Electric heating device and cooking utensil

Abstract

The electric heating device comprises a heating element, a mounting seat, a temperature limiter and a first heat insulation piece, a mounting position is arranged in the middle of the heating element, the mounting seat is arranged at the mounting position and provided with a mounting inner cavity, an upper cover body is arranged on the upper side cover of the mounting seat, the temperature limiter is fixedly connected to the upper cover body or the mounting seat, and the first heat insulation piece is arranged in the mounting inner cavity. The upper cover body is provided with an avoiding hole corresponding to the temperature limiter, the temperature limiter is partially located in the installation inner cavity and partially extends to the upper portion of the upper cover body through the avoiding hole, and the first heat insulation part is arranged at the installation position and located between the heating element and the upper cover body and can shield the part, extending to the upper portion of the upper cover body, of the temperature limiter in the horizontal direction. Through the above structure, the accuracy of temperature detection can be improved, the normal work of the temperature limiter can be ensured, the reliable temperature control effect can be realized, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an electric heating device and a cooking utensil. Background Art

[0002] Some existing cooking appliances, such as electric frying pans and electric skillets, are typically equipped with a thermostat to control temperature. Specifically, an electric heating device is installed within the housing of the cooking appliance. The electric heating device typically includes a disc-shaped heating element with a mounting position at the center of the disc-shaped heating element. A cover is provided within the mounting position. A thermostat is located within the mounting position and is covered and shielded by the cover. The thermostat is electrically connected to the heating element. During use, the thermostat detects the temperature of the cooking cavity of the cooking appliance. When the thermostat detects that the temperature reaches a preset safety threshold, it cuts off the power to the heating element to prevent the cooking appliance from overheating and causing a fire. However, for such electric heating devices, due to the obstruction of the cover, there may be a difference between the temperature detected by the thermostat and the actual temperature of the cooking cavity, which can affect the accuracy of temperature detection. On the other hand, if the cover is removed, the temperature of the surrounding heating elements may interfere with the temperature detection of the thermostat, affecting its normal operation. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electric heating device in which a temperature limiter can extend above an upper cover to detect temperature, thereby improving the accuracy of temperature detection. Furthermore, the first thermal insulation member can reduce interference of the heating element with the temperature limiter, thereby ensuring the normal operation of the temperature limiter.

[0004] The utility model also provides a cooking utensil with the electric heating device.

[0005] According to the electric heating device described in the embodiment of the first aspect of the present utility model, it includes a heating element, a mounting seat, a temperature limiter and a first thermal insulation member, a mounting position is provided in the middle of the heating element, the mounting seat is provided at the mounting position and has a mounting inner cavity, the upper side cover of the mounting seat is provided with an upper cover body, the temperature limiter is fixedly connected to the upper cover body or the mounting seat, the upper cover body is provided with a avoidance hole corresponding to the temperature limiter, the temperature limiter is partially located in the mounting inner cavity and partially extends to the top of the upper cover body through the avoidance hole, the first thermal insulation member is provided at the mounting position and is located between the heating element and the upper cover body, and can block the part of the temperature limiter extending above the upper cover body in the horizontal direction.

[0006] According to the electric heating device described in the embodiment of the present invention, it has at least the following beneficial effects: when in use, the temperature limiter is electrically connected to the heating element, and the part of the temperature limiter used for detecting the temperature extends to the top of the upper cover through the avoidance hole to detect the cooking cavity temperature of the cooking utensil. By extending the temperature measuring end of the temperature limiter to the top of the upper cover, the difference between the temperature detected by the temperature limiter and the actual temperature of the cooking cavity can be reduced, which is conducive to improving the accuracy of temperature detection. In addition, the first thermal insulation member is located between the heating element and the upper cover. By shielding the protruding part of the temperature limiter in the horizontal direction by the first thermal insulation member, the interference of the heating element on the temperature limiter can be reduced, which is conducive to ensuring the normal operation of the temperature limiter.

