Cooking appliance
Patent Information
- Application Number
- CN202522071958.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-09-26
AI Technical Summary
[0004]为了解决上述现有技术中的组装方式需要较长的导线而导致成本增加、以及需要翻转组装导致组装效率低的技术问题,本实用新型提供了烹饪器具,通过优化结构改变组装方式,可有效缩短导线长度以及省去组装过程中的翻转动作,以降低导线成本和提升组装效率
[0016] 1. The housing of this utility model is provided with a power cord box connected to the heat insulation ring. The power cord box has a wire passage cavity with an opening that opens towards the bottom cover. The power cord box is connected to the inverted heat insulation ring with the opening facing upward. Part of the power cord is confined in the wire passage cavity and electrically connected to the wires in the housing. With this design, when the side shell is independently machined, during base assembly, the heat insulation ring and heating device can be assembled first to form the top cover assembly. Then, the top cover assembly is inverted and assembled with the inverted side shell. Subsequently, the power cord box is connected to the inverted heat insulation ring with its opening facing upwards (i.e., inverted). One end of the power cord is electrically connected to the wire and confined within the wire passage cavity, while the other end passes through the power cord box and extends out of the side shell. Finally, the bottom cover is assembled onto the inverted side shell in an inverted manner. Alternatively, when the side shell and bottom cover are integrally formed, the top cover assembly can be assembled first. Then, the power cord box is connected to the inverted heat insulation ring in an inverted manner. One end of the power cord is electrically connected to the wire and confined within the wire passage cavity, while the other end extends out of the power cord box. Finally, the integrally formed side shell and bottom cover are assembled onto the inverted top cover assembly in an inverted manner, allowing the other end of the power cord to pass through the side shell. Therefore, it can be seen that during the assembly of the base of this utility model, the upper cover assembly, side shell, power cord box, and bottom cover can all be assembled in an inverted manner without any flipping action, thereby improving assembly efficiency. Furthermore, during assembly, the power cord box and heat insulation ring can be assembled before the connection of the wires and power cords, thus shortening the distance between the power cord box and the heating plate, and consequently shortening the length of the wires used. Connection of the power cords can be achieved without reserving extra wire length, thereby reducing wire costs. Secondly, if the power cord box is connected to the side shell, the side shell typically has a horizontal... The extended mounting ears have vertically extending threaded holes. Screws pass through the power cord box and lock it in place. However, the mounting ears are prone to breakage due to their thinness, resulting in an unreliable connection. In this invention, the power cord box is connected to the heat insulation ring. The heat insulation ring has high structural strength and a large space below it, so a higher connection part can be set to connect with the power cord box, thereby enhancing the reliability of the connection between the power cord box and the heat insulation ring. Finally, the power cord box is located inside the housing, and there are no appearance requirements in the design. The space can be large and the structure can be irregular, making it easy for workers to assemble and store the wire harness.
Smart Images

Figure CN224723079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen appliances, and more particularly to cooking utensils. Background Technology
[0002] Existing cooking appliances, such as electric hot pots, include a base and a pot. The base includes a shell, a reflector, and a heating plate. The reflector is mounted on top of the shell, and the heating plate is mounted on the reflector. When in use, the pot is placed on the heating plate so that the heating plate heats the pot. The shell includes a bottom cover, a heat insulation ring, and a side shell located between the bottom cover and the heat insulation ring. The heat insulation ring forms a mounting opening, which is covered by the reflector. A wire connected to the heating plate is located inside the shell. The wire is connected to an external power source via a power cord. Currently, one end of the power cord is located inside the shell and connected to the wire, while the other end is located outside the shell for easy connection to the external power source.
