ES2353291B1 - Equipment with simplified modular structure of easy assembly for ventilation / air treatment with static thermal recuperator. - Google Patents

Abstract

Equipment with simplified modular structure of easy assembly for ventilation / air treatment with static thermal recuperator. # The equipment (E) has a housing (CAR) with four chambers (C {sub, 1} -C {sub, 4}) between those that establish a flow of incoming air (Fext) and outgoing air (Fextr) by means of impulsion and extraction fans (V {sub, 1}, V {sub, 2}) that are circulated through a heat exchanger (IEP) in a cross-linked manner without mixing. A carcass structure (1) is configured by transverse and longitudinal profiles (10-10, 11-11), and corner profiles (12) joined by connecting links (13), in addition to intermediate reinforcement profiles (14) brackets reinforcement (14) in the form of a frame of the profiles (10, 11, 12 and 14); a central separator (2) is provided for the exchanger (IEP) that has four separating walls (21) delimiting the aforementioned four chambers, filter holders (4, 4) being provided for filters (FE, FS) and the fans are mounted on plates fan holder (5, 6); additionally, lateral insulating covers (7) and upper and lower insulating covers (8) are provided.

Description

Simplified modular structure equipment with easy assembly for ventilation / air treatment with static thermal recuperator.

Scope and prior art

The present invention relates to an equipment for ventilation / air treatment of premises that has a modular type structure of easy assembly.

Currently there is a high demand for air quality inside premises where human activities of all kinds are carried out. To this end, the buildings have ventilation systems to guarantee, on the one hand, a sufficient external air flow that prevents the formation of high concentrations of pollutants and, on the other, to ensure that the air extracted from the premises that is expelled outside is not harmful to environment.

In this way, the outside ventilation air must be introduced into the building properly filtered, and a filtering process is also required before being expelled outside when it is removed from the premises.

As is known by the technicians, the requirements for fi ltration of incoming and outgoing air are very different from each other and also depend on the type and functionalities of the ventilated room, so that the equipment and ventilation systems employ previous fi lters and fi nal fi lters according to the various applications, and for this, the devices must be adapted to accommodate multiplicity of different filters in an easily interchangeable manner.

Additionally, in many countries there are regulations that require a recovery of energy from the air expelled outside by these air conditioning systems of buildings with air flows that exceed certain threshold values.

For these purposes, equipment whose principle scheme is represented in Figure 1 are currently known. These types of equipment are basically constituted by a housing essentially in the form of a parallelepiped with a first chamber with an outside air inlet and inlet filters for the treatment of incoming air and a second chamber with an air discharge outlet to the premises and a discharge fan to establish a flow of incoming air from the outside that circulates between said first and second chambers and also with a third air chamber with an outlet for extraction of room air and output filters for treatment of the outgoing air and a fourth chamber with an extraction air outlet and an extraction fan to establish a flow of outgoing extraction air between said second and third chambers.

Additionally, it is known to install in this type of equipment a static plate heat exchanger operatively arranged for heat absorption and transfer between the outgoing air flow and the incoming outside air flow, so that said air flows intersect against the current without mingle.

A first problem that arises with this type of equipment is to have a housing structure appropriately designed on the one hand for a simple and efficient accommodation of its components and that on the other hand adapts to the design of the multiple configurations required for the equipment according to the needs.

In addition, the requirement of energy recovery from air fl ows raises the technical problem of providing adequate thermal insulation between chambers as well as adequate gas tightness between the heat exchanger and chambers.

Another problem that arises in this type of equipment is the difficulty of establishing constant air flows due to increases in head loss, caused by the saturation of the filters and the installation.

It is also considered as a problem in this type of equipment the establishment of flow deviations (bypass) caused by mismatches between the fi lters supported in the chambers. Object of the invention

Starting from the state of the art described above, the invention aims to develop a device of the type indicated in a principle that allows eliminating or at least alleviating the existing problems.

