JPS61191851A - Method of operating showcase - Google Patents
Method of operating showcaseInfo
- Publication number
- JPS61191851A JPS61191851A JP2446586A JP2446586A JPS61191851A JP S61191851 A JPS61191851 A JP S61191851A JP 2446586 A JP2446586 A JP 2446586A JP 2446586 A JP2446586 A JP 2446586A JP S61191851 A JPS61191851 A JP S61191851A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- showcase
- business hours
- evaporator
- refrigerator
- 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
Landscapes
- Freezers Or Refrigerated Showcases (AREA)
- Devices That Are Associated With Refrigeration Equipment (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
【発明の詳細な説明】
本発明は冷凍又は冷蔵ショーケースの冷凍装置を制御し
て庫内の温度を最適に維持するとともに節電を図るショ
ーケースの運転方法に関し、その目的とする処は庫内の
照明を点灯させている店舗の営業時から照明を消灯きせ
る非営業時に切り替える際の温度変化をスムースに行な
い非営業時におけるショーケースの温度管理を適正に行
なうことにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of operating a showcase for controlling the refrigeration device of a freezer or refrigerated showcase to maintain the temperature inside the refrigerator optimally and to save power. To properly manage the temperature of a showcase during non-business hours by smoothly changing the temperature when switching from the store business hours when the lights are turned on to the non-business hours when the lights are turned off.
以下図面により本発明の詳細な説明する。The present invention will be explained in detail below with reference to the drawings.
第1図(1)は前面に商品収納及び取出用の開口(3)
を形成した断熱壁(2)にて本体を構成してなる冷凍又
は冷蔵ショーケースで、前記断熱壁内に蒸発器(4)及
び送風機(5)を設置する第1通路(6)と、送風機(
7)を設置する第2通路(8)と、複数枚の棚(9)及
び複数本の螢光灯等の照明(10)を備える庫内(11
)と、前記開口の上下両端に相対向する前記両通路の吹
田及び吸込両口(12)(13)(14>(15)とを
形成してなり、第1及び第2両通路(6)(8)を矢印
の如く両送風損(5)(7)により夫々循環される冷気
流及び保護気流でもって開口(3)に温度の異なる二層
のエアーカーテン(At )(A2)を形成して庫内(
11)を冷却するものである。破線にて囲まれる(16
)は冷凍装置で、冷媒圧縮機(17)□凝縮器(18)
□液電磁弁(19)□温度式膨張弁(20)□蒸発器(
4)□圧縮機(17)を環状に接続して冷媒を圧縮□凝
縮液化□減圧□蒸発気化きせる公知の冷凍サイクルを構
成する。Figure 1 (1) shows the opening (3) for storing and taking out products on the front.
A freezing or refrigerating showcase whose main body is composed of an insulating wall (2) formed with (
7), and an interior (11) equipped with a plurality of shelves (9) and a plurality of lights (10) such as fluorescent lights.
), and Suita and suction ports (12), (13), (14>(15)) of both the passages facing each other are formed at both upper and lower ends of the opening, and both the first and second passages (6) are formed. As shown by the arrows in (8), a two-layer air curtain (At) (A2) with different temperatures is formed in the opening (3) by the cold air flow and protective air flow circulated by the two wind losses (5) and (7), respectively. Inside the refrigerator (
11). Surrounded by a broken line (16
) is a refrigeration system, which includes a refrigerant compressor (17) and a condenser (18).
□ Liquid solenoid valve (19) □ Temperature expansion valve (20) □ Evaporator (
4) Compressors (17) are connected in a ring to form a known refrigeration cycle in which refrigerant is compressed, condensed, liquefied, decompressed, and evaporated.
(21)は庫内(11)の温度を制御する制御装置で、
該装置には前記ショーケース内の冷気温度を常時検出す
る温度センサー(22)と、蒸発器(4)への液冷媒の
供給を制御する液電磁弁(19)とが接続されている。(21) is a control device that controls the temperature inside the refrigerator (11);
A temperature sensor (22) that constantly detects the temperature of cold air in the showcase and a liquid electromagnetic valve (19) that controls the supply of liquid refrigerant to the evaporator (4) are connected to the device.
