JPH0229580A - Temperature control of refrigeration chamber - Google Patents
Temperature control of refrigeration chamberInfo
- Publication number
- JPH0229580A JPH0229580A JP17702688A JP17702688A JPH0229580A JP H0229580 A JPH0229580 A JP H0229580A JP 17702688 A JP17702688 A JP 17702688A JP 17702688 A JP17702688 A JP 17702688A JP H0229580 A JPH0229580 A JP H0229580A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- control
- temperature control
- control point
- storage chamber
- 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
- 238000005057 refrigeration Methods 0.000 title abstract description 3
- 238000001816 cooling Methods 0.000 claims description 38
- 238000010438 heat treatment Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (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）
本発明は保冷庫の温度を制御する温度制御方式（従来の
技術）
従来、前面に断熱扉を有する断熱箱体内の上部に四部を
有する皿部材を設けこの皿部材の四部に冷却要素（蓄冷
要素）を配置するとともに断熱箱体内の下部にヒータを
備える保冷庫が知られており、このような保冷庫では蓄
冷要素からの冷気を循環させるための送風機が備えらら
れている。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a temperature control method for controlling the temperature of a cold storage box (prior art). A cold storage box is known in which a member is provided, cooling elements (cold storage elements) are arranged in the four parts of this plate member, and a heater is provided at the bottom of the insulated box body.In such a cold storage box, cold air from the cold storage element is circulated. A blower is provided for this purpose.
従来の保冷庫では、断熱箱体内に規定される物品数納室
内の温度を温度スイッ等の温度センサーで検出して、こ
の検出温度に基づいて送風機及びヒータをオンオフ制御
している。In a conventional cold storage, the temperature inside a storage compartment for articles defined in an insulated box is detected by a temperature sensor such as a temperature switch, and a blower and a heater are controlled on and off based on the detected temperature.
つまり、従来の保冷庫では、冷却用の温度スイッチ及び
加温用の温度スイッチを備えており、これら冷却用温度
スイッチ及び加温用温度スイッチはそれぞれ独立して動
作温度が設定されている。In other words, the conventional cold storage has a cooling temperature switch and a heating temperature switch, and the operating temperatures of the cooling temperature switch and the heating temperature switch are set independently.
そして、これら冷却用温度スイッチ及び加温用温度スイ
ッチの動作によってそれぞれ送ｍ機及びヒータがオンオ
フされて、物品収納室の温度を設定温度に維持するよう
にしている。The feeder and the heater are turned on and off by the operation of the cooling temperature switch and the heating temperature switch, respectively, to maintain the temperature of the article storage chamber at the set temperature.
（発明が解決しようとする課題）
ところで、従来の保冷庫の温度制御の場合、冷却用温度
スイッチ及び加温用温度スイッチによってそれぞれ独立
して送ｍ機及びヒータへの通電を制御するようにしてい
るから、結果的に、冷却と加温とが交互に行われるから
冷却源及び加熱源のエネルギーが無駄になってしまう、
即ち、効率よく温度制御ができないという問題点がある
。(Problem to be Solved by the Invention) By the way, in the case of conventional temperature control of a cold storage, the cooling temperature switch and the heating temperature switch independently control the energization to the m transmitter and the heater. As a result, the energy of the cooling and heating sources is wasted because cooling and heating are performed alternately.
That is, there is a problem in that the temperature cannot be controlled efficiently.
本発明の目的は効率的な温度制御を行うことのできる保
冷庫の温度制御方式を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a temperature control method for a cold storage box that can perform efficient temperature control.
