CN205639008U - Blow and exhaust device - Google Patents
Blow and exhaust device Download PDFInfo
- Publication number
- CN205639008U CN205639008U CN201620412569.3U CN201620412569U CN205639008U CN 205639008 U CN205639008 U CN 205639008U CN 201620412569 U CN201620412569 U CN 201620412569U CN 205639008 U CN205639008 U CN 205639008U
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- China
- Prior art keywords
- fan
- suction
- motor
- mouth
- blowing device
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0863—Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction ; Combined suction and blowing nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/007—Conjoint control of two or more different functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H2001/0881—Details for pneumatically dislodging or removing not related to the mouth-piece
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a blow and exhaust device, include: a housing. The tuber pipe is connected the casing has the external mouth of pipe of intercommunication, the motor is located in the casing and provide rotary power, the fan receives motor drive rotates and produces the air current, wherein the fan is followed along rotatory production of first direction steerablely the mouth of pipe to the inside air current that removes of casing, when the air current of following mouth of pipe entering casing meets when blockking up, the fan is steerablely from a direction switching to following along rotatory production of second orientation the casing inside to the air current that the mouth of pipe removed.
Description
Technical field
This utility model relates to a kind of suction and blowing device.
Background technology
Hair-dryer is a kind of common burnisher, and its effect is for clearing up the ground such as garden or street
The leaves being scattered or rubbish.The principle of hair-dryer is that fan rotates and produces air-flow, and air-flow can be being scattered
Leaves or rubbish quickly concentrate in together, thus improve work efficiency.But due in some cases ..,
The leaves concentrated in together and rubbish need nonetheless remain for cleaning, and user needs by extra instrument, example for this
Such as scoop, broom, refuse receptacle etc., cleaning work just can be carried out.This brings inconvenience to user.
The a solution proposing this is to provide a kind of suction and blowing device, and suction and blowing device is except having and blowing
What machine effect was identical blows outside function, the most additionally has suction function.The suction function of suction and blowing device be leaves or
Person's rubbish sucks suction and blowing device, and by connecting the collection device of suction and blowing device, leaves or rubbish is entered receipts
Acquisition means.Collection device can be the refuse bag carried with embodying portability, it is also possible to be that build is bigger
The refuse receptacle that disposably can store more leaves.Therefore, user can be according to real work situation, freely
Select blowing function and inhaling function of suction and blowing device.So it is advantageous in that: user only needs a pressure-vaccum dress
Putting, concentration and the collection that can complete leaves process, it is not necessary to other extra instruments.But suction and blowing device
Also have and there are technical problem needs and overcome.
Present in it, one technical problem is that owing to the volume ratio of leaves is relatively big, is sucking inside suction and blowing device
Shi Rongyi forms blocking, forms the consequence of blocking and makes the circulation of air-flow smooth thus cause the big of air-flow suction
Amplitude weakens, and causes being further exacerbated by blocking, forms vicious cycle.Must examine during to this design suction and blowing device
Consider the problem that suction and blowing device prevents blocking.
It is manually to remove blocking to this kind of common solution.I.e. user need by external tool or
Person's hands clears being blocked in the leaves etc. within suction and blowing device.But there is fan blade inside suction and blowing device
Deng sharp object, easily scratch user.Suction and blowing device is made to quit work it is thus desirable to user first operates, so
After the most manually remove.
Also having a kind of common solution is to arrange disintegrating mechanism on the fan within suction and blowing device, utilizes
The leaves sucked is pulverized by disintegrating mechanism, thus prevents blocking.But this kind of solution remains on deposits
In shortcoming, user during actual use it can be seen that part leaves not in contact with disintegrating mechanism it
Before blocked, such as the mouth of pipe block.Disintegrating mechanism can not be pulverized the most completely.Even if
The crushed mechanism of leaves is pulverized, and the leaves after pulverizing is still easy to stick on disintegrating mechanism.Separately
Outward, disintegrating mechanism the work efficiency that can affect suction and blowing device is set, therefore actual effect is the most undesirable.
Therefore the structure of suction and blowing device must be optimized so that it is the problem that can effectively solve blocking, again
Need not the structure of complexity, meet the demand of user.
Utility model content
In view of this, one of the purpose of this utility model is to provide a kind of suction and blowing device being not easily blocked.
For achieving the above object, this utility model be the technical scheme is that a kind of suction and blowing device, including:
Housing；Airduct, connects described housing and has the mouth of pipe that connection is extraneous；Motor, is positioned at described housing also
Rotary power is provided；Fan, is driven by described motor and carries out rotating and producing air-flow；Wherein said fan can
It is rotated in a first direction and produces the air-flow moved from the described mouth of pipe to described enclosure interior with controlling；When described
When the mouth of pipe enters the airflow obstruction of housing, described fan controllably switches to along second party from first direction
To rotating and producing the air-flow moved to the described mouth of pipe from described enclosure interior.
Preferably, described suction and blowing device includes the detector unit for detecting described motor load, according to described
Testing result generation processes the processing unit of instruction and makes the rotation side of described fan according to described process instruction
To the performance element of switching between described first direction and described second direction.
Preferably, when described detector unit detects the load change of described motor, described processing unit and institute
State performance element and control the direction of rotation change of described fan based on load change.
Preferably, when described detector unit detect the rate of change of described operational factor more than a preset value or
During deviation pre-set interval, described detector unit sends the first detection signal to described processing unit, described process
Unit receives described first detection signal and sends the first process instruction；When described detector unit detects described institute
Stating the rate of change of operational factor not less than described preset value or when being positioned at pre-set interval, described detector unit is sent out
Go out the second detection signal to detect signal also send to described processing unit, described processing unit reception described second
Second processes instruction.
