Temperature sensor for induction cooker

Abstract

The utility model relates to the field of temperature sensors, in particular to a temperature sensor for an induction cooker. According to the temperature sensor provided by the utility model, the thermistor element and the lead are welded and then packaged in the ceramic shell, the ceramic shell can bear AC4000V voltage without being broken down through the insulating property of the material of the ceramic shell, the thermistor element in the ceramic shell can be effectively protected from being damaged by high-voltage current, and besides the insulating property of the ceramic shell, the service life of the ceramic shell is prolonged. And the heat-conducting property is good. And meanwhile, a silica gel cap is arranged on the ceramic shell, so that the protection of the ceramic shell is improved, and an easy-to-support mounting structure is provided. According to the temperature sensor, the thermistor is completely sealed and packaged, direct exposure is avoided, and faults of the induction cooker caused by abnormal resistance due to a humid environment are reduced. And meanwhile, the temperature sensor can provide high-insulation protection, the induction cooker does not need to be additionally designed for insulation, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of temperature sensors, and more specifically, to a temperature sensor for an induction cooker. Background Art

[0002] Currently, mainstream induction cooker temperature sensors are thermistors directly connected to wires and placed under the cooker panel. This leaves the sensor exposed without insulation (or with poor insulation protection), requiring additional insulation design for the cooker panel, which increases costs. Furthermore, exposed sensors are susceptible to moisture, leading to abnormal resistance and cooker malfunctions. Furthermore, traditional exposed placement can also lead to temperature measurement errors due to misalignment between the thermistor and the panel. Utility Model Content

[0003] The purpose of the utility model is to provide a temperature sensor for an induction cooker, which uses high-temperature glue to encapsulate a thermistor into a high-thermal-conductivity ceramic shell, and the ceramic shell is placed in an easy-to-assemble silicone cap, thereby ensuring high insulation reliability while taking into account assembly design.

[0004] In order to achieve these purposes and other advantages according to the present invention, a temperature sensor for an induction cooker is provided, comprising:

[0005] Ceramic shell;

[0006] The thermistor element is encapsulated in the ceramic shell, and two leads of the thermistor element extend out of the ceramic and are respectively connected with wires; the thermistor element is connected to the control circuit of the induction cooker through the wires to realize the temperature measurement and temperature control functions of the thermistor element.

[0007] An insulating protection component, wherein the ceramic shell is arranged inside the insulating protection component, and the wire passes through the insulating protection component.

[0008] The beneficial effects of the present invention are as follows: after the thermistor element is welded to the wire and encapsulated in a ceramic shell, the ceramic shell, through its inherent insulation properties, can withstand AC4000V without breakdown, effectively protecting the thermistor element within the ceramic shell from damage by high-voltage current. Furthermore, in addition to its insulation properties, the ceramic shell also has excellent thermal conductivity. An insulating protection assembly is also provided on the ceramic shell to enhance its insulation protection. The temperature sensor of the present invention completely encloses the thermistor, preventing direct exposure and reducing the risk of induction cooker malfunctions caused by abnormal resistance values ​​due to humid environments. Furthermore, the temperature sensor itself provides high insulation protection, eliminating the need for a separate insulation design for the induction cooker, thereby reducing costs.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows:

[0010] Furthermore, the insulation protection assembly includes:

[0011] The sleeve has a certain elasticity, the ceramic shell extends into the opening at one end of the sleeve and has an interference fit therewith, thereby achieving a sealed connection between the ceramic shell and the sleeve, and the wire passes through the other end opening of the sleeve;

[0012] A silicone cap is sleeved on the portion where the sleeve is connected to the ceramic shell.

[0013] The beneficial effect of adopting the above further scheme is: in this further scheme, a tube sleeve is provided between the ceramic shell and the silicone cap, and the ceramic shell is sealed by the sleeve to play the role of insulation protection. At the same time, the silicone cap is put on the sleeve to increase the insulation protection. At the same time, the silicone cap is used as a supporting structure. After the silicone cap is fixed, the ceramic shell can be fixed.

[0014] Furthermore, one end of the ceramic shell is provided with an outer flange, and the outer flange is in conflict with both the silicone cap and the sleeve.

[0015] The beneficial effect of adopting the above further solution is: in this further solution, the outer flange is in conflict with both the silicone cap and the sleeve, which facilitates the positioning between the ceramic shell and the silicone cap, and at the same time ensures the sealing of the connection between the ceramic shell and the silicone cap through the sleeve.

[0016] Furthermore, a mounting structure is provided on the silicone cap.