In accordance with the invention, this objective is achieved through a device with the characteristics indicated in claim 1. Other developments and advantages of the invention are achieved through the characteristics indicated in the dependent claims.

The equipment comprises an essentially parallelepiped shaped housing that includes:

-

at least, a first chamber with an outside air inlet and inlet filters for the treatment of incoming air and a second chamber with an air discharge outlet to the premises and a discharge fan to establish a flow of incoming air from the outside circulating between said two cameras,

-

at least a third air chamber with an outlet for extraction of air from the premises and output filters for treatment of the outgoing air and a fourth chamber with an extraction air outlet and an extraction fan to establish an outflow of exhaust air between said two cameras, and

-

a static plate heat exchanger operatively arranged for absorption and heat transfer between the outgoing airflow fl ow and the incoming outside air fl ow, such that said air fl ows intersect against the current without mixing,

and it is characterized according to the invention in that it additionally comprises:

-

a carcass structure in the form of a parallelepiped consisting of pairs of transverse and longitudinal profiles and corner profiles, perpendicular to them, which are joined at their ends by respective connecting links arranged at the corners of said structure, and intermediate profiles of reinforcement mounted between the longitudinal and transverse profiles of each pair as well as respective reinforcement brackets mounted forming a frame for the profiles;

-

a central separator for determining within said housing structure the said four chambers, providing thermal and acoustic insulation between chambers as well as gas tightness between chambers and the static plate exchanger; said central separator having a central cage in the form of a parallelepiped for housing the static plate exchanger and four separating walls extending from the vertical edges of the central cage to the carcass structure and being fixed ends of said separating walls to the respective longitudinal and transverse profiles by means of the respective intermediate reinforcement profile;

-

fi lter holders with a carrier box for at least one fi lter, said fi lter holders being mounted in an interlocked manner between tabs of the central cage and transverse tabs correspondingly con fi gured in the respective associated separating wall;

-

fan-holder plates for mounting the respective drive and extraction fans that are mounted between corresponding tabs of the central cage and corresponding transverse tabs of the associated separating walls; Y

-

insulating side covers for coupling in the respective longitudinal, transverse and corner profiles as well as in the respective associated intermediate reinforcement profile and also upper and lower insulating covers for coupling in the corresponding longitudinal and transverse profiles.

According to a further feature of the invention, it is an advantageous embodiment when the longitudinal, transverse and corner profiles have the same cross section that defines respective pairs of grooves for fitted engagement of the side covers as well as for the upper and lower covers contained in respective perpendicular planes, as well as respective pairs of flanges that extend respectively parallel to the planes containing the respective grooves, and said profiles being different only in their length; and the intermediate reinforcing profiles being con fi gured as W-pieces with a pair of lateral grooves open outwardly for embedded engagement of the lateral covers and lateral flanges extending outward in planes parallel to those of their grooves.

According to another additional feature of the invention, it is an advantage when the separator with its cage and its separating walls is arranged as a set consisting of up to four equal complementary pieces that have a general shape of a tryro with a central portion for cage formation side faces to determine their side walls, so that respective insulating material plates can be arranged embedded between the respective adjacent side faces, thus allowing to provide separating walls with appropriate thermal and acoustic insulation. An additional advantage here results when, according to another feature of the invention, the plates of insulating material are arranged inside the side walls projecting from the respective side wall in the area corresponding to the edges of the central separator cage, so that when the static plate exchanger is disposed within said cage they act as a gas seal between the exchanger and the chambers delimited by said side walls.

According to an additional feature of the invention, it is an advantage when the case of the respective filter holders is essentially shaped in a parallelepiped shape with an open central frame, operatively facing the static plate exchanger and side faces with first flanges extending inwardly and in which additional tabs are extended which extend outwardly from said first tabs. This is an additional advantage when the fi lter case is provided mounted with gasket strips to eliminate the bypass defect.

