A manufacturing method of a temperature measuring pot and a temperature measuring pot

Abstract

The present application discloses a method for manufacturing a temperature measuring pot and a temperature measuring pot, the method for manufacturing the temperature measuring pot comprising: determining the temperature measuring point of the pot blank; pre-fixing the temperature measuring end of the temperature sensor at the temperature measuring point by means of a fixed pressing sheet; and welding the temperature measuring end at the temperature measuring point. The present application pre-fixes the temperature measuring end of the temperature sensor at the temperature measuring point of the pot blank by means of a fixed pressing sheet, and welds the temperature measuring end at the temperature measuring point of the pot blank under the effect of pre-fixation, so that the temperature measuring end can be stabilized at the temperature measuring point during the welding process, facilitating the welding operation, and the welding position is more accurate, thereby improving the temperature measurement accuracy of the temperature measuring pot and improving the performance of the temperature measuring pot.

Description

Technical Field

[0001] The present application relates to the technical field of kitchenware, and in particular to a method for manufacturing a temperature measuring pot and a temperature measuring pot. Background Art

[0002] The temperature measuring cookware collects the temperature of the bottom of the pot for intelligent control of cooking temperature. It adopts the method of welding thermocouple sensors. However, since the pot body and the temperature sensor are two separate independent objects, when the welding operator performs welding operation on the temperature sensor and the pot body, that is, using pliers or special tools to clamp the sensor and press it on the bottom of the pot, it is difficult to ensure that the temperature measuring end of the temperature sensor fits the pot body during the actual welding process. The welding is difficult and the accuracy is poor, which can easily cause inaccurate welding position of the temperature measuring end and even affect the temperature measurement effect of the temperature measuring pot. Summary of the invention

[0003] In view of this, the present application provides a method for manufacturing a temperature measuring pot and a temperature measuring pot, which facilitate welding operations and make the welding position more precise, thereby improving the temperature measurement accuracy of the temperature measuring pot and improving the performance of the temperature measuring pot.

[0004] According to one aspect of the present application, a method for manufacturing a temperature measuring pot is provided, the method comprising:

[0005] Determine the temperature measuring point of the pot blank;

[0006] By fixing the pressing sheet, the temperature measuring end of the temperature sensor is pre-fixed at the temperature measuring point by using the pressing sheet;

[0007] The temperature measuring end is welded at the temperature measuring point.

[0008] Optionally, the pressing sheet includes at least one, each pressing sheet corresponds to a pre-fixed position on the temperature sensor, each pressing sheet covers the pre-fixed position corresponding to the pressing sheet, and each pressing sheet corresponds to two fixed positions, which are respectively located on both sides of the pre-fixed position;

[0009] The method of fixing the pressing sheet to pre-fix the temperature measuring end of the temperature sensor at the temperature measuring point by using the pressing sheet specifically includes:

[0010] Placing the temperature sensor on the outer wall of the pot blank, and positioning the temperature measuring end at the temperature measuring point;

[0011] The pressing sheet is welded at the fixed position by laser cold welding, so that the pressing sheet pre-fixes the temperature sensor under the fixing action of two welding points, wherein the height of each welding point is less than 3 mm.

[0012] Optionally, welding the temperature measuring end at the temperature measuring point specifically includes:

[0013] The temperature measuring end and the temperature measuring point are brazed so that the temperature measuring end is wrapped and fixed on the temperature measuring point under the action of brazing, wherein the area of ​​the soldering point formed by brazing is less than 100mm 2 .

[0014] Optionally, after welding the temperature measuring end at the temperature measuring point, the method further comprises:

[0015] Coating a heat-resistant glue at the outlet end of the temperature sensor, and controlling the environmental conditions according to the curing conditions of the heat-resistant glue to cure the heat-resistant glue;

[0016] After the heat-resistant glue is cured, the pot blank is surface treated to form a coating on the surface of the pot blank, wherein the surface treatment method includes one of a coating process, a blueing process and a nitriding process, and the heat-resistant temperature of the coating formed on the surface of the pot blank is lower than the process temperature of the fixed pressing plate and the welding temperature measuring end.

[0017] Optionally, before coating the temperature-resistant glue at the outlet end of the temperature sensor, the method further comprises:

[0018] According to the surface treatment process temperature corresponding to the surface treatment method, a heat-resistant adhesive having a temperature resistance greater than the surface treatment process temperature is selected.

