JP2020525701A - fan - Google Patents

Abstract

The fan includes a body (12) that is a body (12) that has a vertical deployment to a support base (18) that is positioned in use and defines an internal housing compartment (13). The fan is an air suction and distribution unit (27) arranged inside the compartment (13) and cooperating with an opening (27) formed on the body (12) to take in air from outside the body (12). 14) and at least one longitudinal opening (16) for discharging an air stream (Wo) outward. The fan also includes a flow path forming element (20) located near at least one longitudinal opening (16).

Description

The present invention relates to a fan that can be used in a domestic or public enclosed area to produce a ventilation or conditioned air flow for the ambient environment.

In the following, the term fan means in a broad sense any device capable of providing ventilation, air conditioning, cooling, heating, thermal ventilation, dehumidification or air purification.
Of the air, which is configured substantially cylindrically and includes a containment structure for containing mechanical components that produce a flow of ventilation or air-conditioning air, and one or more outlet openings through which the flow is discharged into the room. Fans for rooms are known, which have areas for discharging the flow.

In the most common and popular solution, the outlet openings are generally arranged so that they are visible in the front of the structure of the fan, and in many cases technical components such as ventilation blades and/or optionally heating means. Is partially visible.

This can have an unpleasant aesthetic impact on the fan, prevent the formation of a clean and unobstructed visible profile, and can detract from the quality of the fan itself.
Portable fans are also known that do not have internal components visible or partially visible, or have no ventilation blades, and utilize the Coanda effect to direct a regulated flow to the user.

One drawback of known fans is that the air flow reaching the user has a temperature that is generally different from the desired temperature, in particular it is usually warmer in the case of cooling action and of heating function. In some cases, it is colder, which results in user discomfort.

In particular, one drawback of the known fan is that it has to be heated to a higher temperature or cooled to a lower temperature in order to supply the user with a flow of air at the desired temperature, which results in , Energy consumption is to increase.

Another drawback of prior art fans is that the air entering the fan is drawn from a lower area where the motor resides, substantially coincident with or close to the base portion of the fan itself.
In this way, in addition to sucking in the air present in the room, the fan also sucks in greater amounts of dust present on the base surface on which the fan is placed.

Moreover, it is disadvantageous if the room or space is warmed. Because the air taken in near the ground is generally below the average temperature of the room itself, more energy is needed to warm the airflow to ensure a satisfactory temperature condition for the user. Because it is done.

Examples of known fans are described in, for example, (Patent Document 1), (Patent Document 2), and (Patent Document 3).
(Patent Document 1) is provided with a base portion, a main body including an impeller, and an annular nozzle which is arranged above the main body and through which air is discharged at an inner periphery thereof, and is defined by first and second plates. A fan including an annular blower is described. The air is sucked into the body below the blower and heated by the heating surface located on the blower, and finally on the annular surface of the blower located inside the ring in the direction facing the front of the fan. It is discharged from the annular outlet nozzle in a contact state. In the solution described in US Pat. No. 6,037,639, the air flow in contact with the outer annular surface of the blower has about the same temperature as the air flow inside it.

In the solution described in US Pat. No. 6,037,049, the heating surface is arranged in direct contact with the first and second plates, a heating layer suitable for converting electrical energy into heat energy, and optionally a heating layer. It includes an inner protective layer against heat radiation and a barrier layer on the side in contact with one or the other plate, the barrier layer only having the function of preventing the heating layer from overheating the associated plate. And prevent safety issues for users who may be burned due to possible damage to the plates and high temperatures. In the solution provided in US Pat. No. 6,096,097, in fact, the flow of emitted air remains adjacent to the annular surface of the blower, which corresponds only to the short initial segment downstream of the outlet nozzle, where: No heating element or barrier material is provided and is then separated from the annular surface and carried substantially toward the central common area.

US Pat. No. 6,037,049 describes a fan including a base and an air outlet device connected to the top of the base, having an annular shape and having a heating element disposed therein. The air flow exiting the air outlet device has about the same temperature as the air flow therein. The solution described in US Pat. No. 6,037,037 has a heating element for heating the flow of air in the outlet device more quickly, on the one hand, and for preventing the outlet device from being damaged by high temperatures, on the other hand. Correspondingly, it is provided to insert a reflector plate inside the outlet device.

