Cooking utensil easy to assemble
By using a plug-in and socket structure between the PCB bracket and the main body, combined with snap-fit and threaded connections, the problem of the electronic control device detaching from the main body during assembly is solved, ensuring the stable installation of the circuit board and improving the connection stability and safety of the cooking appliance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG KANGHE ELECTRIC CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-21
AI Technical Summary
During the assembly process of existing cooking appliances, the electronic control device is prone to detaching from the main body, resulting in unstable connection, electrical safety hazards, and reduced reliability and service life.
The PCB bracket is connected to the main body by plugging and socketing, combined with snap-fit structure and threaded connection, to ensure that the electronic control device can be installed stably even when the base is not assembled; the circuit board is positioned from the top and bottom by positioning blocks and spring clips to improve stability.
It achieves a stable connection of the electronic control device during transportation and use, reduces the risk of electrical safety accidents, and improves the reliability and service life of cooking appliances.
Smart Images

Figure CN224140574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a cooking utensil that is easy to assemble. Background Technology
[0002] In today's society, with the significant improvement in people's quality of life, the electrification and intelligence of family kitchens are increasing, and cooking utensils, as the core equipment in the kitchen, are becoming increasingly important. Consumers' demands for cooking utensils are no longer limited to basic cooking functions, but rather they are placing more stringent requirements on their performance, ease of operation, safety, and reliability.
[0003] Existing cooking appliances typically consist of a main body, a base, and an electronic control unit. The electronic control unit is responsible for precisely controlling various cooking functions, and its installation and securing method directly determines the overall performance of the appliance. During the assembly process, the connection between the base and the main body, as well as the connection between the electronic control unit and the main body, require close coordination and cooperation. If the electronic control unit is not securely installed, it can lead to a series of serious problems.
[0004] For example, if the appliance needs to be moved before the base is assembled to the main body, the electronic control device is prone to detachment due to the lack of an effective limiting mechanism. Once detached, the electronic control device cannot be securely mounted on the main body. During transportation, the cooking appliance will experience various bumps and vibrations; during use, it may also encounter collisions or impacts. In these situations, the unstable electronic control device is easily damaged, causing the cooking appliance to malfunction. More seriously, if the electronic control device comes into contact with conductive parts after detachment, it could potentially cause electrical safety accidents such as short circuits or leakage, which would not only further damage the cooking appliance itself but also pose a serious threat to the user's life and property.
[0005] Furthermore, existing cooking appliances have significant shortcomings in the design of their electronic control devices, particularly in the positioning and securing of the circuit board. The circuit board, as the core component of the electronic control device, integrates various precision electronic components and complex circuit connections. If it is not stably and reliably secured within the mounting cavity, the circuit board can easily wobble when the cooking appliance is subjected to external vibrations and impacts, leading to poor circuit connections, loosening of electronic components, or even damage. These problems not only significantly reduce the reliability and lifespan of the cooking appliance but also increase the user's maintenance costs and usage risks, causing considerable inconvenience.
[0006] In summary, existing cooking appliances have many shortcomings in terms of assembly structure and connection relationships. Therefore, there is an urgent need to design a cooking appliance that is easy to assemble. By optimizing the assembly structure and connection relationships of the main body, base, and electronic control device, the ease of assembly, structural stability, and reliability of use can be improved, thereby promoting the further development of the cooking appliance industry and meeting the market demand for high-quality, high-performance cooking appliances. Utility Model Content
[0007] The present invention aims to solve the problem that the electronic control device of existing cooking utensils is easy to detach from the main body during the assembly process, and to provide a cooking utensil that is easy to assemble.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an easy-to-assemble cooking appliance, comprising a body, a base detachably assembled on the body, and an electronic control device assembled on the body, wherein the electronic control device includes a PCB bracket, the body has a mounting post for positioning the PCB bracket, and the base is adapted to cooperate with the lower end of the mounting post.
[0009] The PCB bracket has a first end and a second end arranged at intervals. The first end has at least one insertion part that is inserted into the body along a first direction, and the second end has a sleeve part that is sleeved on the mounting post along the first direction.
