JPS61213467A - Refrigerator - Google Patents

Refrigerator

Info

Publication number
JPS61213467A
JPS61213467A JP5395085A JP5395085A JPS61213467A JP S61213467 A JPS61213467 A JP S61213467A JP 5395085 A JP5395085 A JP 5395085A JP 5395085 A JP5395085 A JP 5395085A JP S61213467 A JPS61213467 A JP S61213467A
Authority
JP
Japan
Prior art keywords
temperature
refrigerator
freezer
compartment
thermostat
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
Application number
JP5395085A
Other languages
Japanese (ja)
Inventor
柳川 忠司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP5395085A priority Critical patent/JPS61213467A/en
Publication of JPS61213467A publication Critical patent/JPS61213467A/en
Pending legal-status Critical Current

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  • Defrosting Systems (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】 産業上の利用分野 本発明は冷気を庫内に強制対流させるファンモータ、お
よび、間接冷却器と、前記間接冷却器に配設された除霜
用ヒータとより成る冷凍冷蔵庫に関し、特に低外気温時
の冷蔵室温度が異常に低下する事を防止する冷凍冷蔵庫
に係る。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerator comprising a fan motor for forcing cold air into a refrigerator, an indirect cooler, and a defrosting heater disposed in the indirect cooler. The present invention relates to refrigerators, and particularly to refrigerator-freezers that prevent the temperature of the refrigerator compartment from dropping abnormally when the outside temperature is low.

従来の技術 冷気強制対流の間接冷却方式のものに於て、低外気温時
に冷蔵室が0℃以下になるのを防止する為、冷蔵室内に
補償用のヒータを取付は庫内温度を上昇させてやる方式
が知られている。
Conventional technology: In indirect cooling systems using cold air forced convection, in order to prevent the refrigerator compartment from dropping below 0°C when the outside temperature is low, a compensating heater is installed inside the refrigerator compartment to increase the internal temperature. There are known methods for doing this.

従来例を第6図から第6図に示し説明する。A conventional example is shown and explained in FIGS. 6 to 6.

1は冷凍冷蔵庫で、上部の冷凍室2と下部の冷蔵室3よ
り成る。4は庫内の空気と熱交換を行なう間接冷却器で
、冷凍室および冷蔵室2の間の区割壁S内に配設されて
いる。6は前記間接冷却器4に付着した霜を除霜する為
の除霜用ヒータで、間接冷却器4に配設されている。7
は前記間接冷却器4で熱交換された冷気を庫内に循環せ
しめるファンモータである。8は冷蔵室3内に設けられ
た冷蔵室温度補償用ヒータであり、冷蔵庫1の機械室9
内にある外気温サーモスタット1oにより通電が制御さ
れる。11は凝縮器で、12は減圧装置、13は圧縮機
である。なお、通常運転時は、冷凍室2内にあるサーモ
スタット14&により圧縮機13を運転させる様構成さ
れている。父、冷蔵室3の温度はダンバーサーモスタッ
)14bにて制御されている。
Reference numeral 1 denotes a refrigerator-freezer, which consists of an upper freezer compartment 2 and a lower refrigerator compartment 3. Reference numeral 4 denotes an indirect cooler that exchanges heat with the air inside the refrigerator, and is disposed within the dividing wall S between the freezer compartment and the refrigerator compartment 2. Reference numeral 6 denotes a defrosting heater for defrosting frost adhering to the indirect cooler 4, and is disposed in the indirect cooler 4. 7
is a fan motor that circulates the cold air heat-exchanged by the indirect cooler 4 into the refrigerator. Reference numeral 8 denotes a heater for compensating the temperature of the refrigerator 3, which is provided in the refrigerator 1.
Electricity is controlled by an outside temperature thermostat 1o located inside. 11 is a condenser, 12 is a pressure reducing device, and 13 is a compressor. Note that during normal operation, the compressor 13 is configured to be operated by a thermostat 14& in the freezer compartment 2. The temperature of the refrigerator compartment 3 is controlled by a Dunbar thermostat 14b.

