KR100807247B1 - Water Level Sensing Apparatus and Steam Cooking Apparatus Having the Same - Google Patents

Water Level Sensing Apparatus and Steam Cooking Apparatus Having the Same Download PDF

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KR100807247B1
KR100807247B1 KR1020050035706A KR20050035706A KR100807247B1 KR 100807247 B1 KR100807247 B1 KR 100807247B1 KR 1020050035706 A KR1020050035706 A KR 1020050035706A KR 20050035706 A KR20050035706 A KR 20050035706A KR 100807247 B1 KR100807247 B1 KR 100807247B1
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South Korea
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steam
water level
water
support plate
bucket
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KR1020050035706A
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Korean (ko)
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KR20060112954A (en
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손종철
백상훈
이성호
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삼성전자주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/06—Arrangement or mounting of electric heating elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/18—Indicating, recording or alarm devices actuated electrically
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

외부의 충격에 의해 쉽게 손상되지 않게 하고, 수위를 정확하게 측정할 수 있는 수위감지장치 및 이를 구비한 증기조리장치를 제공한다. 수위감지장치는 일단은 고정단으로 되고 타단은 자유단으로 되도록 증기조리장치의 물통 케이스의 하부에 설치되는 지지판, 지지판의 자유단 측에 설치되어 물통 케이스에 끼워지는 물통과 물의 무게에 의해 지지판의 자유단이 하향으로 처짐에 따라 수위를 측정하게 되는 반도체 압력센서를 구비한다. 지지판에는 하향으로 연장한 돌기가 설치되고, 돌기와 반도체 압력센서 사이에는 압력 전달부재가 설치되어 돌기에 작용하는 압력을 반도체 압력센서로 전달하게 된다.Provided is a water level detection device and a steam cooking device having the same, which are not easily damaged by an external impact and can accurately measure the water level. The water level sensing device is installed at the lower part of the bucket case of the steam cooker so that one end becomes a fixed end and the other end is a free end. It is provided with a semiconductor pressure sensor which measures the water level as the free end sags downward. The support plate is provided with a downwardly extending protrusion, and a pressure transmitting member is installed between the protrusion and the semiconductor pressure sensor to transmit pressure acting on the protrusion to the semiconductor pressure sensor.

Description

수위감지장치 및 이를 구비한 증기조리장치{Water Level Sensing Apparatus and Steam Cooking Apparatus Having the Same}Water Level Sensing Apparatus and Steam Cooking Apparatus Having the Same}

도 1은 본 발명에 따른 수위감지장치가 설치되는 증기조리장치의 구성을 보인 사시도이다.1 is a perspective view showing the configuration of a steam cooking apparatus in which the water level detecting device according to the present invention is installed.

도 2는 도 1의 선 II-II를 따라 취해진 단면도이다.2 is a cross-sectional view taken along the line II-II of FIG. 1.

도 3은 본 발명에 따른 수위감지장치가 설치된 물통 케이스에서 물통이 분리된 것을 보인 확대 단면도이다.3 is an enlarged cross-sectional view showing that the water tank is separated from the water tank case in which the water level sensor according to the present invention is installed.

도 4는 본 발명에 따른 수위감지장치에 물통이 올려져서 수위가 감지되는 것을 보인 확대 단면도이다. Figure 4 is an enlarged cross-sectional view showing that the water level is detected by raising the water tank in the water level detecting device according to the present invention.

*도면의 주요부분에 대한 부호 설명** Description of symbols on the main parts of the drawings *

10: 조리실 20: 급수유닛10: cooking chamber 20: water supply unit

21: 물통 케이스 22: 물통21: Bucket Case 22: Bucket

30: 증기발생유닛 40: 증기공급유닛30: steam generating unit 40: steam supply unit

60: 수위 감지장치 61: 지지판60: level sensor 61: support plate

62: 반도체 압력센서 63: 돌기62: semiconductor pressure sensor 63: protrusion

64: 압력 전달부재 100: 증기조리장치64: pressure transmission member 100: steam cooking apparatus

본 발명은 가격이 싸고 간편하게 수위를 측정할 수 있게 구성된 수위감지장치 및 이를 구비한 증기조리장치에 관한 것이다.The present invention relates to a water level sensing device and a steam cooking apparatus having the same configured to measure the water level at low cost and simply.

