CN200950989Y - Insulated tableware - Google Patents

Abstract

An insulating tableware article comprising: the tableware body (1) with good heat conduction performance and the heater (2) installed on the tableware body (1), wherein the heater (2) comprises a ceramic substrate (21) and a heating film (22) sprayed on the ceramic substrate (21), the ceramic substrate (21) is provided with an inward heating film, the ceramic substrate is sintered at high temperature at the bottom of the tableware body (1), and two electrodes (23) of the heater (2) are arranged at the bottom of the tableware body (1). The heater (2) is powered by a gasket type direct current power supply body (3), and comprises a hollow insulating shell consisting of an upper shell (31) and a bottom cover plate (39), wherein a battery pack (310) consisting of sheet batteries is arranged in the shell, and positive and negative terminals (32) of the battery pack (310) are led to the upper surface of the upper shell (31) through leads (34); the utility model discloses a heat preservation tableware has safety, convenient to use, and the heating is even moreover, enables the food that holds in the tableware and keeps 50 to 60 degrees temperature.

Description

Insulated tableware

technical field

The utility model relates to kitchen utensils, in particular to an electric heat-preserving tableware.

Background technique

There are many regions in the world with a cold climate, and it is cold for one-half of the year. In these cold regions, food needs to be parked for a period of time after being cooked in the kitchen and then moved to the dining table. Especially in severe cold weather, food can get cold very quickly on the table. If the cooled food is reheated in the oven, it will dry out due to overheating and water evaporation, which will affect the taste of the food. Especially all kinds of steaks, such as beef steaks and lamb steaks, are more obvious. The colder these steaks are, the less delicious they are. If the hot food can be kept in the temperature range of 55°C to 60°C from the beginning of the meal to the end of the meal, the taste of the food will not change the texture and texture due to temperature changes. Taste, diners will be able to enjoy a perfect lunch/dinner, eat more and better, and family life will become more perfect.

The Chinese Utility Model Patent No. 02290255.4 discloses a heat-preserving and heating tableware. The heat-preserving and heating tableware has an inner container structure, which is composed of a shell, an inner container, and a heat-retaining heater; the inner container is placed in the shell, and the inner container The bottom surface is in contact with the upper surface of the thermal insulation heater, the lower surface of the thermal insulation heater is installed on the bottom surface in the housing, and the lower part of the outer surface of the housing is provided with a power jack for the thermal insulation heater. Although the existing heating tableware can continuously heat the food during the meal, there are two defects as follows: on the one hand, due to the use of AC power, the dining table must be equipped with AC power and power terminals, which causes inconvenience in use, and also It is easy to cause safety hazards such as electric wire leakage; on the other hand, the heating temperature is not easy to control, and the result of continuous heating will seriously affect the taste of food.

Utility model content

The technical problem to be solved by the utility model is to provide safe and convenient heat-preserving tableware.

The utility model adopts the following technical scheme: designing a heat-preserving tableware, comprising: a tableware body with good thermal conductivity and a heater installed on the tableware body, the heater includes a ceramic substrate and a heating element sprayed on the ceramic substrate The ceramic substrate has a heating film facing inward, and is sintered at a high temperature on the bottom of the tableware body, and the two electrodes of the heater are arranged on the bottom of the tableware body.

The heater is provided with a DC power supply by a DC power supply body, which is in the shape of a gasket and includes: a hollow insulating casing composed of an upper casing and a bottom cover plate, and the casing is provided with a sheet battery. The positive and negative terminals of the battery pack are connected to the upper surface of the upper casing through lead wires; the tableware body is aligned and placed on the DC power supply body, and the two electrodes are respectively connected to the The positive and negative terminals are in contact to form a heating circuit. Since the heat-preserving tableware of the present invention is powered by batteries, and the batteries are placed in the gasket-shaped DC power supply body, it overcomes the problem of needing to pull the AC power cord to heat the tableware in the prior art, and is convenient and safe to use. And because the heater adopting the heat-generating film is sintered on the bottom of the tableware body at high temperature, the heating is even, the electrical contact is good and waterproof.