[0010] The main body and the PCB bracket are provided with a snap-fit structure. The snap-fit structure is configured to restrict the PCB bracket from moving relative to the main body in the opposite direction to the first direction and thus prevent it from detaching when the base is not assembled to the main body.
[0011] Furthermore, the plug-in portion protrudes from the PCB bracket, and the body is provided with a plug-in groove that mates with the plug-in portion, the groove opening facing the opposite direction to the first direction.
[0012] Furthermore, the socket protrudes from the PCB bracket and has a through hole that mates with the mounting post. The socket is configured such that, when the base is assembled to the body, it can abut against the base to fix the PCB bracket in the first direction.
[0013] Furthermore, the lower end of the mounting post is provided with a threaded countersunk hole, and the base has an assembly hole that fits into the lower end of the mounting post. The base is configured such that a screw passes through the assembly hole and engages with the threaded countersunk hole to achieve a fixed connection with the body.
[0014] Furthermore, the snap-fit structure includes a snap fastener disposed on the PCB bracket, and the body has a locking position for the snap fastener to engage.
[0015] Furthermore, the snap-fit structure also includes a protrusion located at the snap-fit position, the protrusion having a first surface and a second surface arranged along a first direction; the snap fastener has a guide surface, the guide surface being configured to guide the snap fastener to slide relative to the first surface to the second surface and then engage during the assembly of the PCB bracket to the body.
[0016] Furthermore, the first surface and the guide surface are configured as inclined surfaces with the same inclination direction.
[0017] Furthermore, the electronic control device also includes a circuit board, and the PCB support is provided with a mounting cavity for accommodating the circuit board. The wall of the mounting cavity is provided with a fastener, which is used to position the substrate of the circuit board in the mounting cavity.
[0018] Furthermore, the fastener includes a positioning block and a spring clip. The positioning block is used to position the bottom surface of the circuit board substrate, and the spring clip is used to position the top surface of the circuit board substrate. The cooperation between the positioning block and the spring clip positions the circuit board from both the top and bottom directions.
[0019] Furthermore, the spring clip includes an elastic support portion and a wedge-shaped portion located at the top of the elastic support portion. The elastic support portion is configured to elastically deform towards the outside of the sidewall of the mounting cavity under the action of the substrate of the circuit board. The wedge-shaped portion is configured to guide the substrate of the circuit board into the mounting cavity along the inclined surface of the wedge-shaped portion and to position the top surface of the substrate of the circuit board.
[0020] Preferably, the cooking appliance is a rice cooker, pressure cooker, oven, or air fryer. All of these cooking appliances can adopt the technical solution of this utility model to achieve easy assembly and stable connection.
[0021] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects:
[0022] 1. The PCB bracket of this utility model is assembled with the body through a plug-in part at the first end and a sleeve part at the second end, achieving initial positioning between the PCB bracket and the body. The plug-in part is inserted into the body along the first direction, and the sleeve part is sleeved on the mounting post along the same direction, allowing the PCB bracket to be quickly and accurately positioned onto the body during assembly without complex alignment operations. Simultaneously, the snap-fit structure between the body and the PCB bracket restricts the PCB bracket from moving relative to the body in the opposite direction of the first direction and thus preventing detachment, ensuring the connection stability between the PCB bracket and the body. This assembly structure effectively prevents the electrical control device (PCB bracket) from detaching from the body due to vibration or external force during assembly on the production line. It ensures that the electrical control device is securely mounted on the body even when the base is not assembled, reducing the risk of short circuits, leakage, and other electrical safety accidents caused by vibration and impact during transportation or subsequent use, leading to poor circuit connections. This protects the life and property safety of users.
[0023] 2. The mounting post of this utility model has a threaded countersunk hole at its lower end, and the base has an assembly hole that fits into the lower end of the mounting post. The base is fixed to the main body by screws passing through the assembly hole and engaging with the threaded countersunk hole. When the base is assembled to the main body, the sleeve portion abuts against the base, further securing the PCB bracket in the first direction. This design creates a tight, integrated structure between the PCB bracket, the main body, and the base, preventing loosening or detachment even during transportation or use, even if subjected to collisions or impacts.
