Split type electric food warmer

Abstract

The utility model discloses a split type electric food warmer, which comprises a base and a pot which is arranged on the base in a removable way, an electric heating piece is arranged at the bottom of the pot, the electric heating piece is provided with a wiring terminal, a conducting strip is arranged in the base, the wiring terminal and / or the conducting strip are / is provided with a magnetic attraction piece, and the magnetic attraction piece is arranged on the base. When the cookware is placed on the base, the wiring terminal is inserted into the base and is in contact with the conducting strip through mutual attraction of the magnetic attraction piece. According to the split type electric food warmer, the wiring terminal and the conducting strip are kept in contact through mutual attraction of the magnetic attraction pieces, and the phenomenon that a product is not powered on or sparking occurs due to elasticity attenuation is avoided.

Description

[Technical field]

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a split electric hot pot. [Background technology]

[0002] The split electric hot pot in the prior art includes a base and a pot that can be placed on the base. The bottom of the pot is provided with an electric heating element, which is provided with a terminal. The base is provided with a conductive sheet, which has elastically installed contacts. When the pot is placed on the base, the contacts are in contact with the terminal under the action of elastic force. After the power is turned on, the electric heating element is powered to generate heat for cooking. However, after experiencing high temperatures and lifting the pot many times, the elasticity will decay, which will cause the contacts to fail to contact the terminal, that is, there is a risk of the product not being powered on and sparking. [Contents of the utility model]

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a split electric hot pot, in which the connection terminals and the conductive sheet are kept in contact by mutual adsorption of magnetic suction parts, thereby avoiding the occurrence of product failure or sparking due to elastic attenuation.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A split electric hot pot comprises a base and a pot placed on the base in a removable manner, wherein an electric heating element is provided at the bottom of the pot, and the electric heating element is provided with a wiring terminal. A conductive sheet is provided in the base, and a magnetic attraction is provided on the wiring terminal and / or the conductive sheet. When the pot is placed on the base, the wiring terminal is inserted into the base and is attracted to the conductive sheet through the magnetic attraction to maintain contact.

[0006] In the above-mentioned split-type electric hot pot, one of the conductive sheet and the connecting terminal is a metal magnetic part, and the other is provided with the magnetic attraction part.

[0007] In the above-mentioned split electric hot pot, the connection terminal and the conductive sheet are both provided with magnetic elements, the magnetic element provided on the connection terminal is a first magnetic element, and the magnetic element provided on the conductive sheet is a second magnetic element attracted to the first magnetic element.

[0008] In the above split electric hot pot, the conductive sheet has a first contact, the terminal has a second contact in contact with the first contact, and the distance between the first contact and the second contact is smaller than the distance between the first magnetic attraction member and the second magnetic attraction member.

[0009] In the above-mentioned split electric hot pot, the first contact is a protrusion arranged toward the second contact, the second magnetic attraction member is riveted and fixed on the side of the conductive sheet facing the second contact, and the top surface of the second magnetic attraction member is arranged lower than the top surface of the protrusion.

[0010] In the above-mentioned split-type electric hot pot, the first magnetic attraction member is a column structure coaxially arranged with the wiring terminal, and the outer diameter of the first magnetic attraction member is not greater than the outer diameter of the wiring terminal.

[0011] In the above-mentioned split electric hot pot, the conductive sheet is a metal spring sheet, the metal spring sheet includes an elastic section that can undergo vertical deformation, the elastic section includes a fixed end and a free end, and the second magnetic attraction member is arranged close to the free end.

[0012] In the above-mentioned split electric hot pot, the electric heating element is a heating tube, the connecting terminal is located at the cold end of the heating tube, and the connecting terminal is provided with a magnetic attraction member, which is located at the end of the connecting terminal away from the heating tube.

[0013] In the above-mentioned split-type electric hot pot, an elastic member is installed on the bottom wall of the base, and the conductive sheet is fixed on the top of the elastic member.

