KR100241452B1 - Electronic damper apparatus of refrigerator - Google Patents

Electronic damper apparatus of refrigerator Download PDF

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KR100241452B1
KR100241452B1 KR1019970052466A KR19970052466A KR100241452B1 KR 100241452 B1 KR100241452 B1 KR 100241452B1 KR 1019970052466 A KR1019970052466 A KR 1019970052466A KR 19970052466 A KR19970052466 A KR 19970052466A KR 100241452 B1 KR100241452 B1 KR 100241452B1
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cold air
resistance
air circulation
fan motor
motor
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KR1019970052466A
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KR19990031663A (en
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김치영
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구자홍
엘지전자주식회사
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Abstract

본 발명은 전자식 댐퍼장치에 관한 것으로, 종래에는 발열저항이 온도조절기의 전단으로부터 전체회로에 병렬로 접속되기 때문에 온도조절기의 개폐에 관계없이 항상 발열되어 제품의 소비전력량이 증가될 수 있는 문제점이 있었다. 따라서, 본 발명은 발열저항을 온도조절스위치와 병렬로 접속함과 아울러 도어스위치와 압축기모터 및 냉기순환용팬모터와는 직렬로 접속하고, 상기 압축기모터와 냉기순환용팬모터는 병렬로 접속하며, 상기 냉기순환용팬모터와 도어스위치를 직렬로 접속하여 구성함으로써 온도조절스위치가 개로되었을 때만 분압에 의해 저항이 발열되도록함으로써 저항의 발열시간을 줄여 제품의 소비전력을 절감시킬 수 있는 효과가 있다.The present invention relates to an electronic damper device, and in the related art, since the heating resistance is connected in parallel to the entire circuit from the front end of the temperature controller, there is a problem that the power consumption of the product can be increased by always heating regardless of the opening and closing of the temperature controller. . Therefore, the present invention is connected to the heat resistance in parallel with the temperature control switch, the door switch and the compressor motor and the cold air circulation fan motor in series, the compressor motor and the cold air circulation fan motor is connected in parallel, The fan motor and the door switch for cold circulation are connected in series so that the resistance is generated by partial pressure only when the temperature control switch is opened, thereby reducing the heat generation time of the resistance and reducing the power consumption of the product.

Description

냉장고의 전자식 댐퍼장치{ELECTRONIC DAMPER APPARATUS OF REFRIGERATOR}Electronic damper device of refrigerator {ELECTRONIC DAMPER APPARATUS OF REFRIGERATOR}

본 발명은 전자식댐퍼장치에 관한 것으로, 특히 내장스위치의 개로시에만 발열저항이 발열되도록함으로써 제품의 소비 전력량을 절감시킬수 있도록 한 냉장고의 전자식댐퍼장치에 관한 것이다.The present invention relates to an electronic damper device, and more particularly to an electronic damper device of the refrigerator to reduce the power consumption of the product by generating a heat-resistance only when the internal switch is opened.

도1은 일반적인 냉장고의 종단면도로서, 이에 도시된 바와같이 저온,저압의 냉매를 증발시켜 액분이 없는 포화증기로 만드는 증발기(4)와; 상기 증발기(4)에서 토출된 저온,저압의 냉매증기를 흡입하여 이를 압축함으로써 고온,고압의 증기로 만드는 압축기(6)와; 냉장실(2)의 냉기공급과 차단으로 상기 냉장실(2)의 온도를 조절할 수 있는 전자식 댐퍼(5)와; 냉기순환 역할을 하여 상기 증발기(4)에서 발생된 냉기를 냉동실(1)로 강제 송풍하는 냉기팬을 구동시키는 냉기순환용 팬모터(3)로 구성된다.1 is a longitudinal sectional view of a typical refrigerator, as shown therein, an evaporator 4 for evaporating a low temperature and low pressure refrigerant into saturated steam without liquid content; A compressor (6) for sucking the low-temperature and low-pressure refrigerant vapor discharged from the evaporator (4) and compressing it to produce high-temperature and high-pressure steam; An electronic damper (5) capable of controlling the temperature of the refrigerating compartment (2) by supplying and blocking cold air from the refrigerating compartment (2); It is composed of a cold air circulation fan motor (3) to serve as a cold air circulation to drive the cold air fan forcibly blowing the cold air generated in the evaporator (4) to the freezing chamber (1).

