KR940001589Y1

KR940001589Y1 - Freezer

Info

Publication number: KR940001589Y1
Application number: KR2019880012540U
Authority: KR
Inventors: 송준일
Original assignee: 주식회사 금성사; 최근선
Priority date: 1988-07-30
Filing date: 1988-07-30
Publication date: 1994-03-19
Also published as: KR900003372U

Abstract

내용 없음.No content.

Description

Refrigerator completion indicator

제1도는 본 고안에 따른 센서을 내장하고 있는 얼음그릇의 구조도.1 is a structure diagram of an ice bowl containing a sensor according to the present invention.

제2도는 제1도의 ″가″부 상세도.2 is a subdivisional detail of FIG.

제3도는 본 고안에 따른 제빙완료 표시장치의 동작회로도.3 is an operation circuit diagram of an ice making completion display device according to the present invention.

제4도는 본 고안에 따른 습도센서의 특징 그래프도.4 is a characteristic graph of the humidity sensor according to the present invention.

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

1 : 얼음그릇 2 : 광센서1: ice bowl 2: light sensor

2' : 발광부 2″ : 수광부2 ': light emitting part 2 ″: light receiving part

3 : 습도센서 4 : AND 게이트3: humidity sensor 4: AND gate

5 : 비교기 6 : 발광다이오드5: comparator 6: light emitting diode

본 고안은 냉장고의 제빙완료 표시장치에 관한 것으로, 특히 냉장고의 제빙용 얼음그릇에 광센서와 습도센서를 장치하여 냉장고의 문을 열지 않고도 제빙완료를 알수 있도록 한 냉장고의 제빙완료 표시장치에 관한 것이다.The present invention relates to an ice-making completion display device of a refrigerator, and more particularly, to an ice-making completion display device of a refrigerator in which an optical sensor and a humidity sensor are installed in an ice-ice bowl of a refrigerator so as to know the ice-making completion without opening a door of the refrigerator. .

종래 냉장고에는 제빙완료 표시장치가 설치되어 있지 않기 때문에 사용자가 냉장고 문을 열어 얼음그릇을 확인해야 하며, 이에 따라 불필요한 전력이 낭비됨은 물론 번거로움을 피할수 없었다.Since the refrigerator does not have a deicing completion display device, the user needs to check the ice bowl by opening the refrigerator door. Accordingly, unnecessary power is wasted and troublesome.

본 고안의 목적은 종래의 이와같은 불편함을 해결하기 위해 안출된 것으로 냉장고의 얼음그릇에 광센서 및 습도센서를 내장하여 형성되는 접점을 동작회로에 접속시키며, 동작회로에 발광다이오드를 연결하여 상기 발광다이오드를 냉동실 도어 전면에 설치하여 사용자로 하여금 제빙상태를 쉽게 나타낼수 있게 하는바, 이하, 첨부도면에 따라 그 구성 작용 및 효과를 상세히 설명하기로 한다.The object of the present invention is to solve such inconvenience in the prior art by connecting a contact formed by the optical sensor and humidity sensor built into the ice bowl of the refrigerator to the operation circuit, by connecting the light emitting diode to the operation circuit The light emitting diode is installed on the front surface of the freezer compartment so that the user can easily indicate the ice making state. Hereinafter, the construction and effects thereof will be described in detail according to the accompanying drawings.

제1도는 본 고안에 의한 광센서 및 습도센서가 내장된 제빙용 얼음 그릇의 전체구조도로서, 제1도의 ″가″부는 제2도에 상세히 도시한 바와같이 발광부(2')와 수광부(2″)로 구성된 광센서(2)와 습도센서(3)를 장치하고, 상기 광센서(2)와 습도센서(3)의 접점(A-F)이 얼음그릇(1)에 매설되고, 냉장고의 얼음그릇(1)지지대에 상기 접점(A-F)에 대응하는 접점(A1-F1 : 도시하지 않음)을 형성하고, 상기 접점(A-F)에 표시용 발광다이오드(6)가 연결된 동작회로부(제3도)를 접속하여 구성한다.FIG. 1 is an overall structure diagram of an ice tray for ice making with a light sensor and a humidity sensor according to the present invention. The ″ ga ″ portion of FIG. 1 is a light emitting part 2 ′ and a light receiving part 2 as shown in detail in FIG. 2. And a light sensor (2) and a humidity sensor (3) constituted by ″, and the contact point (AF) of the light sensor (2) and the humidity sensor (3) is embedded in the ice bowl (1), and the ice bowl of the refrigerator. (1) forming a contact (A1-F1: not shown) corresponding to the contact point AF on the support, and operating circuit portion (FIG. 3) to which the display light emitting diode 6 is connected to the contact point AF. Connect and configure.

