Induction cooking utensil and shading structure

Abstract

The utility model discloses an induction cooking utensil and a shading structure. The induction cooking utensil comprises a cooking body, an infrared temperature measurement module and the shading structure. The cooking main body is provided with a glass panel for placing cookware and a heating wire coil arranged below the glass panel; the infrared temperature measurement module comprises an indium gallium arsenic infrared detection head and a circuit board, and the indium gallium arsenic infrared detection head is installed on the circuit board and electrically connected with the circuit board; the infrared temperature measurement module is installed on the shading structure and used for shielding ambient light for replacing the indium gallium arsenic infrared detection head, and the shading structure is provided with a fixing part connected with the heating wire coil. According to the technical scheme, the infrared temperature measurement module is installed on the shading structure, the shading structure is connected to the heating wire coil through the fixing part of the shading structure, so that the infrared temperature measurement module can be installed on the induction cooking utensil, when an induction cooking utensil manufacturer applies the infrared temperature measurement module, a coil panel and a whole machine shell do not need to be independently opened, and the production cost is reduced. And the installation can be realized only by the original structure.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking appliances, and particularly relates to an induction cooking appliance and a light-shielding structure. Background Art

[0002] Most of the existing induction cookers are equipped with an infrared temperature measurement module, and there are two installation schemes:

[0003] 1. Installed on the coil plate;

[0004] 2. Installed on the lower cover of the induction cooker.

[0005] Whichever of the above schemes requires structural support, that is, it is necessary to re-open the coil plate or the lower cover mold; for the whole machine manufacturer, the investment is relatively large and the versatility is poor.

[0006] Patent CN221099897U discloses an induction cooking appliance, including a cooking main body, an infrared temperature measurement module, and a light-shielding body with a light channel. This technical solution can better solve the influence of ambient light on the detector. However, in this technical solution, the function of the light-shielding body is only for light shielding and preventing foreign objects such as cockroaches, and does not solve the installation problem of the infrared temperature measurement module. Summary of the Utility Model

[0007] The main purpose of the utility model is to propose an induction cooking appliance and a light-shielding structure, aiming to solve the technical problem of lacking structural support when the existing infrared temperature measurement module is installed in the induction cooker.

[0008] To achieve the above object, the induction cooking appliance proposed by the utility model includes:

[0009] A cooking main body, having a glass panel for placing a cookware and a heating coil plate disposed below the glass panel;

[0010] An infrared temperature measurement module, including an indium gallium arsenide infrared detector head and a circuit board, the indium gallium arsenide infrared detector head is installed on the circuit board and electrically connected thereto; and,

[0011] A light-shielding structure, the infrared temperature measurement module is installed in the light-shielding structure for shielding ambient light for the indium gallium arsenide infrared detector head, and the light-shielding structure is provided with a fixing portion connected to the heating coil plate.

[0012] Optionally, the light-shielding structure is provided with a socket portion adapted to the outer contour of the infrared temperature measurement module, and the infrared temperature measurement module is disposed in the socket portion.

[0013] Optionally, the socket portion has a socket, and the circuit board of the infrared temperature measurement module is inserted into the socket.

[0014] Optionally, the heating wire coil is provided with an opening, and the outer contour of the fixing part is adapted to the opening.

[0015] Optionally, the light-shielding structure is formed with a light channel, and the first opening end of the light channel is closely attached to the glass panel.

[0016] Optionally, the infrared temperature measurement module includes a housing that at least covers part of the circuit board. The housing has a through hole, and the photosensitive surface of the indium gallium arsenide infrared detection head faces the through hole.

[0017] Optionally, the second opening end of the light channel is directly opposite to the through hole and is closely attached to the housing of the infrared temperature measurement module.

[0018] Optionally, the light channel extends along its central axis, and the diameter of the first opening end is larger than that of the second opening end.

[0019] Optionally, the material of the light-shielding structure is an opaque elastic material.

[0020] The present utility model also provides a light-shielding structure. The light-shielding structure is provided with a fixing part connected to the heating wire coil in the induction cooking appliance, and the light-shielding structure is provided with a socket part adapted to the outer contour of the infrared temperature measurement module in the induction cooking appliance. The infrared temperature measurement module is arranged in the socket part and is used to block ambient light for the indium gallium arsenide infrared detection head.

