Cooking utensil

Abstract

The cooking utensil comprises a machine body, an operation panel and a circuit board, an operation interface is arranged on the front face of the operation panel, the operation interface is exposed to form a part of the outer surface of the machine body, and the circuit board comprises a substrate, a patch component and a plug-in component. The back face of the operation panel abuts against the substrate so that a protection cavity can be defined between the back face of the operation panel and the installation face, facing the operation interface, of the substrate, the patch component is fixed to the side, facing the protection cavity, of the substrate, and at least part of the plug-in component is fixed to the side, back to the protection cavity, of the substrate. The plug-in components are distributed on the left and right sides of the substrate relative to the axis of the machine body in the front-back direction. The protection cavity is defined between the operation panel and the substrate, moisture, moisture, insects and the like can be effectively prevented from intruding into the protection cavity, the patch components are arranged in the protection cavity, the influence of environmental factors on the patch components can be greatly reduced, and guarantee is provided for operation reliability and stability of the patch components.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of household appliances, and particularly relates to a cooking utensil. BACKGROUND

[0002] The existing cooking utensil, taking an electric rice cooker as an example, comprises a machine body and components such as an operation panel, a circuit board and a circuit board support arranged on the machine body. When the electric rice cooker is assembled, the circuit board support is first assembled to the outer shell of the machine body, and the two are assembled to form an assembly, and then the circuit board is assembled to the assembly. The circuit board is provided with both a patch component and a straight insertion component. The patch component is fixed to the circuit board by welding, and the straight insertion component is inserted into the circuit board through a pin. The patch component and the straight insertion component of the existing electric rice cooker are arranged on the side of the circuit board facing the operation panel, so that the other side of the circuit board is close to the heat preservation cover of the electric rice cooker, causing the temperature of the circuit board to be too high, which affects the service life of the circuit board.

[0003] In addition, the existing protection method of the circuit board generally uses three-proof paint as the main protection means. The three-proof paint has excellent adhesion and weather resistance, and can resist the erosion of the external environment to a certain extent to cope with various complex environments that the electric rice cooker may encounter during use, such as dust, cockroaches, humidity, oil stains and the like, so as to ensure the stable operation of the circuit board and prolong the service life. However, there are still some deficiencies in the protection of the circuit board by the three-proof paint, for example, some three-proof paints may age and crack in a long-term high-temperature environment, resulting in a decline in the protection effect. In addition, some three-proof paints may cause environmental pollution, cause allergic reactions of coating personnel, complicate coating operation and have high cost during coating, thereby affecting the production efficiency and cost control of the electric rice cooker.

[0004] The prior art discloses a food processor with a circuit protection structure, which comprises a body shell, a motor and a control module installed in the body shell, the control module comprises a control panel and a circuit board, a circuit protection box is installed between the control panel and the circuit board, a partition plate is arranged in the inner cavity of the circuit protection box to separate the circuit protection box into a first protection recess and a second protection recess, one side of the control panel is provided with a key element, the other side of the control panel is provided with a first welding end face for fixing the key element, the first protection recess is arranged on the first welding end face to avoid the contact between water solution or insects and the first welding end face of the control panel, so that short circuit is avoided, one side of the circuit board is provided with circuit elements, the other side of the circuit board is provided with a second welding end face for fixing the circuit elements, the circuit board is installed in the second protection recess, and the second welding end face is arranged on the side close to the second protection recess, so that the contact between water solution or insects and the second welding end face of the circuit board is avoided, and short circuit accidents are prevented. Practical new type content

[0005] The application provides a cooking utensil to solve the technical problem that the waterproof, moisture-proof and insect-proof effects of the control module of the existing cooking utensil are poor, and the stable operation of the control module is affected.

[0006] The technical scheme adopted by the application is:

[0007] The cooking appliance comprises a body, an operation panel and a circuit board, a front surface of the operation panel is provided with an operation interface, the operation interface is exposed to constitute part of an outer surface of the body, the circuit board comprises a substrate, a SMD component and a plug-in component, a back surface of the operation panel is in abutment with the substrate to enclose a protection cavity between the back surface of the operation panel and a mounting surface of the substrate facing the operation interface, the SMD component is fixed to one side of the substrate facing the protection cavity, and at least part of the plug-in component is fixed to one side of the substrate away from the protection cavity, wherein the plug-in component is distributed on both sides of an axis of the substrate relative to a front-rear direction of the body.

