WO2018106188A1 - Ensemble ventilateur - Google Patents

Ensemble ventilateur Download PDF

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Publication number
WO2018106188A1
WO2018106188A1 PCT/SG2017/050602 SG2017050602W WO2018106188A1 WO 2018106188 A1 WO2018106188 A1 WO 2018106188A1 SG 2017050602 W SG2017050602 W SG 2017050602W WO 2018106188 A1 WO2018106188 A1 WO 2018106188A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan assembly
supporting
air
fixture
fan
Prior art date
Application number
PCT/SG2017/050602
Other languages
English (en)
Inventor
Mun Chew Kong
Chze Seong Cheong
Original Assignee
K-One Industries Pte. Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SG10201610275WA external-priority patent/SG10201610275WA/en
Priority claimed from SG10201705975TA external-priority patent/SG10201705975TA/en
Application filed by K-One Industries Pte. Ltd. filed Critical K-One Industries Pte. Ltd.
Priority to SG11201801149UA priority Critical patent/SG11201801149UA/en
Publication of WO2018106188A1 publication Critical patent/WO2018106188A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B37/00—Tables adapted for other particular purposes
    • A47B37/04—Tables specially adapted for use in the garden or otherwise in the open air, e.g. with means for holding umbrellas or umbrella-like sunshades
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B83/00—Combinations comprising two or more pieces of furniture of different kinds
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B83/00—Combinations comprising two or more pieces of furniture of different kinds
    • A47B83/04—Tables combined with other pieces of furniture
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/62—Accessories for chairs
    • A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
    • A47C7/74—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
    • A47C7/742—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling for ventilating or cooling
    • A47C7/744—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling for ventilating or cooling with active means, e.g. by using air blowers or liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F2013/0608—Perforated ducts

Definitions

  • the present application relates to a fan assembly with cooling means.
  • the application also relates to methods for making, modifying, installing, assembling, maintaining, configuring and using the fan assembly with cooling means.
  • Food centres in Singapore provide a venue for purchasing and consuming food and beverages.
  • a typical food centre usually has hot environment where diners have to dine in discomfort, especially during lunch time.
  • Heat in the food centres is generated by many stalls who prepare food and beverages by stoves, ovens, machineries and even refrigerators. The heat is also contributed by natural heat propagated from the sun on a hot day. Heat in the food centres is aggravated by high humidity and poor air circulation causing the diners to perspire and feel grimy on their skin.
  • the present application aims to provide a fan assembly for providing cooling or pleasant environment to diners.
  • the application also aims to present new and useful methods for making, modifying, installing, maintaining, configuring and using the fan assembly.
  • Essential features of the application are provided by one or more independent claims, whilst advantageous features are presented by their dependent claims.
  • the present application provides a fan assembly that comprises a supporting fixture (e.g. baseplate, railing) for upholding or supporting an object (e.g. user) on top of the supporting fixture.
  • the supporting fixture is optionally a plate, a platform, a bed or any other base, buttress, column, prop, pole, or shaft.
  • the fan assembly also comprise a supporting stand (e.g. table stand or hollow cylinder) that is connected to the supporting fixture for raising the supporting fixture above the ground to a predetermined height.
  • the supporting stand is adjustable in height so that the supporting fixture is able to be fixed at a desired height.
  • the supporting stand is telescopically extendable in its length or height so that the supporting fixture is kept away from dust, pest, wheels or human feet on the ground.
  • the fan assembly comprises one or more ducts, tubes or tunnels connected to the supporting structure or the supporting stand for channelling a cooling stream to a side of the fan assembly.
  • the one or more ducts, tubes or tunnels have openings at one or more edges, sides or surfaces of the fan assembly so that the cool stream is directed to one or more users of the fan assembly, especially at the fan assembly's proximity (e.g. near an edge of the supporting fixture).
  • the supporting structure, the supporting stand or both are optionally integrated into one or more pieces of furniture items such that the fan assembly has an outlook of a piece of furniture, such as a chair, a stool, a table, a bed, a cupboard.
  • the supporting base or supporting fixture comprises a tabletop (e.g. countertop, counter top, counter, benchtop, worktop, or kitchen bench) for keeping tableware or tableware items on top of the tabletop or the supporting fixture, which has the appearance of a table having the fan assembly.
  • the supporting fixture comprises a plank or board of a cupboard so that cool streams of air may be discharged from side edges or top surfaces of the plank or board, cooling the cupboard and its surroundings. A diner who sits next to the "table" is able to enjoy cool stream of air that is discharged from a circular edge of the table, which is actually delivered by the supporting fixture with one or more ducts at its sides or peripheral edge.
  • the supporting fixture can alternatively comprise one or more seats (e.g. stool, chair) for supporting a person.
  • the fan assembly becomes a stool or chair that is able to deliver the cool stream of air or other cooling media (e.g. mist, dry ice).
  • the supporting stand of a seat has one or more orifices or nozzles that are connected to the one or more ducts, discharging cool streams of air to legs of diners sitting on the seat.