증기조리장치와 같이 물을 사용하는 장치에는 물통에 항상 필요한 양의 물이 채워져 있게 하기 위해 물통의 수위를 감지하는 수위감지장치가 설치되어야 한다.Devices that use water, such as steam cookers, should be equipped with a level sensor that detects the water level in the tank to ensure that the water tank is always filled with the required amount of water.

이러한 수위감지장치를 구비한 장치의 일예로 일본 공개특허공보 평7-250761호에는 저수용기의 중량을 검출하기 위한 중량센서를 구비한 급탕장치가 개시되어 있다. 상기 중량센서는 저수용기가 끼워지는 본체의 하부에 배치되어 저수용기의 자중과 물의 무게를 재서 저수용기에 채워진 물의 양을 측정하게 된다.As an example of a device having such a water level sensing device, Japanese Laid-Open Patent Publication No. H7-250761 discloses a hot water supply device having a weight sensor for detecting the weight of a low water container. The weight sensor is disposed under the main body into which the low container is fitted to measure the amount of water filled in the low container by weighing the self weight and the water of the low container.

그러나 급탕장치에 설치된 상기 중량센서는 본체의 하부에서 저수용기와 직접적으로 접촉하여 중량을 검출하게 되는 구조를 갖기 때문에 외부의 충격에 의해 쉽게 손상될 수 있는 단점이 있다.However, since the weight sensor installed in the hot water supply device has a structure that detects the weight by directly contacting the reservoir with the lower portion of the main body, it may be easily damaged by an external impact.

또한, 급탕장치에 설치된 상기 중량센서는 저장용기에 의해 직접 눌려져서 물의 양을 측정하기 때문에 저장용기가 본체에 정확하게 끼워지지 않게 되는 경우에는 물의 양을 정확하게 측정할 수 없게 되는 단점이 있다.In addition, since the weight sensor installed in the hot water supply device is directly pressed by the storage container to measure the amount of water, the amount of water cannot be accurately measured when the storage container is not accurately fitted to the main body.

또한, 중량센서는 일반적으로 가격이 비싸기 때문에 이 중량센서가 설치된 장치의 제조비용을 증대시키게 되는 단점이 있다.In addition, since the weight sensor is generally expensive, there is a disadvantage in that the manufacturing cost of the device in which the weight sensor is installed is increased.

본 발명은 상술한 종래기술의 문제점들을 해결하기 위한 것으로, 본 발명의 목적은 외부의 충격에 의해 쉽게 손상되지 않게 하고, 수위를 정확하게 측정할 수 있으며, 가격이 저렴한 수위감지장치 및 이를 구비한 증기조리장치를 제공하는 것이다.The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is not easily damaged by an external impact, it is possible to accurately measure the water level, low-cost water level sensing device and steam having the same It is to provide a cooking device.

이러한 목적을 달성하기 위한 본 발명에 따른 수위감지장치는,Water level sensing device according to the present invention for achieving this object,

일단은 고정단으로 되고 타단은 자유단으로 되도록 물통 케이스의 하부에 설치되는 지지판, 상기 지지판의 자유단 측에 설치되어 상기 물통 케이스에 끼워지는 물통과 물의 무게에 의해 상기 지지판의 자유단이 하향으로 처짐에 따라 수위를 측정하게 되는 반도체 압력센서를 구비한 것을 특징으로 한다.The free end of the support plate is downwardly supported by the weight of the support plate installed on the lower part of the bucket case, the other end is the free end, the free end of the support plate and the weight of the water tank and water fitted to the bucket case so that one end becomes a fixed end Characterized in that the semiconductor pressure sensor for measuring the water level as sag.

상기 지지판에는 상기 반도체 압력센서의 위치에 대응하여 상기 지지판에서 하향으로 연장한 돌기가 설치되어 상기 지지판에 상기 물통의 하중이 작용하게 되면 상기 돌기가 상기 반도체 압력센서를 누르게 된다.The support plate is provided with a protrusion extending downward from the support plate in correspondence with the position of the semiconductor pressure sensor, and when the load of the bucket acts on the support plate, the protrusion presses the semiconductor pressure sensor.

상기 돌기와 반도체 압력센서 사이에는 압력 전달부재가 설치되어 상기 돌기에 작용하는 압력을 상기 반도체 압력센서로 전달하게 된다.A pressure transmission member is installed between the protrusion and the semiconductor pressure sensor to transfer the pressure acting on the protrusion to the semiconductor pressure sensor.

