeciency filter 116d can be positioned between fan 44 and the roughing efficiency air filter 114d, and has thinner hole/net, and therefore, when wet/dry vacuum cleaners 10d operated, dirt and dust can not discharged from exporting 52.Advantageously, under the situation of not removing filter tank assembly 14d, medium effeciency filter 116d can be removed and clean or change.
With reference to Figure 14, the 6th kind of wet/big body and function Reference numeral of the dry vacuum cleaners 10e that constructs according to instruction of the present invention represents.Illustrated vacuum cleaner 10e preferably includes unit head assembly 12e, filter tank assembly 14e, filtration system 16e, hose 18e, a plurality of traditional hose end connector 20e, braces 22e, electric wire 24e and battery pack 28e.
Referring to Figure 15, unit head assembly 12e removably is connected with filter tank assembly 14e, and can comprise shell 40e again, motor 42e, fan 44e and controller 46e.Shell 40e can limit one or more inlet 50e, outlet 52e, and handle 54e and center cavity 56e are equipped with motor 42e in this center cavity 56e, fan 44e and controller 46e.Inlet 50e is communicated to filter tank assembly 14e on first side of filtration system 16e, and outlet 52e guides air to leave unit head assembly 12e on second side of filtration system 16e.The air that flows into inlet 50e can flow in the filter tank assembly 14e, and before outlet 52e is flowed out in guiding through filtration system 16e.Motor 42e and the fan 44e cooperation that is connected with the output shaft (not shown) of motor 42e with rotation so that preferably air is blown out to outside the outlet 52e, thereby suck air in the filter tank assembly 14e by inlet 50e.
In the example that is provided, shell 40e can be configured to help motor 42e cooling in its operating period.Particularly, shell 40e can be constructed with one or more coolings ingate 500 and one or more coolant outlets hole 502, and cooling ingate 500 and coolant outlet hole 502 all are communicated with center cavity 56e fluid, and this will be discussed in more detail below.In the embodiment that provides, adopt single cooling ingate 500 and single coolant outlet hole 502.Referring to figs. 16 and 17, cooling ingate 500 is illustrated as the arranged concentric around inlet 50e, thereby has covered its position on shell 40e, can be positioned on other different position of shell 40e but those of ordinary skill in the art can recognize cooling ingate 500.Coolant outlet hole 502 can be positioned in the part of the shell 40e that defines outlet 52e.In the example that provides, stretch through the afterbody 510 of projection 512 in coolant outlet hole 502, and this projection 512 forms on the wall 514 of outlet 52e, and facing one direction, so that the longitudinal axis of projection 512 is in substantially parallel relationship to the air-flow direction through outlet 52e.
The specific vacuum cleaner 10e that is provided was configured such that in its operating period, air is flowed through and is exported 52e, so that form zone 520 near the low static pressure in coolant outlet hole 502, thereby make air from the center cavity 56e coolant outlet hole 502 of flowing through, it merges with the air of the outlet 52e that flows through at this.The air that leaves center cavity 56e makes ozone be drawn in the center cavity 56e through supercooling ingate 500.The exchange of the air in center cavity 56e allows the heat of motor 42e discharging higher level.Particularly, the air of the center cavity 56e that flows through provides air-flow, so that this air-flow is mobile against motor 42e, thereby allows motor 42e to utilize advection heat conduction mechanism discharges heat.
In Figure 18, illustrated controller 46e preferably includes container assemblies 64e, power supply 66e, power switch 68e and optional charging circuit 70e.Container assemblies 64e is electrically connected with power supply 66e, and is configured to conduction, and this will be discussed in more detail below.Power supply 66e is electrically connected with motor 42e, and power switch 68e allows the user to make electric current maybe can not flow to motor 42e selectively.
Container assemblies 64e substantially can be similar with the container assemblies 64 of Fig. 3 and 4, therefore, do not need detailed argumentation below.In the example that provides, the container assemblies 64e that represents among Figure 19 is arranged in the battery case 550, and this battery case 550 is connected or monolithic molding with shell 40e.Lid 552 can be articulated and connected with battery case 550, and can move between a closing position (Figure 14) and open position, at this closing position closing battery box 550 basically, empties battery case 550 basically at this open position.The cam lock mechanism 556 of top, center can be used to make selectively lid 552 to remain on closing position.Also can adopt optional battery pack packing ring 560 and leaf spring 562.Battery pack packing ring 560 can be arranged between battery pack 28e and one or two container assemblies 64e and the battery case 550 (being the battery pack packing ring 560 in the example of back), and leaf spring 562 can be connected with lid 552, and be positioned to battery pack 28e is pushed into container assemblies 64e and electrically contact, and when being positioned at closing position, lid 552 contacts with 560 sealings of battery pack packing ring.No matter whether have the air vent 564 (Figure 25) through battery case 550 and/or lid 552 stretching, extensions, battery pack packing ring 560 stops liquid to enter container assemblies 64e and shell 40e inside.
