Background technology
Air purifier is a kind of novel household electrical equipment, and it has functions such as automatic detection smog, elimination dust, elimination peculiar smell and pernicious gas, sterilization.Air purifier is made up of systems such as circuit for producing high voltage, anion generator, ventilation blower (gentle breeze fan), air cleaners usually.By the ventilation blower in the air purifier room air is circulated, the air that pollutes is removed all contaminations or absorption after filtering by the air cleaner in the machine, process is contained in the anion generator (circuit for producing high voltage during work in the anion generator produces negative direct current high voltage) of air outlet then, with the continuous ionization of air, produce a large amount of anions, sent by ventilation blower (gentle breeze fan), form the anion air-flow, the purpose that reach cleaning, purifies air.Wherein, filter, anion generator, ventilation blower that is used to carry out air cleaning etc. is referred to as clean unit.
The purification style of air purifier mainly contains following type: the one, filter absorbent-type, promptly adopt physics formula purification style, utilize the porous filter material, as nonwoven, filter paper, fiber, active carbon, foam etc. (the strongest filter material of adsorption capacity is a HEPA high-density air filter material at present), suspended particulate in the absorbed air, pernicious gas, thus purify air; The 2nd, the electrostatic precipitation type, promptly electrostatic purification style makes in the air pollutant charged by corona discharge, uses dust collect plant to collect charged particle, reaches the purpose that purifies air; The 3rd, the chemical formula purification style, as: photocatalytic method or formaldehyde scavenger or medicament etc.; It is exactly compound having again: utilize above-mentioned filtration, static and/or chemical cleaning method mode to purify air simultaneously.In principle, several modes that purify air all have certain detergent power to room air more than.
Progress along with science and technology, air purifier is as a kind of intelligent artifact, also experienced the different stages, phase I: the air purifier that fixing, clean unit can not lift, this air purifier is by physics formula purification style (as: active carbon or HEPA screen pack), electrostatic purification style (as: anion) or chemical formula purification style (as: photocatalytic method or formaldehyde scavenger or medicament etc.), in the fixed position, level altitude purifies air.
Second stage: air purifier is: fixing, the liftable air purifier of clean unit.This air purifier is installed in the fixed position, but the air cleaning member in the clarifier can move up and down according to circumstances at differing heights, thereby reaches the effect of a certain regional air of effective circulation.It is ZL03106666.6 that the concrete technical scheme of relevant this air purifier is asked for an interview the patent No., and name is called the patent documentation of " air purifier ".In this patent documentation, disclosed following content: clarifier is provided with lifting unit, this unit comprises the tooth bar that longitudinally is arranged on the casing inner surface, thereby vertically forms on the outer surface of housing so that hold the guide groove that tooth bar leads to the elevating movement of housing; With tooth bar engagement and the pinion that supports rotationally by housing; And be arranged on the housing place and make pinion clockwise or the motor that is rotated counterclockwise.During the motor rotation, make air cleaning member pass through tooth bar and move in vertical direction.
In addition, also has a kind of air purifier that moves certainly in the prior art.The driver part of this air purifier by being provided with is implemented in around the presumptive area and purifies air when mobile.It is ZL200410043117.4 that concrete technical scheme is asked for an interview the patent No., and name is called the patent documentation of " air purifying robot and system thereof "; ZL200510051309.4, name is called the patent documentation of " air purifier and control method thereof ".This robot can realize moving up and down but its air cleaning member can't be implemented in differing heights from moving.
In above various air purifiers, air purifier especially movably owing to be provided with sensor-based system, make this air purifier can use various sensor sensing external environments and makes corresponding reaction.Obstacle sensor for example, sensor provided reaction after machine collided barrier, machine perceives reverses end for end after the existence of barrier and turns to, further, obstacle sensor also can just perceive the existence of barrier when also not touching barrier, underspeeds in advance to lower impulse force to barrier, in addition, drop into lower for fear of machine from the step equal-height position, also be provided with the sensor of perception operation surface height, the existence that can sense stair, step etc.But, at the liftable air purifier of clean unit that has occurred at present, but there is not the checkout gear of perception top barrier, therefore, this class air purifier exists the situation that is subjected to top barrier restriction even destroys.
