CN218545899U

CN218545899U - Induction cooking appliance

Info

Publication number: CN218545899U
Application number: CN202223097839.0U
Authority: CN
Inventors: 管兴勇
Original assignee: Hangzhou Yue Magnetic Technology Co ltd
Current assignee: Hangzhou Yue Magnetic Technology Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-02-28
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses an induction cooking appliance, which comprises a cooking main body, an infrared temperature measurement module and a shading assembly, wherein the cooking main body is provided with a microcrystal panel for placing a cooker and a heating wire coil arranged below the microcrystal panel; the infrared temperature measuring module is arranged in the cooking main body and comprises an indium gallium arsenic infrared detecting head and a circuit board, the indium gallium arsenic infrared detecting head is electrically connected with the circuit board and used for receiving infrared signals emitted by a cooker and outputting electric signals to the circuit board, and the circuit board is electrically connected to a control component of the cooking main body; the light shading component is arranged on the cooking main body, is used for shading interference light around the indium gallium arsenic infrared detector and is provided with a light through hole for receiving infrared light. The technical scheme of the utility model the influence of environmental disturbance light can effectively be reduced, the temperature measurement precision of infrared temperature measurement module has been promoted.

Description

Induction cooking appliance

Technical Field

The utility model relates to a cooking utensil technical field, in particular to response cooking utensil.

Background

The existing temperature measurement technology represents a product with a thermopile temperature measurement technology, and a thermopile detector can detect infrared rays with the wavelength of more than 3 mu m and basically has no response to the infrared rays with the wavelength of less than 3 mu m. The infrared-transmitting band of the microcrystal panel used by the induction cooking appliance, such as an induction cooker, is less than 2.8 mu m, so that the thermopile detector cannot be basically sensed by the infrared rays transmitted by the microcrystal glass. In the prior art, an infrared temperature measuring induction cooker with an indium gallium arsenic sensor as an infrared detector is disclosed, and the temperature measuring and controlling precision of the induction cooker can be improved by matching a proper infrared probe according to the characteristics of microcrystalline glass.

However, in the cooking process, due to the fact that a cookware is improperly placed and is greatly deviated from a cooking heating area range or the cookware is uneven in bottom, deformed and warped, and the like, a large amount of environmental interference light is transmitted and transmitted to the inside of the cookware through a microcrystal panel of the induction cooker and a related ventilation light leakage structure of an induction cooker shell, and is finally received by an indium gallium arsenic infrared detector, and a temperature measurement error is generated; the environmental interference light includes sunlight, halogen lamps and other interference light sources containing a large number of infrared bands.

Meanwhile, in the process that the temperature measuring module receives the cookware infrared light transmitted by the microcrystal panel of the induction cooker, due to the linear propagation characteristic of light, in order to ensure that the indium gallium arsenic infrared detector in the temperature measuring module receives better light intensity, the upper part of the indium gallium arsenic infrared detector cannot have a structure to shield the light.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing an induction cooking utensil aims at solving current induction cooking utensil, can not effectively eliminate the technical problem of the interference of ambient disturbance light to infrared detector temperature measurement production.

In order to achieve the above object, the present invention provides an induction cooking device, which includes:

the cooking device comprises a cooking body, a pot and a heating wire coil, wherein the cooking body is provided with a microcrystalline panel for placing a pot and the heating wire coil arranged below the microcrystalline panel;

the infrared temperature measuring module is arranged in the cooking main body and comprises an indium gallium arsenic infrared detecting head and a circuit board, the indium gallium arsenic infrared detecting head is electrically connected with the circuit board and used for receiving infrared rays emitted from a cooker and outputting an electric signal to the circuit board, and the circuit board is electrically connected to a control component of the cooking main body; and the number of the first and second groups,

and the shading component is arranged on the cooking main body, is used for shading the interference light around the indium gallium arsenic infrared detector and is provided with a light through hole for receiving infrared light.

Optionally, the light shielding assembly includes a light shielding plate in a sheet shape, and the light through hole is formed in the light shielding plate.

Optionally, the shadow mask is disposed between the microcrystalline panel and the heating coil.

Optionally, the shadow mask is a printed ink provided on the microcrystalline panel.

Optionally, the mask is a mica sheet.

Optionally, the heating wire coil is provided with a through hole, the light through hole is opposite to the through hole, and the indium gallium arsenic infrared detector is arranged in the through hole.

Optionally, the light shielding assembly comprises a light shielding cylinder, and the light shielding cylinder is arranged in the through hole and sleeved on the periphery of the indium gallium arsenic infrared probe.

Optionally, the light shielding cylinder is integrally formed in the through hole of the heating wire coil.

Optionally, the material of the shading cylinder is light-tight plastic.