Preferably, detect that described operational factor is preset more than a preset value or deviation when described detector unit
Time interval, described detector unit sends the first detection signal and receives to described processing unit, described processing unit
Described first detection signal also sends the first process instruction；When described detector unit detects described operational factor
Not less than described preset value or when being positioned at pre-set interval, described detector unit sends the second detection signal to institute
Stating processing unit, described processing unit receives described second detection signal and sends the second process instruction.
Preferably, described motor has and encloses the motor shaft being rotated about axis, and described motor shaft connects described fan,
When described motor shaft rotates forward, described fan rotates along described first direction, when described motor shaft is reverse
During rotation, described fan rotates along described second direction.
Preferably, described performance element includes selectable between the first operating position and the second operating position
The switch module of switching, when receiving described first and processing instruction, described switch module switches to the first work
Making position, the most described motor shaft is along reversely rotating；When receive described second process instruction time, described in open
Pass switch between components is to the second operating position, and the most described motor shaft is along rotating forward.
Preferably, described operational factor includes the electric current by described motor, voltage or the rotating speed of described motor.
Preferably, described processing unit is micro-control unit, and described detector unit is electrical with described performance element
Connect described micro-control unit.
Preferably, described fan is aerofoil fan.
Preferably, described first direction is contrary with described second direction.
Preferably, described suction and blowing device includes controlling described fan in the first direction or the control that rotates of second direction
Circuit processed, described control circuit includes the first switch and is connected in series the second switch of described first switch, institute
State second switch operationally in the primary importance making described fan be rotated in a first direction with make described fan
Moving between the second position rotated in a second direction, wherein said control circuit is additionally provided with the regulation of electrical circuit module,
And described the regulation of electrical circuit module is operated when described second switch is positioned at the described second position.
Preferably, described the regulation of electrical circuit module includes reduction voltage circuit, makes to pass through when described reduction voltage circuit works
The voltage of described motor declines.
Preferably, described second switch is double control switch.
Preferably, described second switch also has resetting structure, and described resetting structure makes described second switch produce
The raw trend moved to described primary importance.
Preferably, described resetting-mechanism includes the elastic component making described second switch bias to described primary importance.
Preferably, described control circuit connects described motor, and described motor has and encloses the motor being rotated about axis
Axle, described motor shaft connects described fan, and when described motor shaft rotates forward, described aerofoil fan is along institute
Stating first direction to rotate, when described motor shaft reversely rotates, described fan rotates along described second direction.
Preferably, described first switch operationally starts or cuts out described motor.
For achieving the above object, this utility model be the technical scheme is that a kind of suction and blowing device, including:
Housing, airduct, connect described housing and there is the mouth of pipe that connection is extraneous, fan, operationally along first party
To or second direction rotate and produce air-flow, motor, be used for driving described fan and rotary power being provided, institute
State fan to produce when the air-flow that the described mouth of pipe sucks runs into blocking along the rotation of described first direction, described fan
Controllably rotate along described second direction and produce the air-flow blown out from the described mouth of pipe.
For achieving the above object, this utility model be the technical scheme is that a kind of suction and blowing device, including:
Housing, airduct, connect described housing and there is the mouth of pipe that connection is extraneous, fan, operationally along not Tongfang
Produce the air-flow moved along different directions, motor to rotating, be used for driving described fan along different directions
Rotating, when suction and blowing device runs into blocking, described fan is controllably altered direction of rotation so that air-flow
Moving direction changes.
For achieving the above object, this utility model be the technical scheme is that a kind of suction and blowing device, including:
Housing, airduct, connect described housing and there is the mouth of pipe that connection is extraneous, motor, being positioned at described housing also
Thering is provided rotary power, fan, driven by described motor and carry out rotating and producing air-flow, wherein said fan can
Control ground in the first direction or to rotate in a second direction, the described wind when described fan is rotated in a first direction
Fan produces the air-flow moved from the described mouth of pipe to described enclosure interior, when described fan rotates in a second direction
Described fan produces from described enclosure interior to the air-flow of movement the described mouth of pipe；Described suction and blowing device includes control
Make described fan in the first direction or the control circuit that rotates of second direction, containing being used in described control circuit
The output making described motor when described fan switches to described second direction from described first direction declines
The regulation of electrical circuit module.
For achieving the above object, this utility model be the technical scheme is that a kind of suction and blowing device, including:
Housing, airduct, connect described housing and there is the mouth of pipe that connection is extraneous；Motor, is positioned at described housing also
Rotary power is provided；Fan, is driven by described motor and carries out rotating and producing air-flow；Wherein said fan can
Controlling ground in the first direction or to rotate in a second direction, described suction and blowing device has at least three kinds of mode of operations,
In the first operation mode, described fan is rotated in a first direction, and described fan produces from the described mouth of pipe to institute
State the air-flow that enclosure interior moves；Under the second mode of operation and the 3rd mode of operation, described fan is all along
Two directions rotate, and described fan produces from described enclosure interior to the air-flow of movement the described mouth of pipe；Wherein institute
State motor output in the third mode of operation less than described motor output work in the second operation mode
Rate.
Compared with prior art, the beneficial effects of the utility model are: rotated by switching different directions fan
Direction so that suction and blowing device switches to the air-flow outwards blown out when running into blocking under suction mode, thus convenient
Solve blocking problem.
