JP2000356493A - Heat exchanging element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent heat exchanging rate from lowering by forming flat parts provided with no channel protrusion at the opposite ends of the plate surface over a specified range And laminating a large number of element materials, provided with a dam part at a wall-like protrusion, such that the channel protrusions intersect each other thereby ensuring press contact airtightness of the laminate element material. SOLUTION: A large number of plates 2 for forming a large number of channel protrusions 3 and wall-like protrusions 4 of the same height in parallel on the surface at a specified interval are laminated such that the channel protrusions intersect each other thus producing a laminate element 5. The wall- like protrusions 4 at the opposite ends parallel with the channel protrusions 3 are provided with dam parts 4A at the specified interval of the channel protrusions 3 and flat parts 6 devoid of the channel protrusion 3 are provided at the opposite end parts intersecting the wall-like protrusions 4 over a specified range. A press contact pressure can thereby be applied surely and uniformly when the plates 2 at the opposite ends, against which an air flow strikes when the element materials 1 are laminated, are brought into press contact against the underlying wall-like protrusions 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange element such as a heat exchange ventilator for ventilating a supply air and an exhaust air while exchanging heat.

[0002]

2. Description of the Related Art FIG.
This will be described with reference to FIG.

[0003] The element material is a corrugated material obtained by bending a thin plate of paper, metal, synthetic resin, or the like into a corrugated or sawtooth shape and a flat material, and is made into a single-sided cardboard shape. In general, a corrugated portion is formed as a spacer so as to form a ventilation path of the element by interposing a plurality of layers so as to intersect, but Japanese Patent Application Laid-Open Nos. 6-50693 and 6-101987.
In Japanese Patent Application Laid-Open Publication No. H11-157, a thin corrugated spacer portion is replaced with a urethane foamable resin ink or the like, which is thickly printed on a flat plate portion and is formed by heating and foaming. That is, the element material 101 is provided with a plurality of flow path protrusions 103 provided in parallel on a single surface of a flat plate 102 at predetermined intervals, and laminated and bonded so that the eyes of the flow path protrusions 103 intersect. By doing so, the laminated element 1
04.

[0004]

In such a conventional heat exchange element, corrugating is not required, and the thickness of the flat thin plate can be further reduced in terms of production and heat exchange efficiency. Since the spacer portion is made of a foaming resin, the mechanical strength and rigidity are low. During the laminating and bonding process, the ends of the plate 102 are cured so as to secure the adhesion to the adjacent channel protruding portions 103. The holding plate 105 is used as a tool, and the
There is a problem that there is a cutout portion 105A for releasing the end portion, and air flow leaks due to poor bonding due to a gap for insertion, which causes a decrease in heat exchange efficiency.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a heat exchange element which secures lamination adhesion airtightness of element materials and maintains heat exchange efficiency.

[0006]

In order to achieve the above object, a heat exchange element according to the present invention has a large number of flow path projections parallel to each other at predetermined intervals on one surface of a plate, and the heat exchange element on the same surface of the plate. Wall-shaped projections are provided opposite both ends parallel to the flow path projections, and a predetermined range of both end portions of the plate surface intersecting in a direction parallel to the flow path projections is not provided with the flow path projections. A configuration in which a plurality of element materials having flat portions and wall-shaped protrusions provided with ridges corresponding to predetermined intervals of the flow path protrusions in opposite directions are stacked so that the parallel directions of the flow path protrusions intersect. And

According to the present invention, there is provided a heat exchange element having high airtightness and extremely low air leakage due to adhesion of a flat portion provided at both ends of the plate surface intersecting the flow direction with adjacent flow channel protrusions. can get.

Another means is to provide a substantially hook-shaped filter mounting portion at one or both ends in the longitudinal direction of the opposing wall-shaped projections, and form a frame portion for mounting the filter.
It is possible to obtain a heat exchange element that can be integrally mounted on an element material in which filters are stacked, and that can reduce the number of parts and the number of assembly steps.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, a large number of flow path projections are arranged on one surface of a plate at predetermined intervals, and wall-like projections are opposed to both ends parallel to the flow path projections. A predetermined range of both ends of the plate surface intersecting in a direction parallel to the parallel direction of the flow channel projection is a flat portion where the flow channel projection is not provided, and the wall-shaped projection is a predetermined portion of the flow channel projection in the opposite direction. A number of element materials with ridges aligned at intervals are stacked so that the parallel directions of the flow path projections intersect. This has the effect that pressure can be evenly applied to the adhesive surface of the projection.