[0021] In the technical solution of the present utility model, by installing the infrared temperature measurement module on the light-shielding structure, and connecting the light-shielding structure to the heating wire coil through its fixing part, the infrared temperature measurement module can be installed on the induction cooking appliance. With the light-shielding structure designed in this solution, when the induction cooking appliance manufacturer applies this infrared temperature measurement module, the coil disk and the whole machine housing do not need to be separately molded, and can be installed only relying on the original structure. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0023] Figure 1 It is a cross-sectional schematic view of an embodiment of the induction cooking appliance provided by the present utility model;

[0024] Figure 2 It is Figure 1 a three-dimensional structure diagram of the heating wire coil in

[0025] Figure 3 It is Figure 1Stereoscopic structure diagram of a part of [the object];

[0026] Figure 4 is Figure 3 Stereoscopic structure diagram from another perspective;

[0027] Figure 5 is Figure 3 Exploded view of [the object];

[0028] Figure 6 is Figure 3 Exploded view of [the object] with a thermal-sensitive component;

[0029] Figure 7 is Figure 1 Top view of a part of [the object];

[0030] Figure 8 is Figure 7 Cross-sectional view of [the object] at the A-A section;

[0031] Figure 9 is Figure 7 Cross-sectional view of [the object] at the A-A section when installing the thermal-sensitive component;

[0032] Figure 10 is Figure 1 Top view of a part of [the object];

[0033] Figure 11 is Figure 10 Cross-sectional view of [the object] at the B-B section;

[0034] Figure 12 is Figure 6 Cross-sectional view of a part of [the object].

[0035] In the figure: induction cooking appliance - 100, cooking main body - 1, glass panel - 11, heating wire coil - 12, opening - 12a, infrared temperature measurement module - 2, indium gallium arsenide infrared detection head - 21, circuit board - 22, housing - 23, through hole - 23a, light shielding structure - 3, light channel - 3a, fixing part - 31, socket part - 32, socket 32a, first open end - 33, second open end - 34, cookware - 200.

[0036] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0038] To better describe and illustrate the embodiments of the present application, one or more drawings may be referred to. However, the additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the utility model creations of the present application, the currently described embodiments, or the preferred modes.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0041] Patent CN221099897U discloses an induction cooking appliance, including a cooking main body, an infrared temperature measurement module, and a light-shielding body with a light channel. This technical solution can better solve the influence of ambient light on the detector. However, in this technical solution, the function of the light-shielding body is only to block light and prevent foreign objects such as cockroaches, and does not solve the installation problem of the infrared temperature measurement module.

[0042] In view of this, the present utility model provides an induction cooking appliance, Figures 1-12 For an embodiment of the induction cooking appliance of the present utility model, please refer to Figures 1-12 , the induction cooking appliance 100 includes a cooking main body 1, an infrared temperature measurement module 2, and a light-shielding structure 3.

[0043] Specifically, the cooking main body 1 includes the entire cooking appliance housing, the upper surface of which has a glass panel 11 for placing the cookware 200, and inside which there is a heating wire coil 12 located below the glass panel 11. During the operation of the heating wire coil 12, the cookware 200 is affected by the alternating magnetic field generated by it, and an induction heating phenomenon occurs in the bottom area of the cookware, thereby generating infrared light. The infrared light is emitted and propagated into the interior of the cooking appliance 100 through the glass panel 11; the infrared temperature measurement module 2 includes an indium gallium arsenide infrared detection head 21 and a circuit board 22. The indium gallium arsenide infrared detection head 21 is installed on the circuit board 22 and is electrically connected to it. The infrared light emitted by the cookware 200 is received by the photodiode in the detection head 21 and converted into an electrical signal to the circuit board 22, and the temperature signal is obtained through the signal processing circuit of the circuit board 22; the infrared temperature measurement module 2 is installed in the light-shielding structure 3, which is used to shield the indium gallium arsenide infrared detection head 21 from ambient interference light (the ambient interference light includes but is not limited to sunlight, halogen lamps and other interference light sources containing a large amount of infrared bands, as well as LED light sources containing a small amount of infrared bands). The light-shielding structure 3 is provided with a fixing part 31 connected to the heating wire coil 12 to install it in the cooking main body 1. It should be understood that the heating wire coil 12 has a skeleton for winding the coil, and the fixing part 31 can be connected to the skeleton by means of snap connection, bonding, interference fit and screw fit to fix the light-shielding structure 3. In addition, it should be noted that most of the glass panels 11 on the market at present are microcrystalline panels and borosilicate glass, which have the characteristic of high temperature resistance; there is also a control component in the cooking main body 1 that is electrically connected to the circuit board 22 and the heating wire coil 12 to transmit the temperature signal and adjust the heating power.

[0044] In the technical solution of the present utility model, by installing the infrared temperature measurement module 2 in the light-shielding structure 3, and the light-shielding structure is connected to the heating wire coil 12 through its fixing part 31, the infrared temperature measurement module 2 can be installed on the induction cooking appliance 100. In the designed light-shielding structure 3 of this solution, when the manufacturer of the induction cooking appliance 100 applies this infrared temperature measurement module 2, the coil disk and the whole machine housing 23 do not need to be separately molded, and can be installed only by the original structure.

