JPS5844493B2 - Emergency warning system for refrigerated vehicles - Google Patents
Emergency warning system for refrigerated vehiclesInfo
- Publication number
- JPS5844493B2 JPS5844493B2 JP8795079A JP8795079A JPS5844493B2 JP S5844493 B2 JPS5844493 B2 JP S5844493B2 JP 8795079 A JP8795079 A JP 8795079A JP 8795079 A JP8795079 A JP 8795079A JP S5844493 B2 JPS5844493 B2 JP S5844493B2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- relay
- emergency
- refrigerated
- door
- 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.)
- Expired
Links
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
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【発明の詳細な説明】
本発明は冷蔵冷凍車輛における緊急警報装置の改良に係
り、特に非常スイッチおよびドアスイッチの操作によっ
て励磁されるリレーの常閉接点を冷凍サイクルの電源回
路に組込んで安全性を高めた緊急警報装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an emergency alarm system for a refrigerated/refrigerated vehicle, and in particular, a normally closed contact of a relay that is energized by the operation of an emergency switch and a door switch is incorporated into the power supply circuit of a refrigeration cycle to improve safety. Concerning an emergency warning device with enhanced functionality.
各種生鮮食料品の輸送に使用される冷蔵冷凍車輛では冷
凍コンテナ内の断熱性能を維持するために、ホテーの各
部は気密性に優れた構造になっており、コンテナ内外の
しゃ音性は著しく高い。In refrigerated and frozen vehicles used to transport various perishable foods, each part of the refrigerated container has a highly airtight structure in order to maintain the insulation performance inside the container, and the sound insulation inside and outside the container is extremely high. .
そのために、コンテナ内に誤って人が閉じ込められた際
に肉声等によって外部へ連絡することはほとんど不可能
であり、これを知らないで冷凍装置を運転すると人命に
係わる事態に発展するおそれがあり、冷蔵車輛において
も窒息死の危険がある。For this reason, if someone is accidentally trapped inside a container, it is almost impossible to contact the outside through voice, etc., and if you operate the refrigeration equipment without knowing this, there is a risk of a situation that could endanger your life. There is also a risk of suffocation in refrigerated vehicles.
このような危険を避けるために、従来冷凍コンテナ警報
スイッチを設置し、これを操作することによってキャビ
ン内に設けられたパイロットランプあるいはブザーを作
動させると同時に冷凍サイクルを停止するようにした装
置も案出されている。In order to avoid such dangers, a conventional system has been proposed in which a refrigerated container alarm switch is installed, and when operated, a pilot lamp or buzzer installed in the cabin is activated and the refrigeration cycle is stopped at the same time. It's being served.
（実公昭５０−８３１．６号公報参照）。(Refer to Utility Model Publication No. 50-831.6).
けれども、この装置では冷凍コンテナのドアの開閉状態
とは無関係に冷凍サイクルの運転停止が行われるので、
冷凍コンテナ室内に閉じ込められた者が側らかの事情に
よりいったん警報スイッチを投入したのちにスイッチを
解除して冷凍サイクルの運転を再開させてしまうという
欠点がある。However, with this device, the operation of the refrigeration cycle is stopped regardless of whether the door of the refrigerated container is open or closed.
There is a drawback in that a person trapped inside the refrigerating container may turn on the alarm switch for some reason, then release the switch and restart the operation of the refrigerating cycle.
本発明は従来装置における上述の欠点を除去すべくなさ
れたものであって、非常スイッチおよびドアスイッチの
操作によって励磁され、かつ自己保持される１月−一の
常閉接点を冷凍サイクルの電源回路に組み込みドアの開
扉によりリレーの自己保持を解除しない限り冷凍サイク
ルの運転を再開できないようにして安全性を高めた冷蔵
冷凍車輛の緊急警報装置を提出することを目的とする。The present invention has been made in order to eliminate the above-mentioned drawbacks of conventional devices, and uses a normally-closed contact, which is energized and self-maintained by the operation of an emergency switch and a door switch, in a power supply circuit of a refrigeration cycle. The purpose of the present invention is to provide an emergency warning device for a refrigerated/refrigerated vehicle that is built into a refrigerator and has improved safety by preventing the operation of the refrigeration cycle from being resumed unless the self-holding of the relay is released by opening the door.