The technical scheme of the utility model in, through setting up shading component in indium gallium arsenic infrared detecting head top to the logical unthreaded hole through the design among the shading component accepts the infrared light, can effectively reduce the influence of environmental disturbance light, has promoted infrared temperature measurement module's temperature measurement precision, and can save the light filter, reduces the complete machine cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a cross-sectional view of an embodiment of an induction cooking appliance provided by the present invention;

FIG. 2 is a schematic view of the induction cooking appliance of FIG. 1 exposed to ambient disturbance light

Fig. 3 is a schematic plan view of an induction cooking device according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of the infrared thermometry module of fig. 1.

In the figure: the induction cooking utensil-100, the cooking body-1, the microcrystal panel-11, the heating wire coil-12, the through hole-121, the control component-13, the infrared temperature measuring module-2, the indium gallium arsenic infrared detector head-21, the circuit board-22, the light shading component-3, the light shading plate-3 a, the light shading cylinder-3 b and the light through hole-31.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For a better description and illustration of embodiments of the application, reference may be made to one or more of the drawings, but additional details or examples for describing the drawings should not be construed as limiting the scope of any of the inventive concepts of the present application, the presently described embodiments, or the preferred versions.

In the description of the present invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate the positional relationship based on the positional relationship shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device to which the reference is made must have a specific orientation or be operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Referring to fig. 2, in the cooking process, due to the fact that the cookware is improperly placed and the cooking heating area is greatly deviated, or the bottom of the cookware is uneven and deformed and warped, a large amount of environmental interference light is transmitted and transmitted to the inside of the cookware through the microcrystalline panel of the induction cooker and the related ventilation and light leakage structure of the induction cooker shell, and is finally received by the indium gallium arsenic infrared detector, and a temperature measurement error is generated.

In view of this, the present invention provides an induction cooking device, fig. 1-4 show an embodiment of the induction cooking device, please refer to fig. 1-4, the induction cooking device 100 includes a cooking body 1, an infrared temperature measuring module 2 and a light shielding assembly 3.

Referring to fig. 1, the cooking body 1, that is, an appliance body for heating a pot, includes a housing and the like, and the cooking body 1 has a microcrystal panel 11 for placing a pot thereon and a heating wire coil 12 disposed below the microcrystal panel 11. Of course, the microcrystal panel 11 and the shell of the cooking main body 1 are integrated, and the heating wire coil 12 is arranged in the cooking main body 1. The infrared temperature measuring module 2 comprises an indium gallium arsenic infrared detecting head 21 and a circuit board 22, the indium gallium arsenic infrared detecting head 21 is electrically connected with the circuit board 22 and is used for receiving infrared signals emitted from a cooker and outputting electric signals to the circuit board 22, the circuit board 22 amplifies weak electric signals output by the indium gallium arsenic infrared detecting head 21 and converts the weak electric signals into analog signals which can be identified by a single chip microcomputer or directly into digital temperature signals, and therefore temperature measurement of the cooker is completed; the circuit board 22 is electrically connected to the control component 13 of the cooking body 1 to transmit temperature data out, control the work of the heating wire coil 12 and prevent overheating of the cookware; it should be noted that the infrared temperature measurement module 2 is installed inside the cooking body 1, and the indium gallium arsenic infrared probe 21 is disposed near the microcrystalline panel 11. The light shielding component 3 is also arranged inside the cooking body 1 and located at the periphery (above or around) of the indium gallium arsenic infrared detector 21, and is used for shielding interference light and has a light through hole 31 for enabling the indium gallium arsenic infrared detector 21 to receive infrared light, it should be noted that the light shielding component 3 is made of a material with a light shielding function, such as high temperature resistant light-tight plastic or mica sheet, and the shape of the light shielding component 3 includes a sheet structure or a cylindrical structure or a combination of the two; the mounting may be in fixed engagement with a structural member within the cooking body 1.

The technical scheme of the utility model in, through setting up shading component 3 in indium gallium arsenic infrared detecting head 21 top to receive the infrared light through the logical unthreaded hole 31 of the design among the shading component 3, can effectively reduce the influence of environmental disturbance light, promoted infrared temperature measurement module 2's temperature measurement precision, and cooking utensil's inside cooperation adopts physical structure shading scheme, and design and installation are simple, and can save the light filter, reduce the complete machine cost.

Referring to fig. 1, in an embodiment of the present invention, the light shielding assembly 3 includes a light shielding plate 3a in a sheet shape, and the light shielding plate 3a is made of a high temperature resistant opaque plastic or mica sheet. The shape of the light shielding plate 3a is adapted to the heating wire coil 12 to shield the environmental disturbance light transmitted through the microchip panel 11 and the like. In addition, the light hole 31 is formed on the light shielding plate 3a, so that the indium gallium arsenic infrared detector 21 receives infrared rays emitted from a pot. The shape of the heating wire coil 12 is adaptively adjusted according to the power level or the installation structure, and most of the heating wire coils on the market are disc-shaped, and accordingly, the light shielding plate 3a is also disc-shaped.