The specific embodiment
Fig. 1,2 is the structural representation of the embodiment one of the utility model air processor; Air processor in the present embodiment is fixing Liftable type, particularly, described air processor comprises main body 300, in described main body 300, be provided with control module and lifting unit 302, the free end of described lifting unit 302 links to each other with air conditioner unit 301, described lifting unit 302 is controlled by control module and carries out free lifting, thereby changes the height of connected air conditioner unit 301; Be provided with sensor unit 303 at described air conditioner unit 301 upper surfaces, whether the upper area that is used to detect air conditioner unit 301 has barrier, and detected obstacle signal sent to described control module, control module is controlled corresponding movable member according to this obstacle signal and is made and dodge action.
Wherein, described sensor unit 303 can adopt multiple structure, as shown in Figure 3, for sensor unit embodiment one described in the utility model detects principle schematic, in the present embodiment, described sensor unit 303 adopts the paired sensing element that can form a signalling channel, as a kind of or any combination in wireless electron signal transmission element, infrared ray transmission/receiving element, light transmission/receiving element, Laser emission/receiving element and the ultrasound emission/receiving element.
As shown in Figure 3, sensor unit comprises transmitting tube 3031 and receiving tube 3032, and it is a pair of infrared sensing device, is located at the upper surface of air conditioner unit 301.This infrared sensing device utilizes the principle of reflection of infrared emission/reception, surveys to have or not signal reflex in the scope of reflector space A.After infrared transmitting tube emission infrared signal, if within the altitude range of reflector space, infrared receiving tube does not receive corresponding signal, and control module thinks then that according to this information elevating mechanism can continue to rise.If within the altitude range of reflector space, infrared receiving tube receives corresponding signal, control module thinks then that according to receiving tube institute feedack there is barrier the upper end of air cleaning unit, and control module control elevating mechanism keeps Present Attitude or control elevating mechanism to descend.
In the preferred version,, can be provided with many to the infrared sensing device, and many at the upper surface of air cleaning unit to the infrared sensing device layout that can be centrosymmetric for making the information detected more accurate.
At another kind of embodiment, transmitting tube 3031 and receiving tube 3032 can be a pair of laser sensor, that is: a Laser emission and a laser pick-off.This calculates distance to laser sensor by measuring from the time that is transmitted between returning.In the scope of reflector space, survey and have or not signal reflex.Preset distance value in the control module, when the distance value that goes out from the Time Calculation that is transmitted between returning according to laser signal during greater than this preset distance value, control module control elevating mechanism continues to rise.Otherwise when being less than or equal to this preset distance value as if the distance value that calculates, control module control elevating mechanism keeps Present Attitude or decline.
At another kind of embodiment, transmitting tube 3031 and receiving tube 3032 can be a pair of sonac, that is: a ultrasound emission pipe and a ultrasonic receiving tube.This ultrasonic sensing utilizes the echo of ultrasound emission/receiver to receive principle, by the ultrasonic transmitter reflected signal, by the time length of the received signal of ultrasonic receiver, thereby calculates distance apart from the top barrier.
Except that above-mentioned embodiment, transmitting tube 3031 and receiving tube 3032 also can be a pair of optical sensor or wireless electron signal transducer, do not repeat them here.
Fig. 4 is that sensor unit embodiment two described in the utility model detects principle schematic.In the present embodiment, described sensor unit comprises image-pickup device 3033 and light emitting devices 3034, described light emitting devices 3034 sends light, object B surface above air conditioner unit 301 forms hot spot, described image-pickup device 3033 is gathered the image of described hot spot, and send to a processing unit 3035 and handle, to record the distance of air conditioner unit 301 to the body surface that forms hot spot.