[0008] In the present application, the substrate of the circuit board is in abutment with the back surface of the operation panel to enclose a protection cavity between the back surface of the operation panel and a mounting surface of the substrate facing the operation interface. On the one hand, the abutment of the substrate and the operation panel can save space, making the cooking appliance more compact, improving the space utilization efficiency, and increasing the distance between the substrate and the internal parts of the cooking appliance to prevent mutual interference. On the other hand, the protection cavity enclosed between the operation panel and the substrate can effectively prevent moisture, humidity, insects and the like from entering the protection cavity. The SMD component is arranged in the protection cavity, which can greatly reduce the influence of environmental factors on the SMD component, providing protection for the reliability and stability of the SMD component. For the plug-in component, the plug-in component generally has a large volume and is provided with a shell wrapping it, so the plug-in component itself has dustproof and insect-proof properties. Therefore, fixing at least part of the plug-in component to the outside of the protection cavity can further reduce the distance between the operation panel and the substrate, which can not only make the distance between the operation interface and the copper foil conductive area on the substrate smaller, thereby improving the sensitivity of touch and ensuring the timeliness of response, but also can reduce the electromagnetic interference between the SMD component and the plug-in component arranged back to back, thereby improving the stability and reliability of the circuit. The present application reduces or even eliminates the protection of electrical components by three-proof paint, thereby reducing or avoiding the disadvantages caused by the use of three-proof paint.

[0009] In addition, the present application distributes the plug-in component on both sides of an axis of the substrate relative to a front-rear direction of the body, which can more effectively utilize the space of the substrate, reduce space waste, improve the space utilization rate of the substrate, and more importantly, reduce the interference and mutual influence between the plug-in component and other parts in the surrounding body, thereby ensuring a stable operating environment for the plug-in component.

[0010] At least one of the operation panel and the substrate is provided with a sealing member for sealing the protection cavity.

[0011] In the technical solution, the sealing element is additionally arranged, so that the sealing performance of the protection cavity is further improved, the probability of external liquid, moisture, insects and the like entering the protection cavity through the joint gap between the operation panel and the base plate is reduced, and the protection effect on the components, wiring and the like located in the protection cavity is further improved.

[0012] The back side of the operation panel is provided with a ring rib extending towards the base plate, and the sealing element is arranged on the ring rib.

[0013] In the technical solution, the ring rib serves as an additional fixing point to provide additional support and structural strength, so that the connection between the operation panel and the base plate is more stable, and the loosening of the connection caused by thermal expansion or mechanical vibration is reduced. In addition, the ring rib provides a specific mounting position for the sealing element, so that the mounting and replacement of the sealing element are more simple and fast, and daily maintenance and repair are facilitated. Arranging the sealing element on the ring rib can ensure good contact between the sealing element and the base plate, improve the sealing effect, and effectively prevent external moisture, dust, insects and the like from entering the protection cavity, thereby achieving good protection effect on the electronic components, wiring, welding end face and the like located in the protection cavity.

[0014] The body includes a pot body and a pot cover, the pot body includes an outer cover and a heat preservation cover located on the inner side of the outer cover, the operation panel is arranged on the outer cover, and the circuit board is located between the outer cover and the heat preservation cover.

[0015] During use, the pot cover is frequently moved relative to the pot body to open or cover the cooking cavity of the pot body. Therefore, the operation panel and the circuit board are arranged on the pot body in the technical solution, so that the structure of the pot cover is simplified, the pot cover is easier to manufacture, and the wear or damage of the circuit caused by frequent opening and closing of the pot cover is reduced. In addition, during cooking, the pot cover may be heated due to steam and the like. Arranging the operation panel and the circuit board on the pot body can reduce the problem of touching the hot surface during user operation and improve the user operation experience. Arranging the circuit board between the outer cover and the heat preservation cover can make full use of the redundant space inside the pot body to arrange the circuit board, so that the overall structure of the cooking appliance is more compact, and the miniaturization of the cooking appliance is facilitated.

