High-temperature-resistant wireless food probe

Abstract

The utility model provides a high-temperature-resistant wireless food probe, which comprises a probe main body, a high-temperature-resistant wireless food probe and a high-temperature-resistant wireless food probe, one end of the handle is connected with the probe main body, and a sealing block is arranged at the joint of the handle and the probe main body; the first pole is embedded in one side of the probe main body, and one side of the first pole is exposed; and the circuit board is arranged in the probe main body. The sealing block is used for blocking the second part to form a closed space, steam or grease can be prevented from entering the probe main body during temperature measurement, a glue filling hole does not need to be reserved in the handle, the handle can be made to be small, the temperature sensing speed of the second temperature sensing element is increased, the glass material is good in high temperature resistance, and the service life of the probe is prolonged. The sealing block has a long service life at a high temperature, has a good infiltration effect between the sealing block and stainless steel during sintering, and has fewer processing steps compared with brazing, so that the sealing block has higher yield and lower manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature probes, in particular to a high temperature resistant wireless food probe. Background Art

[0002] When cooking, especially when using an oven or a steamer to cook food, in order to more accurately grasp the temperature of the ingredients, the cook usually uses a food probe as an auxiliary tool. After inserting the food probe into the middle of the food, the cook can accurately obtain the temperature information inside the food through the temperature sensor at the end, so as to more accurately grasp the degree of maturity of the food and ensure the taste of the food.

[0003] In order to have good heat insulation ability, the existing food probe usually has a handle made of ceramic material and a probe body made of stainless steel. The handle is usually bonded to the probe body by filling with glue. However, during the production process, the handle is prone to eccentricity when connected to the probe body, resulting in one side being too wide and the other side being too narrow, or even one side having no gap for filling with glue, resulting in one side not being filled with glue, and the connection is not stable enough. During the use of the product, external water vapor can easily enter through the gap, thereby corroding the components inside the probe, causing the product to be unable to be used normally. In addition, when bonded by traditional sealant, it can only be used below 200°C, and it is easy to cause sealing failure at high temperatures. For this reason, our company has developed a brazing technology that tightly encapsulates the handle and the probe body, so that the handle and the probe body are well connected. However, when brazing ceramics and stainless steel, multiple welding surfaces need to be processed to ensure the wetting of the brazing material, which is complicated and has low manufacturing cost. At the same time, in order to fill glue into the probe body, a larger inner hole needs to be reserved in the handle. The outer diameter of the handle is relatively large, the handle is not beautiful, and the temperature sensing unit installed in the handle reacts slowly to the temperature.

[0004] Therefore, designing a high temperature resistant wireless food probe is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In order to solve the above problems, the present application proposes a high-temperature resistant wireless food probe, which uses glass as a sealing material and utilizes the characteristics of glass that is resistant to high temperatures and has good wetting properties with stainless steel to seal the probe body to form an enclosed space, thereby ensuring that the internal electronic components are moisture-proof, thereby solving the problems of high cost, poor high-temperature resistance, and slow response speed of the temperature sensing unit in the handle of the prior art.

[0006] This application is implemented through the following technical solutions:

[0007] The present application proposes a high temperature resistant wireless food probe, comprising:

[0008] A probe body, wherein the interior of the probe body is hollow;

[0009] A handle, one end of the handle is connected to the probe body, and a sealing block is provided at the connection between the handle and the probe body;

[0010] A first pole, the first pole is embedded on one side of the probe body, and one side of the first pole is exposed;

[0011] A circuit board, the circuit board is installed in the probe body, and is electrically connected to the first pole through a wire on the circuit board;

[0012] Wherein, a second temperature sensing element is installed in the handle, and the second temperature sensing element is electrically connected to the circuit board through a wire.

[0013] Further, the outer diameter of one end of the handle is less than or equal to the inner diameter of the probe body, one end of the handle is inserted into the probe body, and is connected to the probe body through glass powder or glass paste.

[0014] Further, the probe body includes a first part and a second part, one end of the handle is inserted into the second part, and a sealing block is provided at the connection between the handle and the second part, one end of the first part is sealed, the other end of the first part is connected to the second part, and a closed space is formed inside the first part and the second part.