(Patent Document 3) describes a fan including a base and a nozzle having an annular shape attached to the base, and an inner circumference of the ring is arranged corresponding to a mouth portion for discharging air. The outgoing airflow, including the Coanda surface, is directed at it. In the solution described, the Coanda surface is defined by a plate having a high thermal conductivity so that the outgoing air flow has substantially the same temperature as the air flow inside the annular nozzle.

The above solution is not able to obtain an air flow with a single compact, uniform front surface or to improve the energy efficiency of the fan to provide the air flow at the desired temperature. Furthermore, in these solutions, the heating element is placed in direct contact with or in close proximity to the outer surface of the fan, which may present a safety issue for the user.

Korean Published Patent No. 2012-0066834 International Publication No. 2013/185387 Australian Patent Application Publication No. 2012200112

One object of the present invention is to provide an improved fan as compared to fans known in the art.
Another object of the present invention is to provide a fan with high energy efficiency.

One object of the present invention is to provide a fan that returns a dispersed flow of air at a uniform temperature and can guarantee maximum comfort for the people in the room in which it is located.
Another object is to provide a fan with minimal and less frequent maintenance interventions.

Another object of the invention is to define a closed profile with high aesthetic value, a front surface without discontinuities, and an opening for access to the internal area where the functional components of the fan reside. It is to provide a fan to do.

Another object of the present invention is to provide a fan that allows the user to adjust the area in which they are located in the best possible way.

The Applicant has devised, tested and embodied the present invention in order to overcome the shortcomings of the state of the art and to obtain these and other objects and advantages.
The invention is set forth and characterized in the independent claims, while the dependent claims describe other features of the invention or variants of the main inventive idea.

In accordance with the above objectives, the present invention relates to a fan configured to condition a room by ejecting a stream of air at a predetermined temperature and velocity.
According to some embodiments, the fan comprises a cylindrical body and a body having a vertical deployment to a support base in which it is located in use, said body comprising an inner housing compartment. Define.

According to some embodiments, the fan includes an air suction and distribution unit located inside the body, which cooperates with an opening formed in the body to direct air from outside the body itself. Take in and release to the outside.

According to one aspect of the invention, a fan has at least one longitudinal opening with a vertical deployment during use and for discharging an air flow towards the outside, and at least one longitudinal opening. Included is a flow path forming element disposed proximate to the opening and cooperating with the longitudinal opening to direct the flow of air exiting the longitudinal opening to the room or area to be regulated.

According to some embodiments, the longitudinal opening is located in the rear of the fan during use, which is opposite the front of the fan located towards the area to be adjusted during use, The flow path forming element is configured to redirect the air flow such that the air flow is carried along the outer surface of the body and toward the front surface of the fan.

Due to the cylindrical shape of the body, which has a substantially circular cross section or in each case a curve, and because of the cooperation of the longitudinal openings and the flow-path forming elements, the regulated flow of air is Flowing in substantial contact with the outer surface of the body over a segment that extends over most of the peripheral extension.

The regulated air flow exiting the longitudinal openings on either side of it, in fact, corresponds to the front of the fan, from the respective introduction edge substantially defined by the position of the longitudinal extension itself. Stays along the outer surface of the body up to their respective separated edges, so that the two air flows exiting the longitudinal opening in opposite directions merge and coordinate with a common uniform front. Is directed to the room.

According to a possible variant embodiment, two longitudinal openings arranged on opposite sides of the body can be provided, each of which allows the flow of air along the part of the outer surface of the body of the fan. Cooperates with respective flow path forming elements configured to carry to the front.

According to some embodiments, the fan modifies the state of the flow of air distributed by the air suction and distribution unit, imparts temperature and/or humidity characteristics, and is defined within the regulated area. Also included is an adjusting device configured to define the effect.

