EP3870855A1 - Pompe peristaltique etanche pour appareil electromenager - Google Patents
Pompe peristaltique etanche pour appareil electromenagerInfo
- Publication number
- EP3870855A1 EP3870855A1 EP19789966.9A EP19789966A EP3870855A1 EP 3870855 A1 EP3870855 A1 EP 3870855A1 EP 19789966 A EP19789966 A EP 19789966A EP 3870855 A1 EP3870855 A1 EP 3870855A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- peristaltic pump
- pump
- sealing element
- pump body
- 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.)
- Granted
Links
- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 98
- 239000007788 liquid Substances 0.000 claims abstract description 134
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000012530 fluid Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 206010014405 Electrocution Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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
-
- 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
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/09—Pumps having electric drive
-
- 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
Definitions
- the present invention relates to the field of peristaltic pumps used in household appliances and preferably in hairdressing devices.
- 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 hairdressing appliance, comprising a peristaltic pump as defined above.
- the transported fluid is not in contact with any moving part, since it remains contained inside the deformable pipe of the peristaltic pump, pipe which is regularly compressed by one or more rollers mounted on the rotor of the peristaltic pump, which has the effect of setting the fluid in motion.
- the fluid transport circuit is simplified, or even reduced to simply a pipe, that of the peristaltic pump.
- a peristaltic pump A large part of the benefits of using a peristaltic pump are due to the deformable hose of the pump. But, and this is also the main drawback of this type of pump, the hose is a wearing part and it is generally a part to be replaced periodically in a peristaltic pump. Such replacement is common and does not pose particular problems in industrial or medical fields where it is common to find peristaltic pumps. On the other hand, such a replacement is practically unthinkable for an application in household appliances, and in particular for hairdressing appliances, in particular taking into account the size of the components, the relatively low overall cost of these appliances, and especially of the user. who is not technically qualified to make such a replacement.
- these devices are generally electrical devices, at least insofar as they include a heating element for electrically heating a hair shaping surface, or even various electrical and electronic components. Consequently, the presence of liquid inside these devices risks destroying their electrical and / or electronic components and therefore causing a malfunction or even a total breakdown of the hairdressing device.
- the risk of electrocution for the user cannot then be totally excluded, all the more since he generally holds his devices in his hand, or even that he manipulates them in the immediate vicinity of his head, in the case hairdressing appliances. The same problems and the same risks can occur in the event of disconnection, pulling of the pump hose from a connector, for example following an overpressure due to the scaling of the device.
- the present invention aims to overcome the aforementioned drawbacks.
- An objective of the invention is to provide a peristaltic pump which is particularly safe, in particular in the event of a hose rupture.
- Another objective of the invention is to propose a peristaltic pump which is particularly compact.
- Another objective of the invention is to provide a reliable and robust peristaltic pump.
- An objective of the invention is to provide a hair styling device which is particularly safe, especially in the event of a rupture of the hose of the peristaltic pump.
- Another object of the invention is to provide a hair styling device which is particularly compact and ergonomic.
- Another objective of the invention is to propose a hairstyling device which is particularly reliable and robust.
- the objectives are achieved using 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 displaced, the peristaltic pump comprising a sealing device designed to contain the liquid inside the chamber if the deformable pipe breaks.
- a leak of the deformable pipe is meant any deterioration which could lead to a loss of tightness of said pipe, that is to say to a leak of the liquid contained in the deformable pipe. For example, this could be caused by an explosion in the pipe, a crack in the pipe, a hole in the pipe, excessive porosity in the pipe, or accidental disconnection or disconnection of the pipe.
- hose for example as a result of overpressure due to scaling of the device.
- room is meant any three-dimensional space intended to accommodate at least one element, in this case the deformable pipe of the pump.
- the liquid is contained, that is to say maintained, stored, in the pump chamber and does not spread outside the pump in the event of rupture of the deformable pipe. Consequently, a possible rupture of the hose of the peristaltic pump has limited consequences since the liquid remains contained inside the pump and does not spread outside the pump, as would normally be the case for pumps. known from the prior art. It is therefore possible to install a pump as defined by the invention in spaces where any presence of liquid is normally to be avoided, 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, said rotor is connected to a drive shaft passing through the pump body, and the sealing device comprises a first sealing element which is disposed between the drive shaft and the pump body. Consequently, the liquid, in the event of rupture of the deformable hose, cannot escape through the zone situated between the drive shaft, which is a moving moving part, and the pump body, which is a part fixed.