（課題を解決するための手段）
本発明によれば、一面に断熱扉を有し、物品収納室が形
成された断熱箱体と、該断熱箱体内に配設された冷却要
素及びヒータ手段と、該冷却要素からの冷気を前記物品
収納室に循環するための送風機とを有する“保冷庫の温
度制御に用いられ、前記物品収納室内の温度を検出する
ための温度センサーと、該温度センサーの検出温度に基
づいて前記送風機及びヒータ手段のオンオフを制御する
制御手段とを有し、前記制御手段には冷却制御から加温
制御に切り替える第１の温度制御点と、該第１の温度制
御点より高く設定され、加温制御がら冷却制御に切り替
える第２の温度制御点と、前記第１及び第２の温度制御
点の間に設定され、前記冷却制御の際前記送ｍＩｌがオ
フされるとともに前記加温制御の際前記ヒータがオンさ
れる第３の温度制御点と、前記第１及び第２の温度制御
点の間に設定されるとともに前記第３の温度制御点より
も高く設定され、前記冷却制御の際前記送風機がオンさ
れるとともに前記加温制御の際前記ヒータがオフとされ
る第４の温度制御点とが設定されていることを特徴とす
る保冷庫の温度制御方式が得られる。(Means for Solving the Problems) According to the present invention, there is provided a heat insulating box having a heat insulating door on one side and forming an article storage chamber, a cooling element and a heater means arranged in the heat insulating box. , a blower for circulating cold air from the cooling element into the article storage chamber; control means for controlling on/off of the blower and heater means based on the detected temperature; the control means includes a first temperature control point for switching from cooling control to heating control; and the first temperature control point. a second temperature control point that is set higher and switches from heating control to cooling control; and a second temperature control point that is set between the first and second temperature control points, and when the cooling control is performed, the feed mill is turned off; a third temperature control point at which the heater is turned on during the heating control, and a third temperature control point set between the first and second temperature control points and higher than the third temperature control point; A fourth temperature control point is set, wherein the blower is turned on during the cooling control and the heater is turned off during the heating control. It will be done.
（作用）
本発明では、制御手段に温度センサーからの検出温度が
入力され、制御手段はこの検出温度に基づいて送風機及
びヒータを制御する。(Function) In the present invention, the detected temperature from the temperature sensor is input to the control means, and the control means controls the blower and the heater based on this detected temperature.
この送風機及びヒータの制御を行う際、即ち物品収納室
内の温度制御を行う際、例えば第１の温度制御点に達す
る前においては、冷却制御が行われているわけであるか
ら、第３の温度制御点に達した時点で、送風機がオフと
なる０通常の場合、送風機のオフにより冷却要素から漏
れる冷気による温度降下よりも外部からの熱の受入れに
よる温度上昇の方が大きいから物品収納室の温度は上昇
する。そして、物品収納室の温度が第４の温度制御点と
なると、送風機がオンされ、冷却要素からの冷気が物品
収納室へ送られ、物品収納室の温度が低下する。同様に
して、加温制御の際には、第３の温度制御点でヒータが
オンされ、第４の温度制御点でヒータがオフされる。When controlling the blower and heater, that is, when controlling the temperature inside the article storage room, cooling control is being performed before the first temperature control point is reached, so the third temperature When the control point is reached, the blower is turned off. Normally, when the blower is turned off, the temperature rise due to the acceptance of heat from the outside is greater than the temperature drop due to the cold air leaking from the cooling element. The temperature rises. Then, when the temperature of the article storage chamber reaches the fourth temperature control point, the blower is turned on, cold air from the cooling element is sent to the article storage chamber, and the temperature of the article storage chamber is lowered. Similarly, during heating control, the heater is turned on at the third temperature control point and turned off at the fourth temperature control point.
このようにして、物品収納室が第３の温度制御点と第４
の温度制御点で規定される温度範囲に制御される。In this way, the article storage chamber is connected to the third temperature control point and the fourth temperature control point.
The temperature is controlled within the temperature range specified by the temperature control point.