  • one or more of the fan assemblies can be installed in a food centre, provide effective and efficient cooling to diners.
  • the supporting fixture, the supporting stand or both optionally comprise one or more rails, bars, shafts, pillars, panels or walls that have orifices, openings or nozzles for discharging the cool streams of air or other cooling media.
  • the rail includes a hand-rail at a bus stop, a bus terminal or a public transport interchange station (known as interchange) so that passengers at the bus stop, the bus terminal or the interchange are able to enjoy the cool streams of air when waiting for their buses.
  • Energy consumption of the rail-type fan assembly is much lower an ordinary electric fan, which blows hot air almost aimlessly from a distance.
  • the fan assembly may further comprise one or more nozzles on a surface or edge of the fan assembly (e.g. supporting fixture or stand).
  • the one or more nozzles are connected to the one or more ducts for directing the cool stream towards one or more users of the fan assembly or to a close proximity of a user.
  • the one or more nozzles are able to be regulated for adjusting flow rate of the cool stream through the one or more nozzles, whether automatically or manually. Users of the fan assembly is able to adjust direct, opening size, flow rate or even temperature the cool stream by controlling the fan assembly.
  • the one or more nozzles may additionally comprise one or more valves for regulating (e.g. changing flow rate, opening size or direction of) the cool stream from the nozzle.
  • the one or more nozzles can be configured to shut off or open automatically. For example, a door of the one or more nozzles is activated by the seat of the supporting fixture or base so that the one or more nozzles of a stool with the fan assembly discharge cool streams of air if seated by a diner, as triggering or activation. Cool streams of air are conserved from wasteful usage, especially when diners are not present on or next to the fan assembly.
  • Embodiments of the fan assembly further comprise an electric fan or automatic fan that is connected to the one or more ducts, nozzles or both for driving the cooling stream through the duct.
  • the electric fan is able to accelerate or propel air stream in the one or more ducts so that diners or users are able to feel strong air stream when desired.
  • the fan assembly optionally comprises one or more sensor or ambient sensors (e.g. temperature, humidity, light, proximity sensors) or timers that are connected to a controller or computer.
  • the fan assembly becomes able to respond to surrounding situations (e.g. temperature, people, time) in order to provide customised or optimised cooling.
  • the fan assembly is able to accelerate or propel more air stream if detecting hot ambient temperature (e.g. >35°C).
  • the sensor is alternatively known as a detector for operating the fan assembly or observing ambient of the fan assembly automatically.
  • the one or more ducts optionally comprises multiple channels in the supporting fixture or the supporting stand for guiding the cooling stream to a lateral edge of the supporting fixture.
  • the one or more ducts include tunnels or tubes that are radially connected at their ends and the tunnels are provided in the tabletop, between a top surface and a bottom surface of the tabletop.
  • the common ends of the ducts, channels or tunnels are connected to an inlet, or further to the electric fan so that nozzles or openings at opposite ends of the ducts, tunnels or tubes are able to deliver multiple cool streams of air radially, providing thermal comfort to diners at the fan assembly or tabletop.
  • the fan assembly may further comprise a heat exchanger (e.g. air conditioning device or air-conditioner) that is connected to the one or more ducts for providing the cooling stream having temperature lower than an ambient temperature of the fan assembly.
  • a heat exchanger e.g. air conditioning device or air-conditioner
  • the heat exchanger not only is able to deliver cool air to the diners, but also I able to provide hot water to kitchens or stalls. Energy consumption of effectiveness of the heat exchanger becomes much lower than merely providing cool air (e.g. cooling by refrigerant) or hot water (e.g. heating by coal) alone.
  • the heat exchanger comprises a heat pump or an air source heat pump for providing both hot water up to 55 ⁇ 60°C and the cool stream of air.
  • the heat exchanger can comprise an evaporative cooler for drawing water automatically, without or without a pump.
  • the evaporative cooler consumes less energy as compared to air-conditioners, and also offer cool air of reasonable comfort.
  • the evaporative cooler is able to deliver cool air stream of 2 ⁇ 5°C lower than its ambient air temperature.
  • the evaporative cooler optionally comprises a concealed or automatic water collector for keeping freshwater for the evaporative cooler. Pest or external disturbance (e.g. by kids playing) is effectively prevented, making maintenance of the evaporative cooler easier.
  • the water collector of the evaporative cooler has an automatic feeder of freshwater (e.g. by water level sensor) so that the water collector is automatically kept full or at a predetermined level if connected to a water source (e.g. water tap).
  • Embodiments of the fan assembly provide the evaporative cooler that comprises a capillary material or porous material for drawing water automatically without a pump, opposite to the direction of gravity.
  • the fan assembly include the capillary material or porous material directly such that the cool streams are able to flow over the capillary material or porous material, providing additional cooling by evaporation of cooling fluid(s) or refrigerant(s), such as water.