The conditioning device is arranged inside the body between the air suction and distribution unit and the at least one longitudinal opening, whereby a regulated flow of air is emitted outside the body.

According to some embodiments, the adjustment device is located in a substantially central region of the body, spaced from the inner surface of the body.
According to some embodiments, the conditioning device is connected to the longitudinal opening by a flow path configured to separate the aspirated air flow from the conditioned air flow.

According to one aspect of the invention, the fan is provided with thermal insulation means, the thermal insulation means being at least associated with the inner surface of the body opposite the outer surface in contact with the conditioned air flow and in at least one longitudinal direction. It is configured to prevent or at least limit the initiation of heat exchange between the regulated flow along the outer surface and the inside of the body itself through the opening and out of the body.

According to some embodiments, the insulation means extend from the lead-in edge towards the front of the fan.
According to some embodiments, the thermal insulation means extend over most of the segment included between the lead-in edge and the separating edge.

In this way, the air sucked in by the suction and distribution unit in the internal cavity of the body (while depending on whether the temperature of the conditioned stream is below or above room temperature B) prevent adding or removing heat in some way to/from the conditioned air stream flowing along the outer surface of the body.

In particular, in the fan according to the invention, the thermal insulation means advantageously prevent heat exchange occurring from the outside to the inside of the body and vice versa, so that the regulated flow emitted by the fan is at the front of the fan It maintains the desired temperature in its path towards and thus towards the user, thus improving the overall efficiency of the fan.

According to some embodiments, the insulating means may include a layer or panel of barrier material placed in contact with the inner surface of the body.
According to another embodiment, the barrier material covers the inner surface of the body in a region having a longitudinal extension corresponding to the longitudinal extension of the at least one or more longitudinal openings.

According to other embodiments, the thermal insulation means may also include a layer or panel of reflective material to minimize absorption of the conditioned stream of thermal radiation.
According to some embodiments, the heat insulating means may be applied to the body or the flow path forming element by mechanical attachment, structural integration, application of surface finishing or similar or equivalent techniques.

These and other features of the invention will be apparent from the following description of some embodiments, given by way of non-limiting example, with reference to the accompanying drawings.

1 is a front view of a fan according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view taken along the line II-II in FIG. 1. FIG. 3 is a cross-sectional view of the fan taken along the section line III-III in FIG. 1. FIG. 3 is a sectional view of a fan according to a modified embodiment of the present invention, taken along section line III-III in FIG. 1.

To facilitate understanding, the drawings use the same reference numbers, where possible, to identify the same common elements. It is understood that elements and features of one embodiment may be conveniently incorporated into other embodiments without further explanation.

1-4, the embodiments described herein are for conditioning a room, i.e., for ventilation, cooling, heating, thermal ventilation, dehumidification or decontamination of air at ambient temperature. , Particularly to a fan 10 that may be used in a closed room.

The fan 10 includes a body 12 that preferably extends perpendicular to a support base 18 that can be placed therein in use.
According to some embodiments, the body 12 has a substantially cylindrical shape with a preferably cylindrical or curvilinear cross section, which may be substantially constant or variable along its longitudinal deployment.

According to some embodiments, the body 12 has a substantially hollow cylindrical shape.
The body 12 defines a housing compartment 13 therein for the functional components of the fan 10.

According to some embodiments, the body 12 has a tubular shape and is provided with an outer surface 22 and an inner surface 23 opposite the outer surface 22 that defines the compartment 13.
According to some embodiments, the body 12 is provided with inlet/outlet openings 16, 27 for air.

According to some embodiments, the fan 10 includes a suction and dispensing unit 14. A suction and distribution unit 14 is arranged in the compartment 13 inside the body 12 and cooperates with the air inlet/outlet openings 16, 27 to suck air from the outside of the body 12 itself and discharge it outside.

According to some embodiments, the fan 10 also includes a conditioning device 28. The conditioning device 28 modifies the state of the air flow Wi sucked by the suction and distribution unit 14 to provide a temperature and/or humidity characteristic, such as to define a constant effect in the area to be adjusted. Is configured.

