EP4249750B1 - Abgedichtete peristaltische pumpe für elektrisches haushaltsgerät - Google Patents

Abgedichtete peristaltische pumpe für elektrisches haushaltsgerät

Info

Publication number
EP4249750B1
EP4249750B1 EP23185139.5A EP23185139A EP4249750B1 EP 4249750 B1 EP4249750 B1 EP 4249750B1 EP 23185139 A EP23185139 A EP 23185139A EP 4249750 B1 EP4249750 B1 EP 4249750B1
Authority
EP
European Patent Office
Prior art keywords
liquid
pump
household appliance
peristaltic pump
sealing element
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP23185139.5A
Other languages
English (en)
French (fr)
Other versions
EP4249750A3 (de
EP4249750A2 (de
Inventor
Mathias GANEM
Régis FEREYRE
Johan Sabattier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
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
Application filed by SEB SA filed Critical SEB SA
Publication of EP4249750A2 publication Critical patent/EP4249750A2/de
Publication of EP4249750A3 publication Critical patent/EP4249750A3/de
Application granted granted Critical
Publication of EP4249750B1 publication Critical patent/EP4249750B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F04B43/1261—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing the rollers being placed at the outside of the tubular flexible member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/09—Pumps having electric drive

Definitions

  • the present invention relates to the field of peristaltic pumps used in household appliances and preferably in hairdressing appliances.
  • the invention also relates to household appliances, and in particular to hairdressing appliances, containing peristaltic pumps.
  • the invention relates to a peristaltic pump for household appliances comprising a pump body defining a chamber in which there is a deformable pipe intended to contain a liquid to be moved.
  • the invention also relates to a household appliance, and preferably a hair styling appliance, comprising a peristaltic pump as defined above.
  • Peristaltic pumps are known in industrial fields, for example documents CN203614372U Or US3421447 .
  • a peristaltic pump allows a fluid, particularly water, to be moved in order to produce steam.
  • the use of this type of pump allows for a hair styling device with numerous advantages, including a sealed fluid circuit. Indeed, in a peristaltic pump, the transported fluid is not in contact with any moving parts, since it remains contained within the deformable tube of the peristaltic pump, a tube that is regularly compressed by one or more rollers mounted on the rotor.
  • the peristaltic pump sets the fluid in motion. This simplifies the fluid transport circuit, reducing it to just one pipe: the peristaltic pump pipe.
  • the present invention aims to overcome the aforementioned drawbacks.
  • One objective of the invention is to provide a peristaltic pump that is particularly safe, especially in the event of a rupture of its tubing.
  • Another objective of the invention is to provide a peristaltic pump that is particularly compact.
  • Another objective of the invention is to provide a reliable and robust peristaltic pump.
  • One objective of the invention is to provide a hairdressing device that is particularly safe, especially in the event of a rupture of the peristaltic pump hose.
  • Another objective of the invention is to offer a hair styling device that is particularly compact and ergonomic.
  • Another objective of the invention is to offer a hair styling device that is particularly reliable and robust.
  • a household appliance preferably a hair styling device, comprising a peristaltic pump according to claim 1.
  • breakage of the flexible hose refers to any deterioration that could lead to a loss of seal in the hose, i.e., a leak of the liquid contained within it. For example, this could result from a hose bursting, a crack in the hose, a hole in the hose, excessive hose porosity, or accidental disconnection or unplugging of the hose, such as due to overpressure caused by scale buildup in the appliance.
  • the term “chamber” refers to any three-dimensional space designed to house at least one component, in this case, the pump's flexible hose.
  • the liquid is contained, that is, held and retained, within the pump chamber and does not spill out of the pump in the event of a rupture of the deformable tube. Consequently, a potential rupture of the peristaltic pump tube has limited consequences since the liquid remains contained inside the pump and does not spill out, as would normally be the case with pumps known in the prior art. It is therefore possible to install a pump as defined by the invention in spaces where the presence of any liquid is normally undesirable, for example, in the immediate vicinity of electrical or electronic components, as will be detailed later.
  • the chamber comprises a rotor in contact with the deformable pipe.
  • This rotor is connected to a drive shaft passing through the pump body, and the sealing device includes a first sealing element located between the drive shaft and the pump body. Consequently, in the event of a rupture of the deformable pipe, the liquid cannot escape through the area between the drive shaft, which is a rotating moving part, and the pump body, which is a stationary part.
  • the first sealing element comprises a lip seal, preferably a double-lip seal.
  • This type of seal and in particular the double-lip seal, ensures a very good seal between a rotating shaft, in this case the drive shaft, against which the lip(s) of the seal bear, and a stationary part, in this case the pump body, in which the seal is held.
  • the peristaltic pump includes a cover cooperating with the pump body, and the sealing device includes a second sealing element disposed between the pump body and the cover.
  • the second sealing element includes a circular gasket disposed at least partially on the periphery of the pump body and the cover.
  • the peristaltic pump includes an inlet connector for receiving a suction conduit of liquid, and an outlet connector for receiving a liquid discharge conduit, connected to the deformable pipe.