Further, the light shielding plate 3a is arranged between the microcrystalline panel 11 and the heating wire coil 12, so that interference light can be well shielded; the area of the light shielding plate 3a is larger than that of the cooking heating area on the micro crystal panel 11, so as to completely shield the interference light transmitted by the micro crystal panel 11. It should be noted that the light shielding plate 3a may be mounted in a manner of being fixedly connected to a structural member on the heating wire coil, such as clamping, welding, and screwing.

In an embodiment of the present invention, the light shielding plate 3a is a mica sheet, which is generally opaque and has thermal resistance function of insulation and low loss, and is also a good black body, so as to improve the temperature measurement accuracy of the infrared temperature measurement module 2.

Referring to fig. 1 and 4, in an embodiment of the present invention, a through hole 121 is disposed at a center of the heating wire coil 12, the light passing hole 31 is disposed opposite to the through hole 121, and the indium gallium arsenic infrared detector 21 is disposed in the through hole 121. The indium gallium arsenic infrared detecting head 21 is arranged at the through hole 121 in the center of the heating wire coil 12, so that the acceptance rate of infrared rays emitted by a cooker can be improved, and the interference of ambient light is reduced under the shielding of the heating wire coil 12. Of course, in other embodiments, the through hole 121 may be opened at other positions of the heating wire coil 12, but is most preferably arranged at the center in consideration of the heat generated by the heating wire coil 12 during operation.

In addition, the infrared temperature measuring module 2 further includes a housing made of a metal material with low magnetic permeability, such as aluminum, aluminum alloy, copper alloy, and the like, for shielding signal interference caused by an alternating magnetic field generated by the heating wire coil 12 during the operation of the induction cooking appliance 100.

Referring to fig. 1 and 4, in an embodiment of the present invention, the light shielding assembly 3 includes a light shielding tube 3b, the light shielding tube 3b is disposed in the through hole 121, i.e. installed at the center of the heating wire coil 12, and is sleeved on the periphery of the ingaas infrared detecting head 21 to further shield the ambient interference light entering the cooking utensil through the opening of the heat dissipation and ventilation structure. It should be noted that the material of the light shielding cylinder 3b is opaque plastic, and other opaque materials can be selected, which are not described in detail herein. In other embodiments of the present invention, the light-shielding cylinder and the heating wire coil are integrally formed, that is, the hole in the light-shielding cylinder is a through hole.

Of course, the embodiment of the present invention is not limited thereto, and the light shielding assembly 3 further includes a light-tight barrier layer, such as light-tight ink, disposed on the outer surface or the inner surface or both the outer and inner surfaces of the microcrystalline panel 11; alternatively, the shadow mask 3a is replaced with opaque ink.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. An induction cooking appliance, comprising:

the cooking body (1) is provided with a microcrystalline panel (11) for placing a pot and a heating wire coil (12) arranged below the microcrystalline panel (11);

the infrared temperature measuring module (2) is arranged inside the cooking main body (1), the infrared temperature measuring module (2) comprises an indium gallium arsenic infrared detecting head (21) and a circuit board (22), the indium gallium arsenic infrared detecting head (21) is electrically connected with the circuit board (22) and used for receiving infrared rays emitted by a cooker and outputting an electric signal to the circuit board (22), and the circuit board (22) is electrically connected with a control component of the cooking main body (1); and the number of the first and second groups,

and the shading component (3) is arranged on the cooking body (1) and is used for shading the interference light around the indium gallium arsenic infrared probe (21) and is provided with a light through hole (31) for receiving the infrared light.

2. The induction cooking appliance according to claim 1, wherein the light shield assembly (3) comprises a light shield plate (3 a) in the shape of a sheet, and the light passing hole (31) is opened on the light shield plate (3 a).

3. The induction cooking appliance according to claim 2, characterized in that the shutter (3 a) is provided between the microcrystalline panel (11) and the heating coil (12).

4. The induction cooking appliance according to claim 2, wherein the light shield (3 a) is a mica sheet.

5. The induction cooking appliance according to claim 2, wherein the shadow mask (3 a) is a printed ink provided on the micro crystal panel (11).

6. The induction cooking appliance according to claim 1 or 2, wherein the heating coil (12) is provided with a through hole (121), the light through hole (31) is arranged opposite to the through hole (121), and the indium gallium arsenic infrared probe (21) is located in the through hole (121).

7. The induction cooking appliance according to claim 6, wherein the light shielding assembly (3) comprises a light shielding cylinder (3 b), and the light shielding cylinder (3 b) is disposed in the through hole (121) and sleeved on the periphery of the InGaAs infrared probe (21).

8. The induction cooking appliance according to claim 7, wherein the shade cylinder (3 b) is integrally formed with the through hole (121) of the heating coil (12).

9. The induction cooking appliance according to claim 8, wherein the shade cylinder (3 b) is made of opaque plastic.