[0017] The beneficial effect of adopting the above further solution is: in this further solution, a mounting structure is provided on the silicone cap, which increases the insulation protection of the thermistor element through the silicone cap and makes the temperature sensor easy to install through the mounting structure.

[0018] Furthermore, the mounting structure includes a first flange and a second flange, and the first flange and the second flange are combined to form a slot.

[0019] The beneficial effect of adopting the above further solution is: in this further solution, a slot is formed between the first flange and the second flange, and the silicone cap can be fixed at the connection through the slot.

[0020] Furthermore, the silicone cap, the first flange and the second flange are integrally formed.

[0021] The beneficial effect of adopting the above further solution is that in this further solution, the silicone cap, the first flange and the second flange are integrally processed and formed to ensure the strength of the silicone cap.

[0022] Furthermore, the sleeve includes a first part and a second part, the first part and the second part are connected and respectively adapted to the ceramic shell and the wire.

[0023] The beneficial effect of adopting the above further scheme is: in this further scheme, the sleeve is set as a first part and a second part with different inner diameters, the ceramic shell is fixed in the first part, and the wire passes through the second part, thereby avoiding relative movement between the sleeve and the ceramic shell along the axial direction of the sleeve.

[0024] Furthermore, it also includes:

[0025] A wire joining piece is embedded in the sleeve to fix the two wires together.

[0026] The beneficial effect of adopting the above further solution is: in this further solution, the two wires are fixed together by the wire-joining piece, and the wire-joining piece and the sleeve are interference-fitted, so that the two wires can be fixed in the sleeve, thereby ensuring the stability of the wires.

[0027] Furthermore, the line-jointing member is a copper strip.

[0028] The beneficial effect of adopting the above further solution is: in this further solution, the two wires are tied together by a copper strip, and the two are fixed together in parallel, and then the copper strip and the sleeve are fixed by interference fit.

[0029] Furthermore, the thermistor element is connected and fixed to the ceramic shell by high-temperature glue.

[0030] The above further embodiment has the following beneficial effects: In this further embodiment, the thermistor element is encapsulated in a ceramic housing using high-temperature adhesive, which can withstand voltages exceeding AC 4000V without damage. The high-temperature adhesive not only provides insulation protection for the thermistor element, but also isolates the leads of the thermistor element to prevent short circuits.

[0031] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of the temperature sensor described in the present utility model;

[0033] Figure 2 This is an exploded view of the temperature sensor described in the present utility model;

[0034] Figure 3 This is a cross-sectional view of the temperature sensor described in the present invention.

[0035] Wherein, the reference numerals represent:

[0036] Thermistor element 1; ceramic shell 2; outer flange 21; silicone cap 3; first flange 31; second flange 32; high-temperature adhesive 4; sleeve 5; parallel wire 6; wire 7; DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the embodiments so that those skilled in the art can implement the invention with reference to the description.

[0038] It should be noted that, in the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] like Figure 1-Figure 3 As shown, an embodiment of the present invention provides a temperature sensor for an induction cooker, comprising:

[0040] Ceramic shell 2;

[0041] The thermistor element 1 is encapsulated in the ceramic shell 2, and the ceramic shell 2 is filled with high-temperature glue 4, so that the thermistor element 1 is connected and fixed to the ceramic shell 2 through the high-temperature glue 4;

[0042] The two leads of the thermistor element 1 extend out of the ceramic and are respectively connected to a wire 7;

[0043] The insulating protection assembly comprises: a sleeve 5, wherein the ceramic shell 2 extends into an opening at one end thereof and is sealed therewith, and the wire 7 passes through the other opening of the sleeve 5;

[0044] The silicone cap 3 is sleeved on the portion where the sleeve 5 is connected to the ceramic shell 2 .

[0045] In this embodiment,

[0046] After thermistor element 1 is welded to wire 7, it is encapsulated in ceramic shell 2 using high-temperature adhesive 4. The ceramic shell 2, thanks to its inherent insulation properties, can withstand AC 4000V without breakdown, effectively protecting thermistor element 1 from damage by high-voltage current. In addition to its insulation properties, the ceramic shell 2 also offers excellent thermal conductivity. An insulating protective assembly is also provided on the ceramic shell 2 to further enhance its insulation protection. The temperature sensor is connected to the induction cooker's control circuit via wire 7, enabling precise temperature measurement and control.

[0047] Preferably, as another embodiment of the present invention, an outer flange 21 is provided at one end of the ceramic shell 2 , and the outer flange 21 abuts against both the silicone cap 3 and the sleeve 5 .

