Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L9/2894—Details related to signal transmission in suction cleaners
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L5/00—Structural features of suction cleaners
  • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
  • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
  • A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L9/2805—Parameters or conditions being sensed
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L9/2805—Parameters or conditions being sensed
  • A47L9/2821—Pressure, vacuum level or airflow
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
  • A47L9/2842—Suction motors or blowers

Definitions

• the present invention relates to a remote control device for an integrated suction unit.
• An integrated suction unit is composed of an assembly comprising a dust tank, an electric motor, a turbine, and various electrical devices for controlling the suction group and finally of suction sockets which can receive cleaning members. .
• the suction unit can be placed in a service room, a technical room, a garage, a basement, etc .; this is connected by a network of conduits to suction outlets arranged judiciously in the areas to be cleaned.
• Each suction outlet is closed by an articulated cover and can receive the end of a flexible hose, the other end of which is equipped with a handle and a telescopic tube designed to receive various cleaning accessories such as a brush, turbo -brush, nozzle, etc.
• Another principle is to use a remote control per channel radio where the transmitter is placed on the handle of the hose where and the receiver is placed near the suction group, the control being carried out on the transmitter by action on a push button.
• This principle has many disadvantages and among these:
• the most damaging situation is that the latter can no longer stop because the pressure switch, calibrated in the factory and then installed inside the group, does not take account of leaks on the pneumatic network as a whole.
• a last principle described and represented in PCT patent n ° 88.02232 in the name of ALLAWAY OY consists in using a sound wave transmission for starting the suction group, by means of a transmitter installed in the handle of the hose. and a microphone installed near the suction unit.
• This sound wave propagates, via the network of conduits, to the microphone which, after analysis and recognition of said sound wave, will emit a signal to control the relay of the electric motor of the suction group in order to cause it to start up.
• This transmitter is produced from a push button which actuates a loudspeaker providing as output a sound wave on a frequency of the order of 16 Hz.
• Such an embodiment has many drawbacks because it requires the adoption of '' an oversized loudspeaker and a large independent power supply both incorporated in the handle to provide an audible signal of such frequency.
• the loudspeaker membrane must be in direct pneumatic communication with the network of conduits, which undergoes significant variations in depression (of the order of 3000 to 4000 mm of water column) which can damage said membrane.
• the device according to the invention overcomes such a drawback while remaining reliable, inexpensive and can be installed on an existing or future network in less than fifteen minutes.
• the device according to the invention of the type of that using, via the network of conduits, means of sound transmission between the suction group and the sockets and means for detecting this specific acoustic pressure wave and acting on the operation of said group is remarkable in that the above means capable of generating an acoustic pressure wave consist of the above flexible which, connected to one of the suction sockets, will create, after manipulation, a specific sound wave conveyed by the network of conduits to the aforesaid means for detecting and operating the suction group.
• the simple act of handling it produces a specific sound wave on a dominant frequency which will propagate in the pneumatic network up to the vicinity of the suction group.
• the means of detecting this sound wave using a receiver equipped with a microphone type sensor pneumatically connected to the suction network and electrically to a control logic which will control the starting of the suction group .
• the control device of the invention comprises, on the one hand, the means of interrupting the suction flow using a quarter-turn valve constituted by a connector. placed in a few seconds between the handle and the hose, and on the other hand, near the suction group, means making it possible to detect the absence of flow with an increase in vacuum and connected pneumatically to the network of conduits and electrically to a sensor itself connected to the control unit which, after a certain time, will control the electrical relay of the motor to stop the suction unit.