Additionally, it is an advantage when the respective filter holder is provided with a pressure device for holding the respective filter, said pressure device comprising a U-shaped brace, stop squares coupled to the strap and pressure flanges mounted on the additional flanges of the filter holder housing, so that a tight seal between fi lter and filter holder is ensured to ensure that all air passes through the filter element, eliminating air flow deviations between the filters and the filter holder.

It is also an advantage according to an additional feature of the invention when a junction box is fixed on one side of the housing structure for the placement of electrical elements not shown.

Even in accordance with an additional feature of the invention, it is an advantage when the upper and lower covers are constituted by a frame in which generally pentagonal quadrant pieces and a complementary square central part based on insulating material and cover plates are also mounted. in the form of a quadrant, as well as a central cover plate associated with said square centerpiece, so that the chambers are isolated both from their upper part and their lower part through said parts and quadrant plate, also being isolated the heat exchanger upper and lower through the central parts and plates.

Also according to the invention it is advantageous to arrange the equipment on a support such as a bench, a square or a square with support legs.

In order to ensure that the incoming and outgoing air flows are adequately constant, the drive and exhaust fans are radial “Plug Fan” type with external rotor motor with integrated electronics and programmable constant flow. Brief description of the drawings

Other features and advantages of the invention will result more clearly from the description that follows made with the help of the attached drawings, referring to an example of non-limiting execution and in which:

Figure 1 shows a diagram of the principle of operation of a device according to the invention.

Figures 2 and 3A illustrate respective perspective views of equipment according to the invention in two partially disassembled states.

Figures 3B and 3C show respective perspective views of alternative embodiments of support brackets for the housing structure of the equipment according to the invention.

Figures 4A to 4C show respective perspective, elevation and plan views of the equipment housing structure according to Figures 2 and 3.

Figures 5A to 7 illustrate respective perspective views of the different constituent profiles of the structure according to Figures 4A to 4C.

Figures 8A and 8B show the equipment separator element according to Figures 2 and 3, in respective perspective views in the assembled and disassembled state.

Figure 8C shows a detail of the separator element of Figures 8A and 8B mounted on the equipment according to the invention.

Figures 9A and 9B show different details of the fi lter holder of the figures in figures 2 and 3.

Figures 10A and 10B illustrate respective perspective views of the upper and lower insulator covers of the equipment according to the invention. Detailed description of a preferred embodiment

As can be seen from Figure 1, the equipment referred to in the invention, generally designated by reference E, has a CAR housing essentially in the form of a parallelepiped in which four contiguous C1-C4 chambers are defined and connected two to two operationally. for circulation of the incoming and inner outdoor air to the outgoing premises as will be explained in more detail below.

It can be seen that the first chamber C1 has an outside air inlet EXT and inlet filters FE for treatment of the incoming air from the outside and that the second chamber C2 has an air discharge outlet to the IMP room and a discharge fan V1 for establishing a flow of incoming air from outside Fext circulating between said two chambers C1 and C2.

In turn, the third chamber C3 has an EXR socket for the extraction of air from the premises and FS output filters for the treatment of the outgoing air; while the fourth chamber C4 has an exhaust air outlet DES and an exhaust fan V2 to establish a flow of outgoing exhaust air Fexr between said two chambers C3 and C4.

Continuing with the reference to Figure 1, it is noted that a static Iep plate heat exchanger is operatively arranged for heat absorption and transfer between the outflow air flow Fexr and the incoming outside air flow Fext so that said flows of air intersect against the current without mixing.

As can be seen in more detail in Figures 2 and 3, the CAR housing of the equipment E includes a carcass structure 1 in the form of a parallelepiped and a central separator 2 also in the form of a parallelepiped for housing the static exchanger of Iep plates and serving in addition to delimiting inside the structure the mentioned four C1 aC4 chambers, providing thermal and acoustic insulation between the respective chambers as well as gas tightness between chambers and exchanger, as will be explained in detail later.

