Novel temperature display electric frying pan

Abstract

The utility model relates to the technical field of frying pans, and discloses a novel temperature display electric frying pan which comprises a pan body, a base exposure groove is formed in the connecting position of the side body and the bottom of the pan body, a protective armor is welded to the outer portion of the base exposure groove, and the protective armor extends upwards to the edge of the bottom end of a handle along the side body of the pan body. A temperature measuring line is connected into the protective armor in a penetrating mode, one end of the temperature measuring line is welded to the bottom face of the exposed groove of the base through a temperature measuring ball, a reinforcing heat insulation sheet is bonded to the outer portion of the temperature measuring ball, a reinforcing magnetic isolation sheet is tightly bonded to the outer portion of the reinforcing heat insulation sheet, and the other end of the temperature measuring line penetrates through the interior of the handle to be connected with a temperature display mechanism through a PCB terminal. The front end of the handle is connected with the wok body in a matched mode through a plurality of fastening nuts, the tail end of the handle is connected with the temperature display mechanism in a matched mode through a fastening screw, and the wok is reliable, durable, compact and simple in structure and more accurate in temperature measurement by adopting an industrial-grade temperature measurement alloy wire and a microminiaturization design.

Description

Technical Field

[0001] This utility model relates to the field of wok technology, specifically a novel temperature-display electric wok. Background Technology

[0002] Currently, most temperature-displaying wok sensors on the market use thermistors and armored thermocouples as temperature sensing elements. Thermistors have a lower temperature range, and the connection between miniaturized thermistors and their leads is weak, making them prone to damage. Their temperature measurement accuracy is generally low, and they are easily damaged by contamination from oil and water, leading to inaccurate temperature readings. Armored thermocouples, due to their armored component structure, require thermally conductive and insulating ceramic mineral powder inside, which slightly affects their temperature response speed, resulting in a certain degree of lag. Furthermore, due to their structure, armored thermocouples require compensating wires at the outer end of the component to connect the component to the circuit. This results in the miniaturized thermocouple component having very thin sensing alloy wires, making the connection between the alloy wires and the compensating wires very fragile. These wires are easily broken, causing damage and rendering the device inoperable, and they are also relatively expensive.

[0003] In the past, when implementing temperature-measuring wok technology, the sensor's structure and distance from the food inside the wok, along with interference from the heating source, resulted in significant errors between the measured temperature and the actual temperature of the food. The temperature difference was about 30 degrees Celsius for the outer embedded layer and about 20 degrees Celsius for the middle embedded layer. This error was particularly noticeable when heating water to boiling point. Therefore, it is crucial to provide a reliable, durable, and highly accurate temperature-measuring electric wok. Utility Model Content

[0004] The purpose of this invention is to provide a new type of electric frying pan with temperature display, which has high reliability and temperature measurement accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel temperature-display electric frying pan, comprising a pan body, wherein a base exposure groove is provided at the junction of the side and bottom of the pan body, a protective armor is welded to the outside of the base exposure groove, the protective armor extends upward along the side of the pan body to the bottom edge of the handle, a temperature measuring wire is threaded through the inside of the protective armor, a temperature measuring ball at one end of the temperature measuring wire is welded to the bottom surface of the base exposure groove, a reinforcing heat insulation sheet is bonded to the outside of the temperature measuring ball, a reinforcing magnetic shielding sheet is tightly bonded to the outside of the reinforcing heat insulation sheet, the other end of the temperature measuring wire passes through the inside of the handle and is connected to the temperature display mechanism through PCB terminals, the front end of the handle is connected to the pan body through multiple fastening nuts, and the rear end of the handle is connected to the temperature display mechanism through fastening screws.

[0006] Preferably, the substrate exposure groove passes sequentially through the second stainless steel layer and the aluminum layer of the pot body to reach the outer wall of the first stainless steel layer. The first stainless steel layer is tightly welded to the temperature measuring ball. Due to the welding process, the temperature measuring ball changes from a spherical shape to a disc shape, so as to facilitate the reaction of the temperature of the inner layer metal of the pot body with an ultra-high conductivity rate.

[0007] Preferably, the temperature measuring wire is made of a single small-diameter glass fiber insulated nickel-chromium or nickel-silicon temperature measuring alloy wire, and the end of the temperature measuring wire is a temperature measuring ball formed by welding nickel-chromium or nickel-silicon alloy wire. The temperature measuring wire made of alloy wire has the characteristics of small volume, small diameter, and high temperature resistance, which minimizes the additional volume increase of the pot body components caused by adding accessories.

[0008] Preferably, the protective armor is shaped with grooves and conforms to the arc of the pot body, which can provide a certain shielding effect against the medium-frequency magnetic field of the induction cooker.

[0009] Preferably, the front end of the handle has a cable tray and a through hole for installing the temperature measuring wire, a protective plate is installed at the cable tray position at the front end of the handle, an open hole for connecting the temperature display mechanism is provided at the rear end of the handle, and a reserved position for the battery compartment is provided in the middle of the handle. The lead wire of the battery compartment is connected to the computer board through a terminal to facilitate the protection of the temperature measuring wire and the connection with the temperature display mechanism.