[0003] To prevent the power cord from being pulled and causing connection failure or breakage, it is usually locked to the casing. For cooking appliances with low heating power, such as electric steamers, the heat generated by the heating element has little impact on the temperature rise of the power cord, so a power cord box is not necessary. A support base with two spaced-apart screw posts is simply provided on the bottom cover. The power cord is located between the two screw posts, and the two ends of a crimping plate are connected to the two screw posts by screws to crimp the power cord, thus locking the power cord in place through the cooperation of the crimping plate and the support base. For cooking appliances with high heating power, such as electric hot pots, a power cord box is required to protect and lock the power cord inside the casing, reducing heat transfer from the heating element to the power cord and preventing excessive temperature rise of the power cord, which could pose a safety hazard. For example, the electric hot pot disclosed in prior art CN216438987U includes an integrally formed pot body, a heating device installed on the top of the pot body, a wire connected to the heating device, a detachable heat insulation cover inside the pot body with the opening facing downwards, a hollowed-out portion of the bottom wall of the pot body corresponding to the opening, a cover plate installed on the outside of the bottom wall of the pot body and cooperating with the heat insulation cover to form a heat insulation cavity, the heat insulation cover having a notch connecting the heat insulation cavity and the external space of the heat insulation cover, the power cord extending into the heat insulation cavity through the notch and exiting the outside of the pot body, and the cover plate cooperating with the heat insulation cover to lock the power cord. During assembly, the pot is placed upright with one end of the power cord passing through the bottom wall of the pot. A heat shield is then installed inside the pot, partially covering the power cord. The other end of the power cord is then connected to the heating element's wires. The heating element is then installed on top of the pot to cover the opening at the top. Finally, the pot is flipped upside down and connected to the heating element with screws. The cover plate is also screwed onto the bottom wall of the pot, thus locking the power cord in place through the cooperation of the cover plate and the heat shield. In this assembly process, because the connection of the wires to the power cord occurs before the assembly of the heating element and the pot, a certain length of wire must be left to connect to the power cord inside the casing. This results in excess wire length accumulating loosely inside the pot after assembly, increasing manufacturing costs and potentially interfering with the assembly of other components. Furthermore, the pot must be flipped upside down to assemble the cover plate, making the assembly process complex and time-consuming, thus leading to low assembly efficiency. Utility Model Content
[0004] To address the technical problems of increased costs due to longer wires and low assembly efficiency caused by flipping during assembly in the existing technologies, this invention provides a cooking appliance that, by optimizing the structure and changing the assembly method, can effectively shorten the wire length and eliminate the flipping action during assembly, thereby reducing wire costs and improving assembly efficiency.
[0005] To achieve the above-mentioned technical objectives, the present invention provides a cooking appliance comprising a base and a pot placed on the base. The base includes a housing and a power cord extending from the housing. The housing includes a bottom cover, a heat insulation ring, and a side shell disposed between the bottom cover and the heat insulation ring. The heat insulation ring is provided with a heating device for supporting the pot. The heating device is connected to a wire located inside the housing. The housing contains a power cord box connected to the heat insulation ring. The power cord box has a wire passage cavity with an opening facing the bottom cover. The power cord box is connected to the inverted heat insulation ring with the opening facing upwards. Part of the power cord is confined within the wire passage cavity and electrically connected to the wire inside the housing.
[0006] Preferably, the heat insulation ring has a connecting post extending towards the bottom cover, and the fastener penetrates the top wall of the power cord box and is connected to the connecting post.
[0007] Preferably, the bottom wall of the bottom cover is provided with positioning ribs, which cooperate with the bottom of the power cord box to horizontally position the power cord box.
[0008] Preferably, the power cord box has a first sidewall facing the side shell, and the first sidewall is disposed in close contact with the side shell.
[0009] Preferably, the housing has a corner area, and the power cord box is located in the corner area.
[0010] Preferably, the power cord box has a bracket extending downward from the top wall of the power cord box. The bracket has two spaced-apart connection holes. The power cord is disposed between the two connection holes and is pressed against the bottom of the bracket by a connecting piece. The connecting piece is fixed to the connection hole by fasteners.
[0011] Preferably, the cable passage cavity includes a first cavity and a second cavity arranged sequentially along a first direction. The bracket is disposed in the first cavity. The second cavity has a cable hole extending along the first direction on its side wall adjacent to the first cavity. The cable hole is located outside the first cavity. The wire inside the housing enters the second cavity through the cable hole along the first direction and is electrically connected to the end of the power cord located in the second cavity.
[0012] Preferably, the bottom cover closes the opening; or, the housing is further provided with a box cover, which is connected to the power cord box to close the opening.
[0013] Preferably, the side shell is independently machined, the top of the side shell is provided with an inwardly extending mounting edge, the heat insulation ring has a connecting part, the mounting edge is located on the side of the connecting part facing the bottom cover, and the connector passes through the mounting edge and is connected and fixed to the connecting part.
