Multifunctional energy-saving electric heating baking tray

Abstract

The utility model provides a multifunctional energy-saving electric heating baking tray which comprises a base and a frame, a heating assembly is arranged on the base, and the base is provided with a heating assembly installation cavity and a control assembly installation cavity which are independently arranged. A sealing washer is arranged between the base and the frame; a groove capable of accommodating a heating body substrate is transversely formed in the sealing washer at the heating component mounting cavity, and the sealing washer separates the upper frame from the heating body substrate; and a protection circuit is coated on the heating body substrate. According to the structure, the sealing washer can strengthen the sealing structure, so that the sealing performance is better; the groove is formed in the sealing gasket, the sealing gasket separates the frame from the heating body substrate, heat of the heating body substrate can be prevented from being directly transmitted to the frame, and the temperature of the upper frame can be effectively prevented from being too high. According to the design of the protection circuit, when any position, close to the edge, of the heating body substrate cracks, the protection circuit can be disconnected, the situation of electric leakage is prevented, and the safety of a user is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating products, in particular to a multifunctional energy-saving electric heating baking pan. Background Art

[0002] Because the moisture on the surface of the food evaporates quickly under high temperature baking, a layer of crispy skin is formed, which not only makes the food crispy on the outside and tender on the inside, but also locks the moisture inside, maintaining the deliciousness and taste of the meat, so barbecue food is widely welcomed by people. In order to conveniently obtain baked food, a baking tray specially designed for baking food is designed.

[0003] A patent document with the authorization announcement number CN219960863U discloses a graphene electric heating baking tray, including a main shell, a connecting frame is arranged on the upper side of the main shell, and is fixedly connected by bolts, the connecting frame is clamped and fixed on the lower side of the microcrystalline glass heating plate, the bottom surface of the microcrystalline glass heating plate is coated with a graphene heating coating, and the graphene heating coating is arranged inside the limit frame, and a charging line is connected to the bottom surface of the graphene heating coating, and the charging line passes through a movable block, and the movable block is rotatably connected to the main shell. This scheme realizes the use of far-infrared rays to bake food through the structure of microcrystalline glass and graphene, and has low energy consumption, good energy-saving and environmental protection effects, and fast heating response speed, which improves the efficiency of heating and baking, and the charging line can be conveniently placed inside through the movable block and the limit card, so as to achieve the purpose of convenient arrangement.

[0004] A patent document with authorization announcement number CN219661480U discloses an infrared heating baking tray, including a baking tray body, a storage slot recessed at the top of the baking tray body, a heating plate arranged at the bottom of the storage slot, a heating device arranged below the heating plate, and a control panel arranged on one side of the storage slot, wherein the heating plate is made of microcrystalline glass, and the heating device is a rare earth thick film circuit heating element that can generate far infrared rays; this scheme heats food by using a rare earth thick film circuit heating element that can perform infrared radiation heating, and the far infrared rays generated by the rare earth thick film circuit heating element can pass through the heating plate supported by microcrystalline glass and heat the food, and the far infrared rays can improve the heating efficiency and allow the heat to quickly penetrate the food. This scheme not only has high heating efficiency and low energy consumption, but also has little smoke and good food taste, and can be better applied to daily life.

[0005] The problem of cleaning the baking tray after use has always been a major problem that troubles users. Because it involves electric heating elements, many baking trays cannot be directly rinsed with water, causing inconvenience in cleaning. Similarly, the above two solutions do not solve the problem of waterproofing the baking tray during cleaning; in addition, the above two solutions do not solve the safety problem of the microcrystalline glass plate after accidental breakage.

[0006] Therefore, it is necessary to design a safe, energy-saving, and easy-to-clean electric baking tray to solve the above problems. Summary of the invention

[0007] In order to solve the problems existing in the prior art, the utility model provides a multifunctional energy-saving electric baking pan, which realizes the sealing and waterproofing of the baking pan by arranging sealing gaskets which can respectively seal the heating component installation cavity and the control component installation cavity; and cuts off the power supply in time by arranging a protection circuit to ensure the safety of the user.

