CN1064348A - 冷藏箱的除霜控制方法 - Google Patents

冷藏箱的除霜控制方法 Download PDF

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CN1064348A
CN1064348A CN92101028A CN92101028A CN1064348A CN 1064348 A CN1064348 A CN 1064348A CN 92101028 A CN92101028 A CN 92101028A CN 92101028 A CN92101028 A CN 92101028A CN 1064348 A CN1064348 A CN 1064348A
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defrosting
temperature
box
door
compressor
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CN1065334C (zh
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林润泽
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06Removing frost
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002Defroster control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/02Sensors detecting door opening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)

Abstract

一种冷藏箱的除霜控制方法,其中累积压缩机的 运转时间,判断比较除霜插入时间,当到了除霜操作 时间后判断比较箱内温度是否充分地满足除霜操作 温度,当满足除霜操作温度时,推测冷冻室以及冷藏 室的门的开闭状态,当上述三种条件都满足时,开始 除霜。

Description

本发明涉及一种冷藏箱的除霜控制方法,特别地涉及一种掌握了一定周期的除霜时间,冷藏箱内部温度以及门的状态,并当以上的条件均被满足时,才开始进行除霜操作的冷藏箱的除霜控制方法。
冷藏箱的除霜控制方法中,如图1所示的那样,是与箱内温度条件无关,只要压缩机总运转时间已经过,就无条件地进行除霜的方法。这是仅考虑压缩机运转时间的一个具体例子,这个方法公开在美国专利第4528521号上。
该方法中,有时,在压缩机停止状态下,刚转换成启动状态就立即转入了除霜,而且,调节冷冻室和冷藏室的温度调节器使箱内温度处于较高的使用条件下,在除霜插入的情况下,霜内的温度会升高到超过设定的温度,就有导致贮藏的食品变质的危险。
从而,为解决这一问题,提出了如图2所示的方法,该方法是用了在进行除霜操作之前,强制压缩机启动一段时间,在库内温度下降之后再转入除霜操作,这种方法记载在日本实用新型公开昭64-22972上,该方法考虑了库内温度,而且如果在使用中调节温度调节器,把库内温度设定在较低温度时,会导致使压缩机再次运转,不仅造成了不必要的电力浪费,而且使库内一层的温度过低,不仅把冷藏室内贮藏的食品冷冻,而且与前述不必要的电力消费的增加相比,仍有防止库内温度上升的效果不明显的问题。
冷藏室除霜的另一种方法是以美国专利4297852上所发表的考虑冷藏门所处的状态的方法。而该方法没有同时考虑到上述的除 霜时间以及箱内温度的影响,因此仍然存在上述缺陷。
为此,本发明就为解决上述缺陷而提出的,其目的在于提供一种通过同时地判断除霜时间是否已过、箱内的温度以及门所处的状态这三种情况来决定是否进行除霜的除霜方法。
为了实现上述目的,在本发明中要积算压缩机的运转时间、然后比较判断除霜插入时间,如果除霜插入时间已过,就比较判断箱内温度是否是进行除霜的充分的温度,如果是进行除霜的充分的温度,那么再感应冷冻室及冷藏室的门是否正关着,当上述三种条件都满足了要求时,才开始除霜。
下面,参照附图,对本发明进行详细的说明。
图3是本发明所适用的冷藏箱的一部分概略方框图,它是由控制部100、感应箱内温度的箱内温度感应部200、感应冷冻冷藏室的门开关状态的门感应部300、根据来自上述控制部100的控制信号来驱动压缩机和加热器的驱动部400组成。在上述控制部100中,从上述箱内温度感应部200连续地读出冷冻室和冷藏室的温度,当达到基准设定温度时,为了进行冷冻和冷藏运转,就启动驱动部400的压缩机,并感应控制冷冻室及冷藏室的温度,此外,由门感应部300判别冷冻室及冷藏室的门的开闭情况,最终决定是否可插入除霜。根据上述各个判断结果来控制驱动部400,在冷藏和冷冻运转时启动压缩机,而关闭加热器,在除霜运行时,关掉压缩机,而接通加热器,这样就能够进行除霜和冷藏冷冻运转。
图4是本发明所用的冷藏箱控制方法的除霜伺服程序的流程图。首先在控制部100内,步骤10中,在符合除霜插入时的时间间隔存储压缩机是否已运转的压缩机运转翻转二进码初值化,在步骤11中,判断压缩机有没有被启动,如果没有被启动,则进行另一路程序(图中省略),如果压缩机正被启动则在步骤12中增加压缩机的运转时间,并对运转时间进行积算。
接下来在步骤13中,比较判断前述压缩机驱动的同时所积算的运转时间和除霜插入时间,如果除霜插入时间已过,则进入步骤14,对压缩机运行翻转二进码进行设定,如果还未超过除霜插入时间则回到步骤12中进行启动压缩机并增加压缩机的运行时间。
在步骤15中,一方面将压缩机还转时间初值化,另一方面要计算除霜时间,在步骤16中,由箱内温度感应部200接收箱内温度数值,并判断冷藏室的温度是否可插入除霜的温度,如果冷藏室温度不是能插入除霜的温度,即使除霜插入时间也已过,为了使冷藏室的温度不上升到该温度之上,也就是为了降低箱内温度。
在步骤17中对压缩机进行强制驱动,然后再判断冷藏室的温度是否可插入除霜的允许温度。在上述步骤16中,如果冷藏室的温度是能插入除霜的温度,则在步骤18中判断冷冻室的温度是否为可插入除霜的温度。这样,如果冷冻室的温度也不是能插入除霜的温度,则进行步骤19,为使冷冻室的箱内温度不上升,就强制启动压缩机。如果在上述步骤18中,冷冻室的温度是可进行除霜的温度,则进一步由门感应部300接收对应于门状态的信号,即使压缩机运转时间内伴随的自然转入除霜条件和箱内温度对于进行除霜来说是满足要求的话,但若在进行除霜之前冷冻冷藏室的门是开着的,那么因箱内温度会上升,也就不能符合进行除霜的温度条件。
从而在步骤20、21中,判断冷冻室和冷藏室的门是否处于打开位置。如果门是打开的,本除霜伺服程序被退出,执行其它程序。在步骤20、21中,如门被关上,则在步骤22中将压缩机关闭,在步骤23中,为了记忆相应于除霜突入时间的下次压缩机运转时间,使压缩机运转翻转二进码初值化。在步骤14中启动加热器,转入除霜。
也就是说,除霜时间已过,冷冻,冷藏室的温度满足除霜温度插入条件,门也未处于打开的状态上述条件都已满足,那么才能进行除霜运行。
以上所述,基本上说明了在本发明中的冷藏箱中,当除霜时间已过时,冷藏箱的库内温度也是能插入除霜的温度,门也是关上的状态时,才能转入除霜运行。本发明的效果就在于通过上述手段可以解决以下问题:如压缩机总运转时间已过就无条件地插入除霜的问题;当总运转时间经过后,使压缩机启动,而无条件地降低库内温度后插入除霜操作时带来的贮藏食品变质的问题以及箱内温度上升的问题。