[0015] Further, a first temperature sensing element and a battery are provided in the probe body, the first temperature sensing element is installed at the tip of the first part, and the first temperature sensing element and the battery are respectively electrically connected to the circuit board.

[0016] Further, heat-conducting silicone grease is filled between the first temperature sensing element and the tip of the first part.

[0017] Further, an antenna is provided on the circuit board, one end of the antenna is connected to the circuit board, the other end of the antenna extends into the handle after passing through the second part, and the circuit board is electrically connected to the first part.

[0018] Further, both the antenna and the wire pass through the sealing block.

[0019] Further, the first part and the second part are integrally connected by welding.

[0020] Further, both the first part and the second part are made of stainless steel, and the handle is made of ceramic.

[0021] Further, the sealing block is made of glass.

[0022] Advantages of the present application:

[0023] 1. Use a glass sealing block to seal the second part, and weld the first part and the second part to form a closed space, which can prevent steam or grease from entering the probe body during temperature measurement;

[0024] 2. Since there is no need to fill glue inside the probe body and no holes for filling glue inside the handle, the handle can be made smaller, so that the heat transfer distance between the second temperature sensing element and the first pole is short and the heat conduction speed is fast, thereby improving the temperature sensing speed of the second temperature sensing element;

[0025] 3. Glass material has good high temperature resistance and does not absorb water, and has a long service life at high temperatures;

[0026] 4. The glass sealing block has a good wetting effect with the stainless steel probe body during sintering, and has fewer processing steps than brazing, resulting in a higher yield and lower manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the handle of the utility model;

[0029] Figure 3 It is a schematic diagram of the structure of the probe body of the utility model;

[0030] The descriptions of the reference numerals in the figures are as follows:

[0031] 1-probe body, 101-first part, 102-second part, 2-handle, 3-sealing block, 4-first pole, 5-circuit board, 6-first temperature sensing element, 7-second temperature sensing element, 8-battery, 9-antenna, 10-welding seam. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by this utility model.

[0035] As Figure 1 、 Figure 2 、 Figure 3 shown, an embodiment of the present utility model provides a high-temperature resistant wireless food probe, including: a probe body 1, with a hollow interior; a handle 2, one end of the handle 2 is connected to the probe body 1, and a sealing block 3 is provided at the connection between the handle 2 and the probe body 1; a first pole 4, the first pole 4 is embedded on one side of the probe body 1, and one side of the first pole 4 is exposed; a circuit board 5, the circuit board 5 is installed in the probe body 1, and the circuit board 5 is electrically connected to the first pole 4 through a wire; wherein, a second temperature sensing element 7 is installed in the handle 2, and the second temperature sensing element 7 is electrically connected to the circuit board 5 through a wire.

[0036] Although in the prior art, a sealed space can be formed between the stainless steel probe body 1 and the ceramic handle 2 through brazing, and then the ceramic material and the stainless steel material are brazed, a transition layer needs to be added on the surface, with many process steps, high cost and low yield. Therefore, in this application, a glass sealing block 3 is used to block the probe body 1 to form a sealed space to prevent the intrusion of water and oil. The glass sealing block has a good wetting effect with the stainless steel probe body 1 during sintering, has fewer processing steps compared to brazing, thus has a higher yield and lower manufacturing cost. The specific processing steps are as follows:

[0037] First, weld the first electrode 4 at the top of the handle 2. At the same time, install the second temperature sensing element 7 and the wire. Then, pour glass powder or glass paste at the top of the probe body 1, and dry it to make the glass powder or glass paste dry and solidify. Then, install the antenna 9 in the handle 2, and insert the handle 2 into the second part 102 of the probe body 1. Then, at the connection between the handle 2 and the second part 102, fill the glass powder or glass paste, and dry it to make the glass powder or glass paste dry and solidify. Then, check whether there is any false soldering or short circuit between the wires. If there is no problem, send the second part 102 of the probe body 1 and the handle 2 into a high-temperature furnace, and sinter the glass powder or glass paste through high temperature to form a hard sealing block 3. The glass powder or glass paste has a good wetting effect with the stainless steel probe body 1, as well as with the metal wire and the antenna during sintering, so as to effectively block the middle part of the second part 102. Check the air tightness of the qualified second part 102 and handle 2 assembly. After passing the inspection, connect the circuit board 5 welded with the battery 8 and the first temperature sensing element 6 to the wire and the antenna 9. Then, fill the end of the first part 101 with thermal conductive silicone grease, and then put the first part 101 on the outer periphery of the circuit board 5. Then, weld the first part 101 and the second part 102 into one body by laser, and then polish the welding part. After passing the inspection, the finished product can be obtained. Through the blocking of the sealing block 3 inside the probe body 1, a closed space is formed to prevent the intrusion of water and oil, and there is no need to fill waterproof glue, so there is no need to reserve a glue filling hole on the handle 2. The handle 2 can be made relatively small, so that the heat transfer distance between the second temperature sensing element 7 and the first electrode 4 is short, the heat conduction speed is fast, and the temperature sensing speed of the second temperature sensing element 7 is improved. The glass material has good high-temperature resistance and does not absorb water, and has a long service life at high temperature.

[0038] Preferably, as Figure 2 shown, the outer diameter of one end of the handle 2 is less than or equal to the inner diameter of the probe body 1. One end of the handle 2 is inserted into the probe body 1 and connected to the probe body 1 through glass powder or glass paste. Through the blocking of the sealing block 3 inside the probe body 1, a closed space can be formed to prevent the intrusion of water and oil. There is no need to fill waterproof glue, so there is no need to reserve a glue filling hole on the handle 2. The handle 2 can be made relatively small, so that the heat transfer distance between the second temperature sensing element 7 and the first electrode 4 is short, the heat conduction speed is fast, and the temperature sensing speed of the second temperature sensing element 7 is improved.

[0039] Preferably, the probe body 1 includes a first part 101 and a second part 102. One end of the handle 2 is inserted into the second part 102, and a sealing block 3 is provided at the connection between the handle 2 and the second part 102. One end of the first part 101 is closed, and the other end of the first part 101 is connected to the second part 102. A closed space is formed inside the first part 101 and the second part 102, as Figure 1As shown, the first part 101 and the second part 102 are connected by a welding seam 10. Since a relatively high temperature is required during the sintering of glass powder or glass paste, the circuit board 5 and the battery 8 cannot withstand such a temperature. Therefore, the probe body 1 is divided into two parts. After the second part 102 and the handle 2 are first processed into a combined body, after welding parts such as the circuit board 5, the battery 8, and the first temperature sensing element 6, the first part 101 and the second part 102 are then welded into one body to make the interior of the probe body 1 completely airtight.

[0040] Specifically, as Figure 3 shown, a first temperature sensing element 6 and a battery 8 are provided inside the probe body 1. The first temperature sensing element 6 is installed at the tip of the first part 101. The first temperature sensing element 6 and the battery 8 are respectively electrically connected to the circuit board 5. The battery 8 powers the circuit board 5 to achieve functions such as temperature detection and wireless data transmission.

[0041] In a specific embodiment, thermal grease is filled between the first temperature sensing element 6 and the tip of the first part 101, so that the temperature increase at the tip of the first part 101 can be transferred to the first temperature sensing element 6. The second temperature sensing element 7 transfers heat to the first electrode 4 through sintered glass, and the heat conduction speed is fast, thereby improving the detection speed.

[0042] In a preferred embodiment, an antenna 9 is provided on the circuit board 5. One end of the antenna 9 is connected to the circuit board 5, and the other end of the antenna 9 extends into the handle 2 after passing through the second part 102. The antenna 9 is used to amplify the signal to achieve good signal transmission. Moreover, the circuit board 5 is electrically connected to the first part 101. When charging the battery 8, one charging wire is connected to the first part 101, and the other charging wire is connected to the first electrode 4, thereby forming a circuit to achieve the purpose of charging the battery 8 in the probe body 1.