[0008] To achieve the above-mentioned purpose, the technical scheme of the utility model is: a multifunctional energy-saving electric baking pan, comprising a base and a frame detachably connected to the base, a heating component is arranged on the base, the heating component comprises a heating body substrate, the base has an independently arranged heating component installation cavity and a control component installation cavity; a sealing gasket which can seal the heating component installation cavity and the control component installation cavity respectively is arranged between the base and the frame; a groove which can accommodate the heating body substrate is transversely opened on the sealing gasket at the heating component installation cavity, the sealing gasket separates the upper frame from the heating body substrate, so that the upper frame and the heating body substrate do not contact; a heating coating is locally coated and sintered on the heating body substrate; a protection circuit which surrounds the heating coating and is used to prevent the heating coating from leaking is coated on the heating body substrate, the starting end of the protection circuit is not connected to the end end, the starting end and the end end of the protection circuit are staggered in the extension direction of the protection circuit, so that the protection circuit surrounds the heating coating 360° in all directions; a control component is arranged in the control component installation cavity, and the control component is electrically connected to the heating coating and the protection circuit.

[0009] In the above structure, the heating component installation cavity and the control component installation cavity are separately set, and the sealing gaskets seal the heating component installation cavity and the control component installation cavity respectively, which can strengthen the sealing structure and make the sealing better; a groove that can accommodate the heating element substrate is horizontally opened on the sealing gasket, and the sealing gasket separates the frame and the heating element substrate so that the frame and the heating element substrate are not in contact. This setting can prevent the heat of the heating element substrate from being directly transferred to the frame, and can effectively prevent the upper frame temperature from being too high. The sealing gasket can not only play a waterproof role, but also play a shock-absorbing, buffering and insulating role; the design of the above protection circuit can disconnect the protection circuit when the heating element substrate breaks or cracks at any position near the edge, so that the control circuit of the baking tray can immediately detect the disconnection signal, and then control the heating coating to cut off the power, prevent leakage, and ensure the safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0011] Figure 2 It is a structural schematic diagram of another perspective of an embodiment of the utility model;

[0012] Figure 3 It is a schematic diagram of the structural decomposition of an embodiment of the utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the base in the embodiment of the utility model;

[0014] Figure 5 This is a schematic diagram of the structure of the sealing gasket in the embodiment of the utility model;

[0015] Figure 6 This is a schematic diagram of the structure of the heating component in the embodiment of the utility model;

[0016] Figure 7 This is a schematic structural diagram of the heating component in another perspective in the embodiment of the utility model;

[0017] Figure 8 This is a schematic diagram of the structural decomposition of the heating component in the embodiment of the utility model;

[0018] Fig. 9 It is a schematic diagram of a heating element substrate in an embodiment of the utility model;

[0019] Fig.10 It is a schematic diagram of another embodiment of the protection circuit on the heating element substrate in the embodiment of the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figures 1 to 10 As shown, a multifunctional energy-saving electric baking pan comprises a base 6 and a frame 5 detachably connected to the base 6. Usually, the frame 5 is made of aluminum alloy die-casting.

[0022] like Figure 3 and Figure 4 As shown, the base 6 has a heating component installation cavity 61 and a control component installation cavity 62 which are independently arranged.

[0023] The base 6 can be made of thermoplastic plastic or thermosetting plastic by injection molding. In this embodiment, the base 6 is made of a mixed material of nylon and reinforced fiber by injection molding.

[0024] A heating component is provided on the heating component installation cavity 61 , and the heating component includes a heating body substrate 1 .

[0025] The heating component installation cavity 61 further includes a heat insulation cavity 611 and an electrical connection cavity 612 .

[0026] A sealing gasket 7 is provided between the base 6 and the frame 5 and can seal the heating component installation cavity 61 and the control component installation cavity 62 respectively.