[0048] In this embodiment, after the tube sleeve is put on the ceramic shell 2, the ceramic shell 2 is installed into the silicone cap 3. When the outer flange 21 conflicts with the silicone cap 3, the ceramic shell 2 is installed into the target position. By setting the outer flange 21, it is convenient to achieve the positioning between the ceramic shell 2 and the silicone cap 3. At the same time, the sleeve 5 ensures the sealing of the connection between the ceramic shell 2 and the silicone cap 3.

[0049] Furthermore, the sleeve 5 is composed of a first portion adapted to the ceramic shell 2 and a second portion adapted to the wire 7 .

[0050] The beneficial effect of adopting the above further scheme is: in this further scheme, the sleeve 5 is set to a first part and a second part with different inner diameters, the ceramic shell 2 is fixed in the first part, and the wire 7 passes through the second part, thereby avoiding relative movement between the sleeve and the ceramic shell 2 along the axial direction of the sleeve.

[0051] Preferably, as another embodiment of the present invention, the silicone cap 3 is provided with a mounting structure, and the silicone cap 3 is provided with a first flange 31 and a second flange 32 at intervals, and the first flange 31 and the second flange 32 constitute the mounting structure; the silicone cap 3, the first flange 31 and the second flange 32 are integrally processed and formed.

[0052] In this embodiment, a mounting structure is provided on the silicone cap 3. While the silicone cap 3 increases the insulation protection of the thermistor element 1, the temperature sensor is easily installed through the mounting structure. A clamping portion is formed between the first flange 31 and the second flange 32, and the silicone cap 3 is fixed to the connection by the clamping portion. In addition, the first flange 31 can also be set to a structure including a plurality of spaced-apart plates, one end of the plate is connected to the silicone cap 3, and the other end thereof is inclined toward the other end of the sleeve 5. Under the action of an external force, the other end of the plate can be bent toward the silicone cap 3, so that when the temperature sensor is installed on the plate, the ceramic shell 2 can be inserted toward the mounting hole. During the insertion process, the silicone cap 3 is bent by force and passes through the mounting hole. After the plate passes through the mounting hole, it returns to its original position, and the temperature sensor can be placed on the plate through the first flange 31.

[0053] Preferably, as another embodiment of the present invention, it further includes:

[0054] The wire-joining member 6 is embedded in the sleeve 5 to fix the two wires 7 together; the wire-joining member 6 is a copper strip.

[0055] In this embodiment, the two wires 7 are tied together by a copper tape and fixed side by side. Then, the copper tape and the sleeve 5 are interference fit to fix the wires 7 to the sleeve 5 to ensure the stability of the wires 7.

[0056] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and embodiments shown and described herein.

Claims

1. A temperature sensor for an induction cooker, characterized in that: include: Ceramic shell; A thermistor element is encapsulated in the ceramic shell, and two leads of the thermistor element extend out of the ceramic shell and are respectively connected to wires; An insulating protection component, wherein the ceramic shell is arranged inside the insulating protection component, and the wire passes through the insulating protection component.

2. A temperature sensor for an induction cooker according to claim 1, characterized in that: The insulation protection assembly includes: a sleeve, wherein the ceramic shell extends into an opening at one end thereof and is sealed therewith, and the wire passes through an opening at the other end of the sleeve; A silicone cap is sleeved on the portion where the sleeve is connected to the ceramic shell.

3. A temperature sensor for an induction cooker as claimed in claim 2, characterized in that: One end of the ceramic shell is provided with an outer flange, and the outer flange contacts both the silicone cap and the sleeve.

4. A temperature sensor for an induction cooker as claimed in claim 2, characterized in that: The silicone cap is provided with a mounting structure.

5. A temperature sensor for an induction cooker as claimed in claim 4, characterized in that: The mounting structure includes a first flange and a second flange, and the first flange and the second flange are combined to form a slot.

6. A temperature sensor for an induction cooker as claimed in claim 5, characterized in that: The silicone cap, the first flange and the second flange are integrally formed.

7. The temperature sensor for an induction cooker according to claim 2, wherein: The sleeve includes a first portion and a second portion, wherein the first portion and the second portion are connected and respectively adapted to the ceramic shell and the wire.

8. The temperature sensor for an induction cooker according to claim 2, wherein: Also includes: A wire joining piece is embedded in the sleeve to fix the two wires together.

9. A temperature sensor for an induction cooker according to claim 8, characterized in that: The line paralleling member is a copper strip.

10. A temperature sensor for an induction cooker according to any one of claims 1 to 9, characterized in that: The thermistor element is connected and fixed to the ceramic shell by high-temperature glue.

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