JPH06135A - Warmer - Google Patents
WarmerInfo
- Publication number
- JPH06135A JPH06135A JP16145392A JP16145392A JPH06135A JP H06135 A JPH06135 A JP H06135A JP 16145392 A JP16145392 A JP 16145392A JP 16145392 A JP16145392 A JP 16145392A JP H06135 A JPH06135 A JP H06135A
- Authority
- JP
- Japan
- Prior art keywords
- storage material
- heat storage
- heat
- upper plate
- fins
- 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.)
- Granted
Links
- 238000005338 heat storage Methods 0.000 claims description 76
- 239000011232 storage material Substances 0.000 claims description 75
- 239000004576 sand Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000010792 warming Methods 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
Landscapes
- Cookers (AREA)
- Devices For Warming Or Keeping Food Or Tableware Hot (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、蓄熱材容器内に蓄熱材
を充填すると共に、電気ヒータを有し、給食等の調理物
を保温する保温器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulator for filling a heat storage material container with a heat storage material and having an electric heater for keeping food such as food served.
【０００２】[0002]
【従来の技術】近年、給食場やレストラン等で、調理さ
れた調理物を保温するために、調理物容器をその上に載
置して保温する載置台形の保温器が使用されている。こ
の種の保温器として、従来、蓄熱材容器内に蓄熱材を充
填し、蓄熱材容器の底面にヒータを密着させた構造のも
のが知られている（特公平４−１７０４４号公報等参
照）。2. Description of the Related Art In recent years, in order to keep a cooked food warm in a lunch room, a restaurant, etc., a trapezoidal warmer is used which keeps a cooked food container on the cooked food. As this type of heat retainer, there is conventionally known one having a structure in which a heat storage material container is filled with a heat storage material and a heater is brought into close contact with the bottom surface of the heat storage material container (see Japanese Patent Publication No. 4-17044). .
【０００３】[0003]
【発明が解決しようとする課題】この種の保温器の蓄熱
材容器内には、流動性のある煉瓦粉等が蓄熱材として充
填されるが、このような蓄熱材は、粒と粒の間に空間が
生じているため、充填後にその体積が減少する場合があ
り、容器内の蓄熱材の体積が減少すると、蓄熱材容器の
上面を形成する保温面と蓄熱材との間に空間が生じ、保
温面への熱伝導が阻害され、保温効率が低下する問題が
あった。The heat storage material container of this type of heat retainer is filled with fluid brick powder or the like as the heat storage material. Since there is a space in the container, its volume may decrease after filling, and when the volume of the heat storage material in the container decreases, a space is created between the heat retaining surface forming the upper surface of the heat storage material container and the heat storage material. However, there is a problem that heat conduction to the heat retaining surface is hindered and heat retaining efficiency is reduced.
【０００４】また、この保温器では、ヒータが蓄熱材容
器の底面に下側から密着される構造のため、ヒータの熱
が下面から外部へ放散され、加熱効率が低いという問題
もあった。Further, in this heat retaining device, since the heater is in close contact with the bottom surface of the heat storage material container from the lower side, the heat of the heater is dissipated from the lower surface to the outside, and the heating efficiency is low.
【０００５】本発明は、上記の点に鑑みてなされたもの
で、電気ヒータから蓄熱材への加熱効率を向上させると
共に、蓄熱材から保温面となる上板への熱伝導を良好に
して保温効率を向上させることができる保温器を提供す
ることを目的とする。The present invention has been made in view of the above points, and improves the heating efficiency from the electric heater to the heat storage material, and also improves the heat conduction from the heat storage material to the upper plate serving as the heat retention surface. It is an object of the present invention to provide a warmer that can improve efficiency.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の保温器は、蓄熱材容器内に蓄熱材を充填
し、電気ヒータを備えた保温器において、蓄熱材容器内
に電気ヒータが蓄熱材中に埋設されるように配置され、
蓄熱材容器上部に位置する上板の裏面に複数のフィンが
突設され、フィンが蓄熱材中に差し込まれていることを
要旨とする。In order to achieve the above object, the heat insulator of the present invention is a heat insulator in which a heat storage material is filled in the heat storage material container and an electric heater is provided. The heater is arranged so as to be embedded in the heat storage material,
The gist of the present invention is that a plurality of fins are projectingly provided on the back surface of the upper plate located above the heat storage material container, and the fins are inserted into the heat storage material.
