CN220120261U - Temperature sensor for electromagnetic oven - Google Patents
Temperature sensor for electromagnetic oven Download PDFInfo
- Publication number
- CN220120261U CN220120261U CN202320799984.9U CN202320799984U CN220120261U CN 220120261 U CN220120261 U CN 220120261U CN 202320799984 U CN202320799984 U CN 202320799984U CN 220120261 U CN220120261 U CN 220120261U
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- Prior art keywords
- thermistor
- heat
- temperature sensor
- resistant sleeve
- wires
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 238000013021 overheating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a temperature sensor for an induction cooker, and relates to the technical field of temperature sensors. The utility model comprises a thermistor, two wires and a tube shell, wherein the two wires are fixedly connected with two ends of the thermistor respectively, the thermistor is positioned in the tube shell, and the two wires extend out of the tube shell; the heat-resistant sleeve is sleeved on the periphery of the thermistor and the periphery of the connection part of the thermistor and the lead, and the shell is sleeved on the periphery of the heat-resistant sleeve. According to the utility model, the first heat-resistant sleeve is arranged, the first heat-resistant sleeve is sleeved on the periphery of the thermistor and the periphery of the connection part of the thermistor and the lead, the tube shell is sleeved on the periphery of the first heat-resistant sleeve, and the open end of the tube shell is pressed into an M shape, so that the assembly is convenient; the first heat-resistant sleeve adopts the teflon sleeve, and the teflon sleeve has excellent dielectric property, chemical corrosion resistance, high temperature resistance, aging resistance, easiness in heat transfer and other excellent properties, and is high in reliability, and meanwhile, the detection precision of the thermistor is guaranteed.
Description
Technical Field
The utility model belongs to the technical field of temperature sensors, and particularly relates to a temperature sensor for an electromagnetic oven.
Background
The electromagnetic oven is a high-efficiency energy-saving kitchen ware, breaks open fire cooking mode, adopts the heating principle of magnetic field induction current, generates an alternating magnetic field through the component parts of the electronic circuit board, and when the bottom of the pan containing iron is placed on the pavement of the electromagnetic oven, the pan cuts alternating magnetic force lines to generate alternating current (namely vortex) at the metal part at the bottom of the pan; the Joule heating effect of the vortex current heats the conductor, thereby heating the bottom of the pan and achieving the purpose of cooking.
In order to quickly and accurately measure the temperature of the bottom of a pot, the traditional induction cooker is provided with a through hole in the middle of a panel of the induction cooker, and then a sensor component is arranged to directly extend out of the panel so as to measure the heat temperature of a pot positioned on the panel in real time; in order to better transfer temperature, the shell of the current temperature sensor adopts a metal shell. The basic structure is as follows: including wires, thermistors, sensor housings, etc.; the wire and the thermistor are encapsulated by insulating resin for insulating curing, and then the encapsulated and cured thermistor is centrally placed in the sensor shell for filling the insulating resin for curing, namely, the shell, the wire and the thermistor are filled by insulating resin in a twice encapsulation mode, so that the insulating protection effect is achieved. However, the sensor has complicated processing procedures and low production efficiency, and greatly improves the cost.
In addition, since the temperature of the induction cooker is generally 300 ℃ or higher in the case of dry heating or the like, and the thermistor is packaged with a resin, the resistance Wen Zhitong of the resin is generally 200 ℃ or lower. The temperature measurement and temperature control are carried out on the appliance for the electromagnetic oven, so that the safety protection of temperature sensing and temperature control cannot be realized in a dry burning state, and great potential safety hazards exist.
Disclosure of Invention
The utility model aims to provide a temperature sensor for an electromagnetic oven, which is characterized in that a first heat-resistant sleeve is arranged, the first heat-resistant sleeve is sleeved on the periphery of a thermistor and the periphery of the joint of the thermistor and a wire, a tube shell is sleeved on the periphery of the first heat-resistant sleeve, the assembly is convenient, the heat resistance is high, and the problems that the shell of the existing temperature sensor for the electromagnetic oven is complicated in processing procedure, low in production efficiency, low in temperature resistance value of the resin and high in potential safety hazard in a dry burning state are solved by filling the shell of the existing temperature sensor for the electromagnetic oven with the wire and the thermistor through an insulating resin in a two-time encapsulation mode.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a temperature sensor for an electromagnetic oven, which comprises a thermistor, two wires and a tube shell, wherein the two wires are fixedly connected with two ends of the thermistor respectively, the thermistor is positioned in the tube shell, and the two wires extend out of the tube shell. One end of the tube shell is provided with an opening, and the two wires are arranged side by side and jointly extend out of the opening. The heat-resistant shell is sleeved on the periphery of the thermistor and the periphery of the connection part of the thermistor and the lead, and the shell is sleeved on the periphery of the heat-resistant shell.