[0010] Preferably, the temperature display mechanism includes a computer box, a button film is bonded to the rear of the top surface of the computer box, the computer box has an upper and lower split structure and is connected by fastening screws, a computer board is installed inside the computer box, and the computer board is equipped with a temperature display screen and buttons to facilitate real-time viewing of the internal temperature of the wok.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses CNC milling to create a base exposure groove at the bottom of the pot body, so that the inner layer material is completely exposed. The temperature measuring ball is then firmly fixed to the innermost layer material of the pot body by a micro spot welding machine. The inner layer material is only about 0.4mm away from the food inside the pot, avoiding the conduction error caused by embedding, pressing and other installation methods. Furthermore, due to the welding process, the temperature measuring ball changes from a spherical shape to a temperature measuring disc shape integrated with the inner pot, bringing the temperature measuring ball as close as possible to the food being cooked. This allows for a more accurate and ultra-high conduction rate in reflecting the temperature of the inner metal of the pot body, resulting in more precise temperature measurement.

[0013] 2. By setting up reinforced magnetic shielding sheets and reinforced heat insulation sheets, the temperature measuring ball is protected, which shields the shortcomings of the exposed temperature measuring wire sensor that is susceptible to thermal interference, and completely shields the self-heating error caused by the medium frequency eddy current of the exposed alloy wire sensor, thus eliminating the interference of the heating source as much as possible.

[0014] 3. The protective armor provides the first level of heat insulation and magnetic shielding for the temperature measuring wire through energy storage spot welding.

[0015] 4. All components and parts of the machine adopt a miniaturized design. Compared with ordinary frying pans, there are not many extra parts added. The structure is compact and simple, and it can be flexibly used for gas stoves and induction cooktops.

[0016] 5. The temperature display mechanism is installed at the end of the handle, keeping the computer board away from the heat source and the cleaning water source, thus ensuring long-term reliable operation.

[0017] In summary, a basic cookware component with minimal appearance changes is created by combining a temperature-sensing wire sensor, a pot body, protective armor components, and a temperature-sensing mechanism. This manufacturing process leverages all the advantages of thermocouple sensors in composite cookware products, completely avoiding their high cost and poor anti-interference capabilities. This structure, with minimal parts and easy manufacturing, achieves a perfect integration of an exposed alloy wire temperature-sensing bulb sensor with a three-layer steel composite cookware. It forms the basic component for cookware using open flames and induction cooktops. In actual experiments and cooking tests, no manual calibration of software or hardware is required, achieving an error of less than 5 degrees Celsius relative to the temperature of the food inside the pot—an error that fully meets the requirements for cooking assistance. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0020] Figure 2 This is a side sectional view of the present invention.

[0021] Figure 3 This is an enlarged view of the structure at point A of this utility model;

[0022] Figure 4 This is an enlarged view of the structure at point B of this utility model;

[0023] Figure 5 This is a partial disassembly diagram of the handle-body connection part of this utility model.

[0024] In the diagram: 1. Pot body, 101 first stainless steel layer, 102 aluminum layer, 103 second stainless steel layer, 104 base exposure groove, 2. Handle, 201 fastening nut, 3. Temperature measuring wire, 301 temperature measuring ball, 4. Reinforced heat insulation sheet, 5. Reinforced magnetic shielding sheet, 6. Protective armor, 7. Protective sheet, 8. Temperature display mechanism, 801. Computer board, 8011. Temperature display screen, 8012. Button, 802. Computer box, 8021. Button membrane, 803. Fastening screw, 9. Battery compartment. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Please see Figure 1-5 A novel temperature-display electric frying pan includes a pan body 1. A base exposure groove 104 is formed at the junction of the side and bottom of the pan body 1. A protective armor 6 is welded to the outside of the base exposure groove 104. The protective armor 6 extends upward along the side of the pan body 1 to the bottom edge of the handle 2. A temperature measuring wire 3 is threaded through the inside of the protective armor 6. A temperature measuring ball 301 at one end of the temperature measuring wire 3 is welded to the bottom surface of the base exposure groove 104. A reinforcing heat insulation sheet 4 is bonded to the outside of the temperature measuring ball 301. A reinforcing magnetic shielding sheet 5 is bonded tightly to the outside of the reinforcing heat insulation sheet 4. The other end of the temperature measuring wire 3 passes through the inside of the handle 2 and is connected to a temperature display mechanism 8 through a PCB terminal. The front end of the handle 2 is connected to the pan body 1 through multiple fastening nuts 201, and the rear end of the handle 2 is connected to the temperature display mechanism 8 through fastening screws 803.

[0027] Among them, such as Figure 4 The base exposure groove 104 passes through the second stainless steel layer 103 and the aluminum layer 102 of the pot body 1 in sequence to reach the outer wall of the first stainless steel layer 101. The first stainless steel layer 101 is tightly welded to the temperature measuring ball 301. Due to the welding process, the temperature measuring ball 301 changes from a spherical shape to a disc shape, so as to facilitate the reaction of the temperature of the inner metal of the pot body 1 with an ultra-high conductivity.