【０００７】[0007]
【作用】このような構成の保温器を使用する場合、先
ず、電気ヒータに電源を供給して発熱動作させ、内部の
蓄熱材を所定温度に加熱する。加熱された状態で電気ヒ
ータの電源を切り、蓄熱材容器の上板上に、鍋等の調理
物を載置し、被保温物の保温を行う。In the case of using the heat retainer having such a structure, first, the electric heater is supplied with power to cause a heat generation operation, and the internal heat storage material is heated to a predetermined temperature. In the heated state, the electric heater is turned off, and a cook such as a pot is placed on the upper plate of the heat storage material container to keep the object to be warmed.
【０００８】蓄熱材に蓄熱された熱は、直接及びフィン
を通して上板に熱伝導され、その上に載置された被保温
物に熱を伝え、それを保温する。The heat stored in the heat storage material is conducted to the upper plate directly and through the fins, and transfers the heat to the heat-retaining object placed thereon to keep it warm.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】図１は保温器の斜視図（部分断面付き）を
示している。１は上部を開放した矩形箱形の蓄熱材容器
であり、この蓄熱材容器１の内部に、シーズヒータ等か
らなる棒状の電気ヒータ２が複数本、間隔をおいて水平
に並設される。FIG. 1 shows a perspective view (with a partial cross section) of the heat retaining device. Reference numeral 1 denotes a rectangular box-shaped heat storage material container having an open upper portion. Inside the heat storage material container 1, a plurality of rod-shaped electric heaters 2 made of sheathed heaters and the like are horizontally arranged in parallel at intervals.
【００１１】蓄熱材容器１の内部には、電気ヒータ２を
配設した状態で、流動性のある蓄熱材３が充填される。
この蓄熱材３としては、セラミック粉、或は砂が使用さ
れ、蓄熱材容器内に隙間なく、電気ヒータ２の周囲にも
蓄熱材３が接した状態に充填される。蓄熱材３に川砂等
の天然砂を使用してもよく、天然砂を使用すれば、経済
的である。The heat storage material container 1 is filled with a fluid heat storage material 3 with the electric heater 2 disposed therein.
As the heat storage material 3, ceramic powder or sand is used, and the heat storage material 3 is filled in the heat storage material container so that the heat storage material 3 is in contact with the periphery of the electric heater 2 without a gap. Natural sand such as river sand may be used for the heat storage material 3, and if natural sand is used, it is economical.
【００１２】蓄熱材容器１の内部に隙間なく蓄熱材３を
充填した状態で、その上部に上板４が開口部を密閉する
ように被せられる。ところで、この上板４の裏面には複
数のフィン５が下方に向けて突設されている。このた
め、上板４を蓄熱材容器１の上に固定する場合、その裏
面のフィン５を蓄熱材３中に差し込むように上板４を容
器上に被せて閉鎖し、ねじ等で締付固定する。したがっ
て、上板４を取付けて蓄熱材容器１を密閉した状態で、
内部の電気ヒータ２と共にフィン５が蓄熱材３中に完全
に埋った状態となる。In a state where the heat storage material container 1 is filled with the heat storage material 3 without any gap, an upper plate 4 is placed on the upper portion of the heat storage material container 1 so as to seal the opening. By the way, a plurality of fins 5 are provided on the back surface of the upper plate 4 so as to project downward. For this reason, when fixing the upper plate 4 on the heat storage material container 1, the upper plate 4 is closed by covering the container so that the fins 5 on the back surface thereof are inserted into the heat storage material 3, and fixed by tightening with screws or the like. To do. Therefore, with the upper plate 4 attached and the heat storage material container 1 sealed,
With the electric heater 2 inside, the fins 5 are completely buried in the heat storage material 3.