As a preferential technical scheme of the utility model, the two ends of the thermistor are provided with pins, one end pin of the thermistor is bent to be arranged side by side with the other end pin, and the two leads are respectively fixedly connected with the pins at the two ends of the thermistor.
As a preferred embodiment of the present utility model, the thermistor extends into the bottom of the package.
As a preferential technical scheme of the utility model, the two ends of the first heat-resistant sleeve extend out of the tube shell.
As a preferred technical scheme of the utility model, the first heat-resistant sleeve is a teflon sleeve.
As a preferred embodiment of the present utility model, the heat-resistant sleeve further comprises a second heat-resistant sleeve, wherein the second heat-resistant sleeve is sleeved on the peripheral sides of the parts of the two wires extending out of the tube shell.
As a preferential technical scheme of the utility model, the second heat-resistant sleeve adopts a glass fiber tube.
As a preferred technical solution of the present utility model, the open end of the tube shell is pressed into an "M" shape adapted to the shape of the two wires.
As a preferred technical scheme of the utility model, a flange plate for fixing the temperature sensor is fixedly connected to the periphery of the tube shell.
As a preferential technical scheme of the utility model, the flange plate is arranged perpendicular to the length direction of the tube shell.
The utility model has the following beneficial effects:
1. according to the utility model, the first heat-resistant sleeve and the second heat-resistant sleeve are arranged, the first heat-resistant sleeve is sleeved on the periphery of the thermistor and the periphery of the connection part of the thermistor and the lead, the tube shell is sleeved on the periphery of the first heat-resistant sleeve, and the opening end of the tube shell is pressed into an M shape, so that the assembly is convenient; the first heat-resistant sleeve is made of a teflon sleeve, and the teflon sleeve has excellent dielectric property, chemical corrosion resistance, high temperature resistance, high pressure resistance, no water absorption, no aging, easy heat transfer and other excellent properties, so that the detection precision of the thermistor is ensured; the second heat-resistant sleeve is made of glass fiber tubes which are sleeved on the peripheral sides of the parts, extending out of the tube shell, of the two wires, and the glass fiber tubes have excellent characteristics of fire resistance, heat insulation, flame retardance and the like and are high in reliability.
2. According to the utility model, the opening is arranged at one end of the tube shell, the thermistor stretches into the bottom of the tube shell, the flange plate is fixedly connected to the periphery of the tube shell, and after the tube shell is fixed through the flange plate, the bottom end of the tube shell stretches out of the panel of the induction cooker, so that the thermistor is closer to the surface of the cooker, and the temperature measurement is more accurate.
Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing an internal structure of a temperature sensor according to a first embodiment;
FIG. 2 is a schematic structural view of a thermistor;
FIG. 3 is an enlarged schematic view of a portion of FIG. 1 at A;
FIG. 4 is a schematic diagram of a temperature sensor according to the first embodiment;
fig. 5 is a schematic structural view of the tube after the open ends are pressed together;
FIG. 6 is a schematic diagram of a temperature sensor in a second embodiment;
FIG. 7 is a schematic diagram of a temperature sensor in a third embodiment;
in the drawings, the list of components represented by the various numbers is as follows:
1-thermistor, 101-pin, 2-wire, 3-tube shell, 301-flange, 4-first heat-resistant pipe sleeve, 5-second heat-resistant pipe sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Example 1
Referring to fig. 1-4, the present embodiment provides a temperature sensor for an induction cooker, which includes a thermistor 1, two wires 2 and a tube 3. Pins 101 are provided at both ends of the thermistor 1, and one end pin 101 is bent to be arranged side by side with the other end pin 101. The two leads 2 are welded and fixed with the two ends of the thermistor 1 respectively. After fixing, the first heat-resistant sleeve 4 is sleeved at the thermistor 1, the first heat-resistant sleeve 4 is moved to a position which is approximately centered on the thermistor 1, the two ends of the first heat-resistant sleeve 4 after being folded in half are ensured to be level, and the difference of the lengths of the two ends is controlled to be less than 1mm. The first heat-resistant sleeve 4 is a teflon sleeve, and the teflon sleeve has excellent dielectric properties, chemical corrosion resistance, high temperature resistance, high pressure resistance, no water absorption, no aging, easy heat transfer and other excellent properties, so that the detection precision of the thermistor is ensured. Furthermore, the length of the first heat-resistant sleeve 4 should cover the junction of the thermistor 1 and the wire 2. The first heat-resistant sleeve 4 may be fastened to the thermistor 1 with a copper tape having good thermal conductivity.