[0027] like Figure 5 As shown, a groove 70 for accommodating the heating element substrate 1 is horizontally opened on the sealing gasket 7 at the heating component installation cavity 61. The sealing gasket 7 separates the upper frame 5 and the heating element substrate 1 so that the upper frame 5 and the heating element substrate 1 are not in contact with each other. This arrangement can prevent the heat of the heating element substrate 1 from being directly transferred to the upper frame 5, and can effectively prevent the upper frame 5 from being overheated. The sealing gasket 7 can not only play a waterproof role, but also play a shock-absorbing, buffering and insulating role.

[0028] Usually, the heating element substrate 1 is made of a glass-ceramic plate or a ceramic plate. Both materials are high temperature resistant and insulating, and are good materials for heating element substrates.

[0029] To improve the anti-stick performance, an anti-stick coating can be applied to the side of the microcrystalline glass plate or ceramic plate that supports food. The other side of the microcrystalline glass plate or ceramic plate does not need to be coated with an anti-stick coating because it needs to be coated with a heating coating.

[0030] Typically, the anti-stick coating is a water-based ceramic layer or a polytetrafluoroethylene layer.

[0031] In this embodiment, the heating element substrate 1 is a microcrystalline glass plate, and a water-based ceramic layer is coated on one side of the microcrystalline glass plate.

[0032] Of course, the heating element substrate 1 is not limited to a glass-ceramic plate or a ceramic plate, and may also be composed of a metal substrate and an insulating layer coated on the metal substrate.

[0033] The heating coating 2 is partially coated and sintered on the heating element substrate 1, and the heating coating 2 is used to generate heat after being energized. The heating coating 2 can be partially and fully covered on the heating element substrate 1, or can be formed by a linear array of multiple rectangular heating coating monomers 21. The heating coating formed by a linear array of multiple rectangular heating coating monomers 21 has the characteristics of small actual heating area and small coating usage, which makes the current of the heating coating pass evenly and more energy-saving.

[0034] Generally, from the perspective of practicality and product positioning, the distance from the first heating coating monomer 21 to the last heating coating monomer 21 is L1, 110mm≤L1≤310mm; the distance between the two electrodes 22 is W1, 150mm≤W1≤210mm; the interval between two adjacent heating coating monomers 21 is W2, 1mm≤W2≤5mm; the length of the electrical connection end extending beyond the heating coating 2 is L2, 15mm≤L2≤45mm.

[0035] When the electric heating plate is designed to be suitable for one or two persons, the distance W1 between the two electrodes 22 is designed to be 190 mm; the distance L1 between the first heating coating monomer 21 and the last heating coating monomer 21 is designed to be 170 mm.

[0036] When the electric heating plate is designed to be used by more than three people, the distance W1 between the two electrodes 22 is designed to be 190 mm; the distance L1 between the first heating coating monomer 21 and the last heating coating monomer 21 is designed to be 290 mm.

[0037] The above sizes are suitable for grilling steaks, chicken wings and other foods.

[0038] like Figure 8 and Fig. 9 As shown, in this embodiment, electrodes 22 are coated on both ends of the rectangular heating coating monomer 21 in the length direction, and the electrodes 22 connect all the heating coating monomers 21 so that all the heating coating monomers 21 form a parallel structure.

[0039] One end of the electrode 22 extends a certain distance away from the heating coating 2 to form an electrical connection end 23. The electrode connection end 23 is used to connect to the power supply circuit to energize the heating coating 2. Usually, an elastic electrode column or electrode sheet is provided on the electric heating plate. When installing the heating component, it is only necessary to align the electrode connection end 23 with the electrode column or electrode sheet and apply pressure to make it tightly connected.

[0040] To improve the conductivity, the electrode 22 is formed by coating and sintering a conductive paste such as silver paste, copper paste or aluminum paste. In this embodiment, the electrode 22 is formed by coating and sintering a silver paste having the lowest resistance.

