JPH04217723A - Screen disposed at air blowing port - Google Patents

Abstract

PURPOSE:To provide a device which is effectively operated to clean an indoor area through collecting dusts blown from an air blowing port of an air condition, a room cooler, a ventilation fan and a ventilator or the like. CONSTITUTION:A screen 1 which is disposed at an air blowing port of an air conditioner 2 is characterized in that it is composed of a electret fibrous sheet having a surface charge density of 1X10<-10> Coulomb/cm<2> or more, a unit weight of 10g/m<2> or more to 200g/m<2> or less and a width of 1 to 500mm. When the screen 1 is disposed at an air blowing port of an air conditioner, a room cooler and a ventilation fan or the like, dusts dispered from the air blowing port into surrounding air and indoor area can be approximately completely caught and the screen provides a remarkable effect of getting clean air in a home, an office, a building, a factory, hall and a station or the like.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain-like curtain (hereinafter simply referred to as a curtain in the present invention) provided at an air outlet of an air conditioner, a room cooler, a ventilation fan, or the like.

More specifically, the present invention relates to a novel curtain that efficiently purifies the interior of a room by trapping dirt, dust, and the like coming out of the vent by providing the curtain at the air vent.

0003

[Prior Art] Conventionally, large amounts of dust and dust have been emitted from the air outlets of air conditioners, room coolers, ventilation fans, ventilation devices, etc. used mainly in homes, offices, buildings, factories, halls, stations, etc. Ta.

[0004] However, at present, there is no special means for collecting these dust particles.

[0005]

[Problems to be Solved by the Invention] In view of the above-mentioned points, it is an object of the present invention to capture dirt, dust, etc. blown out from the air outlet of an air conditioner, room cooler, ventilation fan, ventilation device, etc. The purpose of the present invention is to provide a simple device that has a remarkable effect on purifying water.

[0006]

[Means for Solving the Problems] The apparatus of the present invention which achieves the above-mentioned object has a density of 1 x 10-10 coulombs/cm2.
It has a surface charge density of 10g/m2 or more, and has a basis weight of 10g/m2.
The present invention is a noren curtain provided at an air outlet, characterized in that it is made of an electret nonwoven fabric with a width of 1 to 500 mm.

[0007]

[Operation] Hereinafter, the curtain provided at the air outlet of the present invention will be explained in more detail based on the drawings and the like. FIG. 1 is a model diagram showing an example of an embodiment in which a noren curtain provided at the air outlet of the present invention is used, and FIG. FIG. In these figures, a goodwill 1 according to the present invention is provided, for example, near an air outlet of an air conditioner 3 so as to cover the outlet. Reference numeral 2 denotes a case in which the noren 1 can be stored by winding it up or the like.

[0008] The material used for the noren of the present invention is preferably made of a highly flexible fiber material in order to enhance the dust trapping effect, and the material is preferably in the form of a sheet. preferable. As such a fiber sheet-like material, knitted fabrics, woven fabrics, non-woven fabrics, net-like materials, etc. can be used, but from the viewpoint of flexibility and cost, it is particularly preferable to use synthetic fiber non-woven fabrics. It is preferable to use a melt-blown nonwoven fabric as the nonwoven fabric, not only because it has better flexibility, but also because the tips of the short fibers constituting the nonwoven fabric become entangled with dust, etc., thereby increasing the ability to capture dust.

[0009] The above-mentioned fiber sheet material is further subjected to electret processing in order to effectively trap dust and dirt. The electret-treated fiber sheet has a surface charge density of 1×
It is preferable to use one having a particle diameter of 10-10 coulombs/cm2 or more in terms of its ability to capture dust and dirt, and if it is less than this value, high capturing performance cannot be expected.

[0010] Also, the basis weight of the fiber sheet material is 10g/
It is preferably within the range of m2 to 200g/m2, more preferably 20g/m2 to 100g/m2
It is preferable that it is within the range of . If the sheet is smaller than this range, especially in the case of non-woven fabric, the tear strength may be weak and the sheet may be torn off during use, or if it is larger than the above range, it may become extremely heavy. This poses a problem in terms of practicality.

