Temperature measuring assembly for detecting temperature of wok and wok device

Abstract

The utility model discloses a temperature measuring assembly for detecting the temperature of a wok and a wok device, the temperature measuring assembly comprises a temperature sensor attached to the outer wall of the wok, the temperature sensor is sealed and packaged in a copper sleeve, the copper sleeve is filled with heat-conducting silicone grease, the top opening of the copper sleeve is sealed with temperature-resistant resin, and the temperature-resistant resin is filled with heat-conducting silicone grease. The portion, opposite to a temperature measuring probe of the temperature sensor, of the copper sleeve protrudes towards the frying pan, the outer surface of the protruding portion of the copper sleeve is flat, and the protruding portion of the copper sleeve is tightly attached to the frying pan. The wok device comprises a temperature measuring assembly, a shell, a heating body, a wok and a connecting piece coaxial with the wok. According to the utility model, accurate temperature measurement of the temperature sensor can be ensured, and oil stain can be prevented from entering the copper sleeve to corrode the temperature measurement probe of the temperature sensor, so that the service life of the temperature sensor is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of temperature detection technology, and in particular to a temperature measuring component and a wok device for detecting the temperature of a wok. Background Technology

[0002] With the continuous development of technology, the emergence of intelligent cooking machines allows people to enjoy delicious food without having to cook themselves. However, precise temperature control of the wok is crucial for intelligent cooking machines during the cooking process. Therefore, on December 29, 2021, the applicant filed a utility model patent application with the State Intellectual Property Office, application number 202123353255.0, entitled "Encapsulation Structure of Temperature Sensor, Temperature Measuring Device Including the Structure, and Wok Device." The patent discloses a technical solution whereby "the encapsulation structure includes a temperature sensor probe, which is mounted on a back substrate made of heat-insulating material via an elastic element. An outer cover made of heat-conducting material is fastened to the temperature sensor probe. The outer cover fixes the temperature sensor probe and the elastic element to the back substrate via a male-female snap-fit ​​structure. Under the elastic action of the elastic element, the temperature sensor probe is tightly fitted to the bottom inner surface of the outer cover. The bottom outer surface of the outer cover can contact the surface of the object to be measured, thereby directly and quickly transferring the temperature of the object to the temperature sensor probe, resulting in efficient response and high temperature measurement accuracy."

[0003] During use, the applicant discovered the following shortcomings in the above technical solution: the seal between the outer cover and the back substrate is poor, and oil stains can easily enter the outer cover, causing corrosion of the temperature probe and thus affecting the temperature measurement accuracy of the temperature sensor. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a temperature measuring component and a wok device for detecting the temperature of a wok that can effectively prevent the temperature sensor from being corroded.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: A temperature measuring component for detecting the temperature of a wok includes a temperature sensor attached to the outer wall of the wok, the temperature sensor being hermetically encapsulated in a copper sleeve, the copper sleeve being filled with thermally conductive silicone grease, the top end of the copper sleeve being open and encapsulated with heat-resistant resin, the portion of the copper sleeve opposite to the temperature probe of the temperature sensor protruding towards the wok, the outer surface of the protruding portion of the copper sleeve being flat, and the protruding portion of the copper sleeve being in close contact with the wok.

[0006] Preferably, the temperature measuring component for detecting the temperature of the wok further includes a mica plate, and the copper sleeve encapsulating the temperature sensor is fixed to the mica plate by fasteners.

[0007] Preferably, the temperature measuring component for detecting the temperature of the wok further includes an elastic arc-shaped plate, the mica plate being fixed to one end of the arc-shaped plate, and the other end of the arc-shaped plate being fixed to the connecting part of the wok.

[0008] Preferably, the copper sleeve is made of pure copper.

[0009] Preferably, the copper sleeve has a length of 25mm-30mm.

[0010] Preferably, the temperature sensor is a platinum resistance temperature sensor, which includes a temperature probe and a signal line, and the signal line is a Teflon metal shielded wire.

[0011] This utility model also provides a wok device, including the temperature measuring component for detecting the temperature of the wok, and further including a shell, a heating element, a wok, and a connector coaxially arranged with the wok.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The temperature sensor is sealed within a copper sleeve, with the raised portion of the sleeve having a smooth outer surface that fits snugly against the wok. This design not only ensures accurate temperature measurement but also prevents oil from entering the copper sleeve and corroding the temperature sensor's probe, thus significantly extending the sensor's lifespan. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the packaging of the temperature sensor and the copper sleeve.

