CN109222578A - A kind of winter dining table heat insulation device for food - Google Patents

A kind of winter dining table heat insulation device for food Download PDF

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Publication number
CN109222578A
CN109222578A CN201811249828.5A CN201811249828A CN109222578A CN 109222578 A CN109222578 A CN 109222578A CN 201811249828 A CN201811249828 A CN 201811249828A CN 109222578 A CN109222578 A CN 109222578A
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China
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heat preservation
insulation cover
cover
food
semiconductor
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CN201811249828.5A
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Chinese (zh)
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陈国平
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Hunan University of Technology
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Hunan University of Technology
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Priority to CN201811249828.5A priority Critical patent/CN109222578A/en
Publication of CN109222578A publication Critical patent/CN109222578A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00Table service
    • A47G19/26Butter or cheese dishes or covers, with or without cooling or heating devices; Protective covers for food containers
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G23/00Other table equipment
    • A47G23/04Containers with means for keeping food cool or hot

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices For Warming Or Keeping Food Or Tableware Hot (AREA)
  • Cookers (AREA)

Abstract

一种冬天餐桌食物保温装置,它包括直流可调电源、半导体制热器和保温罩,半导体制热器通过螺钉固定在保温罩的穹顶中央部位,并向保温罩内伸出,当直流可调电源向半导体制热器提供直流电时,半导体制热器的热端向保温罩内提供热量,根据环境温度的高低调节直流可调电源的电流大小以调节半导体制热器向保温罩内供热量的大小,也即调节保温罩内的温度,据此对保温罩内的食物进行保温;结构简单,经济高效,安全性好,可靠性高,方便实用。

A winter table food heat preservation device, which includes a DC adjustable power supply, a semiconductor heater and a heat preservation cover. When the power supply provides DC power to the semiconductor heater, the hot end of the semiconductor heater provides heat to the insulation cover, and the current of the DC adjustable power supply is adjusted according to the ambient temperature to adjust the semiconductor heater to supply heat to the insulation cover The size of the heat preservation cover is adjusted, that is, the temperature in the heat preservation cover is adjusted, and the food in the heat preservation cover is kept warm accordingly; the structure is simple, economical and efficient, safe, high reliability, convenient and practical.