Accompanying drawing explanation
Above-described the purpose of this utility model, technical scheme and beneficial effect can be by following energy
Enough realize the detailed description of specific embodiment of the utility model, describe in combination with accompanying drawing and clearly obtain.
Identical label and symbol in accompanying drawing and description are used for representing element that is identical or that be equal to.
Fig. 1 is that the suction and blowing device of this utility model one embodiment is in the schematic diagram under suction mode.
Fig. 2 is the schematic diagram that the suction and blowing device in Fig. 1 is under blowing mould formula.
Fig. 3 is the schematic diagram of another embodiment of this utility model.
Fig. 4 is the block schematic illustration of the control circuit of this utility model first embodiment.
Fig. 5 is the control schematic diagram of the control circuit in Fig. 4.
Fig. 6 is the schematic diagram of the control circuit of this utility model the second embodiment.
1, suction and blowing device 2, housing 3, airduct
4, motor 5, fan 6, control circuit
7, detector unit 8, processing unit 9, performance element
21, first opening the 22, second opening 31, blower
32, aspiration channel 33, the mouth of pipe 41, motor drive shaft
61, the first switch 62, second switch the 63, first loop
64, second servo loop 65, circuit control module
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that this utility model
Advantage and feature can be easier to be readily appreciated by one skilled in the art, thus to protection domain of the present utility model
Make apparent clear and definite defining.
Refer to Fig. 1, for the suction and blowing device 1 of this utility model one embodiment.Suction and blowing device 1 includes housing 2
With the airduct 3 connecting housing 2.Housing 2 generally includes two symmetrical Ha Fushi half-shell, logical between half-shell
Cross retaining element to couple together.Retaining element can be common screw-nut etc..Have on housing 2 and separately set
The first opening 21 and the second opening 22 put.Air can pass through the first opening 21 and/or the second opening 22
Realize the circulation exchange inside and outside housing 2.When need not use, under airduct 3 can be dismantled from housing 2
Come, consequently facilitating storage.Suction and blowing device 1 at least has two kinds of mode of operations.When suction and blowing device 1 is in
During one mode of operation, suction and blowing device 1 performs blowing function, and air blows to the external world from airduct 3, the stream of air
Dynamic direction is as shown by the arrows in Figure 2.And when suction and blowing device 1 is in the second mode of operation, suction and blowing device 1
Performing air suction function, air sucks from airduct 3 together with leaves, rubbish etc., the flow direction of air such as Fig. 1
Shown in middle arrow.Therefore the first mode of operation can also be referred to as blowing mould formula, and the second mode of operation can also claim
For suction mode.The performance requirement moved air-flow due to blowing and air draught is each different, therefore normal conditions
Lower air conduit 3 includes blower 31 and aspiration channel 32.Blower 31 is used for connecting housing 2 under blowing mould formula,
And aspiration channel 32 is for connecting housing 2 under suction mode.Blower 31 and aspiration channel 32 be two different
Airduct, the caliber of blower 31 is relatively thin, and the caliber of aspiration channel 32 is thicker.And blower 31 and aspiration channel
32 positions connecting housing 2 also differ.And in the present embodiment, as illustrated in fig. 1 and 2, blower and
Aspiration channel uses same airduct 3, and i.e. under blowing mould formula, this airduct 3 connects housing 2, this wind under suction mode
Pipe 3 still connects housing 2.And further, this airduct 3 connects housing 2 under blowing mould formula and suction mode
Position identical.Preferably, this airduct 3 is all connected by the second opening 22 is dismountable with housing 2.When
So, quantity, the airduct of airduct is not limited by this utility model with the link position of housing.Wherein
An embodiment in, the quantity of airduct is one, and under blowing mould formula, airduct 3 and housing 2 are by the second opening
22 connect；And under suction mode, airduct 3 is different from the 3rd of the second opening 22 with housing 2 by one and opens
Mouth connects.And in an other embodiment, the quantity of airduct is two, respectively blower 31 and air draught
Pipe 32.Blower 31 is connected with housing 2 under blowing mould formula, and aspiration channel 32 connects with housing 2 under suction mode
Connect, and blower 31 and aspiration channel 32 connect the position of housing 2 and differ.
In the present embodiment, one end of airduct 3 connects housing 2, and the other end of airduct 3 has the mouth of pipe 31.
Air enters from the mouth of pipe 33 of one end, and enters housing 2 from other end.The mouth of pipe 33 of airduct 3 and shell
First opening 21 of body 2 constitutes air inlet and the air outlet of gas circulation turnover suction and blowing device 1.Such as Fig. 2
Shown in, under suction and blowing device 1 is in blowing mould formula, air enters housing 2 from the first opening 21, from airduct 3
The mouth of pipe 33 blow to the external world, now the first opening 21 constitutes air inlet, and the mouth of pipe 33 of airduct 3 constitutes
Air port.And as it is shown in figure 1, work as suction and blowing device 1 and be under suction mode, air communication leaves, dust etc. are miscellaneous
Thing is from the mouth of pipe 33 suction casing 2, and discharges from the first opening 21, now the mouth of pipe 33 of airduct 3 constitute into
Air port, and the first opening 21 constitutes air outlet.In the present embodiment, the first opening 21 and the equal edge of the mouth of pipe 33
Longitudinally disposed, and the first opening 21 and the mouth of pipe 33 towards on the contrary.Certainly, this utility model is not
Air inlet, the position of air outlet and quantity are made restriction.In one embodiment, air inlet, air outlet are also
Non-the most longitudinally disposed, such as air inlet is longitudinally toward front setting, and air outlet deviation longitudinal direction is towards ground
Face is arranged so that air inlet and air outlet towards substantially in an angle of 90 degrees degree relation, as shown in Figure 3.And
Under blowing mould formula, air enters from the first air inlet and from the first air outlet blowout；And under suction mode, empty
The gas connection foreign material such as leaves, dust enter from the second air inlet and discharge from the second air outlet.Wherein, first
Air inlet and the second air inlet, the first air outlet and the second air outlet are different.