発明が解決しようとする問題点 この様な構成に於て外気温が低くなると(例えば0℃以
下)、冷凍冷蔵庫の温度は冷凍室2内にあるサーモスタ
ット14に依存する為、冷蔵室3の温度はダンパーサ−
モスタラ)14bが閉しているにもかかわらず異常に低
くなる。この時、機械室9内にある外気サーモスタット
1oにより冷蔵室3内に設けられた冷蔵室温度補償用ヒ
ータ8に通電する事により冷蔵室3内の温度を上昇させ
るようになっている。この場合、冷蔵室3内に特別のヒ
ータを必要とする上に、冷蔵室温度補償用ヒータ8近傍
の温度が特に上昇し、食品に対し悪い影響を与えるとい
う欠点を有していた。
Problems to be Solved by the Invention In such a configuration, when the outside temperature becomes low (for example, below 0°C), the temperature of the refrigerator-freezer depends on the thermostat 14 in the freezer compartment 2, so the temperature of the refrigerator compartment 3 will change. is the damper
Even though Mostara) 14b is closed, it becomes abnormally low. At this time, the outside air thermostat 1o in the machine room 9 energizes the refrigerator temperature compensation heater 8 provided in the refrigerator compartment 3 to raise the temperature in the refrigerator compartment 3. In this case, a special heater is required in the refrigerator compartment 3, and the temperature in the vicinity of the refrigerator compartment temperature compensation heater 8 particularly increases, which has a negative effect on the food.

このため本発明は低外気温時の冷蔵室の冷えすぎを補償
するものである。
Therefore, the present invention compensates for the coldness of the refrigerator compartment when the outside temperature is low.

問題点を解決するだめの手段 この目的を達成するため本発明は、低外気温時除霜用ヒ
ータを庫内温度に応じて位相制御装置により容量を変え
その暖気を冷蔵室内にファンモータの駆動により冷蔵室
へ循環させるものである。
Means to Solve the Problem In order to achieve this object, the present invention changes the capacity of the defrosting heater when the outside temperature is low using a phase control device according to the temperature inside the refrigerator, and drives a fan motor to direct the warm air into the refrigerator compartment. It circulates to the refrigerator compartment.

作  用 この構成により、特別なヒータを使用せずに冷蔵室内温
度を所定の温度に保つことができる。
Function: With this configuration, the temperature inside the refrigerator compartment can be maintained at a predetermined temperature without using a special heater.

実施例 以下本発明の一実施例を第1図〜第2図に従い説明する
EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2.

第1図に於いて、1は冷凍冷蔵庫、2は冷凍室、3は冷
蔵室である。6は区割壁門内に配置された間接冷却器4
の除霜を行なうための除霜用ヒータである。7は前記間
接冷却器4で熱交換された冷気を前記冷凍室2及び冷蔵
室3へ循環させる為のファンモータである。10は機械
室9内に配置され、外気温を検知する為の外気温サーモ
スタットであり、14&は圧縮機13の運転を制御する
サーモスタットであり、15aは冷蔵室3内の温度を検
知する冷蔵室用サーモスタットである。そして、16は
低外気温時でかつ冷蔵室温度が低い場合のみ冷凍室側へ
の風路をしゃ断するシャッタ機構である。13は圧縮機
で14bは冷蔵室温度に応じて熱応動するダンパーサー
モスタットであり、その感温部にはヒータ16b(図示
せず)が配設されている。
In FIG. 1, 1 is a refrigerator-freezer, 2 is a freezer compartment, and 3 is a refrigerator compartment. 6 is an indirect cooler 4 placed inside the partition wall gate.
This is a defrosting heater for defrosting. Reference numeral 7 denotes a fan motor for circulating the cold air heat-exchanged by the indirect cooler 4 to the freezer compartment 2 and the refrigerator compartment 3. 10 is an outside temperature thermostat placed in the machine room 9 to detect the outside temperature, 14 & is a thermostat that controls the operation of the compressor 13, and 15a is a refrigerator compartment that detects the temperature inside the refrigerator compartment 3. It is a thermostat for Reference numeral 16 denotes a shutter mechanism that shuts off the air passage to the freezer compartment only when the outside temperature is low and the temperature of the refrigerator compartment is low. 13 is a compressor, 14b is a damper thermostat that responds thermally according to the temperature of the refrigerator compartment, and a heater 16b (not shown) is disposed in the temperature sensing portion of the damper thermostat.

第2図に於て、14aはサーモスタットで、その接点の
一端は間接冷却器4に付着した霜を一定時間毎に除霜用
ヒータ6に通電させる為のタイマー17に接続され、他
端には、低外気温時、の庫内温度を上昇させる際に動作
するリレー20の接点20aの一端に接続され、又20
bの一端に位相制御装置21を介して接続されていると
同時に、外気温サーモスタット1oに接続されている。
In FIG. 2, 14a is a thermostat, one end of which is connected to a timer 17 for energizing the defrosting heater 6 at regular intervals to remove the frost that has adhered to the indirect cooler 4, and the other end is , is connected to one end of the contact 20a of the relay 20 that operates when raising the internal temperature of the refrigerator when the outside temperature is low;
b via a phase control device 21, and at the same time connected to an outside temperature thermostat 1o.