この装置は第2図に示す如く電源(23)と、比較及び
タイマ機能等を内蔵し各信号を比較する処理部(24)
と制御すべき各温度設定値を格納し庫内(11)の温度
樟応じた成る時間幅の信号を出す設定部〈25)と、照
明(10)の点灯又は消灯に伴ない店舗の営業又は非営
業時の信号を出す昼夜切替部(26)と前記温度センサ
ー(22)と、前記処理部からの信号によりオン・オフ
して液電磁弁(19)の開閉動作を制御する出力部(2
7)とにより構成きれている。As shown in Figure 2, this device includes a power supply (23) and a processing section (24) that has built-in comparison and timer functions and compares each signal.
and a setting section (25) that stores each temperature setting value to be controlled and outputs a signal with a time width corresponding to the temperature inside the warehouse (11), and a setting section (25) that stores the temperature setting values to be controlled and outputs a signal with a time width corresponding to the temperature inside the warehouse (11), and a setting section (25) that outputs a signal with a time width corresponding to the temperature inside the warehouse (11). A day/night switching unit (26) that outputs a signal during non-business hours, the temperature sensor (22), and an output unit (2) that controls the opening/closing operation of the liquid electromagnetic valve (19) by turning on and off according to the signal from the processing unit.
7).
次にか振る制御装置(21)によるショーケース(1)
の各温度制御を第3図乃至第5図により説明する。尚各
図において(L、)は温度センサー(22)にて検出し
た循環冷気の温度曲線、(Lりは液電磁弁(19)の開
閉を制御する出力部(27)の信号波形、(L、)は昼
夜切替部(26)の信号波形、(TS’)は営業時にお
ける下限設定値、(TD)は営業特番こおける上限設定
値、(TN)は非営業時における下限設定値、(TD’
)は非営業時における上限設定値、(6丁)は照明(1
0)の消灯による夜間自動設定変更の温度幅を示す。Next, the showcase (1) by the shaking control device (21)
Each temperature control will be explained with reference to FIGS. 3 to 5. In each figure, (L,) is the temperature curve of the circulating cold air detected by the temperature sensor (22), (L is the signal waveform of the output part (27) that controls the opening and closing of the liquid solenoid valve (19), and (L) is the temperature curve of the circulating cold air detected by the temperature sensor (22). , ) is the signal waveform of the day/night switching unit (26), (TS') is the lower limit setting value during business hours, (TD) is the upper limit setting value in the special sales number, (TN) is the lower limit setting value during non-business hours, ( TD'
) is the upper limit setting value during non-business hours, (6 lights) is the lighting (1 light)
0) shows the temperature range of automatic setting change at night when the lights are turned off.
第3図はオン・オフ及びナイトセットバック両制御の特
性を示し、昼夜切替信号(L、)がOFFのとき、即ち
照明(10)が点灯している店舗の営業時間には下限設
定値(’I’S)で出力信号(L、)をOFF、上限設
定値(より)で出力部(27)の出力信号(Lり゛をO
Nしてオン・オフ制御を繰り返して行ない、昼夜切替信
号(Ll)のONに伴ない出力信号(L、)をOFFと
して液電磁弁(19)を強制的に閉じて夜間自動設定変
更と称されるナイトセットバックに移り、照明(10〉
が消灯している店舗の非営業時間には下限設定値(IN
”)で出力信号(L、)をOFF、上限設定値(TD’
)で出力信号(L、)をONt、てオンパオフ制御を行
なう。Figure 3 shows the characteristics of both on/off and night setback control, and when the day/night switching signal (L,) is OFF, that is, during store business hours when the light (10) is on, the lower limit setting value ( 'I'S) turns the output signal (L, ) OFF, and the upper limit setting value turns the output signal (L, ) of the output section (27) OFF.
N and repeats on/off control, and when the day/night switching signal (Ll) turns on, the output signal (L,) is turned off to forcibly close the liquid solenoid valve (19), which is called automatic night setting change. Moving on to the night setback, lighting (10)
The lower limit setting value (IN
”) to turn off the output signal (L, ) and set the upper limit value (TD').
