JPH0470986U - - Google Patents
Info
- Publication number
- JPH0470986U JPH0470986U JP11340690U JP11340690U JPH0470986U JP H0470986 U JPH0470986 U JP H0470986U JP 11340690 U JP11340690 U JP 11340690U JP 11340690 U JP11340690 U JP 11340690U JP H0470986 U JPH0470986 U JP H0470986U
- Authority
- JP
- Japan
- Prior art keywords
- pressure difference
- electric heater
- evaporator
- compressor
- cooling case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010257 thawing Methods 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Defrosting Systems (AREA)
Description
第１図乃至第３図は本考案の一実施例を示すも
ので、第１図は冷却ケースの冷媒回路図、第２図
は除霜回路の電気回路図、第３図は除霜制御のタ
イムチヤートである。
図中、１……圧縮機、４……蒸発器、５……電
熱ヒータ、６……差圧スイツチ、８……タイマ。
Figures 1 to 3 show one embodiment of the present invention. Figure 1 is a refrigerant circuit diagram of a cooling case, Figure 2 is an electrical circuit diagram of a defrosting circuit, and Figure 3 is a defrosting control circuit diagram. It is a time chart. In the figure, 1... Compressor, 4... Evaporator, 5... Electric heater, 6... Differential pressure switch, 8... Timer.
Claims (1)
動を停止させるとともに、該圧縮機の停止中に電
熱ヒータに通電し蒸発器に付着した霜を除去する
冷却ケースの除霜回路において、 前記蒸発器の入口側と出口側の冷媒の圧力差を
検知するとともに、該圧力差が設定圧力差より小
さいときは前記電熱ヒータへ通電し、該圧力差が
設定圧力差より大きいときは該電熱ヒータへの通
電を停止すする差圧スイツチを設けた ことを特徴とする冷却ケースの除霜回路。[Scope of Claim for Utility Model Registration] Removal of a cooling case that stops driving a compressor at predetermined time intervals using a timer, and energizes an electric heater to remove frost attached to an evaporator while the compressor is stopped. In the frost circuit, a pressure difference between the refrigerant on the inlet side and the outlet side of the evaporator is detected, and when the pressure difference is smaller than a set pressure difference, the electric heater is energized, and the pressure difference is larger than the set pressure difference. A defrosting circuit for a cooling case, characterized in that a differential pressure switch is provided to stop power supply to the electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11340690U JPH0470986U (en) | 1990-10-31 | 1990-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11340690U JPH0470986U (en) | 1990-10-31 | 1990-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0470986U true JPH0470986U (en) | 1992-06-23 |
Family
ID=31860990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11340690U Pending JPH0470986U (en) | 1990-10-31 | 1990-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0470986U (en) |
-
1990
- 1990-10-31 JP JP11340690U patent/JPH0470986U/ja active Pending
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