Vacuum container for induction cooker

Abstract

The invention relates to a vacuum container for an induction cooker. A vacuum heat insulation structure, electromagnetic induction heating adaptation and a wireless temperature detection system are innovatively integrated. The temperature detection module embedded in the vacuum layer is in wireless communication with the induction cooker, so that accurate temperature control and dry burning prevention protection are realized; effective magnetic coupling is formed between the inner-layer magnetic conductive material and the induction cooker, the outer-layer insulating material ensures use safety, and the heat preservation performance is greatly improved through the vacuum heat insulation layer; according to the scheme, the technical problem that a traditional heat preservation container cannot be compatible with electromagnetic heating and intelligent temperature control is solved.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum insulation containers, and in particular to an electromagnetic induction heating type vacuum insulation container with a passive temperature detection function. Background Art

[0002] In the prior art, vacuum insulation containers generally have the following defects: 1) They cannot be directly used for induction cooker heating; 2) They lack real-time temperature detection function; 3) They lack anti-dry burning protection mechanism. Traditional solutions mostly use independent thermostats or active contact sensors, which lead to complex structures and affect insulation performance.

[0003] According to the technical solution disclosed in Chinese Patent Publication No.: CN108348086A, a vacuum container for an induction cooker is disclosed. This solution is to use a material that can be inductively heated by the induction cooker to make the inner side of the vacuum container, and use a material that cannot be inductively heated by the induction cooker to make the outer side of the vacuum container. This technical solution has the following defects: 1) No cover is set at the container opening, and the heat preservation effect is poor; 2) There is a lack of real-time temperature monitoring function; 3) There is a lack of anti-dry burning protection mechanism; Because the inner side of the heated container in this technical solution is far away from the temperature sensor sensing end of the induction cooker, the induction cooker cannot effectively detect the internal temperature of the container when heating, which can easily cause the container to dry burn and be damaged, so this invention has obvious limitations and a narrow scope of application. Summary of the invention

[0004] The present invention has made a breakthrough in integrating vacuum insulation technology, electromagnetic induction heating technology, and wireless temperature detection technology into a system. By optimizing the interlayer structure design, precise temperature control is achieved while ensuring electromagnetic heating efficiency. The innovative use of a vacuum layer embedded temperature sensing solution not only ensures detection accuracy and avoids damaging the container's sealing, but also enables the induction cooker to control the temperature of the contents of the vacuum container.

[0005] Specific implementation method: A vacuum container for an induction cooker according to an embodiment of the present invention for solving the above technical problem is characterized by comprising: An inner container component (1) for accommodating an object to be heated and made of a material that can be heated by electromagnetic induction; The outer container part (2) is made of a material that cannot be heated by electromagnetic induction; A vacuum heat insulation layer (3) is located between the inner container component and the outer container component; A temperature detection module (4) is located inside the vacuum insulation layer; A cover (5) is located at the open end of the container to isolate the contents of the container from direct contact with the atmosphere; The outer container part is larger than the inner container part so as to accommodate the inner container part, and the inner container part and the outer container part are connected as a whole at the container opening end.

[0006] The temperature detection module (4) of the vacuum container for an induction cooker is a passive RFID temperature sensor, which establishes wireless communication with an external heating device to form a closed-loop temperature control system.

[0007] The inner container part (1) of the vacuum container for the induction cooker is made of magnetically conductive stainless steel material with a thickness of 0.2-1.2 mm.

[0008] The vacuum insulation layer (3) of the vacuum container for an induction cooker has a vacuum degree of ≤10-0.1Pa, and an interlayer spacing of 2-15mm.

[0009] The outer container component (2) of the vacuum container for the induction cooker is made of non-magnetic conductive materials such as modified plastics, ceramics, and microcrystalline glass, and has a thickness of 0.3-5 mm.

[0010] The cover (5) of the vacuum container for an induction cooker can be made into a heat-insulating cover in the form of a thread, a buckle, a flip cover, etc. that matches the container opening, and is provided with a pressure relief or exhaust device.

[0011] Effects of the invention: The vacuum container for an induction cooker according to the embodiment of the present invention: breaks through the system integration of vacuum insulation technology, electromagnetic induction heating technology, and wireless temperature detection technology, optimizes the interlayer structure design, achieves precise temperature control while ensuring electromagnetic heating efficiency, and innovatively adopts a vacuum layer embedded temperature sensing solution, which not only ensures detection accuracy and avoids damaging the container's sealing, but also enables the induction cooker to control the temperature of the vacuum container when heating the contents. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 A vertical cross-sectional view of a vacuum container for an induction cooker according to an embodiment of the present invention; Figure 2 is a cross-sectional view of a vacuum container for an induction cooker according to an embodiment of the present invention; Figure 3 The present invention is a perspective view showing the relationship between a vacuum container for an induction cooker and the induction cooker.

[0013] Reference numerals: 1-inner container part, 2-outer container part, 3-vacuum insulation layer, 4-temperature detection module, 5-cover, 6-container handle, 7-induction cooker, 8-coil, 9-magnetic flux lines, 10-eddy current, 11-temperature detection module coil.

[0014] Specific implementation: The embodiments of the present invention are described below with reference to the accompanying drawings.

[0015] like Figures 1 to 3 As shown, a vacuum container for an induction cooker according to an embodiment of the present invention comprises an inner container component (1), wherein at least one end of the inner container component (1) is open and can be made into a shape such as a cup, a bowl, a frying pan, etc. that can hold heated objects.

[0016] 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.

