CN101606835A - Electric dust collector - Google Patents

Electric dust collector Download PDF

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Publication number
CN101606835A
CN101606835A CNA2009101491279A CN200910149127A CN101606835A CN 101606835 A CN101606835 A CN 101606835A CN A2009101491279 A CNA2009101491279 A CN A2009101491279A CN 200910149127 A CN200910149127 A CN 200910149127A CN 101606835 A CN101606835 A CN 101606835A
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suction nozzle
ground
mentioned
pattern
dust collector
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Inventor
石桥崇文
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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Abstract

The invention provides a kind of electric dust collector that can alleviate the burden of user when pattern is changed, comprising: electric fan (2); The on-off switch (18a) of the suction nozzle and the situation that contacts on cleaning ground is gone up, is used to detect on the ground that is installed in the dust on the cleaning face of suction with suction nozzle (9); Be provided with a plurality of powering modes of different capacity and control control part (14) to the power supply of electric fan; When contacting with the predefined combination of the corresponding a plurality of patterns of the combination of the signal that does not contact with cleaning face with suction nozzle, determine the micro computer (20) of each associative mode on the detected ground of on-off switch; The combination of the pattern of wanting according to the user, by ground is contacted or built on stilts with suction nozzle, thereby micro computer is judged the pattern of determining that the user wants to its combination, utilizes control part to provide the pairing power of this pattern that electric fan is carried out switching controls.

Description

Electric dust collector
Technical field
The present invention relates to a kind of home-use or professional electric dust collector of using, more particularly, relate to load control wherein.
Background technology
Following elder generation describes existing general electric dust collector by Figure 10 and Figure 11.Figure 10 is the formation schematic diagram of existing electric dust collector, and Figure 11 is the circuit diagram of this electric dust collector.
In Figure 10, the 1st, the main body of dust catcher, the 2nd, be built in the electric fan that produces suction in the dust collector host body 1, the 3rd, flexible pipe, which is provided with the operating portion 4 of the different capacity (mode of operation) that is used for switching electric fan 2, the 5th, extension pipe, the 6th, be contained in front portion in the dust collector host body 1, be used for placing the dust storage chamber of accumulating dust, flexible pipe 3 is connected by the air entry 7 that is arranged on the dust collector host body 1 with dust storage chamber 6.Flexible pipe 3 forms air-breathing loop separately or with extension pipe 5 together.Operating portion 4 is arranged near the handle portion 8 on the flexible pipe 3, and the user is being in one's hands handle portion 8 when cleaning like this, can just can operate operating portion 4 under the situation of the gesture that does not change grasps handle portion 8, carries out the conversion of mode of operation.In addition, extension pipe 5 can carry out telescopic adjustment, regulates distance from handle portion 8 to ground suction nozzle 9 by the length that changes extension pipe 5, thereby makes the user of different heights and physique can carry out the dust suction operation of the most comfortable.
The 9th, contact, be used for picking up the ground suction nozzle of ground dust etc. with ground, its inside is provided with the motor 11 that is used to have swept the rotating brush 10 of ground dust and is used to drive rotating brush 10.
In Figure 11, the 14th, control part wherein is provided with micro computer 15.Operating portion 4 is by switch SW 1, switch SW 2, switch SW 3 these 3 switches and resistance (r1~r4) constitute, by pressing each different switches, the power vd Dsw of operating portion 4 can be operated that switch is operated and dividing potential drop is carried out in the different resistance combination that changes, and the voltage that obtains is imported into micro computer 15 as Vout.Generally, such analog signal is imported in AD (analog to digital) functional module in the micro computer 15, is converted into digital signal value in the inside of micro computer 15; Such digital signal value and default and switch SW 1, switch SW 2, switch SW 3 value corresponding separately compare, and judge which switch is pressed, thereby determine the corresponding pattern of each switch.
According to voltage Vout from operating portion 4 inputs, micro computer 15 opening/closings are as amphicheirality's thyristor 16 of the 1st of the drive division of electric fan 2 with as amphicheirality's thyristor 17 of the 2nd of the driver part of motor 11, perhaps carry out phase controlling, and then control is to the power supply of electric fan 2 and motor 11 by the mode of control triggering phase place.
On by flexible pipe 3 or the air intake passage that forms together by flexible pipe 3 and extension pipe 5, the a pair of power line 13 that is provided with a pair of holding wire 12 and powers to motor by dust collector host body 1, above-mentioned holding wire 12 is not only powered to operating portion 4 from dust collector host body 1, also transmits the corresponding signal of setting with operating portion 4 of pattern to dust removal machine main body 1 one sides simultaneously.Be installed in the power supply that pattern control that the micro computer 15 in the dust collector host body 1 sets according to operating portion 4 is carried out electric fan 2 and motor 11.The user is provided with in the micro computer 15 to electric fan 2 and carries different output voltages and a plurality of control models of power output, so can operate electric dust collector by selecting required mode with motor 11.
In addition, in the power line 13 of ground, be provided with the closed circuit engaging means 18 of connecting/closing to the path of motor 11 power supplies with the inside of suction nozzle 9.Only at closed circuit device 18 during with closing of circuit (connection), could be to motor 1 power supply.
Closed circuit device 18 is arranged on the contact-making surface of ground with suction nozzle 9 and ground, and ability is with closing of circuit when only contact with ground with suction nozzle 9 on ground; And when built on stilts disconnecting circuit, then cut off power supply forcibly to motor 1.Like this, when ground with suction nozzle be suspended in the air, when the people might run into the rotating brush 10 that is exposed to the outside, the running of rotating brush 10 is stopped forcibly, forms a kind ofly can guarantee safe structure.