제빙용 얼음그릇(1)저면에 광센서(2)의 빛이 투과될 수 있도록 발광부(2')와 수광부(2″)를 사이를 볼록하게 형성하며, 얼음그릇(1)의 접점 부위와 얼음그릇 지지대에 형성된 접점부위가 상호 일치되며, 착탈 가능하도록 형성한다.The light emitting part 2 'and the light receiving part 2 ″ are formed convexly between the bottom of the ice bowl 1 so that the light of the optical sensor 2 can pass therethrough, and the contact portion of the ice bowl 1 Contact points formed on the ice bowl support are mutually matched, and formed to be removable.

동작회로부는 얼음그릇 접점과 일치하도록 구성된 얼음그릇 지지대의 작접점 부위에 전원과 게이트의 일측 입력과 비교기의 반전부로 접지로 연결되고 상기 비교기(5)의 타측입력은 전원에 연결하여 기준전위를 형성하고 비교기의 출력은 게이트의 타측입력에 연결하여 상기 게이트의 출력에 따라 제빙완료용 발광다이오드(6)가 점등될 수 있도록 하고 있는 것이다.The operation circuit part is connected to the ground of the input of one side of the power source and the gate and the inverting part of the comparator at the contact point of the ice bowl support configured to match the ice bowl contact point, and the other input of the comparator 5 is connected to the power source to form a reference potential. The output of the comparator is connected to the other input of the gate so that the de-icing light emitting diode 6 can be turned on according to the output of the gate.

제3도는 본 고안에 따른 제빙완료 표시장치의 동작회로도서 얼음 그릇(1)형성된 광센서 및 습도센서(2,3)의 접점(A)는 AND 게이트(4)의 제2입력에 입력됨과 동시에 저항(R2)을 통해 전원(VCC)에 연결되며, 접점(E)는 비교기(5)의 제2입력 및 저항(R3)을 통해 전원(VCC)에 연결되고 접점(B,D,F)은 각각 접지된다.3 is an operation circuit diagram of the ice-making completion display device according to the present invention, while the contacts A of the optical sensors and the humidity sensors 2 and 3 formed in the ice bowl 1 are input to the second input of the AND gate 4, It is connected to the power supply VCC through a resistor R2, the contact point E is connected to the power supply VCC through the second input of the comparator 5 and the resistor R3, and the contacts B, D, and F are connected to the power supply VCC. Each is grounded.

또한, 상기 비교기(5)의 제1입력은 저항(R4)을 통해 전원(VCC)에 연결됨과 동시에 저항(R5)을 통해 접지되며, 비교기(5)의 출력은 AND게이트(4)의 제1입력에 연결되고 상기 게이트(4)의 출력은 제빙완료 표시용 발광다이오드(6)를 통해 접지된다.In addition, a first input of the comparator 5 is connected to the power supply VCC through a resistor R4 and grounded through a resistor R5, and an output of the comparator 5 is connected to a first gate of the AND gate 4. It is connected to an input and the output of the gate 4 is grounded through the light-emitting diode 6 for deicing completion display.

한편, 비교기(5)의 출력단자 AND게이트(4)의 출력단에는 각각 저항(R6,R7)을 통해 전원(VCC)으로 연결된다. 상기 발광다이오드(6)는 사용자가 외부에서 쉽게 확인 가능하도록 냉장고의 냉동실 도어의 전면에 부착하는 것이 좋다.Meanwhile, the output terminal of the comparator 5 and the output terminal of the AND gate 4 are connected to the power supply VCC through resistors R6 and R7, respectively. The light emitting diode 6 is preferably attached to the front of the freezer door of the refrigerator so that the user can easily check from the outside.

상기와 같이 구성된 본장치의 동작을 설명한다.The operation of the apparatus configured as described above will be described.

우선, 사용자가 얼음그릇(1)에 물을 담아 얼음그릇 지지대에 밀어 넣으면 얼음그릇(1)에 형성된 광센서 및 습도센서(2,3)의 접점(A-F)이 상기 지지대에 형성된 대응접점(A1-F1;도시하지 않음)에 연결된다.First, when the user puts water in the ice bowl 1 and pushes it into the ice bowl support, the contact point A1 of the optical sensors and humidity sensors 2 and 3 formed on the ice bowl 1 is formed on the support. -F1; not shown).

이때, 습도센서(3)의 저항이 제4도에서 보인 특성 그래프와 같이 감소하여 비교기(5)의 제1입력(즉, 기준전압)에 비해 제2입력이 낮은 전위가 되므로 비교기(5)의 출력(즉, AND게이트(4)의 입력)은 ″H″상태가 된다.At this time, the resistance of the humidity sensor 3 decreases as shown in the characteristic graph shown in FIG. 4 so that the second input becomes a potential lower than that of the first input of the comparator 5 (that is, the reference voltage). The output (that is, the input of the AND gate 4) is in the ″ H ″ state.