본 발명에 따른 수위감지장치를 구비한 증기조리장치는, 조리실, 상기 조리실의 외측에 설치되고 물통과 물통 케이스를 구비한 급수유닛, 상기 급수유닛에 설치되는 수위감지장치를 포함하고, 상기 수위감지장치는 상기 물통 케이스의 하부에서 일단은 고정단으로 되고 타단은 자유단으로 되도록 설치되는 지지판, 상기 지지판의 자유단 측의 하부에 설치되어 상기 물통과 물의 무게에 의해 상기 지지판의 자유단이 하향으로 처짐에 따라 수위를 측정하게 되는 반도체 압력센서를 구비한 것을 특징으로 한다.Steam cooking apparatus having a water level detecting device according to the present invention includes a cooking chamber, a water supply unit installed on the outside of the cooking chamber and having a water tank and a bucket case, and a water level sensing device installed in the water supply unit. The device is a support plate which is installed at the lower end of the bucket case and one end is fixed end and the other end is a free end, is installed on the lower side of the free end side of the support plate, the free end of the support plate downward by the weight of the water tank and water Characterized in that the semiconductor pressure sensor for measuring the water level as sag.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대하여 상세하게 설명하고자 한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

도 1은 본 발명에 따른 수위감지장치가 설치된 증기조리장치의 구성을 보인 사시도이고, 도 2는 도 1의 선 II-II를 따라 취해진 단면도이다.1 is a perspective view showing the configuration of a steam cooking apparatus equipped with a level sensor according to the present invention, Figure 2 is a cross-sectional view taken along the line II-II of FIG.

도 1 및 도 2에 도시된 바와 같이, 본 발명에 따른 수위감지장치(60)가 설치되는 증기조리장치(100)는 외관을 형성하는 하우징(1), 하우징(1)의 내부에서 하우징(1)과의 사이에 일정공간이 마련되도록 배치된 조리실(10), 조리실(10)의 개방된 전면을 개폐하는 도어(2), 그리고 조리실(10)의 상부에 설치된 콘트롤 패널(3)을 구비한다.1 and 2, the steam cooking apparatus 100, in which the water level detecting device 60 according to the present invention is installed, has a housing 1 having an external appearance and a housing 1 inside the housing 1; ) Is provided with a cooking chamber 10 arranged to provide a predetermined space between the door, a door 2 for opening and closing the open front of the cooking chamber 10, and a control panel 3 installed above the cooking chamber 10. .

증기조리장치(100)는 또한 조리실(10)로 증기를 공급하기 위해 하우징(1)과 조리실(10) 사이의 공간에 배치되는 급수유닛(20)과 증기발생유닛(30), 그리고 한 쌍의 증기공급유닛(40)을 더 구비한다.The steam cooking apparatus 100 also includes a water supply unit 20, a steam generating unit 30, and a pair of water units 20 disposed in a space between the housing 1 and the cooking chamber 10 to supply steam to the cooking chamber 10. Further provided with a steam supply unit (40).

급수유닛(20)은 조리실(10)의 상부 전방에 설치되어 증기발생유닛(30)으로 증기를 만들기 위한 물을 공급하게 되고, 증기발생유닛(30)은 조리실(10)의 상부 후방에 설치되어 한 쌍의 증기공급유닛(40)으로 증기를 공급하게 되며, 한 쌍의 증기공급유닛(40)은 조리실(10)의 각 측면에 설치되어 음식물을 조리하기 위한 증기를 조리실(10)로 공급하게 된다.The water supply unit 20 is installed in the upper front of the cooking chamber 10 to supply water for making steam to the steam generating unit 30, the steam generating unit 30 is installed in the upper rear of the cooking chamber 10 Steam is supplied to the pair of steam supply units 40, a pair of steam supply unit 40 is installed on each side of the cooking chamber 10 to supply the steam for cooking food to the cooking chamber (10). do.

급수유닛(20)은 물통 케이스(21), 이 물통 케이스(21)에 슬라이드 방식으로 결합되거나 분리되는 물통(22), 그리고 물통(22)과 증기발생유닛(30)을 연결하는 급수관(23)을 구비하여 물통(22)에 채워진 물을 급수관(23)을 통해 증기발생유닛(30)으로 공급하게 된다.The water supply unit 20 is a water tank case 21, a water tank 22 coupled to or separated from the water tank case 21 by a slide method, and a water pipe 23 connecting the water tank 22 and the steam generating unit 30. It is provided to supply the water filled in the bucket 22 to the steam generating unit 30 through the water supply pipe (23).