Container assemblies 64e allows the user that power supply 66e is connected with battery pack 28e, therefore, when for example AC power supplies can not obtain or inconvenient near the time, wet/dry vacuum cleaners 10e can operate.And preferably, power supply 66e and battery pack compatibility with different voltages (for example 18v, 14v, 12v and/or 9.6v).In other words, power supply 66e preferably is configured such that first battery pack with first output voltage and the commutative use of second battery pack with second output voltage different with first output voltage, so that give power supply 66e power supply.In the specific example that provides, power supply 66e comprises AC/DC converter 600 and DC/DC converter 602, and this as shown in figure 20.AC/DC converter 600 preferably has electromagnetic interference and suppresses module 610, is used for the alternating current from electric wire 24e input is carried out the rectifier 612 of rectification and the rectified current (being direct current) that is used for rectifier 612 is provided is carried out pulse modulated switch mode power 614.Switch mode power 614 switches (promptly opening and closure) are with the output of control to motor 42e.By controlling the duration of every kind " opening " and " pass " state, switch mode power 614 can provide the electric energy of required voltage to motor 42e.Backfeed loop 620 can be included among the power supply 66e selectively, so that control voltage more accurately.Similarly, DC/DC converter 602 can comprise the switch mode power 614 similar switch mode powers 624 with AC/DC converter 600, these switch mode power 624 switches (promptly open and closed) with the output of control to motor 42e, thereby provide the electric energy of required voltage to motor 42e.As a result, need not to consider the voltage of battery pack 28e, the electric energy of identical voltage can be provided to motor 42e.
With reference to figure 21A, it illustrates a kind of power supply 66e ' of alternative constructions.Power supply 66e ' connects with AC/DC converter 600 with the different switching devices 630 that are of power supply 66e of Figure 21.Particularly, switching device 630 is illustrated as has the first and second contact 630-2, the relay 630-1 of 630-3, and described contact is used for controlling electric current.Relay 630-1 diagram is in normal condition, and wherein the lead 630-4 from motor 42e is electrically connected with the first contact 630-2, and is electrically connected with DC/DC converter 602 (by power switch 68e) successively.Relay 630-1 remains on normal condition, unless AC/DC converter 600 is to relay 630-1 power supply (power switch 68e is provided in the example that is providing).When vacuum cleaner 10e is connected with alternating-current power supply, and power switch 68e connects, relay 630-1 makes the lead 630-4 of motor 42e be electrically connected with the second contact 630-3, and the second contact 630-3 is electrically connected with AC/DC converter 600 (by power switch 68e).Those of ordinary skill in the art from the disclosure content as can be known, at it in a broad sense, it is slightly different that power supply can be configured to, therefore, above-mentioned specific example and the diagram among the application are only for typical example, but not any restriction.
Turn back to Figure 18, charging circuit 70e can be connected with container assemblies 64e with power supply 66e.Charging circuit 70e allows to the batteries charging with different voltages, and this is known in the art.A kind of example of suitable charging circuit is open in United States Patent (USP) 6427070 and 6496688, and its disclosed content is hereby incorporated by.
Therefore, when power supply 66e by battery pack 28e is put into container assemblies 64e, so that the terminal (not shown) of the connector of container assemblies 64e (not shown) engages with relevant terminal (not shown) electricity of battery pack 28e, thereby is connected with alternating-current power supply, the user can give battery pack 28e charging.In case charging is finished, then, battery pack 28e can be used to power to vacuum cleaner 10e, or taken out from container assemblies 64e, be used for to other device power supply, for example heavy audio frequency apparatus in the United States Patent (USP) 6427070, or the wireless drill/driver in the United States Patent (USP) 6431289.
Concise and to the point shell 40e can be configured to limit a groove 41e with reference to figure 14A, and power switch 68e is arranged among this groove 41e.In the specific example that provides, power switch 68e is a toggle switch.