In having the electric dust collector of above-mentioned formation, the user carries out the setting of set pattern by operating operation portion 4, and micro computer 15 provides and the corresponding electric power of setting pattern to electric fan 2 and motor 11; When from stopping when the stop mode of electric fan 2 and motor 11 power supplies changes the operator scheme of powering over to, promptly passing air intake passage with the dust that suction nozzle 9 sucks, be stored at last in the dust storage chamber 6 by ground.
Usually, the user when having a mind to pick up ground dust, the ground that ground will be cleaned with suction nozzle 9 contact, by ground with the suction inlet (not shown) of suction nozzle 9 near ground, remove ground dust; But when the user was mobile in order to change the cleaning position, ground will have been carried with suction nozzle 9, is vacant state.Under this state, because cleaning face has been left with suction nozzle 9 in ground, even electric fan 2 is worked, produced dust-absorbing airflow, ground dust can not be eliminated yet, thereby can produce the problem of wasting electric energy meaninglessly.
In order to address this problem, the someone has proposed the scheme that reduces the supply voltage of electric fan 2 when aerial (example wherein can with reference to Japan Patent 3,045,834) is being mentioned with suction nozzle in ground.
In addition, also the someone proposed earlier whether kiss the earth detects with suction nozzle 9 to ground, controlled scheme to the power supply of electric fan 2 (example wherein can with reference to Japanese patent gazette 2001-245834) according to its state.
But, in the formation of above-mentioned existing electric dust collector, it is prerequisite that the position of operating portion 4 holds with the user that handle portion 8 cleans, for holding the user that handle portion 8 place is in addition cleaned, if operating portion 4 is operated, will have to change the position of holding.In addition, under the occasion that handle portion 8 cleans even if be in one's hands, as will in dust suction, operating to operating portion 4, just must make at least one finger in the finger of holding handle portion 8 leave handle portion 8, burden just is concentrated on remaining finger like this, the problem that sense of fatigue increases will occur.
Summary of the invention
The present invention is intended to solve the above-mentioned problem, even a kind of handle portion position in addition of holding is provided to be cleaned, when changing pattern, also need not to change the grasping gesture busyly, can alleviate the user's that need carry out the pattern switching burden, good electric dust collector easy to use.
For solving the above-mentioned problems in the prior art, electric dust collector of the present invention comprises: inside is provided with the dust collector host body of the electric fan that can produce dust-absorbing airflow; The suction nozzle of the dust on the cleaning face of suction; The dust-absorbing airflow that is sucked by above-mentioned suction nozzle is sent to the air intake passage of described dust collector host body; Be installed in the above-mentioned suction nozzle, be used to detect the contact detecting of the situation that contacts of above-mentioned suction nozzle and swept surface; Be provided with the different a plurality of patterns of power supply electric power, and control to the control part of the power supply of above-mentioned electric fan; With the pattern determination section, the signal of signal when suction nozzle that send in above-mentioned contact detecting, above-mentioned contacts with cleaning face when not contacting be combined as with above-mentioned a plurality of patterns in the corresponding predetermined combinations of a pattern time, above-mentioned pattern portion then is defined as mode of operation and the pairing pattern of combinations thereof.Like this, wish the combination of the pattern correspondence used according to the user, the contact of adding suction nozzle with separate, move corresponding the contact and signal noncontact the time from contact detecting output and its, the pattern determination section is judged this combination, determine the pattern that the user wants, control part carries out the supply of electric power according to the pattern that it is determined again, dependence is to the switching of the running of electric fan, the user can change the position of handle just can carry out translative mode like a cork, also can alleviate the burden of hand.
The technique effect that the present invention produces is as follows.Electric dust collector among the present invention according to the contact on suction nozzle and ground with separate, the different powering modes of electric fan are switched.Like this, the user need not change grip locations for switch mode, and always can hold handle by enough all fingers, can alleviate the burden of hand yet, improves and uses the free degree.
The specific embodiment of the present invention is summarized as follows.The electric dust collector of the present invention's the 1st scheme comprises: inside is provided with the dust collector host body of the electric fan that can produce dust-absorbing airflow; The suction nozzle of the dust on the cleaning face of suction; The dust-absorbing airflow that is sucked by above-mentioned suction nozzle is sent to the air intake passage of described dust collector host body; Be installed in the above-mentioned suction nozzle, be used to detect the contact detecting of the situation that contacts of above-mentioned suction nozzle and swept surface; Be provided with the different a plurality of patterns of power supply electric power, and control to the control part of the power supply of above-mentioned electric fan; With the pattern determination section, the signal of signal when suction nozzle that send in above-mentioned contact detecting, above-mentioned contacts with cleaning face when not contacting be combined as with above-mentioned a plurality of patterns in the corresponding predetermined combinations of a pattern time, above-mentioned pattern portion then is defined as mode of operation and the pairing pattern of combinations thereof.The user wishes the corresponding action combination of the pattern correspondence used, by suction nozzle contact with separate ground, move corresponding the contact and non-contact signal from contact detecting output and its, the pattern determination section is judged this combination, determine the pattern that the user wants, control part is powered according to the pattern that it is determined again, relies on the switching to the running of electric fan, the user can change the position of handle just can easily carry out translative mode, also can alleviate the burden of hand.