[0041] In this embodiment, the heating coating 2 is a graphene heating coating. Of course, the heating coating 2 is not limited to the graphene heating coating, and can also be an electric heating film or other coating that can meet the use requirements.

[0042] For insulation, an insulating layer (not shown) is usually coated on the surface of the heat-generating coating 2 .

[0043] like Figures 7 to 9 As shown, the heating element substrate 1 is coated with a protection circuit 24 surrounding the heating coating 2 to prevent leakage of the heating coating. The starting end and the end end of the protection circuit 24 are not connected, and the starting end and the end end of the protection circuit 24 are respectively connected to the control circuit of the electric heating plate.

[0044] The starting point and the end point of the protection circuit 24 are interlaced in the extension direction of the protection circuit 24, so that the protection circuit surrounds the heating coating 2 in all directions at 360 degrees. Since the size of the microcrystalline glass used in the baking tray is not very large, when the microcrystalline glass cracks due to unexpected reasons, it often extends to the edge of the microcrystalline glass. The above protection circuit surrounds the heating coating 2 and is located near the edge of the microcrystalline glass. Therefore, when the microcrystalline glass cracks, the protection circuit will be disconnected, and the control circuit of the electric heating plate can immediately detect the disconnection signal, and then control the heating coating 2 to cut off the power to prevent leakage and ensure the safety of the user.

[0045] In this embodiment, the protection circuit 24 is formed by coating and sintering a conductive paste such as silver paste, copper paste or aluminum paste. In this embodiment, the protection circuit 24 is formed by coating and sintering a silver paste having the smallest resistance.

[0046] Fig. 9 FIG. 2 shows a setting position and direction of the protection circuit 24. Of course, the protection circuit 24 has more than one setting style. Fig.10 The core of the style shown in the figure is to surround the heating coating 360° in all directions without dead angles to ensure that the microcrystalline glass can disconnect the protection circuit 24 when the crack extends to the edge.

[0047] like Figure 8 As shown, in order to further improve the insulation performance, the heating component also includes a mica sheet 3 for insulation arranged on the side of the heating coating 2, and the area of ​​the mica sheet 3 is larger than the area of ​​the heating coating 2 to fully cover the heating coating 2.

[0048] like Figure 7 and Figure 8 As shown, an insulation block 4 for heat insulation is also provided on the outer side of the mica sheet 3. The insulation block 4 can be an aerogel insulation block, an asbestos insulation block or a quartz refractory insulation block.

[0049] In this embodiment, the thermal insulation block 4 is an aerogel thermal insulation block.

[0050] Sensor mounting holes 40 are provided on the mica sheet 3 and the heat insulation block 4 .

[0051] In this embodiment, the mica sheet 3 and the insulation block 4 are both arranged in the insulation cavity 611 .

[0052] Four elastic electrode seats 6121 are provided in the electrical connection cavity 612 , and an elastic electrode 613 is detachably provided on each elastic electrode seat 6121 . The elastic electrode 613 is used to contact the electrode 22 and two ends of the protection circuit 24 .

[0053] The elastic electrode 613 may be a spring sheet or an elastic ejector pin. In this embodiment, the elastic electrode 613 is a spring sheet.

[0054] A sensor mounting platform 614 is provided in the heat-insulating cavity 611, and a sensor 615 is provided on the sensor mounting platform 614. During installation, the sensor mounting platform 614 passes through the mica sheet 3 and the heat-insulating block 4, so that the sensor for measuring temperature can pass through the mica sheet 3 and the heat-insulating block 4 and contact the microcrystalline glass or the heating coating 2 or the insulating layer coated on the heating coating 2, so as to accurately measure the temperature of the microcrystalline glass.

[0055] A control component is provided in the control component installation cavity 62 . The control component includes a PCB board. The PCB board is electrically connected to the heating coating 2 , the protection circuit 24 and the sensor 615 .

[0056] An oil leakage hole 25 is provided at one end of the heating element substrate 1 away from the electrical connection end 23 ; circular chamfers are provided at both ends of the oil leakage hole 25 .

