JP2004188216A - Vacuum cleaner and cleaning attachment used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner which prevents the faults caused by condensation etc. of sucked vapor reaching a negative pressure generation part from occurring and improves durability, and a cleaning attachment which can be use for the suction type cleaning device. <P>SOLUTION: A first cyclone 60 has a function to preliminarily separate mainly air, vapor, soiled water, and dirt sucked through a suction port 31 for vapor into air and other substances by centrifugal separation. A second cyclone 70 is placed at the downstream of the first cyclone 60 and has functions to condense vapor not preliminarily centrifugally separated and sucked and to further centrifugally separate air, vapor, coiled water, and dirt sucked through a suction passage 32S into air and other substances. A Peltier type pump 80 has a function to use the Peltier effect to cool/condense vapor to be sucked without being centrifugally separated and to heat/dry remained vapor after the cooling/condensing. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a suction-type cleaning device that removes dirt by sucking jet steam, and more particularly, to a suction-type cleaning device that removes dry or wet dirt by selectively sucking steam and dry air. The present invention also relates to a cleaning attachment used for such a suction-type cleaning device.

  In order to remove stubborn dirt such as dirt stuck on the road surface, building floor, wall surface, glass surface, etc., and oil stains scorched on cooking utensils, suction type cleaning devices that can spray steam are used. . In such a cleaning device, the dirt is softened by jetting steam, and the dirt in a wet state can be sucked and removed (wet cleaning), thereby improving the efficiency of the cleaning operation. However, when the dirt in a dry state is sucked and removed ( It is necessary to consider the proper use of dry cleaning). Therefore, for example, in a canister-type suction-type cleaning device, a technique is known in which a roller-type wipe is provided near a steam injection nozzle to suck steam (see Patent Document 1). Further, in a suction-type cleaning device of a type that centrally manages cleaning of a building, a group of buildings, a region, and the like using a negative pressure generating unit (blower) disposed in one place, a wet cleaning unit and a dry cleaning unit are used. A technique to be provided is known (see Patent Document 2).

Japanese Patent No. 2637060 Japanese Utility Model Publication No. 5-70443

  However, in a type in which water is absorbed by a roller-type rag as disclosed in Patent Document 1, steam and water cannot be sufficiently absorbed by the roller-type rag, and the moisture is sucked from a suction port of dry air, and a negative pressure generating portion It may reach the blower and its drive motor. For this reason, a failure or the like of the negative pressure generating unit is likely to occur, and the durability (life) of the suction-type cleaning device becomes a problem. These moistures can be collected to some extent by a filter installed in the vapor suction channel to capture floating dust and the like, but if the number of installed filters is increased in order to prevent the filter from reaching the negative pressure generating section. In addition, the suction performance of the negative pressure generating section may suddenly decrease, and the maintenance burden required for filter replacement also increases. On the other hand, when separate units for the wet type and the dry type are separately provided in advance as shown in Patent Document 2, it is difficult for the negative pressure generating unit to fail, etc., but the structure becomes large and complicated, and the cost increases. Invite you.

  An object of the present invention is to improve the durability by preventing a failure or the like from occurring due to condensation of the suction vapor reaching the negative pressure generating section or the like without increasing the size and complexity of the apparatus or increasing the maintenance burden. An object of the present invention is to provide a suction-type cleaning device that can be achieved, and a cleaning attachment that can be used in such a suction-type cleaning device.

Means for Solving the Problems and Effects of the Invention

The first of the suction-type cleaning devices according to the present invention to solve the above-described problems,
A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
The steam suction channel for steam has an electronic cooling / heating unit for cooling / condensing the sucked steam using the Peltier effect and heating / drying the remaining steam after the cooling / condensation. It is characterized by.

Further, in order to solve the above problems, the second of the suction type cleaning device according to the present invention,
A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
In the vapor suction channel,
A centrifugal separator for condensing the sucked steam and centrifuging the sucked air, steam, sewage and dirt into air and other things;
It is located on the downstream side of the suction flow path with respect to the centrifugal separation unit, and uses the Peltier effect to cool and condense the vapor sucked without centrifugation and heat the remaining vapor after the cooling and condensation. An electronic cooling / heating unit for drying;
It is characterized by having.

Furthermore, the third of the suction-type cleaning device according to the present invention for solving the above-mentioned problems,
A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
In the vapor suction channel,
A centrifugal separator for condensing the sucked steam and centrifuging the sucked air, steam, sewage and dirt into air and other things;
Electrons that are arranged inside the centrifugal separation unit to cool and condense the steam that is to be drawn in without being centrifuged using the Peltier effect, and to heat and dry the remaining steam after the cooling and condensing. Cooling / heating unit,
It is characterized by having.

Then, in order to solve the above-mentioned problem, the fourth of the suction-type cleaning device according to the present invention is:
A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
In the vapor suction channel,
Mainly a pre-centrifugal separator for pre-centrifuging the air and other things mainly from the sucked air, steam, sewage and dirt,
It is located downstream of the suction flow path with respect to the preliminary centrifugal separation section, condenses the vapor that has been suctioned without preliminary centrifugation, and extracts air and other substances from the sucked air, steam, sewage, and dirt. And a centrifugal separation unit for further centrifugation,
Electrons that are arranged inside the centrifugal separation unit to cool and condense the steam that is to be drawn in without being centrifuged using the Peltier effect, and to heat and dry the remaining steam after the cooling and condensing. Cooling / heating unit,
It is characterized by having.

  According to these suction-type cleaning devices, the suctioned steam is cooled and condensed by incorporating an electronic cooling / heating unit such as a Peltier element (also referred to as an electronic cooling element) in the middle of the steam suction flow path. At the same time, it becomes easy to heat and dry the residual steam after cooling and condensation. Accordingly, it is possible to prevent the suction steam from reaching the negative pressure generating section including the suction source such as the fan, the blower, the compressor, and the driving source such as the electric motor, thereby preventing a failure or the like from occurring. Performance can be improved.

  At that time, an electronic cooling / heating unit may be located downstream of the suction flow path of the centrifugal separation unit or preliminary centrifugal separation unit composed of cyclones or the like, or an electronic cooling / heating unit may be placed inside the centrifugal separation unit. When doing so, a part of the sucked steam is condensed in the centrifugal separation unit, and the air and other things are partially centrifuged from the sucked air, steam, sewage, and dirt. Therefore, cooling / condensing and heating / drying in the electronic cooling / heating unit are performed more reliably. As described above, it is not always easy to centrifuge the steam, but the use of the steam in combination with the Peltier effect improves the handleability of the steam.