The regulating device 28 is arranged inside the body 12 between the suction and dispensing unit 14 and the at least one longitudinal opening 16, whereby the air flow Wo, in particular the regulated air flow, is adjusted. Is released to the outside of.

Thus, in general, when the air conditioner 28 functions, the drawn air flow Wi in the body 12 has a different temperature than the temperature of the outgoing air flow Wo, eg the fan 10 is used for heating. Sometimes higher, or lower if the fan is used for cooling.

According to some embodiments, the conditioning device 28 may include one or more of a heating device, a cooling device or a dehumidifying device.
Here and hereinbelow, the term "conditioned" generally refers to a stream of air having a different temperature, humidity or velocity than ambient air, such as a stream of heated or cooled air, a stream of dehumidified air. Or, more specifically, means a flow of air given a particular velocity.

According to some embodiments of the present invention, the fan 10 has a longitudinal opening 16 with a vertical deployment for the discharge of the regulated flow Wo and a regulated flow exiting the body 12. A flow path forming element 20 cooperating with at least one longitudinal opening 16 to redirect Wo to the front of the fan 10.

According to some embodiments, at least one opening 16 is arranged at the rear of the body 12, i.e. on the opposite side to the room to be conditioned, in the use of the fan.
In general, the terms "rear" and "front region" are only intended to define a functional relationship between these two parts that is substantially opposite to each other, and in use, the front generally faces the user. ..

According to a possible variant embodiment, two longitudinal openings 16 formed on both sides of the body 12 can be provided, each of the longitudinal openings 16 cooperating with a respective flow channel forming element 20, Carry the regulated flow Wo towards the front.

According to some embodiments, the flow path forming element 20 is configured to allow a conditioned air flow Wo along the outer surface 22 of the body 12. In other words, the flow path forming element 20 can redirect the conditioned air flow Wo exiting the longitudinal opening 16, so that the conditioned air flow Wo is conditioned due to the Coanda effect. The profile of the outer surface 22 of the body 12 is followed for at least the particular segment before reaching the area to be treated.

According to some embodiments, the conditioned air flow Wo remains substantially along the outer surface 22 of the body 12 for the majority of the perimeter extension of the body 12.
In particular, the conditioned air flow Wo emerging from both sides of the longitudinal opening 16 corresponds to the front of the fan, starting from the introduction edge B1 substantially defined by the position of the longitudinal opening 16. It remains along the opposite wall of the outer surface 22 of the body 12 until it reaches the arranged separating edge B2. Downstream of the separating edge B2, the two air streams on one side and on the other side of the body 12 join together to form a common uniform air front.

For example, according to some embodiments described with reference to FIGS. 3 and 4, the flow path forming element 20 has an active surface 20a against which a regulated flow Wo exiting the longitudinal opening 16 is in use. , A non-active surface 20b facing the outside of the fan 10.

According to another embodiment, in cooperation with the outer surface 22, the flow-path forming element 20 is arranged to determine a minimum passage section 21 of the conditioned air flow Wo exiting the compartment 13.
According to some embodiments, the one or more longitudinal openings 16 may extend only to a portion of the body 12, eg, in a central region along its longitudinal extension.

According to some embodiments, air enters the interior of body 12 through through entry hole 27.
According to some embodiments, the through-entrance hole 27 may be formed at least partially above the longitudinal opening 16 in the top and/or upper sidewalls of the body 12.

According to a possible embodiment, the suction and dispensing unit 14 can advantageously be arranged above the longitudinal opening 16.
According to another embodiment, the suction and dispensing unit 14 is connected to the impeller 15 with the blades appropriately oriented to determine the intake of air into the body 12 from the outside and its inlet. Drive member 17 can be included.

According to some embodiments, the suction and dispensing unit 14 can be oriented such that the axis of rotation of the impeller 15 is substantially parallel to the axis of deployment of the longitudinal opening 16.
According to a possible solution, the body 12 can have a continuous surface corresponding to the front of the fan 10.

In this way, the body 12 has a curved cross section, i.e. a cross section without sharp edges, and uses the principle of the Coanda effect to pass the air flow W along the outer surface 22. It is advantageously possible to let it exit the longitudinal opening 16.