- the first sealing element comprises a lip seal (s), and preferably a seal with two lips.
- This type of seal and in particular the double lip seal, makes it possible to ensure a very good seal between a rotating shaft, in this case the drive shaft, against which the joint lip (s) rests, and a fixed part, in this case the pump body, in which the seal is held.
- the peristaltic pump comprises a cover cooperating with the pump body, and the sealing device comprises a second sealing element arranged between the pump body and the cover.
- the sealing device comprises a second sealing element arranged between the pump body and the cover.
- the second sealing element comprises a seal of circular section disposed at least partially on the periphery of the pump body and the cover.
- the peristaltic pump comprises an inlet connector intended to receive a suction duct of liquid, and an outlet connector intended to receive a liquid delivery conduit, connected to the deformable pipe.
- the sealing device preferably comprises 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 input or output 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, arranged at the bottom, and, even in the event of rupture of the deformable pipe, there will be no leakage of liquid at the connectors. that is to say between the connectors and the pump body or the cover for example.
- the third sealing element comprises a plate, preferably made of silicone, traversed by each of said input and output connectors. Said plate is then placed between the pump body and / or the pump cover and around at least one of the inlet or outlet connectors.
- the plate comprises two orifices, and preferably two holes, each of the orifices receiving one of the connectors.
- the third sealing element is disposed between the pump body and / or possibly the cover and each of the inlet and outlet connectors, said third sealing element comprising two O-rings.
- each connector has its own O-ring disposed between the connector and the pump body and / or the cover so as to seal the chamber at the connectors.
- the input and output connectors are arranged in the same plane belonging to one and the same external face of the peristaltic pump. This makes it possible to have a particularly compact pump and the connections of which are assembled on the same face, thus limiting the length of the conduits necessary for the departure and arrival of the pump.
- the input and output connectors each have a bend advantageously of substantially 90 °.
- Such connectors make it easier to integrate the pump by placing the latter transversely to the suction and discharge pipes, respectively at the inlet and at the outlet of the pump. It is thus possible to limit the size of the pump and liquid conduit assembly.
- the embodiments described above are perfectly compatible with each other, and other advantageous embodiments can result from their different combinations.
- the sealing device would then include said first, second and third sealing elements described above.
- the peristaltic pump for household appliances comprises a pump body defining a chamber in which there is a deformable pipe intended to contain a liquid to be moved, thus that a liquid draining device designed to, in the event of a break in the deformable pipe of the peristaltic pump, drain the liquid from the chamber to the outside of the peristaltic pump according to a controlled path.
- the liquid draining device comprises at least one hole which makes it possible to control the flow path of the liquid very economically and safely.
- controlled trajectory is meant that the place through which the liquid will drain, that is to say flow, is defined in advance, chosen by the designers. In other words, we know 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 liquid draining device comprises two holes, advantageously arranged one near the other, for example separated by a distance of between 1 mm and 5 mm, which makes it possible to increase the flow rate and therefore the speed drain.
- the presence of a plurality of holes also makes it possible to guarantee the emptying of the pump even if one of the holes were to be closed.
- the total evacuation section is thus between 2 mm 2 and 2.5 mm 2 , in order to ensure a sufficient drainage rate.
- the draining device is arranged through the pump body or through the pump cover or through the pump body and the cover.
- the emptying device can be constituted by any device passing through the pump body, or the cover or the pump body and the cover, that is to say any device capable to connect the chamber and the exterior of the pump in a place defined in advance by design, that is to say defined by the designer.
- the objective is not necessarily to conserve the liquid inside the chamber but rather to control its trajectory, that is to say to control its evacuation, having chosen and defined in advance, by design, the precise place where the liquid will have to flow. Thanks to this remarkable embodiment, it is then possible to provide, during the integration of the pump into its environment, an additional device, coming to communicate with said emptying device, for, for example collecting and storing the liquid (by means of a reservoir for example) or else drain and drain the liquid (for example by means of a pipe or a hole as will be detailed later).