ところで、外気温度が、第１の温度制御点よりも低いい
場合には、前述のように送風機がオフされても、物品収
納室の温度は下降を続けることになる。この場合には、
温度センサーで検出される物品収納室の温度が第１の温
度制御点に達すると、冷却制御から加温制御に切り替わ
る。この結果、ヒータがオンされて（第３の温度制御点
を越えているから）、物品収納室の温度が上昇する。そ
して、検出温度が第４の温度制御点に達すると一一タが
オフされ、その結果、物品収納室の温度が下降し始める
。このようにして、冷却制御から加温制御に切り替わっ
て、物品収納室温度が第３の温度制御点と第４の温度制
御点とで規定される温度範囲に制御される。By the way, if the outside air temperature is lower than the first temperature control point, the temperature in the article storage room will continue to fall even if the blower is turned off as described above. In this case,
When the temperature of the article storage chamber detected by the temperature sensor reaches the first temperature control point, cooling control is switched to heating control. As a result, the heater is turned on (since the third temperature control point has been exceeded), and the temperature in the article storage chamber increases. Then, when the detected temperature reaches the fourth temperature control point, the heater is turned off, and as a result, the temperature in the article storage chamber begins to decrease. In this way, the cooling control is switched to the heating control, and the temperature of the article storage chamber is controlled within the temperature range defined by the third temperature control point and the fourth temperature control point.
同様にして、加温制御下において、外気温が第２の温度
制御点よりも高いと、第４の温度制御点でヒータがオフ
されても、物品収納室の温度は上昇する。この場合、温
度センサーの検出温度が第２の温度制御点に達すると、
加温制御から冷却制御に切り替わる。この結果、送ｍＩ
ｉがオンされて物品収納室の温度が下降する。そして、
検出温度が第３の温度凪御点に達すると送風機がオンさ
れ、その結果、物品収納室の温度が上昇し始める。この
ようにして、加温制御から冷却制御に切り替わって、物
品収納室温度が第３の温度制御点と第４の温度制御点と
で規定される温度範囲に制御される。Similarly, under heating control, if the outside temperature is higher than the second temperature control point, the temperature in the article storage chamber will rise even if the heater is turned off at the fourth temperature control point. In this case, when the temperature detected by the temperature sensor reaches the second temperature control point,
Switches from heating control to cooling control. As a result, the sending mI
i is turned on and the temperature of the article storage chamber decreases. and,
When the detected temperature reaches the third temperature lull point, the blower is turned on, and as a result, the temperature in the article storage chamber begins to rise. In this way, the heating control is switched to the cooling control, and the temperature of the article storage chamber is controlled within the temperature range defined by the third temperature control point and the fourth temperature control point.
（実施例） 以下本発明について実施例によって説明する。(Example) The present invention will be explained below with reference to Examples.
まず、本発明が適用される保冷庫について説明する。First, a cold storage to which the present invention is applied will be explained.
第１図を参照して、保冷庫は物品収納室１が形成された
断熱箱体２を備えている。断熱箱体２はその一側面（前
面）に、物品収納室１に物品を出し入れするための開口
（図示省略）を有している。Referring to FIG. 1, the cold storage includes a heat insulating box body 2 in which an article storage chamber 1 is formed. The heat insulating box body 2 has an opening (not shown) on one side (front surface) for taking articles in and out of the article storage chamber 1.
この開口は断熱扉（図示せず）によって開閉可能にされ
ている。ここでは断熱箱体２と断熱扉とを合せて断熱庫
と呼ぶ、断熱箱体２の下面四隅には、断熱庫を移動をす
るためのキャスター３が備えられている。なお断熱箱体
２は外箱と内箱とによって構成され、外箱と内箱との間
に断熱材を設けた構造である。This opening can be opened and closed by a heat insulating door (not shown). Here, the heat-insulating box 2 and the heat-insulating door are collectively referred to as a heat-insulating store. Casters 3 are provided at the four corners of the lower surface of the heat-insulating box 2 to move the heat-insulating store. The heat insulating box body 2 is composed of an outer box and an inner box, and has a structure in which a heat insulating material is provided between the outer box and the inner box.
断熱庫の内底部にはスノコ６が置かれている。A drainboard 6 is placed at the inner bottom of the insulated storage.