The tableware body is an ordinary porcelain plate or bowl containing chromium oxide, and the bottom of the tableware is provided with a recess just to accommodate the heater. Adding the chromium oxide material can further improve the thermal conductivity of the tableware body.

The two electrodes of the heater are silver electrodes, the bottom ends of the two silver electrodes are inserted into the ceramic substrate and electrically connected with the heating film, and the outer ends of the two silver electrodes slightly protrude from the bottom surface of the tableware body. The silver electrode has good electrical conductivity, and the silver electrode protrudes from the bottom surface of the tableware body to ensure good contact between the heater and the DC power supply body.

The heating film of the heater is a semiconductor rare earth element thick film that is sprayed and sintered at a high temperature on the ceramic substrate. A layer of ceramic slurry is sprayed on the semiconductor rare earth element thick film to bond and sinter the bottom of the tableware body. into one.

The DC power supply body adopts a plurality of lithium batteries connected in parallel as a power source, and the upper casing adopts a rubber plate, and a patterned thin layer is pasted on the upper surface thereof. Since the DC power supply body will be placed on the dining table, the upper surface of the DC power supply body is pasted with a patterned thin layer to make the device of the utility model more beautiful and to improve the dining atmosphere.

The positive and negative terminals of the DC power supply body are conductive blocks with recesses inlaid on the upper surface of the upper casing, and the lower part is provided with wire lugs to facilitate the connection of the lead wires. The lead wires are connected to the battery through the shrapnel group connections.

A waterproof rubber ring is placed on the joint surface between the bottom cover plate and the upper casing to ensure that the DC power supply body is waterproof.

Compared with the prior art, the heat preservation meal of the utility model has the following beneficial effects: it is safe, easy to use, and evenly heated, so that the food contained in the tableware can be kept at a temperature of 50 to 60 degrees.

Description of drawings

Fig. 1 is the structural representation of tableware body of the present utility model;

Fig. 2 is a schematic structural diagram of the DC power supply body of the present invention.

Detailed ways

Embodiment of the utility model is described below in conjunction with accompanying drawing.

As shown in Figure 1, the heat preservation tableware of the present utility model uses the ordinary porcelain dish or porcelain bowl that adds dichromium trioxide material as tableware body 1, and heater 2 is to spray one deck semiconductor rare earth element thick film on ceramic substrate 21 as The heating film 22, the ceramic substrate 21 with the heating film facing inward, is sintered at the bottom of the tableware body 1 at high temperature, and the two electrodes 23 of the heater 2 are arranged on the bottom of the tableware body 1. The specific process is as follows:

A. The raw material of aluminum oxide (being commonly called as 99 porcelain) is mixed together with 15% or more of the porcelain plate material according to the requirement of good heat conduction, and is sintered and formed into the tableware body 1 of the present utility model according to the porcelain processing technology.

B. Making the raw material of the heating ceramic substrate—insert two silver electrodes 23 into the ceramic substrate 21 before the ceramic substrate 21 is sintered, level it, and sinter according to the ceramic sintering procedure.

C. Grinding the sintered ceramic substrate 21 to remove the ceramic raised particles on the surface, so that the plane of the silver electrode 23 is consistent and parallel to the ceramic sheet.

D. Spray and sinter the semiconductor rare earth heating paddle on the ground ceramic substrate 21 to form the heating film 22, and then turn on the electricity for inspection.

E. Spray a layer of ceramic slurry 24 on the thick film of semiconductor rare earth elements, that is, the heating film 22, and bond and sinter the bottom of the tableware body 1 to form a whole

The utility model adopts a DC power supply to provide power for the heater. Gaskets with beautiful patterns are placed on the dining tables of many families at present, and the utility model places 2 or more lithium batteries on such gaskets. Therefore, the DC power supply body 3 of the present utility model is in the shape of a gasket, and includes: a hollow insulating shell composed of an upper shell 31 (adopted with rubber plate) and a bottom cover plate 39, and the shell is provided with a sheet battery. A battery pack 310, the positive and negative terminals 32 of the battery pack 310 are connected to the upper surface of the upper casing 31 through lead wires 34; the tableware body 1 is placed on the DC power supply body 3 in an aligned position, The two electrodes 23 are respectively in contact with the positive and negative terminals 32 to form a heating circuit.