Referring to Figure 14, filter tank assembly 14e preferably includes the 102e of cam lock system of filter tank 100e and top, center, the 102e of cam lock system of this top, center adopts the cam lock member 700 of top, a pair of center, so that releasedly filter tank 100e is fixed on the unit head assembly 12e.Illustrate specific filter tank 100e and have about two gallons capacity, in alternative, can have either large or small capacity but those of ordinary skill in the art will recognize filter tank 100e.Preferably, filter tank assembly 14e also comprises holder emptying apparatus 101e, and it allows liquid to empty from the inside of filter tank 100e, and can not remove unit head assembly 12e from filter tank assembly 12e.Holder emptying apparatus 101e can be valve (not shown), for example ball valve or gate valve.In the specific example that provides, holder emptying apparatus 101e comprises thread protrusion 101-1, packing ring 101-2 and thread cap 101-3.Thread protrusion 101-1 outwards stretches from filter tank 100e, and forms screw thread around at least a portion of its outer surface.Thread cap 101-3 comprises and is configured to the internal thread that is threaded with thread protrusion 101-1.Packing ring 101-2 is arranged between the inner surface of the end of thread protrusion 101-1 and thread cap 101-3, and described packing ring 101-2 is made by the bending elasticity material.As thread cap 101-3 during closely against thread protrusion 101-1, the end sealed engagement of packing ring 101-2 and thread protrusion 101-1 and thread cap 101-3.
Opposite with the filtration system 16 of Fig. 1, filtration system 16e can be configured to be carried by unit head assembly 12e fully, and this is shown in Figure 15.Filtration system 16e comprises shearing device 740, roughing efficiency air filter 114e and optional medium effeciency filter 116e.In the example that provides, medium effeciency filter 116e can be and fan inlet 742 fiber material cushions that are connected, but it also can be made by net or sieve material, perhaps according to the whole omission of the filter capacity of roughing efficiency air filter 114e.And medium effeciency filter 116e can be connected with unit head assembly 12e at fan 44e further along (downstream).
Shearing device 740 connects with unit head assembly 12e, and is configured to when the liquid volume in the filter tank assembly 14e surpasses a predetermined volumes, prevents that fan 44e is drawn into liquid in the fan inlet 742.Shearing device 740 can constructed in various ways, and can for example prevent that electric energy is transferred to motor 42e, perhaps responds and closes fan inlet 742 when liquid volume among the filter tank assembly 14e is increased on the predetermined.In the specific example that provides, shearing device 740 comprises air compartment 110e and float 112e.Air compartment 110e can be hollow cage columnar structure, and it allows air to flow through wherein, and is used for along vertical substantially axial maintenance and guiding float 112e.In illustrated example, be set to when the liquid in the filter tank 100e reaches predetermined water level, the float 112e of hollow ball is configured to raise automatically in air compartment 110e, to close fan inlet 742e (thereby stoping air to flow into fan 44e also through unit head assembly 12e).Those of ordinary skill in the art from the disclosure content as can be known float 112e can be configured to non-sphere or even closed shape.For example, float 112e can be roughly cylindricality, and it is an end closure only.
Roughing efficiency air filter 114e can comprise filter body 760, central support structure 762, lower endcaps 764 and upper end cap 766.Filter body 760 can comprise that paper or fabric form by suitable filtering material.Yet in specific example, filter body is formed by the pleated material, and this pleated material can see through air and steam, but opposing liquid infiltration or pass, therefore, filter body 760 for example can easily be cleaned by cleaning.Selectively, the material of making filter body 760 can also be hydrophobic and/or oleophobic material, and therefore, water and/or oil that filter body 760 can not be inhaled in the filter tank assembly 14e drench.Our test shows that a kind of specially suitable material of filter body 760 comprises the filter medium supporting that is adhered on the porous expansion PTFE film, and a kind of so suitable material marking is by W.L.Gore; Associates, business address is at Elkton, and the Gore that the DelawareCorporation of Maryland sells wets/dried filter product.Optionally, filter body 760 can be configured to provide HEPA (high efficiency particle air) to filter or ULPA (ultra-low penetration air) filtration.
The size of sealing and bonding structure 774 is fit to engage with corresponding filter gasket 780, and this filter gasket 780 is formed by elastomeric material, and around the fan of the lower surface of close shell 40e 742 layouts that enter the mouth.In illustrated certain embodiments, filter gasket 780 is fixedlyed connected with shell 40e, but replacedly fixedlys connected with upper end cap 766, perhaps, removably is connected with shell 40e or upper end cap 766.
Referring to Figure 25 and 26, keep kick 776 can be configured to engage with corresponding maintenance slit 790 coupling ground in addition, this maintenance slit 790 forms in shell 40e in the zone near fan inlet 742.In the specific example that provides, keep kick 776 to be illustrated as and have flat substantially upper surface 792, inclined lower surface 794 and junction surface 796.