  In the third or fourth suction-type cleaning device, when the centrifugal separation unit is configured by a cyclone, the Peltier element embedded in the inner cylinder wall of the cyclone and the outer part where the outer cylinder wall is located from the inner cylinder wall. By integrating the heat absorbing fins protruding toward the inner side and the heat generating fins protruding from the inner cylinder wall toward the inner side where the axis is located, the electronic cooling / heating unit is formed inside the cyclone. Can be incorporated into As is well known, in a Peltier device (electro-cooling device), when a current flows through a junction between two dissimilar metals, heat is absorbed at one junction and heat is absorbed at the other junction. appear. Therefore, by simply installing heat absorbing fins with one joint side outside the inner cylinder wall and attaching heat generating fins with the other joint side inside the inner cylinder wall, the electronic cooling / heating unit can be simply incorporated inside the cyclone. Can be. Moreover, the condensing action of the suctioned steam in the cyclone and the centrifugal action of the suction air, etc., and the cooling / condensing action of the suctioned steam and the heating / drying action of the remaining steam in the electronic cooling / heating unit do not hinder each other. Since the vaporization proceeds simultaneously and in parallel, the condensation of the suction vapor is actively performed in the cyclone, and the suction vapor does not easily reach the negative pressure generating section.

  If such heat absorbing fins are continuously formed in a spiral shape along the flow direction of the steam to be centrifuged, and the steam is cooled and condensed by depriving the contacting steam of the heat of condensation, the heat absorbing fins in the cyclone Does not impede steam flow. Therefore, the separating action (the action of centrifuging the sucked air, steam, sewage, and dirt into air and other substances) in the cyclone is promoted, and the performance of separating and removing floating dust and the like is also improved. In this case, if the heat absorbing fins have a double spiral structure with different protrusion heights from the inner cylinder wall, the spiral leads will be larger than the pitch, and the lower spirals will accommodate floating dust and the like. Since a large pocket space is formed, floating dust and the like are easily discharged, and clogging hardly occurs.

  Similarly, when the heating fins are continuously formed in a spiral shape along the flow direction of the remaining steam after cooling and condensation, and the steam is dried by heating the contacting steam, the heating fins remove the remaining steam. The steam is smoothly discharged from the inner cylinder of the cyclone while drying, so that the steam hardly reaches the negative pressure generating portion. Furthermore, by forming a radiation fin for releasing the heat inside the cyclone to the outside on the outer surface of the outer cylinder wall of the cyclone, the cooling function of the heat absorption fin can be further improved, and the radiation fin is formed of the cyclone. Also serves as reinforcement ribs. The radiation fins may be ring-shaped (annular) or spiral.

  Also, for example, when the use of the steam suction unit is selected by a switch operation, if the suction port for the dry air is closed, the inflow of the suction steam and the wet dirt into the suction unit for the dry air is prevented. In addition, clogging of floating dust and the like in the suction part for dry air hardly occurs.

Next, in order to solve the above problems, the cleaning attachment used in the suction-type cleaning device described above,
At least a dry air suction portion and a steam suction portion have a tubular main body formed therein,
The tubular main body is detachably attached to the negative pressure generating unit and directly or indirectly attached via another member to constitute a suction-type cleaning device.

  Even when the cleaning device is used as a cleaning attachment, it is possible to prevent the suction steam from reaching the negative pressure generating portion (the suction device and the driving source) and to cause a failure or the like, thereby improving the durability of the cleaning device.

  In such a cleaning attachment, a detecting means is provided on one of the cylindrical main body side and the negative pressure generating side for detecting that these are in a predetermined positional relationship corresponding to the cleaning standby posture. On the other hand, a steam generator for heating the purified water and generating steam for cleaning is attached to the cylindrical main body, and when the detecting unit detects the cleaning standby posture, the steam generator prepares for steam generation. Can be made possible. As the cleaning attachment is positioned with respect to the negative pressure generating portion of the cylindrical main body, and steam preparation is performed after the wet cleaning is ready, the cleaning steam is suddenly discharged from the cylindrical main body (steam generating unit). Discharge is prevented.

  Further, on either one of the cylindrical body portion side and the negative pressure generating portion side, a detection unit for detecting that these are in a predetermined positional relationship corresponding to the cleaning standby posture is provided. A steam generator that heats purified water and generates steam for cleaning is attached to the tubular body, and the steam suction channel for the tubular body is cooled and condensed by an electronic cooling and heating unit. A sewage storage unit for storing sewage is installed.For example, when the use of a suction flow path for steam is selected by a switch operation, regardless of whether or not the detection unit detects the cleaning standby posture, the sewage storage unit The unit is shut off from the steam suction flow path, and when the detection unit detects the cleaning standby posture, the steam generation unit can be ready for steam generation. Regardless of whether the cylindrical body is positioned relative to the negative pressure generating part as a cleaning attachment, if wet cleaning (steam cleaning) is not in place, the sewage storage unit is shut off from the steam suction channel. Therefore, re-contamination due to sewage leakage (backflow) from the sewage storage unit is prevented.

  By the way, in the cylindrical main body, the suction flow path of the suction section for steam and the suction flow path of the suction section for dry air are sectioned, and the cross-sectional area of the suction flow path for steam is changed to the suction flow path for dry air. It may be formed larger than the cross-sectional area of the road. By forming the sections of the two suction channels, it is possible to prevent moisture such as suction steam and water from entering the suction channel for dry air. In addition, by increasing the cross-sectional area of the vapor suction channel, even if the suction performance of the negative pressure generating unit is reduced by arranging an electronic cooling / heating unit, etc., in the suction channel, floating dust and the like can be prevented. Hardly cause clogging. Further, the cylindrical main body has a suction flow path of a suction section for steam, a suction flow path of a suction section for dry air, and a discharge flow path for steam for discharging steam generated in the steam generation section. A section may be formed. Thus, the discharge flow path for steam can be compactly incorporated in the empty space of both suction flow paths.

  An axial fan for introducing the sucked steam into the electronic cooling / heating unit can be arranged in the steam suction flow path of the tubular main body. Even if the suction performance of the negative pressure generation part is reduced by arranging the electronic cooling / heating part etc. in the suction flow path by arranging the axial flow fan in the suction path for steam, clogging of floating dust etc. Is less likely to occur.

By the way, in order to solve the above-mentioned problems, the suction-type cleaning device of the present invention is
A suction type cleaning device for suctioning and removing wet stains, wherein a steam suction unit including a steam suction port and a suction flow path is connected to the negative pressure generation unit, and
The steam suction channel for steam has an electronic cooling / heating unit for cooling / condensing the sucked steam using the Peltier effect and heating / drying the remaining steam after the cooling / condensation. In some cases.