Description

A kind of winter dining table heat insulation device for food
Technical field
The present invention relates to a kind of winter dining table heat insulation device for food, the food related in particular on a kind of winter dining table is protected Warm device, it is a kind of to ready-made and lay out the device that the food of table kept the temperature.
Background technique
In weather colder season, one disk of a disk or one bowl are understood after dish is carried out in family or other occasions One bowl of end serves;Cook and need the time, then first it is ready-made with it is rear ready-made, just differed in time many;When last When one dish serves, before ready-made food it is gradually cool, winter cool meal cold dish, mouthfeel is bad, also not to body Benefit, thus with regard to need be simple and efficient, the food heat preservation device that health, popular, every household are all afforded to use.
Have some relevant document reports by domestic Searches of Patent Literature discovery, it is related to the present invention mainly have it is following It is some:
1, Patent No. CN98313018.3, the patent of entitled " thermal insulation carrier for food ", this warm stage are mainly used for dining room Meal insulation, upper part are that a cavity body is used as water container, in cavity body surrounding and bottom surface outer wall equipped with insulating layer, in water container Equipped with electric calorifie installation and part is automatically controlled, it collects meal insulation, holds and be supplied in one, multi-purpose content, good appearance, clearly Clean health, the food of insulation are able to maintain color when taking the dish out of the pot, which can be at automatic heat preserving state, are not necessarily to personnel Operation, easy maintenance is easy, and consume energy low, high financial profit, is suitable for all kinds of collectiveity canteens.
2, Patent No. CN201610956858.4, the patent of invention of entitled " a kind of multifunctional heat insulating plate ", the invention A kind of multifunctional heat insulating plate, including sealing panel and heat preservation plate body, the sealing panel and heat preservation plate body interlocking are disclosed, it is close Cover plate material is tempered glass, and the heat preservation plate body includes screen-printed layers, far infrared heating layer, insulation board bound edge and leads to Wind heat-insulated floorboard, screen-printed layers and far infrared heating layer are fixed on ventilating heat-proof floor;The far infrared heating layer is set There is relay, includes indicator light, switch button and power supply line, the high 20mm of insulation board bound edge, material on the insulation board bound edge For automotive grade aluminium alloy, the ventilating heat-proof floor is equipped with ventilation hole and foot pad;The invention is persistently protected for food and drink Temperature, moment keep delicious flavour, lock nutrition and are not lost;When arctic weather expert's foot is cold, directly in multifunctional heat insulating It warms oneself on plate, which has both the effect that food is stewed slowly, drying clothes article and physical therapy are warming, when advocating brief Life idea still.
3, the design of Patent No. CN201630481955.3, entitled " multifunctional heat insulating plate (blue and white rhythm) " are special Benefit, the design disclose: the title of 1. design prods: multifunctional heat insulating plate (blue and white rhythm);2. the design The purposes of product: the design prod is used for meal insulation, and food temperature is stewed, and food is dried, and warms up # wine, warm tea, hot milk, food Thaw etc.;3. the designing points of the design prod: being the combination of the shape of product, pattern and the two;4. most can be shown that The picture or photo of the design designing points: perspective view.
Although these above-mentioned patents are related to the heat preservation of food, but with it is according to the present invention be simple and efficient, health, Popular attemperator be it is different, i.e., these existing attemperators either heat preservation principle and mode and emphasis all with The present invention is different;Patent No. CN98313018.3, the patent of entitled " thermal insulation carrier for food " are mainly used for eating The meal insulation of hall, using a cavity body as water container, the interior electric calorifie installation and automatic control part of being equipped with of water container is to utilize Electric calorifie installation heats water, to provide the heat source of heat preservation, is suitable for all kinds of collectiveity canteens;Patent No. CN201610956858.4, the patent of invention of entitled " a kind