[0019] Optionally, after the temperature-resistant adhesive is cured and the pot blank is subjected to surface treatment, the method further comprises:

[0020] Performing heat preservation treatment on the pot blank, wherein the heat preservation treatment comprises filling or spraying heat preservation material;

[0021] The shell of the pot blank is installed, and the temperature detection circuit of the temperature sensor is assembled.

[0022] Optionally, the heat preservation treatment of the pot blank specifically includes:

[0023] After the pressing sheet is disassembled, the pot blank is subjected to heat preservation treatment.

[0024] Optionally, the material of the pressed sheet is the same as that of the pot blank;

[0025] The heat preservation treatment of the pot blank specifically includes:

[0026] The pot blank is directly subjected to heat preservation treatment.

[0027] Optionally, the height of each solder joint is less than 1.5 mm; and / or the solder joint area formed by brazing is less than 10 mm 2 .

[0028] According to another aspect of the present application, a temperature measuring pot is provided, and the temperature measuring pot is manufactured by the above method.

[0029] By means of the above technical scheme, the present application provides a method for manufacturing a temperature measuring pot and a temperature measuring pot, in which the temperature measuring end of the temperature sensor is pre-fixed at the temperature measuring point of the pot blank by means of a fixed pressing sheet, and the temperature measuring end is welded to the temperature measuring point of the pot blank under the effect of pre-fixation, so that the temperature measuring end can be stabilized at the temperature measuring point during the welding process, which facilitates the welding operation and makes the welding position more precise, thereby improving the temperature measurement accuracy of the temperature measuring pot and improving the performance of the temperature measuring pot.

[0030] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 A schematic flow chart of a method for manufacturing a temperature measuring pot provided in an embodiment of the present application is shown;

[0033] Figure 2 A schematic diagram of a pre-fixed temperature sensor provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0034] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0035] In this embodiment, a method for making a temperature measuring pot is provided. Figure 1 As shown, the method includes:

[0036] Step 101, determining the temperature measurement point of the pot blank;

[0037] Step 102, pre-fixing the temperature measuring end of the temperature sensor at the temperature measuring point by using the pressing sheet in a fixing pressing sheet manner;

[0038] Step 103, welding the temperature measuring end at the temperature measuring point.

[0039] The embodiment of the present application pre-fixes the temperature sensor so that the temperature measuring end of the temperature sensor is fitted on the position of the pot body where temperature signal collection is required, and then the pre-fixed temperature sensor is welded to ensure that the temperature measuring end of the temperature sensor is fitted with the pot body, facilitate the welding operation, and ensure the accuracy of the welding position.

[0040] First, determine the temperature measuring point of the pot blank, where the temperature measuring point can be one or more. For example, for pots heated by gas stoves, induction cookers, etc., the temperature measuring point can be set at the bottom of the pot blank. For another example, for drum pots, the temperature measuring point can be set at the bottom and side walls of the pot blank. Secondly, by fixing a pressing sheet on the pot blank, the temperature sensor is pressed against the outer wall of the pot blank with the pressing sheet to ensure that the temperature measuring end of the temperature sensor is placed above the temperature measuring point, so as to achieve the effect of pre-fixing the temperature measuring end of the temperature sensor at the temperature measuring point. Finally, the temperature measuring end of the temperature sensor is welded to the temperature measuring point of the pot blank. Since the temperature measuring end is pre-fixed at the temperature measuring point under the fixing action of the pressing sheet, the position of the temperature measuring end is stable during welding, the welding operation is convenient, and the welding position can be guaranteed to be accurate, which helps to improve the temperature measurement accuracy of the temperature measuring pot and improve the performance of the temperature measuring pot.

[0041] By applying the technical solution of this embodiment, the temperature measuring end of the temperature sensor is pre-fixed at the temperature measuring point of the pot blank by fixing the pressing plate, and the temperature measuring end is welded to the temperature measuring point of the pot blank under the effect of pre-fixing, so that the temperature measuring end can be stabilized at the temperature measuring point during the welding process, which facilitates the welding operation and makes the welding position more precise, thereby improving the temperature measurement accuracy of the temperature measuring pot and improving the performance of the temperature measuring pot.