【００１３】このように、上板４の裏面に設けられたフ
ィン５が蓄熱材３中に差し込まれて上板４が蓄熱材容器
１の上部に固定されるため、蓄熱材３の充填後に、蓄熱
材３と上板４との間に隙間が生じたとしても、蓄熱材３
から上板４への熱伝導率はフィン５を通して良好に保持
される。また、フィン５を突設したことにより上板４が
補強され、上板４の曲げ強度を強くし、その変形を防止
することができる。上板４が平坦であれば、鍋等の調理
物との接触面積を充分大きくし、保温効率を良好に保て
る。Thus, since the fins 5 provided on the back surface of the upper plate 4 are inserted into the heat storage material 3 and the upper plate 4 is fixed to the upper part of the heat storage material container 1, after the heat storage material 3 is filled, Even if a gap is generated between the heat storage material 3 and the upper plate 4, the heat storage material 3
The heat conductivity from the to the upper plate 4 is well maintained through the fins 5. Further, since the fins 5 are provided so as to project, the upper plate 4 is reinforced, the bending strength of the upper plate 4 can be increased, and its deformation can be prevented. If the upper plate 4 is flat, the contact area with a cooking product such as a pan can be made sufficiently large to maintain good heat retention efficiency.
【００１４】蓄熱材容器１の周囲は、カバー板内に断熱
材を充填した断熱壁６により包囲される。電気ヒータ２
は、外側に設けたコネクタを介して電源に接続され、保
温時には、電源コードをコネクタから切り離して使用で
きる構造である。また、電気ヒータ２にはサーモスタッ
トが接続される。The heat storage material container 1 is surrounded by a heat insulating wall 6 having a cover plate filled with a heat insulating material. Electric heater 2
Is a structure that is connected to a power source through a connector provided on the outside and can be used by disconnecting the power cord from the connector at the time of heat retention. Further, a thermostat is connected to the electric heater 2.
【００１５】このように構成された保温器を使用する場
合、先ず、電源コードをコネクタに接続して電気ヒータ
２を加熱させ、例えば２時間程度、電気ヒータ２を動作
させて保温器を予熱させる。When the warmer thus constructed is used, first, the power cord is connected to the connector to heat the electric heater 2, and the warmer is preheated by operating the electric heater 2 for about 2 hours, for example. .
【００１６】この予熱の間、サーモスタットによって蓄
熱材容器１の内部の温度は、例えば２３０℃程度に保持
され、上板４の表面温度は例えば約１２０℃となる。During this preheating, the temperature inside the heat storage material container 1 is maintained at about 230 ° C. by the thermostat, and the surface temperature of the upper plate 4 becomes about 120 ° C., for example.
【００１７】そして、約２時間程度の予熱を終了する
と、電源コードを切り離し、保温器を任意の位置に置
き、鍋等の調理物をその上板４上に載置して、保温に入
る。When the preheating for about 2 hours is completed, the power cord is disconnected, the heat retaining device is placed at an arbitrary position, and a cook such as a pot is placed on the upper plate 4 to start the heat retaining.
【００１８】実験によれば、上板４の大きさが５０ｃｍ
×３０ｃｍで、１００Ｖ−８００Ｗのシーズヒータを使
用した保温器で、約２時間の予熱後、容積３リットルで
７５℃の調理物を上板４に載置して保温した場合、３時
間後においても、調理物の温度を約８０℃に維持するこ
とができた。According to experiments, the size of the upper plate 4 is 50 cm.
In a warmer that uses a sheath heater of 100 V-800 W at 30 cm, after preheating for about 2 hours, when a cooked product of 75 ℃ with a volume of 3 liters is placed on the upper plate 4 and kept warm, after 3 hours Also, the temperature of the cooked product could be maintained at about 80 ° C.
【００１９】図２は他の実施例を示している。この保温
器は、別に設けられた保温槽１０内に入れて保温槽内の
雰囲気を加温して、槽内の被保温物を保温するように使
用されるものである。FIG. 2 shows another embodiment. This warmer is used to heat the atmosphere in the heat-retaining tank by placing it in the heat-retaining tank 10 provided separately to keep the object to be warmed in the tank warm.