of multifunctional heat insulating plate ", a kind of Multifunctional protective of the disclosure of the invention Warm plate, the device be it is more complicated, cost be also it is higher, the invention and design concept of the invention be it is entirely different, It includes sealing panel and heat preservation plate body, and the sealing panel and heat preservation plate body are rabbeted, and sealing panel material is tempered glass, The heat preservation plate body includes screen-printed layers, far infrared heating layer, insulation board bound edge and ventilating heat-proof floor, screen-printed layers It is fixed on ventilating heat-proof floor with far infrared heating layer, which persistently keeps the temperature for food and drink, and in cold It when weather expert's foot is cold, directly warms oneself on multifunctional heat insulating plate, which has both food and stew slowly, dry clothing The effect that articles and physical therapy keep warm;Patent No. CN201630481955.3, entitled " multifunctional heat insulating plate (blue and white rhythm) " What is involved is a kind of designs for patent.
Summary of the invention
Be simple and efficient it is an object of the invention to for some shortcomings present in existing meal insulation, providing one kind, Health, popular food heat preservation device.
To achieve the goals above, the technical solution used in the present invention is: a kind of winter dining table heat insulation device for food, packet Adjustable power of direct current, semiconductor heating device and insulation cover are included, the power supply line and plug on adjustable power of direct current connect alternating current, direct current Regulated power supply outlet is connect with the connecting terminal on semiconductor heating device;Adjustable power of direct current, power supply line and plug, direct current are adjustable Power outlet is external;It is characterized by: semiconductor heating device is fixed by screws in the dome central part of insulation cover, and to It stretches out in insulation cover, when adjustable power of direct current provides direct current to semiconductor heating device, the hot end P of semiconductor heating device is to guarantor Heat is provided in temperature cover, according to the size of current of the high low adjustment adjustable power of direct current of environment temperature to adjust semiconductor heating device The size of heating load into insulation cover, namely the temperature in insulation cover is adjusted, the food in insulation cover is kept the temperature accordingly.
Further, the heat preservation hood shape is that circle is vaulted, and interior diameter is Φ a, substantially with a thickness of t, insulation cover wall Part and dome part are with R1 transition;Insulation cover is evenly distributed with 8 ribs, and reinforcement rib width is b, and with a thickness of t1, ribs is from top Portion is transitioned into wall part, and diameter of a circle where shape is Φ b, Φ b=2t1+ Φ a;2 are distributed between every two ribs Air hole shares 16 air holes on insulation cover and is uniformly and symmetrically distributed, and aperture is Φ c;Insulation cover dome central part has a square Shape opening, for installing semiconductor heating device and the hot end of semiconductor heating device being allowed to put in insulation cover, the size of rectangular aperture is LxW, L are the width of opening, and W is the length of opening;Opening with a thickness of t3, opening up has a step, with a thickness of T2, the size of step are L2xW2, and L2 is the width of step, and W2 is the length of step, t3+t2=t1, in the step with a thickness of t3 On have 4 screw hole M, for installing semiconductor heating device 3, the center carpenters square cun of screw hole is respectively L1 and W1, be with semiconductor system Installation pore size on hot device 3 is consistent;Two handles, the center of two handles are arranged symmetrically on symmetrical two ribs Away from for L3, it is highly h that diameter, which is Φ d,.
Further, the inside clear height of the insulation cover is H, at the top of the height of H=S+ food container+food container and Due spacing between semiconductor heating device bottom, S are that semiconductor heating device protrudes into the height in insulation cover.
Further, the heat preservation cover material is PP.