- this embodiment is compatible, even advantageously complementary to the embodiments previously described.
- the combination of this emptying device and the sealing device makes it possible, quite remarkably, to perfectly secure the operation of the peristaltic pumps and to meet the most stringent standards.
- two devices then combine to, on the one hand, prevent liquid from leaking uncontrollably from the pump, and on the other hand, control the flow of the liquid, its trajectory.
- the liquid will always flow through the drain device, that is to say that the liquid will be evacuated safely at a precise place and defined at l advance in conception.
- such a construction has a very particular advantage when the pump is connected to a relatively large capacity tank, at least in relation to the quantity of liquid that the deformable pipe of the pump can contain.
- the emptying device prevents water from accumulating in the pump chamber, and therefore the pressure to increase within the chamber.
- the controlled evacuation of the liquid also makes it possible to drain, along a controlled path all of the liquid from the fluid circuit and therefore to put the system as quickly as possible in the safest possible state, that is to say free liquid.
- such a construction with the combination of the sealing device and the emptying device makes it possible to guarantee the safety of the pump if one of the devices should fail. For example, if the sealing device were to fail, for example due to excessive wear, the liquid accidentally present in the chamber would flow along a path controlled by the draining device, that is to say at a specific location known in advance. Conversely, if the emptying device was faulty, for example obstructed, then the liquid accidentally present in the chamber would remain tightly contained inside it. In other words, this construction has a double safety device: sealing device and emptying device.
- the invention also relates to a household appliance comprising a peristaltic pump in accordance with any one of the preceding embodiments.
- said household appliance forms a hairstyling appliance, in particular an appliance for shaping the hair, such as for example a straightener or a looper.
- the device comprises a first arm and a second arm hinged together by a hinge so as to form a hair shaping clamp.
- the device then forms a straightening pliers which allows great ease of use and an optimal styling result.
- the first arm comprises a reservoir and a first surface for treating hair by contact, the liquid evacuation device being situated between the reservoir and the first treatment surface.
- the arrangement of the discharge device between the reservoir and the first treatment surface makes it possible to preserve the latter from being in contact with the liquid which could accidentally be inside the arm, which prevents the liquid from coming into contact with the hair.
- the first treatment surface is a surface heated by an electric heating element (CTP for example).
- the liquid evacuation device is located at a distance between 10 mm and 50 mm from the edge of the first treatment surface, preferably between 20 mm and 30 mm. This allows in particular to maintain a safety distance from the first treatment surface and in particular from its electric heating element.
- treatment surface used previously designates any type of surface, whatever its shape, its dimensions, as long as it comes into contact with the hair at least at one point.
- the treatment surface can be continuous, for example formed by a single piece, or on the contrary discontinuous, for example formed by a plurality of pieces.
- the treatment surface can, by way of illustration and without limitation, be:
- - corrugated for example by including a succession of hollows and bumps
- said device comprises an electric motor, a reservoir intended to contain a liquid to be displaced towards a liquid consumption device, the inlet connector is connected to the reservoir, the outlet connector is connected to the liquid consumption device, l he drive shaft is connected to a motor shaft of the electric motor and the peristaltic pump is arranged between the tank and the liquid consumption device.
- the peristaltic pump comprises a liquid draining device
- said device advantageously comprises a housing comprising the peristaltic pump and at least one electrical or electronic component, the housing comprising a liquid drainage device designed to evacuate the liquid outside the housing. Said evacuation device is then arranged so that the liquid cannot come into contact with the electrical or electronic component, and said emptying device communicates with the evacuation device.
- the liquid in the event of an impromptu or accidental presence of liquid inside the pump, the liquid is quickly evacuated according to a trajectory controlled in advance by the designers and at a place precise, thus avoiding any accidental contact between the liquid and any electrical or electronic component. More precisely, the liquid is first evacuated from the pump at a precise location and defined in advance using the liquid emptying device, then evacuated from the device using the evacuation device, the latter communicating with the device pump drain.
- the emptying and evacuation devices communicate with each other by any watertight means.