[0024] 3. The PCB bracket of this utility model has a mounting cavity for accommodating the circuit board. The wall of the mounting cavity is provided with fasteners, including positioning blocks and spring clips, which position the circuit board from the bottom and top surfaces of the substrate, respectively. The positioning blocks ensure the stability of the circuit board in the bottom direction, and the elastic support portion of the spring clips can elastically deform under the action of the circuit board substrate. The wedge-shaped portion guides the circuit board substrate into the mounting cavity and positions it on the top surface. This omnidirectional fixing method allows the circuit board to remain stable when the cooking appliance is subjected to external vibrations and impacts, avoiding problems such as poor circuit connections, loose electronic components, or even damage caused by shaking. This significantly improves the reliability and service life of the cooking appliance, reduces user maintenance costs and usage risks, and provides users with a more stable and reliable user experience. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.
[0026] Figure 1 This is a schematic diagram of the assembly structure of the cooking appliance body, base, and electronic control device according to an embodiment of this application;
[0027] Figure 2 This is an exploded view of the main body, base, and electronic control device of the cooking appliance according to an embodiment of this application;
[0028] Figure 3 This is a partial structural diagram of the main body of an embodiment of this application;
[0029] Figure 4 for Figure 3 Enlarged view of point A;
[0030] Figure 5 This is a schematic diagram of the assembly of the main body and the electronic control device according to an embodiment of this application;
[0031] Figure 6 for Figure 5 Enlarged view of point B;
[0032] Figure 7 This is a schematic diagram of the structure of the electronic control device according to an embodiment of this application;
[0033] Figure 8 This is an exploded view of the electronic control device according to an embodiment of this application;
[0034] Figure 9 A side view of the PCB bracket according to an embodiment of this application;
[0035] Figure 10 First isometric view of the PCB bracket according to an embodiment of this application;
[0036] Figure 11 This is a second isometric view of the PCB bracket according to an embodiment of this application;
[0037] Figure 12 for Figure 9 Enlarged view of point C.
[0038] Figure label:
[0039] 100. Body; 110. Mounting post; 111. Lower end; 1111. Threaded countersunk hole; 120. Insertion slot; 200. Base; 210. Assembly hole; 300. Electrical control device; 310. PCB bracket; 311. First end; 3111. Insertion part; 312. Second end; 3121. Sleeve part; 31211. Through hole; 313. Mounting cavity; 314. Fastener; 3141. Positioning block; 3142. Spring clip; 31421. Elastic support part; 31422. Wedge-shaped part; 320. Circuit board; 400. Snap-fit structure; 410. Snap-fit; 411. Guide surface; 420. Protrusion; 421. First surface; 422. Second surface. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0042] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," etc., mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0044] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0045] Example:
[0046] In this embodiment, a rice cooker is used as an example to illustrate the cooking appliance. However, it should be noted that the technical solution of this utility model is also applicable to other types of cooking appliances such as pressure cookers, ovens, and air fryers.
[0047] Please see Figures 1 to 4 The cooking appliance of this embodiment includes a main body 100, a base 200 detachably assembled onto the main body 100, and an electronic control device 300 assembled onto the main body 100. The electronic control device 300 includes a PCB support 310. The main body 100 has a mounting post 110 for positioning the PCB support 310. The base 200 is adapted to cooperate with the lower end 111 of the mounting post 110. During assembly, the electronic control device 300 is first initially assembled with the main body 100, and then the base 200 is assembled onto the main body 100 to complete the final assembly.
[0048] In this embodiment, the main body 100 serves as the primary structure of the cooking appliance, providing a foundation for the installation and fixation of other components. Its upper part typically houses components directly related to cooking, such as the inner pot and heating element. In this embodiment, the structures related to the connection between the electronic control device 300 and the base 200 mainly include mounting posts 110 for positioning the PCB bracket 310, as well as insertion slots 120 and locking mechanisms that mate with the PCB bracket 310. The mounting posts 110 are positioned at specific locations on the main body 100, and their number depends on actual design requirements; one or more posts can be provided to ensure stable support and positioning of the PCB bracket 310.
