JPS597900B2 - Blow air regulating fluid used in open housing, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to an air conditioning fluid used for rectifying and blowing cold air toward an air curtain formed in an open front area, for example, in an open showcase. Regarding improvements.

[Prior art and its problems] As is well known, the structure of an open showcase is as shown in FIG. A blower 5 and a cooler 4 are housed in, and a cold air curtain 6 is formed by blowing out cold air from the outlet into the open front area.

The air outlet is open over the entire width of the main body case 2, and is divided and combined in the longitudinal direction as shown in FIG. A plurality of air regulating fluids 7 having a defined size are stored and installed with their longitudinal sides facing each other.

Such an air regulating fluid 7 is commonly known as a honeycomb core, and the air regulating direction is indicated by an arrow H.

The air regulating fluid γ blows out and straightens the cold air blown from the cold air circulation path 3 toward the air curtain 6 so as to form a laminar flow, and plays an important role in the laminar flow characteristics of the air curtain. ing.

Furthermore, in addition to the rectifying performance of the blown air, the flow regulator 7 must also have sufficient consideration given to ease of manufacture, stability of dimensional accuracy, ease of handling, strength as a structure, and manufacturing cost.

In this respect, conventional air conditioning fluids have been used by cutting commercially available honeycomb cores into predetermined dimensions specific to open showcases.

This conventional Nicum core manufacturing process is shown in FIG.

In the figure, first, a roll 8 of a thin metal sheet material such as aluminum foil is shown.
Adhesive 10 is applied at a predetermined pitch on a board 9 cut from
is applied, and a plurality of these sheets are laminated and adhered to each other.

Next, after cutting into various sizes in a series, the core 11 is expanded in the stacking direction as shown by the arrow to form a nicum core 11 having a hexagonal opening and an aggregate of cells arranged in parallel.

Nikam Core 11 of this standard size is commercially available,
The air regulating fluid 7 for an open showcase is made by cutting the above-mentioned Nikam core 11 to the predetermined dimensions of height H1 width D and depth L shown in FIG.

However, the honeycomb core manufactured by the above-mentioned spreading method requires large-scale equipment and is therefore expensive.

Furthermore, during the final rolling process, the Nikum core 11 is not completely plastically deformed and molded, but some elastic strain remains.

For this reason, if left alone, the dimensions will shrink slightly in the stacking direction, resulting in a lack of dimensional stability.

As a countermeasure for this, in the past, the flow regulator 7...Nicum Core 11
When cutting the material, it is cut slightly thicker than the specified size, and when assembled into the open show cabinet, the shrinkage allowance is compensated for, and the size is set to the specified size while giving some compression deformation. Ta.

In addition, since aluminum foil has low strength, its edges are easily deformed by even a slight external force, making it inconvenient to handle, especially during assembly work, post-installation maintenance, and cleaning work.

Note that in order to prevent the above-mentioned local deformation, the honeycomb core 11
It is possible to increase the rigidity by increasing the thickness of the material, but
In this case, not only is it difficult to perform the rolling process shown in FIG. 3, but the aperture ratio as an air regulating fluid is reduced, and the material cost is also high, making it impractical.

[Purpose of the invention]

In view of the above-mentioned points, an object of the present invention is to provide a blowing air regulating fluid that can be manufactured with simple equipment, has stable dimensional accuracy as an air regulating fluid, and is difficult to deform and is convenient to handle. This is what I did.

[Key points of the invention]

To achieve this objective, according to the present invention, a plurality of corrugated core element plates or a corrugated and flat core element plate are arranged in parallel to form an air rectification passage between each core element plate. A fluid regulating core is constructed by laminating a large number of cells to form compartments, and a reinforcing outer frame is provided to surround the outer periphery of this fluid regulating core. They are joined together with rivets that penetrate in the stacking direction.

[Embodiments of the invention]

The present invention will be explained in detail below based on illustrated embodiments.

FIG. 4 shows the structure of an air regulating fluid 7 according to one embodiment, in which a corrugated core element plate 12 is shown. A rectifying core 13 assembled by laminating a plurality of sheets of metal, a reinforcing outer frame 14 surrounding the outer periphery of the rectifying core 13, and rivets 15 integrally joining each core element plate 12 and outer frame 14. It consists of

Between each core element plate 12, a large number of honeycomb cells 16 having a hexagonal cross section are arranged in parallel.

This cell 16 serves as a blown air straightening passage opened in the vertical direction, and straightens the air flow in the direction of arrow P that is blown out through the cell 16.

In the illustrated example, the reinforcing outer frame 14 has U-shaped divided frames 14a and 14b that abut on the front and rear of the flow regulating core 13, respectively.

FIG. 5 shows a flow regulator 7 according to another embodiment, the basic structure of which is the same as that of FIG. 4, but compared to the embodiment of FIG. Flat core element plates 1γ are assembled by being alternately stacked.

Therefore, the shape of the cells 16' formed within the core is trapezoidal.

Further, the reinforcing outer frame 14' has a box shape with predetermined dimensions.

Next, the manufacturing sequence of the blowout air regulating fluid according to the present invention will be explained with reference to FIGS. 6 to 9.

First, the thickness 0.5 determined by the predetermined height dimension H of the fluid regulator 7
The flat core element plate 17 shown in FIG. 5 is produced by unrolling a material plate from a material roll 8 of a thin aluminum plate, aluminum foil, or the like having a size of less than 1 mm, and cutting it into a predetermined width D.