  • the sealing device preferably includes a third sealing element disposed between the pump body and at least one of the inlet or outlet connectors.
  • the third sealing element is disposed between the cover and at least one of the inlet or outlet connectors.
  • the third sealing element is disposed between the pump body, the cover, and at least one of the inlet or outlet connectors.
  • the pump can be positioned with at least one of its connectors, or even both, positioned at the bottom, and, even in the event of a rupture of the deformable pipe, there will be no leakage of liquid at the connectors, i.e. between the connectors and the pump body or the cover for example.
  • the third sealing element comprises a plate, preferably made of silicone, through which each of the inlet and outlet connectors passes.
  • This plate is positioned between the pump body and/or the pump cover and around at least one of the inlet or outlet connectors.
  • the plate has two openings, preferably two holes, each opening accommodating one of the connectors.
  • the third sealing element is positioned between the pump body and/or optionally the cover and each of the inlet and outlet connectors.
  • This third sealing element comprises two O-rings.
  • each connector has its own O-ring positioned between the connector and the pump body and/or the cover to ensure a seal of the chamber at the connectors.
  • the inlet and outlet connectors are arranged in the same plane on a single external face of the peristaltic pump. This allows for a particularly compact pump with all connections grouped on one face, thus limiting the length of the tubing required for the pump's inlet and outlet.
  • the inlet and outlet connectors each have an advantageous bend of approximately 90°.
  • Such connectors facilitate pump integration by positioning the pump transversely to the suction and discharge lines, respectively at the pump's inlet and outlet. This allows for a reduction in the overall size of the pump and liquid lines.
  • peristaltic pump resulting from the combination of the three embodiments described above. This would result in a particularly compact peristaltic pump, easy to manufacture and maintain because it is equipped with a cover, inexpensive, and completely leak-proof, regardless of its orientation in space, in the event of a rupture of its deformable tube.
  • the sealing device would then comprise the aforementioned first, second, and third sealing elements.
  • the peristaltic pump for household appliances comprises a pump body defining a chamber containing a deformable tube for holding a liquid to be moved, and a liquid drainage device designed to, in the event of a rupture of the peristaltic pump's deformable tube, drain the liquid from the chamber to the outside of the peristaltic pump along a controlled trajectory.
  • the liquid drainage device includes at least one hole, which allows the liquid flow trajectory to be controlled very economically and safely.
  • controlled trajectory it is understood that the point through which the liquid will drain, i.e., flow, is predefined and chosen by the designers. In other words, it is known precisely where and how the liquid will drain.
  • the diameter of the hole is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm.
  • the fluid drainage device comprises two holes, advantageously arranged close to each other, for example, separated by a distance of between 1 mm and 5 mm, which increases the flow rate and therefore the drainage speed.
  • the presence of multiple holes also ensures that the pump can drain even if one of the holes becomes blocked.
  • the total drainage area is thus between 2 mm2 and 2.5 mm2 , to ensure a sufficient drainage flow rate.
  • the drainage device is arranged through the pump body, through the pump cover, or through both the pump body and the cover.
  • the draining device can consist of any device passing through the pump body, or the cover or the pump body and the cover, that is to say any device capable of connecting the chamber and the outside of the pump at a place defined in advance by design, that is to say defined by the designer.
  • the objective is not necessarily to retain the liquid inside the chamber but rather to control its trajectory, that is, to control its evacuation, by having chosen and defined in advance, by design, the precise point where the liquid must flow. Thanks to this remarkable embodiment, it is It is therefore possible to provide, when integrating the pump into its environment, a complementary device, communicating with said drainage device, to, for example, collect and store the liquid (by means of a reservoir for example) or to drain and evacuate the liquid (for example by means of a pipe or a hole as will be detailed later).
  • this embodiment is compatible with, and even advantageously complementary to, the embodiments described previously.
  • the combination of this drainage device and the sealing device remarkably ensures the safe operation of peristaltic pumps and meets the most stringent standards. Indeed, in the event of a rupture of the pump's deformable tube, two devices work together to, firstly, prevent uncontrolled fluid leakage from the pump, and secondly, control the fluid flow and its trajectory. Thus, regardless of the pump's orientation, the fluid will always flow through the drainage device; that is, the fluid will be safely discharged at a precise location defined in advance during the design phase. Indeed, even if the drain is located at a high point due to the pump's orientation, the liquid will still drain through it after the chamber is completely full.
  • this design combining a sealing device and a drain device, ensures the pump's safety should either device fail. For example, if the sealing device were to fail, perhaps due to excessive wear, any liquid accidentally present in the chamber would flow along a path controlled by the drain device, i.e., to a precise and predetermined location. Conversely, if the drain device were to fail, for example, if it were blocked, then any liquid accidentally present in the chamber would remain contained within it. In other words, this design offers a dual safety mechanism: a sealing device and a drain device.
  • the invention also relates to a household appliance comprising a peristaltic pump according to any one of the preceding embodiments.