[0007] According to some embodiments of the present invention, the first thermal insulation member is in a cylindrical structure and is disposed around the outer periphery of the upper cover body, and the upper side of the first thermal insulation member is higher than the upper end surface of the upper cover body.

[0008] According to some embodiments of the present invention, the inner cylinder wall of the first thermal insulation component is provided with a thermal insulation material layer.

[0009] According to some embodiments of the present invention, there is a gap between the inner cylindrical wall of the first thermal insulation component and the outer peripheral wall of the upper cover body.

[0010] According to some embodiments of the present invention, a fixing bracket is provided on the outer peripheral side of the mounting seat, the fixing bracket is connected to the heating element and is used to support the heating element, and a plug-in groove is provided on the lower side of the first thermal insulation member, and the first thermal insulation member is plugged into and matched with the fixing bracket through the plug-in groove.

[0011] According to some embodiments of the present invention, three fixing brackets are provided and arranged around the outer circumference of the mounting base, and three plug-in slots are provided corresponding to the fixing brackets.

[0012] According to some embodiments of the present invention, the side wall of the mounting seat is provided with a plug hole, and the fixing bracket is correspondingly provided with a plug pin that cooperates with the plug hole. The fixing bracket is fixedly connected to the outer peripheral side of the mounting seat through the plug-in cooperation between the plug pin and the plug hole.

[0013] According to some embodiments of the present invention, the electric heating device further comprises a second thermal insulation member, which is disposed on the upper side of the upper cover body, and has a cylindrical structure and is disposed around the outer periphery of the protruding portion of the temperature limiter.

[0014] According to some embodiments of the present invention, there is a gap between the inner cylinder wall of the second thermal insulation component and the outer peripheral wall of the protruding portion of the temperature limiter.

[0015] The cooking appliance according to the embodiment of the second aspect of the present invention comprises the electric heating device according to the embodiment of the first aspect of the present invention.

[0016] According to the cooking utensil described in the embodiment of the present invention, it has at least the following beneficial effects: by adopting the above-mentioned electric heating device, its temperature limiter can be extended to the top of the upper cover body for temperature detection and the interference of the heating element on the temperature limiter can be reduced through the first thermal insulation member, which is beneficial to improving the accuracy of temperature detection and ensuring the normal operation of the temperature limiter, achieving a more reliable temperature control effect, and facilitating use.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic structural diagram of an electric heating device according to an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the Zhongdian heating device from another perspective;

[0021] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the electric heating device;

[0022] Figure 4 for Figure 1 Schematic diagram of the cross-section structure of the electric heating device;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of part A.

[0024] Reference numerals:

[0025] Heating element 110, mounting position 111, temperature limiter 120;

[0026] Mounting base 210, mounting inner cavity 211, plug hole 212, upper cover 220, avoidance hole 221, fixing bracket 230, plug pin 231;

[0027] A first thermal insulation member 310 , a plug-in slot 311 , and a second thermal insulation member 320 . DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that if orientation descriptions are involved, the orientations or positional relationships indicated, such as up, down, front, back, left, and right, are based on the orientations or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0030] In the description of this utility model, if the words "several", "greater than", "less than", "exceed", "above", "below", "within" etc. appear, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0031] If the first and second are described, they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figures 1 to 5 , an electric heating device, which includes a heating element 110, a mounting seat 210, a temperature limiter 120 and a first thermal insulation member 310, a mounting position 111 is provided in the middle of the heating element 110, the mounting seat 210 is provided at the mounting position 111 and has a mounting inner cavity 211, the upper side cover of the mounting seat 210 is provided with an upper cover body 220, the temperature limiter 120 is fixedly connected to the upper cover body 220 or the mounting seat 210, and the upper cover body 220 is provided with an avoidance hole 221 corresponding to the temperature limiter 120, the temperature limiter 120 is partially located in the mounting inner cavity 211 and partially extends to the top of the upper cover body 220 through the avoidance hole 221, the first thermal insulation member 310 is provided at the mounting position 111 and is located between the heating element 110 and the upper cover body 220, and can horizontally block the part of the temperature limiter 120 extending above the upper cover body 220.

