JPS58142678U - frost detection device - Google Patents
frost detection deviceInfo
- Publication number
- JPS58142678U JPS58142678U JP4111882U JP4111882U JPS58142678U JP S58142678 U JPS58142678 U JP S58142678U JP 4111882 U JP4111882 U JP 4111882U JP 4111882 U JP4111882 U JP 4111882U JP S58142678 U JPS58142678 U JP S58142678U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- detection device
- frost detection
- circuit
- frost
- 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.)
- Granted
Links
Landscapes
- Defrosting Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の霜検知装置の断面図、第２図は本考案−
実施例の霜検知装置を有する蒸発器の平面図、第３図は
前記霜検知装置の断面図、第４図は霜検知装置の概略電
気回路図である。
７・・・・・・蒸発器、１２・・・・・・霜検知装置、
１３・・・・・・発振部、１４・・・・・・受振部、１
６．１６’・・・・・・圧電素子、１７．１７’・・・
・・・振動面、２２・・・・・・発振回路、２３・・・
・・・受振回路、２４・・・・・・駆動回路。Figure 1 is a cross-sectional view of a conventional frost detection device, and Figure 2 is a cross-sectional view of a conventional frost detection device.
FIG. 3 is a plan view of an evaporator having a frost detection device according to an embodiment, FIG. 3 is a sectional view of the frost detection device, and FIG. 4 is a schematic electrical circuit diagram of the frost detection device. 7... Evaporator, 12... Frost detection device,
13...Oscillating section, 14...Receiving section, 1
6.16'...Piezoelectric element, 17.17'...
... Vibration surface, 22 ... Oscillation circuit, 23 ...
...Receiving circuit, 24... Drive circuit.
Claims (1)
び受振部を所定間隔を存して互に相対向して配置した霜
検知器を蒸発器一部に設置し、前記発振部の圧電素子を
一定の発振レベルで発振させる発振回路と、前記受振部
の圧電素子に機械的振動が加えられた時に圧電素子が発
する電気信号を検知する発振回路と、前記受振回路の出
力により除霜制御を行う駆動回路とより構成される霜検
知装置。。A frost detector is installed in a part of the evaporator, in which an oscillating part and a receiving part, each having a vibrating surface in which a piezoelectric element is provided in a casing, are arranged facing each other at a predetermined interval, and the piezoelectric element of the oscillating part is An oscillation circuit that oscillates at a constant oscillation level, an oscillation circuit that detects an electrical signal generated by the piezoelectric element when mechanical vibration is applied to the piezoelectric element of the vibration receiver, and defrosting control based on the output of the vibration receiver circuit. A frost detection device consisting of a drive circuit. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4111882U JPS58142678U (en) | 1982-03-23 | 1982-03-23 | frost detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4111882U JPS58142678U (en) | 1982-03-23 | 1982-03-23 | frost detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58142678U true JPS58142678U (en) | 1983-09-26 |
| JPH0221745Y2 JPH0221745Y2 (en) | 1990-06-12 |
Family
ID=30052308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4111882U Granted JPS58142678U (en) | 1982-03-23 | 1982-03-23 | frost detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58142678U (en) |
-
1982
- 1982-03-23 JP JP4111882U patent/JPS58142678U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221745Y2 (en) | 1990-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58142678U (en) | frost detection device | |
| JPS58142677U (en) | frost detection device | |
| JPS5974493U (en) | Shield structure of indoor sensor | |
| JPS60145735U (en) | composite crystal oscillator | |
| JPS6051455U (en) | powder detector | |
| JPS58106774U (en) | object detection device | |
| JPS60152934U (en) | Piezoelectric liquid sensor | |
| JPS5954871U (en) | detection device | |
| JPS59104040U (en) | temperature detector | |
| JPS58154429U (en) | object detection device | |
| JPS588793U (en) | Blower vibration monitoring device | |
| JPS6316732U (en) | ||
| JPS60150475U (en) | Raindrop detector for automatic wiper device | |
| JPS604027U (en) | receiving device | |
| JPS5849338U (en) | Capacitive disc playback device | |
| JPS59137620U (en) | level control circuit | |
| JPS60144197U (en) | Telemeter transmitter | |
| JPS6129599U (en) | Structure of ultrasonic transmitter/receiver | |
| JPS6147756U (en) | Automatic wiper speed switching control device | |
| JPS5856345U (en) | Remote control device for tape recorder song selection mechanism | |
| JPS6111240U (en) | Tuning fork remote switch | |
| JPS6025235U (en) | crystal oscillator | |
| JPS60174311U (en) | UHF oscillation circuit | |
| JPS6047357U (en) | Clock generation circuit | |
| JPS60158310U (en) | Temperature compensated crystal oscillator circuit |