  Thus, even in a cleaning device (also referred to as a steam cleaner) dedicated to steam injection / suction, it is possible to prevent the suction steam from reaching the negative pressure generating section (suction machine and drive source) to cause a failure or the like, and to perform cleaning. The durability of the device can be improved.

  The “purified water” used in the suction-type cleaning device or the cleaning attachment of the present invention is a cleaning solution (for example, soap water or strong alkaline disinfecting water) obtained by mixing a predetermined ratio of a detergent, a cleaning liquid, and the like in addition to 100% of cleaning water. It may be.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Example 1)
FIG. 1 is a front view showing an example of the suction-type cleaning device according to the present invention. The suction-type cleaning device (hereinafter, also referred to as a cleaning device) 100 is configured such that a canister-type device main body 1 located at a rear side and a cleaning attachment 2 located at a front side are respectively attached and detached by a connecting hose 3 located therebetween. Connected and connected as possible. The apparatus main body 1 has a dust collecting portion 10 including a dust collecting filter and a dust collecting bag for collecting dry dust arriving from the front via the connecting hose 3, and generates a negative pressure required for a dust absorbing action. A negative pressure generator 20 including a suction fan 21 (suction unit) and a fan driving motor 22 (suction unit driving means) for performing the operation is provided. The dry air sucked by the suction fan 21 is discharged to the outside from an exhaust port 23 at the rear of the apparatus main body 1. Further, the fan driving motor 22 operates based on a control signal output from a control unit 500 described later.

  The main body of the cleaning attachment 2 is a long cylindrical main body 30 made of a hard synthetic resin in which a suction part 30A for dry air located at the upper part and a suction part 30S for steam located at the lower part are defined inside. The cylindrical main body 30 is divided into a plurality of parts (for example, four parts) in the longitudinal direction and connected by joints. The dry air suction section 30A includes a dry air suction port 31A formed at the front end and a subsequent dry air suction flow path 32A, while the steam suction section 30S includes a steam formed at the front end. And a suction channel 32S for steam that follows the suction port 31S. The suction section 30A for dry air and the suction section 30S for steam are selectively connected to the dust collecting section 10 and the negative pressure generating section 20 of the apparatus main body 1 in conjunction with a changeover switch operation or the like. Has become. Therefore, when the dry air suction section 30A is communicated with the negative pressure generation section 20, the dry air suction section 30S is connected to the negative pressure generation section 20 as a dry vacuum cleaner for sucking / removing dry dirt. Then, it becomes a wet vacuum cleaner for sucking and removing wet stains.

  A steam generator 40 for heating purified water to generate steam is attached to a front portion of the cylindrical main body 30, and a distal end of the cylindrical main body 30 includes a steam injection nozzle 51 (steam injection means). The cleaning unit 50 is connected. A hand operation handle 39 is formed at the rear end of the tubular main body 30. The hand operation handle 39 has an operation unit 300 such as an operation switch and a control unit 500 for controlling the operation of the cleaning device 100. are doing.

  The first cyclone 60 (preliminary centrifugal separator), the second cyclone 70 (centrifugal separator), and the Peltier heat pump 80 (from the upper side of the channel) are provided in the vapor suction flow path 32S (steam suction part 30S). Electronic cooling / heating unit). The first cyclone 60 is substantially entirely made of copper or aluminum, and mainly has a function of preliminarily centrifuging air, steam, sewage, and dirt drawn from the steam suction port 31S into air and other substances. Have. The second cyclone 70 is substantially entirely made of copper or aluminum, is disposed downstream of the first cyclone 60, condenses the vapor that has been sucked without being preliminarily centrifuged in the first cyclone 60, and has a suction channel 32S. It has the function of further centrifuging air and other substances from air, steam, sewage and dirt sucked from the air. The Peltier heat pump 80 is disposed inside the second cyclone 70, cools and condenses the steam that is to be sucked without being centrifuged by using the Peltier effect, and removes the remaining steam after the cooling and condensation. It has the function of heating and drying. In addition, in the suction flow path 32S between the first cyclone 60 and the second cyclone 70, in order to compensate for a decrease in the suction capacity of the suction fan 21 due to the installation of the cyclones 60 and 70, the Peltier heat pump 80, and the like. , An axial fan (and its driving motor) 90 are built in.

As shown in FIG. 2A in an enlarged manner, the steam generating section 40 has the following structure normally provided in a steam injection type cleaning device.
A transparent resin water purification tank 41 (purified water storage means) for storing purified water to be used for cleaning;
A pump 42 for pumping purified water from a purified water tank 41;
A pump driving motor 43 (pump driving means);
A heater 44 for heating purified water pumped by the pump 42 to generate steam;
An accumulator (pressure accumulating means) 45 for maintaining the generated vapor at a predetermined vapor pressure;
A relief valve 46 (open / close valve) for supplying the steam in the accumulator 45 to the steam injection nozzle 51 via the steam discharge pipe 47.
The pump driving motor 43, the heater 44, and the relief valve 46 operate based on control signals output from the control unit 500, respectively.

  The cleaning unit 50 is divided into a dry cleaning room 50A straddling the front and rear part and a wet cleaning room 50S in the center, and the dry cleaning room 50A communicates with the dry air suction unit 30A via the dry air suction port 31A. The wet cleaning chamber 50S communicates with the steam suction section 30S via the steam suction port 31S. The dry cleaning chamber 50A is provided with a pair of rotating rollers 50a1 and 50a2 with the wet cleaning chamber 50S interposed therebetween for scraping dry dirt, scooping the dirt, and feeding the dirt into the suction port 31A. Of these, the front rotating roller 50a1 contacts the surface to be cleaned S and then rotates rearward (counterclockwise in FIG. 2A). The rear rotating roller 50a2 rotates in the opposite direction to the rotating roller 50a1, that is, rotates toward the front side (clockwise in FIG. 2A) after coming into contact with the surface S to be cleaned. The wet cleaning chamber 50S is provided with a pair of rotating rollers 50s1 and 50s2 for scraping wet dirt, scooping the dirt, and feeding the dirt into the suction port 31S. The front rotation roller 50s1 contacts the surface S to be cleaned and then rotates rearward (counterclockwise in FIG. 2A). The rear rotating roller 50s2 rotates in the opposite direction to the rotating roller 50s1, that is, rotates forward (clockwise in FIG. 2A) after coming into contact with the surface S to be cleaned.