Keep slit 790 can be formed in the inner surface 800 of the collar 802, this collar 802 is from the basal surface vertical stretching substantially of shell 40e, and enters the mouth 742 concentric with fan.Each keeps slit 790 can be L shaped substantially, has first 810 and second portion 812, and this first is configured to axially admit corresponding one of them to keep kick 776, and this second portion stretches around the part of the circumference of the collar 802.Second portion 812 comprises a composition surface 814, and this composition surface 814 is configured to engage with the lower surface 794 of one of them corresponding maintenance kick 776.In the example that provides, composition surface 814 is gradient, and comprises notch-like maintaining part 816, and this notch-like maintaining part 816 is configured to wherein hold corresponding one of them and keeps the junction surface 796 of kick 776.
With reference to Figure 22,23 and 26, imitated filter 114e originally when being connected with shell 40e, roughing efficiency air filter 114e is installed in air compartment 110e top, and each keeps kick 776 to insert in the first 810 of relevant maintenance slit 790.Then, roughing efficiency air filter 114e is rotatable, keeps kick 776 to move in the second portion 812 that keeps slit 790 so that make.Imitated filter 114e originally when fully rotating, the junction surface 796 of kick 776 and relevant holding member 816 connections (promptly be received in the particular instance that provides and enter in the relevant holding member 816) are provided for each, so that stop roughing efficiency air filter 114e reverse rotation, therefore, in vacuum cleaner 10e operating period, roughing efficiency air filter 114e is not disengaged with shell 40e.
When imitating filter 114e rotation originally, keep inclined lower surface 794 and inclination composition surface 814 in the kick 776 to cooperate, so roughing efficiency air filter 114e is axially to shell 40e translation.By this way, sealing and bonding structure 774 is forced to and filter gasket 780 sealed engagement, thereby stops the point of liquid between upper end cap 766 and shell 40e to be introduced the fan 44e.Adopt under the situation of HEPA or ULPA filtering material at filter body 760, make the ability particular importance of roughing efficiency air filter 114e, between shell 40e and upper end cap 766 because filter gasket 780 also stops chip to permeate with respect to shell 40e sealing.
In the particular instance that provides, keep the second portion 812 of slit 790 and keep the inclined lower surface 794 of kick 776 to tilt as follows, promptly not only imitated originally and be convenient to roughing efficiency air filter 114e when filter 114e rotates with respect to shell 40e and move axially, and on the whole width that keeps kick 776, distributed the load that is applied by flexible filter packing ring 780.Yet those of ordinary skill in the art keeps the lower surface 794 of kick 776 not need to tilt as can be known, in alternate example, keeps kick 776 and keeps slit 790 to be shaped on shell 40e and upper end cap 766 respectively.
Again with reference to Figure 15, in addition with reference to Figure 27, hose 18e is the deflection vacuum hose preferably, and this vacuum hose can removably be connected with inlet 50e or outlet 52e.In the example that provides, hose 18e preferably includes link 850, and it has the cylindrical body 852 and a pair of lug 854 that is connected that tapering is arranged.There is the cylindrical body 852 of tapering to be configured to insert among the inlet 50e of expectation and the outlet 52e one and is frictionally engaged with it.Connect lug 854 and outwards stretch from the cylindrical body 852 that tapering is arranged, and be configured to be received in the lug slit 860 that enters correspondence, this lug slit 860 is in the wall of inlet 50e and outlet 52e.Shown in Figure 15 and 16 the bests, each lug slit 860 can be the L shaped or J-shaped with insertion portion 864 and retaining part 866, in the time of in link 850 axially inserts relevant inlet 50e or outlet 52e, this insertion portion 864 holds relevant one of them and connects lug 854, and this retaining part 866 stretches around the part of the inner rim of relevant inlet 50e or outlet 52e.The end 868 of retaining part 866 slight elongation on the direction that is in substantially parallel relationship to insertion portion 864, therefore, be arranged in wherein when connecting lug 854, and tend to make hose 18e when the masterpiece of unit head assembly 12e withdrawal is used in this hose 18e and goes up, connecting lug 854 can move forward slightly.Therefore, illustrated typical link 850 must further insert in described mouthful, and rotation is so that separate hose 18e and unit head assembly 12e.The end 850 that need further insert and be rotatably connected helps to prevent that hose 18e from separating in undesirable time with described mouthful.