Particularly, install a camera at the upper surface of air conditioner unit 301.Carry out relevant treatment by representation of laser facula, extract the characteristic information of image, set up the quantitative relationship of characteristic information and tested displacement, thereby finish the non-cpntact measurement of displacement camera collection.Specifically: this camera is the USB digital camera head, and light emitting devices is a generating laser.When lifting unit 302 drove air conditioner unit 301 risings, the beam of laser that generating laser sends was shone to air conditioner unit 301 tops.Form the hot spot pattern after reflection on object B surface, guarantee that it is in the scope that the USB camera is caught, this light spot image of USB camera collection, and the result fed back to a processing unit 3035, this processing unit 3035 can be a part of this sensor unit, also can be a part in the control module.Known in the length of base, under the situation that generating laser and camera relative position are determined, when the target object that is shone by laser when the camera axial direction moves, the size of picture point (being laser facula) also changes thereupon.In actual conditions, laser instrument is owing to exist an angle of divergence, and the target of irradiation is far away more, and the diameter of laser facula is just big more on the target, and the size that the related algorithm by Digital Image Processing calculates picture point just can be determined the distance between barrier and the camera.By many experimental verifications, obtain quantitative relationship between laser facula size L and the tested distance D by the curve match, for: D=-0.0003L
2+ 1.0526L+48.0378.Draw from experiment, suitable detection range is 15cm≤D≤1000cm.
Utilize the shooting range measurement principle, in the control module of air processor, preestablish a distance value, such as 25cm.When the distance value of being measured by the camera sensing during greater than this preset distance value, control module control lifting unit 302 continues to rise.Otherwise when the distance value of measuring when the camera sensing was less than or equal to this preset distance value, control module control elevating mechanism kept Present Attitude or decline.
As shown in Figure 5, detect principle schematic for sensor unit embodiment three described in the utility model; Described sensor unit comprises conductive fabric 3036, a plurality of conducting probe 3037 and sensing circuit (not shown), one end of described a plurality of conducting probe 3037 vertically is arranged at air conditioner unit 301 upper surfaces, and be connected with sensing circuit respectively, described conductive fabric 3036 is arranged at described conducting probe 3037 tops by the support (not shown), has the gap with the end of described conducting probe 3037, and, the conducting surface of described conductive fabric 3036 is towards described conducting probe, and non-conductive towards the outside.Conductive fabric self keeps certain force of strain and elastic force, such as polyester fiber, when object touches described conductive fabric 3036, the described conductive fabric that touches a little caves inward, when reaching some positions, can contact with described conducting probe 3037, sensing circuit just had signal and sent to control module this moment.Control module receives signal, and the control lifting unit descends, and is separated until conductive fabric 3036 and conducting probe 3037.
In this embodiment, various elements described in Fig. 5 can be made a sensor device, promptly in a housing, by the housings support conductive fabric, a plurality of conducting probes and sensing circuit are placed in the housing, by the holding wire that is connected with sensing circuit with this sensor arrangement senses to signal send.At this moment, can on the top end face of air conditioner unit 301, be fixedly connected with a plurality of such sensor devices, with the barrier above more comprehensively sensing comes from.This sensor is evenly distributed on the top end face of air conditioner unit.
Another kind of embodiment is, conductive fabric is fixed on the peripheral profile housing of top end face of air conditioner unit 301, is about to conductive fabric and covers on the whole top end face of air conditioner unit 301, can reach better effect like this.
In addition, similar with previous embodiment, also can change the conducting probe in the previous embodiment into conductive fabric, two-layer conductive fabric is arranged at the air conditioner unit upper surface by a support gap, two-layer conductive fabric is the one side conduction in opposite directions, opposing one side is non-conductive, and described two-layer conductive fabric is connected with described sensing circuit respectively.When barrier touches conductive fabric, because conductive fabric has flexibility and elasticity, self keeps certain force of strain and elastic force, the described conductive fabric that touches a little caves inward, when reaching some positions, can contact with another layer conductive fabric, sensing circuit just had signal and sent to control module this moment.
