Electromagnetic heating vacuum insulation container

Abstract

The invention discloses an electromagnetic heating vacuum insulation container, which is an improvement on the vacuum insulation container and solves the technical difficulties that a double-layer vacuum insulation container cannot perform electromagnetic heating on the inside and is difficult to achieve both portability and firmness, and is provided with a temperature sensing device based on RFID radio frequency identification technology, so that the vacuum insulation container has the characteristics of electromagnetic heating, scald prevention, portability, firmness, energy saving, and dry burning prevention, and can realize temperature control of the electromagnetic heater for heating or insulation of the inside of the vacuum insulation container, and has many advantages.

Description

Technical Field

[0001] The invention relates to the field of vacuum insulation containers, and in particular to a vacuum insulation container that can be used for electromagnetic induction heating and has a temperature sensing function. Background Art

[0002] Most of the existing vacuum insulation containers on the market do not have electromagnetic induction heating function or temperature sensing function, and their usage scenarios are relatively single; some insulation containers and pots with electromagnetic induction heating function need to have openings at the bottom or leave a non-vacuum heating surface or a port for installing a temperature sensor. Such a structure will cause a lot of heat loss during the heating process, resulting in a slow heating speed and high energy consumption. After the heating stops, the temperature drops quickly, and frequent heating operations may be required, which is not very convenient, such as some kettles with insulation function.

[0003] The technical solution disclosed in Chinese patent publication number: CN204091706U discloses an electromagnetic heating vacuum insulation container. This solution is to use a non-magnetic material that cannot be heated by electromagnetic induction to make the main body of the double-layer vacuum insulation container, and place a magnetic heating plate that can be heated by electromagnetic induction in the inner layer of the main body. This technical solution has the following problems: the non-magnetic material that cannot be heated by electromagnetic induction and does not block electromagnetic induction heating is usually a non-metallic material, and non-metallic materials such as glass, ceramics and other materials are fragile, bulky and have safety hazards, and are not suitable for use as the main body of the container; the non-magnetic material used to make the container also includes plastics. This type of material is used to make the main body of the vacuum insulation container, which is easily deformed and concave due to insufficient strength and cannot support the atmospheric pressure outside the vacuum layer, and loses its original function; and because the magnetic heating plate of this technical solution is far away from the temperature sensor sensing end of the induction cooker, it is easy to cause the container to burn dry and cause a fire hazard, and it is difficult to pass the national 3C certification, so this invention has obvious limitations and a narrow scope of application. Summary of the invention

[0004] Technical issues to be solved:

[0005] The purpose of the present invention is to provide an electromagnetic heating vacuum insulation container in view of the shortcomings of the prior art. By combining different materials, the area of ​​non-magnetic conductive materials (ceramics) is minimized and the area of ​​magnetic conductive materials (metals) is maximized, so that electromagnetic induction heating can directly act on the inside of the container through the outside of the container, while taking into account the overall firmness and lightness; by arranging an RFID temperature sensor inside the container and using it in conjunction with an external RFID reader, the temperature inside the vacuum insulation container can be detected in real time during heating by an electromagnetic cooker to prevent dry burning; the electromagnetic heating vacuum insulation container takes into account the energy saving and high efficiency of heating, and is heat-insulating, heat-insulating, and scalding-proof, and has good safety; it also has the function of real-time temperature detection, so that the temperature control of the heating inside the double-layer vacuum insulation container by the electromagnetic cooker becomes a feasible function.

[0006] Means of solving technical problems:

[0007] An electromagnetic heating vacuum insulation container according to an embodiment of the present invention for solving the above technical problem is characterized by comprising:

[0008] The inner container member contains the heated object and is made of a magnetic conductive material;

[0009] An outer container component is partially or entirely made of a non-magnetic material, the outer container component is larger than the inner container component to accommodate the inner container component, and the inner container component is bonded or welded to the outer container component as a whole;

[0010] a radio frequency identification module, located between the inner container member and the outer container member;

[0011] a vacuum layer located between the inner container member and the outer container member;

[0012] The non-magnetic conductive material is made of the bottom of the outer container component and above the bottom, and the covering height is greater than 1 cm.