[0014] In the above-mentioned split electric hot pot, the base includes an upper cover for placing the pot, the upper cover is provided with a through hole for inserting the wiring terminal, the base is provided with a accommodating box located below the upper cover and slidably installed, and a resetting member for driving the accommodating box to reset, the conductive sheet is fixed on the upper cover and inserted into the accommodating box, the top of the accommodating box is provided with a through hole for inserting the wiring terminal, the accommodating box slides under the push of the wiring terminal so that the wiring terminal corresponds to and is adsorbed with the conductive sheet, and the resetting member drives the accommodating box to reset when the pot is taken away so that the accommodating box covers the conductive sheet.

[0015] Beneficial effects of the utility model:

[0016] In the utility model, a magnetic attraction is provided on the connection terminal and / or the conductive sheet. When the pot is placed on the base, the connection terminal is inserted into the base and is attracted to the conductive sheet through the magnetic attraction to maintain contact. In this way, even if the elasticity decays, the connection terminal and the conductive sheet will be close to each other and maintain contact under the action of magnetic force, thereby avoiding the occurrence of power failure or sparking of the product due to elastic decay; in addition, after experiencing high temperature and lifting the pot many times, the magnetic force of the magnetic attraction will not fail, thereby extending the service life of the product.

[0017] One of the conductive sheet and the terminal block is a metal magnetic part, and the other is provided with a magnetic attraction part. With such a design, only one magnetic attraction part is required, thereby reducing the number of parts of the product and reducing the assembly manufacturing cost.

[0018] Both the terminal and the conductive sheet are provided with magnetic elements, the magnetic element provided on the terminal is a first magnetic element, and the magnetic element provided on the conductive sheet is a second magnetic element attracted to the first magnetic element. With such a design, the conductive sheet and the terminal can be made of non-magnetic metal materials (such as copper) with good conductive properties, so as to improve the conductive properties of the terminal after contacting the conductive sheet.

[0019] The conductive sheet has a first contact point, the terminal has a second contact point in contact with the first contact point, and the distance between the first contact point and the second contact point is not greater than the distance between the first magnetic member and the second magnetic member. With such a design, when the first contact point contacts the second contact point, the first magnetic member and the second magnetic member are in just contact or have a gap, so as to avoid the first contact point and the second contact point being unable to contact each other when the distance between the first magnetic member and the second magnetic member point is not greater than the distance between the first contact point and the second contact point.

[0020] The first contact is a raised portion arranged toward the second contact, and the second magnetic member is riveted and fixed to the side of the conductive sheet facing the second contact, and the top surface of the second magnetic member is arranged lower than the top surface of the raised portion. With such a design, the distance between the first contact and the second contact can be made smaller, so that the distance between the first contact and the second contact is not greater than the distance between the first magnetic member and the second magnetic member, thereby ensuring that the first contact is in contact with the second contact, and the structure is relatively simple.

[0021] The first magnetic member is a column structure coaxially arranged with the terminal, and the outer diameter of the first magnetic member is smaller than the outer diameter of the terminal. Since the second contact is formed at the portion of the outer peripheral side of the terminal facing the first contact, the outer diameter of the first magnetic member is smaller than the outer diameter of the terminal, so that the distance between the first magnetic member and the second magnetic member can be larger, so as to meet the requirement that the distance between the first contact and the second contact is not greater than the distance between the first magnetic member and the second magnetic member, thereby ensuring that the first contact is in contact with the second contact, and the structure is relatively simple.

[0022] The conductive sheet is a metal spring sheet, which includes an elastic section that can be vertically deformed, and the elastic section includes a fixed end and a free end, and the second magnetic member is arranged near the free end. Since the free end can deform more and is more easily deformed than the fixed end, the second magnetic member is arranged near the free end, so that the second magnetic member can more easily drive the free end to deform and approach the terminal, thereby ensuring that the conductive sheet is in contact with the terminal.

[0023] The electric heating element is a heating tube, the terminal is located at the cold end of the heating tube, and the terminal is provided with a magnetic attraction, which is located at the end of the terminal away from the heating tube. Such a design can reduce the heat transferred to the magnetic attraction, thereby extending the service life of the magnetic attraction.

