ES1271420U - Filtering system for cassette with UV-C - Google Patents

Abstract

A filtering system for cassette with UV-C that is installed in cassette air conditioning systems, to purify the air that circulates through it, is characterized in that it comprises: - A support (6) is fixed with screws to the cassette air conditioner. - A core (2) that is screwed to the support (6) and the diffuser cover (4) is attached from its lower part. In the core (2) the lampholders (11), the UV-C ultraviolet lamps (12) are housed. The ballast (13) that powers the UV-C lamps (12). It has an electrical connection terminal (14), the adjustable support (15) for the installation of filters of different thicknesses, the high-efficiency HEPA filter (16), the filter holder (17), it also includes some housings (18) for fastening clips (18b). - The filtering frame (3), is attached to the upper part of the diffuser cover (4), it is a second air inlet. - Diffuser cover (4) that carries: Some air deflectors (21), some circular air inlet tubes (22), a safety button (23), some hollow spacers (20), through which the they house the fixing screws (29), to the core (2). - Lower cover (5), mounted under the diffuser cover (4), comprising: the pre-filter (28), the fixed fastening pins (25), the movable pins (26) to fix the lower cover (5) to the diffuser cover (4) and the handle (27) for removal. - Rubber gasket (9) is to maintain the seal between the support (6) and the projection of the core (10). - A trim (1) that covers the union of the support (6) and the core (2). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

FILTER SYSTEM FOR CASSETTE WITH UV-C

TECHNICAL SECTOR

Since the first cassette air conditioning systems were installed, it was observed that, due to their operation and manufacture, they tend to accumulate a lot of dirt inside, especially in the evaporator tray and pump and in the coil, due to humidity and darkness, fungi, molds, bacteria, and pathogens proliferate that can cause diseases and their diffusion through the air. This forces us to do deep cleaning maintenance very frequently to keep the interior clean, something that is almost never done because to do this type of cleaning the system must be completely disassembled.

All the pathogens accumulated in the cassette are constantly recirculating through the room, spreading pollution in the air and spreading diseases, among other people who share the room, in such a way that, if a person has a contagious disease such as some type of flu, coronavirus , tuberculosis, etc. There are many possibilities of infecting others.

I have designed this filtering system thinking about solving these problems with air quality, since it acts as a purifier, filtering and cleaning the air in its path of pathogens.

We pass it through two filters, one for fine dust or (pre-filter) and the other HEPA, so that it catches even the smallest pathogens (such as bacteria and viruses).

Once the air enters the system, it passes through the pre filter, then the HEPA filter, while the Hepa filter is irradiated by the ultraviolet light from the 254 nm short wave ultraviolet lamps with a germicidal effect, the light falls on the filter, on the air as it passes through and on the inside of the entire filtering system and inside the cassette. In this way, dirt does not enter the interior of the cassette and thus pathogens do not proliferate inside, therefore, the air will come out cleaner.

BACKGROUND OF THE INVENTION

Cassette air conditioners already have a filter, but its only function is to filter out dust and large particles.

EXPLANATION OF THE INVENTION

The cassette filtering system is located in the hole of the filter grid, just at the air inlet of the cassette, to install the system we remove the grid and the filter from the cassette.

It is made up of several components.

In the upper part of the system, there is the support (6) that is housed in the hole left by the cassette grid when we remove it.

It is screwed to some metal staples (7b) that we have previously placed by making some housings on the inner sides of the cassette, (in the hole left by the filter cover).

Once the support (6) is fixed, we connect the current clamp (14) of the filtration system with the current clamp that we have taken out of the cassette.

We place a rubber gasket (9) and screw the core (2) through its projection (10) where the holes (19) go so that the screws (8c) go through.

After this we assemble the trim frame (1) that is snapped in, covers the joint between support (6) and core (2) and its function is purely aesthetic.

Next, we place the filter frame (3) on the diffuser cover (4) and screw the cover (4) to the bottom of the core (2), they are joined through some spacers (20) so that the air passes between components.

Finally, we place the lower cover (5) where the pre filter (28) is installed.