以下図面を参照して本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
第１図は警報回路を簡潔に示したものであり、一端を接
地したシャシ−バッテリー１とシャシ−ホーン２との間
に非常スイッチ３が直列に接続されている。FIG. 1 shows a simple alarm circuit, in which an emergency switch 3 is connected in series between a chassis battery 1 and a chassis horn 2, one end of which is grounded.
この非常スイッチ３は、冷凍コンテナ内の入口近傍の側
壁に設置されてあり、緊急時にこれを閉路すればシャシ
−バッテリー１のパワーがシャシ−ホーン２に伝わり、
これを作動して大きな警報音を発生する。This emergency switch 3 is installed on the side wall near the entrance inside the refrigerated container, and when it is closed in an emergency, the power of the chassis battery 1 is transmitted to the chassis horn 2.
Activate this to generate a loud alarm.
したがって、人が誤って冷凍コンテナ内に閉じ込められ
た場合に非常スイッチ３を連続的断続的に押圧すればシ
ャシ−ホーン２が連続的断続的に鳴動し、周囲の人達に
危急を伝えることができる。Therefore, if a person is accidentally trapped in a refrigerated container, if the emergency switch 3 is pressed continuously and intermittently, the chassis horn 2 will sound intermittently, thereby informing the surrounding people of the emergency. .
第２図は上記警報回路を冷凍サイクルの電源回路に組込
んだ本発明の一実施例を示したものであり、一端を接地
したシャシ−バッテリー４とシャシ−ホーン５との間に
非常スイッチ６を直列に接続し、この非常スイッチ６を
冷凍コンテナ内の入口近傍の壁面に設置しておく。FIG. 2 shows an embodiment of the present invention in which the above-mentioned alarm circuit is incorporated into the power supply circuit of a refrigeration cycle. are connected in series, and this emergency switch 6 is installed on the wall near the entrance inside the refrigerated container.
この非常スイッチ６は２つの接点６ａ、６ｂを有する連
動スイッチで構成されており、その第２接点６ｂはリレ
ー７の常開接点７ａと並列接続された上、シャシ−バッ
テリー４、リレー７、冷凍コンチアのドアスイッチ８と
直列接続されている。This emergency switch 6 is composed of an interlocking switch having two contacts 6a and 6b, and the second contact 6b is connected in parallel with the normally open contact 7a of the relay 7. It is connected in series with Concia's door switch 8.
図中、符号９は冷凍サイクルを示し、これと冷凍機用バ
ッテリー１０との間にはすｌ−−７の常閉接点７ｂ、冷
凍スイッチ１１およびセルモータ１２が直列に接続され
ている。In the figure, reference numeral 9 indicates a refrigeration cycle, and between this and a battery 10 for a refrigerator, a normally closed contact 7b of 1-7, a refrigeration switch 11, and a starter motor 12 are connected in series.
このように構成された第２図の回路において、非常スイ
ッチ６を押圧すると、シャシ−ホーン５にシャシ−バッ
テリー４のパワーが伝わりこれを鳴動させる。In the circuit shown in FIG. 2 constructed in this manner, when the emergency switch 6 is pressed, the power of the chassis battery 4 is transmitted to the chassis horn 5, causing it to sound.
冷凍コンテナのドアが開いておればドアスイッチ８が開
路しているのでスイッチ６の抑圧によってもリレー７は
励磁されないがコンテナのドアが閉いている場合にはド
アスイッチ８が閉路しているので非常スイッチ６の抑圧
によってその第２接点６ｂが閉路し、リレー７は励磁さ
れ常開接点７ａにより自己保持される。If the door of the refrigerated container is open, the door switch 8 is open, so even if the switch 6 is suppressed, the relay 7 will not be energized, but if the door of the container is closed, the door switch 8 is closed, so there is an emergency. When the switch 6 is depressed, its second contact 6b is closed, and the relay 7 is energized and self-held by the normally open contact 7a.
それと同時にリレー７の常閉接点７ｂが開路するので冷
凍機スイッチ１１の状態の如何を問わず冷凍サイクルは
作動しない。At the same time, the normally closed contact 7b of the relay 7 is opened, so the refrigeration cycle does not operate regardless of the state of the refrigerator switch 11.
ドアを開くとドアスイッチ８は開路してリレー７は自己
保持を解かれるのでリレー接点７ａ 、７ｂは原状に復
帰し、冷凍機スイッチ１１によって制御される。When the door is opened, the door switch 8 is opened and the relay 7 is released from self-holding, so that the relay contacts 7a and 7b return to their original states and are controlled by the refrigerator switch 11.