Furthermore, in order to improve the dust removal efficiency, it is also important to set the sheet width (width of one unit sheet forming a curtain-like structure) to an appropriate value depending on the mode of use. In particular, according to the findings of the present inventors, the sheet width is 1
It is preferable to use a thickness in the range of about 5 mm to 500 mm, more preferably a range of 5 mm to 40 mm. Although it is possible to use fairly thin sheets, such as those less than 1 mm, they are generally undesirable because they cause problems in terms of strength, dust removal efficiency, and problems such as narrow sheets becoming tangled with each other. On the other hand, if it exceeds 500 mm, there are problems such as it may adversely affect the flow of air in air conditioners, room coolers, ventilation fans, etc. However, depending on the size, shape, amount of air blowing, etc. of the air blowing port, it may be possible to use one with a length exceeding 500 mm.

[0012] Furthermore, the average fineness of the fibers constituting the fiber sheet is 1 denier or less because it provides excellent capture efficiency, provides a flexible sheet, has a low basis weight, and is excellent in strength. This is preferable because it provides a good product. When the fiber sheet is a nonwoven fabric,
Melt-blown synthetic fiber nonwoven fabric is preferred in terms of achieving the above average fineness value.

[0013] When constructing the curtain provided at the air outlet of the present invention, it is also preferable to configure the curtain so that it can be freely attached and detached from the viewpoint of improving cleaning efficiency and ease of handling. Examples of ways to create a structure that can be attached and detached freely include using temporary adhesive to make it detachable, using a special case that can be stored by winding up the noren, and using the method of fitting the special case into it, or using hooks. This can be achieved by configuring it so that it can be attached and detached using a hanging method, screwing method, etc.

[0014] By configuring the noren section to be freely attachable and detachable, the noren curtains that have become dirty due to use can be discarded and replaced with new ones, and the best cleaning effect can always be obtained. preferable.

As mentioned above, in order to use the electret sheet as a goodwill to trap dust, etc., it is important that the electret sheet has strong trapping performance (dust adhesion performance). In addition, the surface electrification density of the electret sheet used in the present invention is preferably 1 x 10-10 coulombs/cm2 or more, more preferably 2 x 10-10 coulombs/cm2 or more.
It is preferable that it is 10 coulombs/cm2 or more. Such surface electrification density can be obtained by sandwiching the sheet between two metal plates connected via a capacitor of capacitance C (farads).
The voltage V measured between both terminals of the capacitor at that time
(V) and the surface area S (cm2) of the sheet, Q(
Coulomb/cm2)=C×V/S.

[0016]

[Effects of the Invention] By being provided at the air outlet of an air conditioner, room cooler, ventilation fan, etc., the noren curtain provided at the air outlet according to the present invention prevents dust and other particles from flowing out from these outlets and scattering into the air. can be captured almost perfectly.

[0017] The noren of the present invention can be used in homes, offices, buildings,
It has a remarkable effect on cleaning the air in factories, halls, stations, etc.

[0018]

EXAMPLES Next, examples will be shown for the purpose of clarifying the present invention, and the present invention is not limited or restricted by these examples.

[0019] Example fineness 0.05 denier, basis weight 20g
/m2, surface charge density 5×10-10 coulombs/c
m2 of polypropylene melt-blown nonwoven fabric,
This was cut to a width of 10 mm to make a noren with the shape shown in Figure 2.

[0020] As a result of installing the noren curtain at the air outlet of an air conditioner, it was possible to trap dust and the like without scattering any dust to the surrounding area.

[Brief explanation of the drawing]

FIG. 1 is a model diagram showing an example of an embodiment in which a curtain provided at an air outlet of the present invention is used.

FIG. 2 is a model diagram showing a curtain provided at the air outlet of the present invention shown in FIG. 1;

[Explanation of symbols]

1: Noren 2: Case 3: Air conditioner

Claims (4)

[Claims] Claim 1: Consisting of an electret fiber sheet having a surface charge density of 1 x 10-10 coulombs/cm2 or more, a basis weight of 10 g/m2 or more to 200 g/m2 or less, and a width of 1 to 500 mm. A noren curtain installed at an air outlet that is characterized by: 2. The curtain provided at the air outlet according to claim 1, wherein the fiber sheet-like material is a nonwoven fabric. 3. The noren provided in an air outlet according to claim 2, wherein the nonwoven fabric is made of a melt-blown synthetic fiber nonwoven fabric. 4. A curtain provided at an air outlet, comprising a curtain section made of a large number of narrow sheets of electret nonwoven fabric, and a case section, and the curtain section is removable.