Component parts and their function.

Support (6).

To install the support (6) we must remove the cassette filter grid and place it in its place, the support (6) will be made of aluminum to prevent oxidation, it is formed by a 90 ° angle profile, one side is screw to the cassette with some screws (7c) and they are screwed to some staples (7b) that we have previously installed in some accommodations that we have made inside the cassette.

In the lower part of the profile it is screwed to the core (2), with the screws (8c) that will thread into the staples (8b) housed in the support (6), between the parts we place a rubber gasket (9).

The nucleus (2).

It is the most important part of the system, it acts as an air duct and carries inside it the lamp holders (11), the UV-C ultraviolet lamps (12), the power ballast (13) for the lamps (12), the electrical connection terminal (14), the adjustable filter support (15) to admit different thicknesses, the HEPA filter (16) with high filtering efficiency, which filters very small particles (such as bacteria and viruses), the holder filter (17) and the staple holder holes (18), where the staples (18b) are located.

The diffuser cover (4).

The filtering frame (3) is housed in the diffuser cover (4), it is flexible and adapts to the contour of the core (2).

It has upper air inlets, through which the air enters through the gap that we leave through the spacers (20) between the core (2) and the diffuser cover (4). It also has lower air inlets, they are circular in shape and have a very short tube (22) and baffles (21) are placed on them, so that the air can pass through and the possible UV-C light that could come out does not come out. from the system, if it passes through the HEPA filter (16).

Inside the diffuser cover (4) the safety button (23) is installed, which acts on a normally open microswitch.

It is used so that, in case of disassembling the system with the cassette in operation, the UV-C lamps are turned off, to avoid exposure to the operator or to the outside.

The safety button (23) is actuated through one of the spacers (20) connecting the diffuser cover (4) and the core (2).

The diffuser cover (4) is installed in the lower part of the core (2).

It is screwed with some screws (29) that go through the interior of some spacers (20) that act as a union between the core (2) and the diffuser cover (4).

We place the spacers there to let the air pass between both parts.

The lower cover (5).

It is attached to the lower part of the diffuser cover (4), and is attached to it on one side by fixed pins (25) that enter on one side and on the other side it has pins (26) that go with handles ( 27), actuated by springs for quick disassembly, when we press the handles (27), the pins (26) retract and the lower cover (5) opens.

In the lower cover (5), the pre filter (28), the pins (25), the pins (26), and the handles (27) are installed.

The filtering system for cassette with UV-C is installed at the air inlet of the cassette, in such a way that we pass the air simultaneously through the lower pre-filter (28) and the filtering frame (3) in the upper part .

Then it passes through the HEPA filter (16), and the core (2) irradiated by the UV-C light with a germicidal effect, coming from the lamps (12).

UV-C light falls on the air as it passes through, on the inside of the cassette and on the HEPA filter (16), for greater efficiency, and to avoid the proliferation of fungi, molds, bacteria and pathogens in the HEPA filter (16), inside the device, and the cassette.

Thus we will have a purified, pathogen-free, a cassette with cleaner and more efficient coils and a cleaner tray and evaporator pump for longer.

With this system we avoid the contagion of diseases that can be transmitted by airways, or by the spread of polluted air through nearby rooms.

The system can be installed both in private homes and in public buildings, health centers, establishments in general, in all places where you have installed a cassette air conditioner.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1:

Side view of UV-C cassette filtration system.

Trim (1), (2) core, (3) filter frame, (4) diffuser cover, (5) lower cover.

Figure 2:

Side view of the support (6).

Side fixing holes to cassette (7). Staples that are fixed to the cassette (7b), and the fixing screws between the support and the cassette (7c), staple housings (8) that hold the support (6) to the core (2).

(8b) Nut staples, (8c) fixing screws of the support (6) to the core (2).

Figure 3:

Side view of the interior of the core (2).

Rubber gasket (9) that goes between the support (6) and the core (2).

(10) Protrusion of the core for fixing to the support (6).