上述したように本発明によれば、シャシ−ホーンを鳴動
させる非常スイッチおよびドアスイッチの操作によって
励磁され、かつ自己保持されるリレーの常閉接点を冷凍
サイクルの電源回路に組み込んだから、非常スイッチの
操作によってシャシ−ホーンを連続的または断続的に鳴
動させて近隣の人達に危急を伝えることができると共に
ドアの開扉によりリレーの自己保持を解除しない限り冷
凍サイクルの運転を再開できないからきわめて高い安全
性を確保することができる。As described above, according to the present invention, the normally closed contact of the relay, which is energized and self-maintained by the operation of the emergency switch that sounds the chassis horn and the door switch, is incorporated into the power supply circuit of the refrigeration cycle. The chassis horn can be operated continuously or intermittently to alert neighbors to the emergency, and the refrigeration cycle cannot be restarted unless the self-holding of the relay is released by opening the door, making it extremely safe. It is possible to ensure sex.
第１図は警報回路を示した回路図、第２図は警報回路を
冷凍サイクルの電源回路に組込んだ本発明の一実施例を
示した回路図である。
１．４・・・・・・シャシ−バッテリー、２，５・・・
・・シャシ−ホーン、３，６・・・・・・非常スイッチ
、７・・・・・・リレー、７ａ・・・・・・常開接点、
７ｂ・・・・・・常閉接点、８・・・・・・ドアスイッ
チ、９・・・・・冷凍サイクル、１０・・・・・・冷凍
機用バッテリー １１・・・・・・冷凍機スイッチ、１
２・・・・・・セルモータ。FIG. 1 is a circuit diagram showing an alarm circuit, and FIG. 2 is a circuit diagram showing an embodiment of the present invention in which the alarm circuit is incorporated into a power supply circuit of a refrigeration cycle. 1.4... Chassis battery, 2,5...
... Chassis horn, 3, 6 ... Emergency switch, 7 ... Relay, 7a ... Normally open contact,
7b... Normally closed contact, 8... Door switch, 9... Freezing cycle, 10... Battery for refrigerator 11... Freezer switch, 1
2... Cell motor.
Claims (1)
ホーンと電源との間に組み込まれた非常スイッチと、こ
の非常スイッチの投入により前記冷凍コンテナのドアに
設けられたドアスイッチが閉じていることを条件として
付勢されるリレーと、このリレーの付勢により当該リレ
ーの付勢を保持する保持回路と、前記リレーの付勢によ
り冷凍サイクルの電源回路を停止させるスイッチとを備
えた冷蔵冷凍車輛における緊急警報装置。1 Installed inside the refrigerated container of a refrigerated freezer truck,
An emergency switch built in between the horn and the power source, a relay that is energized on the condition that the door switch provided on the door of the refrigerated container is closed when the emergency switch is turned on, and the attachment of this relay. An emergency warning device for a refrigerating/refrigerating vehicle, comprising: a holding circuit that maintains the energization of the relay by the energization of the relay; and a switch that stops the power supply circuit of the refrigeration cycle by the energization of the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8795079A JPS5844493B2 (en) | 1979-07-11 | 1979-07-11 | Emergency warning system for refrigerated vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8795079A JPS5844493B2 (en) | 1979-07-11 | 1979-07-11 | Emergency warning system for refrigerated vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5613228A JPS5613228A (en) | 1981-02-09 |
| JPS5844493B2 true JPS5844493B2 (en) | 1983-10-04 |
Family
ID=13929158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8795079A Expired JPS5844493B2 (en) | 1979-07-11 | 1979-07-11 | Emergency warning system for refrigerated vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844493B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6275880U (en) * | 1985-10-29 | 1987-05-15 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201409031D0 (en) * | 2014-05-21 | 2014-07-02 | Icelandic Group Uk Ltd | Improvements in or relating to the packaging of food |
| WO2016088153A1 (en) * | 2014-12-04 | 2016-06-09 | 三菱電機株式会社 | Freezing device |
| CN112319338B (en) * | 2020-10-21 | 2021-11-19 | 三一汽车制造有限公司 | Box door alarm control system, box door alarm control method and working vehicle |
-
1979
- 1979-07-11 JP JP8795079A patent/JPS5844493B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6275880U (en) * | 1985-10-29 | 1987-05-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5613228A (en) | 1981-02-09 |
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