[0016] The plug-in component and the heat preservation cover have a heat insulation gap therebetween.

[0017] The technical solution predefines a heat insulation gap between the plug-in component and the heat preservation cover, so that the heat transfer from the heat preservation cover to the plug-in component, the base plate and the like during operation of the cooking appliance is reduced, the working temperature of the circuit board is reduced, and the service life of the plug-in component, the base plate and the like is prolonged. In addition, the existence of the heat insulation gap facilitates heat dissipation of the heat preservation cover and the circuit board after the operation of the cooking appliance is completed, and the heat dissipation efficiency is improved.

[0018] The substrate is a flat plate structure, the distance between the substrate and the heat preservation cover gradually increases from the center line of the substrate to the two side edge positions of the substrate, and the plug-in components are provided with a plurality of plug-in components, wherein the plug-in components with a higher height are fixed at positions close to the edge positions of the substrate.

[0019] In the technical solution, the plug-in components with a higher height are fixed at positions close to the edge positions of the substrate, and the distance between the edge positions of the substrate and the heat preservation cover is larger than that in the central region of the substrate, which on the one hand provides installation space for the plug-in components with a higher height, avoids interference with the heat preservation cover, and on the other hand still allows a heat insulation gap between the plug-in components with a higher height and the heat preservation cover, thereby avoiding direct contact between the plug-in components with a higher height and the heat preservation cover, so as to form heat insulation protection for the plug-in components with a higher height. From another perspective, the change in the distance between the basic different regions and the heat preservation cover can make the substrate better adapt to the thermal expansion changes caused by high temperature during the operation of the cooking utensil, reduce internal stress caused by temperature changes, and protect the plug-in components and the plug-in components on the substrate from the influence of thermal expansion. In addition, in combination with the arrangement of distributing the plug-in components on the left and right sides of the axis of the substrate relative to the front and back directions of the body, the plug-in components with a higher height can be distributed on both sides of the edge positions of the substrate, which helps to dissipate heat during use, avoids local overheating and causes the plug-in components to fail to operate, and improves the heat dissipation efficiency of the circuit board.

[0020] The patch components include a patch lamp fixed to the substrate by welding, and the operation panel is provided with a light transmission area opposite to the position of the patch lamp.

[0021] In the technical solution, the light emitted by the patch lamp is emitted through the light transmission area, which can enable the user to intuitively distinguish the operation position on the operation interface, facilitate the user to accurately perform corresponding operations, and improve the user's use experience. Moreover, compared with other light sources, the patch lamp has a thinner thickness and a smaller volume, which can reduce the space occupation of the patch lamp in the circuit board and the protective cavity, optimize the space layout, and make the assembled operation panel and circuit board more compact. In addition, the patch lamp has the advantages of small size, strong shock resistance, low welding defect, low power consumption, etc., thereby improving the durability and reliability of the circuit board. Moreover, the patch lamp can realize automatic production, thereby helping to reduce costs and improve production efficiency.

[0022] The substrate includes a welding area for fixing the patch components and a surrounding edge area adjacent to the welding area, and the back side of the operation panel is provided with a ring rib extending towards the substrate, the ring rib and the surrounding edge area abut along the front and back directions, so that the surrounding edge area is externally arranged on the operation panel.

[0023] The ring rib can be used as an additional fixing point to provide additional support and structural strength, so that the connection between the operation panel and the base plate is more stable, and the loosening of the connection caused by thermal expansion or mechanical vibration is reduced. The abutting mode of the ring rib and the surrounding edge area in the front-back direction can provide better sealing effect and facilitate the assembly of the base plate and the operation panel, thereby improving the assembly efficiency. In addition, during the operation of the cooking utensil, the welding area generates relatively concentrated heat. By arranging the surrounding edge area, the heat of the welding area can be dissipated to the outside through the surrounding edge area, thereby optimizing the heat dissipation performance of the circuit board and prolonging the service life of the electrical components, wiring, welding end face, etc. on the circuit board.