[0049] In this embodiment, the base 200 is detachably assembled onto the body 100. Its main function is to provide stable support for the entire cooking appliance and, together with the body 100, form an enclosed space to protect the internal electrical components, etc.
[0050] Please see Figure 7 In this embodiment, the electronic control device 300 includes components such as a PCB bracket 310 and a circuit board 320. In this embodiment, the PCB bracket 310 has a first end 311 and a second end 312 arranged at intervals. The first end 311 has at least one insertion portion 3111, and the second end 312 has a sleeve portion 3121 that is fitted onto the mounting post 110 along a first direction. By assembling the PCB bracket 310 with the body 100 through the insertion portion 3111 of the first end 311 and the sleeve portion 3121 of the second end 312, preliminary positioning between the PCB bracket 310 and the body 100 is achieved. The insertion portion 3111 is inserted into the body 100 along the first direction, and the sleeve portion 3121 is fitted onto the mounting post 110 along the same direction, allowing the PCB bracket 310 to be quickly and accurately positioned onto the body 100 during assembly without complex alignment operations.
[0051] Please see Figure 5 and Figure 6 In this embodiment, a snap-fit structure 400 is provided between the main body 100 and the PCB support 310. The snap-fit structure 400 is configured to prevent the PCB support 310 from moving relative to the main body 100 in the opposite direction to the first direction and thus preventing it from detaching when the base 200 is not assembled to the main body 100. This ensures the connection stability between the PCB support 310 and the main body 100. When this assembly structure is assembled on the production line, it can effectively prevent the electronic control device 300 from detaching from the main body 100 due to vibration or external force during movement, greatly reducing the assembly error rate and improving assembly efficiency.
[0052] Please continue reading. Figure 7 In one embodiment, the plug-in portion 3111 protrudes from the PCB bracket 310, and the body 100 is provided with a plug-in groove 120 that mates with the plug-in portion 3111. The opening of the plug-in groove 120 faces the opposite direction to the first direction. The initial positioning of the PCB bracket 310 on the body 100 is achieved through the engagement of the plug-in portion 3111 and the plug-in groove 120. It is understood that in this embodiment, there may be multiple plug-in portions 3111 disposed at the first end 311 of the PCB bracket 310, and correspondingly, multiple plug-in grooves 120 are provided on the body 100.
[0053] In one embodiment, the socket portion 3121 protrudes from the PCB bracket 310 and has a through hole 31211 that mates with the mounting post 110. The socket portion 3121 is configured such that, when the base 200 is assembled to the body 100, it abuts against the base 200 to fix the PCB bracket 310 in a first direction. When the base 200 is assembled onto the body 100, the socket portion 3121 abuts against the base 200, further fixing the PCB bracket 310.
[0054] Please see Figures 2 to 4In one embodiment, the lower end 111 of the mounting post 110 is provided with a threaded countersunk hole 1111, and the base 200 has an assembly hole 210 that mates with the lower end 111 of the mounting post 110. The base 210 is configured such that a screw passes through the assembly hole 210 and engages with the threaded countersunk hole 1111 to achieve a fixed connection with the body 100. In this embodiment, the lower end 111 of the mounting post 110 is provided with a threaded countersunk hole 1111 for fixed connection with the base 200 by screws. The base 200 engages with the threaded countersunk hole 1111 of the lower end 111 of the mounting post 110 by screws passing through the assembly hole 210, thereby achieving a firm connection with the body 100 and facilitating the assembly and disassembly of the base and the body. In addition, when the base 200 is assembled onto the body 100, the base 200 also interacts with the sleeve portion 3121 of the PCB bracket 310 to further fix the position of the PCB bracket 310 in the first direction.