Additionally, it can be seen that in the cameras C1 and C2, respective filter devices 4, 4 for input filters FE, and respective output FS are mounted; while in the chambers C3 and C4 and with the help of respective fan-carrier plates 5, 6, the drive fans V1 and exhaust fans V2 are respectively mounted.

Additionally, it can be seen that in the housing structure 1 side insulating covers 7 and upper and lower insulating covers 8 are mounted, as well as a junction box 9 for electrical elements not shown.

With special reference now to Figures 4A to 4C it can be seen as already mentioned that the carcass structure 1 is in the form of a parallelepiped and is constituted based on respective pairs of transverse profiles 10-10, and longitudinal profiles 11-11, and corner profiles 12, perpendicular to them that are joined at their ends by respective connecting links 13 arranged at the corners of said structure. It can also be seen that intermediate reinforcement profiles 14 are mounted between the longitudinal and transverse profiles 10 of each pair; additionally, to provide the carcass structure 1 with increased structural stability it can be seen that respective reinforcement brackets 15 are mounted forming a frame for the profiles 10, 11, 12 and 14 mentioned above.

Referring further to Figures 5A, 5B, 6A and 6B, it can be seen that longitudinal profiles 10, cross profiles 11 and corner profiles 12 have the same cross section that defines respective pairs of slots 100-100, 110110, 120- 120 for fitting fitted coupling of the side covers 7 as well as for the upper and lower covers 8, whose grooves are contained in respective perpendicular planes. It can also be seen that said profiles 10, 11 and 12 also con fi gure respective pairs of tabs 101-101, 111-111, 121-121 that extend respectively parallel to the planes containing their respective grooves and it can be seen that said profiles 10, 11, 12 have an identical cross-section and only differ in length.

As shown in Figure 7, the intermediate reinforcement profiles 14 are configured as W-pieces with a pair of lateral grooves 140, 140 open outwardly for embedded engagement of the side covers 7 and side flanges 141, 141 for fixing to the structure of housing 1 and extending outward in planes parallel to those containing their grooves.

Referring again to Figure 2 and 3 and in addition to Figure 8A, it can be seen that the central separator 2 is provided with a central cage 20 in the form of a parallelepiped for housing the static exchanger of Iep plates and four separating walls 21 which they extend from the vertical edges 200 of the central cage to the carcass structure 1. It can be further seen that the partition walls 21 are coupled to the carcass structure 1 through its ends 210 next to the respective intermediate reinforcement profile 14 so which as mentioned above serve to delimit within the housing the aforementioned four cameras C1 aC4.

With reference still to FIGS. 2, 3 and 8A, it can be seen that tabs 201 are provided in the central cage 20, while transverse flanges 211 are con fi gured on the transverse walls 21 which serve together for both the fitted mounting of the respective filter holders 4, 4 as for mounting the respective fan holder plates 5, 6.

As can be seen through Figure 8B, the separator 2 with its cage 20 and its separating walls 21 can be provided as a set consisting of up to four complementary pieces 2000 equal and having a general shape of a trihedron with a central portion 2001 for forming the cage 20 and side faces 2002, 2002 to form its side walls 21. This configuration allows to install respective plates 2003 of thermal and acoustic insulating material embedded between the respective adjacent side faces 2002, so that the respective separating walls 21 can be provided with insulation Appropriate thermal and acoustic.

As shown in Figure 8C, the insulating material plates 2003 are arranged inside the side walls 21 so that they protrude from the respective side wall in the area corresponding to the edges 200 of the cage 20 of the central separator 2. In this way, when the static Iep plate exchanger is disposed within said cage 20 the portions of protruding insulating material 2003 through the respective side wall 21 are pressed by the static interchange of Iep plates, making gas seal between said exchanger and the C1 aC4 chambers delimited by said side walls.

In accordance with all of this, and as mentioned, a central separator 2 thus configured allows to determine inside the housing structure 1 the aforementioned four chambers C1 aC4, providing both thermal and acoustic insulation between chambers and gas tightness between chambers and the static plate exchanger Iep.