[0014] Preferably, the side shell is a paint-free plastic part.
[0015] By adopting the above technical solution, this utility model has the following advantages:
[0016] 1. The housing of this utility model is provided with a power cord box connected to the heat insulation ring. The power cord box has a wire passage cavity with an opening that opens towards the bottom cover. The power cord box is connected to the inverted heat insulation ring with the opening facing upward. Part of the power cord is confined in the wire passage cavity and electrically connected to the wires in the housing. With this design, when the side shell is independently machined, during base assembly, the heat insulation ring and heating device can be assembled first to form the top cover assembly. Then, the top cover assembly is inverted and assembled with the inverted side shell. Subsequently, the power cord box is connected to the inverted heat insulation ring with its opening facing upwards (i.e., inverted). One end of the power cord is electrically connected to the wire and confined within the wire passage cavity, while the other end passes through the power cord box and extends out of the side shell. Finally, the bottom cover is assembled onto the inverted side shell in an inverted manner. Alternatively, when the side shell and bottom cover are integrally formed, the top cover assembly can be assembled first. Then, the power cord box is connected to the inverted heat insulation ring in an inverted manner. One end of the power cord is electrically connected to the wire and confined within the wire passage cavity, while the other end extends out of the power cord box. Finally, the integrally formed side shell and bottom cover are assembled onto the inverted top cover assembly in an inverted manner, allowing the other end of the power cord to pass through the side shell. Therefore, it can be seen that during the assembly of the base of this utility model, the upper cover assembly, side shell, power cord box, and bottom cover can all be assembled in an inverted manner without any flipping action, thereby improving assembly efficiency. Furthermore, during assembly, the power cord box and heat insulation ring can be assembled before the connection of the wires and power cords, thus shortening the distance between the power cord box and the heating plate, and consequently shortening the length of the wires used. Connection of the power cords can be achieved without reserving extra wire length, thereby reducing wire costs. Secondly, if the power cord box is connected to the side shell, the side shell typically has a horizontal... The extended mounting ears have vertically extending threaded holes. Screws pass through the power cord box and lock it in place. However, the mounting ears are prone to breakage due to their thinness, resulting in an unreliable connection. In this invention, the power cord box is connected to the heat insulation ring. The heat insulation ring has high structural strength and a large space below it, so a higher connection part can be set to connect with the power cord box, thereby enhancing the reliability of the connection between the power cord box and the heat insulation ring. Finally, the power cord box is located inside the housing, and there are no appearance requirements in the design. The space can be large and the structure can be irregular, making it easy for workers to assemble and store the wire harness.
[0017] 2. The heat insulation ring has a connecting post extending towards the bottom cover, and the fastener penetrates the top wall of the power cord box and connects to the connecting post. This design allows for a higher connecting post to enhance its structural strength, thereby increasing the reliability of the connection between the power cord box and the heat insulation ring. Furthermore, the top wall of the power cord box only needs a through hole for the fastener to pass through. Compared to using mounting ears on the outside of the power cord box for fasteners to pass through and connect to the connecting post, this technical solution results in a simpler power cord box structure and is easier to manufacture.
[0018] 3. The bottom wall of the bottom cover is provided with positioning ribs, which cooperate with the bottom of the power cord box to horizontally position the power cord box. This design ensures that the relative positions of the power cord box and the bottom cover are fixed through the cooperation of the positioning ribs and the power cord box, thereby ensuring the relative positions of the bottom cover, side shell, and heat insulation ring, so as to facilitate the subsequent connection of the bottom cover and the heat insulation ring.
[0019] 4. The power cord box has a first sidewall facing the side shell, which is flush against the side shell. This design allows the first sidewall to act as a reinforcing rib of the side shell, effectively preventing the side shell from bending or deforming.
[0020] 5. The housing has a corner area, where the power cord box is located. This design keeps the power cord box away from the heating plate, thereby reducing the heat transferred from the heating plate to the power cord box and thus lowering the temperature of the internal power cord. In addition, the corner area has more space, which facilitates wiring operations for employees.