  • the capillary material comprises a foam (e.g. silicon carbide ceramic foam filter, metal foam) that has a pore size of 10mm (millimetres), 8mm, 6mm, 5mm, 4.5mm, 3.5mm, 2.8mm, 2.1 mm, 1 .8mm, 1 .4mm, 1 .2mm, 1 mm, 08mm, 0.6mm, 0.4mm, 0.2mm or smaller.
  • the capillary material alternatively includes one or more cluster of thin tubes for drawing water.
  • Diameters of the tubes range from 10mm (millimetres), 8mm, 6mm, 5mm, 4.5mm, 3.5mm, 2.8mm, 2.1 mm, 1 .8mm, 1 .4mm, 1 .2mm, 1 mm, 08mm, 0.6mm, 0.4mm, 0.2mm or smaller.
  • the capillary or porous material further includes aerated concrete, gypsum plaster, clay brick, mortar, concrete brick or cured concrete and sponge.
  • the heat exchanger may comprise a thermal energy storage material (i.e. thermic material) for absorbing heat from the cooling stream.
  • the thermal energy storage material may include one or more materials with latent heat or high heat capacity so that the thermal energy storage material is used to absorb heat of air stream when flowing over it, offering the cool air stream.
  • the fan assembly optionally comprises a renewable energy harvester (e.g. solar panel) for powering the fan assembly.
  • the renewable energy harvester includes wind turbine, geothermal energy collector, bio energy harvester (e.g. waste food composter) that possibly provides auxiliary power source to the fan assembly.
  • the fan assembly optionally comprises one or more dinning furniture (e.g. dining table, stool, chair, kitchen top) having its supporting stand on the ground, and one or more ducts are connected to an external source of the cool stream.
  • the one or more dining furniture items may be independently operated, mutually connected or centrally powered.
  • Embodiments of the fan assembly or any of its components are mobile, permanent or detachable (e.g. the supporting stand has wheels). For example, a nozzle of the fan assembly has a catch so that a technician is able to click or snap a replacement nozzle when repairing.
  • the present application provides a residence for providing a cooling ambient to diners.
  • Example of the residence includes office, building, eating place, hawker centre, coffee shop, bar, cafeteria, dining room, canteen, chophouse, pizzeria, night club, soda fountain, saloon, restaurant and inn.
  • the residence comprises a first fan assembly that comprises the supporting fixture and the supporting stand.
  • the residence also comprises a second fan assembly that include the supporting fixture and the supporting stand.
  • the first fan assembly and the second fan assembly share the same source of cool stream or power supply.
  • the two fan assemblies can be coordinated, synchronised or complement each other.
  • the present application provides a fixture (i.e. fan assembly) with cooling means for proximal cooling of a user.
  • the fixture comprises one or more perforations along a surface of the fixture and one or more channels within the fixture, which are connected to the one or more perforations. In use, cool streams of air are able to flow through the channels and the perforations.
  • the fixture i.e. fan assembly
  • a supporting structure e.g. horizontal top, tabletop or stool top
  • a supporting stand e.g. hollow vertical support, table stand, stool stand
  • the fixture optionally has a receptacle for storing a liquid (e.g. freshwater) is installed in the vertical support, advantageously at the bottom of the table/stool stand.
  • the fixture can additionally include a capillary medium for being partially submerged in the receptacle for drawing the liquid.
  • the fixture i.e. fan assembly
  • the fixture may include a pump in the receptacle for drawing liquid to a ring with evenly distributed perforations at a high position for moistening the capillary medium.
  • the (i.e. fan assembly) can moreover include a ventilator (e.g. electric fan) is installed in the channel for driving the air flow therein.
  • the fixture or fan assembly may have a base support with a concentric bore for flowing of the air into the vertical support and into the channels within the horizontal top.
  • FIG. 1 illustrates a plurality of application of fixtures with cooling means installed at a food centre
  • Fig. 2 illustrates the schematic of a cooling device
  • Fig. 3 illustrates a first embodiment of a table with the cooling means
  • Fig. 4 illustrates a second embodiment of the table with the cooling means
  • Fig. 5 illustrates a third embodiment of the table with the cooling means
  • Fig. 6 illustrates a fourth embodiment of the cooling means.
  • FIG. 1 illustrates a plurality of application of fixtures with cooling means installed at a food centre 80.
  • a diner 82 is seated on a first stool with a nozzle 92 ejecting a steady airstream at a stool stand.
  • the diner 82 with his elbow resting on a table tap has also a nozzle 92 ejecting the airstream from a table stand 134.
  • a second stool is located opposite the first stool and unoccupied.
  • the two stools and the one table are erected on a horizontal ground (not shown) with the ends contacting the floor coupled to a first insulated conduit 88.
  • the first insulated conduit 88 is attached to a cooling device 94.
  • a second insulated conduit 90 from the cooling device 94 is guided to a wall fan 84 and a ceiling fan 86.
  • a plurality of nozzle 92 is introduced along the second insulated conduit 90 specifically at a position of the wall fan 84 and a position of the ceiling fan 86.