[0057] A base oil leakage hole 63 corresponding to the oil leakage hole 25 is provided on the base 6 , and an annular concave cavity 630 surrounding the oil leakage hole of the base 6 is opened at the upper end of the base oil leakage hole.

[0058] An oil leakage hole sealing ring 71 is provided in the annular concave cavity 630 . The oil leakage hole sealing ring 71 is integrally formed with the sealing gasket 7 . The oil leakage hole sealing ring 71 is provided here to prevent oil from leaking into the base 6 .

[0059] At the lower end of the oil leakage hole of the base 6, an annular flange (not shown) surrounding the base oil leakage hole 63 is provided. Since the annular flange protrudes from the bottom surface of the base oil leakage hole 63, when the oil flows down from the base oil leakage hole 63, the oil will drip into the oil receiving pan along the annular flange and will not spread to the bottom surface of the base 6.

[0060] A power socket 64 is provided on one side of the base 6 close to the control component installation cavity 62 . A socket sealing ring 72 surrounding the power socket 64 is provided on the power socket 64 . The socket sealing ring 72 is integrally formed with the sealing gasket 7 . The socket sealing ring 72 can seal the power socket 64 .

[0061] In this embodiment, Figure 3 As shown, the electrode of the power socket 64 adopts a needle-like protruding structure, which makes it easier to waterproof the entire device.

[0062] A plurality of hollow locking columns 65 are provided on the base 6 around the heating component installation cavity 61 and the control component installation cavity 62 . The sealing gasket 7 is provided with through holes 73 at the locking columns 65 . When the sealing gasket 7 is installed, the through holes 73 are sleeved on the locking columns 65 .

[0063] The frame 5 is provided with threaded holes (not shown) corresponding to the locking columns 65. During assembly, the frame 5 and the base 6 can be tightly connected together by passing bolts from the bottom of the base 6 through the locking columns 65 and screwing them into the threaded holes.

[0064] like Figure 2 As shown, the bottom surface of the base 6 is arranged with a small ground clearance on both sides along the length direction and a large ground clearance in the middle, forming an arch shape. This shape forms a larger space at the oil leakage hole 63 of the base, so an oil collecting pan 8 can be set at the bottom of the base 6.

[0065] The control component also includes a keypad and a panel arranged in the control component installation cavity, through which the machine can be turned on and off and the temperature or power can be adjusted.

[0066] In this solution, a heating component installation cavity 61 and a control component installation cavity 62 are separately provided, and a sealing gasket 7 seals the heating component installation cavity 61 and the control component installation cavity 62 respectively, which can strengthen the sealing structure and make the sealing better; a groove 70 for accommodating the heating element substrate 1 is horizontally provided on the sealing gasket 7, and the sealing gasket 7 separates the frame 5 and the heating element substrate so that the frame 5 and the heating element substrate 1 are not in contact with each other. This setting can prevent the heat of the heating element substrate 1 from being directly transferred to the frame 5, and can effectively prevent the temperature of the frame 5 from being too high. The sealing gasket 7 can not only play a waterproof role, but also play a shock-absorbing, buffering and insulating role; the design of the above protection circuit 24 can disconnect the protection circuit when the heating element substrate 1 breaks or cracks at any position near the edge, so that the control circuit of the baking tray can immediately detect the disconnection signal, and then control the heating coating to cut off the power, prevent leakage, and ensure the safety of the user.

[0067] The heating area of ​​the heating coating 2 of the utility model is concentrated and the heating power is low. This heating method has direct heat generation, high electric heat conversion efficiency and fast temperature rise. This solution can be powered by household AC power, portable mobile power supply or vehicle power supply, and is particularly suitable for outdoor use. When used outdoors, it can not only be used to bake food, but also a teapot can be placed on the baking tray after baking to make tea, thereby realizing multifunctional application.