【００２０】上記と同様に、矩形箱形の蓄熱材容器１の
内部に、シーズヒータ等からなる棒状の電気ヒータ２が
複数本、間隔をおいて水平に並設され、容器の内部に
は、電気ヒータ２を配設した状態で、流動性のある蓄熱
材３が充填される。この蓄熱材３としては、セラミック
粉、或は砂が使用され、蓄熱材容器内に隙間なく、電気
ヒータ２の周囲に蓄熱材３が接した状態に充填される。Similarly to the above, a plurality of rod-shaped electric heaters 2 made of sheathed heaters and the like are horizontally arranged side by side inside a rectangular box-shaped heat storage material container 1, and inside the container, With the electric heater 2 arranged, the fluid heat storage material 3 is filled. Ceramic powder or sand is used as the heat storage material 3, and the heat storage material 3 is filled in the heat storage material container in a state in which the heat storage material 3 is in contact with the periphery of the electric heater 2 without a gap.
【００２１】一方、上板４にはその表面と裏面の両方に
複数のフィン５、７が突設される。上板４は上記と同様
に、裏面のフィン５を蓄熱材３中に差し込むように、蓄
熱材容器１上に被せられ、ねじ等で締付固定される。こ
の保温器は、図２のように、蓄熱材容器１の周囲に断熱
壁は設けられず、上板４上には複数のフィン７が立設さ
れた形態となる。On the other hand, the upper plate 4 is provided with a plurality of fins 5 and 7 on both the front surface and the back surface thereof. Similarly to the above, the upper plate 4 is put on the heat storage material container 1 so that the fins 5 on the back surface are inserted into the heat storage material 3, and is fixed by tightening with a screw or the like. As shown in FIG. 2, this heat retaining device has a configuration in which a heat insulating wall is not provided around the heat storage material container 1 and a plurality of fins 7 are erected on the upper plate 4.
【００２２】このような保温器は、図３に示すように、
箱形の保温槽１０内の底部に入れられ、保温槽１０内に
は、必要に応じてバッテリーを電源としたファン１１が
設けられる。使用時、保温器は、予熱を行った後、この
保温槽１０内に入れられ、被保温物が槽内の棚に載置さ
れ、扉を閉鎖して保温状態とする。As shown in FIG. 3, such an incubator has the following structure.
A fan 11 which is placed at the bottom of the box-shaped heat retaining tank 10 and uses a battery as a power source is provided in the heat retaining tank 10 as needed. During use, the warming device is put in the warming tank 10 after preheating, the objects to be warmed are placed on the shelves in the tank, and the door is closed to keep it warm.
【００２３】このような保温器では、上記のような効果
に加え、上板４の表面に突設されたフィン７が放熱板と
なって、内部の熱を効率良く槽内に放熱し、保温槽内部
を良好に保温することができる。In addition to the above effects, in such a heat retaining device, the fins 7 projecting from the surface of the upper plate 4 serve as a heat radiating plate to efficiently dissipate the internal heat to the inside of the tank and keep it warm. The inside of the tank can be well kept warm.
【００２４】なお、蓄熱材容器１内に充填した蓄熱材３
中に、センメントモルタル等の硬化材を入れ、蓄熱材３
を硬化させて使用することもできる。この場合、硬化材
が硬化する前に上板４のフィン５を蓄熱材３中に差し込
んで容器を閉鎖することになる。The heat storage material 3 filled in the heat storage material container 1
Put a hardening material such as senment mortar into the heat storage material 3
It can also be used after being cured. In this case, the fins 5 of the upper plate 4 are inserted into the heat storage material 3 to close the container before the hardening material is hardened.
【００２５】[0025]
【発明の効果】以上説明したように、本発明の保温器に
よれば、電気ヒータが蓄熱材容器内の蓄熱材中に埋設さ
れるため、電気ヒータの熱が効率良く蓄熱材に熱伝導さ
れ、加熱効率が充分に高い。また、蓄熱材容器上部に位
置する上板の裏面に複数のフィンが突設され、フィンが
蓄熱材中に差し込まれているため、容器内の蓄熱材の体
積が減少し、蓄熱材容器の上板と蓄熱材との間に空間が
生じたとしても、上板への熱伝導が良好に保たれ、保温
効率の低下を防止することができる。As described above, according to the heat insulator of the present invention, since the electric heater is embedded in the heat storage material in the heat storage material container, the heat of the electric heater is efficiently conducted to the heat storage material. , Heating efficiency is high enough. In addition, since a plurality of fins are projected on the back surface of the upper plate located above the heat storage material container and the fins are inserted into the heat storage material, the volume of the heat storage material in the container decreases, and Even if a space is generated between the plate and the heat storage material, the heat conduction to the upper plate is kept good, and the heat insulating efficiency can be prevented from lowering.
