Temperature measuring thermistor installation structure of electromagnetic oven

Abstract

The utility model relates to the technical field of electromagnetic oven, concretely relates to a kind of electromagnetic oven temperature measuring thermistor mounting structure;Including metal casing, the opening of metal casing is equipped with high-temperature-resistant insulating plate, the top of high-temperature-resistant insulating plate is equipped with microcrystalline glass plate;High-temperature-resistant insulating plate's middle part is equipped with wire hole, high-temperature-resistant insulating plate and microcrystalline glass plate between are equipped with with microcrystalline glass plate bottom sticking temperature measuring thermistor;The both ends of temperature measuring thermistor are electrically connected with signal line, signal line passes wire hole and is inserted into the bottom of high-temperature-resistant insulating plate and is connected with the control mainboard of electromagnetic oven;High-temperature-resistant insulating plate's wire hole is filled with the sealing glue for fixed signal line.The utility model compared with prior art uses rubber sealing ring or the mode of the plastic with spring to install temperature measuring thermistor, low cost, and can work under high temperature and not easy to age, can avoid after microcrystalline glass plate breakage, water cannot be leaked to the control mainboard in electromagnetic oven through wire hole.

Description

Technical Field

[0001] This utility model relates to the field of induction cooker technology, specifically to an installation structure for an induction cooker temperature measuring thermistor. Background Technology

[0002] An induction cooker is a highly efficient heating appliance that uses electromagnetic induction to convert electrical energy into heat energy. Its core function is to quickly heat cookware, meeting daily needs such as cooking, boiling water, and keeping food warm.

[0003] To prevent cookware from dry burning or overheating, protect internal core components (such as IGBT power transistors and coils), and achieve automatic power adjustment, induction cookers usually have a temperature-sensing thermistor installed under the microcrystalline glass plate. This thermistor monitors the temperature in real time to ensure safe use and assist in power control.

[0004] Currently, temperature measuring resistors are mostly installed by fixing them to elastic rubber rings or spring-loaded plastic parts, which then contact the microcrystalline glass plate to achieve temperature measurement. However, this method has obvious drawbacks: firstly, the cost of the installation components is relatively high; secondly, the rubber rings and plastic parts are prone to aging in high-temperature environments, and if the microcrystalline glass plate breaks, water can easily leak from these installation points into the induction cooker, thus affecting the normal operation of the equipment. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problems of high cost and easy aging of existing temperature-measuring thermistors installed on induction cookers, and to provide an installation structure for temperature-measuring thermistors in induction cookers.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: An installation structure for a temperature-measuring thermistor in an induction cooker includes a metal casing with an opening at the top, a high-temperature resistant insulating plate at the opening of the metal casing, and a microcrystalline glass plate on top of the high-temperature resistant insulating plate. A wire-passing hole is provided in the middle of the high-temperature resistant insulation board. A temperature-measuring thermistor is provided between the high-temperature resistant insulation board and the microcrystalline glass plate and is attached to the bottom of the microcrystalline glass plate. Both ends of the temperature-measuring thermistor are electrically connected to signal lines. The signal lines pass through the wire-passing hole, extend into the bottom of the high-temperature resistant insulation board, and are connected to the control board of the induction cooker. The through holes of the high-temperature resistant insulating board are filled with sealant for fixing the signal lines.

[0007] Furthermore, the two signal lines are twisted together to form a twisted pair, which is connected to the control board of the induction cooker through a connector, and transmits the signal from the temperature-sensing thermistor to the control board.

[0008] Furthermore, adhesive is provided at the top edge of the high-temperature resistant insulation board, and the microcrystalline glass plate is adhered to the top of the high-temperature resistant insulation board by sealant.

[0009] Furthermore, both the sealant and the adhesive are glass sealants.

[0010] Furthermore, the high-temperature resistant insulation board is a high-temperature resistant mica sheet.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The induction cooker temperature-sensing thermistor mounting structure provided by this utility model uses a wire-passing hole set on a high-temperature resistant insulating plate. The temperature-sensing thermistor is directly installed between the microcrystalline glass plate and the high-temperature resistant insulating plate, and the signal wire is fixed in the wire-passing hole with sealant. Compared with the existing method of using rubber sealing rings or spring-loaded plastic to install the temperature-sensing thermistor, the cost is low. Moreover, compared with rubber sealing rings or spring-loaded plastic, it can work at high temperatures and is not easy to age. It can also prevent water from leaking into the control board inside the induction cooker through the wire-passing hole after the microcrystalline glass plate breaks. Attached Figure Description

[0012] Figure 1 This is one of the structural schematic diagrams of an embodiment of the present utility model; Figure 2 This is a second structural schematic diagram of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the present invention with the microcrystalline glass plate removed.