The invention has the advantages that a kind of winter dining table heat insulation device for food, it includes adjustable power of direct current, semiconductor Heat-producing machine and insulation cover, semiconductor heating device are fixed by screws in the dome central part of insulation cover, and stretch into insulation cover Out, when adjustable power of direct current provides direct current to semiconductor heating device, the hot end of semiconductor heating device is provided into insulation cover Heat, according to the size of current of the high low adjustment adjustable power of direct current of environment temperature to adjust semiconductor heating device into insulation cover The size of heating load, namely the temperature in insulation cover is adjusted, the food in insulation cover is kept the temperature accordingly;Structure is simple, warp Efficiently, safety is good, and high reliablity is convenient and practical for Ji.
Detailed description of the invention
Fig. 1 is the assembling structure schematic diagram of one embodiment of the invention (A-A revolved section makees main view);
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the partial enlarged view at position among Fig. 1;
Fig. 4 be part 1(insulation cover) main view;
Fig. 5 be part 1(insulation cover) top view;
Fig. 6 is the partial enlarged view of Fig. 4 right half part;
Fig. 7 is the partial enlarged view of Fig. 4 left-half;
Fig. 8 is the partial enlarged view (reflection rectangular step opening and screw hole etc.) at position among Fig. 4;
Fig. 9 is the partial enlarged view (reflection rectangular step plane of the opening size) at position among Fig. 5;
Figure 10 is enlarged drawing at F;
Figure 11 is enlarged drawing at G;
Figure 12 is the partial enlarged view of the lower part Fig. 5 (rib width is reinforced in reflection);
Figure 13 is the partial enlarged view (reflection power supply line and plug 7) of Fig. 1 upper left quarter;
In figure: 1, insulation cover;2, screw;3, semiconductor heating device;4, connecting terminal;5, adjustable power of direct current outlet;6, direct current Regulated power supply;7, power supply line and plug.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be further described.
By attached drawing it can be seen that the present invention is a kind of winter dining table heat insulation device for food, including adjustable power of direct current, half Conductor heat-producing machine and insulation cover, power supply line and plug on adjustable power of direct current connect alternating current, adjustable power of direct current outlet and half Connecting terminal connection on conductor heat-producing machine;Adjustable power of direct current, power supply line and plug, adjustable power of direct current outlet are external; It is characterized by: semiconductor heating device is fixed by screws in the dome central part of insulation cover, and stretched out into insulation cover, when When adjustable power of direct current provides direct current to semiconductor heating device, the hot end P of semiconductor heating device provides heat into insulation cover, According to the size of current of the high low adjustment adjustable power of direct current of environment temperature to adjust the heat supply into insulation cover of semiconductor heating device The size of amount, namely the temperature in insulation cover is adjusted, the food in insulation cover is kept the temperature accordingly.
Further, the heat preservation hood shape is that circle is vaulted, and interior diameter is Φ a, substantially with a thickness of t, insulation cover wall Part and dome part are with R1 transition;Insulation cover is evenly distributed with 8 ribs, and reinforcement rib width is b, with a thickness of t1, ribs outer ring Place diameter of a circle is Φ b, Φ b=2t1+ Φ a;2 air holes are distributed between every two ribs, share 16 on insulation cover A air hole is uniformly and symmetrically distributed, and aperture is Φ c;Insulation cover dome central part has a rectangular aperture, for installing semiconductor Heat-producing machine simultaneously allows the hot end of semiconductor heating device to put in insulation cover, and the size of rectangular aperture is LxW, and L is the width of opening, and W is The length of opening;Opening with a thickness of t3, opening up has a step, and with a thickness of t2, the size of step is L2xW2, L2 For the width of step, W2 is the length of step, and t3+t2=t1 has 4 screw hole M on the step with a thickness of t3, for installing half Conductor heat-producing machine 3, the center carpenters square cun of screw hole are respectively L1 and W1, be with the installation pore size phase one on semiconductor heating device 3 It causes;It is arranged symmetrically two handles on symmetrical two ribs, away from for L3, diameter is Φ d, is highly for the centers of two handles h。
Further, the inside clear height of the insulation cover is H, at the top of the height of H=S+ food container+food container and Due spacing between semiconductor heating device bottom, S are that semiconductor heating device protrudes into the height in insulation cover.
Further, the heat preservation cover material is PP.