  • the rotating blades of the fans 84,86 accelerate the airstream from the nozzles 92 to the directions of the fans 84,86.
  • the cooling device 94 herein is a heat pump 94 which transfers heat energy from a source of heat to a destination called a "heat sink".
  • the heat pump 94 is designed to move thermal energy in the opposite direction (usually is from hot to cold places) of spontaneous heat transfer by absorbing heat from a cold space and releasing it to a warmer one.
  • the source of heat and the heat sink area interchangeable.
  • the source of heat is the ambient heat outside the food centre 80 whilst the heat sink is the cooler indoor ambient environment of the food centre 80.
  • the source of heat is from the indoor ambient environment and the heat sink is the cooler outdoor.
  • the cooling device 94 is powered by a battery solar power system 98.
  • the battery solar power system comprises a charge controller, a battery bank, a system meter and a main DC (Direct Current) disconnect.
  • the battery solar power system 98 is connected to an electrical grid 97 and to a plurality of photovoltaic solar panel 96.
  • Fig. 2 illustrates a schematic of the cooling device 94 or a heat pump.
  • the cooling device 94 has an evaporator 100, a pressure lowering device 101 , a condenser 102 and a compressor 108.
  • the cooling device 94 is in an enclosure (not shown).
  • An inflow air 104 enters the cooling device 94 from an inlet (not shown).
  • the evaporator 100 absorbs the heat from the inflow air 104.
  • An outflow air 106 exits the cooling device at an outlet (not shown).
  • the outflow air 106 has a higher temperature than the inflow air 104. This outflow air 106 is not used to ventilate the indoor food centre 80.
  • the outflow air 106 is used to heat a container of water or a boiler 1 16 (not shown).
  • the boiler 1 16 is made of metal, for example aluminium which is non-corrosive at ambient temperature and relatively a good conductor of heat.
  • the condenser 102 can placed in the boiler directly 1 16 to heat the water.
  • the condenser 102 in this case must be made of corrosion resistant metal at high temperature like bronze which is a good conductor of heat.
  • the heated water can be channelled through water pipe to a dishwasher 1 18.
  • the heat pump 94 exploits the physical properties of a volatile evaporating and condensing fluid known as a refrigerant.
  • the heat pump 94 specifically the compressor 108 compresses the refrigerant to make it hotter on the side to be warmed, and releases the pressure at the side where heat is absorbed.
  • the heat to be absorbed is the outdoor environment assuming it is hotter than the indoor environment as described previously.
  • the refrigerant in its gaseous state, is pressurized and circulated through the system by the compressor 108.
  • the now hot and highly pressurized vapor 1 10 is cooled in a heat exchanger, called a condenser 102, until it condenses into a high pressure, moderate temperature liquid 1 12 or a condensed refrigerant 1 12.
  • the condensed refrigerant 1 12 then passes through a pressure-lowering device 101 also called a metering device.
  • This may be an expansion valve, capillary tube, or possibly a work-extracting device such as a turbine 120.
  • the turbine 120 is used in the current embodiment.
  • the turbine 120 propels a cool air 107 from the cooling device 94 and into the indoor food centre 80 through the conduits 88,90 as shown in Fig. 1 .
  • the low-pressure liquid refrigerant 1 14 then enters another heat exchanger, the evaporator 100, in which the low-pressure liquid refrigerant 1 14 absorbs heat and boils.
  • the low-pressure liquid refrigerant 1 14 then returns to the compressor 108 and the cycle is repeated.
  • the fluid must reach a sufficiently low temperature when allowed to expand, or else heat cannot flow from the ambient cold region into the fluid in the cold heat exchanger (the evaporator).
  • the pressure difference must be great enough for the fluid to condense at the hot side and still evaporate in the lower pressure region at the cold side. The greater the temperature difference, the greater the required pressure difference, and consequently the more energy needed to compress the fluid.
  • the coefficient of performance decreases with increasing temperature difference.
  • Insulation is used to reduce the work and energy required to achieve a low enough temperature in the space to be cooled.
  • the space is the indoor of the food centre 80.
  • FIG. 3 illustrates a first embodiment 130 of a fixture with the cooling means specifically for the table top 132 with the table stand 134.
  • the table stand 134 has a base support 136 that is fastened to the horizontal ground 196 by at least two bolts and nuts 140.
  • the table stand 134 is orthogonally erected and joined (welded) to the base support 136.
  • the base support 136 is a circular disc with a bore 138 in the centre.
  • the bore 138 has a diameter about thirty millimetres (30 mm).
  • the table stand 134 is a hollow cylinder 134 with the two ends exposed. A bottom end of the hollow cylinder 134 is joined to the base support 136 circumscribing the bore 138 in the centre. A top end of the hollow cylinder 134 is joined to the table top 132. At a top section is a three-bladed fan 142 driven by a DC (direct current) motor. The DC motor is attached to a tripod 144. The three legs of the tripod 144 are supported by the inner periphery of the hollow cylinder 134 at the top section. The tripod 144 is positioned within the hollow cylinder 134 just below the top end of the hollow cylinder 134.
