Handle structure and food temperature probe

Abstract

The application relates to the technical field of food monitoring equipment, in particular to a handle structure and a food temperature probe. The handle structure of the application directly sets an insulating layer, such as glass glaze or the like, on the outer side of a sensor lead wire, so that the effect of extremely small size, high temperature resistance and extremely strong insulation performance is achieved. Since the size of the sensor lead wire is very small, the opening of the handle can be made into small size, the strength of the handle is improved under the same peripheral size, or the periphery of the handle can be made smaller, the thermal inertia of the handle can be reduced, and the sensitivity of the furnace temperature sensor is improved. Since the size of the sensor lead wire is very small, the opening of the handle can also be filled with glue, the gap can be greatly reduced, so that air expansion and thermal breathing phenomenon are reduced, and the waterproof performance and safety of the product are improved.

Description

Technical Field

[0001] This application relates to the field of food monitoring equipment technology, specifically to a handle structure and a food temperature probe, which is particularly suitable for food temperature measurement scenarios requiring high precision, high temperature resistance and high safety, such as real-time temperature monitoring during kitchen cooking, food processing or baking. Background Technology

[0002] Food temperature probes consist of a needle body and a handle. Typically, a PCB board is located inside the needle body, and an opening is provided on the handle. An antenna, sensor, and other structures are housed within the opening. Therefore, it is necessary to connect the sensor leads, antenna, and any conductive materials such as power lines that may be present to the PCB board through the opening.

[0003] In existing technologies, sensor leads, antennas, and power lines are all housed within a single opening, requiring mutual insulation. In food temperature probes, the sensor leads are typically one or two resistance wires, and the antenna and power lines are usually uninsulated. Therefore, multiple conductors need insulation. Common insulation methods include using polyimide tubing, ceramic tubing, glass tubing, and inorganic adhesives. Since the handle area is where the food temperature probe tests oven temperature, it operates at very high temperatures. High-temperature use demands high-quality insulation materials, leading to higher costs and increasing the risk of short circuits at high temperatures, causing sensor failure and weakened antenna signal transmission. Furthermore, the conductors are positioned within the handle opening, requiring specifically designed opening dimensions. Existing conductor insulation materials have complex structures, necessitating larger opening diameters. Larger opening diameters mean greater hollowing out of the ceramic handle, resulting in weaker handle strength. Food temperature probes are everyday products frequently used by hand and are prone to dropping; lower strength leads to greater breakage.

[0004] Therefore, finding a suitable structure for a food temperature probe is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Based on this, in order to solve the problems mentioned in the prior art, such as the complex structure of the insulating material of the existing conductor, the need for a large opening diameter, the larger the hollowing out of the ceramic handle, the insufficient strength of the ceramic handle, and the easy breakage, this application provides a handle structure and a food temperature probe, which directly sets an insulating layer on the outside of the sensor lead and makes the opening of the handle small in size, thereby improving waterproofness, safety and durability.

[0006] In a first aspect, this application provides a handle structure for use with a food temperature probe, including a handle body, sensor leads, an antenna, and an insulating bracket; The handle body is provided with an opening, and the insulating bracket is disposed in the opening; Each sensor lead has an insulating layer on the outside; The sensor leads are located inside the insulating bracket, and the antenna is located outside the insulating bracket. The sensor leads and antenna are connected to the PCB board.

[0007] Furthermore, it also includes a power cord, which is disposed inside the insulating support.

[0008] Furthermore, the power cord has no insulation structure.

[0009] Furthermore, the antenna is a spring antenna, which is sleeved on the outside of the insulating support.

[0010] Furthermore, the handle body is a ceramic handle.

[0011] Furthermore, the sensor leads are NTC leads or thermocouple leads.

[0012] Furthermore, the insulating support is a glass insulating tube or a ceramic insulating tube.

[0013] Furthermore, the insulating layer on the outside of the sensor lead is a glass enamel layer.

[0014] Furthermore, the opening in the handle body is filled with adhesive between the insulating bracket and the sensor lead.

[0015] Secondly, this application provides a food temperature probe, including a handle structure as described in any of the first aspects.