[0045] To install the infrared temperature measurement module 2 on the light-shielding structure 3, please refer to Figures 3-12 , in an embodiment of the present utility model, the light-shielding structure 3 is provided with a socket part 32 adapted to the outer contour of the infrared temperature measurement module 2. Specifically, if the infrared temperature measurement module 2 has a square structure, the socket part 32 is a square sleeve, and the infrared temperature measurement module 2 is accommodated in the sleeve, and the infrared temperature measurement module 2 can be fixed by means of bonding, snap connection, etc.

[0046] Furthermore, to prevent the infrared temperature measurement module 2 from falling off, please refer to Figures 3-12, in an embodiment of the present utility model, the socket part 32 has a socket 32a which is opened on the side wall of the square sleeve. The circuit board 22 of the infrared temperature measurement module 2 is provided with an outer protrusion which is inserted into the socket 32a through the outer protrusion, so that the infrared temperature measurement module 2 is fixedly installed in the socket part 32 of the light shielding structure 3.

[0047] To connect the light shielding structure 3 to the heating wire coil 12, please refer to Figure 2 , Figure 7 , Figure 8 and Figure 9 , in an embodiment of the present utility model, an opening 12a is provided at the center of the skeleton of the heating wire coil 12. The outer contour of the fixing part 31 is adapted to the opening 12a, so that the light shielding structure 3 is inserted into the opening 12a. It should be understood that the heating wire coils 12 of some manufacturers are designed with a central opening 12a. Preferably, the outer contour of the fixing part 31 is cylindrical and the opening 12a is circular for easy installation.

[0048] To enable the infrared light emitted by the cookware 200 to be received by the photosensitive surface in the indium gallium arsenide infrared detection head 21, please refer to Figures 3 to 6 and Figure 11 , 12 , in an embodiment of the present utility model, the light shielding structure 3 is formed with a light channel 3a which extends from one end of the light shielding structure 3 to the socket part 32. The first opening end 33 of the light channel 3a is close to the glass panel 11 (or the distance from the glass panel 11 < 2 mm), that is, the top end of the light shielding structure 3 is close to the glass panel 11. At the same time, the glass panel 11 and the heating wire coil 12 limit the axial movement of the light shielding structure 3.

[0049] To better prevent ambient light from interfering with the indium gallium arsenide infrared detection head 21, please refer to Figure 5 , 6 and Figures 8 to 11 , in an embodiment of the present utility model, the infrared temperature measurement module 2 includes a housing 23 covering a part of the circuit board 22. The housing 23 has a through hole 23a. The photosensitive surface of the indium gallium arsenide infrared detection head 21 faces the through hole 23a. The photosensitive surface is inside the housing 23, and the housing 23 can further block the entry of ambient light.

[0050] Furthermore, the material of the housing 23 is preferably a metal material with a low magnetic permeability, such as aluminum, aluminum alloy, copper, copper alloy, etc., which is used to shield the signal interference caused by the alternating magnetic field generated by the heating coil during the operation of the cooking appliance 100. If the distance between the infrared temperature measurement module 2 and the heating coil is relatively far and the magnetic field generated by the heating coil passes through less of the infrared temperature measurement module 2, the housing 23 can also be a plastic part or directly removed.

[0051] To better shield the ambient light for the optical channel 3a, please refer to Figure 5 , Figure 6 and Figures 8 to 11 . In an embodiment of the present utility model, the second opening end 34 of the optical channel 3a faces the through hole 23a and is closely attached to the outer shell 23 of the infrared temperature measurement module 2.

[0052] Furthermore, to enable the photosensitive surface of the indium gallium arsenide infrared detector head 21 to receive the infrared light emitted from the bottom of the cookware 200 over a large area, please refer to Figure 11 . In an embodiment of the present utility model, the optical channel 3a extends along its central axis, and the diameter of its first opening end 33 is larger than that of the second opening end 34, so that more infrared light can be received. Of course, the implementation manner of the present utility model is not limited thereto, and the optical channel 3a can also be set as a columnar shape, such as a cylindrical shape, etc.

[0053] To prevent the light-shielding structure 3 itself from transmitting light, please refer to Figure 1 and Figure 8 . In some embodiments of the present utility model, the material of the light-shielding structure 3 is an opaque elastic material, which can be squeezed so that the first opening end 33 of its optical channel 3a is closely attached to the glass panel 11, and the second opening end 34 of the optical channel 3a is closely attached to the outer shell 23 of the infrared temperature measurement module 2, forming a relatively sealed space. It is very difficult for bugs to enter this space, and it is also very difficult for oil stains, etc. to enter this space, effectively preventing foreign matters such as bugs and oil stains from covering the detector and causing attenuation of the infrared signal.

