JP4424149B2 - Open showcase - Google Patents

Description

  The present invention relates to an open showcase of a cold air circulation type, and more particularly to a structure of an air curtain outlet that blows out a cold air curtain toward the front of the interior.

  First, FIG. 3 shows a configuration of a double-layer air curtain type multi-stage open showcase as the cold air circulation type open showcase described above. In FIG. 3, reference numeral 1 denotes a case main body of an open showcase that becomes a heat-insulating housing. Between the outer front case 1a and the inner case 1b, a double cold air circulation duct is provided on the outer periphery of the inner case 1b. 2 and 3 are defined. Air curtain outlets 2a and 3a are connected to the cool air circulation ducts 2 and 3 on the front upper side of the case body 1, and air curtain suction ports 2b and 3b are connected to the lower side. It is open. In addition, a cooler (evaporator of the refrigerator) 4 and a fan 5 are provided in the cool air circulation duct (inner duct) 2 in the inner layer, and a fan 6 is provided in the cool air circulation duct (outer duct) 3 in the outer layer.

  In addition, a honeycomb rectifier 7 is provided at the air curtain outlets 2a and 3a, and two layers of cool air curtains A and B are blown out through the honeycomb rectifier 7 at the front of the inside of the cabinet during the cool-down operation of the showcase. Keep it cool in the cabinet. In addition, 8 is a merchandise display shelf, and 9 is a canopy portion provided on the upper front surface of the case body 1.

  On the other hand, in the cold air circulation type open showcase, as a means for blowing and forming an air curtain having a high heat shielding performance on the front surface of the interior during the cold storage operation, the air outlet is divided into two inside and outside the air curtain outlet. After providing the partition plate, the honeycomb rectifying body is disposed outside the partition plate to blow out the air curtain, and circulating cold air is passed through a slit defined between the partition plate and the front wall of the ceiling panel behind. An open showcase is known in which a part of the air curtain is blown out at high speed toward the front of the interior as an air curtain, and the air curtain is effectively prevented from being disturbed by the formation of the slit air curtain. The detailed structure is shown in FIG. 4 (see, for example, Patent Document 1).

  In FIG. 4, 10 is a cold air circulation duct defined between the outer box 1a and the inner box 1b of the case body 1, 10a is an air curtain outlet, and a partition plate 11 is arranged at the outlet 10. The air curtain outlet 10a is bisected into the inside and outside, and the honeycomb rectifier 7 is disposed outside the air curtain A to blow out the air curtain A, and the front panel wall of the ceiling panel of the partition plate 11 and the inner box 1b (in front of the ceiling panel). A part of the circulating cold air is blown out at a high speed from the nozzle portion 11a opening at the tip through a narrow slit 13 defined between the edge portion 1c (which is formed by bending the edge portion downward) The slit air curtain C is formed inside the curtain A). Reference numeral 11b denotes a wind direction guide provided at the upper end of the partition plate 11.

Here, the partition plate 11 is a long plate having a length corresponding to the frontage dimension of the showcase, and is fixed to the front surface of the ceiling panel front wall 1c to form an air curtain nozzle between the two as described below. A slit 13 having a predetermined width is secured. That is, in the partition plate mounting structure shown in FIG. 4, mounting brackets (pedestals that also serve as spacers) 12 are screwed or welded to the front wall 1c of the ceiling panel at a plurality of locations along the longitudinal direction. The partition plate 11 is fixed to the front end surface of the attachment metal 12.
Japanese Patent Laid-Open No. 11-325698

  By the way, in the conventional structure shown in FIG. 4, the partition plate 11 provided at the air curtain outlet is attached to the ceiling panel front wall 1c of the inner box 1b via the attachment metal 12. For this purpose, the partition plate is attached. In addition to an increase in the number of parts required, the number of assembly steps for screwing and welding the attachment metal 12 to the front wall 1c of the ceiling panel increases and the cost increases.

  The present invention has been made in view of the above points, and its purpose is to reduce the number of parts and assembly man-hours required for assembling the partition plate provided at the air curtain outlet for cost reduction. The purpose is to provide an improved open showcase.