一方、タイマー17の接点の一端は圧縮機13及びリレ
ー20の接点20aのもう一端に接続されている。又タ
イマー17の接点のもう一端は、リレー20の接点20
bのもう一端に接続されている。
On the other hand, one end of the contact of the timer 17 is connected to the compressor 13 and the other end of the contact 20a of the relay 20. The other end of the contact of the timer 17 is the contact 20 of the relay 20.
connected to the other end of b.

一方、リレー20の接点20&の出力端は庫内に冷気又
は暖気を循環させるファンモータ7に接続されており、
接点20bの出力端は除霜用ヒータ6に接続されている
On the other hand, the output end of the contact 20 & of the relay 20 is connected to the fan motor 7 that circulates cold or warm air inside the refrigerator.
The output end of the contact 20b is connected to the defrosting heater 6.

一方外気温サーモスタット1oの出力端は冷蔵室用サー
モスタット15aを介し、リレー2oのコイル及び冷凍
室風路のしゃ断を行なうシャッタ機構丁6を作動せしめ
るソレノイド19及びダンパサーモスタッ)14bを強
制的に開かせる為の加温ヒータ16bに接続されている
On the other hand, the output end of the outside temperature thermostat 1o is used to forcibly open the coil of the relay 2o, the solenoid 19 that operates the shutter mechanism 6 that shuts off the freezer air passage, and the damper thermostat 14b, via the refrigerator thermostat 15a. It is connected to a heating heater 16b for heating.

次に位相制御装置21の詳細を第3図に示す。Next, details of the phase control device 21 are shown in FIG.

サーミスタ22は冷蔵室3内に取付けられており、冷蔵
室3の温度に応じて、トランジスタ31.32によりト
ライアック23のゲートを制御することにより、ヒータ
の通電率を制御している。24゜25.26,2ア、2
8は抵抗でおり、29.30はコンデンサ、33はダイ
オードである。
The thermistor 22 is installed in the refrigerator compartment 3, and controls the energization rate of the heater by controlling the gate of the triac 23 using transistors 31 and 32 according to the temperature of the refrigerator compartment 3. 24°25.26,2a,2
8 is a resistor, 29.30 is a capacitor, and 33 is a diode.

上記構成に於て、通常運転時は、冷凍室2内の温度をサ
ーモスタット14で感知し、設定温度より高くなると、
圧縮機13及びファンモータ7を動作させる事により冷
凍室2及び冷蔵室内の温度を一定に保っている。又、間
接冷却器4に付着した霜は、一定時間毎にタイマ17に
より、除霜用ヒータ6に通電する事により行なわれる。
In the above configuration, during normal operation, the temperature inside the freezer compartment 2 is sensed by the thermostat 14, and when it becomes higher than the set temperature,
By operating the compressor 13 and fan motor 7, the temperatures in the freezer compartment 2 and the refrigerator compartment are kept constant. Further, the frost adhering to the indirect cooler 4 is removed by energizing the defrosting heater 6 at regular intervals using a timer 17.