[0042] In the embodiment of the present application, optionally, the pressing sheet includes at least one, each pressing sheet corresponds to a pre-fixed position on the temperature sensor, each pressing sheet covers the pre-fixed position corresponding to the pressing sheet, and each pressing sheet corresponds to two fixed positions, which are respectively located on both sides of the pre-fixed position; step 102 specifically includes:

[0043] The temperature sensor is placed on the outer wall of the pot blank, and the temperature measuring end is located at the temperature measuring point; the pressing sheet is welded at the fixed position by laser cold welding, so that the pressing sheet pre-fixes the temperature sensor under the fixing action of two welding points, wherein the height of each welding point is less than 3 mm.

[0044] In this embodiment, the pressing sheet can be fixed by welding, such as laser cold welding, and each temperature sensor can be pre-fixed by one or more pressing sheets, such as Figure 2As shown, one or more pre-fixed positions can be set on each temperature sensor, and each pre-fixed position corresponds to a pressing plate. When welding the plates, first place the temperature sensor on the outer wall of the pot blank to ensure that the temperature measuring end is located at the position of the temperature measuring point, and then cover the pressing plate on the pre-fixed position of the temperature sensor, and respectively point a welding point on the left and right sides of the pressing plate relative to the pre-fixed position of the temperature sensor, so that the pressing plate presses the pre-fixed position of the temperature sensor under the action of the two welding points, thereby ensuring that the temperature measuring end of the temperature sensor is pre-fixed at the temperature measuring point. It should be noted that in the embodiment of the present application, the pressing plate can be fixed by any means, not limited to the laser cold welding method, as long as it can be ensured that the pot blank will not be damaged when the pressing plate is fixed, and the performance of the pot is affected. For example, the temperature sensor is pre-fixed by pressing the temperature sensor by a manipulator, and the temperature resistance of the contact position of the manipulator pressing is greater than the welding process temperature of the temperature measuring end welding, so as to avoid damage to the manipulator. In a specific application scenario, one of the pre-fixed positions of the temperature sensor is preferably set at a position close to the temperature measuring end to ensure that the temperature measuring end can be better fixed after the pressing plate is fixed.

[0045] In addition, in the embodiment of the present application, the height of the welding point of the welding pressure plate is generally less than 3 mm, preferably less than 1.5 mm, so as not to affect the flatness of the outer wall of the cookware.

[0046] In the embodiment of the present application, optionally, step 103 specifically includes: brazing the temperature measuring end and the temperature measuring point so that the temperature measuring end is wrapped and fixed on the temperature measuring point under the action of brazing, wherein the area of ​​the soldering point formed by brazing is less than 100mm 2 .

[0047] In this embodiment, since there is a gap between the temperature measuring probe and the pot blank, the temperature measuring end is fixed at the temperature measuring point by brazing. After welding, the gap between the temperature measuring end and the pot blank is filled with brazing material. In the embodiment of the present application, a brazing material with good thermal conductivity is selected to ensure that the temperature of the pot body is quickly transmitted to the temperature measuring probe, thereby improving the accuracy of temperature measurement. Among them, the area of ​​the soldering point formed by brazing is generally less than 100mm 2 , preferably less than 10mm 2 , which can maintain the flatness of the outer wall of the pot body, and quickly transfer the temperature to the temperature measuring end, so as to achieve rapid temperature measurement. In addition, it should be noted that the size of the solder joint formed by brazing is specifically related to the size of the temperature measuring probe. When brazing, ensure that the solder joint is as small as possible while the brazing material can include the temperature measuring probe.

[0048] In the embodiment of the present application, optionally, after step 103, the method further includes:

[0049] Step 104, coating a heat-resistant adhesive at the outlet end of the temperature sensor, and controlling the environmental conditions according to the curing conditions of the heat-resistant adhesive to cure the heat-resistant adhesive;

[0050] Step 105, after the heat-resistant glue is cured, the pot blank is surface treated to form a coating on the surface of the pot blank, wherein the surface treatment method includes one of a coating process, a blueing process and a nitriding process, and the heat-resistant temperature of the coating formed on the surface of the pot blank is lower than the process temperature of the fixed pressing plate and the welding temperature measuring end.