[0015] Figure 2 This is a schematic diagram of the assembly of the copper sleeve and the mica plate.

[0016] Figure 3 This is a cross-sectional view of the copper sleeve and mica plate.

[0017] Figure 4 This is a 3D view of the temperature sensing component;

[0018] Figure 5 This is a schematic cross-sectional view of the temperature measuring component assembled with the wok;

[0019] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0020] In the picture:

[0021] 10. Temperature sensor; 101. Temperature probe; 102. Signal line; 11. Copper sleeve; 111. Protrusion; 12. Thermal grease; 13. Heat-resistant resin; 14. Mica board; 15. Fastener; 16. Curved plate; 17. Housing; 18. Heating element; 19. Wok; 20. Connector. Detailed Implementation

[0022] like Figures 1 to 5 As shown, this utility model provides a temperature measuring component (hereinafter referred to as the temperature measuring component) for detecting the temperature of a wok. The temperature measuring component includes a temperature sensor 10, a copper sleeve 11, a mica plate 14, and an arc plate 16.

[0023] 1. Temperature sensor 10

[0024] Temperature sensor 10 is attached to the outer wall of wok 19. Temperature sensor 10 can be one of platinum resistance temperature sensor, thermocouple sensor, thermistor sensor and integrated (IC) temperature sensor. In this utility model, a PT100 Class A 2-wire platinum resistance temperature sensor with a temperature resistance of 250℃ is preferred. The platinum resistance temperature sensor includes a temperature probe 101 and a signal line 102. The signal line 102 is a Teflon metal shielded wire.

[0025] II. Copper sleeve 11

[0026] A temperature sensor 10 is sealed inside a copper sleeve 11, and the copper sleeve 11 is filled with thermally conductive silicone grease 12, which can be used normally in an operating environment from -20℃ to 300℃. The top of the copper sleeve 11 is encapsulated with a heat-resistant resin 13, which has a temperature resistance range of -20℃ to 250℃. Since copper has good electrical conductivity, thermal conductivity, and ductility, the copper sleeve 11 of this invention is preferably made of copper, with a wall thickness of 0.3mm and a length of 25mm-30mm. The copper sleeve 11 with a preferred length of 28mm is preferred. The portion of the copper sleeve 11 opposite to the temperature probe 101 protrudes towards the wok 19. The surface of the protruding portion 111 of the copper sleeve 11 is flat, and the overall shape is arc-shaped or trapezoidal. The protruding portion 111 of the copper sleeve 11 is in close contact with the wok 19.

[0027] III. Mica Plate 14

[0028] The mica plate 14 has a cross-shaped structure. The copper sleeve 11 encapsulating the temperature sensor 10 is fixed to the mica plate 14 by fasteners 15. Specifically, the fasteners 15 preferably use two aluminum buckles. The mica plate 14 is provided with a groove for placing the aluminum buckles. Under the combined action of the aluminum buckles and the groove, the copper sleeve 11 is prevented from falling off the mica plate 14.

[0029] IV. Curved Plate 16

[0030] The arc-shaped plate 16 is used to mount the mica plate 14 and to fit the copper sleeve 11 against the outer wall of the wok 19. If the cooking machine heats the wok 19 by electromagnetic heating, the back of the mica plate 14 is fixed to the upper part of the inner side of the arc-shaped plate 16. The arc-shaped plate 16 is an arc-shaped strip structure extending from bottom to top and has elastic properties. It is fixed outside the wok 19 and rotates synchronously with the wok 19. A groove for accommodating the signal line 102 is opened in the middle of the arc-shaped plate 16.

[0031] On a plane perpendicular to the axes of the arc plate 16 and the wok 19, the center of curvature of the arc plate 16 and the center of curvature of the outer wall of the wok 19 near the arc plate 16 are on the same side, and the curvature of the arc plate 16 is greater than the curvature of the outer wall of the wok 19.

[0032] The curved plate 16 is made of copper, which is low in cost and non-magnetic, so it will not be heated and will conduct the heat generated by itself to the mica plate 14.