The manufacturing process of the DC power supply body 3 is as follows:

On the rubber plate 31 inlaid with the positive and negative terminals 32, the other side of the lead wire 34, the wire lug 33, and the lead wire 34 are welded tightly with the overelectric shrapnel 35, and then the art picture 36 is laid on the rubber plate 31 to form a power supply. supply system.

Cover the bottom cover plate 39 with feet on the rubber plate 31 and bond it with ultrasonic waves (it can be waterproof), put 2 pieces of lithium batteries 310 into the rubber plate 31 in parallel connection and put the waterproof rubber ring 38 into the battery The pressing plate 37) presses the battery tightly to ensure the tight contact between the battery and the shrapnel 35, and the power supply body is completed.

After the tableware body 1 is placed on the power supply board to align with the overvoltage point, an energized heating circuit will be formed, and the tableware body 1 will be maintained at 50°C to 60°C within 2-3 minutes for about 2 hours. temperature range.

When the electricity is used up, the DC power supply body 3 can be charged with a charger, and it is safe to use due to the use of the DC power supply.

Claims (8)

1. A heat-preserving tableware, comprising: a tableware body (1) with good thermal conductivity and a heater (2) installed on the tableware body (1), characterized in that: the heater (2) includes a ceramic substrate (21) and a heating film (22) sprayed on the ceramic substrate (21), the ceramic substrate (21) has a heating film facing inward, and is sintered at the bottom of the tableware body (1) at a high temperature , the two electrodes (23) of the heater (2) are arranged at the bottom of the tableware body (1). 2. The thermal insulation tableware according to claim 1, characterized in that it also includes a DC power supply body (3), and the DC power supply body (3) is in the shape of a gasket, comprising: an upper casing (31) and The bottom cover plate (39) constitutes a hollow insulating casing, and a battery pack (310) composed of sheet-type batteries is arranged in the housing, and the positive and negative terminals (32) of the battery pack (310) are connected through lead wires (34). to the upper surface of the upper casing (31); the tableware body (1) is aligned and placed on the DC power supply (3), and the two electrodes (23) are connected to the positive and negative electrodes respectively. The pole terminals (32) contact to form a heating circuit. 3. The heat-preserving tableware according to claim 1 or 2, characterized in that: the tableware body (1) is an ordinary porcelain plate or bowl containing chromium oxide, and the bottom of the tableware is provided with a (2) concave position. 4. The heat preservation tableware according to claim 1 or 2, characterized in that: the two electrodes (23) of the heater (2) are silver electrodes, and the bottom ends of the two silver electrodes (23) are inserted into the The ceramic substrate (21) is electrically connected to the heating film (22), and its outer end slightly protrudes from the bottom surface of the tableware body (1). 5. The heat-preserving tableware according to claim 1 or 2, characterized in that: the heat-generating film (22) of the heater (2) is made of semi-conductor rare earth elements that are sprayed and sintered at a high temperature on the ceramic substrate (21). The film is bonded and sintered together with the bottom of the tableware body (1) by spraying a layer of ceramic slurry (24) on the semiconductor rare earth element thick film. 6. The thermal insulation tableware according to claim 2, characterized in that: the DC power supply body (3) uses a plurality of lithium batteries connected in parallel as a power source, and the upper casing (31) uses a rubber plate, and its upper surface A patterned thin layer (36) is attached. 7. The heat preservation tableware according to claim 2, characterized in that: the positive and negative terminals (32) of the DC power supply body (3) are inlaid on the upper surface of the upper casing (31) with concave The lower part of the conductive block is provided with a wire lug (33) for conveniently connecting the lead wire (34), and the lead wire (34) is connected to the battery pack (310) through the elastic piece (35). 8. The heat-preserving tableware according to claim 2, characterized in that: a waterproof rubber ring (38) is placed on the joint surface of the bottom cover (39) and the upper casing (31).

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