JPH03244989A - Refrigerating cold show case - Google Patents
Refrigerating cold show caseInfo
- Publication number
- JPH03244989A JPH03244989A JP4016490A JP4016490A JPH03244989A JP H03244989 A JPH03244989 A JP H03244989A JP 4016490 A JP4016490 A JP 4016490A JP 4016490 A JP4016490 A JP 4016490A JP H03244989 A JPH03244989 A JP H03244989A
- Authority
- JP
- Japan
- Prior art keywords
- door
- warning
- input
- signal
- opened
- 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
- 238000001514 detection method Methods 0.000 claims description 10
- 238000007689 inspection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
Landscapes
- Freezers Or Refrigerated Showcases (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Refrigerator Housings (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、冷凍庫、冷蔵庫或いは冷凍冷蔵庫。[Detailed description of the invention] <Industrial application field> The present invention relates to a freezer, a refrigerator, or a refrigerator-freezer.
保冷庫、ショーケース等（以下冷凍冷蔵ショーケースと
いう）の改良に関するもので、特に扉の開閉状態を検知
して警報する機構を備えた冷凍冷蔵ショーケースに関す
るものである。This invention relates to the improvement of cold storages, showcases, etc. (hereinafter referred to as frozen/refrigerated showcases), and particularly relates to frozen/refrigerated showcases equipped with a mechanism that detects the open/closed state of the door and issues an alarm.
〈従来の技術〉
従来の冷凍冷蔵ショーケースの構成を第４図乃至第７図
に基づいて説明する。<Prior Art> The structure of a conventional freezer/refrigerator showcase will be explained based on FIGS. 4 to 7.
図において、ｌはハンドル２を有する＠３と、点検Ｍ４
を備えた冷凍冷蔵ショーケースて、座部に絶縁製の脚５
か設けられている。６は点検Ｍ４の下部に扉３と接する
ようビス７によって取付けられたリミットスイッチて、
扉３の開閉を検知し、屏３を開放してから所定時間経過
後に制ａ機構８を介して警報ブザーを鳴らし、扉３か開
放状態のままであることを警報するよう構成されている
。In the figure, l is @3 with handle 2 and inspection M4
It is a refrigerated showcase with insulated legs on the seat.
Or is provided. 6 is a limit switch attached to the bottom of inspection M4 with screw 7 so as to be in contact with door 3,
The opening/closing of the door 3 is detected, and after a predetermined period of time has elapsed since the folding screen 3 has been opened, an alarm buzzer is sounded via a control mechanism 8 to warn that the door 3 remains open.
第６図は扉３か閉してリミットスイッチ６かＯＮの状態
、第７図は屏３か開放されてリミットスイッチ６かＯＦ
Ｆの状態てあり、扉３か開放されリミットスイッチ６か
ＯＦＦになってから所定時間経遇すると、制御ｍ構８を
介して警報ブザーか鳴らされる。Figure 6 shows the state where the door 3 is closed and the limit switch 6 is ON, and Figure 7 shows the state where the folding screen 3 is open and the limit switch 6 is OFF.
If a predetermined period of time elapses after the door 3 is opened and the limit switch 6 is turned OFF, an alarm buzzer will sound via the control system 8.
このように扉３を開放してから所定時間経過後に警報ブ
ザーを鳴らすのは、扉の閉め忘れ、及び扉か閉した時の
反動で開いてしまった場合の警告、並びに扉を開いたと
き、即ブザーか鳴らないようにするためである。The purpose of sounding the alarm buzzer after a predetermined period of time has elapsed after opening the door 3 is to warn you if you forget to close the door, or if the door opens due to the reaction when you close it, and also to warn you when the door is opened. This is to prevent the buzzer from sounding immediately.
〈発明か解決しようとする課題）
従来の冷凍冷蔵オープンショーケースは以上のように構
成されているのて、扉か閉した時の反動で開いてしまっ
た場合でも所定時間経過するまでは警報ブザーか鳴らな
いため、判定に時間がかかり、その間に庫内温度及び収
納部品の温度が上昇してしまい収容部品の品質を損う問
題かあった。(Problem to be solved by the invention) Conventional freezer/refrigerator open showcases are constructed as described above, so even if the door opens due to the reaction when the door is closed, the alarm buzzer will not sound until a predetermined period of time has elapsed. Because the alarm does not sound, it takes time to make a determination, and during that time the temperature inside the refrigerator and the temperature of the stored parts rise, which may impair the quality of the stored parts.