Referring again to FIGS. 2 and 3 and additionally referring to FIGS. 9A and 9B, it can be seen that the respective filter holders 4 are provided with a housing 40 essentially con fi gured in the form of a parallelepiped. This box 40 has an open central frame 400 for mounting in the central cage 20 of the separator 2 and side faces 401 with first tabs 4010 projecting inwardly and in which additional tabs 4011 extending outwardly from the cited first tabs 4010.

With special reference to Figure 9B showing a respective filter holder with a fi lter FE or FS mounted thereon, it can be seen that the side walls 401 of the filter box 40 a respective seal strip 41 is arranged. In this figure 9B it can be seen additionally that the respective filter holder 4 is equipped with a pressure device indicated in general with reference 42 to hold the fi lter FE or FS. This pressure device 42 is constituted by a U-shaped brace 420, stop squares 421 coupled to the brace and pressure flanges 422 mounted on the additional flanges 4011 of the box 40 of the filter holder thanks to respective recesses 4012 and holes 4013 correspondingly provided in said tabs 401 and 4010. This ensures a tight seal between the fi lter and filter holder to ensure that all air passes through the fi ltering element, eliminating air flow deviations between filters and the filter holder.

As can be seen through Figure 10A and 10B, the upper and lower covers 8, 8, are constituted by a frame 80 in which generally pentagonal quadrant pieces 81 and a complementary square centerpiece 82 based on material are mounted insulator and cover plates 83 also in the form of a quadrant, as well as a central cover plate 84 associated with said square centerpiece, so that chambers C1 aC4 are insulated both by their upper part and their lower part through the said parts and dial plate, the Iep plate heat exchanger being also insulated upper and lower through the parts and central plates.

As shown in Figures 2 and 3A, the equipment E can be arranged with a bench 16 on which it supports the carcass structure 1, but as shown through Figure 3B, the carcass structure 1 can be mounted on respective supports of corner 17 in the form of a square and alternatively as illustrated in Figure 3C with a respective support leg 18 mounted on the respective corner support 17.

A carcass structure according to the above described can be carried out with aluminum profiles, the assembly of the cover panels being possible without the use of screws.

It is also easily removable and makes it possible to change the position of the lid panels in the equipment and the position of the discharge nozzles can also be exchanged quickly and cleanly, without damaging the finish.

Although not shown, the cover panels, for example of previously lacquered sheet metal, can be provided with insulation and coating of aluminum foil reinforced with a mesh that is mainly used as thermal and acoustic insulation. The aluminum surface sheet improves its behavior against radiation heat transmission as well as its air or water tightness.

As will be readily understood by persons versed in the art, the above described is merely illustrative of a preferred embodiment of the invention so that technical modifications of all kinds are possible and the invention will only be limited by the scope of the following claims.

Claims (14)

1. Equipment with simplified modular structure of easy assembly for ventilation / air treatment with static thermal recuperator, said equipment (E) comprising a shell (CAR) essentially in the form of a parallelepiped that includes:

-

at least one first chamber (C1) with an outside air inlet (EXT) and inlet filters (FE) for incoming air treatment and a second chamber (C2) with a local air supply outlet (IMP) and a discharge fan (V1) for establishing a flow of incoming outside air (Fext) circulating between said two chambers,

-

at least a third air chamber (C3) with an outlet (EXR) for room air extraction and outlet filters (FS) for outgoing air treatment and a fourth chamber (C4) with an exhaust air outlet (DES ) and an extraction fan (V2) to establish an outgoing air flow (Fexr) between said two chambers, and

-

a static plate heat exchanger (Iep) operatively arranged for absorption and heat transfer between the outgoing exhaust air flow (Fexr) and the incoming outside air flow (Fext) so that said air flows intersect against the current without mingle,

characterized in that it additionally comprises:

-

a carcass structure (1) in the form of a parallelepiped consisting of pairs of transverse and longitudinal profiles (10-10, 11-11), and corner profiles (12) perpendicular to them that are joined at their ends by respective links of union (13) arranged in the corners of said structure, and intermediate reinforcement profiles (14) mounted between the longitudinal and transverse profiles (10, 11) of each pair as well as respective reinforcement brackets (14) mounted forming a frame for the profiles (10, 11, 12 and 14);

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a central separator (2) for determining inside said housing structure (1) the said four chambers (C1-C4), providing isolation between chambers as well as gas tightness between chambers and the static plate exchanger; said central separator having a central cage (20) in the form of a parallelepiped for housing the static plate exchanger (Iep) and four separating walls (21) extending from the vertical edges (200) of the central cage to the carcass structure (1) and ends (210) of said separating walls being fixed to the respective longitudinal and transverse profiles (10, 11) by means of the respective intermediate reinforcement profile (14);

-

fi lter holder (4, 4) with a carrier box (40, 40) for at least one fi lter (FE, FS), said fi lter holder being fitted between tabs (201) of the central cage (20) and transverse tabs (20) 211) correspondingly configured in the respective associated separating wall (21);

-

fan-holder plates (5, 6) for mounting the respective drive and extraction fans (V1, V2) that are mounted between corresponding tabs (201) of the central cage (20) and corresponding transverse tabs (211) of the associated partition walls; Y

-

side covers (7) insulators for coupling on the respective longitudinal, transverse and corner profiles (10, 11, 12) as well as on the respective associated intermediate reinforcement profile (14), and upper and lower covers (8) also insulators for coupling in the corresponding longitudinal and transverse profiles (10, 11).

2.

Equipment according to claim 1, characterized in that the longitudinal, transverse and corner profiles (10, 11, 12) have the same cross section that defines respective pairs of grooves (100-100, 110-110, 120, 120) for fitted coupling of the side covers (7) as well as for the upper and lower covers (8) contained in respective perpendicular planes, as well as respective pairs of flanges (101-101, 111-111, 121-121) that extend respectively parallel to the planes containing the respective grooves, and said profiles being different (10, 11, 12) only in their length.

3.

Equipment according to claim 1, characterized in that the intermediate reinforcing profiles (14) are provided as W-pieces with a pair of lateral grooves (140, 140) open outwardly for embedded engagement of the side covers (7) and lateral tabs (141, 141) that extend outward in planes parallel to those of their grooves.

Four.

Equipment according to claim 1, characterized in that the separator (2) with its cage (20) and its separating walls (21) is provided as a set consisting of up to four equal complementary pieces (2000) that have a general triedron shape with a central portion (2001) for forming the cage (20) and side faces (2002, 2002) to determine its side walls (21), so that respective insulating material plates (2003) can be arranged embedded between the respective faces adjacent sides (2002), so that separating walls (21) can be provided with appropriate thermal and acoustic insulation.

5. Equipment according to claims 1 and 4 characterized in that the insulating material plates (2003) are arranged inside the side walls (21) protruding from the respective side wall in the area corresponding to the edges (200) of the cage (20) of the central separator (2), so that when the static plate exchanger (Iep) is disposed within said cage they act as a gas seal between the exchanger and the chambers (C1-C4) delimited by said side walls (21).

6.

Equipment according to claim 1, characterized in that the box (40) of the respective filter holders (4) is essentially shaped in a parallelepiped shape with an open central frame (400), operatively facing the static plate exchanger (Iep) and side faces (401) with first tabs (4010) extending inwardly and in which additional tabs (4011) that extend outwardly from said first tabs (4010) are configured.

7.

Equipment according to claim 6, characterized in that the box (40) of the filter holder (4) is provided mounted with gasket strips (41) to eliminate the bypass defect.

8.

Equipment according to claims 1, 6 and 7, characterized in that the respective filter holder

(4) it is provided with a pressure device (42) for securing the respective fi lter (FE, FS), said pressure device comprising a U-shaped brace (420), stop squares (421) coupled to the tie rod and flanges pressure (422) mounted on the additional tabs (4011) of the case (40) of the filter holder, so that a tight seal between the fi lter and filter holder is guaranteed to ensure that all the air passes through the filter element, eliminating flow deviations of air between filters and the filter holder.