Suction and blowing device 1 is additionally provided with motor 4 and fan 5.Motor 4 is used for providing rotary power.By power
Source divide, motor 4 can be air motor, it is also possible to be power-actuated electro-motor, it is also possible to be with
Gasoline is the gasoline motor of fuel.And as modal electro-motor, electro-motor again can be according to carbon brush
Type division is brush motor or brushless motor.And electro-motor divides can be divided into according to power supply type
AC motor and DC motor.Motor 4 has motor drive shaft 41, and motor 4 can drive around the axis of motor drive shaft 41
Rotate along clockwise direction or in the counterclockwise direction dynamicly.Fan 5 can by motor 4 drive corresponding rotate from
And produce air-flow.In the present embodiment, fan 5 connects motor drive shaft 42, thus by the driving of motor drive shaft 42
Corresponding rotation.Certainly, the drive mechanisms such as sun planetary gear can also be provided with between fan 5 and motor 4,
In order to improve transmission efficiency.Fan 5 is arranged on the inside of housing 2.Fan 5 can be aerofoil fan, also
It can be centrifugal fan etc..Aerofoil fan refers to that fan rotates along fan axis, and the air-flow of generation is along fan shaft
The direction that line extends is moved.And centrifugal fan refers to that fan rotates along fan axis, the air-flow of generation is along vertical
The direction that fan axis extends is moved.In the present embodiment, fan 5 is aerofoil fan.Aerofoil fan is controlled
System ground is in the first direction or second direction rotates.Wherein first direction is contrary with second direction.As it is shown in figure 1,
Under suction mode, fan 5 (the arrow A in Fig. 1) the most in the first direction rotates and produces from the mouth of pipe
33 to the air-flow of the internal movement of housing 2；And as in figure 2 it is shown, fan 5 is controllably along under blowing mould formula
Two directions (the arrow B in Fig. 2) rotate and produce from the internal air-flow moved to the mouth of pipe 33 of housing 2.And control
What fan processed switching different directions rotated is to switch different direction of rotation by motor.When motor 4 is around horse
Reaching the axis of axle 41 when being rotated in a clockwise direction, fan 5 is drivingly rotated in a first direction；Work as motor
4 around the axis of motor drive shaft 41 rotate in the counterclockwise direction time, fan 5 is drivingly rotated in a second direction.
Certainly, control fan 5 switch different directions rotate can also realize by other means.Such as, at motor
Being provided with clutch in drive mechanism between 4 and fan 5, clutch is operationally in the first clutch
Switching between position and the second clutch position, wherein the first clutch position correspondence fan is rotated in a first direction
Position, the position that the second clutch position correspondence fan rotates in a second direction, by changing the position of clutch
Put can also realize fan 5 the most in the first direction or second direction rotate, such motor can begin
Rotate in one direction eventually.
During the use of suction and blowing device 1 reality, due to rubbish that leaves equal-volume is bigger under suction mode
Suction and blowing device 1 can be sucked with air-flow, easily the gas channel within suction and blowing device 1 be resulted in blockage.Formed
The unimpeded of gas channel can be affected after blocking further so that the air-flow passed through is more and more weak, thus impact is blown
Inhale the normal use of device 1.Therefore in this utility model, when the air-flow entering housing 2 from the mouth of pipe 33 is met
To when blocking or be obstructed, fan 5 controllably switches to rotate in a second direction from first direction, thus
Produce from the internal air-flow moved to the mouth of pipe 33 of housing 2.It is to say, when air-flow runs into blocking, fan
5 are controllably altered direction of rotation, so that the moving direction of air-flow also changes, so that air-flow is from airduct 4
The mouth of pipe 33 outwards blow out, the problem so solving blocking by the airflow function of outwards blowout.When blocking is asked
After the key to exercises is determined, fan 5 can become again being rotated in a first direction, thus continues to produce from the mouth of pipe 33 suction
Air-flow, performs the work of normal suction mode.
The following is two each and every one different embodiments.In the first embodiment, as shown in Figure 4 and Figure 5, pressure-vaccum
Device 1 can automatically detect air-flow and runs into the situation of blocking and control fan change direction of rotation, thus
Reach the purpose of block clearing.In this embodiment, suction and blowing device 1 has the control circuit being electrically connected with motor 4
6, control circuit 6 can automatically detect meets stifled situation and controls the direction of rotation of motor 4 accordingly under suction mode.
Specifically, control circuit 6 include detect motor 4 load detector unit 7, according to testing result generation at
The processing unit 8 of reason instruction and make the direction of rotation of fan in a first direction and second party according to processing instruction
The performance element 9 of switching between to.