  These rotating rollers 50a1, 50a2, 50s1, and 50s2 are all driven and rotated by a cleaning motor 52 (scraping drive means) about a horizontal axis in a direction substantially orthogonal to the moving direction (front-back direction). You. The cleaning motor 52 operates based on a control signal output from the control unit 500. At this time, the rotation speed of the rotation rollers 50a1 and 50s1 having the forward rotation with respect to the traveling direction (front side) is assumed to be higher than the rotation speed of the rotation rollers 50a2 and 50s2 having the reverse rotation, and The moving operation of the unit 30 can be easily performed. The steam injection nozzle 51 is open between the pair of rotating rollers 50s1 and 50s2.

  As shown in FIGS. 2 (b) and 2 (c), a circular pipe 32b constituting a suction passage 32S for steam and a suction passage 32A for dry air are provided inside an elliptical pipe 30a constituting a cylindrical main body 30. Is press-fitted, and each pipe is pressure-bonded (or bonded using an adhesive or the like) at each contact point. In addition, a pair of steam discharge pipes 47, 47 shown in FIG. 2B uses an adhesive or the like on the outer surface of the elliptical pipe 30a in order to discharge the steam generated by the steam generation unit 40 to the steam injection nozzle 51. Adhered and fixed. Thereby, the suction flow path 32S of the suction part 30S for steam, the suction flow path 32A of the suction part 30A for dry air, and the discharge flow path 32E for steam are formed in the cylindrical main body 30 in a partitioned manner. In order to prevent clogging caused by a decrease in the suction capacity of the suction fan 21 due to the installation of the cyclones 60 and 70 and the Peltier heat pump 80, etc., the cross-sectional area of the steam suction flow path 32S (the pipe 32b The inner diameter is formed larger than the cross-sectional area of the suction passage 32A for dry air (the inner diameter of the pipe 32a).

  The internal space of the pipe 30a excluding the suction passages 32A and 32S includes a power line from the power supply 24 (see FIG. 1) to each drive unit, and a signal line from each sensor unit to the control unit 500 (see FIG. 1). , Are used as a wire passage 32W for passing a signal line or the like from the control unit 500 to each drive unit. Further, the discharge passage 32E for steam may be housed inside the pipe 30a.

  FIG. 2D shows an example of the arrangement of operation switches and the like provided on the operation unit 300 of the hand operation handle 39. The operation unit 300 includes a main switch 301 for inputting a main power, a steam switch 302 and a dry switch 303 for selectively inputting a steam cleaning operation (wet cleaning operation) and a dry cleaning operation, Are provided with a cleaning steam switch 304, a test steam switch 305, and the like for selectively inputting a cleaning jet and a test jet. The operation unit 300 is also provided with a display area 310 for displaying, on a liquid crystal or the like, an operation procedure of these switches, an operation state of the cleaning device 100, and notes on failure, malfunction, periodic inspection, periodic replacement, and the like. I have. Of course, the operation may be input by using the switches 301 to 305 sequentially displayed in the display area 310.

  As shown in FIG. 3, the first cyclone 60 includes a cylindrical outer cylinder wall 61, a cylindrical inner cylinder wall 62, and a first check valve 63 (outflow prevention means). The outer cylinder wall 61 has a communication port 61a that communicates with the suction flow path 32S on the suction port 31S side, and upper and lower openings 61b and 61c. The inner cylinder wall 62 has a communication port 62a communicating with the suction flow path 32S on the negative pressure generating section 20 side and an opening 62b formed at the lower end, and is inserted from the upper opening 61b of the outer cylinder wall 61. It is fixed to the outer cylinder wall 61 at the upper opening 61b. The first check valve 63 includes a disc-shaped valve portion 63a capable of closing the lower opening 61c of the outer cylinder wall 61 from the outside (from below), and a bottom of the outer cylinder wall 61 extending upward from the center of the valve portion 63a. A shaft portion 63b penetrating the center of the wall and having a distal end (upper end) facing the opening 62b of the inner cylindrical wall 62 is provided.

  Air, steam, sewage (water droplets), softened and removed dirt, etc. flowing between the outer cylinder wall 61 and the inner cylinder wall 62 from the communication port 61 a by the suction action of the suction fan 21 are removed from the inner periphery of the outer cylinder wall 61. It whirls down (whirls down) along a surface, during which time it is centrifuged into air and others. At this time, the steam that has come into contact with the inner peripheral surface of the outer cylinder wall 61 is deprived of heat by the wall surface, and a part of the vapor is condensed (liquefied, water-dropped). The air (and a part of the steam) and the like pass through the communication port 62a from the opening 62b of the inner cylinder wall 62 and reach the suction flow path 32S on the negative pressure generating unit 20 side.

  Sewage (water droplets), dirt, and the like, which are centrifuged and dropped in the first cyclone 60, are received by a first sewage tank 64 (sewage storage section) disposed below the first cyclone 60. The first sewage tank 64 is formed integrally with the outer cylinder wall 61 by screwing a screw portion 64m formed on an upper inner peripheral surface thereof with a male screw portion 61m formed on a lower outer peripheral surface of the outer cylinder wall 61. It is attached detachably. A first solenoid 65 is fixed to a central bottom of the first sewage tank 64, and a plunger 65 a of the first solenoid 65 is fixed to the first check valve 63. 65b is a return spring for projecting the plunger 65a upward when the first solenoid 65 is de-energized (demagnetized), and 63c is a compression coil spring for urging the first check valve 63 upward (in the closing direction). (Biasing means).

  Therefore, when the first solenoid 65 is excited based on a control signal output from the control unit 500, the plunger 65a of the first solenoid 65 is retracted against the spring force of the return spring 65b and the compression coil spring 63c ( The first check valve 63 opens the lower opening 61c of the outer cylinder wall 61. As a result, sewage (water droplets), dirt, and the like, which are centrifuged and dropped in the first cyclone 60, are collected in the sewage tank 64 from the lower opening 61c. At this time, a part of the steam sucked from the communication port 61a is condensed on the inner peripheral surface of the outer cylinder wall 61 and is recovered from the lower opening 61c to the first sewage tank 64.

  On the other hand, when the first solenoid 65 is demagnetized (de-energized), the plunger 65a of the first solenoid 65 projects (rises) due to the spring force of the return spring 65b and the compression coil spring 63c, and the first check valve 63 closes the lower opening 61 c of the outer cylinder wall 61. Thereby, the sewage in the first sewage tank 64 is prevented from flowing back to the suction port 31S side or the negative pressure generating unit 20 side, and leakage of sewage during transportation or the like can be prevented. Therefore, when the suction fan 21 is not rotating (when the negative pressure generating unit 20 is not operating; when the first solenoid 65 is OFF), the first cyclone 60 is shut off from the first sewage tank 64.