本発明は上記のような問題点を解消するために成された
もので、屏が閉じた時の反動で開いてしまった時は即座
にブザーを鳴らして警報することかてきる冷凍冷蔵オー
プンショーケースを得ることを目的とするものである。The present invention has been made to solve the above-mentioned problems, and is a refrigerated/refrigerated open show system that immediately sounds a buzzer to alert you when the folding screen opens due to the reaction when it is closed. The purpose is to obtain a case.
〈課題を解決するための手段〉
上記の課題を解決する為、本発明に係る冷凍冷蔵オープ
ンショーケースは、開閉可能な屏を有すると共に、扉と
本体との密着部分にリミットスイッチを設け、屏を開放
して所定時間経過後に警報ブザーを鳴らすようにした冷
凍冷蔵オープンショーケースにおいて、前記扉のハンド
ルに人体接触の有無を検知するセンサーを設けると共に
、同人体検知センサー及び前記リミットスイッチの入力
信号に基づいて扉の開閉状態を判定し、人体検知信号か
入力されていない状態てリミットスイッチからＯＦＦ信
号か入力されると、即座に前記警報ブザーを鳴らす制ｍ
Ｉｌ構を具備したことを特徴とするものである。<Means for Solving the Problems> In order to solve the above-mentioned problems, the freezer/refrigerator open showcase according to the present invention has a folding screen that can be opened and closed, and a limit switch is provided in the close contact between the door and the main body. In the refrigerated/refrigerated open showcase which is configured to sound an alarm buzzer after a predetermined time has elapsed after the door is opened, a sensor for detecting the presence or absence of human body contact is provided on the handle of the door, and an input signal of the human body detection sensor and the limit switch is provided. The system determines the open/closed state of the door based on the threshold value, and immediately sounds the alarm buzzer when an OFF signal is input from the limit switch while no human body detection signal is input.
It is characterized by having an Il structure.
〈作用〉
本発明に係る冷凍冷蔵オープンショーケースは上記のよ
うに構成されているので、通常の状態で扉を開いたとき
は、人体接触信号か入力され、屏か開かれる為、従来と
同様、扉を開いても即ブザーか鳴らず所定時間経過後に
閉め忘れかあった場合のみ警報ブザーを鳴らす。<Function> Since the refrigerated open showcase according to the present invention is constructed as described above, when the door is opened in the normal state, a human body contact signal is input and the folding screen is opened, so it is the same as the conventional case. The alarm buzzer does not sound immediately when the door is opened, but only if the user forgets to close the door after a predetermined period of time has elapsed.
一方、屏を閉したとき、その反動で扉が開いてしまった
場合は、人体接触信号か入力されていないにもかかわら
ず、リミットスイッチからＯＦＦ信号か入力されること
になる為、制御機構は屏か開いていると判定し、即座に
警報ブザーを鳴らす。On the other hand, if the door opens due to the reaction when the screen is closed, an OFF signal will be input from the limit switch even though no human contact signal is input, so the control mechanism will It determines that the screen is open and immediately sounds an alarm buzzer.
〈実施例〉
以下に本発明の実施例を第１図乃至第３図に基づいて説
明する。<Example> An example of the present invention will be described below based on FIGS. 1 to 3.
冷凍冷蔵オープンショーケース本体の構成は、第４図乃
至第７図に示した従来のものと同様である為、ここては
説明を省略する。The structure of the freezer/refrigerator open showcase body is the same as that of the conventional one shown in FIGS. 4 to 7, so the explanation will be omitted here.
本実施例では第１図に示すように扉３のハンドル２に人
体の接触の有無を検知する人体検知センサー９を設け、
その信号を制御機構８にスカするようにしている。制御
機構８は人体検知センサー９からの信号をアンプ１０．
シュミット回路１１を介してＣＰＵ１２の入力ボート１
１に入力し、りジットスイッチ６からの信号をＣＰＵＩ
２の入力ボートＩ２に入力し後述するようにして屏３の
開閉状態を判定し、扉３かある条件のものと開放状態に
あると判定したとき、出力回路１３を介して警報ブザ−
１４を鳴らすよう構成されている。In this embodiment, as shown in FIG. 1, a human body detection sensor 9 is provided on the handle 2 of the door 3 to detect the presence or absence of human body contact.
The signal is sent to the control mechanism 8. The control mechanism 8 converts the signal from the human body detection sensor 9 into an amplifier 10.
Input port 1 of CPU 12 via Schmitt circuit 11
1, and the signal from the legit switch 6 is input to the CPUI.
2, the open/closed state of the folding screen 3 is determined as described later, and when it is determined that the door 3 is in the open state under a certain condition, an alarm buzzer is output via the output circuit 13.
It is configured to ring 14.