On the other hand, the wave-shaped core element plate 12 is formed by bending and forming the material plate into a wave shape by passing the material plate unwound from the material roll 8 between the upper and lower molding tooth profiles 18 of 2 (vA), and then cutting it into a predetermined width dimension D. Made.

Figure 7 shows the direction of the waveform shaping machine. In the figure, 19 is a stand for the material roll 8, 20 is a guide roller, 21 (I''i cutter blade), and 22 is a holder for the core element plate 12.

The width dimension D is set by, for example, counting the feed pitch of the forming tooth profile 18 and controlling the cutting operation of the cutter blade 21.

Next, FIG. 8 shows a process for assembling the flow regulator 7 shown in FIG. 4 using the corrugated core element plate 12 made as described above.

In the figure, 23 is a workbench, and as shown in FIG. 9, alignment jig pieces 24 matching the shape of the cells 16 in the rectifying core 13 of FIG. 4 are arranged at a predetermined pitch and planted on the table 23. It is set up.

Using this workbench 23, the wave-shaped core element plates 12 are sequentially fitted into the jig pieces 24, thereby stacking them with their edges aligned.

The number of laminated sheets is selected in accordance with the predetermined depth L of the fluid regulator 7.

Next, a reinforcing outer frame 14 made of a metal plate or plastic plate that has been subjected to anti-corrosion treatment and with rivet holes 14c pre-drilled in several places on the front and rear surfaces is installed to surround the outer peripheral area of the flow regulator core 13. It will be done.

In this temporarily assembled state, a rivet hole 25 is formed in the flow regulator core 13 to match the rivet hole 14c of the reinforcing frame 14 and to open through in the stacking direction.

This drilling work is performed using a rivet drilling tool 26, just like a nailer.

In this case, the holes are drilled at locations where the alignment jig piece 22 is not present.

Next, the rivet 15 is inserted into the rivet holes 14c and 25.
Interposed through.

The rivet 15 is made of plastic, for example, and after insertion, the tip is heated to form a retaining head and caulked.

As described above, each core element plate 12 and the reinforcing outer frame 14 are integrally connected, and the air regulating fluid 7 shown in FIG. 4 is completed.

To install the fluid regulator 7 in an open showcase, arrange a plurality of fluid regulators 7 side by side in the longitudinal direction with the sides of the outer frame 14 butted against each other in the longitudinal direction as shown in FIG.
installed inside the air outlet.

The embodiment shown in FIG. 5 is also fabricated in the same manner as described above.

However, since the cell shapes of the flow regulating cores are different, the alignment jig piece 24 set on the workbench 23 in FIG. 9 is trapezoidal.

In particular, in the embodiment shown in FIG. 5, flat element plates 17 are interposed between the corrugated core element plates 12, so each element plate 12,
When stacking the waveform element plates 17, there may be slight variations in the waveform pitch of each waveform element plate 12, or
This has the advantage that even if the cutting position is slightly shifted, the layers can be stacked correctly.

In this regard, in the example shown in FIG. 4, if there is some variation in the waveform pitch, there is a risk that the crests will not overlap during the stacking process and the crests and troughs will overlap, resulting in incorrect stacking.

Although an example is shown in which the alignment jig tidying workbench 23 is used for temporary assembly of the core element plates 12 and 17 in FIG. It is also possible to temporarily assemble the element plates by sequentially stacking them within the reinforcing outer frame without using any fittings.

〔Effect of the invention〕

According to the configuration of the present invention described above, air conditioning can be performed simply and inexpensively without requiring large-scale manufacturing equipment or jigs, compared to the honeycomb core manufactured by the conventional spreading method shown in FIG. Fluids can be produced.

In addition, since it is constructed by laminating pre-formed core element plates without relying on flow regulating core expansion, it does not shrink after manufacturing and can maintain good dimensional accuracy.

Furthermore, since the outer periphery of the fluid regulating core is protected by a reinforced outer frame, no sharp cross-sections are exposed, and cleaning work during assembly or after installation can be done without worrying about deformation of the fluid regulating core, making it convenient to handle. be.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the configuration of an open showcase, Fig. 2 is a perspective view of the air regulating fluid in Fig. 1, Fig. 3 is a manufacturing process diagram of a conventional air regulating fluid, and Fig. 4 is an embodiment of the present invention. FIG. 5 is a perspective view of another embodiment, FIG.
The figure is a forming process diagram of the core element plate, Figure 7 is a configuration diagram of the wave forming machine, Figure 8 is a perspective view of the lamination assembly process of the embodiment shown in Figure 4, and Figure 9 is a partial perspective view of the workbench jig. It is a diagram. 7... ．． ．． Air regulating fluid, 12... Wave-shaped core element plate, 13... ．．・Fluid rectifier core, 14, 14'
...Reinforced outer frame, 15...Rivet, 1
6, 16'...Cell as air rectification passage, 1
7... Flat core element plate, H, D, L...
・・Prescribed height, width, and depth dimensions as an air conditioning fluid.

Claims (1)

[Claims] 1. Core element plates formed in a corrugated shape are alternately formed with each other, or core element plates formed in a wave shape and a flat core element plate are alternately formed, and cells serving as air rectification passages are defined between these core element plates. A fluid regulating core formed by laminating a large number of layers to form a rectifying core, a rectangular cylindrical reinforcing frame surrounding the outer periphery of the fluid regulating core, and a core element plate and reinforcing frame that are penetrated in the stacking direction of the core element plates to A blowout air regulating fluid comprising a rivet that is integrally connected.