  • the DC motor is energised by at least one electrical wire (positive and negative wires).
  • the at least one electrical wire extends in the hollow cylinder 134 and to a power source (not shown).
  • the power source can be a dry cell battery or electricity from the utility grid, or from renewable energy sources. If a dry cell battery were used, an access point is provided along the hollow cylinder 134 to replace the battery.
  • a body of the hollow cylinder 134 there are two spouts 146 on a left side and on a right side. The two spouts 146 puncture through the wall of the hollow cylinder 134 and are aligned horizontally across each other.
  • a bevel 148 that circumscribes the inner periphery.
  • the spouts 146 can be angled or pointing upwards towards the table top 132. Still, the spouts 146 can be nozzles 92 that are directionally rotatable and possess rotational air volume control.
  • the table top 132 has a thickness of forty millimetres (40 mm) and a diameter of one thousand millimetres (1 ,000 mm).
  • the erected table stand 134 has a height of seven hundred millimetres (700 mm).
  • An outer diameter of the table stand 134 (as a supporting stand) is sixty millimetres (60 mm) with an inner diameter of fifty millimetres (50 mm).
  • the spout 146 which is circular has a diameter of ten millimetres (10 mm).
  • the table top 132 is made of fibreglass which possesses water resistant property whilst the table stand 134 is made of steel which is durable.
  • a circular hole 150 underneath the table top 132 or a bottom surface communicates with the top end of the erected table stand 134.
  • the circular hole 150 fits onto the top end of the table stand 134 or the hollow cylinder 134.
  • the circular hole 150 also has a diameter of sixty millimetres (60 mm). Additional fasteners are in place to secure the coupling between the table top 132 and the table stand 134.
  • air channels 152 as shown in broken lines that extend from the centre to a circumference of the table top 132.
  • the table top 132 in Fig. 3 has four air channels 152 that diverges from the centre to the circumference forming an orthogonal cross.
  • the four air channels 152 terminate along the circumference with four funnel-like vents 156.
  • the one vent 156 has a rectangular profile with a length of forty millimetres (40 mm) and a height of twenty millimetres (20 mm).
  • Underneath the table top 132, along the four air channels 152 are visible holes 154.
  • Three visible holes 154 are along each air channel 152.
  • FIG. 4 illustrates a second embodiment 160 of the table with the cooling means used on the table top 132 with the table stand 134.
  • the table top 132 is similar to the first embodiment 130.
  • the table stand 134 is perforated with perforations 162 around the periphery thereof.
  • FIG. 5 illustrates a third embodiment 170 of the table with the cooling means used on the table top 132 with the table stand 134.
  • the cooling means of the second embodiment 160 include the perforations along the periphery of the table stand 134 and the three-bladed fan 142 at the top section of the table stand 134.
  • the third embodiment 170 has a hollow cylindrical water tank 172 placed at the bottom end of the table stand 134.
  • the hollow cylindrical water tank 172 having a trough at its bottom and an exposed brim.
  • a hollow cylindrical membrane 178 is inserted into the hollow cylindrical water tank 172 at the exposed brim.
  • An electric water pump 174 is placed inside the hollow cylindrical water tank 172.
  • a water hose 176 is connected to the electric water pump 174 with an opposite end connected to a hollow ring 180 with perforations along the hollow ring 180.
  • the water hose 176 can either be on an outer periphery or an inner periphery extending from a bottom end to a top end of the hollow cylindrical membrane 178.
  • the hollow ring 180 is placed at a top end of the hollow cylindrical membrane 178.
  • the outer diameter of the hollow cylindrical water tank 172 is about fifty millimetres (50 mm), the inner diameter of the hollow cylindrical water tank 172 is about twenty-five millimetres (25 mm).
  • the height of the hollow cylindrical water tank 172 is about one hundred millimetres (100 mm).
  • the height of the hollow cylindrical membrane 178 is about seven hundred millimetres (700 mm) with 100 mm of the bottom part immersed in the hollow cylindrical water tank 172.
  • the water in the hollow cylindrical water tank 172 travels upwards on the hollow cylindrical membrane 178 through capillary action moistening itself.
  • the top end of the hollow cylindrical membrane 178 is moistened by the hollow coil having water trickling down the inner surface thereof.
  • the air coming from the bore 138 at the base support 136 travels upwards through the hollow cylindrical membrane 178.
  • the hollow cylindrical membrane 178 can be a hollow hexagonal membrane.
  • An increase surface area helps in the evaporative process which removes the heat and creating cooler air.
  • Alternative liquid may be used instead of water.
  • the fixture with cooling means can also be used for the stool as well.
  • the stool has the same structure as the table.
  • a stool stand (as a supporting stand) and a stool top (as a supporting fixture).
  • Fig.6 illustrates a fourth embodiment 190 of the cooling means relating to a hand rail 192.