  • said household appliance forms a hair styling appliance, in particular a hair styling appliance, such as a straightener or a curling iron.
  • the device comprises a first arm and a second arm articulated together by a hinge to form a hair-shaping clamp.
  • the device thus forms a straightening clamp that allows for ease of use and optimal styling results.
  • the first arm comprises a reservoir and a first contact hair treatment surface, with the liquid evacuation device located between the reservoir and the first treatment surface.
  • This arrangement allows for a particularly compact hair styling appliance.
  • the placement of the evacuation device between The reservoir and the first treatment surface prevent the latter from coming into contact with any liquid that might accidentally enter the arm, thus preventing the liquid from coming into contact with the hair.
  • an electric heating element e.g., a PTC thermistor.
  • the liquid drainage device is located between 10 mm and 50 mm from the edge of the first treatment surface, preferably between 20 mm and 30 mm. This ensures a safe distance from the first treatment surface and, in particular, from its electric heating element.
  • said apparatus comprises an electric motor, a reservoir for holding a liquid to be moved to a liquid consumption device, the inlet connector is connected to the reservoir, the outlet connector is connected to the liquid consumption device, the drive shaft is connected to a motor shaft of the electric motor and the peristaltic pump is disposed between the reservoir and the liquid consumption device.
  • the peristaltic pump includes a fluid drainage device.
  • the device comprises a housing containing the peristaltic pump and at least one electrical or electronic component.
  • the housing includes a fluid drainage device designed to discharge the fluid outside the housing.
  • the drainage device is arranged so that the fluid cannot come into contact with the electrical or electronic component, and the drainage device communicates with the discharge device.
  • the liquid in the event of an unexpected or accidental presence of liquid inside the pump, the liquid is rapidly evacuated along a trajectory predetermined by the designers and to a precise location, thereby preventing any accidental contact between the liquid and any electrical or electronic component. More specifically, the liquid is first evacuated from the pump to a precise, predetermined location by means of the liquid draining device, and then evacuated from the device by means of the discharge device, the latter communicating with the pump's draining device.
  • the draining and discharge devices thus communicate with each other by any sealed means.
  • the pump's draining device can be connected to the device's discharge device by means of a pipe, or the draining and discharge devices can be placed side by side, for example, one above the other.
  • the fluid drainage device comprises at least one, and preferably two, orifices passing through the housing.
  • the orifice can have any shape.
  • the orifice is preferably a hole with a diameter between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm.
  • the drainage cross-section is advantageously between 1 mm2 and 4 mm2 , and preferably between 2 mm2 and 2.5 mm2 .
  • the liquid drainage device is open from in a permanent state with the environment, in this case, the atmosphere.
  • the liquid drainage device is free of any plug or other obstruction or sealing element.
  • the liquid drainage device is arranged through the pump body.
  • the peristaltic pump includes a cover mounted on the pump body and the liquid draining device can be arranged through the cover.
  • the draining device can consist of any device passing through the pump body, the cover or the pump body and the cover, that is to say any device capable of connecting the chamber and the outside of the pump at a place defined in advance by design.
  • the fluid drainage device comprises at least one hole, said at least one orifice, and at least one hole, being arranged opposite each other, that is to say, one facing the other.
  • This arrangement allows for a particularly compact and inexpensive device since the distance between the drainage and discharge devices is minimized.
  • a sealing element preferably an O-ring, is positioned between the drain and discharge devices, ensuring a seal between the pump and the device housing and thus preventing any risk of accidental contact between the liquid and the electrical component(s) of the device.
  • any liquid that might be inside the pump chamber in the event of a rupture of the flexible hose is directly discharged outside the pump housing in a deliberate and controlled manner, notably by defining the precise location where the liquid should be discharged during the design phase.
  • discharging the liquid outside the device will alert the user, at least visually, that a malfunction has occurred inside their hair styling appliance (in (for example, the occurrence that the deformable pipe has broken).
  • the household appliance 1 as defined by the invention is a hair styling appliance and more specifically a hair straightener equipped with a liquid consumption device 4. More specifically, the liquid consumption device 4 comprises a vaporization means 41, In this case, a vaporization chamber and a means 42 for diffusing the vapor thus produced towards a strand of hair.
  • the diffusion means 42 may, in particular, be formed by a series of orifices, as illustrated, or by a diffusion slit or groove. Such elements are well known to those skilled in the art and are, for example, detailed in the patent. EP 2 449 909 of the plaintiff.
  • the household appliance 1 comprises a first arm 11 and a second arm 12 connected to each other by a hinge 13 disposed substantially at the end of each of said first arm 11, and second arm 12.
  • the arms are mobile relative to each other in a rotational movement and more precisely in a clamping motion.
  • the first arm 11 comprises a first hair treatment surface 112 by contact, in this case a heating plate.
  • the second arm 12 comprises a second hair treatment surface 122 by contact, which can be seen on the figure 2 , complementary to the first treatment surface 112.
  • the second contact treatment surface 122 is also heated.