Referring to fig. 4 and 5, after the above operation is completed, one end of the thermistor 1 is inserted into the package 3. One end of the tube shell 3 is provided with an opening, and one end of the thermistor 1 is plugged into the tube shell and extends into the bottom of the tube shell 3. Two wires 2 are arranged side by side and jointly protrude from the opening of the envelope 3. The tube housing 3 is fitted around the circumference of the first heat-resistant jacket 4, and both ends of the first heat-resistant jacket 4 protrude from the tube housing 3. And finally, the opening end of the tube shell 3 is pressed into an M-shaped structure matched with the shape of the two wires 2 by using a pressing clamp, so that the processing and manufacturing of the temperature sensor are finished, and the operation is simple.
Example two
Based on the first embodiment, the second embodiment is different in that:
referring to fig. 6, a second heat-resistant sleeve 5 is further sleeved on the peripheral side of the portion of the two wires 2 extending out of the tube shell 3, and the second heat-resistant sleeve 5 is a glass fiber tube. The glass fiber tube has excellent characteristics of fire prevention, heat insulation, flame retardance and the like, and is high in reliability, and the wires 2 are prevented from aging or catching fire due to overheating.
Example III
Based on the second embodiment, the third embodiment is different in that:
referring to fig. 7, a flange 301 for fixing a temperature sensor is fixedly connected to a peripheral side of the housing 3, and the flange 301 is perpendicular to a length direction of the housing 3. After the tube shell 3 is fixed through the flange 301, the bottom end of the tube shell 3 extends out of the panel of the induction cooker, so that the thermistor 1 is closer to the surface of the cooker, the temperature measurement is more accurate, and the disassembly and assembly are convenient.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The temperature sensor for the induction cooker comprises a thermistor (1), two wires (2) and a tube shell (3), wherein the two wires (2) are fixedly connected with two ends of the thermistor (1) respectively, the thermistor (1) is positioned in the tube shell (3), and the two wires (2) extend out of the tube shell (3); the method is characterized in that:
one end of the tube shell (3) is provided with an opening, and the two wires (2) are arranged side by side and jointly extend out of the opening;
the heat-resistant thermistor is characterized by further comprising a first heat-resistant sleeve (4), wherein the first heat-resistant sleeve (4) is sleeved on the periphery of the thermistor (1) and the periphery of the connection part of the thermistor (1) and the lead (2), and the tube shell (3) is sleeved on the periphery of the first heat-resistant sleeve (4).
2. The temperature sensor for induction cookers according to claim 1, wherein the thermistor (1) has pins (101) at both ends, one end pin (101) of the thermistor is bent to be arranged side by side with the other end pin (101), and two wires (2) are fixedly connected with the pins (101) at both ends of the thermistor (1), respectively.
3. A temperature sensor for induction cookers according to claim 2, characterised in that the thermistor (1) protrudes into the bottom of the envelope (3).
4. Temperature sensor for induction cookers according to claim 1, characterized in that the two ends of the first heat-resistant sleeve (4) protrude beyond the envelope (3).
5. The temperature sensor for induction cookers according to claim 4, characterized in that the first heat-resistant sleeve (4) is a teflon sleeve.
6. The temperature sensor for induction cookers according to claim 5, further comprising a second heat-resistant sleeve (5), wherein the second heat-resistant sleeve (5) is fitted around the peripheral side of the portion of the two wires (2) extending out of the tube housing (3).
7. The temperature sensor for induction cookers according to claim 6, characterized in that the second heat-resistant sleeve (5) is a glass fiber tube.
8. Temperature sensor for induction cookers according to any of claims 1-7, characterized in that the open end of the envelope (3) is pressed into an "M" shape adapted to the shape of the two wires (2).
9. The temperature sensor for induction cookers according to claim 8, characterized in that a flange (301) for fixing the temperature sensor is fixedly connected to the peripheral side of the tube housing (3).
10. The temperature sensor for induction cookers according to claim 9, characterized in that the flange (301) is arranged perpendicular to the length direction of the envelope (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320799984.9U CN220120261U (en) | 2023-04-12 | 2023-04-12 | Temperature sensor for electromagnetic oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320799984.9U CN220120261U (en) | 2023-04-12 | 2023-04-12 | Temperature sensor for electromagnetic oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220120261U true CN220120261U (en) | 2023-12-01 |
Family
ID=88914929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320799984.9U Active CN220120261U (en) | 2023-04-12 | 2023-04-12 | Temperature sensor for electromagnetic oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220120261U (en) |
-
2023
- 2023-04-12 CN CN202320799984.9U patent/CN220120261U/en active Active
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