According to a preferred embodiment, the body 12 can be configured to have a generally cylindrical shape throughout its height.
According to one embodiment, as shown by way of example in FIG. 1, the body 12 may have a taper shape in at least a portion of its vertical deployment.

In particular, according to an advantageous embodiment, the body 12 has, in its height, a narrowed portion of cross section which substantially corresponds to the longitudinal opening 16.
In one form of the invention, the outer surface 22 has a rounded shape with substantially no discontinuities so that the conditioned flow Wo exiting the body 12 is substantially at the outer surface 22 at least up to the separation edge B2. While being carried along, it is carried towards the front and then towards the room to be ventilated or regulated.

Within the field of the invention, a rounded shape can be defined by a substantially circular, regular elliptical, drop-shaped or flat part, i.e. significant fluctuations in flow development or flow development. Obtain a profile of the body 12 suitable for carrying the air flow W along at least some segments along the outer surface 22 without causing disturbing disturbances, turbulences, discontinuities or other factors. And so on.

According to some embodiments, one or more longitudinal openings 16 in body 12 may be defined by bending respective edges 25a, 25b of body 12 towards the inside of compartment 13. ..

According to some embodiments, the edges 25a, 25b extend towards the inside of the compartment 13 over at least the segments substantially parallel to one another and are adjusted between them towards the longitudinal opening 16. An outlet channel 29 for the flow Wo is defined.

According to some embodiments, the adjusting device 28 is arranged in a central region of the body 12, remote from the inner surface 23 of the body 12 and is connected to the longitudinal opening 16 by means of an outlet channel 29 and is thus aspirated. Functioning as a separating element between the air flow Wi and the regulated flow Wo.

The compartment 13 directs, inside the fan 10, a flow Wi of air sucked by the suction and distribution unit 14 from the inlet hole 27 to a regulating device 28 and then discharges the regulated flow Wo from the longitudinal opening 16. To enable.

According to one aspect of the invention, the fan 10 is provided with thermal insulation means 40 connected to the body 12, the thermal insulation means 40 passing adjacent the flow path forming element 20 and the outer surface 22 of the body 12. It is configured to prevent or at least limit the initiation of heat exchange between the stored flow Wo and the inside of the body 12 itself.

In particular, the adiabatic means 40 has the function of preventing the suctioned air flow Wi in the body 12 from affecting the temperature of the regulated flow Wo passing towards the front of the fan 10.

By way of example, the body 12 can be made, for example, of a plastic material having a thermal conductivity of about 0.15 W/mK and can be placed in a room that is adjusted to have an average temperature Ta during use.

In the compartment 13, the inlet air flow Wi upstream of the regulator 28 is characterized by a first temperature T1 and the regulated flow Wo downstream of the regulator 28 is characterized by a second temperature T2. To be

Outside the body 12, at the front of the fan 10, the regulated flow Wo maintained along the outer surface 22 has a third temperature T3.
In particular, corresponding to the inlet edge B1, the conditioned flow Wo has a second temperature T2 and downstream of the separating edge B2 a third temperature T3.

When the regulator 28 is inactive or absent and the fan 10 is in a ventilation mode of operation, generally the first temperature T1, the second temperature T2 and the third temperature T3 are substantially equal to the ambient temperature Ta. Equal to each other

-T1≈Ta,
-T2≈T1,
-T2 ≈ T3.

If the regulator 28 is a heating element and thus the fan 10 is a fan heater in heating mode, the relationship between the temperatures changes as follows.
-T1≥Ta,
-T2>T1,
-T2 ≥ T3.

Since the second temperature T2 is higher than the ambient temperature Ta, the first heat flow Qc is established from the flow channel forming device toward the outside of the main body 12, especially through the flow channel forming element 20.
The substance of the first heat flow Qc is as a function of the physical properties of the flow path forming element 20 itself as well as its geometric properties and the difference between the second temperature T2 of the regulated flow Wo at the outlet and the ambient temperature Ta. It can change.