  • the hinge 13 allows the user to open the straightening clamp to insert a strand of hair between the processing surfaces 112, 122, and then close the clamp on the strand of hair to perform the shaping, usually a straightening.
  • the household appliance 1 also includes a liquid storage device, in this case a reservoir 3.
  • a liquid storage device in this case a reservoir 3.
  • the reservoir is intended to store water.
  • the reservoir could also store a cosmetic product, possibly diluted in water.
  • the reservoir is integrated into the first arm 11.
  • the reservoir can, in fact, be located at a distance from the first arm 11 and the second arm 12, and for example, it could be located in a remote base (i.e., situated at a distance from the gripper) connected to one of the arms by a cord capable of transporting the liquid.
  • a remote base i.e., situated at a distance from the gripper
  • the household appliance 1 includes a housing 111 formed by the first base 11.
  • the housing is formed by the previously mentioned offset base.
  • the housing 111 thus forms an enclosure, for example made of plastic material, containing at least one electrical or electronic component, such as a heating element (e.g., PTC), an electric motor 5, a temperature sensor, a capacitor, a circuit board, etc.
  • a heating element e.g., PTC
  • an electric motor 5 e.g., a thermometer
  • a temperature sensor e.g., a thermometer
  • a capacitor e.g., a thermometer
  • circuit board e.g., a circuit board
  • these components are very sensitive to any contact with liquid, and in particular water, as such contact can cause damage, even destruction, and even lead to a risk of electrocution.
  • the household appliance 1 includes a liquid transport device, in this case a peristaltic pump 6.
  • a liquid transport device in this case a peristaltic pump 6.
  • the peristaltic pump 6 is integrated into the first arm as can be seen in the figure 5 , but it is also possible, without departing from the scope of the invention, for the peristaltic pump 6 to be integrated into the remote base mentioned above.
  • the peristaltic pump 6 includes, in particular, a pump body 60.
  • An inlet connector 61 is arranged on the pump body 60 to connect the peristaltic pump 6 to a suction line 32, which is itself connected to the reservoir 3.
  • An outlet connector 62 is arranged on the pump body 60 to connect the peristaltic pump to the liquid consumption device 4, via a discharge line 33. More specifically, each of the inlet connectors 61 and outlet connectors 62 pass through the pump body 60. Thus, a portion of each of the Inlet connectors 61 and outlet connectors 62 protrude outside the pump, and a portion of each inlet connector 61 and outlet connector 62 protrudes inside the pump, i.e., into a chamber 68.
  • Each of the inlet connectors 61 and outlet connectors 62 includes an elbow, preferably oriented at 90°.
  • the elbow is located outside the peristaltic pump 6, in contact with the pump body 60.
  • the elbow is rigid, as are the connectors, which ensures good resistance and prevents unwanted bending.
  • the inlet connectors 61 and outlet connectors 62 can then be positioned on the same face of the pump body 60, even if that face is small. Indeed, the inlet connector 61 and outlet connector 62 can be positioned side by side, as illustrated, or even in contact with each other, which reduces the overall size of the peristaltic pump 6 and simplifies the routing of the suction 32 and discharge 33 lines.
  • the inlet connector 61 and outlet connector 62 can be oriented in diametrically opposite directions while remaining adjacent, resulting in a particularly simple and compact external fluid circuit.
  • the suction 32 and discharge 33 lines are practically aligned with each other, that is, in the same plane and almost along the same straight line.
  • each of these conduits enters and exits the peristaltic pump 6 from the same side of the pump, i.e., from one and the same side. This makes it possible to position the peristaltic pump 6 in a particularly confined and difficult-to-access location, since only one side of the pump needs to be accessible to connect the suction conduit 32 and the discharge conduit 33.
  • the pump also includes a 64 cover cooperating with the pump body 60. More specifically, the cover 64 is mounted on the pump body 60, making the pump easy to assemble. In particular, the assembly of the various internal components, such as the components of a rotor 65, is facilitated. Furthermore, the peristaltic pump 6 can be disassembled and reassembled at will, without any damage, for example, to work on the internal components.
  • the peristaltic pump 6 is also connected to an electric motor 5 designed to drive the various moving parts of the peristaltic pump 6 and thus move the liquid from the reservoir 3 to the liquid consumption device 4.
  • the diagram shows the various components of the peristaltic pump 6.
  • the pump body 60 forms a chamber 68, that is, a space, recess, or housing containing various elements.
  • the chamber 68 is defined by the pump body 60 and is closed by the cover 64.
  • the chamber contains a deformable tube 63, a rotor 65 comprising one or more pressure elements 651 connected to the rotor by a support 653, and one or more springs 652.
  • the deformable tube 63 is fixed and is connected on one side to the inlet connector 61 and on the other side to the outlet connector 62, forming a loop.
  • the rotor 65 is located at the center of the loop and is driven by a drive shaft 51 that passes through the pump body 60 and is connected to the motor shaft of the electric motor 5.
  • the rotor is guided in its rotation by a bearing 645 housed in the cover.