[0016] According to the handle structure and food temperature probe provided in this application, the beneficial effects are as follows: The handle structure of this application directly sets an insulating layer, such as glass glaze, on the outside of the sensor lead, thereby achieving the effects of extremely small size, high temperature resistance, and extremely strong insulation performance. Because the size of the sensor lead is very small, the opening of the handle can be made into a small size, increasing the handle strength with the same peripheral size, or the peripheral of the handle can be made even smaller, which can reduce the thermal inertia of the handle and improve the sensitivity of the oven temperature sensor. Because the size of the sensor lead is very small, the opening of the handle can also be filled with glue, which can greatly reduce the gap, thereby reducing air expansion and thermal breathing phenomenon, and improving the waterproof performance and safety of the product. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Attached image description: Figure 1 This is a cross-sectional schematic diagram of the handle structure in one embodiment; Figure 2 This is a top cross-sectional view of the handle structure in one embodiment; Figure 3 This is a top cross-sectional view of the handle structure lead wire arrangement in one embodiment.

[0019] Figure label: 10. Handle body; 11. Sensor lead wire; 12. Antenna; 13. Insulating bracket; 14. Opening; 15. Insulating layer; 16. Power cord. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Example 1 In existing technologies, conductive parts such as sensor leads, antennas, and power lines share a single opening, requiring insulation treatment using materials such as polyimide tubes and ceramic tubes. This process is prone to failure at high temperatures and is costly. To accommodate the complex insulation structure, the handle opening diameter is relatively large, resulting in reduced strength of the ceramic handle and making the product prone to breakage upon drop. The large opening size also leads to high thermal inertia in the handle, affecting the sensitivity of the temperature sensor. Furthermore, the large air gap within the opening results in significant thermal expansion and thermal breathing, leading to poor waterproof performance and safety.

[0022] See Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a handle structure for use with a food temperature probe, including a handle body 10, sensor leads 11, an antenna 12, and an insulating bracket 13; the handle body 10 is provided with an opening 14, and the insulating bracket 13 is disposed within the opening 14; an insulating layer 15 is provided on the outside of each sensor lead 11; the sensor lead 11 is disposed on the inside of the insulating bracket 13, the antenna 12 is disposed on the outside of the insulating bracket 13, and the sensor lead 11 and the antenna 12 are connected to a PCB board.

[0023] It should be noted that layered insulation is used, with an insulating layer 15 on the outside of the sensor lead 11, which is heat resistant and has strong insulation. The sensor lead 11 is then physically isolated from the antenna 12 by the insulating bracket 13. The sensor lead 11 is small in size, which can reduce the diameter of the handle opening 14, improve drop resistance, and enhance durability.

[0024] Specifically, it also includes a power cord 16, which is disposed inside the insulating bracket 13.

[0025] It should be noted that the power cord 16 and the sensor lead 11 are together located inside the insulating bracket 13, and the sensor lead 11 is provided with an insulating layer 15 on the outside to avoid interference.

[0026] Specifically, there is no insulation structure on the power cord 16.

[0027] It should be noted that the power cord 16 has no insulation structure, while the sensor lead 11 has an insulation layer 15 on the outside. This avoids interference, and the absence of insulation on the power cord 16 simplifies the insulation structure and reduces costs.

[0028] It is worth noting that in this embodiment, the handle structure directly sets an insulating layer 15, such as glass glaze, on the outside of the sensor lead 11, thereby achieving the effects of extremely small size, high temperature resistance, and extremely strong insulation performance. Since the sensor lead 11 is very small, the opening 14 of the handle can be made small, increasing the handle strength with the same peripheral size, or the outer perimeter of the handle can be made even smaller, which can reduce the thermal inertia of the handle and improve the sensitivity of the furnace temperature sensor. Since the sensor lead 11 is very small, the opening 14 of the handle can also be filled with glue, which can greatly reduce the gap, thereby reducing air expansion and thermal breathing phenomenon, and improving the waterproof performance and safety of the product.

[0029] Example 2 Based on Example 1, see [link / reference] Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a further solution.

[0030] Specifically, the antenna 12 is a spring antenna 12, which is sleeved on the outside of the insulating bracket 13.

[0031] It should be noted that the antenna 12 is a spring antenna 12, which can be sleeved on the outside of the insulating bracket 13 to reduce interference and fix the position of the antenna 12. The spring antenna 12 is located on the outside of the insulating bracket 13 and is physically isolated from the sensor lead 11 on the inside through the insulating bracket 13. The spiral structure of the spring antenna 12 is not easily deformed or displaced in a high-temperature environment, ensuring the stability of the signal transmission of the antenna 12.