The 2nd scheme is, pattern determination section described in the 1st scheme determines the conversion of a plurality of patterns according to pre-set order, being combined as when preestablishing combination of signal when from contact detecting signal input, when suction nozzle contacts with swept surface and noncontact then carried out pattern and switched.Like this, the suction nozzle of user operation with swept surface contact and non-contacting operative combination seldom and by simple combination just can realize, so can carry out the operation that pattern is changed like a cork, also can improve ease of use.
The 3rd scheme is, the electric dust collector of the 1st scheme or the 2nd scheme also comprises the timing portion that is used to carry out timing, and the combination of pattern determination section signal according to from signal contact detecting input, when suction nozzle contacts with swept surface and noncontact time the in the stipulated time that above-mentioned timer is counted is judged.The pattern determination section is according to above-mentioned timing portion official hour, only according to the combination of contact and non-contacting signal at the appointed time, as judging the signal that whether will carry out the pattern handover operation, carry out the switching of pattern, therefore the judgement precision of energy raising pattern switching.
The 4th scheme is, suction nozzle described in the 1st~3 each scheme is for sucking the ground suction nozzle of ground dust, described ground comprises being provided with to be mounted with above-mentioned suction inlet towards the head sucting body of the peristome of above-mentioned ground side and an end with suction nozzle and is communicated with the connector portions that the other end and air intake passage are connected together, above-mentioned head sucting body and connector portions form the structure that can freely rotate, and described contact detecting is arranged on the rear of above-mentioned suction inlet.Like this, if the user mentions above-mentioned ground suction nozzle, the preceding bottom of above-mentioned suction inlet becomes fulcrum with kiss the earth, the back of above-mentioned suction inlet becomes application point and lifts earlier, described contact detecting just can not detect and contact with ground, only just can detect above-mentioned ground and use contacting and non-contacting state of suction nozzle and ground, can carry out the conversion of pattern at an easy rate with less strength.
The 5th scheme is, suction nozzle described in the 1st~3 each scheme is the ground suction nozzle that sucks ground dust, described ground comprises being provided with to be mounted with above-mentioned suction inlet towards the head sucting body of the peristome of above-mentioned ground side and an end with suction nozzle and is communicated with the connector portions that the other end and air intake passage are connected together, above-mentioned head sucting body and connector portions form the structure that can freely rotate, and described contact detecting is arranged on the place ahead of above-mentioned suction inlet.Like this, when lift because of user's cleaning action with suction nozzle on above-mentioned ground, the preceding bottom of described suction inlet becomes fulcrum with kiss the earth, the back of above-mentioned suction inlet becomes application point, because lift at last in the place ahead, move to cause but be not user's original idea because of user's cleaning, be not easy to produce the signal of contactless state, therefore the accuracy of judgement degree of energy raising pattern switching.
The 6th scheme is that the suction nozzle described in the 1st~5 each scheme is the ground suction nozzle that floor suction is used, and comprising: the rotating brush that is used to clean above-mentioned ground dust; Drive the motor of above-mentioned rotating brush; Be electrically connected with the dust collector host body, to the electric wire of above-mentioned motor power supply; And be located on the said wires, when the on-off switch of above-mentioned ground closure during with the suction nozzle kiss the earth, described on-off switch has constituted described contact detecting.Like this, need not to install respectively contact detecting and on-off switch, can simplify housing construction.
Description of drawings
Fig. 1 is the circuit diagram of the electric dust collector of embodiments of the invention 1,
Fig. 2 is the side cross-sectional, view of the ground of this electric dust collector with suction nozzle,
Fig. 3 is the flow chart that the pattern conversion of this electric dust collector is judged,
Fig. 4 is the flow chart that the strong mode of this electric dust collector is judged,
Fig. 5 is the flow chart of the weak mode decision of this electric dust collector,
Fig. 6 is the flow chart that the stop mode of this electric dust collector is judged,
Fig. 7 is the flow chart that the pattern conversion of the electric dust collector of embodiments of the invention 2 is judged,
Fig. 8 is the flow chart of the strong/weak mode decision of this electric dust collector,
Fig. 9 is that the ground of the electric dust collector of the embodiment of the invention 3 is illustrated with the operation of suction nozzle,
Figure 10 is the summary pie graph of existing electric dust collector,
Figure 11 is the circuit diagram of existing electric dust collector.
In the above-mentioned accompanying drawing, 2 is electric fan, and 9 are ground suction nozzle (suction nozzle), 11 is motor, 14 is control part, and 18 is closure, and 18a is an on-off switch (closure, contact detecting), 20 micro computers (pattern determination section), 21 is head sucting body, 23 is connector portions, 24 is roller (closure, contact detecting).
The specific embodiment
With reference to the accompanying drawings embodiments of the invention are elaborated.It is pointed out that simultaneously such embodiment does not have the effect that limits the scope of the invention.
(embodiment 1)
Fig. 1 represents the circuit structure of the electric dust collector of the 1st embodiment of the present invention.For simplicity's sake, for above-mentioned existing electric dust collector in same component parts, only put on identical symbol here, and omit specifying it.
In Fig. 1,9 is the suction nozzle that is used for from the dust suction of cleaning face, and the example here is the ground suction nozzle.Ground is installed on the extension pipe 5 in the mode that can freely install and remove with suction nozzle 9.Ground is equipped with the motor 11 of rotating brush 10 and driving rotating brush 10 with the inside of suction nozzle 9.Motor 11 relies on the power line 13 that is located on the air intake passage to power.