[0051] In this embodiment, generally speaking, there is protective glue at the outlet end of the thermocouple temperature sensor commonly used in the temperature measuring pot, which can prevent the two wires of the thermocouple sensor from contacting each other and protect the wires from damage. The temperature resistance of this protective glue is generally below 200°C. When the pot is surface treated, the process temperature of the surface treatment is generally greater than 200°C. For example, the coating process temperature on the surface of the pot blank can reach 400°C, and the blueing process temperature can reach 500°C. The protective glue is easily damaged during the treatment, affecting the performance of the thermocouple temperature sensor. In order to avoid affecting the performance of the temperature sensor after the surface treatment of the pot blank, in the embodiment of the present application, heat-resistant glue is applied to the outlet end of the temperature sensor to avoid damage to the temperature sensor during subsequent surface treatment. Specifically, after the heat-resistant glue is applied to the outlet end of the temperature sensor, the external conditions are controlled according to the curing conditions of the heat-resistant glue. After the heat-resistant glue is cured, the pot blank is surface treated to protect the temperature sensor. For example, the curing conditions of heat-resistant glue are room temperature for 12-24 hours + 80-100℃ for 2 hours + 150℃ for 2 hours + slow cooling. After applying the heat-resistant glue, the pot blank is first placed at room temperature for 12-24 hours, then placed at 80-100℃ for 2 hours, then kept at 150℃ for 2 hours, and finally placed at room temperature and wait for the heat-resistant glue to slowly cool and solidify.

[0052] In addition, in the embodiment of the present application, if the heat-resistant temperature of the coating on the surface of the pot blank formed by the selected surface treatment method is lower than the process temperature of the fixed pressing plate and lower than the process temperature of the welding temperature measuring end, then in order to ensure that the coating is not damaged, the surface treatment step is placed after the welding temperature measuring end to avoid first performing the surface treatment to form the coating and then fixing the pressing plate and welding the temperature measuring end, which will cause the coating to be damaged. Therefore, by first welding the temperature measuring end and then performing the surface treatment, the surface coating is ensured not to be damaged and the quality of the pot body is guaranteed.

[0053] It should be noted that in the embodiment of the present application, the step of coating the heat-resistant glue is not limited to after welding the temperature measuring end. The temperature sensor can also be coated with the heat-resistant glue on the output end of the temperature sensor and wait for curing. In step 102, the temperature sensor that has been coated and cured with the heat-resistant glue is directly fixed with a pressing sheet.

[0054] In the embodiment of the present application, optionally, the heat-resistant glue can be selected in the following manner: based on the surface treatment process temperature corresponding to the surface treatment method, a heat-resistant glue having a heat-resistant temperature greater than the surface treatment process temperature is selected.

[0055] In this embodiment, the type of heat-resistant glue can be determined according to the temperature that can be reached by the surface treatment method of the pot blank to ensure that the heat-resistant glue will not be fused or damaged during the surface treatment process. Specifically, the surface treatment process temperature corresponding to the surface treatment method is determined, and a heat-resistant glue with a temperature resistance greater than the surface treatment process temperature is selected. For example, if a coating method is selected for surface treatment, a heat-resistant glue with a temperature resistance of more than 400°C can be selected. For example, if a blueing method is selected for surface treatment, a heat-resistant glue with a temperature resistance of more than 500°C can be selected.

[0056] In the embodiment of the present application, optionally, after step 105, the method further includes:

[0057] Step 106, performing insulation treatment on the pot blank, wherein the insulation treatment comprises filling or spraying insulation material; installing the shell of the pot blank, and assembling the temperature detection circuit of the temperature sensor.

[0058] In this embodiment, after the surface treatment of the pot blank, it is filled or sprayed with insulation material, such as filling with aerogel, spraying insulation coating, etc., and finally the outer shell of the pot is installed, the pot is wrapped with a rolled plastic shell without screws, and the temperature detection circuit of the temperature sensor is assembled (the circuit can be placed in the handle of the pot) to assemble a temperature measuring pot with a temperature sensor.

[0059] In the above step 106, "insulating the pot blank" may be performed directly without removing the pressing sheet, or may be performed after removing the pressing sheet. Preferably, if a pressing sheet of the same material as the pot blank is used, then the insulation treatment is performed directly, and if a pressing sheet of a different material from the pot blank is used, in order to avoid the influence of the pressing sheet on the heating of the pot, the pressing sheet may be removed first and then the insulation treatment is performed. Common materials for pot blanks include 430 stainless steel, 304 stainless steel, and 316 stainless steel.

[0060] Furthermore, an embodiment of the present application provides a temperature measuring pot, which is manufactured by the following method: determining the temperature measuring point of the pot blank; pre-fixing the temperature measuring end of the temperature sensor at the temperature measuring point by fixing the pressing plate with the pressing plate; and welding the temperature measuring end at the temperature measuring point.