[0021] 6. The power cord box has a bracket extending downwards from the top wall of the power cord box. The bracket has two spaced-apart connection holes. The power cord is located between the two connection holes and is pressed into the bottom of the bracket by a connecting piece. The connecting piece is fixed to the connection holes by fasteners. This design allows the power cord inside the power cord box to be locked inside the power cord box by the connecting piece before the bottom cover is assembled, preventing the power cord from shifting and coming out of the power cord box during bottom cover assembly due to lack of securing, thus simplifying the assembly of the base.
[0022] 7. The cable passage includes a first cavity and a second cavity arranged sequentially along a first direction. A support is disposed within the first cavity. The second cavity has a cable-passing hole extending along the first direction on its side wall adjacent to the first cavity. The cable-passing hole is located outside the first cavity. The wire inside the housing enters the second cavity through the cable-passing hole along the first direction and is electrically connected to the end of the power cord located in the second cavity. This design ensures that the wire always runs along the first direction throughout its journey into the second cavity, preventing bending and thus extending the lifespan of the wire. In addition, the second cavity also provides space for accommodating the electrical connection between the wire and the end of the power cord.
[0023] 8. The bottom cover closes the opening; or, the housing also has an internal cover that connects to the power cord box to close the opening. This design completely isolates the power cord inside the heating chamber from the heating device by sealing the opening, thereby further reducing the transfer of heat from the heating device to the power cord and thus reducing the temperature rise of the power cord.
[0024] 9. The side shell is independently machined, with an inwardly extending mounting edge at the top. The heat insulation ring has a connecting part, and the mounting edge is located on the side of the connecting part facing the bottom cover. The connector passes through the mounting edge and connects and fixes to the connecting part. With this design, during assembly, the heat insulation ring is first inverted, and then the inverted side shell and the inverted heat insulation ring are assembled and fixed by the connector. In addition, the power cord box and bottom cover are also assembled inverted, which further reduces the flipping action and improves assembly efficiency.
[0025] 10. The side shell is a paint-free plastic part. Since the power cord box is built into and fixed on the heat insulation ring, the side shell does not require any additional design structure. This ensures that the side shell has a uniform wall thickness, facilitates material flow during molding, and achieves a high-gloss or other decorative appearance, avoiding any appearance defects. Attached Figure Description
[0026] Figure 1 This is an exploded view of the shell when it is inverted in Embodiment 1 of this utility model;
[0027] Figure 2 This is an exploded view of the power supply box and part of the housing in Embodiment 1 of this utility model;
[0028] Figure 3 This is a bottom view of the power cord box in Embodiment 1 of this utility model;
[0029] Figure 4 This is a cross-sectional view of the power cord box in Embodiment 1 of this utility model;
[0030] Figure 5 This is an exploded view of the power cord, power cord box, and part of the housing in Embodiment 1 of this utility model;
[0031] Figure 6 This is a partial structural diagram of the bottom cover in Embodiment 1 of this utility model;
[0032] Figure 7 This is an exploded view of the inverted shell and power cord box in Embodiment 1 of this utility model;
[0033] Figure 8 This is an inverted cross-sectional view of the power cord box after it has been assembled into the housing in Embodiment 1 of this utility model;
[0034] Figure 9 for Figure 8 A magnified view of part A in the diagram;
[0035] Figure 10 for Figure 8 A magnified view of part B in the diagram;
[0036] In the diagram, 100 is the shell; 110 is the bottom cover; 111 is the positioning rib; 112 is the third notch; 120 is the heat insulation ring; 121 is the flange; 122 is the connecting post; 130 is the side shell; 1301 is the body; 1302 is the mating part; 131 is the limiting rib; 132 is the mounting edge; 133 is the connector; 134 is the second notch; 200 is the power cord; 300 is the reflector; 400 is the heating plate; 500 is the power cord box; 501 is the through hole; 502 is the side wall; 503 is the insertion rib; 510 is the first side wall; 511 is the first notch; 520 is the bracket; 521 is the connecting hole; and 530 is the connecting piece.
[0037] 01. Wire passage cavity; 011. First cavity; 012. Second cavity; 0121. Wire hole. Detailed Implementation
[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," and "bottom," etc., which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device / component 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 the present invention.