[0024] The operation panel is provided with a positioning column extending towards the base plate, the base plate is provided with a mounting hole, and the operation panel and the base plate are connected through a fastener penetrating the mounting hole and the positioning column; or one of the operation panel and the base plate is provided with a first buckle, and the other is provided with a first buckle position, and the operation panel and the base plate are clamped and fixed through the first buckle and the first buckle position.

[0025] In the technical solution, the detachable connection between the operation panel and the base plate facilitates the disassembly of the two and the maintenance and repair of the electronic components arranged on the base plate, especially the patch components in the protection cavity. Moreover, when one or part of the electronic components on the base plate or the structure of the operation panel is damaged, the damaged component can be disassembled and replaced separately, thereby reducing the replacement cost.

[0026] One of the operation panel and the body is provided with a second buckle, and the other is provided with a second buckle position matched with the second buckle, and the operation panel is clamped and fixed to the body through the second buckle and the second buckle position.

[0027] In the technical solution, the operation panel and the body are clamped and fixed through the second buckle and the second buckle position, which helps to improve the disassembly efficiency between the operation panel and the body, and even no auxiliary tool is needed during the disassembly process. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 It is an assembly view of the operation panel and the circuit board according to an embodiment of the present application;

[0030] Figure 2 It is a sectional view of the operation panel and the circuit board after assembly according to an embodiment of the present application;

[0031] Figure 3 For Figure 2 A enlarged view of A part of the Figure 1;

[0032] Figure 4 An exploded view of the operation panel and the circuit board according to an embodiment of the present application;

[0033] Figure 5 An exploded view of the pot body, the operation panel and the circuit board according to an embodiment of the present application;

[0034] Figure 6 A sectional view of the pot body according to an embodiment of the present application.

[0035] Wherein:

[0036] 1. pot body; 11. outer cover; 111. mounting opening; 12. heat preservation cover;

[0037] 2. operation panel; 21. ring rib; 22. second buckle;

[0038] 3. circuit board; 31. substrate; 32. SMD component; 33. plug-in component;

[0039] 4. protection cavity. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0041] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment can be combined with each other without conflict.

[0042] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] In this application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0045] As shown in Figure 2 , Figure 5 and Figure 6 , a cooking appliance includes a body, an operation panel 2 and a circuit board 3, the front surface of the operation panel 2 is provided with an operation interface exposed to the outside to constitute part of the outer surface of the body, the circuit board 3 includes a substrate 31, a patch component 32 and a plug-in component 33, the back surface of the operation panel 2 abuts against the substrate 31 to form a protection cavity 4 between the back surface of the operation panel 2 and the mounting surface of the substrate 31 facing the operation interface, the patch component 32 is fixed to one side of the substrate 31 facing the protection cavity 4, and at least part of the plug-in component 33 is fixed to one side of the substrate 31 away from the protection cavity 4, wherein the plug-in component 33 is distributed on both sides of the axis of the substrate 31 relative to the front-back direction of the body.

[0046] In an embodiment, the patch components 32 are fixed on the front surface of the substrate 31, and the plug-in components 33 are fixed on the back surface of the substrate 31, so that the patch components 32 and the plug-in components 33 are located on different sides of the substrate 31, reducing the distance between the substrate 31 and the operation panel 2 and improving the touch effect. In another embodiment, the patch components 32 are fixed on the front surface of the substrate 31, part of the plug-in components 33 are fixed on the front surface of the substrate 31, and the other part of the plug-in components 33 are fixed on the back surface of the substrate 31. Preferably, the plug-in components 33 with smaller volume can be fixed on the front surface of the substrate 31. The front surface of the substrate 31 refers to the surface facing the operation panel 2, and the back surface of the substrate 31 refers to the surface facing away from the operation panel 2.