증기발생유닛(30)은 스팀용기(31), 스팀용기(31)의 내부에 설치되는 히터(32), 스팀용기(31)에 연통된 상태로 결합되는 팬 케이싱(33), 팬 케이싱(33)의 내부에 설치된 송풍팬(34), 그리고 스팀용기(31)와 각 증기공급유닛(40)을 연결하는 복수의 스팀관(35)을 구비하여 스팀용기(31)에서 히터(32)에 의해 만들어진 증기를 스팀관(35)들을 통해 각 증기공급유닛(40)으로 공급하게 된다.The steam generating unit 30 includes a steam container 31, a heater 32 installed inside the steam container 31, a fan casing 33 coupled to the steam container 31 in a communication state, and a fan casing 33. Blowing fan 34 installed inside the) and a plurality of steam pipes 35 for connecting the steam container 31 and each steam supply unit 40 is provided by the heater 32 in the steam container 31 The produced steam is supplied to each steam supply unit 40 through the steam pipe (35).

각 증기공급유닛(40)은 조리실(10)의 각 측면판의 외측에 결합되는 증기덕트(41), 증기덕트(41)의 내부에 설치되는 순환팬(미도시)과 히터(미도시)를 구비하여 이루어진다.Each steam supply unit 40 includes a steam duct 41 coupled to the outside of each side plate of the cooking chamber 10, a circulation fan (not shown) and a heater (not shown) installed inside the steam duct 41. It is made.

조리실(10)의 각 측면판의 중심부와 가장자리에는 각각 다수의 유입공(15)과 유출공(16)이 형성되어서, 조리실(10) 내부에서 음식물과 열교환하여 온도가 떨어진 증기가 각 측면판의 중심부를 통해 증기덕트(41)로 유입되어 과열증기로 바뀐 후 각 측면판의 가장자리를 따라 다시 조리실(10)로 유출되게 된다.A plurality of inlet holes 15 and outlet holes 16 are formed at the center and the edge of each side plate of the cooking chamber 10, so that the temperature of the side plates is reduced by heat exchange with food in the cooking chamber 10. After flowing into the steam duct 41 through the central part and turned into superheated steam, the steam duct 41 flows back to the cooking chamber 10 along the edge of each side plate.

조리실(10)의 상면판에는 증기발생유닛(30)의 팬 케이싱(33)과 연통되는 흡기구(17)가 마련되어서 조리실(10) 내부의 증기가 팬 케이싱(33)에 설치된 송풍팬(34)에 의해 흡입되어 스팀용기(31)에서 발생하는 증기와 함께 증기공급유닛(40)으로 재순환할 수 있게 된다.The upper plate of the cooking chamber 10 is provided with an intake port 17 communicating with the fan casing 33 of the steam generating unit 30 so that the steam inside the cooking chamber 10 is provided in the fan casing 33. Inhaled by the steam can be recycled to the steam supply unit 40 with the steam generated in the 31.

상기와 같이 구성된 증기조리장치(100)의 조리실(10)에 음식물을 넣고서 콘트롤 패널(3)을 조작하여 증기조리장치(100)를 작동시키면 물통(22)의 물이 급수관 (23)을 통해 스팀용기(31)로 공급되어 히터(32)에 의해 가열되게 된다.When food is put into the cooking chamber 10 of the steam cooking apparatus 100 configured as described above and the control panel 3 is operated to operate the steam cooking apparatus 100, the water of the bucket 22 is steamed through the water supply pipe 23. It is supplied to the container 31 and is heated by the heater 32.

히터(32)의 열에 의해 스팀용기(31)에서 만들어진 증기는 송풍팬(34)의 작동에 의해 스팀관(35)들을 통해 각 증기덕트(41)로 보내지고, 계속해서 증기덕트(41)의 내부에 설치된 순환팬과 히터의 작동에 의해 과열증기로 바뀌어서 조리실(10)의 각 측면판에 형성된 다수의 유출공(16)를 통해 조리실(10)로 공급된다.The steam produced in the steam container 31 by the heat of the heater 32 is sent to the respective steam ducts 41 through the steam pipes 35 by the operation of the blower fan 34, and then the steam duct 41 By the operation of the circulation fan and the heater installed therein is converted into the superheated steam is supplied to the cooking chamber 10 through a plurality of outlet holes 16 formed in each side plate of the cooking chamber 10.