また断熱庫の内側面には間隔をおいて枠部材７が対向し
ている。スノコ６及び枠部材７は物品収納空間の物品が
断熱庫の壁面に接触するのを防止する。Further, a frame member 7 is opposed to the inner surface of the heat-insulating storage at a distance. The drainboard 6 and the frame member 7 prevent the articles in the article storage space from coming into contact with the wall surface of the heat-insulating chamber.
断熱箱体２の向上部には皿部材８が備えられている０皿
部材８は枠部材７の上端間に支持されている。この結果
、断熱箱体２の内面と皿部材８との間には、流入口１１
及び流出口１２となる隙間が残されている。A plate member 8 is provided in the upper part of the heat insulating box body 2. The plate member 8 is supported between the upper ends of the frame member 7. As a result, there is an inlet 11 between the inner surface of the heat insulating box 2 and the plate member 8.
A gap is left to serve as the outlet 12.
皿部材８の凹部９には蓄冷要素（蓄冷板）１３と送風機
１４が配置されている。蓄冷要素１３としては、公知の
蓄冷剤を適当なパヅゲージ（図示せず）に封入したもの
を用い得る。このような蓄冷要素１３は庫外に取出して
外部で冷却して蓄冷させた後に凹部９に配置される。な
お凹部９に配置された蓄冷要素１３に冷凍回路の蒸発器
を組付け、凹部９に配置したまま蓄冷要素１３に蓄冷さ
せることができるようにしてもよい。A cold storage element (cool storage plate) 13 and a blower 14 are arranged in the recess 9 of the plate member 8. As the cool storage element 13, a known cool storage agent sealed in a suitable pad gauge (not shown) can be used. Such a cold storage element 13 is taken out of the refrigerator, cooled and stored outside, and then placed in the recess 9. Note that an evaporator of a refrigeration circuit may be attached to the cool storage element 13 disposed in the recess 9 so that the cool storage element 13 can store cold while being disposed in the recess 9 .
送Ｍｌｌ１１４は細動時に凹部９の冷気を流出口１２を
通して物品収納室１に送出する。その結果、物品収納室
１の空気は流入口１１を通して凹部９に流入する。した
がって凹部９内の空間と物品収納室１との間で空気は循
環し、その際、蓄冷要素１３によって物品収納室１が冷
却される。The feed Mll 114 sends the cold air in the recess 9 to the article storage chamber 1 through the outlet 12 during fibrillation. As a result, the air in the article storage chamber 1 flows into the recess 9 through the inlet 11. Therefore, air circulates between the space within the recess 9 and the article storage chamber 1, and at this time, the article storage chamber 1 is cooled by the cool storage element 13.
さらに、断熱箱体２の内面とスノコ６及び枠部材７との
間には電熱ヒータ１６が備えられている。Furthermore, an electric heater 16 is provided between the inner surface of the heat insulating box 2 and the drainboard 6 and frame member 7.
この電熱ヒータ１６及び上述の送ＪＫｆｌｌ１４は、断
熱箱体２の下面に取付けた充電可能なバッテリー１７に
接続されている。This electric heater 16 and the above-mentioned feed JKflll 14 are connected to a rechargeable battery 17 attached to the bottom surface of the heat insulating box 2.
ここで、第２図に送風ｆｉ１４及び電熱ヒータ１６を駆
動するための制御回路を示す。Here, FIG. 2 shows a control circuit for driving the air blower fi 14 and the electric heater 16.
第２図ら参照して、バッテリー１７は電源２１によって
バッテリーチャージャー２２を介して充電される。バッ
テリー１７の過充電は過充電防止スイッチ２３によって
防止される。送風１１１１４及び電熱ヒータ１６にはそ
れぞれ制御スイッチ２７及び２８が備えられ送ｍ１Ａ１
４及び電熱ヒータ１６は互いに並列にしかも選択スイッ
チ２６を介してバッテリー１７に接続されている。バッ
テリー２７に制御装置３０が接続され、この制御装置３
０６；よって後述するように制御スイッチ２７及び２８
と選択スイッチ２６が開閉制御される。またこの制御装
置３０には物品収納室１内の温度を検出するための温度
センサー２９が接続されている。Referring to FIG. 2, the battery 17 is charged by a power source 21 via a battery charger 22. As shown in FIG. Overcharging of the battery 17 is prevented by an overcharging prevention switch 23. The air blower 11114 and the electric heater 16 are equipped with control switches 27 and 28, respectively.