[0047] In the present application, the substrate 31 of the circuit board 3 abuts against the back surface of the operation panel 2, thereby forming a protection cavity 4 between the back surface of the operation panel 2 and the mounting surface of the substrate 31 facing the operation interface. On the one hand, the abutting mode of the substrate 31 and the operation panel 2 can save space, making the cooking appliance more compact, improving the space utilization efficiency, and increasing the distance between the substrate 31 and the internal parts of the cooking appliance to prevent mutual interference. On the other hand, by forming the protection cavity 4 between the operation panel 2 and the substrate 31, the intrusion of moisture, humidity, insects, etc. into the protection cavity 4 can be effectively prevented. The patch components 32 are arranged in the protection cavity 4, which can greatly reduce the influence of environmental factors on the patch components 32, providing protection for the reliability and stability of the operation of the patch components 32. For the plug-in components 33, since the plug-in components 33 generally have a larger volume and are provided with a shell wrapping them, the plug-in components 33 themselves have dustproof and insect-proof properties. Therefore, fixing at least part of the plug-in components 33 outside the protection cavity 4 can further reduce the distance between the operation panel 2 and the substrate 31, which can not only make the distance between the operation interface and the copper foil conductive area on the substrate 31 smaller, thereby improving the touch sensitivity and ensuring the timeliness of the response, but also can reduce the electromagnetic interference between the two types of components, improving the stability and reliability of the circuit. The present application reduces or even eliminates the protection of electrical components by three-proof paint, thereby reducing or avoiding the disadvantages caused by the use of three-proof paint.

[0048] In addition, the present application distributes the plug-in components 33 on the left and right sides of the substrate 31 relative to the axis of the front and back directions of the body, which can more effectively utilize the space of the substrate 31, reduce space waste, improve the space utilization rate of the substrate 31, and more importantly, reduce the interference and mutual influence between the plug-in components 33 and other parts in the surrounding body of the substrate 31, ensuring a stable operating environment for the plug-in components 33.

[0049] As a preferred embodiment of the present application, at least one of the operation panel 2 and the base plate 31 is provided with a sealing member for sealing the protection cavity 4. In this embodiment, by adding a sealing member, the sealing performance of the protection cavity 4 can be further improved, reducing the probability of external liquids, moisture, insects, etc. entering the protection cavity 4 through the joint gap between the operation panel 2 and the base plate 31, further improving the protection effect on the components, wiring, etc. located in the protection cavity 4.

[0050] Preferably, the back side of the operation panel 2 is provided with a ring rib 21 extending towards the base plate 31, and the sealing member is arranged on the ring rib 21. On the one hand, the ring rib 21 can serve as an additional fixing point, providing additional support and structural strength, making the connection between the operation panel 2 and the base plate 31 more stable, reducing the loosening of the connection due to thermal expansion or mechanical vibration, on the other hand, it can provide a clear mounting position for the sealing member, making the installation and replacement of the sealing member more simple and fast, facilitating daily maintenance and repair. By arranging the sealing member on the ring rib 21, it can ensure good contact between the sealing member and the base plate 31, improve the sealing effect, effectively prevent external moisture, dust, insects, etc. from entering the protection cavity 4, thereby providing good protection effect on the electronic components, wiring, soldered end face, etc. located in the protection cavity 4.

[0051] In one embodiment, the sealing member has an annular mounting opening opening towards the operation panel, and the sealing member is inserted and fixed to one end of the ring rib through the annular mounting opening, and the base plate and the sealing member abut and seal in the front-rear direction. In another embodiment, the ring rib is provided with a mounting groove for mounting the sealing member, and the sealing member is sleeved in the mounting groove, and the base plate is provided with a bent edge bent towards the operation panel, and the bent edge and the sealing member abut radially to achieve sealing.

[0052] Of course, the sealing member can also be arranged on the base plate 31, or both the operation panel 2 and the base plate 31 are provided with sealing members to strengthen the sealing effect of the protection cavity 4.

[0053] It should be noted that the present application does not limit the cooking utensil, which can be an electric rice cooker, a pressure cooker, a food processor, a soybean milk machine, an electric stew pot, an air fryer, etc.