[0024] An elastic member is installed on the bottom wall of the base, and the conductive sheet is fixed on the top of the elastic member. With this design, the conductive sheet can be installed floatingly on the base as a whole. After the pot is placed on the base and the wiring terminal is inserted into the base, the wiring terminal will contact the conductive sheet and press the conductive sheet downward. At this time, the spring is compressed and deformed so that the pot can be placed in place. After the pot is lifted, the elastic member recovers its deformation and the conductive sheet moves upward to reset. It can be seen that supporting the conductive sheet with an elastic member can improve the contact reliability between the wiring terminal and the conductive sheet, and the structure is also relatively simple.

[0025] The base includes an upper cover for placing the pot, the upper cover is provided with a through hole for inserting the wiring terminal, the base is provided with a slidably mounted storage box located below the upper cover and a reset member for driving the storage box to reset, the conductive sheet is fixed on the upper cover and inserted into the storage box, the top of the storage box is provided with a through hole for inserting the wiring terminal, the storage box slides under the push of the wiring terminal so that the wiring terminal corresponds to and adsorbs the conductive sheet, and the reset member drives the storage box to reset when the pot is taken away so that the storage box covers the conductive sheet. With such a design, when the pot is not placed, the storage box will cover the conductive sheet inside to avoid the conductive sheet being exposed, thereby realizing the function of preventing electric shock; in addition, it can also prevent dust and other debris from falling on the conductive sheet, causing poor contact in the later stage, affecting the normal use of the entire product.

[0026] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the explosion of the split electric hot pot in the utility model;

[0029] Figure 2 This is a cross-sectional view of the utility model after the split electric hot pot is assembled;

[0030] Figure 3 This is a three-dimensional cross-sectional view of the utility model after the split electric hot pot is assembled;

[0031] Figure 4 It is a schematic diagram of the structure of the connection terminal of the electric heating element in the utility model in contact with the conductive sheet;

[0032] Figure 5 It is a cross-sectional view of the connection terminal of the electric heating element in the utility model in contact with the conductive sheet;

[0033] Figure 6 It is a schematic structural diagram of the connection terminal of the electric heating element and the conductive sheet before being adsorbed in the utility model.

[0034] Reference numerals:

[0035] 100, base; 110, upper cover; 111, perforation; 120, accommodating box; 121, box body; 122, box cover; 1221, through hole; 200, cookware; 300, electric heating element; 310, wiring terminal; 311, second contact; 400, conductive sheet; 410, elastic section; 401, fixed end; 402, free end; 411, first contact; 420, connecting section; 500, first magnetic element; 600, second magnetic element. [Specific implementation method]

[0036] The utility model provides a split electric hot pot, comprising a base and a pot placed on the base in a removable manner, wherein an electric heating element is arranged at the bottom of the pot, the electric heating element is provided with a wiring terminal, a conductive sheet is arranged in the base, a magnetic attraction element is arranged on the wiring terminal and / or the conductive sheet, and when the pot is placed on the base, the wiring terminal is inserted into the base and is mutually attracted to the conductive sheet through the magnetic attraction element to maintain contact.

[0037] In the utility model, a magnetic attraction is provided on the connection terminal and / or the conductive sheet. When the pot is placed on the base, the connection terminal is inserted into the base and is attracted to the conductive sheet through the magnetic attraction to maintain contact. In this way, even if the elasticity decays, the connection terminal and the conductive sheet will be close to each other and maintain contact under the action of magnetic force, thereby avoiding the occurrence of power failure or sparking of the product due to elastic decay; in addition, after experiencing high temperature and lifting the pot many times, the magnetic force of the magnetic attraction will not fail, thereby extending the service life of the product.