With reference to Figure 14, the opposite end 880 of hose 18e can with any hose end connector 20e friction fit.This hose end connector 20e is known in the art, therefore, does not need here its structure and use are gone through.20e is reliable and convenient in order to ensure the hose end connector, and vacuum cleaner 10e preferably includes tool holder 890, this tool holder 890 can with shell 40e monolithic molding, perhaps separating shaped and for example be connected by the screw (not shown) with shell 40e.
In the example that provides, tool holder 890 comprises a pair of tubular recess 900, this recess 900 is configured to wherein accommodate instrument 20e ' and the mouth of pipe 20e that has the slit ", and the C shape collar 802, this collar be configured to be frictionally engaged (promptly around its girth clamping) with hose 18e.Therefore, the user can store hose 18e in the memory location, as shown in figure 28, the user inserts inlet 50e with the link 850 of hose 18e, around the cross side coiling hose 18e of vacuum cleaner 10e, like this hose 18e be trapped under battery case 550 and the lid 552 and with a part of clamping of hose 18e in the C shape collar 802.Like this during hose-loaded assembly 18e, the opposite end 880 of hose 18e remains on resting position, operate so that from an object, remove under the situation of chip at vacuum cleaner 10e, this can have additional use, the user of vacuum cleaner 10e can be with a grasped object, and the another hand helps to clean chip from object.Say that in another way the C shape collar 802 can be used as " pickpocket ", so that the opposite end 880 of grasping hose 18e as required.Preferably, the part of hose 18e between the C shape collar 802 and link 850 (being the main body of hose 18e) is in extended state (because the main body of hose 18e has tensile characteristic), therefore, when hose 18e was placed on the memory location, the main body of hose 18e was fixed on shell 40 and the filter tank 100e.
As an alternative, the link 850 of hose 18e can insert among the 52e one of inlet 50e and outlet, hose 18e reels around the cross side of vacuum cleaner 10e, therefore, hose 18e is trapped under battery case 550 and the lid 552, its opposite end 880 and inlet 50e and the another one that exports among the 52e are connected, and this is shown in Figure 29.Preferably, the part of hose 18e between opposite end 880 and link 850 (being the main body of hose 18e) is in extended state (because the main body of hose 18e has tensile characteristic), therefore when hose 18e was placed on the memory location, the main body of hose 18e was fixed on shell 40 and the filter tank 100e.
Get back to Figure 14, braces 22e can be connected with unit head assembly 12e, with allow to wet/user of dry vacuum cleaners 10e selectively on its shoulder the back of the body put on this equipment, therefore, its hand can be used for other task, comprise the transportation miscellaneous equipment, or when wet/dry vacuum cleaners 10e uses, operate hose 18e.In illustrated specific embodiment, braces 22e is connected with two collars 920, and this collar 920 extends from shell 40e in the zone of the most approaching inlet 50e and outlet 52e.
Referring to Figure 30, vacuum cleaner 10e also comprises optional coiling part 930 in addition.In the example that provides, coiling part 930 comprises two L shaped 960, and this 960 is connected with shell 40e.Frame 960 comprises the separated big flange 962 with shell 40e, so that limit a coiling recess 964 between it, electric wire 24e can be around these recess 964 packings that wind the line so that store.
In Figure 31, according to big body and function Reference numeral 1000 expressions of tool set of instruction structure of the present invention.Tool set 1000 comprises various power tools 1002 and above-mentioned practical vacuum cleaner 10e, and this practicality vacuum cleaner 10e comprises battery pack 28e.The structure of each power tool 1002 comprises container assemblies 64e, the structure of this container assemblies is consistent with the container assemblies 64e of practical vacuum cleaner 10e, preferably similar or identical, to allow battery pack 28e to be connected with given one of them power tool 1002 selectively, thereby electric energy transmitting, thereby be convenient to 1002 operations of given power tool.Advantageously, battery pack 28e can be connected selectively with any parts of tool set 1000, thereby gives selected power tool 1002 or practical vacuum cleaner 10e power supply.When specific power tool 1002 diagrams comprise drill bit driver 1002a, annular saw 1002b, reciprocating saw 1002c and flashlight 1002d, those of ordinary skill in the art according to open file as can be known, specific power tool can be any desired type, and can comprise for example hammer drill, fillet saw, screwdriver, pneumatic impact spanner, electric hammer, router, spiral saw, plate planer, metal processing cutter, grinding machine, sander, buffer, Automatic Levelling rotary laser, manual levelling rotary laser and heavy audio frequency apparatus.
