JPS6160352B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a low-temperature case that has an opening for storing and taking out products on the front surface, and particularly relates to a cold air passageway in which a blower and a cooler are arranged by partition plates. The present invention relates to a low-temperature case forming a storage and both outlet and suction ports.

(b) Conventional technology The following will explain based on FIGS. 1 to 4.

Reference numeral 1 denotes a low-temperature case such as a refrigerated case, the main body of which is constituted by an insulating wall 3 with an opening 2 for storing and taking out products on the front side, and a partition plate 4 is arranged at an appropriate distance from the inner wall of the insulating wall 3. A plate fin type cooler 6 comprising an upper passage 5A, a rear passage 5B and a lower passage 5C, and a left and right axial blower 7 comprising a blower motor M and a fan F.
8, a storage room 11 equipped with a plurality of shelves 9 and a fluorescent light 10 for illuminating the interior, an air outlet 12 located at the upper end of the opening 2, and a cold air passage 5 installed at the lower end of the opening 2. An air curtain is formed in the opening 2 by forcibly circulating the cold air that has been heat exchanged with the cooler 6 installed on the lower pressure side of each blower as shown by the arrow in FIG. is formed to cool the storage chamber 11. The left and right axial blowers 7 and 8 are disposed above the rear passage 5B and rotate clockwise in the same direction. Further, the opening 2 is closed by left and right doors 15 and 16, each of which has a handle 14 attached thereto and can be opened and closed. Further, a machine room 19 is formed in the lower part of the main body of the low-temperature show case 1, and a front grill 18 is provided in the front opening 17. A condenser blower is installed. Incidentally, the upper passage 5A is the top wall of the main body, that is, the top wall 3' of the heat insulating wall 3.
and the top plate 4' of the partition plate 4.

When both the left and right blowers 7 and 8 are rotated clockwise in the low-temperature show case 1, cold air directed to the right is blown out from the upper part of the fan F of each blower 7 and 8 into the upper passage 5A, and the chain line in FIG. As shown by the arrow, the cold air is biased to the right in the upper passage 5A, and the amount of cold air supplied to the left side of the storage chamber 11 is insufficient, and the inside of the storage chamber 11 is not uniformly cooled, resulting in a decrease in the cooling capacity of the left side. descend. Moreover, when the right door 16 is opened, both the left and right blowers 7 and 8 blow out, and due to the wind pressure, a large amount of cold air flows out from the upper part of the opening 2 as shown by the chain arrow in FIG. This resulted in a decrease in the cooling capacity within the storage chamber 11.

(C) Purpose of the Invention The present invention uniformly cools the inside of the storage chamber of a low-temperature show case, and also prevents a large amount of cold air from flowing out from the upper part of the opening when the door is opened, thereby reducing the cooling capacity inside the storage chamber. The purpose is to prevent.

(D) Structure of the Invention The present invention forms a cold air passageway in which a blower and a cooler are arranged inside a heat insulating wall of a low-temperature show case with an opening formed on the front surface using a partition plate, and a partition plate is provided approximately in the center of the upper passage of the cold air passageway. are disposed in the front-back direction, and at least one deflection plate is provided between the partition plate of the upper passage and the left and right side walls of the heat insulation wall so as to intersect with the flow of cold air blown out from the respective blowers,
Disposed diagonally toward the front opening so as to compensate for the imbalance of cold air, the flow of cold air blown out from each of the blowers is changed by the partition plate and the deflection plate, so that the flow of cold air is biased to one side of the cold air passage. In addition to uniformly circulating cold air inside the storage to cool the inside of the storage uniformly, the front opening can be opened and closed to prevent large amounts of cold air from flowing outside when the door is opened. The aim is to prevent the decline in

(E) Embodiment Hereinafter, an embodiment of the present invention will be described based on FIGS. 5 to 7. Note that in FIGS. 5 to 7, the same reference numerals as in FIGS. 1 to 4 are the same, and detailed explanation thereof will be omitted.