[0038] The technical scheme of the embodiment of the utility model is explained and illustrated below in conjunction with the drawings of the embodiment of the utility model, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without making creative work all belong to the protection scope of the utility model. In addition, it should be understood that the following words indicating orientation or position relationship such as "up", "down", "left", "right", "longitudinal", "lateral", "inside", "outside", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0039] Reference Figures 1 to 6As shown, in this embodiment, the split electric hot pot includes a base 100 and a pot 200 that can be placed on the base 100. An electric heating element 300 is provided at the bottom of the pot 200, and the electric heating element 300 is provided with a terminal 310. A conductive sheet 400 is provided in the base 100. Both the terminal 310 and the conductive sheet 400 are provided with magnetic elements, wherein the magnetic element provided on the terminal 310 is a first magnetic element 500, and the magnetic element provided on the conductive sheet 400 is a second magnetic element 600. The first magnetic element 500 and the second magnetic element 600 are permanent magnets that are resistant to high temperatures and have opposite magnetic properties. In this way, when the pot 200 is placed on the base 100, after the terminal 310 is inserted into the base 100, under the mutual adsorption force of the first magnetic element 500 and the second magnetic element 600, the terminal 310 is adsorbed and maintained in contact with the conductive sheet 400. In this way, even if the elasticity decays, the terminal 310 and the conductive sheet 400 will be close to and maintain contact under the action of magnetic force, so as to avoid the occurrence of product power failure or sparking due to elastic decay; in addition, after experiencing high temperature and multiple lifting of the pot (taking away the pot), the magnetic force of the magnetic suction component will not fail, thereby extending the service life of the product; finally, magnetic suction components are provided on both the terminal 310 and the conductive sheet 400, so that the conductive sheet 400 and the terminal 310 can be made of non-magnetic metal materials with good conductive properties (such as copper) to improve the conductive properties of the terminal 310 after contact with the conductive sheet 400.

[0040] Specifically, the conductive sheet 400 in this embodiment is a metal spring sheet, which includes an elastic section 410 that can deform vertically by itself, one end of the elastic section 410 is fixed to form a fixed end 401, and the other end is freely set to form a free end 402, wherein the second magnetic attraction member 600 is arranged on the elastic section 410 and is arranged close to the free end 402, and the elastic section 410 has a first contact 411, and the first contact 411 and the second magnetic attraction member 600 are located on the same side of the elastic section 410. The connecting terminal 310 is a lead rod, and its outer peripheral side has a second contact 311 in contact with the first contact 411. At a moment before the connecting terminal 310 is inserted into the base 100 and the first magnetic attraction member 500 and the second magnetic attraction member 600 are not adsorbed (such as Figure 6As shown), the distance L1 between the first contact 411 and the second contact 311 is not greater than the distance L2 between the first magnetic member 500 and the second magnetic member 600. With this design, when the first contact 411 contacts the second contact 311, the first magnetic member 500 and the second magnetic member 600 just maintain contact or maintain a gap, so as to avoid the first contact 411 and the second contact 311 being unable to contact when the distance between the first magnetic member 500 and the second magnetic member 600 is less than the distance between the first contact 411 and the second contact 311, thereby ensuring the contact reliability between the first contact 411 and the second contact 311; in addition, since the deformation amplitude of the free end 402 is large and it is easier to deform relative to the fixed end 401, the second magnetic member 600 is arranged close to the free end 402, so that the second magnetic member 600 can more easily drive the free end 402 to deform close to the terminal 310, thereby ensuring the contact between the conductive sheet 400 and the terminal 310.

[0041] Preferably, the first contact 411 is a raised portion arranged toward the second contact 311, that is, the surface of the elastic segment 410 is provided with a silver contact protruding from the surface of the elastic segment 410, and the silver contact forms the first contact 411. Since silver has better conductivity, the current conduction capacity between the conductive sheet 400 and the terminal 310 is improved by the silver contact contacting and conducting with the second contact 311. The second magnetic member 600 is riveted and fixed on the side of the elastic segment 410 facing the second contact 311, and the top surface of the second magnetic member 600 is arranged lower than the top surface of the raised portion. With such a design, the distance L1 between the first contact 411 and the second contact 311 can be made smaller to meet the requirement that the distance L1 between the first contact 411 and the second contact 311 is not greater than the distance L2 between the first magnetic member 500 and the second magnetic member 600, thereby ensuring that the first contact 411 is in contact with the second contact 311, and the structure is relatively simple.

[0042] More preferably, the first magnetic member 500 in the present embodiment is a columnar structure coaxially arranged with the terminal 310, and the outer diameter of the first magnetic member 500 is smaller than the outer diameter of the terminal 310. Such a design can make the distance between the first magnetic member 500 and the second magnetic member 600 larger, so that when the first contact 411 is a protrusion arranged toward the second contact 311, the distance between the first contact 411 and the second contact 311 is smaller than the distance L2 between the first magnetic member 500 and the second magnetic member 600, thereby ensuring that the first contact 411 is in contact with the second contact 311, and the structure is relatively simple.