  • the figure depicts a partial view of the hand rail 192 revealing the inner periphery on a left side and the hand rail 192 extends to a right bend towards the ground 196.
  • the cooled air is introduced into the hand rail 192 from a connecting conduit 88.
  • a first terminal end of the hand rail 192 on the right end is joined to the base support 136.
  • the base support 136 is screwed to the ground 196 by two bolts and secured by two nuts 140.
  • the second terminal end of the hand rail 192 on the left side is also joined to another base support 136.
  • the air flow goes back to the conduit 88 underground.
  • the hand rail 192 has a plurality of perforation 162 as shown by the shaded circles along the periphery thereof.
  • a right human hand 194 is shown to grip the hand rail 192.
  • the arrows in the figure shows the direction of air flow 198 from the conduit 88 to the ground 196 and into the handrail 192.
  • the air flow 198 is driven by the cooling device 94 located remotely. The cooled air from the cooling device 94 is then transported through the conduit 88 and to the hand rail 192.
  • the fixtures described in Fig. 1 relates to the table, the stool, the wall fan 84 and the ceiling fan 86.
  • the fixtures by themselves are unable to provide any cooling means.
  • a fixture that is able to provide the means to cool a diner 82 is sought after especially the table and the stool as they are in close proximity to the diner 82.
  • the table stand 134 and the stool stand have nozzles 92 constructed to provide the cool air.
  • the cool air is provided by the first insulated conduit 88.
  • the second insulated conduit 90 is specially routed to the wall fan 84 and the ceiling fan 86.
  • the routed second insulated conduit 90 has nozzles 92 that provide the cool air to the two fans 84,86.
  • the two insulated conduit 88 are coupled to the cooling device 94 that provides a centralised air cooling means.
  • the cooling device 94 is a heat pump that is able to transfer heat energy from a source of heat (temperature above 10 Q C would contain heat) to a heat sink.
  • the principle of vapor compression refrigeration uses a refrigerant R134a involving a compressor and a condenser to absorb heat at one place and release it at another.
  • R134a (1 ,1 ,1 ,2- tetrafluoroethane, R-134a, Freon 134a, Forane 134a, Genetron 134a, Florasol 134a, Suva 134a or HFC-134a
  • norflurane is a haloalkane refrigerant with thermodynamic properties similar to R12 (dichlorodifluoromethane) but with insignificant ozone depletion potential and a somewhat lower global warming potential (1 ,430, compared to R-12's GWP of 10,900).
  • the heat pump 94 absorbs heat from a cold space (evaporator coil, which extracts heat from ambient air) and releasing it to a warmer space (inner heat exchanger coil, which transfer the heat into a water tank).
  • the heat pump 94 provides free cool air, environmentally friendly and low cost of operation.
  • Heat pump 94 is used to transfer heat because less high-grade energy is required than is released as heat. Most of the energy for heating comes from the external environment, only a fraction of which comes from electricity (or some other high-grade energy source required to run a compressor 108).
  • the heat transferred can be three or four times larger than the electrical power consumed, giving the system a coefficient of performance (COP) of 3 or 4, as opposed to a COP of 1 for a conventional electrical resistance heater, in which all heat is produced from input electrical energy.
  • COP coefficient of performance
  • the heat pump 94 uses a refrigerant as an intermediate fluid to absorb heat where it vaporizes, in the evaporator 100, and then to release heat where the refrigerant condenses, in the condenser 102.
  • the refrigerant flows through insulated pipes between the evaporator 100 and the condenser 102, allowing for efficient thermal energy transfer at relatively long distances.
  • the heat pump 94 which is powered by the battery solar power system 98 charge provides further energy conservation so as not to solely rely on the electrical grid 97.
  • the charge controller prevents the battery from overcharging by interrupting the flow of electricity from the photovoltaic (PV) solar panels 96 when the battery bank is full.
  • the battery bank connects a group of batteries together.
  • the batteries are similar to car batteries but designed specifically to endure the type of charging and discharging that is required to handle in a solar power system.
  • the system meter provides a measurement and display of the solar PV system performance and status.
  • the main DC disconnect is a DC rated breaker between the batteries and the inverter (Direct Current to Alternating Current) providing a rapid disconnecting from the battery bank for servicing.
  • the battery solar power system 98 is also connected to the electrical grid 97 also known as a grid-tied PV system.
  • the grid-tied PV system inverters are designed to shut down when the grid experiences a power outage so as to protect the utility repair workers from being shocked by electricity coming from the PV array. As a result, during a power outage, the electricity coming from the PV array cannot be utilized. However, if the PV system includes a battery bank, during a power outage the energy produced by the PV system can be utilized and stored in the batteries which is shown in Fig. 1 .
  • a grid-tied PV system with battery backup is ideal if you live in an area that has unreliable power from the grid or that experiences power outages due to natural disasters.
  • the base support 136 provides the support of the table stand 134 and the table top 132.
  • the bore 138 at the base support 136 provides a channel for the cool air to flow into the table stand 134 and table top 132.