[0054] In addition, the elastic material makes it easier to install the infrared temperature measurement module 2 on the socket part 32 of the light-shielding structure 3. Among them, the light-shielding structure 3 preferably uses a temperature-resistant material with certain deformation characteristics such as silica gel, rubber, etc.; and the two ends of the light-shielding structure 3 are large and the middle is small. During installation, first squeeze and deform one end of the light-shielding structure 3 and insert it into the central opening 12a of the heating wire coil 12, so that the opening 12a of the heating wire coil 12 cooperates with the neck of the light-shielding structure 3. After the light-shielding structure 3 unfolds, a relatively good fixation is formed between the heating wire coil 12 and the light-shielding structure 3.

[0055] It should be noted that the light-shielding structure 3 is integrally injection-molded and has two upper and lower opening 12a cavities. The upper opening 12a cavity is used to form the optical channel 3a, and the lower opening 12a cavity is used for cooperative installation with the infrared temperature measurement module 2.

[0056] Please refer to Figure 6 , Figure 9 and Figure 12, in another embodiment of the present utility model, a thermal component may further be provided on the light-shielding structure 3. The thermal component is first installed on the light-shielding structure 3, and then the thermal component is electrically connected to the control system of the cooking appliance 100 or connected to the infrared temperature measurement module 2. Due to the elastic characteristics of the light-shielding structure 3, the thermal component can be in good contact with the panel, and thus the traditional thermal resistance temperature measurement solution can still be retained. During the product certification process, separate software evaluation tests are not required, which can improve the project progress and reduce cost investment.

[0057] The present utility model also proposes the above-mentioned light-shielding structure. Please refer to Figure 1 , the light-shielding structure 3 is provided with a fixing portion 31 connected to the heating wire coil 12 in the induction cooking appliance 100, and the light-shielding structure 3 is further provided with a socket portion 32 adapted to the outer contour of the infrared temperature measurement module 2 in the induction cooking appliance 100. The infrared temperature measurement module 2 is disposed in the socket portion 32 and is used to shield the ambient light for its indium gallium arsenide infrared detection head 21.

[0058] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0059] The above embodiments only represent several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An induction cooking appliance, characterized in that, Comprising: A cooking main body (1), having a glass panel (11) for placing a cooking pot (200) and a heating wire coil (12) provided below the glass panel (11); An infrared temperature measurement module (2), including an indium gallium arsenide infrared detection head (21) and a circuit board (22), the indium gallium arsenide infrared detection head (21) being mounted on the circuit board (22) and electrically connected thereto; and, A light shielding structure (3), the infrared temperature measurement module (2) being mounted on the light shielding structure (3) for shielding ambient light for the indium gallium arsenide infrared detection head (21), the light shielding structure (3) having a fixing portion (31) connected to the heating wire coil (12).

2. The induction cooking appliance according to claim 1, wherein, The light shielding structure (3) has a socket portion (32) adapted to the outer contour of the infrared temperature measurement module (2), and the infrared temperature measurement module (2) is disposed in the socket portion (32).

3. The induction cooking appliance according to claim 2, wherein, The socket portion (32) has a socket opening (32a), and the circuit board (22) of the infrared temperature measurement module (2) is inserted into the socket opening (32a).

4. The induction cooking appliance according to claim 1, wherein, The heating wire coil (12) is provided with an opening (12a), and the outer contour of the fixing portion (31) is adapted to the opening (12a).

5. The induction cooking appliance according to claim 1, characterized in that, The light shielding structure (3) forms a light channel (3a), and a first opening end (33) of the light channel (3a) is in close contact with the glass panel (11).

6. The induction cooking appliance according to claim 5, characterized in that, The infrared temperature measurement module (2) includes a housing (23) at least covering a part of the circuit board (22), the housing (23) having a through hole (23a), and the photosensitive surface of the indium gallium arsenide infrared detection head (21) faces the through hole (23a).

7. The induction cooking appliance according to claim 6, wherein, A second opening end (34) of the light channel (3a) is directly opposite to the through hole (23a) and is in close contact with the housing (23) of the infrared temperature measurement module (2).

8. The induction cooking appliance according to claim 5, wherein, The light channel (3a) extends along its central axis, and the diameter of the first opening end (33) is larger than that of the second opening end (34).

9. The induction cooking appliance according to claim 1, characterized in that, The material of the light shielding structure (3) is an opaque elastic material.

10. A light-shielding structure, characterized in that, The light shielding structure is provided with a fixing portion (31) connected to the heating wire coil (12) in the induction cooking appliance, and the light shielding structure is further provided with a socket portion (32) adapted to the outer contour of the infrared temperature measurement module (2) in the induction cooking appliance. The infrared temperature measurement module (2) is disposed in the socket portion (32) for shielding ambient light for the indium gallium arsenide infrared detection head (21).

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