4 and the electric heater 16 are connected in parallel to each other and to the battery 17 via a selection switch 26. A control device 30 is connected to the battery 27, and this control device 3
06; Therefore, as will be described later, the control switches 27 and 28
The selection switch 26 is controlled to open and close. Further, a temperature sensor 29 for detecting the temperature inside the article storage chamber 1 is connected to the control device 30.
第３図に示すように、この制御装置３ｏには冷却制御か
ら加温制御に切り替える第１の温度制御点、この第１の
温度制御点より高く設定され、加温制御から冷却制御に
切り替える第２の温度制御点、第１及び第２の温度制御
点の間に設定されて、冷却制御の際送風機がオフされる
とともに加温制御の際電熱ヒータかオンされる第３の温
度制御点、及び第１及び第２の温度制御点の間に設定さ
れるとともに第３の温度制御点より高く設定され、冷却
制御の際送風機がオンされるとともに加温制御の際ヒー
タがオフされる第４の温度制御点が予め設定されている
。As shown in FIG. 3, this control device 3o has a first temperature control point for switching from cooling control to heating control, and a first temperature control point set higher than this first temperature control point for switching from heating control to cooling control. a third temperature control point, which is set between the first and second temperature control points, at which the blower is turned off during cooling control and the electric heater is turned on during heating control; and a fourth temperature control point, which is set between the first and second temperature control points and higher than the third temperature control point, and where the blower is turned on during cooling control and the heater is turned off during heating control. temperature control points are set in advance.
ここで、第１〜第３図を参照して、本発明による温度制
御につ・いて詳細に説明する。Here, temperature control according to the present invention will be explained in detail with reference to FIGS. 1 to 3.
保冷庫を運搬車に載置した際、制御装置３ｏの操作パネ
ル（図示せず）から制御モードが設定される。例えば、
加温モード（加温制御）が設定されたとして、物品収納
室１の温度が第３の温度制御点と第４の温度制御点との
間にあるものとする。When the cold storage is placed on the transport vehicle, a control mode is set from an operation panel (not shown) of the control device 3o. for example,
It is assumed that the heating mode (warming control) is set and the temperature of the article storage chamber 1 is between the third temperature control point and the fourth temperature control point.
この場合には、制御装置３０により選択スイッチ２６が
制御スイッチ２８に接続され、制御スイッチ２８がオン
されて、電熱ヒータ１６へバッテリー１７から通電が行
われる。これによって物品収納室１の温度は上昇する。In this case, the selection switch 26 is connected to the control switch 28 by the control device 30, the control switch 28 is turned on, and the electric heater 16 is energized from the battery 17. As a result, the temperature of the article storage chamber 1 increases.
温度センサー２９で検出される物品収納室１の温度が第
４の温度制御点に達すると、制御装置３０は制御スイッ
チ２８をオフする。この結果、電熱ヒータ１６への通電
が断れる。When the temperature of the article storage chamber 1 detected by the temperature sensor 29 reaches the fourth temperature control point, the control device 30 turns off the control switch 28. As a result, power to the electric heater 16 is cut off.
庫外温度が物品収納室１の温度よりも低い場合には、侵
入熱によって、物品収納室１の温度は徐徐に低下する。When the outside temperature is lower than the temperature of the article storage chamber 1, the temperature of the article storage chamber 1 gradually decreases due to the intrusion heat.