  • the cylindrical structure of the table stand 134 provides a uniform structural strength.
  • the table stand 134 is hollow so as to provide unobstructed air flow to the table top 132.
  • the bore 138 at the base support 136 is circumscribed by the table stand 134 or also known as the hollow cylinder 134 so that the air from the cooling device 94 is delivered into the hollow cylinder 134.
  • a three-bladed fan 142 driven by a D.C. (direct current) motor.
  • the three- bladed fan 142 provides a propulsion of cool air from the bottom end to the top end of the hollow cylinder 134. Therefore, the blades are angled to provide an upward flow of air.
  • the three-bladed fan 142 also serves to increase the air flow speed through the hollow cylinder 134.
  • the spouts 146 along the periphery of the hollow cylinder 134 provides lateral air flow to the diner 82 sitting around the table so that the air flow reaches the lower parts of the diner(s) 82.
  • the bevel 148 along the inner periphery of the hollow cylinder 134 specifically above the two spouts 146, is to channel the air flow from the bottom end thereof to the spouts 146.
  • the channelled air driven upwards by the three-bladed fan 142 goes to the table top 132 through the circular hole 150.
  • the four air channels 152 in the table top 132 allow the cool air to flow to the funnel-like vents 156 at the circumference.
  • Along the four air channels 152 in the table top 132, beneath the table top 132 are perforations which provides cool air to the diner 82.
  • the table stand 134 is perforated around the periphery.
  • the perforations provide more cool air to be purged from the table stand 134.
  • the third embodiment 170 as shown in Fig. 5 uses the principle of evaporation to cool the air further.
  • the hollow cylindrical membrane 178 provides a medium for the absorption of water from the hollow cylindrical water tank 1 72. However, only part of the hollow cylindrical membrane 178 is moistened based on capillary action of the water. Therefore, the electric water pump 174 is used to pump the water through the water hose 176 and into a hollow ring 180 at the top end. The water will trickle on to the hollow cylindrical membrane 178 from the perforations around the hollow ring 180.
  • the cool air introduced through the bore 138 at the base support 136 provides a low humidity cool air (dry cool air) which provides accelerated rate of evaporation of the moisture on the hollow cylindrical membrane 178.
  • dry cool air dry cool air
  • cooler air purge from the table stand 134 and the table top 132.
  • the hollow cylindrical membrane 1 78 also provides filtration for the air as well as the water.
  • the membrane must be permeable to air so that the flow of air is not obstructed.
  • the permeability can be altered by either increasing or decreasing the layers of membrane Alternatively, a less expensive medium to use can be a fabric like a cloth.
  • the fixture with cooling means relating specifically to the table and the stool with cooling means.
  • a method of constructing the table top 132 comprising the steps of first forming a mould.
  • the mould takes the shape of a circle.
  • a channel-vent structure which is laid in the mould which is within the table top 132.
  • a resin typically a two-part thermoset polyester, vinyl or epoxy which is mixed with its hardener in the mould and the channel-vent structure is applied thereon.
  • sheets of fibreglass matting are laid into the mould and the channel-vent structure. Then more resin mixture is applied.
  • the resin mixture and the fibreglass must conform to the mould, and air must not be trapped between the fibreglass, the channel-vent structure and the mould.
  • the table top 132 may be covered with a plastic sheets and vacuum is drawn on the table to remove air bubbles and press the fibreglass to the shape of the mould.
  • the moulded table top 132 is cured in an oven.
  • a method of constructing the table stand 134 comprising the steps of first, acquiring a metal hollow cylindrical tube. Secondly, drilling a plurality of hole around the hollow cylindrical tube. The holes made can either be for the installation of the spouts 146 at the outer periphery of the hollow cylindrical tube or simply perforations for the out flowing of cool air from within. Optionally, the three-bladed fan 142 can be installed at the top end of the table stand 134. [0075] Finally, joining the base support 136 to the bottom end of the table stand 134 by welding.
  • the assembly of the table top 132 and the table stand 134 is achieved by inserting the top end of the table stand 134 into the circular hole 150 underneath the table top 132.
  • Relating to the cooling device 94 which is a reversible heat pump 94 work in either direction to provide heating or cooling indoors.
  • a reversing valve is used to reverse the flow of refrigerant from the compressor through the condenser and evaporation coils.
  • the cooling device 94 provides two modes of operation, a heating mode and a cooling mode.
  • the outdoor coil is an evaporator
  • the indoor coil is a condenser.
  • the refrigerant flowing from the evaporator (outdoor coil) carries the thermal energy from outside air indoors. Vapour (refrigerant) temperature is augmented within the pump by compressing it.
  • the indoor coil then transfers the thermal energy (including energy from the compression) to the indoor air, which is then conveyed indoors by conduits 88,90 as shown in Fig. 1 where the conduits 88,90 are routed to the fixtures.
  • the thermal energy is transferred to the water, which is then used to heat the indoor environment via radiators.
  • the heated water may also be used for domestic hot water consumption like dishwashing.