즉, 얼음이 얼지 않았을 경우 광센서(2)의 발광부(2')에서 빛을 내면 피냉동체(물)를 통과하여 수광부(2″)에 전달되며 수광부(2″)의 접점(C,D)이 도통하여 AND게이트(4)의 제2입력에 로우(LOW)가 입력되고, 그 출력도 로우가 되므로 제빙완료 표시용 발광다이오드(6)는 발광하지 않는다.That is, when the ice is not frozen, when the light from the light emitting part 2 'of the optical sensor 2 emits light, it passes through the object to be cooled (water) and is transmitted to the light receiving part 2 ″ and the contact point C of the light receiving part 2 ″ is applied. Since D) is turned on, a low is input to the second input of the AND gate 4, and its output is also low, so that the ice making display LED 6 for deicing completion does not emit light.

한편, 얼음이 얼었을 경우 광센서(2)의 발광부(2')에서 빛을 내면 이 빛은 얼음으로 인해 수광부(2″)에 미소량의 빛만 전달되므로 접점(C,D)의 양단이 불통되어 AND게이트(4)의 제2입력에 하이(High)가 입력되고, AND게이트(4)의 출력이 하이상태가 되어 전원(VCC)으로부터 저항(R7)을 통해 발광다이오드(6)로 전류가 홀러 상기 발광다이오드(6)가 점등되며, 이에 따라 사용자가 제빙이 완료되었음을 알수 있게 된다.On the other hand, when the ice is frozen, when the light emitting part 2 'of the optical sensor 2 emits light, the light is transmitted only to the light receiving part 2 ″ due to the ice so that both ends of the contacts C and D High is inputted to the second input of the AND gate 4, and the output of the AND gate 4 is in a high state, and a current is supplied from the power supply VCC to the light emitting diode 6 through the resistor R7. When the light emitting diodes 6 are turned on, the user can know that ice making is completed.

만약, 얼음그릇(1)에 물이 없을 경우에는 습도센서(3)의 저항값이 제4도의 특성도와 같이 높아지므로 비교기(5)의 제2입력의 전위가 저항(R4,R5)의 분압 전압에 의해 높아지므로, 비교기(5)의 출력이 로우가 되어 제빙이 완료 여부에 무관하게 발광다이오드(6)는 점등되지 않는다.If there is no water in the ice bowl 1, the resistance value of the humidity sensor 3 increases as shown in FIG. 4, so that the potential of the second input of the comparator 5 becomes the divided voltage of the resistors R4 and R5. Since the output of the comparator 5 becomes low, the light emitting diode 6 does not light up regardless of whether ice making is completed.

따라서, 상기와 같이 구성된 본 고안에 의하면 종래와 같이 냉장고의 문을 열어야만 얼음그릇의 물이 얼었는지의 여부를 확인할 수 있던 것을 문을 열지 않고서도 제빙의 완료 여부를 확인할 수 있어 사용이 편리하며, 자구 문을 열어 제빙상태를 확인함으로서 유발되는 전력손실도 방지할 수 있어, 냉장고 전체의 신뢰도를 극대화 시킬수 있게 되는 것이다.Therefore, according to the present invention configured as described above, it is convenient to use it because it is possible to check whether the ice making is completed without opening the door that the water of the ice bowl is frozen only when the door of the refrigerator is opened as in the prior art. In addition, it is possible to prevent the power loss caused by opening the magnetic domain door to check the ice making state, thereby maximizing the reliability of the entire refrigerator.

Claims

An optical sensor (2) and a humidity sensor (3) including a light emitting part (2 ') and a light receiving part (2 ″) are mounted on the outside of the bottom of the ice bowl (1) of the refrigerator, and the light sensor (2) and the humidity sensor (3) are mounted. ) Is buried in an ice bowl, and a contact point corresponding to the contact point is formed on an ice bowl supporter of the refrigerator, and the operation circuit part connected to the display light emitting diode 6 is connected to the contact point An ice-making completion display device, characterized in that the display light emitting diode (6) is installed on the front of the freezer door so as to be identified.

The ice-making completion display device according to claim 1, wherein the bottom of the ice-making bowl is formed convexly between the light emitting part and the light receiving part so that light of the optical sensor can pass therethrough.

The ice-making completion display device of the refrigerator according to claim 1, wherein the contact portion of the ice bowl and the contact portion formed on the ice bowl support are configured to be mutually matchable and detachable.

According to claim 1, wherein the operation circuit is connected to the ground and the inverting portion of the comparator and the input of one side of the power supply and the gate to each contact portion of the ice bowl support configured to match the ice vessel contact and the other input of the comparator And a reference potential, and an output of the comparator connected to an input of the other side of the gate so that the light emitting diode for deicing completion can be turned on according to the output of the gate.