  • the pressure elements 651 such as rollers, compress the deformable tube 63 at specific points. Their movement, resulting from the rotation of the rotor 65, creates a suction effect and also displaces the liquid inside the deformable tube 63.
  • the peristaltic pump 6 and the electric motor are both connected to a mounting plate 52 for example by means of screws 53.
  • the peristaltic pump 6 includes a sealing device 661, 662, 663.
  • the latter constitutes a safety device forming an integral part of the pump described in detail below.
  • the sealing device of the peristaltic pump 6 comprises a first sealing element 661 disposed between the drive shaft 51 and the pump body 60 (or, alternatively, the cover 64). More precisely, the first sealing element 661 is a lip seal, preferably a double-lip seal. Such a seal is indeed very effective in ensuring a perfect seal against any liquid between a rotating part, in this case the drive shaft 51, and a stationary part, in this case the pump body 60 (or possibly the cover 64).
  • any liquid that might be inside the chamber 68 could not escape outside the chamber, i.e., outside the peristaltic pump 6, through the gap, i.e., the functional clearance between the drive shaft 51 (rotating part) and the pump body 60 (fixed part).
  • the first sealing element 661 ensures both the proper rotation of the drive shaft 51 relative to the pump body 60 (or possibly the cover) and the sealing between these two parts.
  • the peristaltic pump 6 also includes a second sealing element 662 disposed between the pump body 60 and the cover 64, as can be seen in the figure 7
  • This second sealing element 662 is advantageously formed by a circular cross-section gasket.
  • the second sealing element 662 is then positioned around the chamber 68, near the rim, i.e., the periphery of the pump body 60 and the cover.
  • the second sealing element 662 follows the contour of the pump body 60 and the cover 64, and thus replicates their shape.
  • the second sealing element 662 forms almost a loop upon itself; however, it has two edges, meaning it is not completely closed.
  • the second sealing element 662 is roughly horseshoe-shaped or even resembles the Greek capital letter Omega.
  • the presence of this second sealing element 662 ensures a seal between the pump body 60 and the cover 64, while also allowing the cover 64 to be disassembled and reassembled.
  • this second sealing element 662 does not completely encircle the pump body 60.
  • the second sealing element is not located around the entire periphery of the chamber 68, but rather on at least 60% and preferably 80% of the periphery of the chamber 68.
  • the remaining portion of the periphery is then sealed by a third sealing element 663, as will be described in more detail below, thus ensuring a complete seal between the pump body 60 and the cover 64, and therefore a seal for the chamber 68.
  • the peristaltic pump also includes a third sealing element 663.
  • This element comprises a plate through which the inlet connectors 61 and outlet connectors 62 pass.
  • the plate is made of silicone, or any other material capable of providing a seal.
  • the plate then includes two openings allowing the passage of the inlet connectors 61 and outlet connectors 62.
  • the plate is made of a material sufficiently elastic to ensure a seal around said inlet connectors 61 and outlet connectors 62.
  • the plate is in contact with the inlet connectors 61 and outlet connectors 62, the pump body 60, and also the cover 64, as can be seen in the figure. figure 7 .
  • This plate in association with the second sealing element 662 previously described, remarkably completes the sealing of the chamber 68, that is to say, completes the sealing between the cover 64 and the pump body 60, by closing the periphery of the chamber.
  • the chamber 68 is completely sealed. Consequently, if liquid were to accidentally escape from the pipe (rupture or disconnection of the deformable pipe 63), the chamber 68 would remain sealed. If the deformable tube 63 were to enter chamber 68, the liquid, usually water, would be trapped in chamber 68 and unable to escape. This results in a particularly safe peristaltic pump because it is completely sealed, meaning no liquid can escape, even if its deformable tube ruptures. The peristaltic pump of the invention can then be used in locations where the presence of any liquid is prohibited, such as in the immediate vicinity of electrical or electronic components.
  • the invention as illustrated includes another safety device, which may itself constitute an invention.
  • the pump illustrated on the figures 6 and 7 includes a drain device 67 designed to, in the event of a rupture of the deformable tube 63 of the peristaltic pump 6, drain the liquid from the chamber 68 to the outside of the peristaltic pump 6 along a controlled trajectory.
  • This safety device is particularly effective when used in conjunction with a household appliance 1 that includes a liquid drainage device 114, as detailed below.
  • the peristaltic pump 6 includes two holes 671 which form a drainage device 67 connecting the chamber 68 to the outside of the pump at a precise location, judiciously selected by the designers.
  • Each hole has a diameter of approximately 1.2 mm, corresponding to a drainage area of 2.26 mm2 .
  • the holes are spaced 2.5 mm apart.
  • the drain device 67 will then be located at a high point in the pump. If the third sealing element 663 is absent, the liquid could then flow through the gap between the pump body 60 and the inlet 61 and outlet 62 connectors. If the second sealing element 662 is absent, the liquid could also escape through the gap between the drive shaft 51 and the pump body 60, even before reaching the drain device 67. The liquid flow would then be uncontrolled, as is the case with prior art pumps in the event of a rupture of the deformable pipe.