Although in specification and accompanying drawing, described and illustrated the present invention with reference to preferred embodiment, for a person skilled in the art, under the prerequisite of the spirit and scope of the invention that do not exceed claims and limited, the present invention can do various change, and can carry out equivalence to its element and replace.In addition, under the prerequisite that does not exceed its essential scope, can carry out many modifications to be fit to particular case or material according to instruction of the present invention.Therefore, wish the invention is not restricted to the most best enforcement of the specific embodiment mode of the present invention of accompanying drawing diagram and specification description, but the present invention will comprise all embodiment that drop in aforementioned specification and the appended claims scope.
In short, the invention provides a kind of practical vacuum cleaner, comprising: filter tank; The unit head assembly, this unit head assembly is connected with filter tank, and has fan, is used for the motor of rotary power being provided and being used for distributing to motor the power supply of electric energy to fan, and this fan comprises the fan inlet; Shutoff device, this shutoff device connects with the unit head assembly, and is configured for when the liquid capacity in the filter tank surpasses predetermined volumes, prevents that fan is drawn into liquid in the fan inlet; Electric wire, this electric wire connects with power supply, and is configured to allow the user that power supply is connected with AC power; And battery, battery connects with power supply, and this battery is a dc source, is used for can not powering to power supply when AC power obtains alternating current when power supply.
Wherein, described battery can take out from described practical vacuum cleaner.
Also comprise battery charger, one in this battery charger and power supply and the electric wire is connected, and battery charger can be operated and be used for charging the battery when electric wire is connected with alternating-current power supply.
Wherein, power supply comprises be used for the circuit selected between alternating-current power supply and dc power supply.
Wherein, when power supply received alternating current, described circuit stoped battery to the power delivery electric energy.
Wherein, power supply comprises AC/DC converter and DC/DC converter.
Wherein, AC/DC converter and DC/DC converter include switch mode power, so that to motor transport pulse modulation electric energy.
Wherein, power supply comprises at least a switch mode power, so that to motor transport pulse modulation electric energy.
Wherein, the unit head assembly comprises shell, and described fan, motor and power supply are housed in the described shell, and described shell includes an inlet and an outlet, wherein the operation of practical vacuum cleaner is drawn in the filter tank by the stream that enters of described inlet with air, and by described outlet the discharge currents of air is discharged.
Wherein, cooling air suction inlet and cooling air tap form in described shell, cooling air tap is communicated with outlet, therefore, the air of outlet of flowing through is crossed (across) cooling air tap and is blown out, so that form the zone of lower pressure, thereby make air blow out cooling air tap, thus cooling motor.
Wherein, the cooling air suction inlet is near described inlet location.
Wherein, the cooling air suction inlet is around described inlet concentric locating.
Wherein, shutoff device comprises the object that is used to stop the fan inlet.
Wherein, described object is a float.
Also comprise second battery, this second battery and described battery are interchangeable, the voltage of second battery is different with the voltage of described battery, and second battery is a dc power supply, is used for exchanging and power supply is not powered to power supply when not receiving alternating current from alternating-current power supply at second battery and described battery.
According to a further aspect of the invention, provide a kind of tool set, comprising: battery pack; Power tool, this power tool comprises container assemblies, is used for removably holding battery pack; With practical vacuum cleaner, this practicality vacuum cleaner has filter tank, unit head assembly and shutoff device, the unit head assembly is connected with filter tank, and have fan, be used for the motor of rotary power being provided and being used for distributing the power supply of electric energy to motor to fan, fan comprises the fan inlet, shutoff device connects with the unit head assembly, and be configured for when the liquid capacity in the filter tank surpasses predetermined volumes, prevent that fan is drawn into liquid in the inlet of fan, described power supply comprises container assemblies, is used for removably holding battery pack; Wherein, battery pack can with power tool and practical vacuum cleaner in any be connected selectively so that provide power supply to it.
Also comprise the electric wire that connects with described power supply, electric wire is configured to allow the user selectively described power supply to be connected with alternating-current power supply.
Also comprise battery charger, one in this battery charger and described power supply and the electric wire is connected, and this battery charger can be operated and be used for giving batteries charging when described electric wire is connected with alternating-current power supply.
Wherein, described power supply comprises the circuit selected between alternating-current power supply and the electric energy that provided by battery pack is provided.
Wherein, when power supply received alternating current, described circuit stoped battery pack to the power delivery electric energy.
Wherein, power tool is selected from one group of power tool, and this group of power tool comprises flashlight, annular saw, reciprocating saw and drill bit driver.
Also comprise battery charger, this battery charger is used for recharging to battery pack.
Wherein, the unit head assembly comprises shell, and described fan, motor and power supply are housed in the described shell, and described shell includes an inlet and an outlet, wherein the operation of practical vacuum cleaner is drawn in the filter tank by the stream that enters of described inlet with air, and by described outlet the discharge currents of air is discharged.