도2는 상기 전자식댐퍼에 발열저항의 부착을 보인 단면도로서, 이에 도시된 바와같이 감온부(10)를 가진 팽창변(9)에 가스를 봉입하여 온도에 따른 가스의 수축/팽창에 의한 팽창변(9)의 수축/팽창으로 내장스위치(7)를 개폐하도록 구성된다.FIG. 2 is a cross-sectional view showing the attachment of a heating resistance to the electronic damper. As shown in FIG. It is configured to open and close the built-in switch (7) by the contraction / expansion of.

도3은 종래 냉장고의 전자식댐퍼장치의 구성을 보인 회로도로서, 이에 도시된 바와같이 직렬접속된 냉기순환용모터(3)와 도어스위치(S2)에 압축기용모터(11)를 병렬로 접속하고, 그 접속점에 온도조절스위치(S1)의 일측을 접속하여, 그 접속점에 발열저항(8)의 일측을 접속하고 그 발열저항(8)의 타측은 상기 도어스위치(S2)와 압축기용모터(11)의 접속점에 접속하여 구성되며, 이와같이 구성된 종래 장치의 동작을 설명한다.3 is a circuit diagram showing a configuration of an electronic damper device of a conventional refrigerator. As shown in FIG. 3, a compressor 11 is connected in parallel to a cold air circulation motor 3 and a door switch S2 connected in series. One side of the temperature control switch S1 is connected to the connection point, and one side of the heat generating resistor 8 is connected to the connection point, and the other side of the heat generating resistor 8 is the door switch S2 and the compressor motor 11. The operation of the conventional apparatus configured as described above is connected to the connection point of.

먼저, 냉장실(2)의 온도를 기준으로 냉장실(2) 및 냉동실(1)의 온도를 제어하는 경우에 주위온도가 10

Figure pat00001
이하의 저온일 때는 냉장실(2)과 주위 온도간에 온도차가 적어 냉장실(2)의 냉기 손실이 적어지므로 전자식댐퍼(5)의 온도조절스위치(S1)가 개로 되는 시간, 즉 압축기(6)의 운전시간이 적어져 상대적으로 -15
Figure pat00002
이하의 온도를 유지해야 하는 냉장고(2)의 온도가 상승된다.First, when the temperature of the refrigerating chamber 2 and the freezing chamber 1 is controlled based on the temperature of the refrigerating chamber 2, the ambient temperature is 10.
Figure pat00001
In the following low temperature, the temperature difference between the refrigerating chamber 2 and the ambient temperature is small, so that the loss of cold air in the refrigerating chamber 2 is small. Less time, relatively -15
Figure pat00002
The temperature of the refrigerator 2 which should maintain the following temperature is raised.

따라서, 상기 전자식댐퍼(5)의 발열저항(8)을 발열시켜 발생한 발열량을 이용하여 상기 온도조절스위치(S1)를 가열하므로 이 온도조절스위치(S1)가 일정시간 이상 개로되면 냉장실(2)내 온도와 관계없이 상기 온도조절스위치(S1)를 폐로시켜 압축기(6)를 운전함으로써 냉동실(1)의 온도를 확보한다.Therefore, since the temperature control switch S1 is heated using the heat generated by heating the heat generating resistor 8 of the electronic damper 5, when the temperature control switch S1 is opened for a predetermined time or more, the refrigerating chamber 2 The temperature of the freezer compartment 1 is secured by operating the compressor 6 by closing the temperature control switch S1 regardless of the temperature.

그러나, 상기와 같이 동작하는 종래 장치는 발열저항이 온도조절기의 전단으로부터 전체회로에 병렬로 접속되기 때문에 온도조절기의 개폐에 관계없이 항상 발열되어 제품의 소비전력량이 증가될 수 있는 문제점이 있었다.However, the conventional device operating as described above has a problem in that the heating resistance is always connected in parallel to the entire circuit from the front end of the temperature controller, so that the power consumption of the product can be increased by always heating regardless of the opening and closing of the temperature controller.

따라서, 상기와 같은 문제점을 감안한 본 발명은 온도조절장치가 개로되었을때만 분압에 의해 저항이 발열되도록 하여 제품의 소비 전력량을 줄일 수 있도록 한 냉장고의 전자식 댐퍼 장치를 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide an electronic damper device for a refrigerator capable of reducing power consumption of a product by generating resistance by partial pressure only when the temperature control device is opened.