Electric fan 2 that produces dust-absorbing airflow and the dust storage chamber 6 of collecting dust are housed in the dust collector host body 1.When electric fan 2 work, produce when inhaling grey air-flow, clean ground dust by ground with suction nozzle 9 suctions, pass again in the dust storage chamber 6 that extension pipe 5 and flexible pipe 3 be collected into dust collector host body 1.The air that has dust is filtered in dust storage chamber, and dust is stacked in the dust storage chamber 6, and air after filtering then discharges from dust collector host body 1.In addition, on the head portion of flexible pipe 3, be equipped with and be convenient to the handle 8 that the user handles dust catcher.
Control part 14 is made of micro computer 20, is provided with " pattern " and " stop mode ", and control is to the power supply of electric fan 2.
Be provided with on-off switch 18a on the power line 13 in ground suction nozzle 9, when ground suction nozzle 9 contacted with ground, a side of power line 13 formed closed circuit structure.Two resistance r1 and r2 in the parallel connection of the both sides of on-off switch 18a, resistance r1 is positioned at dust collector host body 1 one sides, and resistance r2 is positioned at motor 11 1 sides.
The power pins Vdd of micro computer 20 is connected a side of power line 13.Being installed in the end of the resistance r0 in the dust collector host body 1 and resistance r1 and r2 is connected in series, the other end is connected with the grounding pin GND of micro computer 20, voltage between the Vdd-GND obtains voltage V1 after the all-in resistance of resistance r1 and r2 and resistance r0 dividing potential drop, voltage V1 is imported in the micro computer 20, and V1 comes deterministic model according to this voltage.That is to say that the pattern determination section of deterministic model and the timing portion that when determinating mode determines the regular hour is carried out timing also all are made of micro computer.
Micro computer 20 is " pattern " according to voltage V1 determinating mode as the pattern of judging, then the 1st amphicheirality's semiconductor switch 16 is carried out phase controlling, default supply voltage is provided for electric fan 2, produces dust-absorbing airflow; Simultaneously, control the 2nd amphicheirality's semiconductor switch 17, power, make rotating brush 10 rotating speed rotation in accordance with regulations to motor 11.
Pattern as judgement is " stop mode ", then stops to electric fan 2 power supplies.In addition, the original state after the electric dust collector energising is " stop mode ".
The phase place of micro computer 20 by making the triggering signal of giving the 1st amphicheirality's semiconductor switch 16 changes with respect to the zero crossing of power supply, and the power supply of electric fan 2 is controlled; Equally, change, the rotating speed of motor 11 is controlled by the triggering signal phase place that makes the 2nd amphicheirality's semiconductor switch 17.
Fig. 2 represents the schematic diagram of ground with the longitudinal section of suction nozzle 9.
Among Fig. 2, the 21st, ground is provided with peristome 22 and rotating brush 10 towards the ground face with the head sucting body of suction nozzle 9.The 23rd, connector portions, an end is connected on the extension pipe 5 removably, the other end and head sucting body 21 is communicated with, but and relative to head sucting body 21 easy on and off rotate.
In addition, 24 are mounted in the movable up and down roller of head sucting body 21 rear lowers, and not shown elastic device is applied with downward power to it.The interlock that moves up and down of the action of on-off switch 18a and roller 24: move upward if roller 24 heads on the elastic force of elastic device, then on-off switch 18a closure; If move downward, then on-off switch 18a disconnects.When electric fan 2 produces dust-absorbing airflow, ground dust (A) will be inhaled in the extension pipe 5 according to the path that the arrow among the figure is represented.
As mentioned above, in the present embodiment, on-off switch 18a and roller 24 have constituted closed circuit device 18.In addition, closed circuit device 18, resistance r0, resistance r1 and r2 have constituted contact detecting.
Operational circumstances and effect to the electric dust collector in the present embodiment with above-mentioned formation describes below.
When the user will carry out dust suction to ground, head sucting body 21 contacted with ground usually, and roller 24 is pushed to ground.Here, littler with the weight of suction nozzle 9 because the power that elastic device way roller 24 applies is set at than ground, so as long as the ground suction nozzle is put on the ground, roller 24 will move upward with respect to head sucting body 21.At this moment, on-off switch 18a closure, formation can be to the state of motor 11 power supplies.
At this moment, on ground be with the all-in resistance rn1 of resistance r1 in the suction nozzle 9 and r2
Rn1=r1r2/ (r1+r2) (formula 1)
The power pins Vdd of micro computer 20 is connected a side of power line 13, and this root line is a bridging line.20 pairs of motor of micro computer 11 carry out phase controlling, in micro computer 20 makes the time of the 2nd amphicheirality's semiconductor switch 17 closures, are benchmark with the GND pin of micro computer 20, and the voltage on the V1 is:
Von=(r0/ (r0+rn1+2 * r)) * Vdd (formula 2)
The r here is the small resistance that the electric wire in flexible pipe 3, the extension pipe 5 produces, and it compares very little with r0, r1, r2, can ignore, therefore
Von=(r0/ (r0+rn1)) * Vdd (formula 3)
Von=(r0/ (r0+r1r2/ (r1+r2))) * Vdd (formula 4)
In case the user carries ground suction nozzle 9 from ground, the roller 24 just relative head sucting bodies 21 that have been applied in elastic force move down, and at this moment, on-off switch 18a disconnects, even micro computer 20 makes 17 conductings of the 2nd amphicheirality's semiconductor switch, the power supply of motor 11 also can be forced to cut off.