[0013] Preferably, the radio frequency identification module is an RFID passive wireless temperature sensor, which is composed of at least the following three parts:

[0014] Temperature sensor: used to sense the temperature of the object being measured, with its sensing end fixed in the vacuum layer close to the inner container member;

[0015] RFID chip: used for storing and transmitting temperature data, which is fixed in the vacuum layer and connected to the temperature sensor;

[0016] Antenna: used for receiving and sending radio frequency signals, fixed to the outer container member and connected to the RFID chip;

[0017] Preferably, the non-magnetic conductive material is made of the bottom of the outer container member and above the bottom, and has a covering height of 5 cm.

[0018] Preferably, the non-magnetic conductive material is ceramic or glass-ceramic, and the magnetic conductive material is stainless steel, iron-based material, or iron-based alloy.

[0019] Effects of the invention:

[0020] According to an embodiment of the present invention, an electromagnetic heating vacuum insulation container: through the combination of different materials, the area of ​​non-magnetic conductive materials (ceramics) is minimized and the area of ​​magnetic conductive materials (metals) is maximized, so that electromagnetic induction heating can directly act on the inside of the container through the outside of the container, and the overall firmness and lightness are taken into account; by arranging an RFID temperature sensor inside the container and using it in conjunction with an external RFID reader, the temperature inside the vacuum insulation container can be detected in real time during heating by an electromagnetic cooker to prevent dry burning; the electromagnetic heating vacuum insulation container takes into account the energy saving and high efficiency of heating, and is heat-insulating, heat-insulating, and scalding-proof, and has good safety; it also has the function of real-time temperature detection, so that the electromagnetic cooker can realize the function of controlling the heating temperature inside the double-layer vacuum insulation container. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of an electromagnetic heating vacuum insulation container according to an embodiment of the present invention.

[0022] Figure 2 It is a vertical cross-sectional view of an electromagnetic heating vacuum insulation container according to an embodiment of the present invention.

[0023] Figure 3 It is a cross-sectional view of an electromagnetic heating vacuum insulation container according to an embodiment of the present invention.

[0024] Explanation of symbols

[0025] 1-inner container component, 2-outer container component / magnetic conductive material, 3-vacuum layer, 4-outer container component / non-magnetic conductive material, 5-temperature sensor sensing end, 6-RFID chip, 7-antenna. DETAILED DESCRIPTION

[0026] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0027] like Figures 1 to 3 As shown, an electromagnetic heating vacuum insulation container according to an embodiment of the present invention comprises an inner container component (1), and the inner container component (1) can be made into a shape such as a cup, a bowl, a frying pan, etc. that can hold heated objects.

[0028] Here, the object to be heated may be a fluid to be heated, food to be cooked, or a chemical substance to be heated, and the type of the object to be heated is not limited.

[0029] Furthermore, the inner container member (1) can be made entirely of a magnetic material that can be heated by electromagnetic induction. Here, the magnetic material that can be heated by electromagnetic induction can be an iron (Fe) material, an iron (Fe) alloy, a magnetic body, or a ferromagnetic ceramic.

[0030] Furthermore, the electromagnetic heating vacuum insulation container of an embodiment of the present invention includes an outer container component (2), which is made of stainless steel, iron (Fe)-based materials, or iron (Fe)-based alloys, and is bonded or welded to the inner container component (1) as a whole.

[0031] Furthermore, the electromagnetic heating vacuum insulation container of an embodiment of the present invention includes an outer container component (4), which is made of a non-magnetic material that does not block electromagnetic induction heating, such as metal that does not belong to the iron (Fe) system, synthetic resin, glass or ceramic, and is bonded or welded to the outer container component (2) as a whole.

[0032] Furthermore, the electromagnetic heating vacuum insulation container of the embodiment of the present invention includes a radio frequency identification module, which is an RFID passive wireless temperature sensor. The temperature sensing end (5) of the RFID passive wireless temperature sensor detects the temperature using the thermocouple principle and transmits the temperature information of the object to be measured to the RFID chip (6). The RFID chip (6) receives and sends radio frequency signals through the antenna (7) to realize the communication between the RFID chip (6) and an external RFID reader (not shown); at the same time, the antenna (7) can convert the radio frequency signal of a specific frequency into electrical energy for use by the RFID passive wireless temperature sensor.