かかる構成において、冷凍冷蔵庫1の周囲温度が設定温
度以下に低下し冷蔵室3の温度が設定温度以下になり、
かつ冷凍室2の温度は低くサーモスタッ)14aがOF
Fしていると、外気温サーモスタット1oがONL、又
、冷蔵室用サーモスタット15aもONし、リレー20
.  ソレノイド19及びヒータ16bが動作すると共
にリレー2oの接点20a、20bが動作し、サーミス
タ22により庫内温度と設定温度との差により位相制御
装置21で制御された電圧が除霜用ヒータ6が印加され
ると同時にファンモータ7に通電される。又、ヒータ1
6bの通電によりダンパサーモ14bが開となり又、ソ
レノイド19の通電により作動したシャッタ機構16で
冷凍室風路を遮断した状態で除霜用ヒータ6で熱交換さ
れた暖気を冷蔵室3へのみダンパーサ−モスタラ114
bを介して循環させるので、冷凍室2には暖気が循環す
ることはない。又、この時、除霜用ヒータ6は位相制御
装置21で制御された電圧が印加されるので、本来の機
能である除霜時に比べ低容量となり、冷蔵内の温度が上
昇しすぎるのを防止している。
In such a configuration, the ambient temperature of the refrigerator-freezer 1 falls below the set temperature, and the temperature of the refrigerator compartment 3 falls below the set temperature,
And the temperature of the freezer compartment 2 is low and the thermostat 14a is off.
When F is on, the outside temperature thermostat 1o turns ON, and the refrigerator room thermostat 15a also turns ON, and the relay 20 turns ON.
.. The solenoid 19 and the heater 16b operate, and the contacts 20a and 20b of the relay 2o operate, and the voltage controlled by the phase control device 21 is applied to the defrosting heater 6 by the thermistor 22 based on the difference between the internal temperature and the set temperature. At the same time, the fan motor 7 is energized. Also, heater 1
The damper thermostat 14b is opened by the energization of the solenoid 19, and the damper thermostat 14b is activated by the energization of the solenoid 19, which shuts off the freezer compartment air passage and allows the warm air heat exchanged by the defrosting heater 6 to flow only into the refrigerator compartment 3. Mostara 114
Since the warm air is circulated through the freezer compartment 2, warm air does not circulate through the freezer compartment 2. Also, at this time, the voltage controlled by the phase control device 21 is applied to the defrosting heater 6, so the capacity is lower than that during defrosting, which is the original function, and the temperature inside the refrigerator is prevented from rising too much. are doing.

なお、冷蔵室3内の温度が所定温度以上になると、冷蔵
室用サーモスタッ)16aが0FFL、除霜用ヒータ6
、及びファンモータ7、ソレノイド19、リレー20.
及びヒータ1sbへの通電がたたれる。一方、外気温度
が上昇した時は、外気温サーモ1oが0FFL上記と同
じ効果を有する。
Note that when the temperature inside the refrigerator compartment 3 exceeds a predetermined temperature, the refrigerator compartment thermostat 16a turns to 0FFL, and the defrosting heater 6
, and fan motor 7, solenoid 19, relay 20.
And the power supply to the heater 1sb is stopped. On the other hand, when the outside temperature rises, the outside temperature thermometer 1o has the same effect as 0FFL above.

一方、冷凍室2の温度が所定温度より上昇した場合はサ
ーモスタット14の接点によりリレ→2゜への通電がし
ゃ断され、除霜用ヒータ6及びファンモータ7への通電
がしゃ断されると同時に、圧縮機13及びファンモータ
7に通電され冷凍室2内を一定温度に保っている。  
 ′ 発明の効果 以上の説明からも明らかな如く、本発明によれば所定の
外気温以下の時に冷蔵室温度が所定温度以下になった時
は、除霜用ヒータへの通電を制御し及びファンモータに
より暖気を冷蔵室へのみ循環さ擾るため、冷凍室及び冷
蔵室温度を外気温に影響を受けることなく一定に保つ事
ができると同時に、除霜用ヒータを利用する為、特別な
ヒータも必要としない上に、ヒータの位相を制御する為
、除霜用ヒータの温度の過昇を防止すると共に冷蔵室の
冷えすぎ度合に応じて冷蔵室吐出暖気熱量を制御する為
素早く適温に引きもどし制御出来るものである。
On the other hand, when the temperature of the freezer compartment 2 rises above the predetermined temperature, the contact of the thermostat 14 cuts off the electricity to the relay →2°, and at the same time cuts off the electricity to the defrosting heater 6 and fan motor 7. The compressor 13 and fan motor 7 are energized to maintain the inside of the freezer compartment 2 at a constant temperature.
'Effects of the Invention As is clear from the above explanation, according to the present invention, when the temperature of the refrigerator compartment falls below a predetermined temperature when the outside temperature is below a predetermined temperature, the power supply to the defrosting heater is controlled and the fan is turned on. Since the motor circulates warm air only to the refrigerator compartment, the temperature of the freezer and refrigerator compartments can be kept constant without being affected by the outside temperature. In addition, since the phase of the heater is controlled, the temperature of the defrosting heater is prevented from rising too high, and the amount of warm air discharged from the refrigerator compartment is controlled depending on the degree of coldness of the refrigerator compartment, so the temperature can be quickly brought down to the appropriate temperature. It is something that can be controlled back.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例を示す冷凍冷蔵庫の断面図、
第2図はその制御回路、第3図は位相制御装置の回路図
、第4図は動作説明図、第6図は従来例を示す冷凍冷蔵
庫の断面図、第6図はその冷凍サイクル図である。 4・・・・・・間接冷却器、6・・・・・・除霜用ヒー
タ、7・・・・・・ファンモータ、10・・・・・・外
気温サーモスタット、15a・・・・・・冷蔵室用サー
モスタット、115b・・・・・・冷蔵室サーモスタッ
ト感熱部配設ヒータ、16・・・・・・シャッター機構
、19・・・・・・シャッター機構作動用ンレノイド、
21・・・・・・位相制御装置。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名7−
・・ファンヒータ 第2図 第3図 第4図 丁 第5図 4a 第6図
FIG. 1 is a sectional view of a refrigerator-freezer showing an embodiment of the present invention.
Fig. 2 is the control circuit, Fig. 3 is a circuit diagram of the phase control device, Fig. 4 is an operation explanatory diagram, Fig. 6 is a sectional view of a conventional refrigerator-freezer, and Fig. 6 is a diagram of its refrigeration cycle. be. 4...Indirect cooler, 6...Defrosting heater, 7...Fan motor, 10...Outside temperature thermostat, 15a... - Refrigerator room thermostat, 115b... Refrigerator room thermostat heat sensitive section heater, 16... Shutter mechanism, 19... Lennoid for shutter mechanism operation,
21... Phase control device. Name of agent: Patent attorney Toshio Nakao and 1 other person7-
...Fan heater Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 4a Fig. 6