• the same control logic will authorize the restarting of the suction group controlled by the manipulation of the hose, only after the turbine has come to a complete standstill.
• the aforesaid means making it possible to detect the absence of flow with an increase in the vacuum in the network of conduits are constituted by a depressostat of tubular shape with an orifice at its base and at the inside a core screwed on a bolt, itself supported on a compression spring, ⁇ also includes a sensor electrically connected to the control unit and able to detect in the tube at the height of a second orifice, the absence or the presence of said nucleus.
• the pressure switch used is adjustable to adapt to the maximum possible vacuum in the pneumatic duct network in order to tolerate any non-repairable leak resulting from improper installation.
• the above-mentioned means making it possible to detect the absence of flow rate with an increase in the vacuum in the network of conduits are constituted by the microphone making it possible to detect in said network the sound wave produced by handling the hose.
• the microphone is also able to detect the difference in sound level caused in the ductwork by an increase in vacuum, so as to provide a second signal to the logic output. control which will stop the group, after a predetermined time delay.
• the adjustable pressure switch with its sensor, the microphone detecting the acoustic pressure wave and / or the increase in vacuum in the network as well as the control logic are combined in a single container so that they can be pneumatically linked very easily using a connection tee to the above network of conduits.
• control unit can also manage a current source from the group generally intended to be connected to the suction sockets, this source available using a connector outside the group facilitates the installation of the system because a simple electrical connection with two conductors is sufficient.
• this control device of the invention offers numerous advantages, in particular:
• Figure 1 is a schematic side view with partial cross sections showing the embodiment of the device according to the invention.
• Figures 2 and 3 show two embodiments of the valve with a side view in section in its operating position and a top view in section in its stopped position.
• the suction group referenced 1 As shown in the drawing of FIG. 1, the suction group referenced 1 as a whole and of the most widespread type by design on the market, is equipped with a motor 49 controlled by a relay 41 to rotate a turbine 48 in order to create a vacuum in a box 16 and, by means of an orifice 17 formed in said box, in the whole of the pneumatic network of conduits 13.
• conduits 13 are at their ends 13A connected to suction sockets 11, distributed in the cleaning zone, each being equipped a shutter 10 sealing the network 13 when closed.
• a flexible and light hose 8 provided with a nozzle 9 connects to one of the sockets 11 after opening the shutter 10.
• a handle 5 At the other end of the hose 8 is a handle 5 which can, at its end 5A, receive cleaning accessories.
• this installation is advantageously equipped with a remote control device ensuring the starting or stopping of the suction group 1 represented in 2 for its reception part and in 3 and 8, for its emission part .
• the compact receiver 2 is housed in a tee 14 for its pneumatic connection with the network 13 and is connected to the connector 36 by the conductors
• the suction group 1 is started up after introduction of the hose 8 with its end piece
• the control logic 23 controls a current source 28 so as to cause a current draw in the circuit formed by all of the conductors 50, 51, 34, 35, 39, 40 and 42 interconnected using connectors 33 and 36, so that the coil of relay 41 of the group suction 1 establishes, using its power contact, a current passage in the conductors 45, 43 and 47 representing the phase of a supply of the sector with 220 volts, the neutral being connected directly to the motor 49 by l he conductors 44 and 46.
• the electric motor 49 of the turbine 48 then starts to create a vacuum in the box 16 then, passing through the orifice 17, in the entire network of conduits 13.
• the current source 28 supplying the control logic 23 advantageously comes from the low voltage transformer 38 supplying the relay 41. It should be noted that the control logic 23 uses for its operation a very low or even insignificant current source, the latter being able to cross the coil of relay 41 without affecting its proper functioning
• the suction unit 1 is shut down in one step, with means making it possible to interrupt the air flow in the suction network 13, and on the other hand with means allowing to detect this absence of air flow in the network.