[0054] The present application will be further described in detail below with an electric rice cooker as an example:

[0055] As Figure 5 and Figure 6As shown, the appliance includes a pot body 1 and a lid. The pot body 1 includes an outer cover 11 and a heat insulation cover 12 located inside the outer cover 11. The control panel 2 is located on the outer cover 11, and the circuit board 3 is located between the outer cover 11 and the heat insulation cover 12. During use, the lid will frequently move relative to the pot body 1 to open or close the cooking cavity of the pot body 1. Therefore, this technical solution places the control panel 2 and the circuit board 3 on the pot body 1, which simplifies the structure of the lid, making it easier to manufacture and reducing wear or damage to the circuit caused by frequent opening and closing of the lid. Moreover, during cooking, the lid may become hot due to steam, etc. Placing the control panel 2 and the circuit board 3 on the pot body 1 can reduce the problem of users touching the heat during operation and improve the user's operating experience. Placing the circuit board 3 between the outer cover 11 and the heat insulation cover 12 can make full use of the redundant space inside the pot body 1 to arrange the circuit board 3, making the overall structure of the cooking appliance more compact and contributing to the miniaturization of the cooking appliance.

[0056] Preferably, a heat insulation gap exists between the plug-in component 33 and the heat insulation cover 12. By pre-setting a heat insulation gap between the plug-in component 33 and the heat insulation cover 12, heat transfer from the heat insulation cover 12 to the plug-in component 33, the substrate 31, etc., during the operation of the cooking appliance can be reduced, thereby lowering the operating temperature of the circuit board 3 and extending the service life of the plug-in component 33, the substrate 31, etc. In addition, the presence of the heat insulation gap also facilitates heat dissipation by the heat insulation cover 12 and the circuit board 3 after the cooking appliance has finished operating, improving heat dissipation efficiency.

[0057] To achieve a heat insulation gap between the plug-in component 33 and the insulation cover 12, this application can employ any of the following embodiments:

[0058] Implementation method one: such as Figure 6 As shown, the substrate 31 is a flat plate structure. The distance between the substrate 31 and the heat insulation cover 12 gradually increases from the center line of the substrate 31 to the two side edges of the substrate 31. Multiple plug-in components 33 are provided, among which the taller plug-in components 33 are plugged and fixed at the position near the edge of the substrate 31.

[0059] In the first embodiment, the high-height plug-in components 33 are fixedly plugged at positions close to the edge portions of the substrate 31, and the distance between the edge portions of the substrate 31 and the heat preservation cover 12 is larger than that between the central region of the substrate 31 and the heat preservation cover 12. On the one hand, the high-height plug-in components 33 are provided with installation space, avoiding interference with the heat preservation cover 12. On the other hand, the heat insulation gap is still present between the high-height plug-in components 33 and the heat preservation cover 12, avoiding direct contact between the high-height plug-in components 33 and the heat preservation cover 12, thereby forming heat insulation protection for the high-height plug-in components 33. In another aspect, the distance between the different regions and the heat preservation cover 12 changes, which can make the substrate 31 better adapt to the thermal expansion changes caused by high temperature during the operation of the cooking appliance, reduce the internal stress caused by temperature changes, and protect the SMD components 32 and plug-in components 33 on the substrate 31 from the influence of thermal expansion. In addition, in combination with the arrangement of distributing the plug-in components 33 on the left and right sides of the axis of the substrate 31 relative to the front and rear directions of the body, the high-height plug-in components 33 can be distributed on both sides of the edge portions of the substrate 31, which is helpful for heat dissipation of the plug-in components 33 during use, avoiding local overheating and causing the plug-in components 33 to fail to operate, and improving the heat dissipation efficiency of the circuit board.

[0060] The second embodiment is not shown in the drawings. In the second embodiment, the substrate can be provided in a ring structure to adapt to the ring-shaped heat preservation cover, so that the plug-in components can be installed to have a heat insulation gap with the heat preservation cover. Specifically, the substrate can be provided in a curved shape, the central region of which protrudes toward the operating panel, and the two side edge portions of which extend toward the heat preservation cover. The high-height plug-in components are fixedly plugged at positions close to the central region of the substrate, and the low-height plug-in components are fixedly plugged at positions close to the two side edge portions, so that the plug-in components can all have a heat insulation gap with the heat preservation cover.

[0061] As a preferred embodiment of the present application, the SMD components 32 include SMD lamps fixedly welded to the substrate 31, and the operating panel 2 is provided with a light transmission area opposite to the positions of the SMD lamps. The SMD lamp is a lamp bead using surface mounting technology, which can be directly mounted on the substrate 31 and has the characteristics of small size and easy automation production.