(11) Lamp holder, (12) UV-C lamps, (13) Lamp power ballast. (14) Electrical connection terminal, (15) Adjustable filter support to support filters of different thicknesses, (16) HEPA filter, (17) filter holder, (18) housings for staples, (18b) staples.

Figure 4:

Top view where you can see the inside of the core (2).

(19) screw through holes (8c), (2) core, (11) lamp holder, (12) UV-C lamps.

Figure 5:

Side view of the inside of the diffuser cover (4).

(20) spacers, (21) air deflectors, (22) air inlet tubes, (23) safety button, (29) screws x 8 units.

Figure 6:

Top view of the diffuser cover (4).

(4) Diffuser cover, (21) deflectors, (22) air inlet tubes, (24) holes for the passage of screws (29).

Figure 7:

Side view of the lower cover (5).

(5) Bottom cap, (25) fixed holding pins, (26) movable pins, (27) knob (28) Pre filter

PREFERRED EMBODIMENT OF THE INVENTION

I present the filtration system for cassette with UV-C.

It is made up of several main parts.

At the top is the support (6), which connects to the cassette, it will be made of a stainless metal such as aluminum.

The core (2) is attached to it, which will be made of stainless metal or aluminum, and will be painted white on the outside.

The core (2) houses the UV-C lamps (12) and the HEPA filter (16) and the aforementioned components, which will be made of various materials suitable for their manufacture.

At the bottom of the core (2) there is a diffuser cover (4), which will be made of white plastic.

To close we have the lower cover (5) that will be made of plastic and with the handles (27) of aluminum and steel springs.

The pre-filter (28) is housed in the lower cover (5), which will be made of washable plastic.

The exterior of the system will normally be white and can be manufactured on demand to be able to adapt them to the different models, sizes, brands, and colors that may be required.

Based on this system, they can be made in different sizes and configurations in order to be able to be coupled to the different cassette air conditioning systems.

Claims (5)

1. A filtering system for cassette with UV-C that is installed in cassette air conditioning systems, to purify the air that circulates through it, is characterized in that it comprises: - A support (6) is fixed with screws to the cassette air conditioner. - A core (2) that is screwed to the support (6) and the diffuser cover (4) is attached to its lower part. In the core (2) the lampholders (11), the UV-C ultraviolet lamps (12) are housed. The ballast (13) that powers the UV-C lamps (12). It has an electrical connection terminal (14), the adjustable support (15) for the installation of filters of different thicknesses, the high-efficiency HEPA filter (16), the filter holder (17), it also includes some housings (18) for fastening clips (18b). - The filtering frame (3), is attached to the upper part of the diffuser cover (4), it is a second air inlet. -Diffuser cover (4) that carries: Some air deflectors (21), some circular air inlet tubes (22), a safety button (23), some hollow spacers (20), through which the they house the fixing screws (29), to the core (2). -Lower cover (5), mounted under the diffuser cover (4), comprising: the pre-filter (28), the fixed fastening pins (25), the movable pins (26) to fix the lower cover (5 ) to the diffuser cover (4), the handle (27) is for disassembly. -Rubber gasket (9) is to maintain the seal between the support (6) and the projection of the core (10). - A trim (1) that covers the union of the support (6) and the core (2). 2. The UV-C cassette filter system of claim 1, characterized in that its support (6) is coupled and fixed to the space left by the cassette air conditioner filter cover when it is removed. 3. The filtering system for cassette with UV-C of claim 1, is characterized in that in the lower part of the diffuser cover (4) it carries the circular tubes (22), on them are the deflectors (21), to the air in and so that the ultraviolet light does not come out of the system. 4. The filtering system for cassette with UV-C of claim 1, is characterized in that it has installed a safety button (23) that activates a normally open microswitch, so that in case of disassembling the diffuser cover (4) With the cassette filtering system in operation, the UV-C lamps (12) are turned off, so as not to expose the operator. 5. The filtering system for cassette with UV-C of claim 1, is characterized in that it has installed ultraviolet light lamps (12) with a germicidal effect of 254nm, they are placed in the core (2) so that the light falls on the air as it passes, on the HEPA filter (16), and on the inside, both of the filtering system and inside the cassette.