조리실(10) 내부의 증기는 또한 측면판의 중심부에 형성된 다수의 유입공(15)을 통해 증기덕트(41)로 유입되어 히터에 의해 온도가 높은 과열증기로 바뀌어서 다시 조리실(10)로 보내지는 재순환을 겪게 됨으로써 음식물을 조리하게 된다.The steam inside the cooking chamber 10 is also introduced into the steam duct 41 through a plurality of inlet holes 15 formed at the center of the side plate, and is converted into a superheated steam having a high temperature by a heater and sent back to the cooking chamber 10. By recycling, food is cooked.

조리실(10) 내부의 증기의 일부는 또한 송풍팬(34)에 의해 배기구(17)를 통해 스팀용기(31)로 흡입되어 스팀용기(31)에서 만들어진 증기와 함께 스팀관(35)들을 통해 증기덕트(41)로 재순환되도록 하여 음식물을 신속하고 균일하게 조리할 수 있게 된다.Some of the steam inside the cooking chamber 10 is also sucked into the steam container 31 through the exhaust port 17 by the blower fan 34 and steams through the steam pipes 35 together with the steam made in the steam container 31. By recycling to the duct 41 it is possible to cook food quickly and uniformly.

이러한 증기조리장치(100)에서 증기를 만들기 위한 물의 양을 측정할 수 있도록 물통 케이스(21)의 하부에는 수위감지장치(60)가 설치되는데, 이하에서는 도 3 및 도 4를 참조하여 본 발명에 따른 수위감지장치(60)의 구성과 작용에 대해 설명한다.The water level detecting device 60 is installed at the bottom of the bucket case 21 so that the amount of water for making steam in the steam cooking apparatus 100 is installed. Hereinafter, the present invention will be described with reference to FIGS. 3 and 4. The configuration and operation of the water level detecting device 60 according to the present invention will be described.

도 3은 본 발명에 따른 수위감지장치가 설치된 물통 케이스에서 물통이 분리된 것을 보인 확대 단면도이고, 도 4는 본 발명에 따른 수위감지장치에 물통이 올려져서 수위가 감지되는 것을 보인 확대 단면도이다.Figure 3 is an enlarged cross-sectional view showing that the water bottle is separated from the bucket case is installed in the water level sensor according to the present invention, Figure 4 is an enlarged cross-sectional view showing that the water level is detected by raising the water level in the water level detection device according to the present invention.

도 3 및 도 4에 도시된 바와 같이, 본 발명에 따른 수위감지장치(60)는 물통 (22)을 지지하는 지지판(61)과, 물통(22)의 하중에 의한 지지판(61)의 처짐에 따라 수위를 감지하는 반도체 압력센서(62)를 구비한다.As shown in Fig. 3 and 4, the water level sensor 60 according to the present invention is a deflection of the support plate 61 for supporting the bucket 22 and the support plate 61 due to the load of the bucket 22 The semiconductor pressure sensor 62 detects the water level.

지지판(61)은 그 후단부가 물통 케이스(21)의 후단부에 나사 결합되어 고정단(61a)으로 되고, 그 선단부가 물통 케이스(21)에서 지지되지 않은 상태로 배치되어 자유단(61b)이 되도록 물통 케이스(21)의 바닥과 약간 이격되어 놓여진다.The supporting plate 61 is screwed to the rear end of the bucket case 21 to become the fixed end 61a, and the free end 61b is disposed so that the front end thereof is not supported by the bucket case 21. It is placed slightly spaced apart from the bottom of the bucket case 21 as much as possible.

반도체 압력센서(62)는 물통 케이스(21)의 바닥 아래에 형성된 공간부(24)에 설치되어 물통(22)의 하중에 의한 지지판(61)의 처짐량에 비례하여 물통(22)에 채워진 물의 양을 측정하여 수위를 감지할 수 있게 된다.The semiconductor pressure sensor 62 is installed in the space 24 formed under the bottom of the bucket case 21, and the amount of water filled in the bucket 22 in proportion to the deflection amount of the support plate 61 by the load of the bucket 22. By measuring the water level can be detected.