), the output signal (L, ) is turned on to perform on-off control.
第4図はオン・オフ、ナイトセットバック及びデユーテ
ィサイクルの各制御の特性を示し、営業時間には処理部
(24)のタイマにより周期(τ)で(τ、)の聞出力
信号(Lm)を0FFt、てオン・オフ制御の間、強制
的に液電磁弁(19)を閉じ蒸発器(4)への液冷媒の
供給を間欠的に停止する昼間のデユーティサイクル制御
を行ない、又非営業時間には周期(τ)で(τハ((τ
s)> (τ3))の聞出力信号(L、)を0FF1.
、てオン・オフ、ナイトセットバック及び強制尚に液電
磁弁(19)を閉じ蒸発器′(4)への液冷媒を間欠的
に停止゛する夜間のデユーティサイクルの各制御を行な
う。尚、この制御においても、営業時から非営業時に移
項するときには液電磁弁(19)が閉じられ、夜間自動
設定変更となる。Figure 4 shows the characteristics of on/off, night setback, and duty cycle control. During business hours, the timer of the processing unit (24) outputs the output signal (Lm ) during on/off control, forcibly closes the liquid solenoid valve (19) and performs daytime duty cycle control in which the supply of liquid refrigerant to the evaporator (4) is intermittently stopped; During non-business hours, the period (τ) is (τha((τ
s)> (τ3)), the output signal (L,) is set to 0FF1.
, on/off, night setback, and nighttime duty cycle control in which the liquid solenoid valve (19) is closed and the liquid refrigerant to the evaporator' (4) is intermittently stopped. Also in this control, when changing from business hours to non-business hours, the liquid solenoid valve (19) is closed, resulting in automatic setting change at night.
第5図はデユーティサイクル制御におけるオーバーライ
ドの特性を示し、(I’R)はデユーティサイクルの温
度幅、(L4)はオーバーライドの信号波形を示す。デ
ユーティサイクルによる冷却運転停止中にショーケース
(1)内の麺皮が鎖線あ如く上昇し商品負荷に悪影響を
及ぼす場谷がある。この場合には冷却運転停止時間(昼
間は(τ、)、夜間は(τN))の間に温度が ((T
S) + (TR)又は(TN)+(TR))を超える
と即時に出力信号(LりがONとなり、強制的に冷却運
転に復帰させるオーバーライドを行なう。尚51次のデ
ユーティサイクルによる冷却運転停止は温度が(TS)
又は(TN)迄下がり((τ)−(τ、)又は(で)−
(τい)の後に行なわれる。FIG. 5 shows the override characteristics in duty cycle control, where (I'R) shows the temperature width of the duty cycle, and (L4) shows the override signal waveform. During the cooling operation stop due to the duty cycle, the noodle skins in the showcase (1) rise as shown in the chain line, which has a negative impact on the product load. In this case, the temperature ((T
S) + (TR) or (TN) + (TR)), the output signal (L) is immediately turned ON and an override is performed to forcefully return to cooling operation. Operation stops due to temperature (TS)
or down to (TN) ((τ)-(τ,) or (at)-
It is carried out after (τui).
従ってか〜るショーケース(1)の運転方法によれば、
照明(10)が消灯されこの照明の発熱が冷凍負荷とな
らない店舗の非営業時には、照明(10’)の発熱症冷
凍負荷どな□る営業時に比べ照明(10)の発熱公文冷
凍負橋を軽くすることができるので、非営業時における
庫内温度の設定値を営業時における庫内温度の設定値よ
りも高く設定して冷凍装置(品の軽負荷運iが図れ、し
かも営業時から非営業時に移項するときには、蒸発器(
4)への液冷媒の供給番強制的に停止きせることにより
、庫内温度が自動的に上昇して非営業時の設定値に到達
することに籠るので、営一時から非営業時への切り替え
がスムースに行なえ、ショーケース(1)の温度管理が
容易゛となる。゛
上述した本発明によれば、庫内の照明の点灯する営業時
、消灯する非営業時に応じたショーケースの温度管理が
行なえると共に、営業時から非営業時又はこの逆の切り
替えをスムースに行なうことができる。Therefore, according to the operating method of the showcase (1),
When the store is not open, when the light (10) is turned off and the heat generated by this light does not become a refrigeration load, the heat generated by the light (10) is lower than when the store is open. Since the refrigerator can be made lighter, the temperature inside the refrigerator during non-business hours can be set higher than the temperature inside the refrigerator during business hours, allowing for light-load operation of the refrigeration equipment (items). When transferring items during business hours, the evaporator (
4) By forcibly stopping the supply of liquid refrigerant to the refrigerator, the temperature inside the refrigerator will automatically rise and reach the set value for non-business hours, so switching from business to non-business hours will be possible. can be carried out smoothly, and the temperature of the showcase (1) can be easily controlled.゛According to the present invention described above, the temperature of the showcase can be controlled depending on whether the lights inside the warehouse are on during business hours or off when the lights are off, and it is possible to smoothly switch from business hours to non-business hours or vice versa. can be done.