[0039] Example 1
[0040] Combination Figures 1 to 10As shown, the cooking appliance provided in this embodiment includes a base and a pot (not shown) placed on the base. The base includes a housing 100 and a power cord 200 passing through the housing 100. The housing 100 includes a bottom cover 110, a heat insulation ring 120, and a side shell 130 disposed between the bottom cover 110 and the heat insulation ring 120. The side shell 130 is independently formed. A heating device is provided on the heat insulation ring 120. The heating device includes a reflector 300 and a heating plate 400 mounted on the reflector 300. The heating plate 400 is connected to a wire located inside the housing 100. A power cord box 500 connected to the heat insulation ring 120 is provided inside the housing 100. The power cord box 500 is a cover structure with an opening facing the bottom cover 110. The power cord box 500 has a wire passage cavity 01 inside, that is, the wire passage cavity 01 has an opening that opens towards the bottom cover 110. Part of the power cord 200 is confined in the wire passage cavity 01 and electrically connected to the wire inside the housing 100. With this design, since the power cord box 500 is mounted on the heat insulation ring 120, during assembly, the heat insulation ring 120, reflector 300, and heating plate 400 (i.e., heating device) can be assembled first to form the upper cover assembly. Then, the upper cover assembly is inverted and assembled with the inverted side shell 130. Subsequently, the power cord box 500 is installed inverted on the inverted heat insulation ring 120. One end of the power cord 200 is electrically connected to the wire and is confined in the wire passage cavity 01. The other end passes through the power cord box 500 and extends out of the side shell 130. Finally, the bottom cover 110 is assembled inverted onto the side shell 130. Therefore, it can be seen that during the assembly of the base in this embodiment, the upper cover assembly, side shell 130, power cord box 500, and bottom cover 110 can all be assembled in an inverted manner, without any flipping action, thereby improving assembly efficiency. Furthermore, during assembly, the assembly of the power cord box 500 and the heat insulation ring 120 can precede the connection of the wires to the power cord 200, thus shortening the distance between the power cord box 500 and the heating plate 400, thereby shortening the length of the wires used. The connection of the power cord 200 to the wires can be achieved without reserving extra wire length, thereby reducing wire costs. Secondly, if the power cord box 500 is connected to the side shell, the side shell will... Typically, mounting ears that extend laterally are provided, with threaded holes extending vertically. Screws pass through the power cord box and lock it in place. However, the mounting ears are prone to breakage due to their thinness, resulting in an unreliable connection. In this embodiment, the power cord box is connected to the heat insulation ring 120. The heat insulation ring 120 has high structural strength and a large space below it, so a higher connection part can be provided to connect to the power cord box 500, thereby enhancing the reliability of the connection between the power cord box 500 and the heat insulation ring. Finally, the power cord box 500 is located inside the housing 100. There are no appearance requirements in its design, and the space can be large and the structure can be irregular, making it easy for workers to assemble and store the wire harness.
[0041] like Figures 1 to 10All diagrams are in an inverted state. For ease of description below, the direction of the heat insulation ring 120 is defined as upward and the direction of the bottom cover 110 is defined as downward. That is, the heat insulation ring 120 is installed on the top of the side shell 130 and the bottom cover 110 is installed on the bottom of the side shell 130 and the bottom of the power cord box 500.
[0042] Specifically, such as Figure 2 As shown, in this embodiment, the edge of the heat insulation ring 120 is provided with a flange 121 that bends towards the bottom cover 110, and the inner side of the top of the side shell 130 is provided with a limiting rib 131 extending towards the heat insulation ring 120. The limiting rib 131 and the top surface of the side shell 130 form a limiting step. The flange 121 cooperates with the limiting step to fix the relative position of the heat insulation ring 120 and the side shell 130. The top of the side shell 130 is also provided with an inwardly extending mounting edge 132. The mounting edge 132 is an annular edge with a through hole. The heat insulation ring 120 is provided with a connecting part, which is a threaded hole. The mounting edge 132 is located on the side of the heat insulation ring 120 facing the bottom cover 110. The connector 133 (screw) passes through the through hole and is fixed to the connecting part to install and fix the side shell 130 on the heat insulation ring 120. In this way, during assembly, the heat insulation ring 120 containing the heating plate 400 and the reflector 300 is first inverted. Then, the inverted side shell 130 is assembled with the inverted heat insulation ring 120 and fixed by the connector 133 to form the top cover assembly. Subsequently, the power cord box 500 and the bottom cover 110 are also assembled inverted, which further reduces the flipping action and improves the assembly efficiency.