이 반도체 압력센서(62)는 외부 압력이 작용하게 되면 저항 변화를 일으켜서 압력을 측정하게 되며, 이러한 압력의 측정을 이용하여 물통(22)에 채워진 물의 양을 계산하여 수위를 측정할 수 있게 된다.When the external pressure is applied, the semiconductor pressure sensor 62 measures the pressure by causing a change in resistance, and the water level can be measured by calculating the amount of water filled in the bucket 22 using the measurement of the pressure.

물통(22)의 하중에 의한 지지판(61)의 자유단(61b)의 처짐을 정확하게 반도체 압력센서(62)로 전달하기 위해 지지판(61)의 하면에는 반도체 압력센서(62)의 위치에 대응하여 하향으로 연장한 돌기(63)가 형성되고, 이 돌기(63)와 반도체 압력센서(62) 사이에는 압력 전달부재(64)가 설치된다.In order to accurately transmit the deflection of the free end 61b of the support plate 61 by the load of the bucket 22 to the semiconductor pressure sensor 62, the lower surface of the support plate 61 corresponds to the position of the semiconductor pressure sensor 62. A downwardly extending projection 63 is formed, and a pressure transmission member 64 is provided between the projection 63 and the semiconductor pressure sensor 62.

따라서 지지판(61)에 물통(22)의 하중이 작용하게 되면 물통(22)의 하중과 비례하여 돌기(63)가 지지판(62)의 자유단(61b)과 함께 하향으로 이동하게 되면서 돌기(63)가 압력 전달부재(64)를 눌러서 반도체 압력센서(62)로 물통(22)의 하중에 따른 압력을 전달하게 된다.Therefore, when the load of the bucket 22 acts on the support plate 61, the protrusion 63 moves downward with the free end 61b of the support plate 62 in proportion to the load of the bucket 22. ) Presses the pressure transmitting member 64 to transfer the pressure according to the load of the water tank 22 to the semiconductor pressure sensor 62.

또한, 물통(22)의 유출구(22a)에는 물통(22)의 유출구(22a)가 급수관(23)에 연결된 경우에는 유출구(22a)를 개방시키고 급수관(23)에서 분리된 경우에는 유출구(22a)를 폐쇄시키는 체크밸브(25)가 설치되어 있다.In addition, when the outlet 22a of the water tank 22 is connected to the water supply pipe 23, the outlet 22a is opened to the outlet 22a of the water tank 22, and when the outlet 22a is separated from the water supply pipe 23, the outlet 22a is opened. A check valve 25 for closing the valve is provided.

이러한 본 발명의 수위감지장치(60)의 작용을 설명하면, 도 3에 도시된 바와 같이 물통(22)을 물통 케이스(21)에서 분리하여 물통(22)에 스팀조리를 위해 필요한 양의 물을 채운 후, 도 4에 도시된 바와 같이 물통(22)을 물통 케이스(21)에 끼우게 되면 물통(22)의 바닥이 지지판(61)의 상면을 따라 슬라이드 이동하여 물통(22)의 유출구(22a)가 급수관(23)에 끼워져서 결합된다.Referring to the operation of the water level detecting device 60 of the present invention, as shown in FIG. 3, the water tank 22 is separated from the water tank case 21, and the water required for steam cooking in the water tank 22 is provided. After filling, when the bucket 22 is inserted into the bucket case 21 as shown in FIG. 4, the bottom of the bucket 22 slides along the upper surface of the support plate 61 to allow the outlet 22a of the bucket 22 to be filled. ) Is fitted to the water supply pipe 23 is coupled.

물통 케이스(21)에 물통(22)이 결합되면 물통(22)의 전체 하중에 비례하여 지지판(61)의 자유단(61b)이 하향으로 처지게 되며, 이에 따라 지지판(61)의 하부에 마련된 돌기(63)가 압력 전달부재(64)를 누르게 되면서 반도체 압력센서(62)가 압력에 반응하게 된다.When the bucket 22 is coupled to the bucket case 21, the free end 61b of the support plate 61 sags downward in proportion to the total load of the bucket 22, and thus is provided below the support plate 61. As the protrusions 63 press the pressure transmitting member 64, the semiconductor pressure sensor 62 responds to the pressure.