[0033] V. Operating Principle of Temperature Measurement Components

[0034] To prevent oil from entering the copper sleeve 11 and corroding the temperature probe 101 of the temperature sensor 10, thus extending the service life of the temperature sensor 10, the temperature sensor 10 is sealed inside the copper sleeve 11. The copper sleeve 11 is filled with thermally conductive silicone grease 12, and the top of the copper sleeve 11 is encapsulated with heat-resistant resin 13. The outer surface of the protrusion 111 of the copper sleeve 11 is flat and tightly adheres to the wok 19. To enable real-time temperature detection of the wok 19 and synchronized rotation between the temperature sensor 10 and the wok 19, the copper sleeve 11 containing the temperature sensor 10 is fixed to the mica plate 14 using fasteners 15. The mica plate 14 is fixed to one end of the arc-shaped plate 16, and the other end of the arc-shaped plate 16 is fixed to the connector 20 of the wok 19.

[0035] As shown in Figure 5, this utility model also provides a wok device, including a temperature measuring component, a housing 17, a heating element 18, a wok 19, and a connector 20 coaxially arranged with the wok.

[0036] A heating element 18 and a housing 17 are arranged coaxially around the wok 19. The heating element 18 is used to provide heat to the wok 19 and has a cavity for accommodating the wok 19. The heating element 18 is housed in the housing 17 and fixedly connected to the housing 17. The housing 17 provides waterproof protection for the heating element 18 and the wok 19.

[0037] A connector 20 is provided at the bottom of the wok 19 and is coaxially arranged therewith. The wok 19 and the connector 20 are detachably connected. The arc plate 16 in the temperature measuring device is installed in the cavity of the heating body 18 by fixing its lower part to the outer wall of the connector 20. When the wok 19 is put into the cavity of the heating body 18, the outer cover of the temperature measuring device is always in close contact with the outer wall of the wok 19 to achieve contact temperature measurement.

[0038] Driven by the drive unit (not shown in the figure) in the cooking machine, the connector 20 rotates and drives the wok 19 and the arc plate 16 carrying the temperature sensor 10 to rotate synchronously.

[0039] The wok device of this utility model, by incorporating the temperature measuring component, has the following beneficial effects:

[0040] 1) The temperature probe 101 collects accurate pot temperature information and transmits the information to the main control circuit of the cooking machine. The main control circuit adjusts the heating current of the heating element 18 to the wok 19 accordingly, so as to achieve precise temperature control of the wok 19 and cook high-quality dishes.

[0041] 2) Because the arc plate 16 rotates synchronously with the wok 19, it prevents wear caused by relative rotation when the copper sleeve 11 contacts the outer wall of the wok 19, thus extending the service life and ensuring temperature measurement stability.

[0042] 3) When the wok 19 needs to be replaced or cleaned separately, there is no need to disassemble or install the signal line 102 of the temperature sensor 10 first (this operation involves disassembling and installing other parts in the cooking machine, which affects the stability of other parts). The wok 19 can be easily and quickly removed from or installed in the heating body 18.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A temperature measuring assembly for detecting the temperature of a wok, comprising a temperature sensor attached to the outer wall of the wok, characterized in that, The temperature sensor is tightly packaged in a copper sleeve, the copper sleeve is filled with heat-conducting silicone grease, the top end of the copper sleeve is open and packaged with temperature-resistant resin, the part of the copper sleeve opposite to the temperature measuring probe of the temperature sensor is protruded towards the frying pan, the outer surface of the protruded part of the copper sleeve is smooth, and the protruded part of the copper sleeve is tightly attached to the frying pan.

2. The temperature measuring assembly for detecting the temperature of a frying pan according to claim 1, wherein, The copper sleeve packaged with the temperature sensor is further fixed on the mica plate by fasteners.

3. The temperature measuring assembly for detecting the temperature of a frying pan according to claim 2, wherein, The mica plate is further fixed on one end of an arc-shaped plate with elasticity, and the other end of the arc-shaped plate is fixed on the connecting part of the frying pan.

4. The temperature measuring assembly for detecting the temperature of a frying pan according to claim 1, wherein, The copper sleeve is made of red copper.

5. The temperature measuring assembly for detecting the temperature of a frying pan according to claim 4, wherein, The length of the copper sleeve is 25-30 mm.

6. The temperature measuring assembly for detecting the temperature of a frying pan according to claim 1, wherein, The temperature sensor is a platinum resistance temperature sensor, which comprises a temperature measuring probe and a signal line, and the signal line is made of Teflon metal shielding wire.

7. A frying pan device, characterized in that The temperature measuring assembly for detecting the temperature of the frying pan comprises a housing, a heating body, a frying pan, and a connecting part coaxially arranged on the frying pan.

Images