When holding handle portion 8 or extension pipe 5, the user lifts ground with suction nozzle 9, when desiring away from ground, the connector portions 23 that is connected on the extension pipe 5 will be lifted, at this moment, because the cause of the weight of head sucting body 21, head sucting body 21 connects head 23 to the front lower place rotation, lifts earlier with the connector portions 23 that the rear portion of head sucting body 21 links to each other.At this moment, the preceding bottom of head sucting body 21 also contacts with ground.In this state, with low weight strength with regard to liftable handle portion of holding 8 or extension pipe 5.
The position of the switching of on-off switch 18a is adjusted apart from the distance on ground according to roller 24 up and down amplitude or head sucting bodies 21.Which therefore, in position probing contact noncontact can set according to the difference in height on ground suction nozzle 9 relative ground.In the present embodiment, even if the preceding bottom kiss the earth of head sucting body 21 as long as rear lower is in the state of built on stilts, just is made as and detects noncontact.
At this moment, ground with resistance r1 in the suction nozzle 9 and the equivalent resistance rn2 of r2 is
Rn2=r1 (formula 5)
Voff=(r0/ (r0+rn1)) * Vdd (formula 6)
Micro computer 20 can be that to judge ground be to be in the state of kiss the earth, still to be in the state that is lifted with suction nozzle 9 for Von or Voff according to the voltage of input in V1.In addition, because ground is to be connected on the extension pipe 5 in detachable mode with suction nozzle 9, so when ground is removed with suction nozzle 9, the voltage of V1 will become the GND state, therefore can determine is to install or the state of dismounting.Like this, the influence that the level of V1 changed when mode decision was not subjected to installation or removal, but only to ground with the ground connection of suction nozzle 9 with lift state and carry out, the precision of judgement can be improved.
In micro computer 20, there is basis as shown in table 1 in advance and gives the process that is combined into row mode conversion judgement of powering mode and the Von and the Voff of electric fan 2.
(continued on next page)
<table 1 〉
Figure A20091014912700131
In table 1, strong mode is that the power that sensing electric fan 2 is carried is 1000w, strengthens the pattern of dust-absorbing airflow.Weak pattern is meant and relies on the phase controlling of the 1st amphicheirality's semiconductor switch 16 to make the power that flows to electric fan 2 drop to 300w, weakens the pattern of dust-absorbing airflow.Stop mode is meant the pattern of not powering to electric fan 2.
In table 1, the method of judging the conversion of each pattern is, the ground that obtains according to contact detecting is contact or the information of kiss the earth (that is combination of Von and Voff) not with suction nozzle 9, and the length (time) of number of times by changing the Von that alternately takes place and Voff level and the signal of Von or Voff is come recognition mode.As shown in table 1, Von that hockets as definition and the number of times of Voff are phase place, and the pattern conversion decision process of supposing strong mode is made of 4 phase places of phase place 1~phase place 4, and the process of stop mode is made of 3 phase places.
By importing time factor in the process of judging in the pattern conversion, can reduce when pattern conversion ground number of operations with suction nozzle 9 contacts and built on stilts, not only can improve the convenience when using, also can reduce the impact that is subjected to ground when on rugged place and carpet, cleaning cause ground to contact with suction nozzle 9 and built on stilts to change to be not that the situation of the pattern wanted of the person of being to use takes place.
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 represent the flow chart that the pattern conversion is judged.Fig. 3 represents the overall process of pattern conversion, and Fig. 4, Fig. 5, Fig. 6 then represent the process that the conversion of conversion, the stop mode conversion of the conversion of strong mode, weak pattern is judged separately.
At first, with Fig. 3 overall process is described.
In Fig. 3, step 1 for to judge whether the level of V1 is Von that is to say, confirms that ground is with suction nozzle 9 kiss the earth whether.With suction nozzle 9 kiss the earths, then the voltage of V1 is Von as ground, and micro computer 20 carries out timing accumulative total in step 2, and then gets back to step 1 as timing portion, V1=Von continue during in constantly repeat the time that this action calculates V1=Von.If in step 1, V1 ≠ Von just enters step 3.Step 3 is for to judge whether V1 equals Voff, that is confirms that ground is with suction nozzle 9 built on stilts whether.
It is the precondition of original state as the determinating mode conversion with suction nozzle 9 kiss the earths that micro computer 20 is set ground.After kiss the earth continues more than 1 second, just can carry out the pattern conversion and judge.This is to consider the conscious translative mode of wanting of user, only make its kiss the earth just can carry out the pattern conversion more than 1 second, like this, when operate ground is mobile on the ground with suction nozzle 9, because some ground high low heads, the liftoff and kiss the earth of the unconscious short time that causes of user just can not carry out the judgement of pattern conversion.
Therefore,, become the situation of built on stilts exactly by the state of kiss the earth, just enter step 4 if step 3 detects V1=Voff.In step 4, if the time of V1=Voff is discontented with 1 second,, the user do not cause, after step 16 has been removed timing, more again from step 1 beginning because having a mind to translative mode with regard to the variation of judging V1 voltage.In addition, if when step 3 is judged V1 ≠ Voff, because V1 ≠ Von, therefore clearly this is not the signal that carries out the pattern conversion, so similarly enter step 16.This is a situation about considering when suction nozzle 9 is used on ground from extension pipe 5 loading and unloading.
After entering into step 4, if timing surpassed more than 1 second, then judgment model conversion judgement is ready, and in order to carry out the judgement of phase place 2, the temporary transient zero clearing timing of step 5 enters step 6.
In step 6, confirm V1=Voff, that is confirm whether ground is in the built on stilts state with suction nozzle 9 that operate ground suction nozzle 9 is the built on stilts state just if the user is meant to carry out the switching of pattern.In step 6, if V1=Voff just enters step 7 and carries out timing accumulative total, and then gets back to step 6, during V1=Voff, repeat this action repeatedly, timer can calculate the time of V1=Voff.