第２図（ａ）、（ｂ）はスイッチのタイムチャートで、
（ａ）は警報ブザー１４か鳴らないタイミンク、（ｂ）
は警報ブザ−１４か鳴るタイミングを示しており、又、
第３図はその制御フローチャートを示している。Figures 2 (a) and (b) are switch time charts,
(a) is the timing when alarm buzzer 14 does not sound, (b)
indicates the timing at which alarm buzzer 14 will sound, and
FIG. 3 shows the control flowchart.
制御ａ構８には２つの信号が入力される。即ち、人体検
知センサー９からの信号とリミットスイッチ６からの信
号てあり、人体か扉３のハンドル２に触れると人体検知
センサー９の接点か閉じ、床面と制御機構８の回路とが
導通して電流が流れ、アンプ１０．シュミット回路１１
を介してＣＰＵ１２の入力ポート１１の電圧は旧ｇｈレ
ベルからＬｏｗレベルとなり、又屏３か開くとり政ット
スイッチ６かＯＦＦとなりＣＰＵ１２の入力ポートＩ２
の電圧はＬｏｗレベルから旧ｇｈレバルとなり、第２図
（ａ）、（ｂ）はこの２つの信号のタイムチャートを表
わしたちのである。Two signals are input to the control a mechanism 8. That is, there is a signal from the human body detection sensor 9 and a signal from the limit switch 6, and when a human body touches the handle 2 of the door 3, the contact of the human body detection sensor 9 closes, and the floor surface and the circuit of the control mechanism 8 are electrically connected. A current flows through the amplifier 10. Schmitt circuit 11
The voltage at the input port 11 of the CPU 12 changes from the old GH level to the Low level via
The voltage changes from the Low level to the old gh level, and FIGS. 2(a) and 2(b) show time charts of these two signals.
いま、人体かハンドル２に触れてＣＰＵ１２の入力ポー
ト１１電圧かＨｉｇｈレベルからＬｏｗレベルになって
から屏３か開いてリミットスイッチ６かＯＦＦとなり、
ＣＰ Ｕ １２の入力ポートＩ２の電圧がＬｏｗレベル
から旧ｇｈレベルになったときは、通常の扉の開放動作
であり、このときは、即座に警報ブザーか鳴らぬよう第
３図に示すようメモリＦて、その状態を記憶し、所定時
間経過すると扉３の閉め忘れを警告する為に警報ブザ−
１４を鳴らす。Now, when the human body or the handle 2 is touched, the input port 11 voltage of the CPU 12 goes from High level to Low level, and then the folding screen 3 is opened and the limit switch 6 is turned OFF.
When the voltage at the input port I2 of the CPU 12 changes from the low level to the old gh level, it is a normal door opening operation. The condition will be memorized, and after a predetermined period of time, an alarm buzzer will sound to warn you that you have forgotten to close the door 3.
Ring 14.
一方、ｉＲ３か閉じたときの反動で、再び開いたときの
ように人体検知センサー９から接触信号が入力されず、
ＣＰＵ１２の入力ボート■１の電圧はＨｉｇｈレベルの
ままのとき、扉３が開いてリミットスイッチ６からＯＦ
Ｆ信号か入力されてＣＰＵ］２の入力ポートＩ２の電圧
かＬｏｗレベルからＨｉｇｈレベルになったときは、上
記したように、扉３か閉じたときの反動で開いて隙間か
出来てしまっていると判定し、即座に警報ブザ−１４を
鳴らしてニー従って、屏か閉したときの反動て開いてし
まった場合は、従来のもののように所定時間経過後に警
報するのてはなく、すなわち即座に警報することかてき
るのて扉の閉め忘れによる庫内及び収納物品の温度上昇
を最小限に抑えることかできる。On the other hand, due to the reaction when the iR3 was closed, the contact signal was not input from the human body detection sensor 9 like when it was opened again.
When the voltage of the input port ■1 of the CPU 12 remains at High level, the door 3 opens and the limit switch 6 turns off.
When the F signal is input and the voltage at input port I2 of CPU]2 goes from low level to high level, as mentioned above, door 3 opens due to the reaction when it is closed, creating a gap. If the screen is opened due to the recoil of closing, the system will immediately sound the alarm buzzer 14, instead of issuing an alarm after a predetermined period of time as in conventional systems. By issuing an alarm, it is possible to minimize the temperature rise inside the refrigerator and the stored items due to forgetting to close the door.