この結果、物品収納室１の温度が第３の温度制御点に達
すると、制御装置３０によって制御スイッチ２８がオン
され、電熱し−タ１６への通電が開始される。このよう
にして、物品収納室１の温度は第３の温度制御点と第４
の温度制御点との間に接続される。As a result, when the temperature of the article storage chamber 1 reaches the third temperature control point, the control switch 28 is turned on by the control device 30 and energization to the electric heater 16 is started. In this way, the temperature of the article storage chamber 1 is controlled between the third temperature control point and the fourth temperature control point.
temperature control point.
一方、庫外温度が物品収納室１の温度よりも高いと、電
熱ヒータ１６を断としても侵入熱によって、物品収納室
１の温度は徐々に上昇する。物品収納室１の温度が第２
の温度制御点に達すると、制御装置３０は選択スイッチ
２６を切り替えて、選択スイッチ２６を制御スイッチ２
７と接続する。On the other hand, if the outside temperature is higher than the temperature in the article storage chamber 1, the temperature in the article storage chamber 1 will gradually rise due to the invading heat even if the electric heater 16 is turned off. The temperature of article storage chamber 1 is the second
When the temperature control point is reached, the controller 30 switches the selection switch 26 so that the selection switch 26 becomes
Connect with 7.
即ち冷却モード（冷却制御）に切り替わる。この際、第
４の温度制御点においてすでに制御スイッチ２７は制御
装置３０によってオンされているから、送風機１４が駆
動され、蓄冷要素１３から物品収納室１に冷気が送られ
る。この結果、物品収納室１の温度が下降する。That is, it switches to cooling mode (cooling control). At this time, since the control switch 27 has already been turned on by the control device 30 at the fourth temperature control point, the blower 14 is driven and cool air is sent from the cold storage element 13 to the article storage chamber 1 . As a result, the temperature of the article storage chamber 1 decreases.
物品収納室１の温度が第３の温度制御点に達すると、制
御装置３０によって制御スイッチ２７がオフされ、送風
１１１１７の駆動が停止する。そして、庫外からの侵入
熱により物品収納室１の温度が徐徐に上昇して第４の温
度制御点に達すると、制御装置３０によって制御スイッ
チ２７がオンされ、送風機１４が駆動されて蓄冷要素１
３がら冷気が物品収納室１に送られる。このようにして
、物品収納室１の温度は第３の温度制御点と第４の温度
制御点との間に維持される。When the temperature of the article storage chamber 1 reaches the third temperature control point, the control switch 27 is turned off by the control device 30, and the driving of the air blower 11117 is stopped. When the temperature of the article storage chamber 1 gradually rises due to heat entering from outside the warehouse and reaches the fourth temperature control point, the control switch 27 is turned on by the control device 30, the blower 14 is driven, and the cool storage element 1
3, cold air is sent to the article storage chamber 1. In this way, the temperature of the article storage chamber 1 is maintained between the third temperature control point and the fourth temperature control point.
同様にして、冷却制御の際、庫外温度が第３の温度制御
点よりも低いと、物品収納室１の温度が第１の温度制御
点よりも低下する。これによって、制御装置３０によっ
て選択スイッチ２６が切り替えられて加温モード°とな
る（この際、制御スイッチ２８はオンされている）、そ
して、以下同様に温度制御される。Similarly, during cooling control, if the outside temperature is lower than the third temperature control point, the temperature of the article storage chamber 1 is lower than the first temperature control point. As a result, the selection switch 26 is switched by the control device 30 to enter the heating mode (at this time, the control switch 28 is turned on), and the temperature is controlled in the same manner thereafter.
なお、送風８１１４が停止された際には、冷気は皿部材
８の凹部９に滞留し、物品収納室１には実質上流出しな
い、従って、物品収納室１の温度が低下することはほと
んどない。Note that when the air blower 8114 is stopped, the cold air stays in the recess 9 of the dish member 8 and does not substantially flow upstream into the article storage chamber 1. Therefore, the temperature of the article storage chamber 1 hardly decreases. .
また、上述の第１〜第４の温度制御点は物品収納室１の
維持すべき温度（設定温度）に対応して適宜設定するこ
とが可能である。Moreover, the above-mentioned first to fourth temperature control points can be appropriately set in accordance with the temperature (set temperature) to be maintained in the article storage chamber 1.