[0055] Please continue reading. Figure 5 and Figure 6 In one embodiment, the snap-fit structure 400 further includes a snap fastener 410 disposed on the PCB support 310, and the body 100 has a locking position for snap-fit engagement of the snap fastener 410. In this embodiment, the locking position can be configured as a protrusion or a groove. Through the engagement of the snap fastener with the protrusion or groove, the movement of the PCB support 310 relative to the body in the opposite direction to the first direction is effectively restricted.
[0056] In one embodiment, the latch is configured as a protruding structure. In this embodiment, the latching structure 400 includes a protrusion 420 disposed on the body 100, the protrusion 420 having a first surface 421 and a second surface 422 disposed along a first direction. The latch 410 has a guide surface 411, which is configured to guide the latch 410 to slide relative to the first surface 421 to the second surface 422 and then engage during the assembly of the PCB bracket 310 to the body 100.
[0057] In one embodiment, the first surface 421 and the guide surface 411 are configured as inclined surfaces with the same tilt direction. When the operator pushes the PCB bracket 310 closer to the body 100, the guide surface 411 of the latch 410 first contacts the first surface 421 of the protrusion 420. Under the pushing force of the PCB bracket 310, the latch 410 slides relative to the first surface 421. As the sliding continues, the latch 410 gradually approaches the second surface 422. When the latch 410 slides to the second surface 422, it will lock onto the second surface 422 under its own elastic force. At this time, the latching structure 400 restricts the PCB bracket 310 from moving relative to the body 100 in the opposite direction to the first direction and thus preventing it from disengaging. Even when the base 200 is not assembled to the body 100, the PCB bracket 310 can maintain a stable connection with the body 100. This latching structure 400 design is not only simple to operate but also provides a firm and reliable connection, effectively solving the problem that the electronic control device is easily detached from the main body during the assembly process of traditional cooking utensils.
[0058] Please see Figures 8 to 12 In one embodiment, the PCB support 310 is further provided with a mounting cavity 313 for accommodating the circuit board 320. The wall edge of the mounting cavity 313 is provided with a fastener 314, which is used to stably position the substrate of the circuit board 320 in the mounting cavity 313 to ensure the stable installation of the circuit board 320 on the PCB support 310.
[0059] In one embodiment, the fastener 314 includes a positioning block 3141 and a spring clip 3142. The positioning block 3141 is used to position the bottom surface of the substrate of the circuit board 320, and the spring clip 3142 is used to position the top surface of the substrate of the circuit board 320. The cooperation of the positioning block 3141 and the spring clip 3142 positions the circuit board 320 from both the top and bottom directions, ensuring that the circuit board 320 is securely and reliably installed on the PCB bracket 310.
[0060] In one embodiment, the spring clip 3142 includes an elastic support portion 31421 and a wedge-shaped portion 31422 located at the top of the elastic support portion 31421. The elastic support portion 31421 is configured to elastically deform towards the outside of the sidewall of the mounting cavity 313 under the action of the substrate of the circuit board 320. The wedge-shaped portion 31422 is configured to guide the substrate of the circuit board 320 into the mounting cavity 313 along the inclined surface of the wedge-shaped portion 31422 and to position the top surface of the substrate of the circuit board 320. The elastic deformation of the elastic support portion 31421 and the guiding effect of the wedge-shaped portion make the installation of the circuit board 320 more convenient and reliable.
[0061] During the installation process, the operator first aligns the bottom surface of the circuit board 320 substrate with the mounting cavity 313, and then pushes it into the mounting cavity 313. During this pushing process, the circuit board 320 substrate first contacts the wedge-shaped portion 31422 of the spring clip 3142. Due to the inclined design of the wedge-shaped portion 31422, the circuit board 320 substrate enters the mounting cavity 313 along the inclined surface under the guidance of the wedge-shaped portion 31422. During this process, the elastic support portion 31421 of the spring clip 3142 elastically deforms towards the outside of the side wall of the mounting cavity 313 under the action of the circuit board 320 substrate, providing sufficient space for the circuit board 320 substrate to enter smoothly. When the bottom surface of the circuit board 320 substrate contacts the positioning block 3141, the positioning block 3141 positions the bottom surface of the circuit board 320 substrate, and simultaneously, the wedge-shaped portion 31422 of the spring clip 3142 returns to its initial position under the restoring force of the elastic support portion 31421, positioning the top surface of the circuit board 320 substrate. The positioning block 3141 and the spring clip 3142 work together to position the circuit board 320 from both the top and bottom, ensuring the stable installation of the circuit board 320 on the PCB bracket 310.