- the pump emptying device can be connected to the device evacuation device by means of a pipe or else the emptying device and the evacuation device can be attached to each other. other, for example one being on top of the other.
- the liquid discharge device comprises at least one orifice, and preferably two orifices, passing through the housing.
- the opening can have any shape.
- said orifice is preferably a hole whose diameter is between 0.5 mm and 4 mm, preferably between 1 mm and 1.5 mm.
- the discharge section is advantageously between 1 mm 2 and 4 mm 2 and preferably between 2 mm 2 and 2.5 mm 2 .
- the liquid evacuation device is open from permanently with the environment, in this case, the atmosphere.
- the liquid discharge device has no plug or any other obstruction or sealing element.
- the liquid draining device is arranged through the pump body.
- the peristaltic pump comprises a cover mounted on the pump body and the liquid draining device can be arranged through the cover.
- the draining device can be constituted by any device passing through the pump body, the cover or the pump body and the cover, i.e. any device capable of connect the chamber and the exterior of the pump in a place defined in advance by design.
- the liquid draining device comprises at least one hole, said at least one orifice, and at least one hole, being arranged opposite one another, that is to say one facing the other.
- This arrangement makes it possible to have a particularly compact and inexpensive device insofar as the distance between the emptying and evacuating devices is minimized.
- a sealing element preferably an O-ring, is arranged between said emptying and evacuation devices, which makes it possible to guarantee sealing between the pump and the housing of the device, thus avoiding any risk of contact. accidental between the liquid and the electrical component (s) of the device.
- the liquid which could be inside the pump chamber in the event of rupture of the deformable pipe is directly evacuated outside the housing containing the pump, and this so considered and controlled, in particular by having defined during the design the precise place where the liquid should be evacuated.
- evacuating the liquid outside the device will alert the user, at least visually, that a malfunction has occurred inside his device. hairstyle (in the occurrence that the deformable pipe broke for example).
- FIG. 1 illustrates a hair styling device as described by the invention according to a perspective view.
- FIG. 1 illustrates the apparatus of Figure 1 in another orientation.
- FIG. 3 illustrates in perspective the first arm of the device of Figure
- FIG. 4 is a detailed perspective view of area A of Figure 3
- FIG. 5 shows the same detail A as Figure 4 but with some parts that have been hidden to see the internal components of the arm.
- FIG. 6 is a perspective view of a peristaltic pump as defined by the invention.
- FIG. 7 is an exploded view of the components of the pump of Figure 6.
- the household appliance 1 as defined by the invention is a hairdressing appliance and more precisely a straightening pliers equipped with a liquid consumption device 4. More precisely, the consumption of liquid 4 comprises a vaporization means 41, in this case a vaporization chamber, and a means 42 for diffusing the vapor thus produced, in the direction of a lock of hair.
- the diffusion means 42 may in particular be formed by a series of orifices, as illustrated, or even by a slot or a diffusion groove. Such elements are well known to those skilled in the art, and are for example detailed in patent EP 2 449 909 of the applicant.
- the household appliance 1 comprises a first arm 1 1 and a second arm 12 linked together by a hinge 13 disposed substantially at the end of each of said first arms 1 1, and second arm 12.
- the arms are movable one relative to each other in a rotational movement and more precisely of gripper.
- the first arm 11 includes a first surface for treating hair 12 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 in FIG. 2, complementary to the first treatment surface 1 12.
- the second contact treatment surface 122 is also heating .
- the hinge 13 allows the user to open the straightening pliers to introduce a lock of hair between the treatment surfaces 1 12, 122, then to close the clamp on the lock of hair to carry out the shaping, generally a smoothing.
- the household appliance 1 also comprises a liquid storage device, in this case a reservoir 3.
- a liquid storage device in this case a reservoir 3.
- the reservoir is intended for storing water.
- the reservoir can also store a cosmetic product, possibly diluted in water.
- the reservoir is integrated into the first arm 11. But it is perfectly possible, and this without departing from the scope of the invention, for the reservoir to be separate from the first arm 11 and from the second arm 12.