（発明の効果）
以上説明したように本発明では、冷却モード（冷却制御
）及び加温モード（加温制御）が交互に繰り返えされる
ことがなく、エネルギーを無駄にすることなく効率的に
温度制御を行うことができる。また、庫外温度に無関係
に庫内温度を予め定めた温度範囲に１つの温度センサー
で精度よく維持することができるという効果もある。(Effects of the Invention) As explained above, in the present invention, the cooling mode (cooling control) and the heating mode (heating control) are not repeated alternately, and the cooling mode (cooling control) and the heating mode (heating control) are not repeated alternately. Temperature control can be performed. Another advantage is that the temperature inside the refrigerator can be maintained within a predetermined temperature range with high accuracy regardless of the temperature outside the refrigerator.
第１図は本発明が適用される保冷庫の一実施例を示す図
、第２図は本発明に用いられる制御回路の一実施例を示
す図、第３図は本発明による’４Ｂｓ廣制御を説明する
ための図である。
１４・・・送風機、１６・・・電熱ヒータ、１７・・・
バッテリー、２１・・・電源、２２・・・バッテリーチ
ャージャー、２３・・・過充電防止スイッチ、２６・・
・選択スイッチ、２７．２８・・・制御スイッチ、２９
・・・温度センサー ３０・・・制御装置。
第１図Fig. 1 is a diagram showing an embodiment of a cold storage box to which the present invention is applied, Fig. 2 is a diagram showing an embodiment of a control circuit used in the present invention, and Fig. 3 is a diagram showing an embodiment of the control circuit used in the present invention. FIG. 14...Blower, 16...Electric heater, 17...
Battery, 21...Power source, 22...Battery charger, 23...Overcharge prevention switch, 26...
・Selection switch, 27.28...Control switch, 29
...Temperature sensor 30...Control device. Figure 1
Claims (1)
箱体と、該断熱箱体内に配設された冷却要素及びヒータ
手段と、該冷却要素からの冷気を前記物品収納室に循環
するための送風機とを有する保冷庫の温度制御に用いら
れ、前記物品収納室内の温度を検出するための温度セン
サーと、該温度センサーの検出温度に基づいて前記送風
機及びヒータ手段のオンオフを制御する制御手段とを有
し、前記制御手段には冷却制御から加温制御に切り替え
る第１の温度制御点と、該第１の温度制御点より高く設
定され、加温制御から冷却制御に切り替える第２の温度
制御点と、前記第１及び第２の温度制御点の間に設定さ
れ、前記冷却制御の際前記送風機がオフされるとともに
前記加温制御の際前記ヒータがオンされる第３の温度制
御点と、前記第１及び第２の温度制御点の間に設定され
るとともに前記第３の温度制御点よりも高く設定され、
前記冷却制御の際前記送風機がオンされるとともに前記
加温制御の際前記ヒータがオフとされる第４の温度制御
点とが設定されていることを特徴とする保冷庫の温度制
御方式。1. A heat insulating box body having a heat insulating door on one side and in which an article storage chamber is formed, a cooling element and heater means disposed within the heat insulating box body, and cooling air from the cooling element to the article storage chamber. A temperature sensor for detecting the temperature inside the article storage chamber, which is used to control the temperature of a cold storage having a blower for circulating air, and a temperature sensor for controlling the on/off of the blower and heater means based on the temperature detected by the temperature sensor. The control means has a first temperature control point for switching from cooling control to heating control, and a first temperature control point that is set higher than the first temperature control point and switching from heating control to cooling control. and a third temperature control point set between the first and second temperature control points, where the blower is turned off during the cooling control and the heater is turned on during the heating control. a temperature control point, set between the first and second temperature control points and higher than the third temperature control point,
A temperature control system for a cold storage warehouse, characterized in that a fourth temperature control point is set at which the blower is turned on during the cooling control and the heater is turned off during the heating control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17702688A JPH0623634B2 (en) | 1988-07-18 | 1988-07-18 | Cooler temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17702688A JPH0623634B2 (en) | 1988-07-18 | 1988-07-18 | Cooler temperature control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0229580A true JPH0229580A (en) | 1990-01-31 |