  An annular or spiral radiating fin 61d may be formed on the outer surface of the outer cylinder wall 61 by integral molding or welding to release the heat inside the first cyclone 60 to the outside. If the heat radiation fin 61d is made of a copper or aluminum material having a high heat radiation effect, the condensation of the vapor inside the first cyclone 60 is promoted, and the heat radiation fin 61d also serves as a reinforcing rib of the first cyclone 60. In addition, one or more (for example, four at equal intervals in the circumferential direction) steam outlets 61e are provided on the top wall of the outer cylinder wall 61. Based on the operation of the test steam switch 305 (see FIG. 2D), the steam guided from the discharge passage 32E (the steam discharge pipes 47, 47, etc.) is supplied between the outer cylinder wall 61 and the inner cylinder wall 62. The inner peripheral surface of the outer cylinder wall 61 is cleaned by jetting.

  As shown in FIGS. 4 and 5, the second cyclone 70 is formed to be slightly smaller than the above-described first cyclone 60, and similarly to the first cyclone 60, a cylindrical outer cylinder wall 71 and a cylindrical inner cylinder wall 71 are formed. A cylinder wall 72 and a second check valve 73 (outflow prevention means) are provided. The outer cylinder wall 71 has a communication port 71a communicating with the suction channel 32S on the suction port 31S side, and upper and lower openings 71b and 71c. In order to release the heat inside the second cyclone 70 to the outside, an annular or spiral radiating fin 71d is formed on the outer surface of the outer cylinder wall 71 by integral molding or welding. Since the radiation fins 71d are also made of a copper or aluminum material, the radiation effect is high, and the condensation (liquefaction, water dropletization) of the vapor inside the second cyclone 70 is promoted. The inner cylinder wall 72 has a communication port 72a communicating with the suction flow path 32S on the side of the negative pressure generating section 20 and an opening 72b formed at the lower end, and is inserted from the upper opening 71b of the outer cylinder wall 71. The upper opening 71b is fixed to the outer cylinder wall 71. The second check valve 73 includes a disc-shaped valve portion 73a capable of closing the lower opening 71c of the outer cylinder wall 71 from the outside (lower side), and a bottom of the outer cylinder wall 71 extending upward from the center of the valve portion 73a. A shaft portion 73b penetrating the center of the wall and having a front end (upper end) facing the opening 72b of the inner cylindrical wall 72 is provided.

  Further, a Peltier heat pump 80 is disposed inside the second cyclone 70. Specifically, as shown in FIG. 5 (b), a P-type semiconductor and an N-type semiconductor are provided on a metal intermediate electrode on an inner cylindrical wall 72 having a cylindrical double structure of an inner wall 72c and an outer wall 72d. The Peltier element 81 connected by is sandwiched and buried. At this time, when the positive electrode-N-type semiconductor-intermediate electrode-P-type semiconductor-intermediate electrode-... -P-type semiconductor-negative electrode is connected and energized, the outer wall 72d side is a heat absorbing (cooling) source, and the inner wall 72c side. The heat pump action which uses as a heat source (heat source) occurs. Therefore, the heat absorbing fins 82 are formed so as to protrude from the outer wall portion 72d of the inner cylinder wall 72 toward the outer side where the outer cylinder wall 71 is located, and to extend from the inner wall portion 72c of the inner cylinder wall 72 toward the inner side where the axis is located. When the heat generating fins 83 are formed so as to protrude, a Peltier heat pump 80 in which the heat absorbing fins 82, the heat generating fins 83, and the Peltier element 81 are integrated is obtained.

  The heat-absorbing fins 82 are continuously formed in a spiral shape (three in FIG. 4) spirally having different protruding heights from the outer wall portion 72 d of the inner cylinder wall 72 along the flow direction of the steam to be centrifuged and contacted. The steam is cooled and condensed by removing the heat of condensation from the steam. The spiral heat absorbing fins 82a having a large protrusion height (contact area) can promote cooling and condensation of steam. On the other hand, in the spiral heat absorbing fin 82b having a small protruding height (contact area) and a large gap with the outer cylinder wall 71, floating dust and the like are easy to pass through and are not easily clogged. Further, the heat generating fins 83 are continuously formed in a spiral shape along the flow direction of the remaining steam after cooling and condensation, and heat the contacted steam to dry the steam. It can be derived to the generator 20.

  Without being centrifuged in the first cyclone 60, the air, steam, dirty water (water droplets), and softened and removed from the communication port 71a between the outer cylinder wall 71 and the inner cylinder wall 72 by the suction action of the suction fan 21 are removed. The dirt and the like flow down (while drawing a vortex) while rotating along the inner peripheral surface of the outer cylinder wall 71. During this time, the steam that has contacted the inner peripheral surface of the outer cylinder wall 71 is deprived of heat by the wall surface and condensed. I do. At the same time, it is centrifuged into air and others. By arranging the Peltier heat pump 80 inside the second cyclone 70, the steam that is about to be sucked into the suction fan 21 side (the opening 72b of the inner cylinder wall 72) without being centrifuged by the second cyclone 70 is cooled. It is possible to condense and heat and dry the remaining steam after cooling and condensation on the inner wall 72c side of the inner cylinder wall 72. The heated and dried air passes through the communication port 72a and reaches the suction channel 32S on the negative pressure generating unit 20 side.

  Returning to FIG. 4, sewage (water droplets), dirt, and the like that are centrifugally separated by the second cyclone 70 and fall are received by a second sewage tank 74 (sewage storage unit) disposed below the second cyclone 70. The second sewage tank 74 is formed integrally with the outer cylinder wall 71 by screwing a screw portion 74m formed on the upper inner peripheral surface thereof with a male screw portion 71m formed on the lower outer peripheral surface of the outer cylinder wall 71. It is attached detachably. A second solenoid 75 is fixed to the central bottom of the second sewage tank 74, and a plunger 75 a of the second solenoid 75 is fixed to the second check valve 73. Reference numeral 75b denotes a return spring for projecting the plunger 75a upward when the second solenoid 75 is de-energized (demagnetized), and 73c denotes a compression coil spring for urging the check valve 73 upward (in the closing direction). Force means).