[0034] It is understandable that if Figure 1 、 Figure 3 and Figure 4 As shown, the heating element 110 is a coil structure, and a mounting position 111 is provided at its center. The mounting seat 210, the upper cover 220, the temperature limiter 120 and the first thermal insulation member 310 are all located in the mounting position 111. The upper cover 220 is covered on the upper side of the mounting seat 210. The temperature limiter 120 is fixedly connected to the upper cover 220, and its lower part is located in the mounting inner cavity 211. Its upper part is a temperature measuring end for detecting the temperature and extends to the top of the upper cover 220 through the avoidance hole 221. The first thermal insulation member 310 is located between the heating element 110 and the upper cover 220, and can block the part of the temperature limiter 120 extending to the top of the upper cover 220 in the horizontal direction. When in use, the temperature limiter 120 is electrically connected to the heating element 110, and the temperature measuring end of the temperature limiter 120 extends to the top of the upper cover 220 through the avoidance hole 221 to detect the cooking cavity temperature of the cooking utensil. Since the temperature measuring end of the temperature limiter 120 is exposed above the upper cover 220, the difference between the temperature detected by the temperature limiter 120 and the actual temperature of the cooking cavity can be reduced, which is beneficial to improving the accuracy of temperature detection. In addition, by shielding the protruding part of the temperature limiter 120 in the horizontal direction through the first thermal insulation component 310, the interference of the heating element 110 on the temperature limiter 120 can be reduced, which is beneficial to ensure the normal operation of the temperature limiter 120 and achieve a more reliable temperature control effect.

[0035] In actual application, the temperature limiter 120 can also be fixedly connected to the mounting base 210. The specific structure of the mounting base 210, the first thermal insulation member 310 and other components can be set accordingly according to actual use needs. A detailed description is not given here and a detailed explanation is given below.

[0036] In some embodiments, the first thermal insulation member 310 is cylindrical and is disposed around the outer circumference of the upper cover 220 , and the upper side of the first thermal insulation member 310 is higher than the upper end surface of the upper cover 220 .

[0037] It is understandable that if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the first thermal insulator 310 is a cylindrical structure that extends vertically. It surrounds the outer periphery of the upper cover 220, with its upper side higher than the upper end surface of the upper cover 220. This effectively shields the extended portion of the temperature limiter 120 horizontally, reducing the transfer of heat from the heating element 110 to the extended portion of the temperature limiter 120 and achieving a better anti-interference effect. In actual application, the specific structure of the first thermal insulator 310 can be customized according to actual needs.

[0038] Furthermore, the inner wall of the first thermal insulation member 310 is provided with a thermal insulation material layer (not shown). It is understood that the provision of this thermal insulation material layer can achieve a better thermal insulation effect on the inner wall of the first thermal insulation member 310, further reducing interference of the heating element 110 with the temperature limiter 120. In actual applications, in addition to the thermal insulation material layer, a reflective layer can also be provided on the outer wall of the first thermal insulation member 310 to reduce interference of the heating element 110 with the temperature limiter 120 by reflecting thermal radiation. The specific setting can be determined according to actual needs.

[0039] Furthermore, there is a gap between the inner wall of the first heat insulating member 310 and the outer wall of the upper cover 220. It is understandable that, if Figure 4 and Figure 5 As shown, due to the gap between the inner wall of the first thermal insulator 310 and the outer wall of the upper cover 220, the first thermal insulator 310 and the upper cover 220 do not contact each other, which helps reduce heat transfer between them, thereby reducing interference with the temperature limiter 120 and facilitating use. In actual use, thermal insulation material can be further provided between the inner wall of the first thermal insulator 310 and the outer wall of the upper cover 220. The specific size of the gap between the inner wall of the first thermal insulator 310 and the outer wall of the upper cover 220 can be set according to actual needs.