[0043] Preferably, the antenna 9 and the wires both pass through the sealing block 3. The glass material has a good wetting effect with the metal during sintering, effectively sealing the second part 102, as well as the antenna 9 and the wires, to prevent the intrusion of water vapor and oil.

[0044] In a specific embodiment, the first part 101 and the second part 102 are welded into one body. Since a relatively high temperature is required during the sintering of glass powder or glass paste, the circuit board 5 and the battery 8 cannot withstand such a temperature. Therefore, the probe body 1 is divided into two parts. After the second part 102 and the handle 2 are first processed into a combined body, after welding parts such as the circuit board 5, the battery 8, and the first temperature sensing element 6, the first part 101 and the second part 102 are then welded into one body to make the interior of the probe body 1 completely airtight.

[0045] In a preferred embodiment, both the first part 101 and the second part 102 are made of stainless steel. Since they need to come into contact with food and withstand high temperatures, using stainless steel is relatively safe. The handle 2 is made of ceramic, and the ceramic has a slow heat conduction speed, making it convenient for the user to hold.

[0046] Preferably, the sealing block 3 is made of glass. The glass sealing block has a good infiltration effect with the stainless steel probe body 1 during sintering, and has fewer processing steps compared to brazing, thus having a higher yield rate and lower manufacturing cost.

[0047] Of course, the present application can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by ordinary technical personnel in the art without any creative labor belong to the scope protected by the present application.

Claims

1. High temperature resistant wireless food probe, characterized in that: include: A probe body (1), wherein the interior of the probe body (1) is hollow; A handle (2), one end of the handle (2) being connected to the probe body (1), and a sealing block (3) being provided at the connection between the handle (2) and the probe body (1); A first pole (4), wherein the first pole (4) is embedded in one side of the probe body (1), and one side of the first pole (4) is exposed; A circuit board (5), the circuit board (5) being installed in the probe body (1), and the circuit board (5) being electrically connected to the first pole (4) via a wire; Wherein, a second temperature sensing element (7) is installed in the handle (2), and the second temperature sensing element (7) is electrically connected to the circuit board (5) via a wire.

2. The high temperature resistant wireless food probe according to claim 1, characterized in that: The outer diameter of one end of the handle (2) is less than or equal to the inner diameter of the probe body (1); one end of the handle (2) is inserted into the probe body (1) and connected to the probe body (1) via glass powder or glass paste.

3. The high temperature resistant wireless food probe according to claim 2, characterized in that: The probe body (1) comprises a first part (101) and a second part (102); one end of the handle (2) is inserted into the second part (102); and a sealing block (3) is provided at the connection between the handle (2) and the second part (102); one end of the first part (101) is sealed, and the other end of the first part (101) is connected to the second part (102); a closed space is formed inside the first part (101) and the second part (102).

4. The high temperature resistant wireless food probe according to claim 3, characterized in that: A first temperature sensing element (6) and a battery (8) are provided in the probe body (1); the first temperature sensing element (6) is mounted on the tip of the first part (101); the first temperature sensing element (6) and the battery (8) are electrically connected to the circuit board (5) respectively.

5. The high temperature resistant wireless food probe according to claim 4, characterized in that: Thermal conductive silicone grease is filled between the first temperature sensing element (6) and the tip of the first part (101).

6. The high temperature resistant wireless food probe according to claim 4, characterized in that: An antenna (9) is provided on the circuit board (5), one end of the antenna (9) is connected to the circuit board (5), the other end of the antenna (9) passes through the second part (102) and extends into the handle (2), and the circuit board (5) is electrically connected to the first part (101).

7. The high temperature resistant wireless food probe according to claim 6, characterized in that: The antenna (9) and the wire both pass through the sealing block (3).

8. The high temperature resistant wireless food probe according to claim 3, characterized in that: The first part (101) and the second part (102) are connected as a whole by welding.

9. The high temperature resistant wireless food probe according to claim 3, characterized in that: The first part (101) and the second part (102) are both made of stainless steel, and the handle (2) is made of ceramic.

10. The high temperature resistant wireless food probe according to claim 1, characterized in that: The sealing block (3) is made of glass.

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