[0033] Here, in order to realize the thermal protection and temperature control functions of the electromagnetic heating vacuum insulation container of the embodiment of the present invention, an RFID reader can be connected and installed inside the external heater (induction cooker) to realize the thermal protection and temperature control functions of the heater (induction cooker).

[0034] Furthermore, the electromagnetic heating vacuum insulation container of the embodiment of the present invention comprises a vacuum layer (3), and the vacuum layer (3) can be heat-insulated by vacuum.

[0035] In addition, the vacuum layer (3) can be a gap space formed by the inner container member (1), the outer container member (2) and the outer container member (4), and the vacuum layer (3) can be a sealed form in which the internal air is extracted from the outside. The vacuum layer (3) can have a getter (not shown) that absorbs residual gas in order to form a high vacuum.

[0036] Here, the vacuum layer (3) is heat-insulated by blocking heat convection due to vacuum, thereby being able to provide heat insulation between the inner container member (1), the outer container member (2), and the outer container member (4).

[0037] Furthermore, in order to isolate heat radiation, the inner surface or outer surface of the inner container member (1) may be plated with copper or silver.

[0038] The inner container component (1) of the electromagnetic heating vacuum insulation container of the embodiment of the present invention is made of a magnetic conductive material that is easily heated by electromagnetic induction, and can be applied to a variety of different electromagnetic cookers. The outer container component (2) is also made of a magnetic conductive material, and the overall structure is light and strong. The vacuum layer (3) is also used to achieve vacuum insulation. The outer container component (4) is made of a non-magnetic conductive material that does not block electromagnetic heating, so that the electromagnetic cooker can directly heat the inner container component (1) through the outer container component (4) and the vacuum layer (3). By arranging RFID passive wireless temperature sensors (5), (6), and (7) and using them in conjunction with an external RFID reader (not shown), the electromagnetic cooker can detect the temperature in the electromagnetic heating vacuum insulation container in real time during heating to prevent dry burning. The electromagnetic heating vacuum insulation container takes into account the energy saving and high efficiency of heating, and is heat-insulating, heat-insulating, and scalding-proof, and has good safety. At the same time, it also has the function of real-time temperature detection, so that the electromagnetic cooker can realize the function of controlling the heating temperature inside the double-layer vacuum insulation container.

[0039] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An electromagnetic heating vacuum insulation container, characterized in that: include: The inner container member contains the heated object and is made of a magnetic conductive material; An outer container component is partially or entirely made of a non-magnetic material, the outer container component is larger than the inner container component to accommodate the inner container component, and the inner container component is bonded or welded to the outer container component as a whole; a radio frequency identification module, located between the inner container member and the outer container member; a vacuum layer located between the inner container member and the outer container member; The non-magnetic conductive material is made of the bottom of the outer container component and above the bottom, and the covering height is greater than 1 cm.

2. The electromagnetic heating vacuum insulation container according to claim 1, characterized in that: The radio frequency identification module is an RFID passive wireless temperature sensor, which is composed of at least the following three parts: Temperature sensor: used to sense the temperature of the object being measured, with its sensing end fixed in the vacuum layer close to the inner container member; RFID chip: used for storing and transmitting temperature data, which is fixed in the vacuum layer and connected to the temperature sensor; Antenna: used for receiving and sending radio frequency signals, which is fixed to the outer container member and connected to the RFID chip.

3. The electromagnetic heating vacuum insulation container according to claim 1, characterized in that: The non-magnetic conductive material is made of the bottom of the outer container component and above the bottom, and has a covering height of 5 cm.

4. The electromagnetic heating vacuum insulation container according to claim 1, characterized in that: The non-magnetic conductive material is ceramic or glass-ceramic, and the magnetic conductive material is stainless steel, iron-based material, or iron-based alloy.

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