| JPH0623634B2 JPH0623634B2 (en) | 1994-03-30 |
Family
ID=16023855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17702688A Expired - Lifetime JPH0623634B2 (en) | 1988-07-18 | 1988-07-18 | Cooler temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623634B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592867A (en) * | 1991-03-14 | 1993-04-16 | Hughes Aircraft Co | Method and device for control of spool winding time |
| JPH05310370A (en) * | 1992-05-11 | 1993-11-22 | Sumitomo Electric Ind Ltd | Wound state monitoring method |
| JPH0627818U (en) * | 1992-09-04 | 1994-04-12 | 株式会社フジクラ | Automatic alignment winding device |
| JPH0627816U (en) * | 1992-09-16 | 1994-04-12 | 株式会社フジクラ | Gate type automatic alignment winding device |
| JPH0678216U (en) * | 1993-04-16 | 1994-11-04 | 益弘 光山 | Case |
| JPH1183277A (en) * | 1997-09-02 | 1999-03-26 | Sanden Corp | Low temperature cabinet |
-
1988
- 1988-07-18 JP JP17702688A patent/JPH0623634B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592867A (en) * | 1991-03-14 | 1993-04-16 | Hughes Aircraft Co | Method and device for control of spool winding time |
| JPH0790976B2 (en) * | 1991-03-14 | 1995-10-04 | ヒューズ・エアクラフト・カンパニー | Reel winding control method |
| JPH05310370A (en) * | 1992-05-11 | 1993-11-22 | Sumitomo Electric Ind Ltd | Wound state monitoring method |
| JPH0627818U (en) * | 1992-09-04 | 1994-04-12 | 株式会社フジクラ | Automatic alignment winding device |
| JPH0627816U (en) * | 1992-09-16 | 1994-04-12 | 株式会社フジクラ | Gate type automatic alignment winding device |
| JPH0678216U (en) * | 1993-04-16 | 1994-11-04 | 益弘 光山 | Case |
| JPH1183277A (en) * | 1997-09-02 | 1999-03-26 | Sanden Corp | Low temperature cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0623634B2 (en) | 1994-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0377158B1 (en) | Dual evaporator, dual fan refrigerator with independent temperature controls | |
| JP2000130883A (en) | Cooler | |
| JPH0229580A (en) | Temperature control of refrigeration chamber | |
| JPH08223815A (en) | Charger | |
| JPH06207771A (en) | Cold and hot storage chamber | |
| CN110793258B (en) | Thawing device and refrigerator | |
| JP4368137B2 (en) | Cold storage type cold storage | |
| JPH06137733A (en) | Low temperature chamber | |
| JP3426504B2 (en) | Cooling storage | |
| JPH05240547A (en) | Device for controlling temperature in cold-storage chamber in refrigerator | |
| JP4271358B2 (en) | Cold storage type cold storage | |
| JP2672702B2 (en) | Refrigerator control device | |
| JPH0533895Y2 (en) | ||
| CN110793256A (en) | Refrigerator and refrigerator working method | |
| JPH10311650A (en) | Insulating container for on-vehicle | |
| JP2001272150A (en) | Refrigerator | |
| JP2001066012A (en) | Peltier unit | |
| JP3446280B2 (en) | Cold and hot storage | |
| JPH1163780A (en) | Low temperature storage chamber | |
| JPH0391676A (en) | Low temperature box | |
| JPH0737175Y2 (en) | Cooling and heating device for vending machines | |
| JPH0737174Y2 (en) | Cooling and heating device for vending machines | |
| JPH02103372A (en) | Defrost controller | |
| JPH064760A (en) | Temperature controller for inside of automatic vending machine | |
| JPH03158681A (en) | Low temperature chamber |