As V1 ≠ Voff, just enter step 8.Step 8 confirms whether V1 is Von.At this moment, if V1 ≠ Von and V1 ≠ Voff because voltage is different with the mode decision voltage of signals, thus termination pattern judge, enter step 16 zero clearing timing after, return step 1, carry out whole judgements again.In step 8,, that is to say that the voltage of V1 becomes Von by Voff if V1=Von just enters step 9. Step 9,10,11 determine the time length of timing.This moment count time be the time of V1=Voff.Whether the time that step 9 affirmation is in Voff is 0.3 second.
0.3 second be time of initial Voff of the pattern conversion decision process of strong mode as shown in table 1.If being in the time of Voff is 0.3 second, judge that then the person of being to use wants to be converted to the conversion operations of strong mode, the strong mode that enters step 12 is judged.
Then entered step 10 if not 0.3 second, same, if 0.7 second, the weak pattern that enters step 13 is judged with comparing in 0.7 second.Then entered step 11 if not 0.7 second, same, to compare with 1 second if 1 second, the stop mode that enters step 14 is judged.
In step 11, during if not 1 second,, therefore be judged as unconscious contact of user or built on stilts because do not meet the decision condition of any one pattern, enter step 16.
Carry out timing as mentioned above, judge according to level in given time to signal, can the raising pattern accuracy rate judged of conversion.
The judgement that begins the strong mode to step 14, weak pattern and stop mode from step 12 will be narrated in the back.In step 15, judge the result of each deterministic process, as determined the conversion of pattern that with regard to end process, if NG is judged in conversion, just enter step 16, the zero clearing timing restarts from step 1.
In the present embodiment, the original state of all patterns (phase place 1) is all set V1=Von, and when the signal level of phase place 2 became Voff, corresponding different mode time length was carried out different mode decision process, so simple processing procedure as shown in Figure 3 just can realize.
In addition, the represented process of V1 signal can produce error because of user's method of operating etc., and as 0.3 second, 0.7 second, fixing like this decision content can bring some inconvenience to the judgement of pattern conversion in 1 second, therefore all set in practice and allowed error.In this case, look like 0.3 second ± 0.1 second, 0.7 second ± 0.1 second, but unduplicated setting of each time period of error was arranged like this in 1 second ± 0.1 second.
Then, explain the judgement of strong mode with Fig. 4.In the strong mode, just become from phase place 3 and begin judgement.The temporary transient zero clearing timing of step 1.Step 2 confirms whether V1 equals Von, if V1=Von enters step 3 and carries out timing accumulative total, returns step 2.If V1 ≠ Von enters step 4, confirm whether V1 is Voff.If V1=Voff enters step 5, ground becomes the state of built on stilts with suction nozzle 9 by the kiss the earth state, at this moment count time be the time of the Von of phase place 3.In step 4, if V1 ≠ Voff and V1 ≠ Von owing to be not the signal level of the conversion of determinating mode, so enter step 12, do not carry out the conversion of pattern, be set at the NG information that the pattern conversion is judged, finish the processing that strong mode is judged.
In step 5, determine whether timing is 0.7 second.If 0.7 second, judge that the level of V1 when phase place 3 is consistent with pattern conversion decision process, enter step 6.If not 0.7 second, then judge the kiss the earth signal that is not to use the conscious translative mode of person and sends, enter step 12.
Step 6 is temporary transient zero clearing meters for the judgement of carrying out phase place 4, enters step 7 then.
In step 7, confirm whether V1 is Voff, if V1=Voff enters step 8 and carries out timing accumulative total and then get back to step 7.If V1 ≠ Voff enters step 9, confirm whether V1 is Von.If V1=Voff enters step 10, ground is the state of kiss the earth with suction nozzle 9 by the state variation of built on stilts, at this moment count to such an extent that the time is the time of the Voff of phase place 4.In step 9, if V1 ≠ Von and V1 ≠ Voff owing to judge it is not the translative mode signal level, enter step 12.
In step 10, determine whether timing is 0.3 second.If 0.3 second, judgement is consistent with pattern conversion decision process at the level of the V1 of phase place 4, enters step 11; If not 0.3 second, then judge the kiss the earth signal that is not to use the conscious translative mode of person and sends, enter step 12.
4 phase places of the pattern conversion decision process of step 11 judgement strong mode are in full accord, are converted to strong mode, finish strong mode and judge.
Below, Fig. 5 represents the decision flowchart of weak pattern.Pattern conversion decision process is compared the time set difference of having only phase place with strong mode, by the same decision process, to weak pattern conversion.
Fig. 6 represents the flow chart that stop mode is judged.In Fig. 6, step 1 is carried out the judgement of phase place 3, and temporary transient zero clearing timing confirms in the step 2 whether V1 is Von, if V1=Von enters step 3, carries out timing accumulative total, enters step 4 again.In step 4, confirm whether timing surpasses more than 1 second, if do not surpass 1 second then turn back to step 2, repeat.The pattern conversion decision process of stop mode constitutes by 3 phase places, if surpass more than 1 second, then 3 phase places are set up, enter step 7, carry out the conversion to stop mode, finish the judgement of stop mode.