【００２６】さらに、蓄熱材として砂を使用すれば、電
気ヒータやフィンとの密着性、蓄熱性、耐久性が良く、
しかも低い製造コストで製造することができる。また、
蓄熱材容器の上板の表面にもフィンを取付けば、保温槽
内にいれて、保温槽内の雰囲気を保温しながら、被保温
物を保温するように使用することができる。Furthermore, when sand is used as the heat storage material, the adhesion to the electric heater and the fins, the heat storage property, and the durability are good,
Moreover, it can be manufactured at a low manufacturing cost. Also,
If fins are also attached to the surface of the upper plate of the heat storage material container, the fins can be put in a heat-retaining tank so that the atmosphere in the heat-retaining tank can be kept warm while keeping the object to be kept warm.
【図１】本発明の一実施例を示す保温器の断面付き斜視
図である。FIG. 1 is a perspective view with a cross section of a warmer showing an embodiment of the present invention.
【図２】他の実施例の保温器の断面付き斜視図である。FIG. 2 is a perspective view with a cross section of a warmer according to another embodiment.
【図３】他の実施例の保温器を入れた保温槽の断面図で
ある。FIG. 3 is a cross-sectional view of a heat retaining tank containing a heat retainer of another embodiment.
１−蓄熱材容器、 ２−電気ヒータ、 ３−蓄熱材、 ４−上板、 ５、７−フィン。 1-Heat storage material container, 2-Electric heater, 3-Heat storage material, 4-Upper plate, 5,7-Fin.
Claims (3)
ータを備えた保温器において、 該蓄熱材容器内に電気ヒータが該蓄熱材中に埋設される
ように配置され、該蓄熱材容器上部に位置する上板の裏
面に複数のフィンが突設され、該フィンが該蓄熱材中に
差し込まれていることを特徴とする保温器。1. A heat retainer having a heat storage material container filled with the heat storage material and provided with an electric heater, wherein the electric heater is arranged in the heat storage material container so as to be embedded in the heat storage material. A warmer characterized in that a plurality of fins are provided on the back surface of an upper plate located above the container, and the fins are inserted into the heat storage material.
とする請求項１記載の保温器。2. The heat retainer according to claim 1, wherein sand is used as the heat storage material.
ンを突設したことを特徴とする請求項１記載の保温器。3. The heat retainer according to claim 1, wherein a plurality of fins are provided on the surface of the upper plate of the heat storage material container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4161453A JP2630538B2 (en) | 1992-06-19 | 1992-06-19 | Warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4161453A JP2630538B2 (en) | 1992-06-19 | 1992-06-19 | Warmer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06135A true JPH06135A (en) | 1994-01-11 |
| JP2630538B2 JP2630538B2 (en) | 1997-07-16 |
Family
ID=15735396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4161453A Expired - Fee Related JP2630538B2 (en) | 1992-06-19 | 1992-06-19 | Warmer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2630538B2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598067U (en) * | 1982-07-02 | 1984-01-19 | 兼田 泰 | solar heat storage device |
| JPS59193334U (en) * | 1983-06-11 | 1984-12-22 | 市原 利二 | Stainless steel pot with increased thermal efficiency |
| JPS62253067A (en) * | 1986-04-25 | 1987-11-04 | 中尾 啓吾 | Floor side laying material of sauna room |
| JPH01135044U (en) * | 1988-03-09 | 1989-09-14 |
-
1992
- 1992-06-19 JP JP4161453A patent/JP2630538B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598067U (en) * | 1982-07-02 | 1984-01-19 | 兼田 泰 | solar heat storage device |
| JPS59193334U (en) * | 1983-06-11 | 1984-12-22 | 市原 利二 | Stainless steel pot with increased thermal efficiency |
| JPS62253067A (en) * | 1986-04-25 | 1987-11-04 | 中尾 啓吾 | Floor side laying material of sauna room |
| JPH01135044U (en) * | 1988-03-09 | 1989-09-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2630538B2 (en) | 1997-07-16 |
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