A wireless temperature probe

Abstract

The utility model discloses a wireless temperature probe, including cylinder, handle, conducting component, antenna unit, first temperature measuring component, power supply unit and PCB circuit board, and conducting head is connected with each other with handle, and the inside assembly of cylinder has second temperature measuring component and third temperature measuring component, and second temperature measuring component is used for real -time detection PCB circuit board temperature, and third temperature measuring component is used for real -time detection food temperature, and temperature probe configuration is the inside of the oven that can extend, and its tip can insert the inside food and carry out temperature measurement, when the user roasts food, will temperature probe extend into the oven, and PCB circuit board and second temperature measuring probe are in the oven space, and second temperature measuring probe real -time monitoring PCB circuit board temperature and will temperature data feedback to control system, and control system judges according to preset temperature threshold value, when temperature is close to dangerous threshold value, sends out the warning of reminding, and reminds the user to reduce the oven temperature or stop heating, prevents the carbonization of PCB circuit board because of high temperature environment.

Description

Technical Field

[0001] This utility model relates to the field of temperature probe technology, specifically a wireless temperature probe. Background Technology

[0002] In the process of high-temperature baking, temperature measuring equipment plays an important role in controlling the baking temperature and heat of food. At present, most of the temperature probes commonly found on the market adopt similar structures, mainly consisting of a cylinder, handle, conductive components, antenna unit, temperature measuring component, power supply unit, and PCB circuit board. The end of the cylinder away from the handle is usually designed with a conical tip. This tip structure makes it easy for the probe to be inserted into the food to obtain the accurate temperature inside the food. The temperature measuring component is assembled in the tip of the cylinder. It can detect the temperature of the food in real time and accurately, and transmit the temperature signal to the subsequent processing unit through the conductive components. In a high-temperature baking environment, the PCB circuit board is in the oven space. The temperature inside the oven often rises significantly during the baking process. When the temperature exceeds the limit that the PCB circuit board can withstand, it is very likely to cause carbonization of the PCB circuit board. After carbonization, the internal circuit structure of the PCB circuit board will be destroyed, resulting in a decrease or even loss of conductivity, which in turn makes the entire temperature measuring device unable to work properly. However, existing temperature probes only focus on measuring the temperature of food, ignoring the impact of the high-temperature environment on the PCB circuit board itself. The lack of effective monitoring of the PCB circuit board temperature makes it impossible for users to know in time whether the PCB circuit board is in a dangerous temperature state, resulting in poor performance. Utility Model Content

[0003] To overcome the shortcomings of existing technical solutions, this utility model provides a wireless temperature probe that can effectively solve the technical problem that existing temperature probes lack effective monitoring of PCB circuit board temperature, making it impossible for users to know in a timely manner whether the PCB circuit board is in a dangerous temperature state.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a wireless temperature probe, including a cylinder, a handle, a conductive component, an antenna unit, a first temperature measuring component, a power supply unit, and a PCB circuit board. The cylinder and the handle are connected to each other, and the end of the cylinder away from the handle is a conical tip. The cylinder is equipped with a second temperature measuring component and a third temperature measuring component. The second temperature measuring component includes a second temperature measuring probe for real-time detection of the temperature of the PCB circuit board, and the third temperature measuring component includes a third temperature measuring probe for real-time detection of the temperature of food.

[0005] Furthermore, the conductive component includes a conductive head and a conductive wire. The conductive head is connected to the handle, and the conductive wire is integrally formed with the conductive head. The other end of the conductive wire is electrically connected to the PCB circuit board.

[0006] Furthermore, one end of the antenna unit is electrically connected to the PCB circuit board, and the first temperature measuring component includes a connecting wire and a first temperature measuring probe. One end of the connecting wire is electrically connected to the first temperature measuring probe, and the other end is electrically connected to the PCB circuit board. In addition, the conductive wire, the connecting wire, and the antenna unit are arranged at intervals.

[0007] Furthermore, the cylinder is equipped with an insulating component that separates the first temperature probe, the antenna unit, and the conductive wire.

[0008] Furthermore, the isolation component is provided with a first groove, a second groove and a third groove, wherein the first groove is used to accommodate a conductive wire, the second groove is used to accommodate an antenna, and the third groove is used to accommodate a first temperature measuring component.

[0009] Furthermore, the first temperature probe is located in the middle of the cylinder.

[0010] Furthermore, the PCB circuit board and the power supply unit are assembled on the side of the cylinder near the tip. The PCB circuit board is provided with an FPC circuit board and a conductive negative electrode that is electrically connected to the power supply unit. The second temperature probe is located at one end of the FPC circuit board, and the third temperature probe is located at the other end of the FPC circuit board.