〈発明の効果〉
以上に説明したように、本発明による冷凍冷蔵オーブン
ショーケースによると、扉か閉したときの反動で再び開
いてしまった場合等には即座に警報ブザーによって警報
することかてきる為、扉の閉め忘れを確実に防止し、庫
内及び収容物品の温度上昇を防止することがてきる。<Effects of the Invention> As explained above, according to the freezer/refrigerator oven showcase according to the present invention, if the door opens again due to the reaction after closing, an alarm can be immediately sounded by the alarm buzzer. As a result, it is possible to reliably prevent the door from being forgotten to close, and to prevent the temperature inside the refrigerator and the stored items from rising.
第１図は、本発明の実施例を示す制ｖ４ｍ構の回路図。
第２図は、そのタイムチャート、
第３図は、その制御フローチャート、
第４図乃至第７図は、冷凍冷蔵オーブンショーケースの
構成を示す図て、
第４図は、正面図、
第５図は、第４図のＡ−Ａ断面図、
第６図は、扉開時の第５図Ｂ部の拡大図、第７図は、扉
開時の第５図Ｂ部の拡大図である。
尚、図中１は冷凍冷蔵ショーケース、 ２はハンドル、
３は屏、 ４は点検蓋、 ５は脚。
６はリミットスイッチ、 ７はビス、 ８は制御機構、
９は人体検知センサー、１０はアンプ。
１１はシュミット回路、 １２はＣＰＵ、 １３は
出力回路、１４は警報ブザーである。FIG. 1 is a circuit diagram of a control v4m structure showing an embodiment of the present invention. Fig. 2 is a time chart thereof, Fig. 3 is a control flowchart thereof, Figs. 6 is an enlarged view of section B in FIG. 5 when the door is open, and FIG. 7 is an enlarged view of section B in FIG. 5 when the door is open. In addition, in the figure, 1 is a frozen/refrigerated showcase, 2 is a handle,
3 is a folding screen, 4 is an inspection lid, and 5 is a leg. 6 is a limit switch, 7 is a screw, 8 is a control mechanism,
9 is a human body detection sensor, and 10 is an amplifier. 11 is a Schmitt circuit, 12 is a CPU, 13 is an output circuit, and 14 is an alarm buzzer.
Claims (1)
リミットスイッチを設け、扉を開放して所定時間経過後
に警報ブザーを鳴らすようにした冷凍冷蔵ショーケース
において、前記扉のハンドルに人体の接触の有無を検知
するセンサーを設けると共に、同人体検知センサー及び
前記リミットスイッチの入力信号に基づいて扉の開閉状
態を判定し、人体検知信号が入力されていない状態でリ
ミットスイッチからＯＦＦ信号が入力されると即座に前
記警報ブザーを鳴らす制御機構を具備して成ることを特
徴とする冷凍冷蔵ショーケース。In a refrigerated/refrigerated showcase that has a door that can be opened and closed, a limit switch is installed in the close contact between the door and the main body, and an alarm buzzer sounds after a predetermined period of time has elapsed after the door is opened. A sensor is provided to detect the presence or absence of contact, and the open/closed state of the door is determined based on the human body detection sensor and the input signal of the limit switch, and an OFF signal is input from the limit switch when no human body detection signal is input. A freezer/refrigerator showcase comprising a control mechanism that immediately sounds the alarm buzzer when the warning buzzer is activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4016490A JPH03244989A (en) | 1990-02-21 | 1990-02-21 | Refrigerating cold show case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4016490A JPH03244989A (en) | 1990-02-21 | 1990-02-21 | Refrigerating cold show case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03244989A true JPH03244989A (en) | 1991-10-31 |
Family
ID=12573127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4016490A Pending JPH03244989A (en) | 1990-02-21 | 1990-02-21 | Refrigerating cold show case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03244989A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100339532B1 (en) * | 1997-10-21 | 2002-07-18 | 구자홍 | Device and method for controlling cool air of refrigerator |
| CN104061751A (en) * | 2014-03-13 | 2014-09-24 | 苏州天趣信息科技有限公司 | Refrigerator with warning device |
| WO2017145387A1 (en) * | 2016-02-26 | 2017-08-31 | 三菱電機株式会社 | Refrigerator |
-
1990
- 1990-02-21 JP JP4016490A patent/JPH03244989A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100339532B1 (en) * | 1997-10-21 | 2002-07-18 | 구자홍 | Device and method for controlling cool air of refrigerator |
| CN104061751A (en) * | 2014-03-13 | 2014-09-24 | 苏州天趣信息科技有限公司 | Refrigerator with warning device |
| WO2017145387A1 (en) * | 2016-02-26 | 2017-08-31 | 三菱電機株式会社 | Refrigerator |
| JPWO2017145387A1 (en) * | 2016-02-26 | 2018-06-07 | 三菱電機株式会社 | refrigerator |
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