[0040] In some embodiments, a fixing bracket 230 is provided on the outer peripheral side of the mounting base 210, the fixing bracket 230 is connected to the heating element 110 and is used to support the heating element 110, and a plug-in groove 311 is provided on the lower side of the first thermal insulation member 310, and the first thermal insulation member 310 is plugged into and matched with the fixing bracket 230 through the plug-in groove 311.

[0041] It is understandable that if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the fixing bracket 230 is a sheet-like structure fixedly connected to the outer periphery of the mounting base 210. It is used to connect to the heating element 110 and support the coil portion of the heating element 110. The lower side of the first thermal insulation member 310 is provided with a plug-in slot 311. The plug-in slot 311 and the fixing bracket 230 are plugged into each other to achieve the installation of the first thermal insulation member 310. This simple structure facilitates the installation and removal of the first thermal insulation member 310. In actual application, in addition to the above structure, the first thermal insulation member 310 can also be installed and connected to the fixing bracket 230 or the mounting base 210 via a threaded structure. The specific structure can be modified according to actual needs.

[0042] In some embodiments, three fixing brackets 230 are provided and arranged around the outer periphery of the mounting base 210, and the plug-in slots 311 are provided at three positions corresponding to the fixing brackets 230. It is understood that, if Figure 1 、 Figure 2and Figure 3 As shown, three fixing brackets 230 are evenly spaced around the outer periphery of the mounting base 210. Three corresponding insertion slots 311 are provided on the underside of the first thermal insulator 310. These three insertion slots 311 engage with the three fixing brackets 230, respectively. This three-point insertion fixation effectively secures the mounting position of the first thermal insulator 310, preventing horizontal movement and rotation, and improving the stability and reliability of the installation connection. In actual application, the specific number of fixing brackets 230 and insertion slots 311 can be varied according to actual needs.

[0043] In some embodiments, the side wall of the mounting base 210 is provided with a plug hole 212, and the fixing bracket 230 is correspondingly provided with a plug pin 231 that cooperates with the plug hole 212. The fixing bracket 230 is fixedly connected to the outer peripheral side of the mounting base 210 through the plug-in cooperation between the plug pin 231 and the plug hole 212.

[0044] It is understandable that if Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the side wall of the mounting base 210 is provided with a plug hole 212, and the side of the fixing bracket 230 adjacent to the mounting base 210 is provided with a corresponding plug pin 231. During installation, the plug pin 231 plugs into the plug hole 212 to achieve a fixed connection between the fixing bracket 230 and the mounting base 210. The simple structure facilitates the installation and removal of the fixing bracket 230. In actual application, in addition to the above structure, the fixing bracket 230 can also be installed and connected to the mounting base 210 via a threaded structure, or the fixing bracket 230 can be fixed to the outer peripheral side of the mounting base 210 by welding. The specific setting can be made according to actual use needs.

[0045] In some embodiments, the electric heating device further includes a second thermal insulation member 320 , which is disposed on the upper side of the upper cover 220 . The second thermal insulation member 320 is a cylindrical structure and is disposed around the outer periphery of the protruding portion of the temperature limiter 120 .

[0046] It is understandable that if Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, the second thermal insulator 320 is a cylindrical structure extending vertically. It is located on the upper side of the upper cover 220 and surrounds the outer periphery of the extended portion of the temperature limiter 120. This shields the outer periphery of the extended portion of the temperature limiter 120, further reducing the transfer of heat from the heating element 110 to the extended portion of the temperature limiter 120 and improving the anti-interference effect. In actual application, the second thermal insulator 320 can be set accordingly according to actual needs.