In addition, one of two opposing wall-like projections is provided at one end in the longitudinal direction, and the other is provided with a substantially hook-shaped filter attachment portion at both ends, thereby forming a filter attachment frame portion. In addition, the filter can be integrally mounted on the element material in which the filters are laminated, and the number of parts and the number of assembling steps can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0012]

(Example 1) As shown in FIG.
On one surface of a rectangular flat plate 2 made of an extremely thin plate of paper, metal, synthetic resin, or the like, a large number of flow path projections 3 and wall-shaped projections 4 at both end portions are arranged in parallel at predetermined intervals by resin or paper. A large number of sheets are formed at the same height, stacked so that the directions of the flow path projections 3 intersect, and adhered at intersections of the flow path projections 3 to form a laminated element 5. Further, the wall-shaped projections 4 at both ends of the plate 2 parallel to the direction of the flow path projections 3 have a ridge 4A that is aligned with a predetermined interval of the flow path projections 3 toward the inside facing the same. A predetermined range of both end portions in a direction intersecting with both end portions provided with the wall-shaped protrusion portions 4 is a flat portion 6 not provided with the flow passage protrusion portions 3,
At the time of laminating the element materials 1, the bonding pressure at the time of bonding the plate 2 at both ends corresponding to the entrance and exit of the air flow and the wall-like projection 4 thereunder can be applied uniformly and reliably to the entire surface. As a result, it is possible to provide a heat exchange element having high heat exchange efficiency with very little airflow leakage, eliminating defective bonding. In addition, the plurality of ridges 4A abut on the ends of the flow path projections 3 of the element material 1 that come up and down, thereby eliminating deformation of the plate 2 that hits the entrance and exit of the airflow and securing an opening area.

Incidentally, even if the wall is thickened to simplify the shape of the wall-shaped projection 4 and the jetty portion 4A is eliminated, both ends in the direction intersecting with both ends of the wall-shaped projection 4 are provided. If the predetermined range is a flat portion 6 where the channel projection 3 is not provided,
At the time of laminating the element materials 1, the bonding pressure at the time of bonding the plate 2 at both ends corresponding to the entrance and exit of the air flow and the wall-shaped projection 4 under the plate 2 can be applied uniformly and reliably. An extremely small heat exchange element having high heat exchange efficiency can be provided.

(Embodiment 2) As shown in FIG. 2, an element material 7 provided directly with a filter mounting portion is shown, and is provided at one end of one wall-like projection 8 provided at opposite ends of the plate 2. A substantially hook-shaped filter attachment portion 8A and the other wall-like projection 9 facing the hook shape of the filter attachment portion 8A.
And a filter mounting portion 9B having the same shape as the hook shape of the filter mounting portion 8A is provided at the other end thereof. In this case, the laminated element 10 forms a mounting frame for the filter 11, so that the filter can be mounted more closely.

When only one of the filters is used, the filter mounting portion does not need to have a bifurcated structure crossing the hook shape, and a pair of hook shapes are provided near the vertex on the same side of the plate. Simple structure.

In the above-described structure, the entrance and exit of the fine slit-shaped airflow opening all around the side surface of the laminated element 5 are formed by reliable adhesion between the upper surface of the wall-shaped projection 4 and the flat portion 6 at the end of the plate 2. A leak-free channel and a predetermined opening area are formed. In addition, the filter 11 is mounted on the frame unit integrated with the laminated element 5, so that the fine slit-shaped opening is securely covered, and the filtering of the supply / exhaust flow reduces the increase of the ventilation resistance due to the adhesion of dust in the air flow. It is to prevent.

[0017]

As is apparent from the above embodiments, according to the present invention, the bonding pressure at the time of bonding the plates at both ends, which correspond to the air inlet and outlet, and the wall-like projections underneath at the time of laminating the element materials is reduced. To prevent air flow from leaking, and to prevent the air flow from leaking, and to make the openings on the entire side surface To secure the opening area of the slit
It is possible to provide a heat exchange element having improved element production efficiency and heat exchange efficiency.

Since the filter mounting portion is formed by laminating the element materials, the filter can be integrally mounted on the element material on which the filters are laminated, so that the rigidity of the element and the mountability of the filter are improved, and the number of parts and the number of assembly steps are increased. It is possible to provide a heat exchange element having an effect of reducing the amount of heat exchange.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a heat exchange element according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the heat exchange element according to the second embodiment.

FIG. 3 is an exploded perspective view of a conventional heat exchange element.

[Explanation of symbols]

 1, 7 Element material 2 Plate 3 Flow path projection 4, 8, 9 Wall-shaped projection 4A Jetty 5, 10 Stacked element 6 Flat section 8A, 9B, 9A Filter mounting section 11 Filter

Claims (2)

[Claims] 1. A plurality of flow path projections parallel to each other at a predetermined interval on one surface of a flat plate, and wall-shaped opposed to both ends parallel to the flow path projections on the same surface of the plate. A projection is provided, and a predetermined range of both end portions of the plate surface intersecting in a direction parallel to the flow channel projection is a flat portion where the flow channel projection is not provided, and the wall-shaped projection is directed in the opposite direction. A heat exchange element comprising a large number of element materials provided with ridges arranged at predetermined intervals of the flow path projections so that parallel directions of the flow path projections intersect. 2. A substantially hook-shaped filter attachment portion is provided at one or both ends in the longitudinal direction of the opposing wall-like projections.
The heat exchange element as described.