[0043] In this embodiment, the heat insulation ring 120 is provided with a connecting post 122 extending towards the bottom cover 110. Fasteners (screws) penetrate the top wall of the power cord box 500 and connect to the connecting post 122. This design allows for a higher connecting post 122 to enhance its structural strength, thereby increasing the reliability of the connection between the power cord box 500 and the heat insulation ring 120. Furthermore, the top wall of the power cord box 500 only needs to have a through hole for the fastener to pass through. Compared to setting mounting ears on the outside of the power cord box for the fastener to pass through and connect to the connecting post, the power cord box 500 structure of this technical solution is simpler and easier to manufacture.
[0044] In this embodiment, the cross-section of the housing 100 is approximately rectangular, comprising four sides and an arc-shaped transition section connecting adjacent sides. The area inside the housing 100 corresponding to the arc-shaped transition section is a corner area. The housing 100 has four corner areas, and the power cord box 500 is located in one of these corner areas. Since the heating plate 400 is located in the center of the housing, placing the power cord box 500 in one of the corner areas allows the power cord box 500 to be located away from the heating plate 400, thereby reducing the heat transferred from the heating plate 400 to the power cord box 500, and thus reducing the temperature of the internal power cord. In addition, the corner area has a relatively large space, so placing the power cord box 500 in the corner area also facilitates wiring operations for employees.
[0045] Preferably, the power cord box 500 has a first sidewall 510 facing the side shell 130. In this embodiment, the first sidewall 510 is an arc-shaped wall adapted to the arc-shaped transition portion. The first sidewall 510 is disposed close to the corner portion of the side shell 130, that is, the first sidewall 510 is close to the arc-shaped transition portion. With this design, by making the first sidewall 510 close to the side shell 130, the first sidewall 510 can act as a reinforcing rib of the side shell, effectively preventing the side shell 130 from bending and deforming.
[0046] To improve the reliability of the power cord box 500 installed on the heat insulation ring 120, in this embodiment, the heat insulation ring 120 is provided with a plurality of connecting posts 122 that are spaced apart along the extension direction of the first side wall 510. The top wall of the power cord box 500 is provided with a plurality of through holes 501. Fasteners pass through the through holes 501 and are connected to the connecting posts 122. The power cord box 500 is connected and fixed to the plurality of connecting posts 122 by the plurality of fasteners.
[0047] It is understood that in other embodiments of this utility model, the power cord box may also be located in the area between two corner areas inside the housing, in which case the first side wall of the power cord box is a straight wall that is in close contact with the side of the housing.
[0048] like Figure 6 , Figures 8 to 10As shown, when the power cord box 500 is assembled onto the heat insulation ring 120, to facilitate the subsequent assembly of the bottom cover 110, the bottom wall of the bottom cover 110 in this embodiment is provided with a positioning rib 111. The shape of the positioning rib 111 matches the shape of the bottom of the power cord box 500. The power cord box 500 includes a side wall 502 and an insertion rib 503 located on the bottom surface of the side wall and extending towards the bottom cover 110. The insertion rib 503 and the bottom surface of the side wall 502 form a limiting step. The insertion rib 503 is inserted into the space enclosed by the positioning rib 111. Within the area, the positioning rib 111 abuts against the bottom surface of the side wall so that the bottom of the power cord box 500 cooperates with the positioning rib 111, thereby achieving horizontal positioning of the power cord box 500 and horizontal positioning of the bottom cover 110 through the power cord box 500. This ensures the fixation of the relative positions of the power cord box 500 and the bottom cover 110, and further ensures the fixation of the relative positions of the bottom cover 110, the side shell 130, and the heat insulation ring 120, so as to facilitate the subsequent connection of screws through the bottom cover 110 and the heat insulation ring 120.
[0049] It is understood that in other embodiments of this utility model, the positioning ribs may also be intermittently arranged along the outer periphery of the power cord box; or the positioning ribs may be inserted into the power cord box to achieve horizontal positioning of the power cord box.