[0032] Specifically, the handle body 10 is a ceramic handle.

[0033] It should be noted that ceramic materials have high hardness and high compressive strength.

[0034] Specifically, the sensor lead 11 is an NTC lead or a thermocouple lead.

[0035] It should be noted that NTC or thermocouples have high sensitivity and fast response speed.

[0036] Specifically, the insulating support 13 is a glass insulating tube or a ceramic insulating tube.

[0037] It should be noted that the insulating support 13 is a glass insulating tube or a ceramic insulating tube. Both glass and ceramic insulating tubes have extremely high temperature resistance, which meets the needs of food temperature probes in high-temperature scenarios such as oven temperature testing, avoids deformation and aging under high temperature, and ensures the structural stability and safety of the product in high-temperature environments.

[0038] Specifically, the insulating layer 15 on the outside of the sensor lead 11 is a glass enamel layer.

[0039] It should be noted that the glass enamel layer is extremely thin, typically only 0.1mm to 0.2mm. This allows the overall diameter of the sensor lead 11 to be controlled within a very small range while ensuring insulation performance. This reduces the diameter of the handle opening 14, increases the strength of the handle structure, and reduces the risk of breakage due to drops or collisions.

[0040] Specifically, at the opening 14 of the handle body 10, the space between the insulating bracket 13 and the sensor lead 11 is filled with adhesive.

[0041] It should be noted that at the opening 14 of the handle body 10, the gap between the insulating bracket 13 and the sensor lead 11 is filled with colloid. The colloid filling can seal the tiny gap between the insulating bracket 13 and the sensor lead 11, improving water resistance. After filling, the space for thermal expansion of air is eliminated, suppressing the thermal breathing phenomenon under high temperature. After the colloid filling, the insulating bracket 13, the sensor lead 11 and the handle body 10 are firmly combined into a whole, dispersing the stress concentration when external force is applied, further improving the handle's drop resistance and reducing the risk of breakage due to drops or collisions.

[0042] Example 3 Based on Example 1 and / or Example 2, see [link / reference] Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a food temperature probe, including the handle structure of Embodiment 1 and / or Embodiment 2.

[0043] Specifically, in this embodiment, the food temperature probe has an insulating layer 15, such as glass glaze, directly placed on the outside of the sensor lead 11, thereby achieving the effects of extremely small size, high temperature resistance, and extremely strong insulation performance. Since the sensor lead 11 is very small, the opening 14 of the handle can be made small, increasing the strength of the handle with the same peripheral size, or the peripheral of the handle can be made even smaller, which can reduce the thermal inertia of the handle and improve the sensitivity of the oven temperature sensor. Since the sensor lead 11 is very small, the opening 14 of the handle can also be filled with glue, which can greatly reduce the gap, thereby reducing air expansion and thermal breathing, and improving the waterproof performance and safety of the product.

[0044] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0046] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A handle structure applied to a food temperature probe, characterized by, Includes the handle body, sensor leads, antenna, and insulating bracket; The handle body is provided with an opening, and the insulating bracket is disposed in the opening; Each sensor lead has an insulating layer on the outside; The sensor leads are located inside the insulating bracket, and the antenna is located outside the insulating bracket. The sensor leads and antenna are connected to the PCB board.

2. A handle structure according to claim 1, wherein It also includes a power cord, which is disposed inside the insulating bracket.

3. A handle structure according to claim 2, wherein The power cord has no insulation.

4. The handle structure according to claim 1, characterized in that, The antenna is a spring antenna, which is sleeved on the outside of the insulating bracket.

5. A handle structure according to claim 1, characterized in that, The handle body is a ceramic handle.

6. The handle structure according to claim 1, characterized in that, The sensor leads are NTC leads or thermocouple leads.

7. The handle structure according to claim 1, characterized in that, The insulating support is a glass insulating tube or a ceramic insulating tube.

8. A handle structure according to claim 1, characterized in that, The insulating layer on the outside of the sensor lead is a glass enamel layer.

9. A handle structure according to claim 1, characterized in that, The opening in the handle body is filled with adhesive between the insulating bracket and the sensor lead.

10. A food temperature probe, characterized in that, Includes the handle structure as described in any one of claims 1-9.

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