[0011] Furthermore, the outer surface of the handle is provided with at least two inner grooves to form a gripping surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The temperature probe is configured to extend into the oven, and its tip can be inserted into the food to measure the temperature. When the user is baking food, the temperature probe is inserted into the oven. At this time, the PCB circuit board and the second temperature probe are in the oven space. The second temperature probe monitors the temperature of the PCB circuit board in real time and feeds the temperature data back to the control system. The control system makes a judgment based on the preset temperature threshold. When the temperature approaches the danger threshold, it issues an alert warning signal to remind the user to lower the oven temperature or stop heating to prevent the PCB circuit board from carbonizing due to the high temperature environment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a wireless temperature probe. Figure 2 Exploded view of the assembly structure of the cylinder and handle; Figure 3 An exploded view of the assembly structure of conductive wires, antenna elements, connecting wires, and isolation components; Figure 4 This is a schematic diagram of the assembly structure of conductive wires, antenna elements, connecting wires, and isolation components; Figure 5 for Figure 4 Enlarged view of the structure of part A in the middle.

[0014] Numbering on the map: 1. Cylinder body; 2. Handle; 3. Tip; 4. Grip surface; 5. Isolator; 6. Conductive negative electrode; 7. Power supply unit; 8. PCB circuit board; 9. FPC circuit board; 10. Conductive head; 11. Conductive wire; 12. Connecting end; 14. Antenna unit; 15. Second temperature probe; 16. Third temperature probe; 17. First temperature probe; 18. Connecting wire; 19. First groove; 20. Second groove; 21. Third groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-5As shown, this utility model provides a wireless temperature probe, including a cylinder 1, a handle 2, a conductive component, an antenna unit 14, a first temperature measuring component, a second temperature measuring component, a third temperature measuring component, a power supply unit 7, and a PCB circuit board 8. The handle 2 is made of ceramic material, with a hollow interior forming an axially penetrating hollow cavity. Internal threads are provided on the inner walls of both ends of the handle 2, and at least two internal grooves are provided on the outer surface of the handle 2 to form a gripping surface 4. The conductive component includes a conductive head 10 and a conductive wire 11. The conductive head 10 serves as the positive electrode, and the conductive wire 11 is integrally formed with the conductive head 10. The conductive head 10 is connected to the handle 2. Specifically, a connecting end 12 is provided on the side of the conductive head 10 facing the handle 2, and the outer wall of the connecting end 12 has an external thread that matches the internal thread of the handle 2. During assembly, the conductive head 10 and the handle 2 are tightly connected through the threads. The other end of the conductive wire 11 passes through the hollow cavity and connects with the PCB circuit board 8. Electrically connected, one end of the antenna unit 14 is electrically connected to the PCB circuit board 8, and the other end extends towards the conductive head 10. The first temperature measuring component includes a connecting wire 18 and a first temperature measuring probe 17. The first temperature measuring probe 17 is located in the middle of the cylinder 1 and is used to detect the temperature of the external environment such as an oven or flame in real time. One end of the connecting wire 18 is electrically connected to the first temperature measuring probe 17, and the other end is electrically connected to the PCB circuit board 8. The conductive line 11, the connecting wire 18, and the antenna unit 14 are arranged at intervals. In addition, the cylinder 1 is also equipped with an isolation component 5 to separate the first temperature measuring probe 17, the antenna unit 14, and the conductive line 11, thereby achieving electrical isolation and physical separation between the first temperature measuring probe 17, the antenna unit 14, and the conductive line 11. The isolation component 5 is made of PEEK material, which has high temperature resistance and maintains structural integrity and electrical insulation performance in a high temperature environment of 300℃. The isolator 5 is cylindrical, and its outer cylindrical surface is uniformly provided with a first groove 19, a second groove 20 and a third groove 21 along the circumference. The first groove 19 extends through the entire length of the isolator 5 along the axial direction and is used to accommodate the conductive wire 11. The second groove 20 extends axially for 90% to 95% of the total length of the isolator 5 and is used to accommodate the antenna. The third groove 21 extends axially for 50% to 60% of the total length of the isolator 5 and is used to accommodate the first temperature measuring component. Both the cylinder body 1 and the conductive head 10 are made of food-grade stainless steel. The cylinder body 1 is connected to the handle 2. The end of the cylinder body 1 away from the handle 2 is a conical tip 3 for inserting into food. The outer wall of the end of the cylinder body 1 facing the handle 2 is provided with an external thread that matches the internal thread of the handle 2. During assembly, the cylinder body 1 and the handle 2 are tightly connected through the thread. The PCB circuit board 8 and the power supply unit 7 are assembled on the side of the cylinder 1 near the tip 3. The power supply unit 7 is a battery. The PCB circuit board 8 is provided with an FPC circuit board 9 for realizing flexible circuit connection. The FPC circuit board 9 is elongated and also has a conductive negative electrode 6 that is electrically connected to the power supply unit 7. The second temperature measuring component includes a second temperature measuring probe 15 located at one end of the FPC circuit board 9 for real-time detection of the temperature of the PCB circuit board 8. The third temperature measuring component includes a third temperature measuring probe 16 located at the other end of the FPC circuit board 9, which is assembled at the tip 3 of the cylinder 1 for real-time detection of the temperature of the food. The temperature probe is configured to extend into the oven, and its tip 3 can be inserted into the food to measure the temperature. When the user is baking food, the temperature probe is inserted into the oven. At this time, the PCB circuit board 8 and the second temperature probe 15 are in the oven space. The second temperature probe 15 monitors the temperature of the PCB circuit board 8 in real time and feeds the temperature data back to the control system. The control system judges according to the preset temperature threshold. When the temperature approaches the danger threshold, it issues a warning signal to remind the user to reduce the oven temperature or stop heating to prevent the PCB circuit board 8 from carbonizing due to the high temperature environment. It should be noted that the process and principle of the second temperature probe 15 monitoring the temperature of the PCB circuit board 8 in real time, feeding the temperature data back to the control system, and the control system judging according to the preset temperature threshold and issuing a warning signal to remind the user to reduce the oven temperature or stop heating to prevent the PCB circuit board 8 from carbonizing are conventional technical means. The warning methods include, but are not limited to, emitting a buzzing sound or causing the temperature probe to vibrate.