[0050] Furthermore, to enhance the pre-positioning effect of the bottom cover 110, the side shell 130 in this embodiment includes a body 1301 and a mating portion 1302 located at the lower end of the body 1301. The wall thickness of the mating portion 1302 is less than the wall thickness of the body 1301, so that a stepped surface is formed on the lower end surface of the body 1301 outside the mating portion 1302. The side wall of the bottom cover 110 stops and engages with the stepped surface. With this design, when the inverted bottom cover 110 and the inverted side shell 130 are assembled, the bottom cover 110 covers the outside of the mating portion 1302. After pressing the bottom cover 110 so that the side wall of the bottom cover 110 abuts against the stepped surface, the relative position of the side shell 130 and the bottom cover 110 can be fixed, thereby further enhancing the pre-positioning effect of the bottom cover 110 and facilitating the subsequent screw connection between the two.
[0051] After the bottom cover 110 and the side shell 130 are assembled, the bottom wall of the bottom cover 110 covers the opening of the wire cavity 01. In this way, the power cord in the heating cavity is completely isolated from the heating device by sealing the opening, thereby further reducing the transfer of heat from the heating device to the power cord and thus reducing the temperature rise of the power cord.
[0052] To further facilitate the assembly of the base, such as Figure 1 and Figure 2As shown, in this embodiment, the power cord box 500 has a bracket 520 extending downward from the top wall of the power cord box. The bracket 520 is a hollow support sleeve. Two connection holes 521 are provided at intervals at the bottom of the support sleeve. The connection holes 521 are threaded holes. One of the through holes 501 is located inside the support sleeve and between the two connection holes 521. The other end of the power cord 200 is limited between the two connection holes 521 and is pressed onto the bottom of the bracket 520 by a connecting piece 530. The connecting piece 530 has a "U" shaped structure and is fixed to the connection hole 521 by fasteners (screws). Thus, the power cord 200 is locked by the connecting piece 530. The first sidewall 510 has a first notch 511, the bottom of the side shell 130 has a second notch 134, and the sidewall of the bottom cover 110 has a third notch 112. The closed end of the third notch 112 corresponds to the first notch 511, so that the third notch 112, the first notch 511, and the second notch 134 cooperate to form an outlet channel for the other end of the power cord 200 to pass through the power cord box 500 and the housing 100. With this design, before the bottom cover 110 is assembled, a portion of the power cord 200 can be locked inside the power cord box 500 by the connecting piece 530, preventing the power cord 200 from shifting and coming out of the power cord box 500 during the assembly of the bottom cover 110 due to the power cord 200 not being fixed, thereby simplifying the assembly of the base.
[0053] In addition, such as Figure 3 and Figure 4 As shown, the cable passage cavity 01 in this embodiment includes a first cavity 011 and a second cavity 012 arranged sequentially along a first direction. A bracket 520 is disposed in the first cavity 011. The top wall of the second cavity 012 is higher than the top wall of the first cavity 011, so that the top wall of the power cord box forms a stepped structure. The side wall of the second cavity 012 adjacent to the side wall of the first cavity 011 forms the side wall of the first cavity 011, and is partially higher than the top wall of the first cavity 011. The side wall of the second cavity 012 adjacent to the first cavity 011 is provided with a cable hole 0121 extending along the first direction. The cable hole 0121 is located outside the first cavity 011, that is, the cable hole 0121 is disposed in the second cavity 012 adjacent to the side wall of the first cavity 011 and is higher than the top wall of the first cavity 011. The wires in the housing 100 enter the second cavity 012 through the cable hole 0121 along the first direction and are electrically connected to the end of the power cord 200 located in the second cavity 012. This design ensures that the wire always runs along the first direction throughout its journey into the second cavity 012, preventing it from bending and thus extending the wire's service life. In addition, the second cavity 012 also provides space for the wire to be electrically connected to the end of the power cord 200.
[0054] It is understood that in other embodiments of this utility model, a cover is also provided inside the housing. The cover is hinged to the power cord box or can be separated from the power cord box. The opening can be closed by connecting the cover to the power cord box. With this design, the power cord inside the heating chamber can be completely isolated from the heating device by closing the opening, thereby further reducing the transfer of heat from the heating device to the power cord and thus reducing the temperature rise of the power cord.