Specific embodiments of the present invention are as follows:
As shown in attached drawing 1- attached drawing 13, the present invention is a kind of winter dining table heat insulation device for food, including adjustable power of direct current 6, half Conductor heat-producing machine 3 and insulation cover 1, power supply line and plug 7 on adjustable power of direct current 6 connect alternating current, adjustable power of direct current outlet 5 It is connect with the connecting terminal 4 on semiconductor heating device 3;Adjustable power of direct current 6, power supply line and plug 7, adjustable power of direct current outlet 5 is external;It is characterized by: semiconductor heating device 3 by screw 2 be fixed on insulation cover 3 dome central part (referring to Fig. 1, Fig. 3 and Figure 10), and stretched out into insulation cover 1;Adjustable power of direct current 6 provides direct current, semiconductor system to semiconductor heating device 3 The hot end P of hot device 3 provides heat into insulation cover 1, according to the size of current of the high low adjustment adjustable power of direct current 6 of environment temperature To adjust the size of the heating load into insulation cover 1 of semiconductor heating device 3, namely the temperature in insulation cover 1 is adjusted, accordingly to heat preservation The food placed in cover 1 is kept the temperature.
Further, 1 shape of insulation cover is that circle is vaulted, and interior diameter is that Φ a(is shown in Fig. 4, Fig. 6), substantially with a thickness of t (see Fig. 4, Fig. 7), 1 wall part of insulation cover and dome part are with R1 transition (referring to fig. 4, Fig. 7);Uniformly distributed 8 reinforcements of insulation cover 1 Rib, reinforcing rib width is b(referring to Figure 12), with a thickness of t1(referring to Fig. 6), diameter of a circle where ribs outer ring is Φ b, Φ b= 2t1+ Φ a (see Figure 11, G amplification);2 air holes are distributed between every two ribs, 16 air holes are shared on insulation cover Be uniformly and symmetrically distributed, aperture be Φ c(referring to fig. 4, Fig. 7);Insulation cover dome central part has a rectangular aperture (referring to fig. 4, to scheme 6, Fig. 8), for installing semiconductor heating device 3 and the hot end of semiconductor heating device 3 being allowed to put in insulation cover 1, the size of rectangular aperture It is the width of opening for LxW, L, W is the length of opening (referring to Fig. 5, Fig. 9);Opening with a thickness of t3, opening up has One step, with a thickness of t2(referring to Fig. 9), the size of step is L2xW2, and L2 is the width of step, and W2 is the length of step, t3+ T2=t1(referring to fig. 4, Fig. 6 and Fig. 8), have 4 screw hole M, on the step with a thickness of t3 for installing semiconductor heating device 3(ginseng See Fig. 3, Fig. 4, Fig. 6, Fig. 8, Fig. 9), the center carpenters square cun of screw hole is respectively L1 and W1(referring to Fig. 9), it be with semiconductor heating device Installation pore size on 3 is consistent;Be arranged symmetrically two handles on symmetrical two ribs, the centers of two handles away from for L3(is shown in Fig. 9), diameter is Φ d, highly sees Fig. 6 for h().
Further, the inside clear height of the insulation cover is H, at the top of the height of H=S+ food container+food container and Due spacing between semiconductor heating device bottom, S are that semiconductor heating device protrudes into the height in insulation cover (referring to Fig. 1 and figure 3).
Further, 1 material of insulation cover is PP.
The invention has the advantages that a kind of winter dining table heat insulation device for food, it includes adjustable power of direct current, semiconductor Heat-producing machine and insulation cover, semiconductor heating device are fixed by screws in the dome central part of insulation cover, and stretch into insulation cover Out, when adjustable power of direct current provides direct current to semiconductor heating device, the hot end of semiconductor heating device is provided into insulation cover Heat, according to the size of current of the high low adjustment adjustable power of direct current of environment temperature to adjust semiconductor heating device into insulation cover The size of heating load, namely the temperature in insulation cover is adjusted, the food in insulation cover is kept the temperature accordingly;Structure is simple, warp Efficiently, safety is good, and high reliablity is convenient and practical for Ji.
It will be apparent that above-described embodiment is simply to illustrate that example cited by the present invention, any common skill in the art Simply changing and replacing for art personnel is all within protection of the invention.