- the reservoir can indeed be located at a distance from the first arms 11, and second arm 12, and be for example in a remote base (that is to say located at a distance from the clamp) connected to one of the arms by a cord which can transport the liquid.
- a remote base that is to say located at a distance from the clamp
- the appliance 1 comprises a housing 1 1 1 formed by the first bottom 1 1.
- the first bottom 1 1 is formed by the first bottom 1 1.
- this is not illustrated, it is perfectly possible, without departing from the scope of the invention, for the case to be formed by the deported base mentioned previously.
- the box 1 1 1 thus forms an envelope, for example made of plastic material, containing at least one electrical or electronic component, such as for example a heating element (PTC for example), an electric motor 5, a temperature sensor, a capacitor , an electronic card, etc.
- PTC heating element
- an electric motor 5 a temperature sensor
- a capacitor a capacitor
- an electronic card etc.
- these elements are very sensitive to any contact with a liquid, and in particular water, such contact can cause their damage, even their destruction and even generate a risk of electric shock.
- the household appliance 1 comprises 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 in the first arm as can be seen in Figure 5, but it is also possible, without departing from the scope of the invention, that the peristaltic pump 6 be integrated in the remote base mentioned above.
- the peristaltic pump 6 notably comprises a pump body 60.
- An inlet connector 61 is arranged on the pump body 60 in order to connect the peristaltic pump 6 to a conduit. suction 32, itself connected to the reservoir 3.
- An outlet connector 62 is arranged on the pump body 60 in order to connect the peristaltic pump to the liquid consumption device 4, by means of a discharge conduit 33. More specifically, each of the input 61 and output 62 connectors pass through the pump body 60. Thus, part of each of the input 61, and output 62 connectors protrude outside of the pump and part of each of input 61, and output 62 connectors protrude inside the pump, i.e. - say in a chamber 68.
- the part of the inlet 61 and outlet 62 connectors projecting outside the pump is then connected respectively to the suction duct 32 and to the discharge duct 33, as can be seen in FIG. 5.
- the part of the input 61 and output 62 connectors projecting into the chamber 68 is then connected to a deformable pipe 63.
- each of the input 61 and output 62 connectors comprises a bend, preferably oriented at 90 °.
- the elbow is 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 avoids the phenomenon of untimely bending.
- the input 61 and output 62 connectors can then be positioned on the same face of the pump body 60, even if said face is of limited size.
- the input 61 and output 62 connectors can be positioned one beside the other, as illustrated, or even be in contact with each other, which makes it possible to limit the size of the peristaltic pump 6 and to simplify the routing of the suction 32 and discharge 33 conduits.
- the inlet 61 and outlet 62 connectors can, thanks to their 90 ° bend, be oriented in diametrically opposite directions , while being next to each other, which makes it possible to have a particularly simple and space-saving circuit of liquid outside the pump.
- the suction duct 32 and the discharge duct 33 are found practically aligned with each other, that is to say in the same plane and practically along the same line.
- each of these conduits enters and leaves the peristaltic pump 6 by the same face of the pump, that is to say by one and the same side. It is thus possible to position the peristaltic pump 6 in a particularly cramped place and difficult to access since it is sufficient that only one side of the pump is accessible to connect the suction 32 and discharge 33 conduits.
- the pump also includes a cover 64 cooperating with the pump body 60. More specifically, the cover 64 is mounted on the pump body 60 which makes it possible to have a pump that is easy to assemble. In particular, the assembly of the various internal components such as the components of a rotor 65 for example is facilitated.
- the peristaltic pump 6 can be dismantled and reassembled at will, without any deterioration, for example to intervene on the internal components.
- the peristaltic pump 6 is also connected to an electric motor 5 intended to set in motion the various moving parts of the peristaltic pump 6 and therefore to move the liquid from the reservoir 3 to the liquid consumption device 4.
- FIG. 7 shows the different components of the peristaltic pump 6.
- the pump body 60 forms a chamber 68, that is to say a space, a recess or a housing in which different elements are found.
- the chamber 68 is defined by the pump body 60 and is closed by the cover 64.
- the chamber thus contains a deformable pipe 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 pipe 63 is fixed and is connected on the one hand to the input connector 61 and on the other hand to the output connector 62 so as to form a loop.