도 1은 일반적인 냉장고의 종단면도.1 is a longitudinal sectional view of a typical refrigerator.

도 2는 도1에 있어서, 전자식 댐퍼장치와 발열저항의 부착도.2 is an attachment diagram of an electronic damper device and a heat generating resistor in FIG. 1;

도 3은 종래 냉장고의 전자식 댐퍼장치의 회로도.3 is a circuit diagram of an electronic damper device of a conventional refrigerator.

도 4는 본 발명 냉장고의 전자식 댐퍼장치의 회로도.Figure 4 is a circuit diagram of an electronic damper device of the refrigerator of the present invention.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

3:냉기순환용팬모터 8 : 발열저항3: cold air circulation fan motor 8: heat resistance

11 : 압축기용팬모터 S1 : 온도조절스위치11: compressor fan motor S1: temperature control switch

S2 : 도어스위치S2: Door switch

상기와 같은 목적을 달성하기 위한 본 발명은 내장된 가스의 압력변화에 의해 냉기의 공급을 제어하는 댐퍼를 구비한 냉장고의 전자식 댐퍼장치에 있어서, 상기 댐퍼내에 설치된 감온부와; 상기 댐퍼의 동작을 수행하는 팽창변과; 도어스위치와 압축기모터 및 냉기순환용팬모터에 직렬로 배선되어, 상기 팽창변과 감온부내에 봉입된 가스압력을 강제로 변화시키기 위해 가스에 열원을 공급하는 발열저항과; 상기 발열저항과 병렬로 배선되어, 상기 압축기모터와 냉기순환용팬모터의 동작을 제어하는 온도조절스위치를 포함하여 구성한 것을 특징으로 한다.According to an aspect of the present invention, there is provided an electronic damper apparatus for a refrigerator having a damper for controlling supply of cold air by a change in pressure of gas contained therein, comprising: a temperature sensing unit installed in the damper; An expansion valve configured to perform an operation of the damper; A heat generating resistor wired in series to the door switch, the compressor motor, and the cold air circulation fan motor, for supplying a heat source to the gas to forcibly change the gas pressure enclosed in the expansion valve and the temperature sensing portion; Wired in parallel with the heating resistance, it characterized in that it comprises a temperature control switch for controlling the operation of the compressor motor and the cold air circulation motor.

이하, 본 발명 냉장고의 전자식 댐퍼장치에 대한 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, the operation and effects of the electronic damper device of the refrigerator according to the present invention will be described in detail with reference to the accompanying drawings.

도4는 본 발명 냉장고 전자식 댐퍼장치의 일실시예의 구성을 보인 회로도로서, 이에 도시한 바와같이 발열저항(8)을 온도조절스위치(S1)와 병렬로 접속함과 아울러 도어스위치(S2)와 압축기용모터(11) 및 냉기순환용팬모터(3)와는 직렬로 접속하고 상기 압축기용모터(11)와 냉기순환용팬모터(3)는 병렬로 접속하며 또한 상기 냉기순환용팬모터(3)와 도어스위치(S2)를 직렬로 접속하여 구성하며, 이와같이 구성한 본 발명의 일실시예의 동작을 설명한다.Figure 4 is a circuit diagram showing an embodiment of the refrigerator electronic damper device of the present invention, as shown in this connection is connected to the heat generating resistor (8) in parallel with the temperature control switch (S1) and compression with the door switch (S2) The motor 11 and the cold air circulation fan motor 3 are connected in series, and the compressor motor 11 and the cold air circulation fan motor 3 are connected in parallel, and the cold air circulation fan motor 3 and the door switch are connected in parallel. The operation of one embodiment of the present invention configured as (S2) connected in series and thus configured will be described.

먼저, 온도조절스위치(S1)가 폐로되었을 경우에 상기 온도조절스위치(S1)의 내부저항은 제로(ZERO)에 근사하고 상대적으로 발열저항(8)의 저항값은 수십K

Figure pat00003
이므로 전류는 전자식댐퍼(5)의 온도조절스위치(S1)로 바이패스(BY PASS)되어 상기 발열저항(8)은 발열되지 않는다.First, when the temperature control switch (S1) is closed, the internal resistance of the temperature control switch (S1) is close to zero (ZERO) and the resistance value of the heating resistance (8) is relatively tens of K
Figure pat00003
Therefore, the current is bypassed to the temperature control switch S1 of the electronic damper 5 so that the heat generating resistor 8 does not generate heat.