Similarly, because of T2>T1, the regulated flow Wo of the outlet channel 29 exchanges the second heat flow Qb at the edge towards the inner compartment 13, ie through the edges 25a, 25b, its characteristic Depends on the physical properties of the material of which the outlet channel 29 itself is made, in this case the material of the body 12.

Similarly, the conditioned flow Wo along the outer surface 22 exchanges a third wall heat flow Qp with the inner compartment 13 through the wall of the body 12 depending on the physical properties of the material of the body 12.
In short, the three heat flows Qc, Qb, Qp can be understood as heat losses. This is because they contribute to the removal of heat from the regulated flow Wo towards the regulated region and thus reduce the temperature T3 of the regulated flow Wo near the front of the fan 10.

Due to the presence of the heat insulating means 40, the fan 10 according to the invention minimizes, if not excludes, the heat flows Qc, Qb, Qp, thereby making it possible to obtain the following relationships between temperatures:
-T1≈Ta,
-T2>>T1,
-T2 ≈ T3.

Even though this example was made with the heating regulator 28 in mind, in the case of the cooling regulator 28, the relationship between the temperatures Ta, T1, T2, T3 and the directions of the heat flows Qc, Qb, Qp are substantially mirror. It is clear that

According to some embodiments, the thermal insulation means 40 comprises at least one of the blocking materials 41, 42, 43 associated with the body 12 and/or the flow path forming element 20 corresponding to the passage area of the regulated flow Wo. Includes layers, or panels, or films.

According to a possible solution, the first layer or panel of barrier material 41 can be placed inside the compartment 13 in contact with the inner surface 23 of the body 12.
According to some embodiments, the first layer or panel of barrier material 41 has at least a portion having a longitudinal extension corresponding to the longitudinal extension of the one or more longitudinal openings 16. Can be extended.

According to other embodiments, the first layer or panel of barrier material 41 may extend at least from the leading edge B1 towards the front of the fan 10.
According to another variant embodiment, the first layer or panel of barrier material 41 may at least partly extend from the introduction edge B1.

According to another variant, the first layer or panel of barrier material 41 can extend at least over the majority of the segments comprised between the introducing edge B1 and the separating edge B2.

According to a variant embodiment, the first layer or panel of barrier material 41 extends at least over the segments comprised between the introduction edge B1 and the separating edge B2 on each side of the body 12.

According to other embodiments, the first layer or panel of barrier material 41 can extend across the inner surface 23 of the body 12.
In this way, the aesthetic value of the fan 10 itself is maintained and at the same time the initiation of the wall heat flow Qp is prevented, at least limited or vice versa, so that the regulated flow Wo emitted by the fan 10 is reached. Maintains the desired temperature in its path towards the front of the fan 10 and thus towards the user.

The first layer or panel of barrier material 41 makes it possible to maintain T3≈T2, ie the temperature of the regulated flow Wo downstream of the separation point B2 is dependent on the longitudinal opening 16 and the introduction edge B1. Is approximately equal to the temperature of the regulated flow Wo corresponding to

According to some embodiments, the barrier material 41 of the first layer or panel can have a low thermal conductivity, for example less than 0.15 W/mK.
According to a possible solution, the barrier material 41 of the first layer or panel can have a thermal conductivity of less than 0.10 W/mK.

According to other embodiments, the barrier material 41 of the first layer or panel can have a thermal conductivity of less than 0.05 W/mK.
According to another embodiment, a second layer or panel of barrier material 42 is provided on the non-active surface 20b of the flow channel forming element 20 to prevent heat flow Qc of the flow channel forming device from occurring through the flow channel forming device. Can be applied.

In this way, the regulated air flow Wo inside the body 12 is unaffected by ambient temperature.
According to another embodiment, a third layer or panel of barrier material 43 is applied to the edges 25a, 25b defining the outlet channel 29 to prevent the edge heat flow Qb from occurring therethrough. You can

According to some embodiments, a third layer or panel of barrier material 43 is exited to prevent possible heat exchange between the conditioned air flow Wo and the aspirated air flow Wi. It can be arranged at the edges 25a, 25b of the outlet channel 29, which face the inside of the channel 29 itself.