[0061] First, determine the temperature measuring point of the pot blank, where the temperature measuring point can be one or more. For example, for pots heated by gas stoves, induction cookers, etc., the temperature measuring point can be set at the bottom of the pot blank. For another example, for drum pots, the temperature measuring point can be set at the bottom and side walls of the pot blank. Secondly, by fixing a pressing sheet on the pot blank, the temperature sensor is pressed against the outer wall of the pot blank with the pressing sheet to ensure that the temperature measuring end of the temperature sensor is placed above the temperature measuring point, so as to achieve the effect of pre-fixing the temperature measuring end of the temperature sensor at the temperature measuring point. Finally, the temperature measuring end of the temperature sensor is welded to the temperature measuring point of the pot blank. Since the temperature measuring end is pre-fixed at the temperature measuring point under the fixing action of the pressing sheet, the position of the temperature measuring end is stable during welding, the welding operation is convenient, and the welding position can be guaranteed to be accurate, which helps to improve the temperature measurement accuracy of the temperature measuring pot and improve the performance of the temperature measuring pot.

[0062] Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the processes in the accompanying drawings are not necessarily required to implement the present application. The above serial numbers of the present application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited to this, and any changes that can be thought of by those skilled in the art should fall within the scope of protection of the present application.

Claims

1. A method for making a temperature measuring pot, characterized in that: The method comprises: Determine the temperature measuring point of the pot blank; By fixing the pressing sheet, the temperature measuring end of the temperature sensor is pre-fixed at the temperature measuring point by the pressing sheet; wherein the temperature sensor is placed on the outer wall of the pot blank, and the temperature measuring end is located at the temperature measuring point, and the pressing sheet is welded at a fixed position by laser cold welding, so that the pressing sheet pre-fixes the temperature sensor under the fixing action of two welding points; Welding the temperature measuring end at the temperature measuring point; Coating a heat-resistant glue at the outlet end of the temperature sensor, and controlling the environmental conditions according to the curing conditions of the heat-resistant glue to cure the heat-resistant glue; after the heat-resistant glue is cured, performing surface treatment on the pot blank to form a coating on the surface of the pot blank, wherein the heat-resistant temperature of the coating formed on the surface of the pot blank is lower than the process temperature of the fixed pressing sheet and the welding temperature measuring end; The pot blank is subjected to heat preservation treatment, the outer shell of the pot blank is installed, and the temperature detection circuit of the temperature sensor is assembled.

2. The method according to claim 1, characterized in that: The pressing sheet includes at least one, each of the pressing sheets corresponds to a pre-fixed position on the temperature sensor, each of the pressing sheets covers the pre-fixed position corresponding to the pressing sheet, and each of the pressing sheets corresponds to two fixed positions, which are respectively located on both sides of the pre-fixed position; Among them, the height of each welding point is less than 3mm.

3. The method according to claim 2, characterized in that The step of welding the temperature measuring end at the temperature measuring point specifically includes: The temperature measuring end and the temperature measuring point are brazed so that the temperature measuring end is wrapped and fixed on the temperature measuring point under the action of brazing, wherein the area of ​​the soldering point formed by brazing is less than 100mm 2 .

4. The method according to any one of claims 1 to 3, characterized in that The surface treatment method includes one of a coating process, a blueing process and a nitriding process.

5. The method according to claim 4, characterized in that Before coating the temperature-resistant glue at the outlet end of the temperature sensor, the method further comprises: According to the surface treatment process temperature corresponding to the surface treatment method, a heat-resistant adhesive having a temperature resistance greater than the surface treatment process temperature is selected.

6. The method according to claim 4, characterized in that The thermal insulation treatment method includes filling or spraying thermal insulation materials.

7. The method according to claim 6, characterized in that The heat preservation treatment of the pot blank specifically includes: After the pressing sheet is disassembled, the pot blank is subjected to heat preservation treatment.

8. The method according to claim 6, characterized in that The material of the pressed sheet is the same as that of the pot blank; The heat preservation treatment of the pot blank specifically includes: The pot blank is directly subjected to heat preservation treatment.

9. The method according to claim 3, characterized in that: The height of each solder joint is less than 1.5 mm; and / or the solder joint area formed by brazing is less than 10 mm 2 .

10. A temperature measuring pot, characterized in that: The temperature measuring pot is made by the method according to any one of claims 1 to 9.

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