In step 2,, confirm whether V1 equals Voff if V1 ≠ Von enters step 5.In step 5, if V1 ≠ Voff and V1 ≠ Von owing to judge it is not the translative mode signal level, enter step 8, do not carry out the conversion of pattern, be set at the NG information that the pattern conversion is judged, finish the processing that stop mode is judged.If V1=Voff enters step 6, confirm to count the time.If timing is more than 1 second, phase place 3 is just set up so, enters step 7, as discontented 1 second, just enters step 8, judges NG.
As mentioned above, the voltage of V1 changes according to the pattern conversion decision process of each pattern of expression in the table 1, use suction nozzle 9 away from ground according to lifting ground at short notice repeatedly, kiss the earth, the user need not to change the position of holding, also or the nature holding, just can carry out the conversion of pattern, the use more freely.In addition, the user both can hold handle portion 8, also can hold any one position of extension pipe 5 and operate.By holding the operation of cleaning with the position of suction nozzle 9 near ground, position of holding and ground shorten with the distance of suction nozzle 9, and the sensation of the weight sense when therefore lifting and the operation of cleaning all becomes easily, can further alleviate sense of fatigue, strengthens usability.
And, when head sucting body 21 integral body when constantly built on stilts lifts, all drop on the face of holding on hand from the weight of the front portion of handle position and increased weight, operation when having influenced the pattern conversion, roller is arranged on the rear of head sucting body 21, even the forward lower part of head sucting body 21 and ground contact, as long as the rear is the state that is in built on stilts, also non-contacting state can be detected, just the switching of pattern can be carried out with light operation.
In addition, in the present embodiment, though be to come the division operation pattern, carry out the division operation pattern according to the rotating speed of motor 11 or the combination of the rotating speed of power by electric fan 2 and motor 11 and also be fine by the different capacity that provides of giving electric fan 2.
(embodiment 2)
Fig. 7 is the flow chart that the pattern conversion of the electric dust collector of the 2nd embodiment of the present invention is judged, Fig. 8 represents the flow chart of the strong and weak mode decision of this electric dust collector.In addition, the identical component parts of electric dust collector with prior art and above-mentioned the 1st embodiment marks same symbol, and omits explanation.
In the form of this actual embodiment, different with above-mentioned the 1st example is, the pattern of setting at micro computer 20 is changed decision process in advance, as shown in table 2, strong and weak pattern is the same, whenever the mode 1 of mode decision transfer process is imported among the V1, carry out the conversion of strong mode and weak pattern in order.
<table 2 〉
Figure A20091014912700181
Decision process is changed in the conversion of strong mode and weak pattern and the pattern of stop mode conversion, and micro computer 20 has mode 1 and mode 2 respectively, in each pattern, is provided with setting as shown in table 3 and carries out the pattern conversion.
<table 3 〉
In table 3, when stop mode, in a single day the signal of mode 1 is input as V1, then becomes weak pattern, in conversion, pattern, whenever the signal that mode 1 is arranged is transfused to, will carry out the alternately conversion of strong mode and weak pattern.In the present embodiment, pattern has only strong mode and 2 patterns of weak pattern, when the pattern more than 3, as long as set the order of conversion in advance in micro computer 20, then has only mode 1 also can carry out the conversion of pattern.
Come the process of explanation pattern conversion judgement below by Fig. 7.
In Fig. 7, all be the same till the step 8 with the pattern conversion decision process that illustrated among the embodiment 1.In step 9, be 0.3 second as timing, then the phase place 2 of mode 1 is set up, and enters step 11, carries out the judgement of strong and weak pattern.If not 0.3 second, enter step 10, confirm whether timing is 1 second.If 1 second, the phase place 2 of that mode 2 is just set up, enters step 12, carries out the judgement of stop mode.In step 10, if timing is not 1 second, judge that then the signal that is input to V1 is not the process that the pattern conversion is judged, enter step 14, the zero clearing timing begins to restart the judgement of pattern conversion again from step 1.
In step 11 and step 12, carried out the judgement of strong and weak pattern and stop mode after, in step 13, be confirmed to be the conversion or the NG that carry out pattern, the words of NG enter step 14, are that pattern conversion is with regard to end process if determine.
Fig. 8 represents the strong and weak flow chart of judging, the process to the strong mode conversion is the same among mode 1 and the embodiment 1 in the present embodiment, in Fig. 8, all is the same up to the action till the step 10 among the action of step 10 and Fig. 4.
Step 11 determines to carry out the pattern conversion.In step 11, confirm whether be weak pattern now, if be weak pattern, just enter step 12, determine to strong mode conversion, end process.If not weak pattern, be exactly strong mode or stop mode now, so enter step 13, determine to weak pattern conversion, end process.
In addition, stop mode judges it is that judgement with the stop mode of embodiment 1 is the same, the omission explanation.
According to top formation, the relative number of pattern is used for ground that pattern switches with the number of combinations of the repeatable operation of the contact of suction nozzle 9 and built on stilts still less, can improve operating characteristics.
According to the V1 that is input to mode 2, as shown in table 3 to the conversion of stop mode, having only stop mode is according to mode decision pattern independently, no matter that pattern can just can stop by the input of a pattern conversion decision process.Therefore, when wanting electric dust collector is stopped,, can guarantee security no matter be which pattern can both it be stopped from.
(embodiment 3)
Fig. 9 is the action specification figure that suction nozzle is used on the ground of the electric dust collector of the embodiment of the invention 3.In addition, the component parts identical with the electric dust collector of existing electric dust collector and the foregoing description marks same symbol, omits explanation.
In Fig. 9, different with the foregoing description 1 is the front portion that roller 24 is arranged on head sucting body 21.
Action to the electric dust collector of present embodiment describes below.