Claims (1)

1、一种冷藏箱的除霜控制方法,其特征包括:
累积压缩机的运转时间用以与除霜插入时间进行比较判断的除霜插入时间判断步骤;
在上述除霜插入时间判断步骤中,若除霜插入时间已过,便感知箱内温度是否充分地满足除霜插入的温度,对箱内温度感知并比较判断的步骤;
在上述箱内温度感知步骤中,如果不是除霜插入的充分的温度,就强制压缩机运转的压缩机强制运转步骤;
在上述箱内温度感知步骤中,如果是除霜插入的充分的温度,就对冷藏、冷冻室的门是否被开着进行检测的门检测步骤;
在上述门检测步骤中,如果门没有被打开,就进行除霜操作的除霜插入步骤。
CN92101028A 1991-01-26 1992-01-25 冷藏箱的除霜控制方法 Expired - Fee Related CN1065334C (zh)

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CN106225380A (zh) * 2016-08-22 2016-12-14 Tcl家用电器(合肥)有限公司 冰箱的控制方法、控制装置及冰箱
CN106225380B (zh) * 2016-08-22 2019-09-06 Tcl家用电器(合肥)有限公司 冰箱的控制方法、控制装置及冰箱
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CN108302880A (zh) * 2017-12-27 2018-07-20 青岛海尔股份有限公司 冰箱及其化霜控制方法
CN108168197B (zh) * 2017-12-27 2020-04-21 青岛海尔股份有限公司 冰箱及其化霜控制方法
CN108302880B (zh) * 2017-12-27 2020-07-24 青岛海尔股份有限公司 冰箱及其化霜控制方法
CN108955071A (zh) * 2018-05-30 2018-12-07 海信容声(广东)冰箱有限公司 一种加热器的控制方法及冰箱
CN108955071B (zh) * 2018-05-30 2020-08-11 海信容声(广东)冰箱有限公司 一种加热器的控制方法及冰箱
CN110081655A (zh) * 2019-04-04 2019-08-02 海信容声(广东)冰箱有限公司 制冷设备和蒸发器防结霜方法
WO2020224501A1 (zh) * 2019-05-06 2020-11-12 青岛海尔空调器有限总公司 一种空调除霜的控制方法、装置及空调

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