[0062] In this embodiment, during the assembly process of the main body 100, base 200, and electronic control device 300, the electronic control device 300 is first initially assembled with the main body 100. The operator holds the PCB bracket 310, aligns the insertion portion 3111 of the first end 311 with the insertion slot 120 on the main body 100, and inserts the insertion portion 3111 into the insertion slot 120 along the first direction; simultaneously, the sleeve portion 3121 of the second end 312 of the PCB bracket 310 is aligned with the mounting post 110 on the main body 100, and then the sleeve portion 3121 is fitted onto the mounting post 110 along the first direction. The fitting precision between the through hole 31211 of the sleeve portion 3121 and the mounting post 110 is moderate, ensuring a smooth fitting process while providing some radial support to the PCB bracket 310 after fitting. During this process, the PCB bracket 310 forms a preliminary connection with the body 100 through the insertion part 3111 at the first end 311 and the socket part 3121 at the second end 312, thus completing the preliminary assembly. After the preliminary assembly is completed, the snap-fit structure 400 also begins to function.
[0063] Before or after assembling the PCB bracket 310 onto the body 100 (depending on the actual production process), the circuit board 320 needs to be mounted onto the PCB bracket 310. The mounting cavity 313 on the PCB bracket 310 is used to accommodate the circuit board 320. The size and shape of the mounting cavity 313 are designed according to the specifications of the circuit board 320 to ensure that the circuit board 320 can be tightly mounted within it. The fasteners 314 along the walls of the mounting cavity 313 then perform a positioning function.
[0064] After assembling the electronic control device 300 with the main body 100 and installing the circuit board 320 on the PCB bracket 310, the final assembly of the base 200 with the main body 100 and the electronic control device 300 is performed. The operator picks up the base 200, aligning the mounting hole 210 on the base 200 with the lower end 111 of the mounting post 110 on the main body 100. Since the socket 3121 of the PCB bracket 310 has already been fitted onto the mounting post 110 during the previous assembly process, the base 200 gradually abuts against the socket 3121 as it is brought closer to the main body 100. Once the base 200 and socket 3121 are fully abutted, the base 200 further secures the PCB bracket 310 in the first direction. Then, the operator uses a screw, passing it through the mounting hole 210 of the base 200 and screwing it into the countersunk hole 1111 of the lower end 111 of the mounting post 110. Through this threaded connection, the base 200 and the body 100 are firmly connected, and the PCB bracket 310 is also stably fixed between the body 100 and the base 200, forming a tight whole.
[0065] Cooking appliances are subject to various external forces and vibrations during use. However, this invention fully considers these factors, ensuring the stability of the connections between components. During assembly, the PCB bracket 310 is initially positioned with the main body 100 via the insertion part 3111 and the socket part 3121. Furthermore, the snap-fit structure 400 effectively prevents the electronic control device 300 from detaching from the main body due to vibration or external forces during movement. This ensures that the electronic control device is securely installed on the main body even when the base is not assembled. This reduces the risk of electrical safety accidents such as short circuits and leakage caused by vibration and impact during transportation or subsequent use, leading to poor circuit connections. This protects the user's life and property safety.