When the user cleaned when holding handle portion 8 or extension pipe 5, ground seesawed on the ground with suction nozzle 9.At this moment, as cleaning having on the ground of high low head or on the carpet, according to the kind of carpet, ground with suction nozzle 9 might be of short duration built on stilts.
And, usually the user is moving forward and backward ground when cleaning with suction nozzle 9, because the user does not change the position of standing, when ground with suction nozzle 9 near or during away from user's position, ground and extension pipe 5 angulations can change, and when close position, angle becomes big (obtuse angle), away from the position time, angle diminish (acute angle).Angle hour, head sucting body 21 and connector portions 23 angulations also diminish, near straight line.If the fixed-site of holding, the user is holding the height of handle portion 8 or extension pipe 5 etc., is according to the decision of user's physique mostly, when ground with suction nozzle 9 away from the position, the height of holding will reduce, ground will be easy to float with suction nozzle 9.Therefore, particularly in position far away, have high low head equipotential to put, of short durationly possibly float.
At this moment, head sucting body 21 and connector portions 23 can freely be rotated, and prolong on the pipe 5 because connector portions 23 is connected, and the rear portion of head sucting body 21 is easier floats.
But, in the present embodiment, as shown in Figure 9, roller 24 is arranged on the words in the place ahead of head sucting body 21, in these cases, even if of short duration the floating in the rear of head sucting body 21, the place ahead also is a kiss the earth, so on-off switch 18a can keep closed circuit state, prevent to run counter to user's wish ground input V1 signal.When the user thinks switch mode, the place ahead and the rear of head sucting body 21 have all been carried, by having carried whole ground, produce the V1 signal with suction nozzle 9, carry out the process that the pattern conversion is judged, the degree of accuracy of more can the conversion of raising pattern judging.
In sum, electric dust collector of the present invention is not only avoided unnecessary operation when cleaning, also can reduce the sense of fatigue in the cleaning, realize the high performance electric dust collector of a kind of high added value, and go for the user and holding in the other machines equipment that uses.

Claims (6)

1. electric dust collector is characterized in that comprising:
Inside is provided with the dust collector host body of the electric fan that can produce dust-absorbing airflow;
The suction nozzle of the dust on the cleaning face of suction;
The dust-absorbing airflow that is sucked by above-mentioned suction nozzle is sent to the air intake passage of described dust collector host body;
Be installed in the above-mentioned suction nozzle, be used to detect the contact detecting of the situation that contacts of above-mentioned suction nozzle and swept surface;
Be provided with the different a plurality of patterns of power supply electric power, and control to the control part of the power supply of above-mentioned electric fan; With
The pattern determination section, the signal of signal when suction nozzle that send in above-mentioned contact detecting, above-mentioned contacts with cleaning face when not contacting be combined as with above-mentioned a plurality of patterns in the corresponding predetermined combinations of a pattern time, above-mentioned pattern portion then is defined as mode of operation and the pairing pattern of combinations thereof.
2. electric dust collector according to claim 1, it is characterized in that: described pattern determination section determines the conversion of a plurality of patterns according to pre-set order, being combined as when preestablishing combination of signal when from contact detecting signal input, when suction nozzle contacts with swept surface and noncontact then carried out pattern and switched.
3. electric dust collector according to claim 1 and 2, it is characterized in that also comprising the timing portion that is used to carry out timing, the combination of pattern determination section signal according to from signal contact detecting input, when suction nozzle contacts with swept surface and noncontact time the in the stipulated time that above-mentioned timer is counted is judged.
4. according to the electric dust collector of claim 1~3 described in each, it is characterized in that: described suction nozzle is for sucking the ground suction nozzle of ground dust, described ground comprises being provided with to be mounted with above-mentioned suction inlet towards the head sucting body of the peristome of above-mentioned ground side and an end with suction nozzle and is communicated with the connector portions that the other end and air intake passage are connected together, above-mentioned head sucting body and connector portions form the structure that can freely rotate, and described contact detecting is arranged on the rear of above-mentioned suction inlet.
5. according to the electric dust collector of claim 1~3 described in each, it is characterized in that: described suction nozzle is the ground suction nozzle that sucks ground dust, described ground comprises being provided with to be mounted with above-mentioned suction inlet towards the head sucting body of the peristome of above-mentioned ground side and an end with suction nozzle and is communicated with the connector portions that the other end and air intake passage are connected together, above-mentioned head sucting body and connector portions form the structure that can freely rotate, and described contact detecting is arranged on the place ahead of above-mentioned suction inlet.
6. according to the electric dust collector of claim 1~5 described in each, it is characterized in that: described suction nozzle is the ground suction nozzle that floor suction is used, and comprising: the rotating brush that is used to clean above-mentioned ground dust; Drive the motor of above-mentioned rotating brush; Be electrically connected with the dust collector host body, to the electric wire of above-mentioned motor power supply; And be located on the said wires, when the on-off switch of above-mentioned ground closure during with the suction nozzle kiss the earth,
Described on-off switch has constituted described contact detecting.
CNA2009101491279A 2008-06-17 2009-06-17 Electric dust collector Pending CN101606835A (en)

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CN106343921A (en) * 2015-07-14 2017-01-25 东芝生活电器株式会社 Electric vacuum cleaner
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CN112971590B (en) * 2019-12-18 2022-08-02 东芝生活电器株式会社 Suction port body and electric dust collector
JP7344110B2 (en) 2019-12-18 2023-09-13 東芝ライフスタイル株式会社 Suction mouth body and vacuum cleaner

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