9.

Equipment according to claim 1, characterized in that a junction box (9) is fixed on one side of the housing structure (1).

10.

Equipment according to claim 1, characterized in that the upper and lower covers (8, 8) are constituted by a frame (80) in which quadrant pieces (81) generally pentagonal and a square central part (82) are mounted. complementary based on insulating material and cover plates (83) also in the form of a quadrant, as well as a central cover plate (84) associated with said square centerpiece, so that the chambers (C1-C4) are isolated both by its upper part as its lower part through the mentioned parts and plate of

quadrant, the heat exchanger being also insulated upper and lower through the central parts and plates.

eleven.

Equipment according to claim 1, characterized in that the housing structure (1) is mounted either on a support bench (16) or on respective corner brackets (17) in the form of a square.

12.

Equipment according to claim 11, characterized in that the corner supports (17) are provided with respective support legs (18).

13.

Equipment according to claim 1, characterized in that the impulsion (V1) and extraction (V2) fans are radial "Plug Fan" type with external rotor motor with integrated electronics and programmable constant flow, so that the External incoming air flows (FEXT) and outgoing extraction (FEXR) are adequately constant.

SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 201031561 SPAIN Date of submission of the application: 10.26.2010 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: F24F12 / 00 (01.01.2006) RELEVANT DOCUMENTS

Category

Documents cited Claims Affected

X

GB 2451303 A (MITSUBISHI ELECTRIC CORP) 28.01.2009, pages 5-6; Figures 1-3. 1-13

X

US 4727931 A (BERNER ERLING) 01.03.1988, column 2, line 59 - column 3, line 17; 1-13

Figures 1-4.

X

WO 2010095237 A1 (MITSUBISHI ELECTRIC CORP et al.) 08.28.2010, summary; pages 3-4; 1-13

Figures 1,4,5.

X

WO 2010085197 A2 (SWEGON AB et al.) 29.07.2010, page 1, lines 4-6; page 7, lines 9-33; 1-13

Figures 2a, 2b, 4a, 4b.

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 04.02.2011

Examiner M. Ramos Asensio Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 201031561 Minimum documentation searched (classification system followed by classification symbols) F24F Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENES, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 201031561 Date of Written Opinion: 04.02.2011 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims 1-13 IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims 1-13 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 201031561 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

GB 2451303 A (MITSUBISHI ELECTRIC CORP) 01/28/2009

D02

US 4727931 A (BERNER ERLING) 01.03.1988

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement Document D01 discloses a fan with heat exchanger, contained in a structure in the form of parallelepiped, comprising: -a outside air inlet (26, fig.2) and inlet filters (4a, fig.3) - an air outlet to the room (27, fig. 2) and a discharge fan (5, fig. 2) -a room air inlet (24, fig.2) and outlet filters (6b, fig.3) - an outside air outlet (26, fig. 2) and an exhaust fan (3, fig. 3) -a heat exchanger (1, fig. 1-3) contained in a parallelepiped shaped structure. The invention of claim 1 does not differ from the technique described in document D01 in any way essential for achieve the same technical effect, so it is considered obvious to a person skilled in the art, only in detail leftover constructs known in the state of the art, such as the filter holder, the fan holder plates, the constitution of the walls or the central separator of the structure, the latter can be seen in document D02 (14, fig. 1). In addition, claim 1 contains functional features, such as the description of the function of an exchanger, the enumeration of the different profiles that constitute a parallelepiped, the function of the central separator or the isolation of the walls of the housing, none of them contributing to structurally define the object of the invention that is You want to protect. The design features disclosed in claims 2-13 are mere obvious particular executions for a skilled. Therefore, claims 1-13 lack inventive activity according to the criteria established in Art. 8 of the Law on Patents State of the Art Report Page 4/4