[0043] In addition, the electric heating element 300 in this embodiment is a heating tube, the terminal 310 is located at the cold end of the heating tube, and the first magnetic element 500 is located at the end of the terminal 310 away from the heating tube. Such a design can reduce the heat transferred to the first magnetic element 500, thereby extending the service life of the first magnetic element 500.

[0044] Finally, the base 100 in this embodiment also includes an upper cover 110 for placing the cookware 200, the upper cover 110 has an upwardly arched boss, the wall of the boss is provided with a through hole 111 for inserting the terminal 310, the fixed end 401 of the elastic section 410 is fixed to the inner side surface of the top wall of the boss by screws, and the conductive sheet 400 also includes a vertically extending connecting section 420, the top of the connecting section 420 is connected to the fixed end 401 of the elastic section 410, preferably, the connecting section 420 and the elastic section 410 are integrally processed and formed, and the connecting section 420 is electrically connected to the controller. In addition, a slidably mounted receiving box 120 is provided in the base 100 and is located below the upper cover 110. The receiving box 120 includes a box body 121 and a box cover 122. The box cover 122 is located in a corresponding concave cavity formed by the upper cover 110 arching upward to form a boss. A gap is provided at the connection between the box body 121 and the box cover 122 for the elastic section 410 to pass through and extend into the receiving box 120. A through hole 1221 is provided on the top of the box cover 122 for the wiring terminal 310 to be inserted. When the cookware 200 is placed on the upper cover 110, the wiring terminal 310 is first inserted into the through hole 111 and the through hole 1221, and then the receiving box 120 is pushed to slide so that the through hole 1221 moves to above the conductive sheet 400, so that the wiring terminal 310 can correspond to the conductive sheet 400 and be adsorbed and kept in contact. In addition, a reset member for resetting the containing box 120 is provided in the base 100. The reset member is a spring. When the connecting terminal 310 is adsorbed and kept in contact with the conductive sheet 400, the spring is in a compressed state. After the cookware 200 is removed, the spring resets to drive the containing box 120 to reset and misalign the through hole 1221 with the conductive sheet 400, so that the box cover 122 covers the conductive sheet 400, thereby preventing the conductive sheet 400 from being exposed, thereby realizing the function of preventing electric shock; in addition, it can also prevent dust and other debris from falling onto the conductive sheet 400, causing poor contact in the later stage, and affecting the normal use of the entire product.

[0045] In another embodiment of the utility model, an elastic member can be installed on the bottom wall of the base. The elastic member is a spring. The lower end of the spring is fixed on the bottom wall of the base, and the upper end of the spring is fixedly connected to the conductive sheet, so that the spring supports the entire conductive sheet upward, and the conductive sheet can be installed on the base as a whole in a floating manner. At this time, the conductive sheet does not need to use a metal elastic sheet. After the pot is placed on the base and the wiring terminal is inserted into the base, the wiring terminal will contact the conductive sheet and press the conductive sheet downward. At this time, the spring is compressed and deformed, so that the pot can be placed in place. After the pot is lifted, the elastic member recovers its deformation, and the conductive sheet moves upward to reset. It can be seen that supporting the conductive sheet with an elastic member can improve the contact reliability between the wiring terminal and the conductive sheet, and the structure is also relatively simple.

[0046] In another embodiment of the utility model, the first magnetic component can also be fixed on the outside of the terminal by interference fit. At this time, the difference between the outer diameter of the first magnetic component and the outer diameter of the terminal is C1, and a groove is provided on the elastic section. The second magnetic component can also be embedded and fixed in the groove. At this time, the top surface of the protrusion is lower than the top surface of the protrusion, and the height difference between the two is C2, satisfying C1≤C2. With such a design, the distance between the first contact and the second contact can be no greater than the distance between the first magnetic component and the second magnetic component.