[0017] Compared to traditional technologies: 1. The temperature probe is configured to extend into the oven, and its tip 3 can be inserted into the food to measure the temperature. When the user bakes food, the temperature probe is inserted into the oven. At this time, the first temperature probe 17 detects the temperature of the external environment such as the oven or flame in real time. The PCB circuit board 8 and the second temperature probe 15 are in the oven space. The second temperature probe 15 monitors the temperature of the PCB circuit board 8 in real time and feeds the temperature data back to the control system. The control system makes a judgment based on the preset temperature threshold. When the temperature approaches the danger threshold, it issues a warning signal to remind the user to reduce the oven temperature or stop heating to prevent the PCB circuit board 8 from carbonizing due to the high temperature environment.

[0018] 2. The conductive wire 11 and the conductive head 10 are integrally formed. The integral forming process eliminates the contact resistance problem caused by poor solder joints, oxide layers or impurities in traditional welding, which significantly reduces the internal resistance and energy loss. In addition, the solderless structure enhances the environmental adaptability to high temperature and significantly improves the conductivity stability.

[0019] 3. Commercially available temperature probes integrate the temperature probe, connecting wire, and antenna into one unit. They need to meet multiple requirements such as temperature measurement accuracy, signal transmission anti-interference, and electromagnetic radiation control at the same time, which leads to a surge in design complexity. For example, the integrated structure may cause the electromagnetic waves radiated by the antenna to couple to the temperature measurement signal, or the high temperature of the temperature probe to be conducted to the antenna through the connecting wire, resulting in a decrease in its radiation efficiency. To address the electromagnetic interference caused by the integration of the temperature probe, connecting wires, and antenna in traditional integrated temperature probes, this solution addresses this by distributing the conductive wires 11, connecting wires 18, and antenna unit 14 at intervals. Furthermore, the cylinder 1 is equipped with an isolating component 5 to separate the first temperature probe 17, antenna unit 14, and conductive wires 11, thereby achieving electrical and physical isolation between the first temperature probe 17, antenna unit 14, and conductive wires 11. The isolating component 5 is made of PEEK material, which has high temperature resistance and maintains structural integrity and electrical insulation performance at a high temperature of 300℃.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wireless temperature probe, comprising a cylinder, a handle, a conductive component, an antenna unit, a first temperature measuring component, a power supply unit, and a PCB circuit board, wherein the cylinder and the handle are connected to each other, and the end of the cylinder away from the handle has a tapered tip, characterized in that, The cylinder is equipped with a second temperature measuring component and a third temperature measuring component. The second temperature measuring component includes a second temperature measuring probe for real-time detection of the PCB circuit board temperature, and the third temperature measuring component includes a third temperature measuring probe for real-time detection of the food temperature.

2. The wireless temperature probe according to claim 1, characterized in that, The conductive component includes a conductive head and a conductive wire. The conductive head is connected to the handle, and the conductive wire is integrally formed with the conductive head. The other end of the conductive wire is electrically connected to the PCB circuit board.

3. A wireless temperature probe according to claim 2, characterized in that, One end of the antenna unit is electrically connected to the PCB circuit board. The first temperature measuring component includes a connecting wire and a first temperature measuring probe. One end of the connecting wire is electrically connected to the first temperature measuring probe, and the other end is electrically connected to the PCB circuit board. The conductive wire, the connecting wire, and the antenna unit are arranged at intervals.

4. A wireless temperature probe according to claim 3, characterized in that, The cylinder is equipped with an insulating component that separates the first temperature probe, the antenna unit, and the conductive wire.

5. A wireless temperature probe according to claim 4, characterized in that, The isolation component is provided with a first groove, a second groove and a third groove, wherein the first groove is used to accommodate a conductive wire, the second groove is used to accommodate an antenna and the third groove is used to accommodate a first temperature measuring component.

6. A wireless temperature probe according to claim 3, characterized in that, The first temperature probe is located in the middle of the cylinder.

7. A wireless temperature probe according to claim 1, characterized in that, The PCB circuit board and power supply unit are assembled on the side of the cylinder near the tip. The PCB circuit board has an FPC circuit board and a conductive negative electrode that is electrically connected to the power supply unit. The second temperature probe is located at one end of the FPC circuit board, and the third temperature probe is located at the other end of the FPC circuit board.

8. A wireless temperature probe according to claim 1, characterized in that, The outer surface of the handle has at least two inner grooves to form a gripping surface.

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