  Therefore, when the second solenoid 75 is excited based on the control signal output from the control unit 500, the plunger 75a of the second solenoid 75 is retracted against the spring force of the return spring 75b and the compression coil spring 73c ( The second check valve 73 opens the lower opening 71c of the outer cylinder wall 71. As a result, sewage (water droplets), dirt, and the like, which are centrifugally separated by the second cyclone 70 and fall, are collected in the second sewage tank 74 from the lower opening 71c. At this time, a part of the steam sucked from the communication port 71a is condensed on the inner peripheral surface of the outer cylinder wall 71, and is collected in the second sewage tank 74 from the lower opening 71c.

  On the other hand, when the second solenoid 75 is demagnetized (de-energized), the plunger 75a of the second solenoid 75 projects (rises) due to the spring force of the return spring 75b and the compression coil spring 73c, and the second check valve 73 closes the lower opening 71 c of the outer cylinder wall 71. Thereby, the sewage in the second sewage tank 74 is prevented from flowing back to the suction port 31S side or the negative pressure generation unit 20 side, and leakage of sewage during transportation or the like can be prevented. Therefore, when the suction fan 21 is not rotating (when the negative pressure generating unit 20 is not operating; when the second solenoid 75 is OFF), the second cyclone 70 is shut off from the second sewage tank 74.

  Next, a control configuration of the cleaning device 100 will be described with reference to a control block diagram shown in FIG. The control unit 500 includes a CPU 501, a RAM 502, a ROM 503, input / output interfaces 504, 505, and the like, and is configured by a microcomputer to which these are connected so as to be able to transmit and receive. The CPU 501 performs a cleaning operation based on the control program read from the ROM 503. The RAM 502 is used as a work area when executing the program.

As shown in FIG. 6, the following signals are input to the control unit 500 via the input interface 504 from each unit of the cleaning device 100.
An operation unit 300: a main switch 301 for inputting a main power, a steam switch 302 and a dry switch 303 for selectively inputting a steam cleaning operation (wet cleaning operation) and a dry cleaning operation, and cleaning for the steam cleaning operation. Operating signals of a cleaning steam switch 304, a test steam switch 305, and the like for selecting and inputting a fuel injection and a test fuel;
Set position confirmation sensor 230 (see FIG. 8 (a); position detecting means): cleaning attachment 2 (tubular main body) so that both cyclones 60, 70 (both sewage tanks 64, 74) are in a substantially vertical posture. 30) is a cleaning signal (see FIG. 8 (a)) in a cleaning standby posture (see FIG. 8A) leaned against the rear end of the apparatus main body 1 (negative pressure generating section 20);
A dust collection full sensor 210 (see FIG. 1): a detection signal indicating that the dust collection amount of the dust collection unit 10 has exceeded a predetermined value;
A water purification tank remaining amount sensor 241 (see FIG. 2A): a detection signal indicating that the water purification remaining amount in the water purification tank 41 has become equal to or less than a predetermined value;
A steam pressure sensor 245 (see FIG. 2A): a detection signal indicating that the steam pressure in the accumulator has fallen outside a predetermined range;
A first sewage tank full sensor 264 (see FIG. 3): a detection signal indicating that the amount of sewage in the first sewage tank 64 has exceeded a predetermined value;
The second sewage tank full sensor 274 (see FIG. 4): a detection signal indicating that the amount of sewage in the second sewage tank 74 has exceeded a predetermined value.

Similarly, the following signal is output from the control unit 500 to each unit of the cleaning device 100 via the output interface 505.
A pump driving motor 43: a control output signal for rotating and stopping the pump 42;
A heater 44: a control output signal for heating and stopping the purified water in the steam generator 20;
A relief valve 46: a control output signal for supplying and stopping the steam generated by the steam generator 20 to the steam injection nozzle 51;
A fan drive motor 22: a control output signal for rotating and stopping the suction fan 21;
A cleaning motor 52: a control output signal for rotating and stopping the rotating brushes 50a and 50b and the rotating mops 50c1 and 50c2;
A shutter solenoid 34: a control output signal for opening and closing the shutter 33 that closes the suction port 31A for dry air;
A first solenoid 65: a control output signal for opening / closing the lower opening 61c of the first check valve 63 in the outer cylinder wall 61 of the first cyclone 60;
A second solenoid 65: a control output signal for the second check valve 73 to open and close the lower opening 71c in the outer cylinder wall 71 of the second cyclone 60;
A Peltier element 81; a control output signal for driving the Peltier element 81 to make the Peltier heat pump 80 function;
An axial fan 90: a control output signal for driving the axial fan (and its driving motor) 90 to compensate for a decrease in the suction capacity of the suction fan 21;
Display area 310: a display output signal for displaying the operation procedure of switches 301 to 305, the operating state of cleaning device 100, and notes such as failure, malfunction, periodic inspection, and periodic replacement.

  Next, an example of control of the cleaning device 100 will be described with reference to the flowchart of FIG. First, it is checked whether or not the main switch 301 is ON (S1). If it is ON (YES in S1), in S2, the dust collection expiration sensor 210, the clean water tank remaining amount sensor 241, and the first waste water tank expiration sensor 264. Then, it is checked whether the second sewage tank expiration sensor 274 is abnormal. If there is no abnormality in all the sensors (YES in S2), it is confirmed whether or not the steam switch 302 has been selected (operated) (S3). If the steam switch 302 is selected (YES in S3), the shutter solenoid 34 is closed in S4 to close the suction port 31A for dry air with the shutter 33, and the first and second solenoids 65 and 75 are closed. By operating, the lower openings 61c and 71c of the first and second cyclones 60 and 70 are closed with the check valves 63 and 73, and preparation for steam injection is performed.

  On the other hand, if the dry switch 303 is selected instead of the steam switch 302 (NO in S3), the closing operation of the first and second solenoids 65 and 75 is the same in S13, but the opening operation of the shutter solenoid 34 is performed. In step S14, the fan drive motor 22 is operated, and the cleaning motor 52 is operated to perform dry cleaning. Thereafter, the steam cleaning flag is returned to 0 in S15, and the process returns to S1. Here, a notice or guidance may be displayed on the display area 310 so that the selection of the steam switch 302 and the dry switch 203 in S3 is performed smoothly.

