A pot with convenient temperature control

By embedding a heat-conducting part inside the cookware and connecting it to a temperature-sensing plate, the difference in the expansion coefficients of the two materials is utilized. The temperature-sensing plate bends differently at different temperatures, solving the problem that the cookware cannot accurately determine the oil temperature, and achieving convenient temperature control and accurate display.

CN224522856UActive Publication Date: 2026-07-21ZHEJIANG RONGSHU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG RONGSHU TECH CO LTD
Filing Date
2025-04-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing cookware cannot accurately determine oil temperature, and electronic thermometers are difficult to integrate and cannot withstand high temperatures and fumes for extended periods, leading to cooking failures or a decline in taste.

Method used

A heat-conducting element is embedded in the cookware and connected to a temperature-sensing plate. The temperature-sensing plate is composed of two layers of materials with different coefficients of expansion, which are formed by hot rolling. The temperature-sensing plate exhibits different degrees of curvature at different temperatures, and together with the heat-conducting element, it conducts heat from the cookware to indicate the temperature.

Benefits of technology

It achieves accurate temperature display inside the cookware, avoids the high maintenance costs and precision damage issues of electronic thermometers, and provides convenient temperature control.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of convenient temperature control's pot, heat conduction part is embedded in the pot body, heat conduction part extends to the pot handle, heat conduction part is connected with temperature sensing sheet, temperature sensing sheet receives the heat of heat conduction part conduction pot body, temperature sensing sheet presents different bending degree at different temperature.The utility model discloses a heat conduction part conduction heat in the pot body to temperature sensing sheet, temperature sensing sheet presents different bending degree at different temperature technical scheme solves the problem that electronic thermometer on market is difficult to integrate into pot body and cannot withstand high temperature and oil fume for a long time.
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Description

Technical Field

[0001] This utility model relates to a cookware, and more particularly to a cookware that is convenient for temperature control. Background Technology

[0002] When heating ordinary woks and frying pans, users cannot accurately judge whether the oil temperature has reached the ideal level, such as low-temperature frying of eggs, medium-temperature frying of meat, or high-temperature stir-frying. They can only rely on experience or trial and error, such as dropping in food and observing the reaction, which easily leads to insufficient or excessive temperature, resulting in poor taste or even cooking failure. Electronic thermometers on the market require battery power, have a complex structure, and are not easy to integrate into the cookware body; long-term exposure to high temperatures and oil fumes can easily damage them or affect their accuracy, resulting in high maintenance costs. Utility Model Content

[0003] A cookware design for convenient temperature control includes a heat-conducting part embedded within the pot body, extending into the handle. This part connects to a temperature-sensing element, which receives heat from the pot body and is conducted through the heat-conducting part. The temperature-sensing element exhibits different degrees of curvature at different temperatures. This invention solves the problems of existing electronic thermometers being difficult to integrate into cookware and unable to withstand high temperatures and oil fumes for extended periods.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A cookware with convenient temperature control has a heat-conducting part embedded in the pot body, which extends into the pot handle. The heat-conducting part is connected to a temperature-sensing plate, which receives the heat from the pot body conducted by the heat-conducting part. The temperature-sensing plate exhibits different curvatures at different temperatures.

[0006] In a further configuration, the heat-conducting part is embedded in the bottom of the pot and extends through the pot wall to the pot handle, with the other end of the heat-conducting part connected to the temperature-sensing plate.

[0007] Further, the temperature sensing element is composed of a first layer of temperature sensing element and a second layer of temperature sensing element through hot rolling composite.

[0008] Further, the first layer of the temperature sensing element is made of a material with a low coefficient of thermal expansion (coefficient of thermal expansion range 10~15×10). -6 / ℃).

[0009] Further, the second layer of the temperature-sensing element is made of a material with a high coefficient of thermal expansion (coefficient of expansion range 18~25×10). -6 / ℃).

[0010] This invention solves the problem that existing electronic thermometers are difficult to integrate into the pot and cannot withstand high temperatures and fumes for extended periods by using a heat-conducting part to conduct heat from the pot to a temperature-sensing element. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model in its first state;

[0012] Figure 2 This is a perspective view of the second state of this utility model;

[0013] Figure 3 This is a perspective view of the third state of this utility model;

[0014] Figure 4 This is a partial cross-sectional view of the present invention;

[0015] Figure 5 This is a schematic diagram of the heat-conducting part and temperature-sensing plate of this utility model in state one.

[0016] Figure 6 This is a schematic diagram of the heat-conducting part and temperature-sensing plate of this utility model in state two.

[0017] Figure 7 This is a schematic diagram of the heat-conducting part and temperature-sensing plate of this utility model in state three;

[0018] In the diagram: Pot body 1, pot bottom 11, pot wall 12, heat-conducting part 2.

[0019] Temperature sensing element 3, first layer temperature sensing element 31, second layer temperature sensing element 32, label cover 4. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views of the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] like Figures 1-7 As shown: The cookware is composed of a pot body 1. A heat-conducting section 2 is pre-processed and embedded inside the pot body. The heat-conducting section 2 starts at the bottom 11 and extends through the pot wall 12 to the inside of the handle. At the distal end of the heat-conducting section 2, it is firmly connected to a temperature-sensing plate 3 located inside the handle. The temperature-sensing plate 3 is composed of two composite materials: a first temperature-sensing plate 31 with a smaller coefficient of expansion and a second temperature-sensing plate 32 with a larger coefficient of expansion. These two materials are bonded together using a hot-rolling composite process.