[0062] In this embodiment, the light emitted by the patch lamp is emitted through the light-transmitting area, so that the user can intuitively distinguish the operation position on the operation interface, the user can accurately perform the corresponding operation, the user experience is improved, and compared with other light sources, the patch lamp has a smaller thickness and a smaller size, the space occupation of the patch lamp in the circuit board 3 and the protective cavity 4 is reduced, the space layout is optimized, and the operation panel 2 and the circuit board 3 after assembly are more compact. In addition, the patch lamp has the advantages of small size, strong shock resistance, low solder defect, low power consumption, and the like, so that the durability and reliability of the circuit board 3 can be improved. Moreover, the patch lamp can realize automatic production, thereby helping to reduce costs and improve production efficiency.

[0063] As a preferred embodiment of the present application, as shown in Figures 1 to 4 The back side of the operation panel 2 is provided with a ring rib 21 extending towards the substrate 31, the ring rib 21 abuts with the surrounding edge area in the front-rear direction, so that the surrounding edge area is externally arranged on the operation panel 2. In this embodiment, the ring rib 21 can be used as an additional fixing point to provide additional support and structural strength, so that the connection between the operation panel 2 and the substrate 31 is more stable, and the loosening of the connection caused by thermal expansion or mechanical vibration is reduced. The abutting mode of the ring rib 21 and the surrounding edge area in the front-rear direction can provide better sealing effect, and is more convenient for the assembly between the substrate 31 and the operation panel 2, thereby helping to improve the assembly efficiency. In addition, during the operation of the cooking appliance, the heat generated by the soldering area is relatively concentrated. By arranging the surrounding edge area, the heat of the soldering area can be dissipated to the outside through the surrounding edge area, thereby optimizing the heat dissipation performance of the circuit board 3 and prolonging the service life of the electrical components, wiring, soldering end face and the like on the circuit board 3.

[0064] As another embodiment of the present application which is not shown in the figure, the substrate includes a soldering area for fixing the patch component and a surrounding edge area adjacent to the soldering area, and the back side of the operation panel is provided with a ring rib extending towards the substrate. The cross-sectional area of the substrate is smaller than the cross-sectional area of the ring rib, and after the substrate is installed, the surrounding edge area is arranged in the ring rib and abuts with the ring rib in the radial direction.

[0065] The present application does not limit the connection mode of the operation panel and the substrate, and any one of the following embodiments can be adopted:

[0066] Embodiment three: the operation panel 2 is provided with a positioning column extending towards the substrate 31, the substrate 31 is provided with a mounting hole, and the operation panel 2 and the substrate 31 are connected through a fastener penetrating the mounting hole and the positioning column.

[0067] Embodiment four: one of the operation panel 2 and the substrate 31 is provided with a first buckle, and the other is provided with a first buckle position, and the operation panel 2 and the substrate 31 are fixed by the first buckle and the first buckle position.

[0068] Embodiment five: the operation panel 2 is provided with a positioning column extending towards the base plate 31, the base plate 31 is provided with a mounting hole, and one of the operation panel 2 and the base plate 31 is provided with a first buckle and the other is provided with a first buckle position. In the mounting process, the operation panel 2 and the base plate 31 are first coarsely positioned by the first buckle and the first buckle position, and then the operation panel 2 and the base plate 31 are connected together by the fastener penetrating the mounting hole and the positioning column, so as to further improve the stability of the connection between the operation panel 2 and the base plate 31.

[0069] In the above-mentioned embodiments three, four and five, the connection mode of the detachable connection between the operation panel 2 and the base plate 31 facilitates the disassembly of the two and the maintenance and repair of the electronic components provided on the base plate 31, especially the patch components 32 located in the protection cavity 4. Moreover, when one or part of the electronic components on the base plate 31 or the structure of the operation panel 2 is damaged, the damaged part can be individually disassembled and replaced, thereby reducing the replacement cost.

[0070] The application does not limit the connection mode between the operation panel and the body, which can adopt any of the following embodiments:

[0071] Embodiment six: the operation panel and the body are integrally formed. When assembling, the circuit board is mounted on the operation panel.