- the rotor 65 is located in the center of the loop and is rotated by a drive shaft 51 passing through the pump body 60 and connected to the motor shaft of the electric motor 5.
- the rotor is guided in rotation by a bearing 645 housed in the cover.
- the pressing elements 651 such as rollers for example, then punctually punctually deformable pipe 63, and under the effect of their displacement following the rotation of the rotor 65, this created a phenomenon of aspiration but also a displacement of the liquid which is inside the deformable pipe 63.
- This operation is entirely conventional and characteristic of peristaltic pumps known to those skilled in the art, so that it is not further detailed here.
- the peristaltic pump 6 and the electric motor are both connected to a fixing plate 52 for example by means of screws 53.
- the peristaltic pump 6 comprises 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 specifically, the first sealing element 661 is a lip seal and preferably a seal with two lips. Such a seal is indeed very efficient in ensuring perfect sealing against any liquid between a rotating part, in this case the drive shaft 51, and a fixed part, in this case the pump body 60 ( or possibly the cover 64).
- the first sealing element 661 guarantees both the correct rotation of the drive shaft 51 relative to the pump body 60 (or possibly to the cover) while guaranteeing sealing between these two parts.
- the peristaltic pump 6 also comprises a second sealing element 662 disposed between the pump body 60 and the cover 64, as can be seen in FIG. 7.
- This second sealing element 662 is advantageously formed by a circular cross-section joint.
- the second sealing element 662 is then placed around the chamber 68, near the edge, that is to say 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 therefore resumes its shape.
- the second sealing element 662 almost forms a loop on itself, however the latter has two edges, that is to say that it is not closed on itself.
- the second sealing element 662 substantially takes the form of a horseshoe or even the capital Greek letter Omega.
- the presence of this second sealing element 662 thus makes it possible to ensure sealing between the pump body 60 and the cover 64, while allowing disassembly and reassembly of the cover 64.
- this second element d sealing 662 does not go all around the pump body 60.
- the second sealing element is not located on the entire periphery of the chamber 68 but on at least 60% and preferably 80% of the periphery of the chamber 68.
- the portion of the remaining periphery is then closed by a third sealing element 663, as will be more precisely described below, which ensures complete sealing between the pump body 60 and the cover 64, and therefore a seal of the chamber 68.
- the peristaltic pump also includes a third sealing element 663.
- the latter comprises a plate crossed by the inlet 61 and outlet 62 connectors.
- the plate is made of silicone, or in any other material capable of sealing.
- the plate then comprises two orifices allowing the passage of the input 61 and output 62 connectors.
- the plate is made of a sufficiently elastic material to seal around said input 61 and output 62 connectors.
- the plate is then in contact with the input 61 and output 62 connectors, of the pump body 60, but also of the cover 64 as can be seen in FIG. 7. This plate makes it remarkable, in association with the second sealing element 662 described above, to complete the sealing of the chamber 68, that is to say to complete 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 accidentally (rupture or disconnection of the deformable pipe 63) escapes from the pipe deformable 63 and ending up in room 68, the liquid, generally water, would be trapped in room 68 without being able to escape.
- This makes it possible to obtain a particularly safe peristaltic pump because it is completely sealed, that is to say one which cannot allow any liquid to escape, even in the event of a rupture of its deformable pipe. It is then possible to use the peristaltic pump of the invention in locations where the presence of liquid is prohibited, such as for example in the immediate vicinity of electrical or electronic components.
- the invention as illustrated includes another safety device, which may moreover constitute an invention as such.
- the pump illustrated in FIGS. 6 and 7 comprises a draining device 67 designed to, in the event of the deformable pipe 63 of the peristaltic pump 6 breaking, drain the liquid from the chamber 68 towards the outside of the peristaltic pump 6 along a controlled path.
- This safety device is particularly effective when it is associated with a household appliance 1 which comprises a device for discharging liquid 14, as detailed below.
- the peristaltic pump 6 comprises two holes 671 which then form a drainage device 67 bringing the chamber 68 into contact with the exterior of the pump at a precise location, judiciously selected by the designers.
- Each of the holes has a diameter of approximately 1.2 mm, which corresponds to a discharge section of 2.26 mm 2 .