Wherein, cooling air suction inlet and cooling air tap form in described shell, cooling air tap is communicated with outlet, therefore, the air of outlet of flowing through is crossed (across) cooling air tap and is blown out, so that form the zone of lower pressure, thereby make air blow out cooling air tap, thus cooling motor.
Wherein, the cooling air suction inlet is near described inlet location.
Wherein, the cooling air suction inlet is around described inlet concentric locating.
Also comprise second battery, this second battery and described battery are interchangeable, the voltage of second battery is different with the voltage of described battery, and second battery is a dc power supply, is used for exchanging and power supply is not powered to power supply when not receiving alternating current from alternating-current power supply at second battery and described battery.
A kind of practical vacuum cleaner comprises filter tank; The unit head assembly, this unit head assembly is connected with filter tank, and has fan, is used for the motor of rotary power being provided and being used for distributing to motor the power supply of electric energy to fan, and this fan comprises the fan inlet; Shutoff device, this shutoff device connects with the unit head assembly, and is configured for preventing that fan is drawn into liquid in the inlet of fan when the liquid capacity in the filter tank surpasses predetermined volumes; And battery, this battery connects with power supply, is used as the dc power supply of power supply power supply.
Wherein, battery removably is connected with the unit head assembly.
Also comprise the electric wire that connects with power supply, electric wire is configured to make power supply removably to be connected with second dc power supply, and described second dc power supply and battery are obviously different and separate.
Wherein, the power source voltage that is provided by battery is different with the dc voltage that is provided by second dc power supply.
Also comprise the electric wire that connects with power supply, electric wire is configured to make power supply removably to be connected with alternating-current power supply.
Wherein, the unit head assembly comprises shell, and described fan, motor and power supply are housed in the described shell, and described shell includes an inlet and an outlet, wherein the operation of practical vacuum cleaner is drawn in the filter tank by the stream that enters of described inlet with air, and by described outlet the discharge currents of air is discharged; Wherein, battery is put in the chamber, this chamber is limited by shell and lid, this lid can move between first state and second state with respect to shell, this first state allows battery to be put into described chamber and battery pack is taken out from described chamber, at this second state, prevention is put into described chamber with battery and battery is taken out from described chamber.
Also comprise and be configured to the deflection flexible pipe that is connected with described inlet.
Wherein, the deflection flexible pipe have first end, with the first end second opposed end and make first end and the interconnective main body of second end, the deflection flexible pipe can be positioned on a memory location, in this memory location, described first end is connected with inlet, described main body is reeled around a side of practical vacuum cleaner, so that stretch under described chamber.
Wherein, described second end of deflection flexible pipe is connected with outlet.
Wherein, when hose was positioned at the memory location, described main body remained on extended state.
Wherein, second end of deflection flexible pipe is configured to be connected with the collar (clip), and this collar engages with shell.
Wherein, when hose was positioned at the memory location, described main body remained on extended state.
Wherein, entrance and exit is positioned at the opposite side of shell, and the deflection flexible pipe can be positioned on the memory location, and at this, first end of deflection flexible pipe is connected with inlet, being connected with exporting with the first end second opposed end of deflection flexible pipe.
Wherein, cooling air suction inlet and cooling air tap form in the enclosure, cooling air tap is communicated with outlet, therefore, the air of outlet of flowing through is crossed (across) cooling air tap and is blown out, so that form the zone of lower pressure, thereby make air blow out cooling air tap, thus cooling motor.
Wherein, the cooling air suction inlet is near described inlet location.
Wherein, the cooling air suction inlet is around described inlet concentric locating.
Also comprise second battery, this second battery and described battery are interchangeable, and the voltage of second battery is different with the voltage of described battery, and second battery is a dc power supply, are used for powering to power supply when second battery and the exchange of described battery.
A kind of method that is used for the tool set of actuating battery power supply, this tool set comprises practical vacuum cleaner and power tool, the step of this method comprises: pull down battery pack from power tool; With battery pack is connected with practical vacuum cleaner, thereby provide wireless power supply to practical vacuum cleaner.
Also comprise: the electric wire that connects with practical vacuum cleaner is provided, and described electric wire is configured to make practical vacuum cleaner removably to be connected with alternating-current power supply; Operate practical vacuum cleaner with utilizing by an electric energy that provides in battery pack and the alternating-current power supply.
Wherein, the step of operating practical vacuum cleaner comprises: if electric wire is connected with alternating-current power supply, then the electric energy that provides with alternating-current power supply is operated practical vacuum cleaner; With otherwise operate practical vacuum cleaner with the electric energy that battery pack provides.