  When the preparation for the steam injection is completed in S4, it is checked whether the steam cleaning flag is 1 in S5. Here, the "steam cleaning flag" indicates that steam cleaning has been started (see S11). Since it is 0 at this stage (NO in S5), the process proceeds to S6, where the set position confirmation sensor 230 is turned ON ( Check if it is detected. Here, as shown in FIG. 8A, the "set position" means that the cleaning attachment 2 (the tubular main body portion) is set so that both cyclones 60 and 70 (both sewage tanks 64 and 74) are in a substantially vertical posture. Reference numeral 30) denotes a cleaning standby posture leaned against the rear end of the apparatus main body 1 (negative pressure generating unit 20), and at this time, the set position confirmation sensor 230 is turned ON. If the set position confirmation sensor 230 is ON (YES in S6), the pump driving motor 43 and the heater 44 are operated in S7, and steam generation is started. When the vapor pressure sensor 245 detects a predetermined pressure in S8 and turns on (YES in S8), it is checked whether the cleaning steam switch 304 has been selected (operated) (S9).

  If the cleaning steam switch 304 has been selected (YES in S9), the opening operation of the relief valve, the operation of the fan drive motor 22, the operation of the cleaning motor 52, the operation of the first and second solenoids 65 and 75 in S10. Steam cleaning is performed by the opening operation, the operation of the Peltier element 81, and the operation of the axial fan 90. Since the steam cleaning has been performed in S10, the steam cleaning flag is set to 1 in S11, and the process returns to S1. On the other hand, if the test steam switch 305 is selected instead of the cleaning steam switch 304 (NO in S9), test steam is ejected from the steam ejection port 61e of the first cyclone 60 in S18, and the process returns to S1. Here, a notice or guidance may be displayed on the display area 310 so that the selection of the cleaning steam switch 304 and the test steam switch 305 in S9 is performed smoothly. In any case, by operating the test steam switch 305 at the stage when the steam cleaning becomes possible (S9), whether the steam injection is normal can be actually confirmed, and the test steam is sent from the second cyclone 70. It can also be used for cleaning the first cyclone 60 to which dirt is likely to adhere, which is efficient.

  Further, if the process returns to S1 with the steam cleaning flag set to 1 in S11, the result in S5 is YES, so that S6 and subsequent steps are performed bypassing S6, so that the steam cleaning operation is performed without delay. The steam cleaning flag becomes 0 when the operation is switched to the dry cleaning operation (S15) or when all the operations are stopped (the main switch 301 is turned off).

  If any of the sensors is abnormal in S2 (NO in S2), or if the set position confirmation sensor 230 is OFF in S6 (NO in S6), a warning is displayed in the display area 310. It returns to S1. Here, FIG. 8B is an example of the case where the set position confirmation sensor 230 is OFF. That is, when storing the cleaning device 100 of the present invention, the device main body 1 is inverted as shown in FIG. 8B, and the hook 25 of the device main body 1 is attached to the cleaning attachment 2 (the cylindrical main body portion 30). If the engaging member 35 is hooked, it can be held in the same posture without removing the connecting hose 3 and can be cleared in a space-saving manner. However, since the two sewage tanks 64 and 74 are not in a vertical position, if sewage remains in the tanks, the sewage may leak to the steam suction unit 30S. 230 is OFF). If the vapor pressure sensor 245 has deviated from the predetermined pressure in S8 (NO in S8), the display area 310 is displayed on standby, and the process returns to S1.

(Example 2)
FIG. 9 shows another example of the suction-type cleaning device according to the present invention. The suction-type cleaning device shown in FIG. 9 is represented as a shoulder-type steam cleaning machine (hereinafter also referred to as a steam cleaner) 400. In the steam cleaner 400, a suction unit 430S for steam including a suction port 431S for steam and a suction flow path 432S is connected to a negative pressure generating unit 420, and a suction cleaning device for sucking and removing wet dirt. It is configured as

  As in the first embodiment, a cyclone 70 (centrifugal separator; corresponding to the second cyclone of the first embodiment) and a Peltier heat pump 80 disposed inside the cyclone 70 are provided in the steam suction flow path 432S. (Electronic cooling / heating unit). The cyclone 70 has a function of condensing the sucked steam and centrifuging the sucked air, steam, sewage, and dirt into air and other substances. On the other hand, the Peltier heat pump 80 has a function of cooling and condensing the sucked steam by using the Peltier effect and heating and drying the remaining steam after the cooling and condensation.

  The steam generator 440 of the steam cleaner 400 has substantially the same structure as the steam generator 40 shown in the first embodiment. The cleaning section 450 includes a steam injection nozzle 451. The negative pressure generating section 420 including the suction fan 421 (suction unit) and the fan driving motor 422 (suction unit driving means) is located at the upper center of the steam cleaner 400 and communicates with the steam suction flow path 432S. It is connected to the cyclone 70 via 72a.

  Also in such a steam cleaner 400, the cyclone 70 and the Peltier heat pump 80 prevent the suction steam from reaching the negative pressure generation section 420 and causing a failure in the suction fan 421 and the fan drive motor 422. In addition, the durability of the cleaning device can be improved. In FIG. 9 (Embodiment 2), parts having the same functions as those in FIGS. 1 to 8 (Embodiment 1) are denoted by the same reference numerals, and detailed description is omitted.

In the embodiments described above, various changes can be made without departing from the present invention.
(1) Although the example of application to the canister-type suction-type cleaning device 100 has been described as the first embodiment, the invention may be applied to a central cleaner system as disclosed in Patent Document 2.
(2) As a dedicated steam cleaning machine, a handy type, a hand-operated type, a self-propelled type, etc. can be applied in addition to the shoulder type as in the second embodiment (see Japanese Patent No. 3484188).
(3) Various attachments other than those illustrated may be attached to the cleaning units 50 and 450, and the tip shape may be changed.
(4) In FIG. 2D, the operation switches 301 to 305 are provided on the operation unit 300 of the hand operation handle 39, but the liquid crystal display or the like in the display area 310 may be provided with a touch panel function to enable selection input. .
(5) In FIG. 6, a sensor for detecting opening and closing of the shutter 33 by the shutter solenoid 34 (see FIG. 2A), and first and second check valves 63 by the first and second solenoids 65 and 75. , 73 may be provided with a sensor for detecting opening and closing (see FIGS. 3 and 4).
(6) The set position confirmation sensor 230 may be provided on the apparatus main body 1 side.