According to some embodiments, the second layer or panel of barrier material 42 and/or the third layer or panel of barrier material 43 has a similar thermal conductivity to the first layer or panel of barrier material 41. Can have the following characteristics:

According to another embodiment, the thermal insulation means 40 are arranged along the path of the conditioned flow Wo and are made of a reflective material 45 arranged to minimize the absorption of the thermal radiation emitted by the path. It may also include at least one layer or panel of

According to a possible solution, a layer or panel of reflective material 45 applied to the active surface 20a of the flow path forming element 20 is provided to reflect the thermal radiation of the conditioned flow Wo exiting the longitudinal opening 16. can do. In this way, in the case of heating, the layer or panel of reflective material 45 contributes to an increase in the temperature T2 of the regulated flow Wo and thus an increase in the efficiency of the fan 10.

According to a possible embodiment, the layer or panel of reflective material 45 has a thermal reflection coefficient of greater than 0.7.
According to a possible variant embodiment, the layer or panel of reflective material 45 has a heat reflection coefficient higher than 0.8.

According to another variant, the layer or panel of reflective material 45 has a thermal reflection coefficient higher than 0.95 or possibly close to 1, ie it flows over the outer surface 22 of the body 12. It reflects almost completely the incident thermal radiation of the generated stream Wo.

By reflection coefficient is meant a dimensionless index that indicates the ratio of the intensity of radiation reflected by a surface to the intensity of radiation incident on the same surface.
Possible non-limiting examples of barrier materials 41, 42, 43 can be, for example, foamed plastic, airgel or the like.

As is known from the state of the art, airgels are gel-like mixtures, which consist of solid substances and gases, leading to solid foams with specific properties, including high barrier capacity. Moreover, airgel is a very resistant material and can be easily manufactured in the form of thin, flexible films.

A possible non-limiting example of the reflective material 45 can be, for example, a metallic material such as aluminum or steel or alloys thereof.
According to other embodiments, the conductive and reflective properties of these materials make it possible to make very thin layers or panels, which do not interfere with the components of the fan 10 in the compartment 13. Can be easily inserted into.

According to some embodiments, for example, the total thickness of the barrier material 41, 42, 43 can be about 1-10 mm for foamed plastic or airgel.
According to a possible variant, the total thickness of the reflective material 45 can be about 0.1-1 mm for metallic materials.

Since these thicknesses are negligible with respect to the wall thickness of the body 12 and the flow path forming element 20, the heat insulating means 40 can easily be applied to one or the other without affecting the shape and structural resistance of the fan 10. can do.

Further, the heat insulating means 40 is applicable only to the regions affected by the flow and passage of the regulated flow Wo, and since the thickness is extremely reduced, the increase in the manufacturing cost of the fan 10 is neglected. You can

According to some embodiments, the layers or panels of barrier material 41, 42, 43 or reflective material 45 are mechanically attached using, for example, grids, glues, adhesives or other attachment elements such as screws or pins. Can be applied by.

According to other embodiments, the layers or panels of blocking material 41, 42, 43 or reflective material 45 may be applied by structural integration, for example during the manufacturing process of the fan 10.
According to other embodiments, the layer or panel of barrier material 41, 42, 43 or reflective material 45 can be applied by applying a surface finish such as spray, varnish or paint.

It will be apparent that modifications and/or additions of components may be made to fan 10 as previously described without departing from the field and scope of the present invention.
For example, a layer or panel of barrier material 41, 42, 43 may be of equal or different thickness and material to one or more of body 12, flow path forming element 20 or outlet flow path 29, and may be of a particular thickness. They can be combined and applied in the most appropriate way depending on the requirements and the overall shape of the fan 10 itself.

Also, although the present invention has been described with reference to some specific examples, those skilled in the art will appreciate that fan 10 having the characteristics set forth in the appended claims and thus all that is covered by the scope of protection defined thereby. It is also clear that many other equivalent forms of can be reliably achieved.