[0047] Furthermore, there is a gap between the inner wall of the second heat insulating member 320 and the outer wall of the extended portion of the temperature limiter 120. It is understandable that Figure 4 and Figure 5 As shown, due to the gap between the inner wall of the second thermal insulator 320 and the outer wall of the extended portion of the temperature limiter 120, the second thermal insulator 320 and the extended portion of the temperature limiter 120 do not contact each other, which helps reduce heat transfer between them, thereby reducing interference with the temperature limiter 120 and facilitating use. In actual application, a layer of thermal insulation material can be provided on the inner wall of the second thermal insulator 320, similar to the first thermal insulator 310. The specific gap size between the inner wall of the second thermal insulator 320 and the outer wall of the extended portion of the temperature limiter 120 can be set according to actual needs.

[0048] The cooking appliance according to the second embodiment of the present invention includes the electric heating device according to the first embodiment of the present invention.

[0049] According to the cooking appliance of the embodiment of the present invention, by adopting the above-mentioned electric heating device, its temperature limiter 120 can be extended to the top of the upper cover body 220 for temperature detection and can reduce the interference of the heating element 110 on the temperature limiter 120 through the first thermal insulation member 310, which is beneficial to improve the accuracy of temperature detection and ensure the normal operation of the temperature limiter 120, achieve a more reliable temperature control effect, and facilitate use.

[0050] Since other components of the cooking appliance according to the embodiment of the present invention are known to those skilled in the art, they will not be described in detail here.

[0051] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An electric heating device, characterized in that: include: A heating element, wherein a mounting position is provided in the middle of the heating element; A mounting seat, the mounting seat is provided at the mounting position and has a mounting inner cavity, and the upper side cover of the mounting seat is provided with an upper cover body; a temperature limiter, the temperature limiter being fixedly connected to the upper cover or the mounting seat, the upper cover being provided with an avoidance hole corresponding to the temperature limiter, the temperature limiter being partially located in the mounting inner cavity and partially extending above the upper cover through the avoidance hole; A first heat insulating member is provided at the installation position and is located between the heating element and the upper cover, and can horizontally shield the portion of the temperature limiter extending above the upper cover.

2. The electric heating device according to claim 1, characterized in that: The first heat insulating member is in a cylindrical structure and is disposed around the outer periphery of the upper cover body. The upper side of the first heat insulating member is higher than the upper end surface of the upper cover body.

3. The electric heating device according to claim 2, characterized in that: The inner cylinder wall of the first thermal insulation component is provided with a thermal insulation material layer.

4. The electric heating device according to claim 2, characterized in that: There is a gap between the inner cylindrical wall of the first heat insulating member and the outer peripheral wall of the upper cover.

5. The electric heating device according to claim 2, characterized in that: A fixing bracket is provided on the outer peripheral side of the mounting seat, and the fixing bracket is connected to the heating element and is used to support the heating element. A plug-in slot is provided on the lower side of the first thermal insulation member, and the first thermal insulation member is plugged into and matched with the fixing bracket through the plug-in slot.

6. The electric heating device according to claim 5, characterized in that: The fixing brackets are provided in three and are arranged around the outer circumference of the mounting seat, and the plug-in slots are provided in three corresponding to the fixing brackets.

7. The electric heating device according to claim 5, characterized in that: The side wall of the mounting seat is provided with a plug hole, and the fixing bracket is correspondingly provided with a plug pin that matches the plug hole. The fixing bracket is fixedly connected to the outer peripheral side of the mounting seat through the plug pin and the plug hole.

8. The electric heating device according to claim 1, characterized in that: It also includes a second thermal insulation member, which is arranged on the upper side of the upper cover body. The second thermal insulation member is a cylindrical structure and is arranged around the outer periphery of the extended part of the temperature limiter.

9. The electric heating device according to claim 8, characterized in that: A gap is defined between the inner wall of the second heat insulating member and the outer peripheral wall of the extended portion of the temperature limiter.

10. A cooking utensil, characterized in that: The invention comprises the electric heating device according to any one of claims 1 to 9.

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