As shown in Figure 6, detect principle schematic for sensor unit embodiment four described in the utility model; Sensor unit comprises housing 3038 and is positioned at the microswitch 3039 of described housing, feeler lever 3040 and resetting means.In the present embodiment, resetting means is a spring 3041, and an end of described feeler lever 3040 is connected with the swing arm of described microswitch 3039, and described resetting means is located on the described feeler lever.Under original state, described feeler lever 3040 only contacts with the swing arm of microswitch 3039, in the swing arm of this microswitch 3039 without any stressed.But, when air cleaning member 301 when the drive of lifting unit 302 is risen, in case the top of feeler lever 3040 touches barrier, and barrier is conflicted the power on feeler lever 3040 tops when being enough to overcome spring force, feeler lever 3040 moves downward with respect to air cleaning member 301 upper surfaces, so that the bottom of feeler lever 3040 applies downward power to the swing arm of microswitch, trigger microswitch work thus.When control module received the signal of microswitch transmission, control lifting unit 302 descended, and does not work until microswitch.Eliminate when the pressure that described feeler lever 3040 is subjected to, by described spring 3041 described feeler lever 3040 is resetted, thereby microswitch is resetted.
In the preferred version,, a plurality of sensor units can be set, sensor unit be evenly distributed on the top end face of described air conditioner unit at the upper surface of air cleaning unit for making the information that is detected more accurate.
In addition, described sensor unit can also be arranged at the plate structure of hitting of air conditioner unit excircle for floating, and it is a crash sensor.Described crash sensor can sense upper and lower to collision.Described crash sensor comprises loam cake, bottom and hits plate mechanism, in hitting plate mechanism, be provided with upper sensor and lower sensor, when top cover since the collision of barrier when hitting plate mechanism and produce relative displacement, top cover can touch and be positioned at the upper sensor that hits in the plate mechanism, thereby triggers upper sensor; When bottom since the collision of barrier when hitting plate mechanism and produce relative displacement, bottom can touch and be positioned at the lower sensor that hits in the plate mechanism, thereby triggers lower sensor.No matter trigger which sensor, control module receives this triggering signal.
The concrete plate that hits of above-below direction of how realizing is surveyed, and will do following introduction:
Crash sensor comprises: loam cake, hit board mount, bottom and microswitch.
Four guide pillars are arranged on the bottom, and accordingly, hitting has four through holes on the board mount, after four guide pillars pass four through holes, stretches out the guide pillar that hits board mount and partly goes up sheathed upper spring respectively.Be respectively equipped with two microswitches in the and arranged on left and right sides of hitting on the upper surface of board mount.In the preferred version, these two microswitches are arranged to axial line and are and are symmetrical arranged.
Hit board mount above be provided with loam cake, the lower surface of this loam cake, promptly with hit the one side that the board mount upper surface is faced mutually, also be provided with four guide pillars on it, these four guide pillar positions are corresponding with four through hole positions on hitting board mount, so that four guide pillars on the bottom are after hit through hole on the board mount and stretch out, sheathed good spring on the part that the bottom guide pillar stretches out, again will on four guide pillars covering correspondingly be connected with this spring.At this moment, the guide pillar on the bottom and on the guide column sleeve that covers be located on the same spring, but the guide pillar of the guide pillar of bottom and loam cake maintains a certain distance between the two, so that loam cake is suspended in the top of hitting board mount at this moment.
When air cleaning member raise, in the process that raises, the loam cake that is positioned at the air cleaning member top was run into barrier, after loam cake is stressed, can move down along the vertical direction of guide pillar.When loam cake moved downward, the lower surface of loam cake (promptly towards the one side of hitting the board mount upper surface) was conflicted to and is positioned at the upper surface that hits board mount, triggered thus to be positioned at the microswitch that hits on the board mount upper surface.After control module received this switching signal, the control air cleaning member no longer raise.
When loam cake is no longer stressed, owing to, make loam cake be returned to the origin-location again in the loam cake and the restoring force effect of hitting spring between the board mount.The lower surface of loam cake no longer compresses and is positioned at the microswitch that hits on the board mount, and control module does not receive the signal of this switch.