[0017] Furthermore, the inner container part (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 stainless steel, iron (Fe)-based materials, iron (Fe)-based alloys, magnetic bodies, or ferromagnetic ceramics. Secondly, the inner container part (1) can also be made of a non-magnetic material that cannot be heated by electromagnetic induction, and at the same time, a magnetic material is coated or electroplated on the end that is heated by electromagnetic induction, so as to achieve electromagnetic heatability of the inner container part (1).

[0018] Furthermore, a vacuum container for an induction cooker according to an embodiment of the present invention comprises an outer container part (2), which is made of non-magnetic conductive materials such as modified plastics, ceramics, and microcrystalline glass, and has a thickness of 0.3-5 mm. The outer container part (2) is larger than the inner container part (1) so as to accommodate the inner container part (1). The outer container part (2) and the inner container part (1) are connected as a whole at the container opening end.

[0019] Furthermore, a vacuum container for an induction cooker according to an embodiment of the present invention comprises a vacuum insulation layer (3), wherein the vacuum degree of the vacuum insulation layer (3) is ≤10-0.1Pa, and can be heat-insulated by vacuum, and the interlayer spacing is 2-15mm.

[0020] In addition, the vacuum insulation layer (3) can be a gap space formed by the inner container part (1) and the outer container part (2), and the vacuum insulation layer (3) can be in a sealed state in which the internal air is extracted from the outside. The vacuum insulation layer (3) can be built-in with a getter (not shown) that absorbs residual gas in order to form a high vacuum.

[0021] In order to isolate heat radiation, the inner surface or outer surface of the inner container part (1) may be plated with copper or silver.

[0022] Furthermore, a temperature detection module (4) of a vacuum container for an induction cooker according to an embodiment of the present invention is a passive RFID temperature sensor, which is composed of a temperature sensing end, an RFID chip and an antenna; the temperature sensing end of the temperature detection module (4) is arranged on the outer surface of the inner container component (1) at one end close to the induction cooker (7), and detects temperature using the thermocouple principle, and transmits temperature information of the object to be measured to the RFID chip; the RFID chip receives and sends radio frequency signals via the antenna (11), thereby realizing wireless communication between the temperature detection module (4) and the external induction cooker (7), thereby forming a closed-loop temperature control system.

[0023] Furthermore, a vacuum container for an induction cooker according to an embodiment of the present invention comprises a covering (5), wherein the covering (5) can be made into a heat-insulating cover in the form of a thread, a buckle, a flip cover, etc. that matches the container opening, and is provided with a pressure relief or exhaust device.

[0024] In order to facilitate the taking and use of a vacuum container for an induction cooker according to an embodiment of the present invention, a container handle (6) may be provided on the surface of the outer container component (2), and the container handle (6) may be made into a size and shape that is easy to grasp.

[0025] Here, in order to realize the overheating protection and heating temperature control functions of the vacuum container for an induction cooker according to an embodiment of the present invention, an RFID reader / writer can be installed in the induction cooker (7) and connected to the controller of the induction cooker (7) (not shown).

[0026] In a preferred embodiment of a vacuum container for an induction cooker according to an embodiment of the present invention, the inner container part (1) is made of stainless steel (preferably 0.35 mm thick) that can be heated by electromagnetic induction; the vacuum insulation layer (3) has a spacing of 2-15 mm (vacuum degree ≤ 10-0.1 Pa); the outer container part (2) is made of a non-magnetic material that cannot be heated by electromagnetic induction; the temperature detection module (4) is a UHF RFID temperature tag (operating frequency 860-960 MHz) and is attached to the outer surface of the inner container; the covering (5) is made of a heat-insulating cover that matches the container opening and is provided with a pressure relief or exhaust device; a dedicated reader / writer is configured at the receiving end of the induction cooker to establish a two-way communication link, and the control accuracy can reach ±1°C.

[0027] Those skilled in the art should understand that the above embodiments are only exemplary descriptions. Without departing from the concept of the present invention, material selection, structural parameters, communication methods, etc. may be appropriately adjusted. Therefore, the scope of protection of the patent of the present invention shall be based on the attached claims.

Claims

1. A vacuum container for an induction cooker, characterized in that: include: An inner container component (1) for accommodating an object to be heated and made of a material that can be heated by electromagnetic induction; The outer container part (2) is made of a material that cannot be heated by electromagnetic induction; A vacuum heat insulation layer (3) is located between the inner container component and the outer container component; A temperature detection module (4) is located inside the vacuum insulation layer; A cover (5) is located at the open end of the container to isolate the contents of the container from direct contact with the atmosphere; The outer container part is larger than the inner container part so as to accommodate the inner container part, and the inner container part and the outer container part are connected as a whole at the container opening end.

2. The vacuum container for an induction cooker according to claim 1, characterized in that The temperature detection module (4) is a passive RFID temperature sensor, which establishes wireless communication with an external heating device to form a closed-loop temperature control system.

3. The vacuum container for an induction cooker according to claim 1, characterized in that The inner container component (1) is made of magnetically conductive stainless steel and has a thickness of 0.2-1.2 mm.

4. The vacuum container for an induction cooker according to claim 1, characterized in that The vacuum degree of the vacuum insulation layer (3) is ≤10-0.1Pa, and the interlayer spacing is 2-15mm.

5. The vacuum container for an induction cooker according to claim 1, characterized in that The outer container component (2) is made of non-magnetic materials such as modified plastics, ceramics, and microcrystalline glass, and has a thickness of 0.3-5 mm.

6. The vacuum container for an induction cooker according to claim 1, characterized in that The covering (5) can be made into a heat-insulating cover in the form of a thread, a buckle, a flip cover, etc. that matches the container opening, and is provided with a pressure relief or exhaust device.

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