[0047] In another embodiment of the utility model, a magnetic attraction member is provided on the terminal block, the magnetic attraction member is a permanent magnet, and the conductive sheet is a metal magnetic member, such as an iron sheet. In this way, the terminal block and the conductive sheet can be kept in contact through the adsorption of the magnetic attraction member and the conductive sheet. In addition, only one magnetic attraction member is required, which can reduce the number of parts of the product and thereby reduce the assembly and manufacturing costs.

[0048] In another embodiment of the utility model, the terminal block is a metal magnetic part, such as an iron rod, and a magnetic attraction part is provided on the conductive sheet, and the magnetic attraction part is a permanent magnet. In this way, the terminal block and the conductive sheet can be kept in contact through the adsorption of the magnetic attraction part and the iron rod. In addition, only one magnetic attraction part is required, which can reduce the number of parts of the product and thus reduce the assembly and manufacturing costs.

[0049] In another embodiment of the present invention, the conductive sheet may also include only the elastic section, and in this case, it is only necessary for the elastic section to be electrically connected to the controller.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A split electric hot pot, comprising a base and a pot placed on the base in a removable manner, the bottom of the pot is provided with an electric heating element, the electric heating element is provided with a terminal, and a conductive sheet is provided in the base, characterized in that: The connection terminal and / or the conductive sheet are provided with a magnetic attraction member. When the cookware is placed on the base, the connection terminal is inserted into the base and is attracted to the conductive sheet through the magnetic attraction member to maintain contact.

2. A split electric hot pot as claimed in claim 1, characterized in that: One of the conductive sheet and the connecting terminal is a metal magnetic piece, and the other is provided with the magnetic attraction piece.

3. A split electric hot pot as claimed in claim 1, characterized in that: The connecting terminal and the conductive sheet are both provided with magnetic attracting members, the magnetic attracting member provided on the connecting terminal is a first magnetic attracting member, and the magnetic attracting member provided on the conductive sheet is a second magnetic attracting member attracted to the first magnetic attracting member.

4. A split electric hot pot as claimed in claim 3, characterized in that: The conductive sheet has a first contact point, the wiring terminal has a second contact point in contact with the first contact point, and the distance between the first contact point and the second contact point is not greater than the distance between the first magnetic attraction member and the second magnetic attraction member.

5. A split electric hot pot as claimed in claim 4, characterized in that: The first contact is a protrusion disposed toward the second contact, the second magnetic attraction member is riveted and fixed to a side of the conductive sheet facing the second contact, and a top surface of the second magnetic attraction member is disposed lower than a top surface of the protrusion.

6. A split electric hot pot as claimed in claim 4, characterized in that: The first magnetic attraction member is a column structure coaxially arranged with the wiring terminal, and the outer diameter of the first magnetic attraction member is smaller than the outer diameter of the wiring terminal.

7. A split electric hot pot as claimed in claim 3, characterized in that: The conductive sheet is a metal spring sheet, the metal spring sheet includes an elastic section that can undergo vertical deformation, the elastic section includes a fixed end and a free end, and the second magnetic attraction member is arranged close to the free end.

8. A split electric hot pot as claimed in claim 1, characterized in that: The electric heating element is a heating tube, the connecting terminal is located at the cold end of the heating tube, and the connecting terminal is provided with a magnetic attraction member, and the magnetic attraction member is located at an end of the connecting terminal away from the heating tube.

9. A split electric hot pot as claimed in claim 1, characterized in that: An elastic member is installed on the bottom wall of the base, and the conductive sheet is fixed on the top of the elastic member.

10. A split electric hot pot as claimed in claim 1, characterized in that: The base includes an upper cover for placing the cookware, the upper cover is provided with a through hole for inserting the wiring terminal, the base is provided with a accommodating box located below the upper cover and slidably installed, and a reset member for driving the accommodating box to reset, the conductive sheet is fixed on the upper cover and inserted into the accommodating box, the top of the accommodating box is provided with a through hole for inserting the wiring terminal, the accommodating box slides under the push of the wiring terminal so that the wiring terminal corresponds to and is adsorbed with the conductive sheet, and the reset member drives the accommodating box to reset when the cookware is taken away so that the accommodating box covers the conductive sheet.

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