  • sealing elements 661, 662, 663 previously described, the water cannot flow through these gaps and is therefore forced to flow through the drain device 67 and only through the drain device 67.
  • the presence of said sealing elements 661, 662, 663 makes it possible to prevent any flow of unwanted liquid, that is to say, elsewhere than through the drain device, if the latter were to become blocked or were unable to ensure a sufficient flow rate to drain the chamber quickly enough.
  • the housing 111 includes a liquid drainage device 114 designed to drain liquid from the housing 111 in the event of a leak from a liquid transport device 32, 6, 33, in this case a peristaltic pump 6 or a conduit 32, 33, and/or a liquid storage device, in this case a reservoir 3.
  • the liquid drainage device 114 is arranged so that the liquid cannot come into contact with the electrical or electronic component. More specifically, the liquid drainage device 114 includes two orifices 1141 arranged side by side. Each of the orifices 1141 passes through the housing 111, so as to put in communication between the inside of the housing 111 and the outside. Using two separate ports ensures sufficient drainage and guarantees a minimum flow rate if one of the ports 1141 becomes blocked.
  • Each orifice 1141 is a hole with a diameter approximately equal to 1.2 mm. Thus, the possible drainage area is approximately 2.26 mm2 . The holes are separated by approximately 2.5 mm.
  • the liquid drainage device 114 is located at a distance of approximately 25 mm from the edge of the first treatment surface 112, which ensures a safe distance when the water flows through the drainage device 114 and prevents the discharged liquid from coming into contact with the first treatment surface 112.
  • the liquid drainage device 114 is located opposite the second arm 12, which allows it to be concealed when the smoothing clamp is closed, thus improving the overall aesthetics.
  • the draining device 67 of the peristaltic pump 6 communicates with the discharge device 114 of the housing 111.
  • the draining device 67 is located opposite the evacuation device 114.
  • the draining device 67 is located opposite the evacuation device 114. More precisely, the draining device 67 has two holes 671, the evacuation device 114 also has two orifices 1141, each of the holes 671 belonging to the draining device 67 being arranged opposite, that is to say opposite, an orifice 1141 of the evacuation device 114.
  • the evacuation section of the drain device 67 and that of the evacuation device 114 are substantially identical and of the order of 2.26 mm 2, which guarantees the total flow of the liquid that may be in the chamber 68 without funneling.
  • the drain fittings 67 and evacuation fittings 114 are then separated by a sealing element 664, in this case an O-ring, which ensures a seal between the drain fitting and the evacuation fitting 114.
  • the sealing element 664 is held in a housing around the drain fitting. 67 and is then in contact with the housing 111 and the peristaltic pump 6, and in particular with the pump body 60.
  • the liquid in the event of a rupture of the deformable tube 63 of the peristaltic pump 6 of the household appliance 1, the liquid would then be evacuated in a controlled manner, defined by design, that is to say, in a deliberate manner, solely through the evacuation device 114, and via the draining device 67 of the peristaltic pump 6, so that the liquid cannot come into contact with any electrical or electronic component located inside the housing 111.
  • the inside of the housing 111 is protected from any potential liquid, even in the event of a failure within the peristaltic pump 6, which considerably improves the safety of the household appliance 1, both for the appliance itself (its electrical or electronic components) and for the user (risk of electrocution).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Cleaning And Drying Hair (AREA)

Claims (15)

  1. Haushaltsgerät (1), das eine peristaltische Pumpe (6) umfasst, die einen Pumpenkörper (60) mit einer Kammer (68) definiert, in der sich ein deformierbarer Schlauch (63) befindet, der dazu bestimmt ist, eine zu bewegende Flüssigkeit zu enthalten, dadurch gekennzeichnet, dass die peristaltische Pumpe (6) eine Dichtungseinrichtung (661, 662, 663) umfasst, die so ausgelegt ist, dass sie die Flüssigkeit im Inneren der Kammer (68) hält, wenn der deformierbare Schlauch (63) bricht, und dass sie eine Flüssigkeitsentleereinrichtung (67) umfasst, die so konzipiert ist, dass sie im Falle eines Bruchs des deformierbaren Schlauchs (63) der peristaltischen Pumpe (6) die Flüssigkeit aus der Kammer (68) nach außen in einer kontrollierten Bahn entleert.
  2. Haushaltsgerät (1) nach dem vorherigen Patentanspruch, wobei die Kammer (68) einen Rotor (65) umfasst, der mit dem deformierbaren Schlauch (63) in Kontakt steht, wobei der Rotor (65) mit einer Antriebswelle (51) verbunden ist, die den Pumpenkörper (60) durchquert, dadurch gekennzeichnet, dass die Dichtungseinrichtung ein erstes Dichtungselement (661) umfasst, das zwischen der Antriebswelle (51) und dem Pumpenkörper (60) angeordnet ist.
  3. Haushaltsgerät (1) nach dem vorherigen Patentanspruch, dadurch gekennzeichnet, dass das erste Dichtungselement (661) eine oder mehrere Lippen aufweist, vorzugsweise zwei Lippen.