Claims (1)

【特許請求の範囲】[Claims] 冷気を庫内に強制対流させるファンモータ、および間接
冷却器と、前記間接冷却器に配設された除霜用のヒータ
と、所定の外気温度以下で冷蔵室温度が所定温度以下に
低下したときに、前記除霜用ヒータおよびファンモータ
に通電すると共に、冷凍室への冷凍室風路をしゃ断する
シャッター機構等を作動させる温度検知手段と、前記除
霜用ヒータへの通電率を、庫内温度に応じて庫内温度が
低い場合には高く、高い場合には低く制御する位相制御
装置とを備えた冷凍冷蔵庫。
A fan motor for forced convection of cold air into the refrigerator, an indirect cooler, a defrosting heater installed in the indirect cooler, and when the temperature of the refrigerator compartment falls below a predetermined temperature when the outside air temperature is below a predetermined temperature. The defrosting heater and the fan motor are energized, and a temperature detection means that operates a shutter mechanism, etc. that cuts off the freezer air passage to the freezer compartment, and a temperature detection means that operates the energization rate to the defrosting heater inside the refrigerator. A refrigerator-freezer equipped with a phase control device that controls the internal temperature to be high when it is low and to be low when it is high.
JP5395085A 1985-03-18 1985-03-18 Refrigerator Pending JPS61213467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5395085A JPS61213467A (en) 1985-03-18 1985-03-18 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5395085A JPS61213467A (en) 1985-03-18 1985-03-18 Refrigerator

Publications (1)

Publication Number Publication Date
JPS61213467A true JPS61213467A (en) 1986-09-22

Family

ID=12956997

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5395085A Pending JPS61213467A (en) 1985-03-18 1985-03-18 Refrigerator

Country Status (1)

Country Link
JP (1) JPS61213467A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007132543A (en) * 2005-11-08 2007-05-31 Toshiba Corp Refrigerator
JP2009293897A (en) * 2008-06-09 2009-12-17 Hitachi Appliances Inc Refrigerator
JP2011002143A (en) * 2009-06-18 2011-01-06 Hitachi Appliances Inc Refrigerator
JP2011002142A (en) * 2009-06-18 2011-01-06 Hitachi Appliances Inc Refrigerator
JP2012017976A (en) * 2011-09-20 2012-01-26 Hitachi Appliances Inc Refrigerator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007132543A (en) * 2005-11-08 2007-05-31 Toshiba Corp Refrigerator
JP4498261B2 (en) * 2005-11-08 2010-07-07 株式会社東芝 refrigerator
JP2009293897A (en) * 2008-06-09 2009-12-17 Hitachi Appliances Inc Refrigerator
JP2011002143A (en) * 2009-06-18 2011-01-06 Hitachi Appliances Inc Refrigerator
JP2011002142A (en) * 2009-06-18 2011-01-06 Hitachi Appliances Inc Refrigerator
JP2012017976A (en) * 2011-09-20 2012-01-26 Hitachi Appliances Inc Refrigerator

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