[0072] Embodiment seven: one of the operation panel and the body is provided with a second buckle, and the other is provided with a second buckle position matched with the second buckle. The operation panel is fixed to the body by the second buckle and the second buckle position. In a preferred embodiment, as shown in Figure 5 The body includes an outer cover 11 provided with a mounting port 111 matched with the operation panel 2. The outer periphery of the operation panel 2 is provided with a plurality of second buckles 22, and the inner edge of the mounting port 111 of the outer cover 11 is provided with a plurality of second buckle positions matched with the second buckles 22. In the specific assembly process, the operation panel 2 and the circuit board 3 can be assembled together to form an assembly, and then the assembly is fixed to the body by the second buckles 22 and the second buckle positions, so as to improve the assembly efficiency. In this embodiment, the operation panel 2 and the body are fixed by the second buckles 22 and the second buckle positions, which helps to improve the disassembly efficiency between the operation panel 2 and the body, and even without auxiliary tools.

[0073] As shown in Figure 1 The operation panel 2 is a specific example of a key type operation panel, but the application is not limited thereto, and a touch type operation panel can also be used.

[0074] The unmentioned part in the application can be realized by using or referring to the existing technology.

[0075] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0076] The above only describes the embodiments of the present application and is not intended to limit the present application. The technical features or structures in the foregoing different embodiments can be combined as needed to form other specific technical solutions. Various modifications and changes can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A cooking appliance comprising a body, an operation panel and a circuit board, a front surface of the operation panel being provided with an operation interface, the operation interface being exposed to constitute a part of an outer surface of the body, the circuit board comprising a substrate, a surface mount component and a plug-in component, characterized in that, The back of the operation panel is in abutment with the base plate to enclose a protection cavity between the back of the operation panel and the mounting surface of the base plate facing the operation interface, the patch component is fixed to one side of the base plate facing the protection cavity, and at least part of the plug-in component is fixed to one side of the base plate away from the protection cavity, wherein the plug-in component is distributed on both sides of the base plate relative to the axis of the front and back directions of the machine body.

2. The cooking appliance according to claim 1, characterized in that, At least one of the operation panel and the base plate is provided with a sealing member for sealing the protection cavity.

3. The cooking appliance according to claim 2, characterized in that, The back side of the operation panel is provided with a ring rib extending towards the base plate, and the sealing member is arranged on the ring rib.

4. The cooking appliance according to claim 1, characterized in that, The machine body comprises a pot body and a pot cover, the pot body comprises an outer cover and a heat preservation cover located on the inner side of the outer cover, the operation panel is arranged on the outer cover, and the circuit board is located between the outer cover and the heat preservation cover.

5. The cooking appliance according to claim 4, characterized in that, There is a heat insulation gap between the plug-in component and the heat preservation cover.

6. The cooking appliance according to claim 5, characterized in that, The base plate is a flat plate structure, the distance between the base plate and the heat preservation cover gradually increases from the center line of the base plate to the edge of the base plate, and the plug-in component is provided with a plurality of plug-in components, wherein the plug-in components with higher height are fixed to positions close to the edge of the base plate.

7. The cooking appliance according to claim 1, characterized in that, The patch component comprises a patch lamp fixed to the base plate by welding, and the operation panel is provided with a light transmission area opposite to the position of the patch lamp.

8. The cooking appliance according to claim 1, characterized in that, The base plate comprises a welding area for fixing the patch component and a surrounding edge area adjacent to the welding area, the back side of the operation panel is provided with a ring rib extending towards the base plate, and the ring rib is in abutment with the surrounding edge area in the front and back directions, so that the surrounding edge area is arranged outside the operation panel.

9. The cooking appliance according to claim 1, characterized in that, The operation panel is provided with a positioning column extending towards the base plate, the base plate is provided with a mounting hole, and the operation panel and the base plate are connected through a fastener penetrating the mounting hole and the positioning column. Alternatively, one of the operation panel and the base plate is provided with a first buckle, and the other is provided with a first buckle position, and the operation panel and the base plate are fixed by the first buckle and the first buckle position.

10. The cooking appliance according to claim 1, characterized in that, One of the operation panel and the machine body is provided with a second buckle, and the other is provided with a second buckle position matched with the second buckle, and the operation panel is fixed to the machine body by the second buckle and the second buckle position.

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