  4. Haushaltsgerät (1) nach einem der vorherigen Patentansprüche, wobei die Pumpe eine Abdeckung (64) umfasst, die mit dem Pumpenkörper (60) zusammenwirkt, dadurch gekennzeichnet, dass die Dichtungseinrichtung ein zweites Dichtungselement (662) umfasst, das zwischen dem Pumpenkörper (60) und der Abdeckung (64) angeordnet ist.
  5. Haushaltsgerät (1) nach einem der vorherigen Patentansprüche, wobei die Pumpe einen Eingangsanschluss (61) umfasst, der dazu bestimmt ist, einen Flüssigkeitsansaugrohr (32) zu empfangen, und einen Ausgangsanschluss (62), der dazu bestimmt ist, ein Flüssigkeitsauslassrohr (33) zu empfangen, die mit dem deformierbaren Schlauch (63) verbunden sind, dadurch gekennzeichnet, dass die Dichtungseinrichtung ein drittes Dichtungselement (663) umfasst, das zwischen dem Pumpenkörper (60) und mindestens einem der Eingangsanschlüsse (61) oder Ausgangsanschlüsse (62) angeordnet ist.
  6. Haushaltsgerät (1) nach dem vorherigen Patentanspruch, dadurch gekennzeichnet, dass das dritte Dichtungselement (663) eine Platte, vorzugsweise aus Silikon, umfasst, die jedes der Eingangsanschlüsse (61) und Ausgangsanschlüsse (62) durchquert.
  7. Haushaltsgerät (1) nach Patentanspruch 5, dadurch gekennzeichnet, dass das dritte Dichtungselement (663) zwischen dem Pumpenkörper (60) und jedem der Eingangsanschlüsse (61) und Ausgangsanschlüsse (62) angeordnet ist, wobei das dritte Dichtungselement (663) zwei O-Ringe umfasst.
  8. Haushaltsgerät (1) nach einem der Patentansprüche 5 bis 7, dadurch gekennzeichnet, dass die Eingangsanschlüsse (61) und Ausgangsanschlüsse (62) in derselben Ebene angeordnet sind, die zu einer einzigen äußeren Fläche der peristaltischen Pumpe (6) gehört.
  9. Haushaltsgerät (1) nach dem vorherigen Patentanspruch, dadurch gekennzeichnet, dass die Eingangsanschlüsse (61) und Ausgangsanschlüsse (62) jeweils einen Winkel von jeweils etwa 90° aufweisen.
  10. Haushaltsgerät (1) nach einem der vorherigen Patentansprüche, dadurch gekennzeichnet, dass die Flüssigkeitsentleereinrichtung (67) mindestens ein Loch (671) umfasst.
  11. Haushaltsgerät (1) nach einem der vorherigen Patentansprüche, dadurch gekennzeichnet, dass die Flüssigkeitsentleereinrichtung (67) durch den Pumpenkörper (60) angeordnet ist.
  12. Haushaltsgerät (1) nach einem der vorherigen Patentansprüche, wobei es sich um ein Haarpflegegerät handelt.
  13. Haushaltsgerät (1) nach einem der vorherigen Patentansprüche und gemäß Patentanspruch 2 und 5, wobei das Gerät einen Elektromotor (5) und einen Tank (3) umfasst, der dazu ausgelegt ist, eine zu einer Flüssigkeitsverbrauchseinrichtung (4) zu bewegende Flüssigkeit zu enthalten, dadurch gekennzeichnet, dass der Eingangsanschluss (61) mit dem Tank (3) verbunden ist, der Ausgangsanschluss (62) mit der Flüssigkeitsverbrauchseinrichtung (4) verbunden ist, die Antriebswelle (51) mit einer Motorwelle des Elektromotors (5) verbunden ist, und die peristaltische Pumpe (6) zwischen dem Tank und der Flüssigkeitsverbrauchseinrichtung angeordnet ist.
  14. Haushaltsgerät (1) nach einem der vorherigen Patentansprüche, wobei das Gerät ein Gehäuse (111) umfasst, das die peristaltische Pumpe (6) und mindestens eine elektrische oder elektronische Komponente umfasst, dadurch gekennzeichnet, dass das Gehäuse (111) eine Flüssigkeitsablasseinrichtung (114) umfasst, die so ausgelegt ist, dass sie die Flüssigkeit außerhalb des Gehäuses (111) ableitet und so konfiguriert ist, dass die Flüssigkeit nicht mit der elektrischen oder elektronischen Komponente in Kontakt kommen kann, und dass die Flüssigkeitsentleereinrichtung (67) mit der Flüssigkeitsablasseinrichtung (114) kommuniziert.
  15. Haushaltsgerät (1) nach dem vorherigen Patentanspruch, dadurch gekennzeichnet, dass ein Dichtungselement (664) zwischen den genannten Flüssigkeitsentleereinrichtungen (67) und Ablasseinrichtungen (114) angeordnet ist.