이렇게 압력 전달부재(64)를 통해 물통(22)의 하중에 따른 압력이 반도체 압력센서(62)로 전달되면 반도체 압력센서(62)는 압력 전달부재(64)에서 전달되는 압력의 크기를 측정하여 물통(22)에 채워진 물의 양을 측정할 수 있게 되고, 이에 따라 수위를 검출할 수 있게 된다.When the pressure according to the load of the bucket 22 through the pressure transmission member 64 is transmitted to the semiconductor pressure sensor 62, the semiconductor pressure sensor 62 measures the magnitude of the pressure transmitted from the pressure transmission member 64. The amount of water filled in the bucket 22 can be measured, and thus the water level can be detected.

한편, 물통(22)에 채워진 물이 급수관(23)을 통해 증기발생유닛(30)의 스팀용기(31)로 빠져나가게 되면 지지판(61)의 자유단(61b)의 처짐이 감소하게 되면서 반도체 압력센서(62)에서는 물통(22)의 수위가 감소하는 것을 감지하게 되어 물통(22)에 물을 보충할 수 있게 한다.On the other hand, when the water filled in the bucket 22 is discharged to the steam container 31 of the steam generating unit 30 through the water supply pipe 23, the deflection of the free end (61b) of the support plate 61 is reduced while the semiconductor pressure The sensor 62 detects a decrease in the water level of the bucket 22, so that water can be replenished in the bucket 22.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 수위감지장치 및 이를 구비한 증기조리장치는 반도체 압력센서가 물통을 지지하는 지지판에 의해 눌려져서 간편하게 물통의 하중에 따른 압력을 측정할 수 있는 구조를 가져서 정확한 수위를 측정할 수 있게 되고, 반도체 압력센서가 지지판에 의해 외부의 충격으로부터 보호될 수 있게 되며, 제조 및 설치비용이 저렴하게 되며, 이에 따라 이를 구비한 증기조리장치의 제조비용을 절감시킬 수 있고 성능을 향상시킬 수 있는 효과를 갖게 된다.As described in detail above, the water level sensor according to the present invention and the steam cooking apparatus having the same has a structure that the semiconductor pressure sensor can be pressed by the support plate for supporting the bucket to easily measure the pressure according to the load of the bucket The accurate level can be measured, the semiconductor pressure sensor can be protected from external shocks by the support plate, and the manufacturing and installation costs are low, thus reducing the manufacturing cost of the steam cooker having the same. It has the effect of improving performance.

Claims (5)

삭제delete 삭제delete 삭제delete 조리실과, 상기 조리실의 외측에 설치되고 물통과 물통 케이스를 구비한 급수유닛과, 상기 급수유닛에 설치되는 수위감지장치를 포함하는 증기조리장치에 있어서,In the steam cooking apparatus including a cooking chamber, a water supply unit provided on the outside of the cooking chamber and provided with a bucket and a bucket case, and a water level sensing device installed in the water supply unit, 상기 수위감지장치는 일단은 고정단으로 되고 타단은 자유단으로 되도록 물통 케이스의 하부에 설치되는 지지판과,The water level sensing device is provided with a support plate installed in the lower portion of the bucket case so that one end is a fixed end and the other end is a free end; 상기 지지판의 자유단 측에 설치되어 상기 물통 케이스에 끼워지는 물통과 물의 무게에 의해 상기 지지판의 자유단이 하향으로 처짐에 따라 수위를 측정하게 되는 반도체 압력센서를 구비하고, And a semiconductor pressure sensor installed at the free end side of the support plate to measure the water level as the free end of the support plate sags downward due to the weight of the water tank and the water fitted to the bucket case, 상기 지지판에는 상기 반도체 압력센서의 위치에 대응하여 상기 지지판에서 하향으로 연장한 돌기가 설치되며,The support plate is provided with a projection extending downward from the support plate corresponding to the position of the semiconductor pressure sensor, 상기 돌기와 반도체 압력센서 사이에는 압력 전달부재가 설치되어 상기 돌기에 작용하는 압력을 상기 반도체 압력센서로 전달하는,A pressure transmission member is installed between the protrusion and the semiconductor pressure sensor to transfer the pressure acting on the protrusion to the semiconductor pressure sensor. 증기조리장치.Steam cooker. 삭제delete
KR1020050035706A 2005-04-28 2005-04-28 Water Level Sensing Apparatus and Steam Cooking Apparatus Having the Same KR100807247B1 (en)

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