In order to achieve the above object, according to the present invention, a cold air circulation type open that blows and forms a cold air curtain on the front surface of the case body through a cold air circulation duct defined between the outer box and the inner box of the case body. It is a showcase, provided with a partition plate that bisects the air outlet into the air curtain outlet opened at the upper front edge of the case body, and supporting the partition plate on the front panel wall of the inner box, A honeycomb rectifier is placed on the outside with the partition plate as a boundary to blow out an air curtain, and a part of the circulated cool air is stored in the cabinet through a slit defined between the inner surface of the partition plate and the front wall of the ceiling panel. In what is blown out at high speed toward the front surface, the embossing is extruded and formed at a plurality of locations in the longitudinal direction of the partition plate, and the partition plate is placed on the front wall of the ceiling panel facing the emboss. Embossed to form bulging toward, against both the embossed edge defining a cold air outlet slit of the required spacing between the partition plate and the ceiling panel front wall.

  According to the above configuration, in the assembly process of fixing the partition plate to the front wall of the front panel, there is no need for a separate mounting bracket, and the partition plate is fixed in place simply by abutting the embosses and screwing them together. As a result, the number of parts and the number of assembly steps can be reduced compared with the conventional structure, thereby reducing the cost. This embossing can be formed at the same time when the partition plate and the front wall of the ceiling panel are pressed.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on the examples shown in FIGS. In addition, in the figure of an Example, the same code | symbol is attached to the member corresponding to FIG. 4, and the description is abbreviate | omitted.

  In the structure of the embodiment shown in FIG. 1 and FIG. 2, the partition plate 11 is the same as in FIG. 4 except that the air curtain blowout port 10 a is provided with a partition plate 11 that bisects the blowout port. Is fixed to the ceiling panel front wall 1c of the inner box 1b, and the partition plate 11 and the ceiling panel front wall 1c are swelled in a trapezoidal shape in a plurality of locations along the longitudinal direction thereof. Embosses 11c and 1d with screw holes are formed by extrusion at the same position. The embosses 11c and 1d can be simultaneously extruded in a process of pressing and sheet metal processing the partition plate and the ceiling panel.

  In order to attach the partition plate 11 to the ceiling panel front wall 1c, the end faces of the embosses 11c and 1d are abutted back and forth, and the two are fastened with a fixing screw 15 to attach the partition plate 11 to the ceiling of the inner box. It is fixedly supported on the front surface of the panel, and a slit 13 having a required width is defined between the partition plate 11 and the ceiling panel front wall 1c in this assembled state. The partition plate 11 is bent in an L shape at the left and right ends, and fixed to the ceiling panel side so that its side wall is abutted against the ceiling panel front wall to form an air curtain ejection nozzle (duct). .

Cross-sectional view of the air curtain outlet according to an embodiment of the present invention 1 is an exploded perspective view of the partition plate and ceiling panel in FIG. Outline configuration diagram of a cold air circulation open showcase Cross-sectional view of a conventional air curtain outlet of an open showcase

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case main body 1a Outer box 1b Inner box 1c Ceiling panel front wall 1d Emboss 7 Honeycomb rectifier 10 Cold air circulation duct 10a Air curtain outlet 11 Partition plate 11c Emboss 15 Fixing screw

Claims (1)

A cold air circulation open showcase that blows and forms a cold air curtain on the front of the case body through a cold air circulation duct defined between the outer box and the inner box of the case body, and opens at the upper front edge of the case body A partition plate that divides the air outlet into the air curtain outlet is provided at the air curtain outlet, and the partition plate is supported by the front wall of the ceiling panel of the inner box. converting mechanism for balloon forming an air curtain, in that the part of the circulating cold air through the image made a slit between the inner surface and the ceiling panel front wall of the partition plate to blown at high speed towards the-compartment front partition plate The emboss is extruded and formed at a plurality of locations in the longitudinal direction, and the embossed bulge toward the partition plate is formed on the front wall of the ceiling panel so as to face the emboss. Open showcase, characterized in that it defines a cold air outlet slit of the required spacing between the partition plate and the ceiling panel front wall against the boss end surface.

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