[0028] Among them, such as Figure 4 The temperature measuring wire 3 is made of a single small-diameter glass fiber insulated nickel-chromium and nickel-silicon temperature measuring alloy wire. The end of the temperature measuring wire 3 is a temperature measuring ball 301 formed by welding nickel-chromium and nickel-silicon alloy wires. The temperature measuring wire made of alloy wire has the characteristics of small size, small diameter and high temperature resistance, which minimizes the additional volume increase of the pot body 1 due to the addition of accessories.

[0029] Among them, such as Figure 5 The protective armor 6 is shaped with a groove and fits the curved body of the pot, which can provide a certain shielding effect against the medium frequency magnetic field of the induction cooker.

[0030] Among them, such as Figure 5 The handle 2 has a cable tray and a wire hole for installing the temperature measuring wire 3 at the front end. A protective plate 7 is installed at the cable tray position at the front end of the handle 2. An open hole for connecting the temperature display mechanism 8 is provided at the rear end of the handle 2. A reserved position for the battery compartment 9 is provided in the middle of the handle 2. The lead wire of the battery compartment 9 is connected to the computer board 801 through a terminal to protect the temperature measuring wire 3 and connect it to the temperature display mechanism 8.

[0031] Among them, such as Figure 3 The temperature display mechanism 8 includes a computer box 802. A button film 8021 is bonded to the rear of the top surface of the computer box 802. The computer box 802 has an upper and lower split structure and is connected by fastening screws 803. A computer board 801 is installed inside the computer box 802. The computer board 801 is equipped with a temperature display screen 8011 and buttons 8012 to facilitate real-time viewing of the internal temperature of the wok.

[0032] Working principle: When in use, first press the button 8012 on the upper computer board 801 to start the temperature display function. At this time, the temperature inside the pot body 1 is transmitted through the first stainless steel layer 101 of the pot body 1 to the temperature measuring ball 301 for sensing and reception, and then transmitted to the computer board 801 in the form of a signal through the temperature measuring line 301. The temperature change can be viewed in real time through the temperature display screen 8011 of the computer board 801. The computer board 801 can also realize functions such as sounding alarm when the preset temperature is reached, intelligent battery saving, sending a wireless signal to drive the peripheral device to receive the signal and cut off the power or gas source after receiving the signal, and adjustable preset temperature.

[0033] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A novel temperature-display electric frying pan, characterized in that: The container includes a pot body (1), with a base exposure groove (104) at the junction of the side and bottom of the pot body (1). A protective armor (6) is welded to the outside of the base exposure groove (104). The protective armor (6) extends upward along the side of the pot body (1) to the bottom edge of the handle (2). A temperature measuring wire (3) is threaded through the inside of the protective armor (6). A temperature measuring ball (301) at one end of the temperature measuring wire (3) is welded to the bottom surface of the base exposure groove (104). A reinforcing heat insulation sheet (4) is bonded to the outside of the temperature measuring ball (301). A reinforcing magnetic shielding sheet (5) is bonded tightly to the outside of the reinforcing heat insulation sheet (4). The other end of the temperature measuring wire (3) passes through the inside of the handle (2) and is connected to the temperature display mechanism (8) through a PCB terminal. The front end of the handle (2) is connected to the pot body (1) through multiple fastening nuts (201). The tail end of the handle (2) is connected to the temperature display mechanism (8) through a fastening screw (803).

2. The novel temperature-display electric frying pan as described in claim 1, characterized in that: The base exposure groove (104) passes through the second stainless steel layer (103) and the aluminum layer (102) of the pot body (1) in sequence to reach the outer wall of the first stainless steel layer (101), and the first stainless steel layer (101) is tightly welded to the temperature measuring ball (301).

3. The novel temperature-display electric frying pan as described in claim 1, characterized in that: The temperature measuring wire (3) is made of a small-diameter glass fiber insulated nickel-chromium and nickel-silicon temperature measuring alloy wire, and the end of the temperature measuring wire (3) is a temperature measuring ball (301) formed by welding nickel-chromium and nickel-silicon alloy wire.

4. The novel temperature-display electric frying pan as described in claim 1, characterized in that: The protective armor (6) is shaped with grooves and conforms to the arc shape of the pot body.

5. The novel temperature-display electric frying pan as described in claim 1, characterized in that: The handle (2) has a wiring groove and a wire hole for installing the temperature measuring wire (3) at the front end. A protective plate (7) is installed at the wiring groove at the front end of the handle (2). An open hole for connecting the temperature display mechanism (8) is provided at the rear end of the handle (2). A reserved position for the battery compartment (9) is provided in the middle of the handle (2). The lead wire of the battery compartment (9) is connected to the computer board (801) through a terminal.

6. The novel temperature-display electric frying pan as described in claim 1, characterized in that: The temperature display mechanism (8) includes a computer box (802), a button film (8021) is bonded to the rear of the top surface of the computer box (802), the computer box (802) is a split structure and is connected by fastening screws (803), a computer board (801) is installed inside the computer box (802), and the computer board (801) is provided with a temperature display screen (8011) and buttons (8012).

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