When normally working under suction and blowing device 1 is at suction mode, motor 4 is in stable duty, i.e. horse
Reach the load of 4 all in normal situation.Detector unit 7 is able to detect that the load of now motor 4 is in
Normal duty, shows that now suction and blowing device 1 normally works.Under suction and blowing device 1 is at suction mode,
Due to it is possible that the objects such as suction leaves have the reason of bigger adhesion and are blocked in suction and blowing device 1
During the situation in portion, compared with normal state can there is change, in general, the load of motor 4 in the load of motor 4
Can become big.When detector unit 7 detects that the load of motor 4 produces change, correspondingly, processing unit 8 He
Performance element 9 based on load can change the direction of rotation generation of control fan and change.And detect load and produce
The mode of change can have more multi-form, and one form of which is the operational factor of detection motor.If detection
Unit 7 detects abnormal operational factor, then show that suction and blowing device 1 is likely encountered blocking, need to take phase
The action answered is to get rid of the situation of blocking.Operational factor can be to characterize all ginsengs that motor the most normally works
Number, the voltage of such as motor, electric current or rotating speed etc..In the present embodiment, detector unit 7 is electrically to connect
Being connected on the sensor in control circuit 6, it can detect the running voltage of motor.When detector unit 7 detects
During to running voltage held stationary state, show that suction and blowing device is in the state of normal work, detector unit 7
The first detection signal can be sent.First detection signal representative is meant that and remains unchanged.When detector unit 7 is visited
When measuring the fluctuation that running voltage has by a relatively large margin, show that the working condition of motor 4 occurs abnormal, such as its
Load becomes big, and cause this reason is that suction and blowing device 1 runs into blocking air draught when, therefore detects list
Unit 7 can send the first detection signal.Needing current motor 4 of the implication that first detection signal represents
Operation makes a change.And detector unit 7 detection operations voltage has the mode of larger fluctuation can have two kinds of detections
Form, a kind of form is rate of change voltage being detected more than a preset value is it is believed that there is ripple by a relatively large margin
Dynamic, and when detecting that the rate of change of voltage is not less than this preset value, i.e. it is believed that voltage is maintained at plateau.
Preset value can be to pre-set.Whether additionally can also detect its rate of change more than a pre-set interval.Work as inspection
The rate of change of the voltage measured more than during a pre-set interval it is believed that there is fluctuation by a relatively large margin, and the change of voltage
It is believed that voltage is maintained at plateau when rate is positioned at this pre-set interval.Another form is to detect electricity
Think to have when the numerical value of pressure own is more than a preset value and fluctuate by a relatively large margin, and the numerical value of voltage itself not less than
During this preset value, it is believed that voltage is maintained at plateau.Can certainly be whether to detect the numerical value of voltage own
Exceed pre-set interval, and when exceeding pre-set interval, it is believed that have and fluctuate by a relatively large margin, and be positioned at this pre-set interval
Time think and be maintained at plateau.The most in other examples, the object of detector unit 7 detection also may be used
To be the electric current by motor 4, it is also possible to be the rotary speed of motor 4.The concrete structure of detector unit 7
Can also be the sensor of various ways, such as inductance sensor, Hall element etc..
Processing unit 8 is for receiving the detection signal of detector unit and sending process instruction accordingly.In this enforcement
In example, the micro-control unit (MCU) that processing unit 8 can be attached in control circuit 6.Microcontroller list
Unit has multiple pin interface, and those pin interface are electrically connected with detector unit 7, performance element 9 respectively.
The detection signal of detector unit 7 passes to processing unit 8 by pin interface.Specifically, when processing unit 8
When receiving the first detection signal, processing unit 8 can send the first process instruction；When processing unit 8 receives
During to the second detection signal, processing unit 8 can send the second process instruction.First processes at instruction or second
Reason instruction passes to performance element 9 again by those pin interface.
Performance element 9 performs action accordingly according to various process instructions.When performance element 9 receives at second
During reason instruction, performance element 9 maintains the direction of rotation of motor constant, thus drives the direction of rotation of fan to tie up
Holding constant, suction and blowing device 1 still produces from the mouth of pipe 33 to the air-flow of the internal movement of housing 2.And when performing
When unit 9 receives the first process instruction, performance element 9 changes the direction of rotation of motor, thus drives wind
The direction of rotation of fan changes so that suction and blowing device 1 produces from the internal air-flow to the mouth of pipe 33 blowout of housing 2.
In the present embodiment, performance element 9 is one group of switches set.Switches set controllably in the first operating position and
Switch between second operating position.And when switches set is positioned at different operating positions corresponding to motor difference
Direction of rotation.When receiving the second process instruction, switches set is in the second operating position, and motor is along forward
Rotating, and when receiving the first process instruction, switches set is in the first operating position, motor is along reversely rotating.
In other examples, performance element is multiple switches set, each switches set two works the most again
Make to move between position, thus multiple switches set is combined into one is monolithically fabricated different duties, each
The corresponding different process instruction of duty.
Therefore the suction and blowing device 1 in the present embodiment can automatically detect suction and blowing device 1 and meet stifled situation, and oneself
The corresponding direction of rotation changing motor 4 in dynamic ground, so that what suction and blowing device 1 was sucked from the mouth of pipe 33 by generation
Air-flow is changed into the air-flow produced from the mouth of pipe 33 blowout, utilizes the air-flow of blowout to clear up blocking.Suction and blowing device
The mode of 1 block clearing is achieved in that suction and blowing device 1 is in suction mode, and fan 5 is rotated in a first direction
And producing the air-flow sucked from the mouth of pipe 33, detector unit 7 detects the operation conditions of motor 4 automatically, if at it
In normal operating conditions, performance element 9 maintains fan 5 to be rotated in a first direction；If suction and blowing device 1 meets
Block and cause the operation of motor 4 to occur extremely, then detector unit 7 is able to detect that the exception fortune of motor 4
OK, performance element 9 can change the direction of rotation of fan 5 according to instruction so that it is rotates in a second direction and produces
The raw air-flow from the mouth of pipe 33 blowout, thus the problem solving blocking.