図面は本発明ショーケースの運転方法の実施例を示し、
第1図はショーケースの縦断面図、第2図は制御装置の
ブロック図、第3図乃至第5図は制御装置の動作を示す
特性図である。
(4)・・・蒸発器、 (5)・・・送風機、 (10
)・・・照明、(11)・・・庫内、 (21)・・・
制御装置、 (22)・・・温度センサー、 (24)
・・・処理部、 (25)・・・設定部、(26)・・
・昼夜切替部、 (27)・・・出力部。
出願人 三洋電機株式会社 外1名
代理人 弁理士 佐 野 静 来
館1v!i
第2図
第3図The drawings show an embodiment of the method of operating the showcase of the present invention,
FIG. 1 is a longitudinal sectional view of the showcase, FIG. 2 is a block diagram of the control device, and FIGS. 3 to 5 are characteristic diagrams showing the operation of the control device. (4)...Evaporator, (5)...Blower, (10
)...Lighting, (11)...Interior, (21)...
Control device, (22)...Temperature sensor, (24)
...Processing section, (25)...Setting section, (26)...
- Day/night switching section, (27)...output section. Applicant Sanyo Electric Co., Ltd. and 1 other representative Patent attorney Shizuka Sano Visit 1v! i Figure 2 Figure 3
Claims (1)
して庫内を所定の温度に冷却するショーケースにおいて
、店舗の営業時における庫内温度の設定値からこの設定
値よりも高い非営業時における庫内温度の設定値に切り
替えるときに前記蒸発器への液冷媒の供給を強制的に停
止させてなるショーケースの運転方法。1. In a showcase where the cold air that has been heat exchanged with an evaporator is forcedly circulated by a blower to cool the inside of the store to a predetermined temperature, the temperature inside the store is set at a temperature higher than this set value during store business hours. A method of operating a showcase comprising forcibly stopping supply of liquid refrigerant to the evaporator when switching to a set value of the temperature inside the refrigerator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2446586A JPS61191851A (en) | 1986-02-06 | 1986-02-06 | Method of operating showcase |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2446586A JPS61191851A (en) | 1986-02-06 | 1986-02-06 | Method of operating showcase |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61191851A true JPS61191851A (en) | 1986-08-26 |
Family
ID=12138914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2446586A Pending JPS61191851A (en) | 1986-02-06 | 1986-02-06 | Method of operating showcase |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61191851A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49126149A (en) * | 1973-03-16 | 1974-12-03 | ||
JPS5355555A (en) * | 1976-10-29 | 1978-05-20 | Hitachi Ltd | Refrigerator |
JPS5499256A (en) * | 1978-01-20 | 1979-08-04 | Sanyo Electric Co Ltd | Temperature controlling apparatus for refrigerating display case |
-
1986
- 1986-02-06 JP JP2446586A patent/JPS61191851A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49126149A (en) * | 1973-03-16 | 1974-12-03 | ||
JPS5355555A (en) * | 1976-10-29 | 1978-05-20 | Hitachi Ltd | Refrigerator |
JPS5499256A (en) * | 1978-01-20 | 1979-08-04 | Sanyo Electric Co Ltd | Temperature controlling apparatus for refrigerating display case |
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