The front view which shows an example of the suction-type cleaning device which concerns on this invention. FIG. 2 is a partially enlarged view of FIG. 1, a cross-sectional view of a tubular main body, and an explanatory view of arrangement of an operation unit. FIG. 3 is a front sectional view showing the internal structure of the first cyclone. FIG. 4 is a front sectional view showing the internal structure of the second cyclone. FIG. 5 is a cross-sectional view taken along line CC of FIG. Control block diagram of the suction-type cleaning device of FIG. 7 is a flowchart illustrating an example of the control in FIG. 6. The figure explaining the example of arrangement | positioning of the suction-type cleaning device of FIG. FIG. 4 is a front view showing another example of the suction-type cleaning device according to the present invention.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Attachment for cleaning 20 Negative pressure generation part 30 Cylindrical main body part 30A Suction part for dry air 30S Suction part for steam 31A Suction port for dry air 31S Suction port for steam 32A Suction flow path for dry air 32S Suction for steam Flow path 40 Steam generator 60 First cyclone (preliminary centrifugal separator)
70 Second cyclone (centrifugal separator)
80 Peltier heat pump (electronic cooling / heating unit)
81 Peltier device 82 Heat absorbing fin 83 Heat generating fin 90 Axial fan 100 Suction type cleaning device 230 Set position confirmation sensor (position detecting means)

Claims (17)

A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
The steam suction channel for steam has an electronic cooling / heating unit for cooling / condensing the sucked steam using the Peltier effect and heating / drying the remaining steam after the cooling / condensation. A suction-type cleaning device. A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
In the vapor suction channel,
A centrifugal separator for condensing the sucked steam and centrifuging the sucked air, steam, sewage and dirt into air and other things;
It is located on the downstream side of the suction flow path with respect to the centrifugal separation unit, and uses the Peltier effect to cool and condense the vapor sucked without centrifugation and heat the remaining vapor after the cooling and condensation. An electronic cooling / heating unit for drying;
A suction-type cleaning device comprising: A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
In the vapor suction channel,
A centrifugal separator for condensing the sucked steam and centrifuging the sucked air, steam, sewage and dirt into air and other things;
Electrons that are arranged inside the centrifugal separation unit to cool and condense the steam that is to be drawn in without being centrifuged using the Peltier effect, and to heat and dry the remaining steam after the cooling and condensing. Cooling / heating unit,
A suction-type cleaning device comprising: A suction section for dry air including a suction port and a suction flow path for dry air and a suction section for steam including a suction port for steam and a suction path including a suction flow path are selectively connected to a negative pressure generating section, and are connected in a dry state or a dry state. A suction-type cleaning device for sucking and removing wet stains,
In the vapor suction channel,
Mainly a pre-centrifugal separator for pre-centrifuging the air and other things mainly from the sucked air, steam, sewage and dirt,
It is located downstream of the suction flow path with respect to the preliminary centrifugal separation section, condenses the vapor that has been suctioned without preliminary centrifugation, and extracts air and other substances from the sucked air, steam, sewage, and dirt. And a centrifugal separation unit for further centrifugation,
Electrons that are arranged inside the centrifugal separation unit to cool and condense the steam that is to be drawn in without being centrifuged using the Peltier effect, and to heat and dry the remaining steam after the cooling and condensing. Cooling / heating unit,
A suction-type cleaning device comprising: The centrifugal separation unit is constituted by a cyclone,
The electronic cooling / heating unit includes a Peltier element embedded in an inner cylinder wall of the cyclone, a heat absorbing fin formed so as to protrude from the inner cylinder wall to an outer side where the outer cylinder wall is located, The suction-type cleaning device according to claim 3, wherein a heat-generating fin that is formed to project inward from the wall toward the axis is integrated.   The suction type cleaning device according to claim 5, wherein the heat absorbing fins are continuously formed in a spiral shape along the flow direction of the steam to be centrifugally separated, and cool and condense the steam by removing heat of condensation from the contacted steam. .   The suction-type cleaning device according to claim 5, wherein the heat-absorbing fins have a double-helix structure having different protrusion heights from the inner cylinder wall.   8. The heating fin according to claim 5, wherein the heating fin is continuously formed in a spiral shape along the flow direction of the remaining steam after cooling and condensation, and heats the contacted steam to dry the steam. 9. Suction type cleaning device.   The suction-type cleaning device according to any one of claims 5 to 8, wherein a radiation fin for discharging heat inside the cyclone to the outside is formed on an outer surface of an outer cylindrical wall of the cyclone.   The suction port for the dry air is closed to prevent inflow of suction vapor and dirt in a wet state into the suction section for the dry air when the use of the suction section for the steam is selected. 10. The suction-type cleaning device according to any one of claims 9 to 9. A cleaning attachment used in the suction-type cleaning device according to any one of claims 1 to 10,
At least the suction part for dry air and the suction part for steam have a tubular main body part formed inside,
The cleaning attachment, wherein the cylindrical main body portion is detachably attached to the negative pressure generating portion and directly or indirectly attached via another member to constitute the suction-type cleaning device. . On either one of the cylindrical body portion side and the negative pressure generating portion side, a detection unit for detecting that these are in a predetermined positional relationship corresponding to the cleaning standby posture is provided.
A steam generator for heating the purified water to generate steam for cleaning is attached to the tubular main body,
The cleaning attachment according to claim 11, wherein when the cleaning standby posture is detected by the detection unit, the steam generation unit can prepare for steam generation. On either one of the cylindrical body portion side and the negative pressure generating portion side, a detection unit for detecting that these are in a predetermined positional relationship corresponding to the cleaning standby posture is provided.
A steam generator for heating the purified water and generating steam for cleaning is attached to the tubular main body,
A sewage storage unit for storing sewage cooled and condensed by the electronic cooling and heating unit is attached to the steam suction flow path of the tubular main body unit,
When the use of the steam suction channel is selected, regardless of whether the detection unit is in the cleaning standby position or not, the sewage storage unit is shut off from the steam suction channel,
13. The cleaning attachment according to claim 11, wherein when the cleaning standby posture is detected by the detection unit, the steam generation unit can prepare for steam generation. In the cylindrical main body, a suction flow path of the suction section for steam and a suction flow path of the suction section for dry air are defined and formed.
The cleaning attachment according to any one of claims 11 to 13, wherein a cross-sectional area of the suction flow path for the steam is formed larger than a cross-sectional area of the suction flow path for the dry air.   The tubular main body has a suction flow path for the steam suction section, a suction flow path for the dry air suction section, and a steam discharge flow path for discharging steam generated in the steam generation section. The cleaning attachment according to any one of claims 12 to 14, wherein the cleaning attachment is partitioned.   The axial flow fan for introducing the sucked steam to the electronic cooling / heating unit is arranged in the steam suction flow path of the tubular main body part. Attachment for cleaning. A suction type cleaning device for suctioning and removing wet stains, wherein a steam suction unit including a steam suction port and a suction flow path is connected to the negative pressure generation unit, and
The steam suction channel for steam has an electronic cooling / heating unit for cooling / condensing the sucked steam using the Peltier effect and heating / drying the remaining steam after the cooling / condensation. A suction-type cleaning device.

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