• the means for interrupting the air flow in the network 13 are constituted by a valve 3 formed in a connector connected with its sleeve 3B at the end 8A of the hose 8 and with its sleeve 3A at the end 5B of the handle 5
• This valve shown in detail in the drawing of Figure 2, has a housing 7 which fits and adjusts a handle 6 provided with an orifice 12 corresponding to the inner diameter of the hose 8.
• a screw 4 held in the valve 3 and protruding into the housing 7 comes to fit into a groove 6A formed in the handle 6, on a quarter of the latter's perimeter 6, which allows, after a manual action of a quarter turn on the handle 6 or to interrupt the air flow throughout the pneumatic network 13.
• the means making it possible to detect the absence of air flow with an increase in the vacuum in the network of conduits 13 can be constituted by a depressostat 21, which, associated with a sensor 32 connected to the control logic 23, is constituted by a tube 27 with an orifice 20 at its base and inside a core 30 screwed on a bolt 26 bearing on a compression spring 24.
• the increase in the vacuum in the network of conduits 13 is transmitted to the depressostat 21, through the orifice 20 in the tube 27 causing the displacement of the core 30 in the direction of the arrow 29 which compresses, by means of the depression adjustment bolt 26, the spring 24.
• This displacement the purpose of the core 30 is to release an orifice 31 formed on the height of the tube 27 thus allowing said electronic sensor 32 disposed opposite, to detect the absence of the core 30 at this height and to transmit, via its conductors 25, a signal l to the control logic 23 which will order the source 28, after a preset period of time, the cancellation of the current flow in the circuit constituted by the conductors 50, 51, 34, 35, 39, 40 and 42, which are connected together by connectors 33 and 36.
• the delay preset in the control unit 23 for stopping group 1 is intended to prevent any untimely stopping of said group, due to the temporary obstruction of the cleaning accessories during normal use.
• the coil of the control relay 41 actuates its power contact towards the opening causing the interruption of the flow of current in the circuit constituted by the conductors 45, 43 and 47 of the motor 49 of the turbine 48 which, being more powered by the phase but only by the neutral using conductors 46 and 44, stops to work.
• the core 30 of the depressostat 21 rises in the opposite direction to that of the arrow 29 obstructing the orifice 31 of the tube 27 at the level of the sensor 32 which then transmits, via its conductors 25, a new signal to the control unit 23 to give, after a certain time delay (corresponding to the end of the complete shutdown of the turbine ( 48), the possibility for the sensor-microphone 19 to listen to a new signal for restarting the suction group 1.
• the absence of flow with an increase in the depression in the network of conduits 13 can be detected by the sensor-microphone 19 which measures the difference in the sound level produced inside the network of conduits 13 by the variations in depression. er this difference in level and send an output signal to the control unit which will program the interruption of the motor supply circuit 49.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Electric Vacuum Cleaner (AREA)
• Manipulator (AREA)
• Nozzles For Electric Vacuum Cleaners (AREA)
• Selective Calling Equipment (AREA)
• Switch Cases, Indication, And Locking (AREA)
• Devices That Are Associated With Refrigeration Equipment (AREA)
• Massaging Devices (AREA)
• Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
• Control Of Fluid Pressure (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9446202

Family Applications (1)

Country Status (10)

Cited By (2)

Families Citing this family (1)

Citations (5)

Family Cites Families (1)

• 1993
  • 1993-04-13 FR FR9304588A patent/FR2703897B1/fr not_active Expired - Fee Related
• 1994
  • 1994-04-08 AU AU65411/94A patent/AU687049B2/en not_active Ceased
  • 1994-04-08 DE DE69415800T patent/DE69415800T2/de not_active Expired - Lifetime
  • 1994-04-08 EP EP94913153A patent/EP0695137B1/de not_active Expired - Lifetime
  • 1994-04-08 CA CA002160383A patent/CA2160383C/fr not_active Expired - Fee Related
  • 1994-04-08 AT AT94913153T patent/ATE175330T1/de not_active IP Right Cessation
  • 1994-04-08 WO PCT/FR1994/000398 patent/WO1994023633A1/fr active IP Right Grant
  • 1994-04-08 ES ES94913153T patent/ES2129122T3/es not_active Expired - Lifetime
  • 1994-04-08 DK DK94913153T patent/DK0695137T3/da active
• 1998
  • 1998-11-27 HK HK98112363A patent/HK1011275A1/xx not_active IP Right Cessation

Patent Citations (5)

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