Claims (13)

A fan comprising a body (12) having a vertical deployment relative to a support base (18) positioned in use and defining an inner housing compartment (13),
An air suction and distribution unit (14) arranged inside the compartment (13) and cooperating with an opening (27) formed in the body (12) for removing air from the outside of the body (12). ), and a regulator (28) configured to thermally modify the state of the flow of air distributed by the suction and distribution unit (14),
During use, at least one longitudinal opening () having a substantially vertical expansion for the outward discharge of a conditioned air flow (Wo), located in the rear region of the body (12). 16),
Positioned in close proximity to the at least one longitudinal opening (16) and determining an outlet for the conditioned air flow (Wo) through the at least one longitudinal opening (16). A flow path forming element (20) cooperating with said at least one longitudinal opening (16) for
Thereby, the conditioned air flow (Wo) is carried along the outer surface (22) of the body (12) and towards the front of the fan, the at least one longitudinal opening (16). Substantially in contact with the outer surface (22) between the lead-in edge (B1) defined by the position of and the separating edge (B2) located in the front region of the fan opposite the rear region. Is still
The fan is provided with a heat exchange between the conditioned air flow (Wo) exiting the body (12) through the at least one longitudinal opening (16) and the body (12) itself. Thermal insulation means (40) configured to prevent or at least limit initiation is provided,
The heat insulating means (40) is at least associated with an inner surface (23) of the body (12) opposite the outer surface (22) in contact with the conditioned air flow (Wo) and the lead-in edge. A fan, characterized in that it extends from (B1) towards the front of the fan. 2. The thermal insulation means (40) according to claim 1, characterized in that it extends at least over the majority of the area contained between the introduction edge (B1) and the separation edge (B2). Fan of. The thermal insulation means (40) is characterized in that it extends over a region having a longitudinal extension which substantially corresponds to the longitudinal extension of the at least one longitudinal opening (16). The fan according to Item 1 or 2. Any of claims 1 to 3, characterized in that the heat insulating means (40) comprises a layer or panel of barrier material (41) arranged to contact the inner surface (23) of the body (12). The fan according to item 1. The heat insulating means (40) is directed toward the outside of the fan and is inactive of the flow path forming element (20) opposite the active surface (20a) in contact with the conditioned air flow (Wo). Fan according to any one of claims 1 to 4, characterized in that it comprises a layer or panel of blocking material (42) arranged in contact with the face (20b). Said adjusting device (28) being positioned in a region substantially central to said body (12) and being connected to said longitudinal opening (16) by an outlet channel (29);
The heat insulating means (40) is provided at an edge of an outlet flow path (29) of the regulated air flow (Wo) between the regulating device (28) and the at least one longitudinal opening (16). Fan according to any one of the preceding claims, characterized in that it comprises a layer or panel of insulating material (43) arranged along the parts (25a, 25b). The thermal insulation means (40) is also characterized in that it also comprises a layer or panel of reflective material (45) arranged to minimize the absorption of thermal radiation of the conditioned air flow (Wo), The fan according to any one of claims 1 to 6. The layer or panel of reflective material (45) is arranged on the active surface (20a) of the flow channel forming element (20) facing the at least one longitudinal opening (16). The fan according to claim 7, which comprises: 9. The heat insulating means (40) according to any one of claims 1 to 8, characterized in that it comprises a layer or panel of insulating material (41, 42, 43) having a thermal conductivity of less than 0.10 W/mK. The fan described in paragraph. 10. The heat insulating means (40) according to any one of claims 1 to 9, characterized in that it comprises a layer or panel of barrier material (41, 42, 43) having a thermal conductivity of less than 0.5 W/mK. The fan described in paragraph. Fan according to any one of the preceding claims, characterized in that said heat insulating means (40) comprises a layer or panel of reflective material (45) having a reflection coefficient higher than 0.8. Fan according to any one of the preceding claims, characterized in that said heat insulating means (40) comprises a layer or panel of reflective material (45) having a reflection coefficient higher than 0.95. Fan according to any one of the preceding claims, characterized in that the heat insulating means (40) can be attached by using mechanical attachment, structural integration or surface finishing.

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