According to another aspect of the invention, a kind of practical vacuum cleaner is provided, comprising: filter tank; The unit head assembly, this unit head assembly removably is connected with filter tank, and comprise fan, the motor that is used for providing rotary power and the shell that is connected with motor with fan to fan, this shell comprises the fan inlet; Shutoff device, this shutoff device connects with the unit head assembly, and is configured for preventing that fan is drawn into liquid in the inlet of fan when the liquid capacity in the filter tank surpasses predetermined volumes; Filter, this filter is connected with shell, and constructs the air stream that flows into the fan inlet to filter, and described filter comprises the filter flange; And filter gasket, this filter gasket is fixedlyed connected with shell, and near filter flange location; Wherein, one in filter flange and the fan inlet comprises the maintenance kick, in filter flange and the fan inlet another comprises the maintenance slit that is used to hold described maintenance kick, and wherein, described maintenance kick and maintenance slit are configured to when being bonded with each other, with the filter flange vertically to the shell drawing, so that make described filter flange and filter gasket sealed engagement.
Wherein, keep described another the part of circumference of slit in filter flange and the fan inlet to extend.
Wherein, keeping slit is spirality.
Claims (3)
1, a kind of practical vacuum cleaner comprises:
Filter tank;
The unit head assembly, this unit head assembly removably is connected with filter tank, and comprise fan, the motor that is used for providing rotary power and the shell that is connected with motor with fan to fan, this shell comprises the fan inlet;
Shutoff device, this shutoff device connects with the unit head assembly, and is configured for preventing that fan is drawn into liquid in the inlet of fan when the liquid capacity in the filter tank surpasses predetermined volumes;
Filter, this filter is connected with shell, and constructs the air stream that flows into the fan inlet to filter, and described filter comprises the filter flange; With
Filter gasket, this filter gasket is fixedlyed connected with shell, and near filter flange location;
Wherein, one in filter flange and the fan inlet comprises the maintenance kick, in filter flange and the fan inlet another comprises the maintenance slit that is used to hold described maintenance kick, and wherein, described maintenance kick and maintenance slit are configured to described maintenance kick and keep slit to have the inclination composition surface, the inclination composition surface of described maintenance kick comprises the junction surface, the inclination composition surface of described maintenance slit comprises notch, described junction surface engages with described notch, so that when described maintenance kick is bonded with each other with the maintenance slit, with the filter flange vertically to the shell drawing, so that make described filter flange and filter gasket sealed engagement.
2, practical vacuum cleaner as claimed in claim 1 wherein, keeps described another the part of circumference of slit in filter flange and the fan inlet to extend.
3, practical vacuum cleaner as claimed in claim 2, wherein, the maintenance slit is a spirality.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42537102P | 2002-11-12 | 2002-11-12 | |
| US60/425,371 | 2002-11-12 | ||
| US10/640,267 | 2003-08-13 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101142872A Division CN100479733C (en) | 2002-11-12 | 2003-11-12 | Improved convenient AC/DC portable wet/dry vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1935079A CN1935079A (en) | 2007-03-28 |
| CN100577078C true CN100577078C (en) | 2010-01-06 |
Family
ID=37952958
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610114812 Pending CN1935078A (en) | 2002-11-12 | 2003-11-12 | Ac/dc hand portable wet/dry vacuum having improved portability and convenience |
| CN200610114811A Expired - Fee Related CN100577078C (en) | 2002-11-12 | 2003-11-12 | AC/DC hand portable wet/dry vacuum cleaner having improved portability and convenience |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610114812 Pending CN1935078A (en) | 2002-11-12 | 2003-11-12 | Ac/dc hand portable wet/dry vacuum having improved portability and convenience |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1935078A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011189484A (en) * | 2010-03-16 | 2011-09-29 | Makita Corp | Dust collector and power tool with dust collector |
| US11864719B2 (en) * | 2018-09-07 | 2024-01-09 | Sharkninja Operating Llc | Battery and suction motor assembly for a surface treatment apparatus and a surface treatment apparatus having the same |
| CN108903784B (en) * | 2018-09-30 | 2024-02-02 | 江苏美的清洁电器股份有限公司 | Dry and wet two-purpose dust collector |
-
2003
- 2003-11-12 CN CN 200610114812 patent/CN1935078A/en active Pending
- 2003-11-12 CN CN200610114811A patent/CN100577078C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1935079A (en) | 2007-03-28 |
| CN1935078A (en) | 2007-03-28 |
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