[0066] Furthermore, after the base 200 is installed, the structure of the entire cooking appliance is made more stable through the abutment between the base 200 and the sleeve part 3121 and the threaded connection between the base 200 and the body 100. Even if it is subjected to bumps and vibrations during transportation, the components are not prone to loosening or detachment. When the cooking appliance is working, such as when a rice cooker is cooking rice, the inner pot will vibrate due to heating. This vibration will be transmitted to the body 100 and the components connected to it. However, due to the reasonable assembly structure design of this utility model, the connection between the PCB bracket 310 and the body 100 and the base 200 is firm and reliable, which can effectively resist the impact of this vibration, ensure the normal operation of the electronic control device 300, and thus ensure the stable performance of the cooking appliance. It will not cause problems such as unstable electrical connections due to vibration, and extend the service life of the cooking appliance.
[0067] In summary, this utility model, through its unique structural design, including the connection method between the PCB bracket 310 and the main body 100, the setting of the snap-fit structure 400, the mounting structure of the circuit board 320 on the PCB bracket 310, and the assembly method of the base 200 with the main body 100 and the electronic control device 300, achieves easy assembly of the cooking appliance while ensuring the connection stability of each component after assembly. It effectively solves the problems of the electronic control device easily detaching from the main body and the unstable fixing method in existing cooking appliances during the assembly process, and has significant practical value and market prospects.
[0068] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A cooking appliance that is easy to assemble, comprising a body, a base detachably assembled on the body, and an electronic control device assembled on the body, the electronic control device comprising a PCB support, the body having a mounting post for positioning the PCB support, and the base being adapted to engage with the lower end of the mounting post; characterized in that: The PCB bracket has a first end and a second end arranged at intervals. The first end has at least one insertion part that is inserted into the body along a first direction, and the second end has a sleeve part that is sleeved on the mounting post along the first direction. The main body and the PCB bracket are provided with a snap-fit structure. The snap-fit structure is configured to restrict the PCB bracket from moving relative to the main body in the opposite direction to the first direction and thus prevent it from detaching when the base is not assembled to the main body.
2. The cooking appliance of claim 1, wherein, The plug-in portion protrudes from the PCB bracket, and the body has a plug-in groove that mates with the plug-in portion, with the groove opening facing the opposite direction to the first direction.
3. The cooking appliance of claim 1, wherein, The socket protrudes from the PCB bracket and has a through hole that mates with the mounting post. The socket is configured such that, when the base is assembled to the body, it can abut against the base to fix the PCB bracket in the first direction.
4. The cooking appliance of claim 1, wherein, The lower end of the mounting post is provided with a threaded countersunk hole, and the base has an assembly hole that fits into the lower end of the mounting post. The base is configured such that a screw passes through the assembly hole and engages with the threaded countersunk hole to achieve a fixed connection with the body.
5. The cooking appliance of claim 1, wherein, The snap-fit structure includes a snap fastener disposed on the PCB bracket, and the body has a locking position for the snap fastener to engage.
6. The cooking appliance of claim 5, wherein, The snap-fit structure further includes a protrusion located at the snap-fit position, the protrusion having a first surface and a second surface arranged along a first direction; the snap fastener has a guide surface, the guide surface being configured to guide the snap fastener to slide relative to the first surface to the second surface and then snap together during the process of assembling the PCB bracket to the body.
7. The cooking appliance of claim 6, wherein, The first surface and the guide surface are configured as inclined surfaces with the same inclination direction.
8. The cooking appliance of claim 1, wherein, The electronic control device also includes a circuit board. The PCB support is provided with a mounting cavity for accommodating the circuit board. The wall of the mounting cavity is provided with a fastener, which is used to position the substrate of the circuit board in the mounting cavity.
9. The cooking appliance of claim 8, wherein, The fastener includes a positioning block and a spring clip. The positioning block is used to position the bottom surface of the circuit board substrate, and the spring clip is used to position the top surface of the circuit board substrate.
10. The cooking appliance of claim 9, wherein, The spring clip includes an elastic support portion and a wedge-shaped portion located at the top of the elastic support portion. The elastic support portion is configured to elastically deform towards the outside of the sidewall of the mounting cavity under the action of the substrate of the circuit board. The wedge-shaped portion is configured to guide the substrate of the circuit board into the mounting cavity along the inclined surface of the wedge-shaped portion and to position the top surface of the substrate of the circuit board.