  • the refrigerant is then allowed to expand, cool, and absorb heat from the outdoor temperature in the outside evaporator, and the cycle repeats.
  • the "cold" side of the refrigerator (the evaporator coil) is positioned so it is the outdoor environment where is colder.
  • the cycle is similar, but the outdoor coil is now the condenser and the indoor coil (which reaches a lower temperature) is the evaporator. This is the familiar mode in which air conditioners operate.
  • the term "about”, in the context of concentrations of components of the formulations, typically means +/- 5% of the stated value, more typically +/- 4% of the stated value, more typically +/- 3% of the stated value, more typically, +/- 2% of the stated value, even more typically +/- 1 % of the stated value, and even more typically +/- 0.5% of the stated value.
  • range format may be disclosed in a range format.
  • the description in range format is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the disclosed ranges. Accordingly, the description of a range should be considered to have specifically disclosed all the possible sub-ranges as well as individual numerical values within that range. For example, description of a range such as from 1 to 6 should be considered to have specifically disclosed sub-ranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6 etc., as well as individual numbers within that range, for example, 1 , 2, 3, 4, 5, and 6. This applies regardless of the breadth of the range.

Abstract

L'invention concerne un ensemble ventilateur comprenant un appareil de support destiné à maintenir un objet sur l'appareil de support ; et un pied de support relié à l'appareil de support afin de soulever l'appareil de support au-dessus du sol. L'ensemble ventilateur comprend au moins un conduit destiné à canaliser un courant de refroidissement vers un côté de l'ensemble ventilateur. Un appareil muni de moyens de refroidissement, destinés au refroidissement proximal d'un utilisateur, comprend au moins une perforation le long d'une surface de l'appareil et au moins un canal à l'intérieur de l'appareil relié à ladite perforation, ce qui permet un écoulement d'air à travers le canal et ladite perforation. L'appareil comprend en outre une partie supérieure horizontale munie de canaux à son intérieur, un support vertical creux fixé orthogonalement à la partie supérieure horizontale et un support de base accouplé au support vertical.
PCT/SG2017/050602 2016-12-07 2017-12-06 Ensemble ventilateur WO2018106188A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SG11201801149UA SG11201801149UA (en) 2016-12-07 2017-12-06 Fan Assembly

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SG10201610275WA SG10201610275WA (en) 2016-12-07 2016-12-07 Localised cooler for open hawker centres
SG10201610275W 2016-12-07
SG10201705975TA SG10201705975TA (en) 2017-07-21 2017-07-21 Evaporative Cooler
SG10201705975T 2017-07-21

Publications (1)

Publication Number Publication Date
WO2018106188A1 true WO2018106188A1 (fr) 2018-06-14

Family

ID=62491288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2017/050602 WO2018106188A1 (fr) 2016-12-07 2017-12-06 Ensemble ventilateur

Country Status (2)

Country Link
SG (1) SG11201801149UA (fr)
WO (1) WO2018106188A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020018020A1 (fr) * 2018-07-17 2020-01-23 K-One Industries Pte. Ltd. Refroidisseur d'air
CN111981612A (zh) * 2020-08-31 2020-11-24 珠海格力电器股份有限公司 一种加湿器的控制方法、控制装置及加湿器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507634A (en) * 1947-10-14 1950-05-16 Ralph H Hill Restaurant equipment
JP2005006846A (ja) * 2003-06-18 2005-01-13 Shinyuutekku:Kk 遊技場用椅子
US20110146542A1 (en) * 2009-12-17 2011-06-23 Branning William C Outdoor table with thermally conditioned air
US20140165627A1 (en) * 2011-07-18 2014-06-19 Purix ApS Method for chilling a building
US20160123335A1 (en) * 2014-10-29 2016-05-05 William F. Molnar, IV Table umbrella apparatus
WO2016189457A1 (fr) * 2015-05-27 2016-12-01 Whiteam S.R.L. Unité de protection d'un espace extérieur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507634A (en) * 1947-10-14 1950-05-16 Ralph H Hill Restaurant equipment
JP2005006846A (ja) * 2003-06-18 2005-01-13 Shinyuutekku:Kk 遊技場用椅子
US20110146542A1 (en) * 2009-12-17 2011-06-23 Branning William C Outdoor table with thermally conditioned air
US20140165627A1 (en) * 2011-07-18 2014-06-19 Purix ApS Method for chilling a building
US20160123335A1 (en) * 2014-10-29 2016-05-05 William F. Molnar, IV Table umbrella apparatus
WO2016189457A1 (fr) * 2015-05-27 2016-12-01 Whiteam S.R.L. Unité de protection d'un espace extérieur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020018020A1 (fr) * 2018-07-17 2020-01-23 K-One Industries Pte. Ltd. Refroidisseur d'air
CN111981612A (zh) * 2020-08-31 2020-11-24 珠海格力电器股份有限公司 一种加湿器的控制方法、控制装置及加湿器

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