이때, 압축기용모터(11) 및 냉기순환용팬모터(3)는 정상적으로 운전되는데, 여기서 상기 냉기순환용팬모터(3)는 도어스위치(S2)의 온/오프 동작에 의하여 제어된다.At this time, the compressor motor 11 and the cold air circulation fan motor 3 are normally operated, where the cold air circulation fan motor 3 is controlled by the on / off operation of the door switch S2.

반대로, 상기 온도조절스위치(S1)가 개로 되었을 경우에 이 온도조절스위치(S1)의 내부저항이 무한대이므로 발열저항(8)에 대한 압축기용모터(11) 및 냉기순환용팬모터(8)가 직렬로 연결되고, 또한 상기 압축기용모터(11)와 냉기순환용팬모터(3)는 병렬로 연결된다.On the contrary, when the temperature control switch S1 is opened, the internal resistance of the temperature control switch S1 is infinite, so that the compressor motor 11 and the cold air circulation fan motor 8 with respect to the heating resistance 8 are in series. The compressor motor 11 and the cold air circulation fan motor 3 are connected in parallel.

이에따라, 상기 압축기용모터(11)와 냉기순환용팬모터(3)의 병렬 합성저항은 수십~수백

Figure pat00004
이고, 발열저항(8)의 저항치는 수십
Figure pat00005
이므로 상기 직렬회로의 분압비는 100대1 이상의 분압을 이루어 전원전압의 대부분은 발열저항(8)에 걸리게되어 이 발열저항(8)은 정상 발열하고, 상기 압축기용모터(11) 및 냉기순환용팬모터(3)는 10볼트 미만의 낮은 전압이 걸리므로 정지 상태에서 거의 전력소모가 없게 된다.Accordingly, the parallel synthesis resistance of the compressor motor 11 and the cold air circulation fan motor 3 is several tens to hundreds.
Figure pat00004
The resistance value of the heat generating resistor 8 is several tens
Figure pat00005
Therefore, the divided voltage ratio of the series circuit is equal to or greater than 100 to 1, so that most of the power supply voltage is applied to the heating resistor (8). This heating resistor (8) generates heat normally. The motor 3 has a low voltage of less than 10 volts, resulting in almost no power consumption at standstill.

이상에서 상세히 설명한 바와같이 본 발명은 온도조절스위치가 개로되었을 때만 분압에 의해 저항이 발열되도록함으로써 저항의 발열시간을 줄여 제품의 소비전력을 절감시킬 수 있는 효과가 있다.As described in detail above, the present invention has the effect of reducing the heat generation time of the resistance by reducing the heat generation time of the resistance by the resistance generated by the partial pressure only when the temperature control switch is opened.

Claims (1)

내장된 가스의 압력변화에 의해 냉기의 공급을 제어하는 댐퍼를 구비한 냉장고의 전자식 댐퍼장치에 있어서, 상기 댐퍼내에 설치된 감온부와; 상기 댐퍼의 동작을 수행하는 팽창변과; 도어스위치와 압축기모터 및 냉기순환용팬모터에 직렬로 배선되어, 상기 팽창변과 감온부내에 봉입된 가스압력을 강제로 변화시키기 위해 가스에 열원을 공급하는 발열저항과; 상기 발열저항과 병렬로 배선되어, 상기 압축기모터와 냉기순환용팬모터의 동작을 제어하는 온도조절스위치를 포함하여 구성한 것을 특징으로 하는 냉장고의 전자식 댐퍼장치.An electronic damper apparatus for a refrigerator having a damper for controlling supply of cold air by a change in pressure of gas contained therein, the electronic damper apparatus comprising: a temperature sensing unit installed in the damper; An expansion valve configured to perform an operation of the damper; A heat generating resistor wired in series to the door switch, the compressor motor, and the cold air circulation fan motor, for supplying a heat source to the gas to forcibly change the gas pressure enclosed in the expansion valve and the temperature sensing portion; And a temperature control switch wired in parallel with the heat generating resistor to control the operation of the compressor motor and the fan air circulation fan motor.
KR1019970052466A 1997-10-14 1997-10-14 Electronic damper apparatus of refrigerator KR100241452B1 (en)

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