Claims (3)

1.一种冬天餐桌食物保温装置,包括直流可调电源(6)、半导体制热器(3)和保温罩(1);直流可调电源(6)上的电源线及插头(7)接交流电,直流可调电源出线(5)与半导体制热器(3)上的接线端子(4)连接;直流可调电源(6)、电源线及插头(7),直流可调电源出线(5)均外置;其特征在于:半导体制热器(3)通过螺钉(2)固定在保温罩(3)的穹顶中央部位,并向保温罩(1)内伸出;直流可调电源(6)向半导体制热器(3)提供直流电,半导体制热器(3)的冷端P向保温罩(1)内提供热量,根据环境温度的高低调节直流可调电源(6)的电流大小以调节半导体制热器(3)向保温罩(1)内供热量的大小,也即调节保温罩(1)内的温度,据此对保温罩(1)内放置的食物进行保温。1. A winter table food heat preservation device, comprising a DC adjustable power supply (6), a semiconductor heater (3) and a thermal insulation cover (1); a power cord and a plug (7) on the DC adjustable power supply (6) are connected The AC, DC adjustable power outlet (5) is connected to the terminal (4) on the semiconductor heater (3); the DC adjustable power source (6), the power cord and the plug (7), the DC adjustable power outlet (5) ) are external; it is characterized in that: the semiconductor heater (3) is fixed to the central part of the dome of the thermal insulation cover (3) by screws (2), and extends into the thermal insulation cover (1); the DC adjustable power supply (6) ) provides DC power to the semiconductor heater (3), the cold end P of the semiconductor heater (3) provides heat to the heat preservation cover (1), and adjusts the current of the DC adjustable power supply (6) according to the ambient temperature to The amount of heat supplied by the semiconductor heater (3) to the heat preservation cover (1) is adjusted, that is, the temperature in the heat preservation cover (1) is adjusted, and the food placed in the heat preservation cover (1) is kept warm accordingly. 2.如权利要求1所述的一种冬天餐桌食物保温装置,其特征在于,所述的保温罩(1)形状为圆穹形,内直径为Φa,基本厚度为t,保温罩(1)墙壁部分与穹顶部分以R1过渡;保温罩(1)均布8根加强肋,加强肋宽度为b,厚度为t1,加强肋外圈所在圆的直径为Φb,Φb=2t1+Φa;每两根加强肋之间分布有2个透气孔,保温罩上共有16个透气孔均匀对称分布,孔径为Φc;保温罩穹顶中央部位有一矩形开口,用来安装半导体制热器(3)并让半导体制热器(3)的冷端伸进保温罩(1),矩形开口的尺寸为LxW, L为开口的宽度,W为开口的长度;开口处的厚度为t3,开口处往上有一台阶,厚度为t2,台阶的尺寸为L2xW2, L2为台阶的宽度,W2为台阶的长度,t3+t2=t1,在厚度为t3的台阶上有4个螺孔M,用来安装半导体制热器(3),螺孔的中心距尺寸分别为L1和W1,要与半导体制热器(3)上的安装孔尺寸相一致;在对称的两根加强肋上对称布置两个把手,两个把手的中心距为L3,直径为Φd,高度为h。2. A winter table food heat preservation device according to claim 1, characterized in that the heat preservation cover (1) has a dome shape, an inner diameter of Φa, a basic thickness of t, and the heat preservation cover (1) The wall part and the dome part are transitioned by R1; the thermal insulation cover (1) is evenly distributed with 8 reinforcing ribs, the width of the reinforcing ribs is b, the thickness is t1, the diameter of the circle where the outer ring of the reinforcing ribs is located is Φb, Φb=2t1+Φa; every two There are 2 ventilation holes distributed between the reinforcing ribs. There are 16 ventilation holes on the insulation cover, which are evenly and symmetrically distributed, with a diameter of Φc. There is a rectangular opening in the center of the insulation cover dome, which is used to install the semiconductor heater (3) and let the semiconductor The cold end of the heater (3) extends into the insulation cover (1), the size of the rectangular opening is LxW, L is the width of the opening, and W is the length of the opening; the thickness of the opening is t3, and there is a step up from the opening. The thickness is t2, the size of the step is L2xW2, L2 is the width of the step, W2 is the length of the step, t3+t2=t1, there are 4 screw holes M on the step with the thickness t3, which are used to install the semiconductor heater ( 3) The center-to-center distances of the screw holes are L1 and W1 respectively, which should be consistent with the mounting holes on the semiconductor heater (3); two handles are symmetrically arranged on the two symmetrical reinforcing ribs, and the The center distance is L3, the diameter is Φd, and the height is h. 3.如权利要求1所述的一种冬天餐桌食物保温装置,其特征在于,所述的保温罩(1)的内部净高为H,H=S+食物容器的高度+食物容器顶部和半导体制热器(3)底部之间应有的间距,S为半导体制热器(3)伸入保温罩内(1)的高度。3. A winter table food heat preservation device according to claim 1, characterized in that, the internal net height of the heat preservation cover (1) is H, H=S+height of the food container+the top of the food container and the semiconductor material. The distance between the bottoms of the heaters (3), S is the height of the semiconductor heaters (3) extending into the heat preservation cover (1).
CN201811249828.5A 2018-10-25 2018-10-25 A kind of winter dining table heat insulation device for food Pending CN109222578A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH079231U (en) * 1993-07-20 1995-02-10 積水化成品工業株式会社 Insulation container
WO2008019805A2 (en) * 2006-08-17 2008-02-21 Oliver Gneuss Serving device
KR100949904B1 (en) * 2009-04-03 2010-03-26 김종우 The food and custody device where the peltier element had built-in
CN201612449U (en) * 2009-09-01 2010-10-27 周建达 Multifunctional food cover
CN101986970A (en) * 2009-07-30 2011-03-23 金祚献 Clamped connection dish cover
CN203458155U (en) * 2013-07-15 2014-03-05 宜章县欧奕尔家电制造有限公司 Dining table dish fresh-keeping cover
CN203735933U (en) * 2014-03-19 2014-07-30 彭龚 Thermal insulating and freshness retaining vegetable cover
CN205994358U (en) * 2016-06-23 2017-03-08 孙磊 Ware to steamed dumplings insulation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH079231U (en) * 1993-07-20 1995-02-10 積水化成品工業株式会社 Insulation container
WO2008019805A2 (en) * 2006-08-17 2008-02-21 Oliver Gneuss Serving device
KR100949904B1 (en) * 2009-04-03 2010-03-26 김종우 The food and custody device where the peltier element had built-in
CN101986970A (en) * 2009-07-30 2011-03-23 金祚献 Clamped connection dish cover
CN201612449U (en) * 2009-09-01 2010-10-27 周建达 Multifunctional food cover
CN203458155U (en) * 2013-07-15 2014-03-05 宜章县欧奕尔家电制造有限公司 Dining table dish fresh-keeping cover
CN203735933U (en) * 2014-03-19 2014-07-30 彭龚 Thermal insulating and freshness retaining vegetable cover
CN205994358U (en) * 2016-06-23 2017-03-08 孙磊 Ware to steamed dumplings insulation

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Application publication date: 20190118