In such an embodiment, it is preferable control circuit 6 also includes the regulation of electrical circuit module.By this circuit
Adjusting module so that the output of fan 5 motor when first direction switches to second direction declines.When
Fan 5 rotates when first direction switches to second direction, and turning to of motor is changed the most accordingly.Work as motor
When changing to another direction from a direction in the direction of rotation short time, instantaneous can produce bigger electric current,
The instantaneous output making motor is bigger, and the effect therefore arranging the regulation of electrical circuit module is to reduce motor
Output, thus play the purpose extending electrical machinery life.Certainly, the regulation of electrical circuit module only can be arranged to
When fan switches to second direction work from first direction, and do not work when other.Additionally real at other
Executing in example, control circuit 6 can not also comprise the regulation of electrical circuit module.
Therefore, in this preferred embodiment, suction and blowing device 1 has at least three kinds of different mode of operations,
In the first operation mode, suction and blowing device 1 is i.e. in normal suction mode, and user can be according to actual ring
Border demand selects this mode of operation.Under this mode of operation, fan is rotated in a first direction, and fan produces from pipe
The air-flow that mouth moves to enclosure interior；In the second operation mode, suction and blowing device 1 is i.e. in normal blowing mould
Formula, user can select this mode of operation according to actual environmental demand.Under this mode of operation, fan is along
Two directions rotate, and fan produces the air-flow moved from enclosure interior to the mouth of pipe；Suction and blowing device 1 is being in first
The 3rd mode of operation can be switched to when meeting stifled under mode of operation.This mode of operation non-user according to demand and
Unrestricted choice, but automatically trigger after meeting certain trigger condition.In this operating mode, fan edge
Second direction rotates, and fan produces the air-flow moved from enclosure interior to the mouth of pipe, but due to the regulation of electrical circuit mould
The reason that block works in such a mode so that described motor output in the third mode of operation is less than institute
State motor output in the second operation mode.
In a second embodiment, suction and blowing device 1 can be according to the real experiences of user, when the feelings meeting blocking
During condition, Non-follow control ground changes the direction of rotation of motor 4, so that suction and blowing device 1 is correspondingly by producing
The air-flow sucked from the mouth of pipe 33 is changed into the air-flow produced from the mouth of pipe 33 blowout, utilizes the air-flow of blowout clear
Reason blocking.
As shown in Figure 6, in this embodiment, suction and blowing device 1 includes controlling fan in the first direction or the second
The control circuit 6 that direction rotates.Control circuit 6 is provided with the first switch 61 and the second switch being connected in series
62.First switch 61 and second switch 62 are respectively positioned on the outside of housing 2, and operationally can be controlled by user
System.In a preferred embodiment, the first switch 61 and second switch 62 all can be arranged on suction and blowing device 1
Handle on, it is simple to user uses operation.Wherein the first switch 61 is for the break-make of whole control circuit 6.
When the first switch 61 is in ON state, whole control circuit 6 turns on；When the first switch 61 is in OFF
During state, whole control circuit 6 disconnects, and whole suction and blowing device 1 is in stopped status.And second switch 62
For controlling the direction of rotation of motor 4, and then control the direction of rotation of fan 5.Second switch 62 is operable
Ground switches between the first position and the second position.When second switch 62 switches to primary importance, this time control
Circuit 6 processed makes fan 5 be rotated in a first direction.When second switch 62 switches to the second position, this time control
Circuit 6 processed makes fan 5 rotate in a second direction.Second switch 62 can be to have different forms.In this reality
Executing in example, second switch 62 is double control switch.Control circuit 6 has coordinated with second switch 62
Primary Ioops 63 and second servo loop 64.First loop 63 and second servo loop 64 can alternatively turn on.When second
Switch 62 is user-operably when moving to primary importance, and second switch 62 makes the first loop 63 turn on, and
Second servo loop 64 is in the state of disconnection.And when second switch 62 is user-operably mobile to the second position,
Second switch 62 makes second servo loop 64 turn on, and the first loop 63 is in the state of disconnection.Merit attention
, control circuit 6 also includes circuit control module 65, circuit control module 65 is arranged on second time
In road 64 so that when second servo loop 64 is switched on, circuit control module 65 is operated.Circuit controls mould
The effect of block 65 makes the voltage of in second servo loop 64 decline.This is due to when they jam, user control
Second switch 62 processed makes second servo loop 64 turn on, so that fan 5 rotates in a second direction, utilizes profit
The purpose of block clearing is reached with the air-flow of fan 5 blowout.Owing to only needing block clearing, fan 5 and motor 4
It is not required to the highest rotating speed and the longest working time, therefore circuit control module 65 is set and makes to pass through
The electric current of motor 4, voltage decline, thus reach to protect motor, the purpose increased the service life.Circuit control
Molding block 65 can be to have different forms, and in one of which embodiment, circuit control module 65 has
Having reduction voltage circuit, reduction voltage circuit can make to be declined by the voltage of motor, makes motor at a lower-wattage
Work under state, thus reach to protect the purpose of motor.In another embodiment, circuit control module
In there is PWM module, thus be adjusted circuit controlling.
In a preferred embodiment, second switch 62 also has resetting structure (not shown), resetting structure
Second switch 62 is made to produce the trend moved to primary importance.Therefore under the effect not having external force or make
On the premise of user operates, second switch 62 is always at primary importance.When user is opened second
Applying active forces in pass 62 are to overcome the reset response of resetting structure, and second switch 62 can move from primary importance
Move to the second position.Once user relieves the active force being applied on second switch 62, second switch 62
Primary importance will be automatically returned to.Resetting structure has various structures form, one of which embodiment
In, resetting structure is an elastic component making second switch bias to primary importance.