- the holes are spaced 2.5 mm apart.
- the emptying device 67 By combining the emptying device 67 with the sealing elements 661, 662, 663 defined above, as illustrated, the controlled emptying of the chamber 68, after a rupture of the deformable pipe 63, only by the emptying device 67, is guaranteed whatever the orientation of the pump in space. Indeed, if the pump is oriented in accordance with Figure 6, then the liquid will naturally, by gravity, flow through the drain device 67 which is then located at a low point of the pump body.
- first sealing element 661 and the third sealing element 663 are, in this case, not necessary for proper flow only by the draining device since these elements are then located above the draining device 67
- the drain device 67 is then found at a high point of the pump. If there is no third sealing element 663, the liquid could then flow through the gap between the pump body 60 and the inlet 61 and outlet 62 connectors. In the absence of a second sealing element seal 662, 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 box 1 1 1 comprises a device for discharging liquid 1 14 designed to discharge, outside the box 1 1 1, the liquid in the event of liquid leaking from a device for transporting liquid 32, 6, 33, in this case a peristaltic pump 6 or a conduit 32, 33, and / or for storing liquid, in this case a reservoir 3.
- the liquid evacuation device 1 14 is arranged so that the liquid cannot come into contact with the electrical or electronic component. More specifically, the liquid discharge device 1 14 comprises two orifices 1 141 arranged one next to the other. Each of the orifices 1 141 crosses the housing 1 1 1, so as to put in communication inside the box 1 1 1 and outside.
- each orifice 1 141 is a hole whose diameter is substantially equal to 1 .2 mm.
- the possible discharge section is approximately 2.26 mm 2 .
- the holes are separated by about 2.5 mm.
- the liquid discharge device 1 14 is located at a distance of approximately 25 mm from the edge of the first treatment surface 1 12, which makes it possible to guarantee a safety distance during the flow of water to the through the evacuation device 1 14 and to prevent the evacuated liquid from coming into contact with the first treatment surface 1 12.
- the evacuation device 1 14 for liquid is located opposite the second arm 12 which makes it possible to hide it when the straightening pliers are closed, thus improving the overall appearance.
- the emptying device 67 of the peristaltic pump 6 communicates with the evacuation device 1 14 from the housing 1 1 1.
- the emptying device 67 is located opposite the evacuation device 1 14.
- the emptying device 67 is located opposite vis-à-vis the evacuation device 1 14.
- the emptying device 67 has two holes 671
- the evacuation device 1 14 also has two orifices 1 141, each of the holes 671 belonging to the emptying device 67 being disposed opposite, that is to say vis-à-vis, an orifice 1 141 of the discharge device 1 14.
- the discharge section of the drain device 67 and that of the discharge device 1 14 are substantially identical and of the order of 2.26 mm 2 which guarantees the total flow of the liquid which could be in room 68 without the funnel phenomenon.
- the emptying devices 67 and evacuation 1 14 are then separated by a sealing element 664 ensuring the sealing, in this case an O-ring, between the emptying device and the evacuation device 1 14.
- the sealing element 664 is held in a housing around the drain device 67 and is then in contact with the housing 111 and the peristaltic pump 6, and in particular of the pump body 60.