[0013] Explanation of reference numerals in the attached diagram: 1-Metal casing, 2-High temperature resistant insulating board, 3-Microcrystalline glass plate, 4-Wire hole, 5-Temperature measuring thermistor, 6-Signal line, 7-Sealant, 8-Connector, 9-Adhesive. Detailed Implementation

[0014] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] like Figure 1 Figure 2 and Figure 3 As shown, an installation structure for a temperature-measuring thermistor of an induction cooker includes a metal housing 1 with an opening at the top, a high-temperature resistant insulating plate 2 at the opening of the metal housing 1, and a microcrystalline glass plate 3 on the top of the high-temperature resistant insulating plate 2. like Figure 2 and Figure 3As shown, a wire hole 4 is provided in the middle of the high temperature resistant insulation board 2, and a temperature measuring thermistor 5 is provided between the high temperature resistant insulation board 2 and the microcrystalline glass board 3 and is attached to the bottom of the microcrystalline glass board 3; both ends of the temperature measuring thermistor 5 are electrically connected to signal lines 6, which pass through the wire hole 4, extend into the bottom of the high temperature resistant insulation board 2, and are connected to the control board of the induction cooker. like Figure 2 and Figure 3 As shown, the wire hole 4 of the high-temperature resistant insulating board 2 is filled with sealant 7 for fixing the signal line 6.

[0016] In this embodiment, as Figure 3 As shown, the two signal lines 6 are twisted together to form a twisted pair. The twisted pair is connected to the control board of the induction cooker through the connector 8, and transmits the signal of the temperature measuring thermistor 5 to the control board.

[0017] In order to fix the microcrystalline glass plate 3 on the high-temperature resistant insulating board 2 and ensure the airtightness between the two, such as Figure 3 As shown, adhesive 9 is provided at the top edge of the high-temperature resistant insulation board 2, and the microcrystalline glass plate 3 is attached to the top of the high-temperature resistant insulation board 2 by sealant 7.

[0018] In this embodiment, both sealant 7 and adhesive 9 are glass sealant 7.

[0019] In this embodiment, the high-temperature resistant insulating board 2 is a high-temperature resistant mica sheet with a thickness of 0.6 mm, a dielectric strength of 635 V / MIL, and a maximum temperature resistance of 498 °C.

[0020] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A mounting structure for a thermistor for temperature measurement in an induction cooker, characterized in that: It includes a metal casing (1) with an opening at the top, a high-temperature resistant insulating plate (2) at the opening of the metal casing (1), and a microcrystalline glass plate (3) at the top of the high-temperature resistant insulating plate (2). The high-temperature resistant insulating board (2) has a wire hole (4) in the middle. A temperature-measuring thermistor (5) is provided between the high-temperature resistant insulating board (2) and the microcrystalline glass plate (3) and is attached to the bottom of the microcrystalline glass plate (3). Both ends of the temperature-measuring thermistor (5) are electrically connected to signal lines (6). The signal lines (6) pass through the wire hole (4), extend into the bottom of the high-temperature resistant insulating board (2), and are connected to the control board of the induction cooker. The wire hole (4) of the high-temperature resistant insulating board (2) is filled with sealant (7) for fixing the signal line (6).

2. The mounting structure for the temperature-measuring thermistor of an induction cooker according to claim 1, characterized in that: Two signal lines (6) are twisted together to form a twisted pair. The twisted pair is connected to the control board of the induction cooker through a connector (8) and transmits the signal of the temperature measuring thermistor (5) to the control board.

3. The mounting structure for the temperature-measuring thermistor of an induction cooker according to claim 1, characterized in that: The top edge of the high-temperature resistant insulation board (2) is provided with adhesive (9), and the microcrystalline glass plate (3) is attached to the top of the high-temperature resistant insulation board (2) by sealant (7).

4. The mounting structure for the temperature-measuring thermistor of an induction cooker according to claim 3, characterized in that: Both the sealant (7) and the adhesive (9) are glass sealants (7).

5. The mounting structure for the temperature-measuring thermistor of an induction cooker according to claim 1, characterized in that: The high-temperature resistant insulation board (2) is a high-temperature resistant mica sheet.

Images