[0055] It is understood that in other embodiments of this utility model, the bottom wall of the bottom cover includes a bottom plate and a cover plate that are independently machined and formed. The bottom plate is provided with a clearance hole for the power cord box to extend out. The cover plate is located on the side of the bottom plate away from the heat insulation ring. The cover plate and the bottom plate are connected by screws to cover the opening of the cable passage cavity.
[0056] Finally, in this embodiment, the side shell 130 is a paint-free plastic part. Since the power cord box 500 is built into and fixed on the heat insulation ring 120, the side shell 130 does not require any additional design structure, which ensures that the side shell 130 has a uniform wall thickness, facilitates material flow during molding, and achieves a high-gloss and other decorative textures, avoiding appearance defects.
[0057] It is understood that in other embodiments of this utility model, the side shell can also be integrally formed with the bottom cover. In this case, when assembling the base, the top cover assembly (i.e., the heat insulation ring, reflector and heating plate) can be assembled first. Then, the power cord box is connected to the inverted heat insulation ring in an inverted manner. One end of the power cord is electrically connected to the wire and is confined in the wire passage cavity, while the other end passes out of the power cord box. Finally, the integrally formed side shell and bottom cover are assembled to the inverted top cover assembly in an inverted manner, and the other end of the power cord passes out of the shell.
[0058] In addition to the preferred embodiments described above, there are other embodiments of this utility model. Those skilled in the art can make various changes and modifications based on this utility model. As long as they do not depart from the spirit of this utility model, they should all fall within the scope defined in the claims of this utility model.
Claims
1. A cooking appliance, comprising a base and a pot placed on the base, the base comprising a housing and a power cord extending from the housing, the housing comprising a bottom cover, a heat insulation ring, and a side shell disposed between the bottom cover and the heat insulation ring, the heat insulation ring having a heating device for supporting the pot, the heating device being connected to a wire located within the housing, characterized in that, The housing contains a power cord box connected to the heat insulation ring. The power cord box has a cable passage cavity with an opening that opens towards the bottom cover. The power cord box is connected to the inverted heat insulation ring with the opening facing upwards. Part of the power cord is confined within the cable passage cavity and electrically connected to the conductors inside the housing.
2. The cooking appliance as described in claim 1, characterized in that, The heat insulation ring is provided with a connecting post extending towards the bottom cover, and the fastener penetrates the top wall of the power cord box and is connected to the connecting post.
3. The cooking utensil as described in claim 1, characterized in that, The bottom wall of the bottom cover is provided with positioning ribs, which cooperate with the bottom of the power cord box to horizontally position the power cord box.
4. The cooking utensil as described in claim 1, characterized in that, The power cord box has a first sidewall facing the side shell, and the first sidewall is disposed in close contact with the side shell.
5. The cooking appliance as described in claim 1, characterized in that, The housing has a corner area, and the power cord box is located in the corner area.
6. The cooking appliance as described in claim 1, characterized in that, The power cord box has a bracket extending downward from the top wall of the power cord box. The bracket has two spaced-apart connection holes. The power cord is located between the two connection holes and is pressed against the bottom of the bracket by a connecting piece. The connecting piece is fixed to the connection hole by fasteners.
7. The cooking utensil as described in claim 6, characterized in that, The cable passage includes a first cavity and a second cavity arranged sequentially along a first direction. The bracket is disposed in the first cavity. The second cavity has a cable hole extending along the first direction on its side wall adjacent to the first cavity. The cable hole is located outside the first cavity. The wire inside the housing enters the second cavity along the first direction through the cable hole and is electrically connected to the end of the power cord located in the second cavity.
8. The cooking appliance as described in claim 1, characterized in that, The bottom cover closes the opening; or, the housing is further provided with a box cover, which is connected to the power cord box to close the opening.
9. The cooking appliance as described in claim 1, characterized in that, The side shell is independently machined and formed. The top of the side shell is provided with an inwardly extending mounting edge. The heat insulation ring has a connecting part. The mounting edge is located on the side of the connecting part facing the bottom cover. The connector passes through the mounting edge upward and is connected and fixed to the connecting part.
10. The cooking appliance as described in claim 1, characterized in that, The side shell is a paint-free plastic part.
Citation Information
Patent Citations
Electric food warmer
CN216438987U