Fig. 7 a-7b is the structural representation of air processor embodiment two described in the utility model; (two main bodys) in the present embodiment, described air processor is portable, particularly, comprises main body 401 and time main body 402, is provided with air conditioner unit 403 in last main body 401 inside, as the funtion part of air processor.In the following main body 402 of air processor, also include mobile unit 404, realize air processor moving certainly on ground by this mobile unit 404.Mobile unit 404 is connected with described control module (figure does not show), and mobile unit 404 moves according to the control instruction of described control module.
Shown in Fig. 7 b, between last main body 401 and following main body 402, be connected with lifting unit 405, the free end of described lifting unit 405 is connected with the described air cleaning member of going up in the main body 403, drive the lifting of described lifting unit 405 by described control module (figure does not show), thereby change the height of described air cleaning member 403.In the present embodiment, described lifting unit 405 is a fold mechanism, its collapsible taking in the recessed receiving space of putting in described main body down.
Consider from security standpoint, in order to prevent that lifting unit 405 from causing the safety problem of classes such as tong in the oscilaltion process, the utility model also is provided with protective cover in the periphery of lifting unit, as shown in Figure 9, is the structural representation of air processor embodiment three described in the utility model.Periphery at lifting unit 405 also is provided with protective cover 505, and protective cover 505 is extension types, stretches along with the elevating movement of lifting unit 405.
As shown in Figure 8, main body 502 was connected under the two ends up and down of protective cover 505 reached respectively at air cleaning member 503, and it is multiple that ways of connecting can be, and can also can be modes such as detachable such as bayonet type, card slot type or screw for the disposable connection of viscose connection.Adopting detachable benefit is easy replacement, is convenient to cleaning.Shown in Fig. 9 a, 9b, be respectively the opening of protective cover embodiment one among the embodiment three of air processor in the utility model, structural representation when shrinking, described protective cover is interlocked step by step by many groups tube and forms.
Shown in Figure 10 a-10b and Figure 10 c-10d, be respectively the structural representation of protective cover embodiment two when opening and shrink two states among the embodiment three of air processor in the utility model, described protective cover is a folding tube.
Figure 11 is the structural representation of the protective cover embodiment three among the embodiment three of air processor in the utility model.Described protective cover comprises cover body 505a and spool 505b, and the end of described cover body 505a is to be fixed on the air cleaning member 503 of described upward main body, and the other end is fixed on the described spool 505b, and described spool 505b is fixed on described going up on the main body.On described spool 505b, be provided with the wind spring (not shown), when cover body 505a is wound on the described spool 505b fully, wind spring is in initial state, promptly do not stress, as cover body 505a during by described air cleaning member pull-up, wind spring is stressed, and cover body 505a is drawn manyly more, stressed big more, elastic deformation is big more; When described air cleaning member descended, cover body 505a was subjected to the elastically-deformable restoring force of wind spring, cover body 505a was shunk be wound up into spool 505b.
Certainly, also the end of cover body 505a can be fixed on the described main body, the other end is fixed on the described spool 505b, and this spool is fixed on the described air cleaning member 503, is provided with wind spring on described spool.The operation principle of relevant this protective cover is identical as mentioned, does not repeat them here.
In the embodiment two and three of described air processor, various sensor units described in the same suitable embodiment one, in addition, for the ease of the portable air treating apparatus in traveling process, detect to fast limit and have or not coherent signal, sensor such as infrared, laser, ultrasonic, light can be arranged on the upper surface of representing the air cleaning unit direction of advance.After detecting barrier, except can driving lifting unit decline, can also control mobile unit and realize evading action such as retreat, turning etc., this moment, lifting unit can keep present level, in case evade successfully, elevating mechanism rises again.
In the above-described embodiments, described air conditioner unit can be air cleaning member or air wetting/Dehumidifying element.
It should be noted that at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model.Although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that, still can make amendment and be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.