JPH0258683U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 4 show a first embodiment of the cold air trap according to the present invention, in which Figure 1 is a vertical sectional view of the cold air trap installed and in use, Figure 2 is a partially cutaway front view of a refrigerator-freezer, FIG. 3 is a sectional view taken along the line AA in FIG. 1, and FIG. 4 is a longitudinal sectional view illustrating the operation of the cold air trap in a state in which negative pressure is eliminated. 5 and 6 show a second embodiment of the cold air trap according to the present invention, FIG. 5 is a plan view, and FIG. 6 is a sectional view taken along the line BB in FIG. 5. FIG. 7 is a schematic longitudinal sectional view of the main parts of a third embodiment of the cold air trap according to the present invention. FIG. 8 is a schematic vertical sectional view of the main parts of a fourth embodiment of the cold air trap according to the present invention. 1... Storage body, 4... Door, 17... Drain port, 1
9...Drain pot, 20...Inner cylinder wall, 21...
Outer cylinder wall, 22...bottom wall, 23...water reservoir chamber, 25
... Drain channel, 26 ... Drain pipe wall, 29 ... Overflow port, 31 ... Partition member, 38 ... Drain room, 3
4...trap chamber, 35...ventilation path, 35a...
Vent, T...Cold air trap, W...Drain water,
h...Depth of partition.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cold air trap placed facing a drain port 17 for discharging drain water W of a refrigerator-freezer has a drain pot 19 attached to the lower part of the drain port 17; In order to store the drain water W at a specified water level in the water storage chamber 23, there is provided a drainage channel for discharging the drain water W overflowing beyond the specified water level to the outside of the drain pot 19. The drain pot 19 is provided with a partition member 31 whose lower end is immersed in the drain water of the water reservoir chamber 23. The inner partition member 31 allows the water reservoir chamber 23 to be connected to the drain chamber 3.
3 and a trap chamber 34, the drain chamber 33 communicates with the drain port 17, and the trap chamber 34 communicates with the outside air via a ventilation channel 35 separate from the drain channel 25. A cold air trap for a refrigerator/freezer. (2) The cold air trap placed facing the drain port 17 for discharging drain water W of the refrigerator-freezer has a drain pot 19 attached to the lower part of the drain port 17, and the drain water W accumulates in the drain pot 19. In order to store drain water W at a specified water level in the water storage chamber 23, a drain channel 25 is provided to discharge drain water W overflowing beyond the specified water level to the outside of the drain pot 19. 19 is provided with an intermediate partition member 31 whose lower end is immersed in the drain water of the water reservoir chamber 23;
3 and a trap chamber 34; the drain chamber 33 communicates with the drain port 17; and the trap chamber 34 communicates with the outside air via the drain channel 25 or another ventilation channel 35. Partition member 3 for drain water W at specified water level
1, the partition depth h is such that the internal negative pressure is at least 4 mm.
A cold air trap for a refrigerator-freezer, characterized in that the outside air is set so as not to enter the drain chamber 33 from the lower end of the partition member 31 until it reaches Ag.