- the liquid in the event of a rupture of the deformable pipe 63 of the peristaltic pump 6 of the household appliance 1, the liquid would then be discharged in a controlled manner, defined by design, that is to say in a reflected manner, only by the evacuation device 114, and via the emptying 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 interior of the housing 111 is preserved from any possible liquid, and this same in case of failure within the peristaltic pump 6, which considerably improves the safety of the household appliance 1, whether for the appliance itself (its electrical or electronic components) and for the utility isator (risk of electric shock).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP23185139.5A EP4249750A3 (fr) | 2018-10-22 | 2019-10-17 | Pompe peristaltique etanche pour appareil electromenager |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1859755A FR3087503B1 (fr) | 2018-10-22 | 2018-10-22 | Pompe peristaltique etanche pour appareil electromenager |
PCT/EP2019/078176 WO2020083736A1 (fr) | 2018-10-22 | 2019-10-17 | Pompe peristaltique etanche pour appareil electromenager |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP23185139.5A Division EP4249750A3 (fr) | 2018-10-22 | 2019-10-17 | Pompe peristaltique etanche pour appareil electromenager |
Publications (2)
Publication Number | Publication Date |
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EP3870855A1 true EP3870855A1 (fr) | 2021-09-01 |
EP3870855B1 EP3870855B1 (fr) | 2023-08-09 |
Family
ID=65685596
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19789966.9A Active EP3870855B1 (fr) | 2018-10-22 | 2019-10-17 | Pompe peristaltique etanche pour appareil electromenager |
EP23185139.5A Pending EP4249750A3 (fr) | 2018-10-22 | 2019-10-17 | Pompe peristaltique etanche pour appareil electromenager |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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EP23185139.5A Pending EP4249750A3 (fr) | 2018-10-22 | 2019-10-17 | Pompe peristaltique etanche pour appareil electromenager |
Country Status (7)
Country | Link |
---|---|
US (1) | US20210381502A1 (fr) |
EP (2) | EP3870855B1 (fr) |
JP (1) | JP2022508891A (fr) |
CN (2) | CN211397841U (fr) |
ES (1) | ES2962785T3 (fr) |
FR (1) | FR3087503B1 (fr) |
WO (1) | WO2020083736A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3087503B1 (fr) * | 2018-10-22 | 2021-08-27 | Seb Sa | Pompe peristaltique etanche pour appareil electromenager |
FR3126458A1 (fr) | 2021-08-27 | 2023-03-03 | L'oreal | Pompe péristaltique pour appareil électroménager, en particulier pour appareil de coiffure diffusant de la vapeur telle qu’une brosse capillaire. |
FR3132419A1 (fr) | 2022-02-07 | 2023-08-11 | L'oreal | Appareil de coiffure à diffusion de vapeur équipé d’une pompe à membrane. |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3421447A (en) * | 1966-10-26 | 1969-01-14 | Challenge Cook Bros Inc | Fluid pump |
DE3326784C2 (de) * | 1983-07-25 | 1986-06-05 | Fresenius AG, 6380 Bad Homburg | Peristaltisch arbeitende Rollenpumpe |
US20100209263A1 (en) * | 2009-02-12 | 2010-08-19 | Mazur Daniel E | Modular fluid pump with cartridge |
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 |
FR2967017B1 (fr) | 2010-11-05 | 2014-04-04 | Seb Sa | Appareil de coiffure a vapeur |
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***及无人机 |
FR3087503B1 (fr) * | 2018-10-22 | 2021-08-27 | Seb Sa | Pompe peristaltique etanche pour appareil electromenager |
-
2018
- 2018-10-22 FR FR1859755A patent/FR3087503B1/fr active Active
-
2019
- 2019-10-17 EP EP19789966.9A patent/EP3870855B1/fr active Active
- 2019-10-17 EP EP23185139.5A patent/EP4249750A3/fr active Pending
- 2019-10-17 US US17/287,813 patent/US20210381502A1/en active Pending
- 2019-10-17 JP JP2021546465A patent/JP2022508891A/ja active Pending
- 2019-10-17 ES ES19789966T patent/ES2962785T3/es active Active
- 2019-10-17 WO PCT/EP2019/078176 patent/WO2020083736A1/fr active Application Filing
- 2019-10-21 CN CN201921765729.2U patent/CN211397841U/zh active Active
- 2019-10-21 CN CN201911000545.1A patent/CN111075697B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
WO2020083736A1 (fr) | 2020-04-30 |
US20210381502A1 (en) | 2021-12-09 |
CN211397841U (zh) | 2020-09-01 |
FR3087503A1 (fr) | 2020-04-24 |
EP4249750A3 (fr) | 2023-11-15 |
FR3087503B1 (fr) | 2021-08-27 |
CN111075697A (zh) | 2020-04-28 |
EP3870855B1 (fr) | 2023-08-09 |
ES2962785T3 (es) | 2024-03-21 |
EP4249750A2 (fr) | 2023-09-27 |
JP2022508891A (ja) | 2022-01-19 |
CN111075697B (zh) | 2023-12-01 |
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