The mode of suction and blowing device block clearing is achieved in that suction and blowing device is under suction mode, second switch 62
Being in primary importance, fan 5 rotates and produces the air-flow sucked from the mouth of pipe, when user realizes that airduct 3 runs into
During blocking, preferably with the mode of operation operation second switch of pressing so that it is move to second from primary importance
Put.When second switch 62 moves to the second position, fan 5 changes direction of rotation and produces from the mouth of pipe 33
The air-flow of blowout, the air-flow from the mouth of pipe 33 blowout can be by the leaves being blocked in suction and blowing device 1, dust etc.
Tamper outwards blows out from the mouth of pipe 33, thus the problem solving blocking.When user realizes the blocking of airduct 3
After Resolving probiems, user can unclamp the active force acted on second switch 62, and second switch 62 exists
Automatically reseting under the effect of resetting structure to primary importance, fan 5 changes the most once again and returns back to initial rotation
Direction also produces the air-flow sucked from the mouth of pipe 33.Certainly, second switch 62 is not provided with resetting structure not
Do not interfere with enforcement of the present utility model, still fall within protection domain of the present utility model.
The most as shown in Figure 6, control circuit also includes being connected in series the first switch 61
With the 3rd switch 66 of second switch 62, the 3rd switch 66 is used for controlling suction and blowing device 1 in blowing mould formula and suction
Switching between pattern.When the 3rd switch 66 is in the first operating position, suction and blowing device 1 is in blowing mould formula；
When the 3rd switch 66 is in the second operating position, suction and blowing device 1 is in suction mode.Especially, the 3rd open
Close 66 inside being arranged on suction and blowing device 1.3rd switch 66 is to be triggered at the first working position by trigger member
Put and move between the second operating position, be therefore not required to the Non-follow control operation that user is extra.When
When three switches 66 only exist in the second operating position, say, that when suction and blowing device is under suction mode, second opens
62 passes just can be user-operably movement.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that,
For the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to
Making some deformation and improvement, these broadly fall into protection domain of the present utility model.
Claims (22)
1. a suction and blowing device, including:
Housing；
Airduct, connects described housing and has the mouth of pipe that connection is extraneous；
Motor, is positioned at described housing and provides rotary power；
Fan, is driven by described motor and carries out rotating and producing air-flow；Wherein said fan is controllably along
One direction rotates and produces the air-flow moved to described enclosure interior from the described mouth of pipe；
It is characterized in that: when described from the mouth of pipe enter housing airflow obstruction time, described fan controllably from
First direction switches to rotate in a second direction and produce and moves to the described mouth of pipe from described enclosure interior
Air-flow.
Suction and blowing device the most according to claim 1, it is characterised in that: described suction and blowing device includes for examining
Survey the detector unit of described motor load, process the processing unit of instruction according to described testing result generation
And make the direction of rotation of described fan at described first direction and described second according to described process instruction
The performance element of switching between direction.
Suction and blowing device the most according to claim 2, it is characterised in that: when described detector unit detects institute
State the load change of motor, described processing unit and described performance element and control described based on load change
The direction of rotation of fan changes.
Suction and blowing device the most according to claim 3, it is characterised in that: when described detector unit detects institute
State motor operational factor rate of change more than a preset value or deviation pre-set interval time, described detection
Unit sends the first detection signal and detects to described processing unit, described processing unit reception described first
Signal also sends the first process instruction；When described detector unit detects the change of the operational factor of described motor
Rate is not less than described preset value or when being positioned at pre-set interval, and described detector unit sends the second detection letter
Number giving described processing unit, described processing unit receives described second detection signal and also sends the second process
Instruction.
Suction and blowing device the most according to claim 3, it is characterised in that: when described detector unit detects institute
When stating the operational factor of motor more than a preset value or deviation pre-set interval, described detector unit sends
First detection signal gives described processing unit, and it is concurrent that described processing unit receives described first detection signal
Go out the first process instruction；When described detector unit detects that the operational factor of described motor is not less than described
Preset value or when being positioned at pre-set interval, described detector unit sends the second detection signal to described process
Unit, described processing unit receives described second detection signal and sends the second process instruction.
6. according to the suction and blowing device described in claim 4 or 5, it is characterised in that: described motor has around axle
The motor shaft that line rotates, described motor shaft connects described fan, when described motor shaft rotates forward,
Described fan rotates along described first direction, and when described motor shaft reversely rotates, described fan is along institute
State second direction to rotate.
Suction and blowing device the most according to claim 6, it is characterised in that: described performance element includes may select
The switch module of switching between the first operating position and the second operating position, when receiving described the
During one process instruction, described switch module switches to the first operating position, and the most described motor shaft is along anti-
To rotation；When receiving described second and processing instruction, described switch module switches to the second working position
Putting, the most described motor shaft is along rotating forward.
8. according to the suction and blowing device described in claim 4 or 5, it is characterised in that: described operational factor includes leading to
Cross the electric current of described motor, voltage or the rotating speed of described motor.
Suction and blowing device the most according to claim 2, it is characterised in that: described processing unit is microcontroller list
Unit, described detector unit is electrically connected with described micro-control unit with described performance element.
Suction and blowing device the most according to claim 1, it is characterised in that: described fan is aerofoil fan.
11. suction and blowing devices according to claim 1, it is characterised in that: described first direction and described second
In opposite direction.