Claims

1. A multifunctional energy-saving electric baking pan, comprising a base and a frame detachably connected to the base, a heating component is arranged on the base, the heating component comprises a heating body substrate, and is characterized in that: The base has a heating component installation cavity and a control component installation cavity which are independently arranged; A sealing gasket is provided between the base and the frame, which can respectively seal the heating component installation cavity and the control component installation cavity; A groove capable of accommodating the heating element substrate is transversely provided on the sealing gasket at the heating element installation cavity, and the sealing gasket separates the upper frame from the heating element substrate so that the upper frame and the heating element substrate do not contact each other; A heating coating is partially coated and sintered on the heating element substrate; a protection circuit is coated on the heating element substrate and surrounds the heating coating to prevent the heating coating from leaking electricity, the starting end and the ending end of the protection circuit are not connected, and the starting end and the ending end of the protection circuit are staggered in the extension direction of the protection circuit, so that the protection circuit surrounds the heating coating 360° in all directions; A control component is arranged in the control component installation cavity, and the control component is electrically connected to the heating coating and the protection circuit.

2. The multifunctional energy-saving electric baking pan according to claim 1 is characterized in that: The heating component installation cavity includes a heat insulation cavity and an electrical connection cavity; The heating component also includes a mica sheet for insulation and a heat-insulating block for heat insulation; the mica sheet and the heat-insulating block are arranged in the heat-insulating cavity.

3. The multifunctional energy-saving electric baking pan according to claim 2 is characterized in that: Four elastic electrode seats are arranged in the electrical connection cavity, and an elastic electrode is detachably arranged on each elastic electrode seat. The elastic electrode is used to contact the electrode and two ends of the protection circuit.

4. The multifunctional energy-saving electric baking pan according to claim 2 is characterized in that: A sensor mounting platform is provided in the heat insulation cavity, and a sensor is provided on the sensor mounting platform; Sensor mounting holes are provided on the mica sheet and the heat insulation block; The sensor is electrically connected to the control component.

5. The multifunctional energy-saving electric baking pan according to claim 1 is characterized in that: An oil leakage hole is provided at one end of the heating element substrate away from the electrical connection end; a base oil leakage hole corresponding to the oil leakage hole is provided on the base, and an annular concave cavity surrounding the base oil leakage hole is opened at the upper end of the base oil leakage hole; An oil leakage hole sealing ring is arranged in the annular cavity, and the oil leakage hole sealing ring is integrally formed with the sealing gasket; An annular flange surrounding the oil leakage hole of the base is arranged at the lower end of the oil leakage hole of the base.

6. The multifunctional energy-saving electric baking pan according to claim 1 is characterized in that: A power socket is arranged on one side of the base close to the control component installation cavity, and a socket sealing ring surrounding the power socket is arranged on the power socket, and the socket sealing ring is integrally formed with the sealing gasket.

7. The multifunctional energy-saving electric baking pan according to claim 1 is characterized in that: The bottom surface of the base is arranged so that the ground clearance is small on both sides along the length direction and large in the middle to form an arch shape, and an oil receiving pan is arranged at the bottom of the base.

8. The multifunctional energy-saving electric baking pan according to claim 1 is characterized in that: A plurality of hollow locking columns are arranged on the base around the heating component installation cavity and the control component installation cavity, and the sealing gaskets are provided with through holes at the locking columns. When the sealing gaskets are installed, the through holes are sleeved on the locking columns; The frame is provided with threaded holes corresponding to the locking columns. During assembly, bolts are passed through the locking columns from the bottom of the base and screwed into the threaded holes.

9. The multifunctional energy-saving electric baking pan according to claim 1, characterized in that: The control component includes a PCB board, a key board and a panel arranged in the control component installation cavity, and the PCB board is electrically connected to the heating coating and the protection circuit.

10. The multifunctional energy-saving electric baking pan according to claim 1, characterized in that: The base shown is made of injection molding of a mixture of nylon and reinforced fiber; the frame shown is made of die-cast aluminum alloy.

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