[0025] Preferably, the heat-conducting part 2 is made of copper or copper alloy material with high thermal conductivity, and is machined into a slender rod or sheet. Its cross-sectional dimensions and length are determined according to the structure of the cookware and the heating area. One end of the heat-conducting part 2 is required to be machined into a shape that fits snugly against the bottom of the pot 11 to ensure sufficient thermal contact with the heating medium oil or liquid inside the pot; the other end should be machined into an adapter interface to facilitate installation and connection with the temperature sensing element 3.

[0026] Preferably, the heat-conducting part 2 is embedded in a pre-reserved groove inside the pre-processed pot body, extending from the bottom area of ​​the pot to the pot wall 12, and then into the cavity inside the pot handle. To ensure heat conduction, a good thermal contact area is left between the heat-conducting part and the inner wall of the pot, and they can be connected by welding to avoid displacement due to vibration or temperature fluctuations during use.

[0027] Preferably, the temperature sensing element 3 consists of a first temperature sensing element 31 and a second temperature sensing element 32, which are firmly bonded together by hot rolling to form an integral composite plate. The first temperature sensing element 31 is made of a material with a low coefficient of thermal expansion, such as carbon steel or 304 stainless steel, with a linear expansion coefficient ranging from 10 to 15 × 10⁻⁶. -6 Within / ℃; the second layer of temperature sensing element 32 is made of a material with a large coefficient of thermal expansion, such as brass or aluminum alloy, with a linear expansion coefficient ranging from 18 to 25 × 10⁻⁶. -6 / ℃.

[0028] Its working principle is as follows:

[0029] When the cookware is heated, the heat inside the cookware is quickly transferred to the temperature sensing element 3 through the heat-conducting part 2. Due to the different expansion rates of the two layers of materials, the temperature sensing element 3 will bend to a certain extent, and the degree of bending is proportional to the temperature.

[0030] The default setting is to pre-calibrate the indication range of the temperature sensor:

[0031] When the oil temperature in the pot is between 0 and 120°C, the temperature sensor does not bend, indicating "low temperature";

[0032] When the oil temperature in the pot is between 120 and 160°C, the temperature sensor bends at a moderate angle, indicating "medium temperature".

[0033] When the oil temperature exceeds 160°C, the temperature sensor bends significantly, indicating "high temperature".

[0034] The calibration of the temperature sensor's indication range can be adjusted according to the intended use of different cookware to better meet cooking requirements.

[0035] Preferably, the handle housing is made of high-temperature resistant, heat-insulating plastic or composite material, with an internal cavity to accommodate the extension of the heat-conducting part 2 and the temperature-sensing element 3 assembly. An observation window and a label cover 4 are designed on the outside, with temperature scale markings engraved on it, so as to intuitively see the degree of curvature of the temperature-sensing element and the corresponding temperature range.

[0036] like Figure 1 , Figure 5 State 1 shown: The pot body is in a low temperature heating state. The heat conduction part 2 transfers the lower temperature inside the pot to the temperature sensing plate 3. The temperature sensing plate is slightly bent and the pointer points to the "low temperature" area.

[0037] like Figure 2 , Figure 6 State 2: The pot body temperature reaches the medium temperature range. The temperature sensing element 3 bends at a medium angle due to the significant difference in expansion between the two metal layers, and the pointer points to the "medium temperature" area.

[0038] like Figure 3 , Figure 7 State 3: The pot body temperature rises further to a high temperature state, the temperature sensing element 3 bends significantly, and the pointer points to the "high temperature" area.

[0039] This invention solves the problem that electronic thermometers on the market are difficult to integrate into the pot body and cannot withstand high temperatures and oil fumes for a long time by conducting heat to the heat-conducting part 2 to the temperature-sensing plate 3, and the temperature-sensing plate 3 exhibits different degrees of curvature at different temperatures.

[0040] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no conflict in the mechanism, the features in the embodiments disclosed in the present invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cookware with convenient temperature control, characterized in that, A heat-conducting part (2) is embedded in the pot body (1). The heat-conducting part (2) extends into the pot handle. The heat-conducting part (2) is connected to the temperature-sensing plate (3). The temperature-sensing plate (3) receives the heat from the heat-conducting part (2) and conducts heat from the pot body (1). The temperature-sensing plate (3) exhibits different degrees of curvature at different temperatures. The temperature sensing sheet (3) is composed of a first layer temperature sensing sheet (31) and a second layer temperature sensing sheet (32) through hot rolling composite; The first layer of the temperature-sensing sheet (31) is made of a material with a small coefficient of thermal expansion, ranging from 10 to 15 × 10⁻⁶. -6 / °C; The second layer of the temperature-sensing sheet (32) is made of a material with a high coefficient of thermal expansion, ranging from 18 to 25 × 10⁻⁶. -6 / °C.

2. The cookware with convenient temperature control according to claim 1, characterized in that, The heat-conducting part (2) is embedded in the bottom (11) of the pot and extends through the pot wall (12) to the pot handle. The other end of the heat-conducting part (2) is connected to the temperature sensing plate (3).