12. suction and blowing devices according to claim 1, it is characterised in that: described suction and blowing device includes controlling institute
State fan in the first direction or second direction rotate control circuit, described control circuit includes that first opens
Close and be connected in series the second switch of described first switch, described second switch operationally make described
Primary importance that fan is rotated in a first direction and at the second making described fan rotate in a second direction
Moving between putting, wherein said control circuit is additionally provided with the regulation of electrical circuit module, and described the regulation of electrical circuit mould
Block is operated when described second switch is positioned at the described second position.
13. suction and blowing devices according to claim 12, it is characterised in that: described the regulation of electrical circuit module includes fall
Volt circuit, makes when described reduction voltage circuit works to be declined by the voltage of described motor.
14. suction and blowing devices according to claim 12, it is characterised in that: described second switch is double control switch.
15. suction and blowing devices according to claim 12, it is characterised in that: described second switch also has reset
Structure, described resetting structure makes described second switch produce the trend moved to described primary importance.
16. suction and blowing devices according to claim 15, it is characterised in that: described resetting-mechanism includes making described
The elastic component that second switch biases to described primary importance.
17. suction and blowing devices according to claim 12, it is characterised in that: described control circuit connects described electricity
Machine, described motor has and encloses the motor shaft being rotated about axis, and described motor shaft connects described fan, when
When described motor shaft rotates forward, described aerofoil fan rotates along described first direction, when described motor
When axle reversely rotates, described fan rotates along described second direction.
18. suction and blowing devices according to claim 12, it is characterised in that: described first switch operationally opens
Move or close described motor.
19. 1 kinds of suction and blowing devices, including:
Housing,
Airduct, connects described housing and has the mouth of pipe that connection is extraneous,
Fan, the most in the first direction or second direction rotates and produces air-flow,
Motor, is used for driving described fan and providing rotary power,
It is characterized in that: described fan rotates along described first direction and produces the air-flow chance sucked from the described mouth of pipe
During to blocking, described fan controllably rotates what generation blew out from the described mouth of pipe along described second direction
Air-flow.
20. 1 kinds of suction and blowing devices, including:
Housing,
Airduct, connects described housing and has the mouth of pipe that connection is extraneous,
Fan, operationally rotates along different directions thus produces the air-flow moved along different directions,
Motor, is used for driving described fan to rotate along different directions,
It is characterized in that: when suction and blowing device runs into blocking, described fan be controllably altered direction of rotation from
And make the moving direction of air-flow change.
21. 1 kinds of suction and blowing devices, including:
Housing,
Airduct, connects described housing and has the mouth of pipe that connection is extraneous,
Motor, is positioned at described housing and provides rotary power,
Fan, is driven by described motor and carries out rotating and producing air-flow, and wherein said fan is controllably along the
One direction or rotate in a second direction, when described fan is rotated in a first direction, described fan produces
The air-flow moved to described enclosure interior from the described mouth of pipe, when described fan rotates in a second direction time institute
State fan to produce from described enclosure interior to the air-flow of movement the described mouth of pipe；
It is characterized in that: described suction and blowing device includes controlling described fan, and in the first direction or second direction rotates
Control circuit, containing for switching to from described first direction when described fan in described control circuit
The regulation of electrical circuit module that the output of described motor declines is made during described second direction.
22. 1 kinds of suction and blowing devices, including:
Housing,
Airduct, connects described housing and has the mouth of pipe that connection is extraneous；
Motor, is positioned at described housing and provides rotary power；
Fan, is driven by described motor and carries out rotating and producing air-flow；Wherein said fan is controllably along
One direction or rotate in a second direction,
It is characterized in that: described suction and blowing device has at least three kinds of mode of operations, in the first operation mode,
Described fan is rotated in a first direction, and described fan produces and moves to described enclosure interior from the described mouth of pipe
Air-flow；Under the second mode of operation and the 3rd mode of operation, described fan all rotates in a second direction,
Described fan produces from described enclosure interior to the air-flow of movement the described mouth of pipe；Wherein said motor exists
Output under 3rd mode of operation is less than described motor output in the second operation mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016100815285 | 2016-02-05 | ||
| CN201610081528 | 2016-02-05 |
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| CN205639008U true CN205639008U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610301762.4A Active CN107044431B (en) | 2016-02-05 | 2016-05-09 | Blowing and sucking device |
| CN201620412569.3U Active CN205639008U (en) | 2016-02-05 | 2016-05-09 | Blow and exhaust device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610301762.4A Active CN107044431B (en) | 2016-02-05 | 2016-05-09 | Blowing and sucking device |
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| CN108635135B (en) * | 2018-06-01 | 2024-06-04 | 无锡市人民医院 | Bed ventilation device with physiotherapy function |
| CN110883599B (en) * | 2019-11-12 | 2021-07-13 | 河南飞龙(芜湖)汽车零部件有限公司 | Be applied to sweeps descaling machine between automobile exhaust manifold machine tooling workshop |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006145168A (en) * | 2004-11-24 | 2006-06-08 | Toyota Motor Corp | Dehumidifying cooler |
| CN201671863U (en) * | 2009-07-17 | 2010-12-15 | 深圳寿力亚洲实业有限公司 | Fan Control System |
| KR101931365B1 (en) * | 2011-08-22 | 2018-12-24 | 삼성전자주식회사 | Robot cleaner and method for controlling the same |
| CN103321171B (en) * | 2012-03-19 | 2015-09-09 | 苏州宝时得电动工具有限公司 | Blower |
| CN204919445U (en) * | 2015-05-15 | 2015-12-30 | 苏州宝时得电动工具有限公司 | Pressure -vaccum machine |
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| CN107044431B (en) | 2021-06-11 |
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