JPH0285983U

JPH0285983U -

Info

Publication number: JPH0285983U
Application number: JP16438688U
Authority: JP
Priority date: 1988-12-21
Filing date: 1988-12-21
Publication date: 1990-07-06

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を適用した冷凍庫の
断面図、第２図ａは冷却運転時の本考案の要部に
おける風の流れを示す図、第２図ｂは除霜運転時
の本考案の要部における風の流れを示す図である
。１…冷凍庫本体、２…外箱、３…内箱、４…空
気流通路、５…吹出口、６…吸入口、７…第１の
ダンパ、８…第２のダンパ、９…蒸発器、１０…
送風機、１１…温風循環路、１２…除霜ヒータ、
１３…第３のダンパ。 Figure 1 is a sectional view of a freezer to which an embodiment of the present invention is applied, Figure 2a is a diagram showing the flow of air in the main parts of the present invention during cooling operation, and Figure 2b is during defrosting operation. FIG. 3 is a diagram showing the flow of wind in the main part of the present invention. DESCRIPTION OF SYMBOLS 1... Freezer main body, 2... Outer box, 3... Inner box, 4... Air flow passage, 5... Air outlet, 6... Inlet, 7... First damper, 8... Second damper, 9... Evaporator, 10...
Blower, 11... Hot air circulation path, 12... Defrost heater,
13...Third damper.

Claims

[Scope of Claim for Utility Model Registration] (1) It has an air flow path for circulating air in the area to be frozen, and an evaporator of a refrigeration circuit disposed within the air flow path, and is capable of cooling operation and defrosting operation. In a defrosting system for a refrigeration device, the defrosting system includes: a first damper disposed in an air flow passage downstream of the evaporator; and a second damper disposed in an air flow passage upstream of the evaporator. a damper; a hot air circulation path connecting an air flow path between the first damper and the evaporator and an air flow path between the second damper and the evaporator; and the hot air circulation path. a blower disposed in an air flow path between one end side communication port and the other end side communication port of the path; an air flow path between the first damper and the second damper and the warm air; A defrosting heater disposed in a ventilation closed circuit formed by a circulation path; and a third damper disposed at a communication port on the first damper side of the hot air circulation path. A defrosting system for refrigeration equipment featuring: (2) The first to third dampers are opened and closed by the wind pressure of the blower, and the first and second dampers are opened and closed by the wind pressure of the wind flowing in the air flow passage in the direction from the second damper to the first damper. The third damper has a structure that opens by the wind pressure of the wind flowing in the hot air circulation path from the communication port on the second damper side toward the third damper, and the blower is in defrosting operation. 2. The defrosting system for a refrigeration apparatus according to claim 1, wherein the defrosting system is configured to rotate in reverse at times.