EP23185139.5A 2018-10-22 2019-10-17 Abgedichtete peristaltische pumpe für elektrisches haushaltsgerät Active EP4249750B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1859755A FR3087503B1 (fr) 2018-10-22 2018-10-22 Pompe peristaltique etanche pour appareil electromenager
EP19789966.9A EP3870855B1 (de) 2018-10-22 2019-10-17 Abgedichtete peristaltische pumpe für elektrisches haushaltsgerät
PCT/EP2019/078176 WO2020083736A1 (fr) 2018-10-22 2019-10-17 Pompe peristaltique etanche pour appareil electromenager

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP19789966.9A Division EP3870855B1 (de) 2018-10-22 2019-10-17 Abgedichtete peristaltische pumpe für elektrisches haushaltsgerät

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EP4249750A2 EP4249750A2 (de) 2023-09-27
EP4249750A3 EP4249750A3 (de) 2023-11-15
EP4249750B1 true EP4249750B1 (de) 2026-02-04

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EP23185139.5A Active EP4249750B1 (de) 2018-10-22 2019-10-17 Abgedichtete peristaltische pumpe für elektrisches haushaltsgerät
EP19789966.9A Active EP3870855B1 (de) 2018-10-22 2019-10-17 Abgedichtete peristaltische pumpe für elektrisches haushaltsgerät

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US (1) US12276273B2 (de)
EP (2) EP4249750B1 (de)
JP (2) JP2022508891A (de)
CN (2) CN211397841U (de)
ES (1) ES2962785T3 (de)
FR (1) FR3087503B1 (de)
WO (1) WO2020083736A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3087503B1 (fr) * 2018-10-22 2021-08-27 Seb Sa Pompe peristaltique etanche pour appareil electromenager
FR3126458B1 (fr) 2021-08-27 2025-05-02 Oreal Pompe péristaltique pour appareil électroménager, en particulier pour appareil de coiffure diffusant de la vapeur telle qu’une brosse capillaire.
FR3132419B1 (fr) 2022-02-07 2025-07-25 Oreal Appareil de coiffure à diffusion de vapeur équipé d’une pompe à membrane.

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US3421447A (en) * 1966-10-26 1969-01-14 Challenge Cook Bros Inc Fluid pump
US4661045A (en) * 1980-12-22 1987-04-28 Triune Automated Painting Systems Leakage detection in remote supply painting system
JPS5859988U (ja) * 1981-10-19 1983-04-22 中部技研株式会社 真空装置付チユ−ブポンプ
DE3326784C2 (de) * 1983-07-25 1986-06-05 Fresenius AG, 6380 Bad Homburg Peristaltisch arbeitende Rollenpumpe
US8182241B2 (en) * 2005-12-20 2012-05-22 G.H. Stenner & Co., Inc. Peristaltic pumping mechanism having a removable cover and replaceable tubing, rollers and pumping mechanism
WO2010093946A1 (en) * 2009-02-12 2010-08-19 Mc3, Inc. Modular fluid pump with cartridge
FR2967017B1 (fr) 2010-11-05 2014-04-04 Seb Sa Appareil de coiffure a vapeur
FR2967018B1 (fr) 2010-11-05 2014-04-25 Seb Sa Appareil de coiffure a pompe peristaltique
FR2967020B1 (fr) * 2010-11-05 2012-12-21 Seb Sa Appareil de coiffure a vapeur compose d'une base et d'une unite portable
GB2495936B (en) * 2011-10-25 2018-05-23 Watson Marlow Ltd Peristaltic pump and pumphead therefor
US9777720B2 (en) * 2013-03-14 2017-10-03 Blue-White Industries, Ltd. High pressure, high flow rate tubing assembly and adapter for a positive displacement pump
CN203614372U (zh) * 2013-10-12 2014-05-28 施世英 一种软管泵
CN105708099B (zh) * 2016-02-04 2017-07-18 深圳市洋沃电子有限公司 一种蒸汽发生器及具有该蒸汽发生器的美发装置
CN207064212U (zh) * 2017-08-16 2018-03-02 广州极飞科技有限公司 泵体组件、泵、喷洒系统及无人机
FR3087503B1 (fr) * 2018-10-22 2021-08-27 Seb Sa Pompe peristaltique etanche pour appareil electromenager

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US20210381502A1 (en) 2021-12-09
CN111075697A (zh) 2020-04-28
JP2022508891A (ja) 2022-01-19
JP2024149606A (ja) 2024-10-18
WO2020083736A1 (fr) 2020-04-30
FR3087503B1 (fr) 2021-08-27
EP3870855A1 (de) 2021-09-01
US12276273B2 (en) 2025-04-15
CN211397841U (zh) 2020-09-01
EP4249750A3 (de) 2023-11-15
EP3870855B1 (de) 2023-08-09
EP4249750A2 (de) 2023-09-27
CN111075697B (zh) 2023-12-01
ES2962785T3 (es) 2024-03-21
FR3087503A1 (fr) 2020-04-24

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