Reference numeral 22 denotes a partition plate disposed approximately in the center of the upper passage 5A in the front-rear direction, and is provided between the partition plate 4 of the upper passage 5A and the ceiling wall 3' of the heat insulating wall 3, and has a plurality of main body attachment holes 23'. The upper flange 23 having a plurality of partition plate attachment holes 24' formed thereon is fixed to the ceiling wall 3', and the lower flange 24 having a plurality of partition plate attachment holes 24' is fixed to the partition plate 4, thereby being attached to the upper passage 5A. In addition, the partition plate 22 of the upper passage 5A and the left and right side walls 3 of the heat insulating wall 3
A, as shown by the chain arrows in FIG. Similar to the partition plate 22, a deflection plate 25 is provided between the partition plate 4 of the upper passage 5A and the top wall 3' of the heat insulating wall 3.

Therefore, the cold air blown out from both the left and right blowers 7, 8 is separated into left and right sides in the upper passage 5A, and each separated cold air is rectified by the polarizing plate 25 to correct the flow direction, and the direction of flow is corrected as shown by the dashed line in FIG. As shown by the arrow, the air flows uniformly and at approximately the same speed toward the front opening.
Since the cool air flows downward as shown by the solid arrow in FIG. 7, the cold air is uniformly supplied into the storage chamber 11, and the inside of the refrigerator can be uniformly cooled. Also, the upper passage 5
It is possible to prevent the cold air from being unevenly distributed inside A and the cold air volume and wind speed from one side of the upper passageway 5A increasing.
When the opening 6 is opened, the cold air blown out from the outlet 12 is uniformly directed almost directly downward across the entire left and right width of the opening 2, as shown by the chain line arrow in Figure 7, so the amount of cold air flowing outward can be greatly reduced. At the same time, an air curtain is uniformly formed on the front surface of the front opening 2 to prevent outside air from flowing into the refrigerator, thereby preventing a decrease in cooling capacity.

(F) Effects of the Invention The present invention is a low-temperature case in which a partition plate and a deflection plate are arranged in the front and back direction in the upper passage of a cold air passage formed by a partition plate and in which blowers are installed on the rear left and right sides of the upper part. The cool air blown out from the storage compartment is separated by the partition plate, and is compensated by the deflection plate, and the rectified cold air is blown out almost uniformly from the upper passage. To uniformly and quickly cool the products being stored, and to prevent cold air from flowing out to the outside even when any of a plurality of doors provided at the front opening is opened, thereby preventing a decrease in cooling capacity. I can do it.

[Brief explanation of the drawing]

Figures 1 to 4 show a conventional example, Figures 5 to 7 show an embodiment of the present invention, Figure 1 is a perspective view of a low temperature show case, and Figure 2 is a low temperature show case shown in Figure 1. Figures 3 and 4 are a top view and upper vertical cross-sectional view of the low-temperature case shown in Figure 1, Figure 5 is a top view of the low-temperature case, and Figure 6 is a partition. A perspective view of the plate, and FIG. 7 is a longitudinal cross-sectional view of the upper part of the low-temperature show case. 1...Low temperature case, 2...Opening, 3...
Insulating wall, 3'...Ceiling wall, 4...Dividing board, 4'...Top plate, 5...Cold air passage, 5A...Upper passage, 6...
Cooler, 7, 8... Axial blower, 11... Storage room, 12... Outlet, 13... Suction port, 15, 1
6...door, 22...partition plate, 25...deflection plate.

Claims (1)

[Claims] 1 The main body is composed of an insulating wall that forms an opening for storing and taking out products that is closed by a door that can be freely opened and closed, and a partition plate is arranged at a predetermined distance from the inner wall of the insulating wall to form a cold air passage. , forming a storage chamber and oppositely facing air outlet and suction ports at both upper and lower ends of the front opening;
Axial flow type blowers rotating in the same direction are disposed on the rear left and right sides of the upper passage formed between the top wall of the main body and the top plate of the partition plate in the cold air passage, and the air blowers rotate in the same direction. In a low-temperature case in which a cooler is disposed on a lower pressure side than a blower, a partition plate for separating cold air blown from each blower is disposed in the front-rear direction approximately at the center of an upper passage of the cold air passage, and At least one deflector plate is installed between the partition plate in the upper passage of the passageway and the left and right side walls of the heat insulating wall to intersect the flow of cold air blown out from the respective blowers, and to prevent the unevenness of the cold air blown out from the air outlet. A low-temperature case is arranged diagonally toward the front opening to compensate.