Electric cooker with filtering function
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANJIANG HALLSMART ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional electric slow cookers have difficulty separating oil and impurities during the stewing process, affecting the clarity and taste of the soup. They also heat unevenly, leading to the risk of overflow and reducing ease of use and cooking quality.
A filter element with an inclined surface and filter holes was designed, combined with a removable grease collection tray, an adjustable guide plate and an annular heating tube to increase the contact area, and equipped with a temperature sensor for real-time temperature control.
It achieves efficient separation of oil and precise filtration of broth, ensuring uniform heating and safety, and improving stewing results and user experience.
Smart Images

Figure CN224440966U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric slow cooker technology, and in particular to an electric slow cooker with a filtering function. Background Technology
[0002] Electric slow cookers, a common kitchen appliance, are widely used in home cooking and are favored for their ability to slow-cook food at low temperatures for extended periods, preserving its nutrients and flavor. Traditional electric slow cookers typically consist of an outer pot, a main pot, and a lid, using a heating element to cook the food inside. However, in practical use, electric slow cookers present two main technical problems. First, the grease and impurities produced during cooking are difficult to separate effectively, affecting the clarity and taste of the broth, requiring users to perform additional filtering, increasing the complexity of use. Second, the steam and liquid circulation within the pot is not optimized enough, easily leading to overflow or uneven heating, affecting cooking results and safety. These problems reduce the ease of use and cooking quality of electric slow cookers, urgently requiring improvements in structural design to enhance user experience and meet diverse cooking needs. Utility Model Content
[0003] The purpose of this invention is to provide an electric slow cooker with a filtering function to overcome the shortcomings of the prior art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] This application discloses a filter element disposed inside a pot. The upper opening of the filter element has an outwardly extending hook-on portion that abuts against the upper opening of the outer pot. The pot lid covers the upper opening of the outer pot and is positioned above the filter element. The outer wall of the filter element has several filter holes. The filter element has an inclined surface at an angle to the horizontal plane, with the filter holes located below the inclined surface. The bottom of the filter element has a removable grease collection tray, which is connected to the filter element via a snap-fit structure. The inner side of the pot lid has an adjustable guide plate, which is connected to the pot lid via bolts. The bottom of the outer pot has an annular heating tube, which is connected to the bottom of the outer pot via a heat-conducting plate. The outer wall of the filter element has several guide holes, which are located above the filter holes. The top of the pot lid has a removable vent cover, which is connected to the pot lid via vent holes.
[0006] Preferably, the snap-fit structure of the grease collection tray includes several snap-fit claws and snap-fit grooves. The snap-fit claws are located at the edge of the grease collection tray, and the snap-fit grooves are located at the bottom of the filter element. The snap-fit claws and snap-fit grooves cooperate with each other to realize the disassembly and fixation of the grease collection tray.
[0007] Preferably, the guide plate is connected to the inside of the pot lid 2 by a guide plate fixing adjustment bolt, and the flow path of the soup is changed by adjusting the angle of the guide plate.
[0008] Preferably, the heat-conducting plate of the annular heating tube has a honeycomb structure. The honeycomb structure of the heat-conducting plate increases the contact area with the bottom of the outer pot and improves the heating uniformity.
[0009] Preferably, the diameter of the flow guide hole is smaller than the diameter of the filter hole, and there are several flow guide holes, which are evenly distributed on the outer side wall of the filter element.
[0010] Preferably, a temperature sensor is provided on the inner side of the pot lid. The temperature sensor is connected to the control circuit through a wire to monitor the temperature inside the pot in real time and adjust the heating power.
[0011] Compared with existing technologies, the advantages of this utility model are as follows: This utility model discloses an electric slow cooker with a filtering function, solving the problems of difficult oil separation, inconvenient broth filtering, and uneven heating in traditional electric slow cookers during stewing. By setting a filter element with an inclined surface and filter holes inside the pot, combined with a removable oil collection tray, oil is effectively separated and collected. The inclined surface design guides the flow of broth, improving filtering efficiency. The guide holes on the outer wall of the filter element work together with the adjustable guide plate inside the pot lid to optimize the broth circulation path and prevent overflow. The annular heating tube combined with the honeycomb heat-conducting plate increases the contact area and ensures uniform heating. The pot lid is equipped with a temperature sensor to monitor the temperature in real time and adjust the heating power, improving cooking safety and convenience. The height of the filter element is adjustable to adapt to the needs of different ingredients. Through structural optimization, this utility model achieves efficient oil separation, precise broth filtering, and uniform heating, significantly improving stewing results and user experience. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is an exploded view of the structure of one embodiment of the present invention.
[0014] Figure 3 This is a schematic diagram of the snap-fit structure between the filter element and the grease collection tray in an embodiment of this utility model.
[0015] Figure 3a This is an enlarged schematic diagram of a buckle gripper according to the present invention.
[0016] Figure 4 This is a schematic diagram of the guide plate in an embodiment of this utility model.
[0017] Figure 4a This is a schematic diagram of the vent cover.
[0018] Figure 5 This is a schematic diagram of the structure of the annular heating tube in an embodiment of the present invention. Detailed Implementation
[0019] To make the objectives, technical solutions, and beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.
[0020] The embodiments of this utility model will be described below based on its overall structure. An electric slow cooker with a filtering function...
[0021] For ease of description, the terminology used in this manual is based on the placement of an electric slow cooker with a filtration function under normal use, such as... Figure 1 As shown, the opening end of the electric slow cooker is defined as the upper end, the bottom as the lower end, the inside of the pot body as the inner side, and the outside as the outer side. The connection methods include, but are not limited to, fixed connection, detachable connection, and sliding connection.
[0022] Reference Figure 1 This utility model provides an electric slow cooker with a filtering function, comprising an outer pot 1, a lid 2, a pot body 3, and a filter element 4. The outer pot 1 is a container with an opening at the top, used to hold broth and ingredients, and is fixedly connected to the pot body 3 via its bottom. The lid 2 covers the opening at the top of the outer pot 1, sealing the interior space to achieve the stewing function. The filter element 4 is disposed inside the outer pot 1, used to filter oil and impurities from the broth. The pot body 3 is the main structure of the electric slow cooker, containing a heating device and a control system, providing heat to the outer pot 1 and supporting the entire device. Through a reasonable layout, the above structure integrates stewing and filtering functions, effectively improving the quality of the broth.
[0023] like Figure 2 As shown, the upper opening of the filter element 4 has an outwardly extending hook-up portion 5. The hook-up portion 5 has a ring-shaped structure, with its outer diameter slightly larger than the inner diameter of the upper opening of the outer pot 1, allowing it to abut against the edge of the upper opening of the outer pot 1, thereby suspending and fixing the filter element 4 inside the outer pot 1. The thickness of the hook-up portion 5 is, for example, 2 to 3 millimeters, to ensure sufficient strength and stability. The hook-up portion 5 allows the filter element 4 to be securely positioned without additional fasteners, while also facilitating disassembly and cleaning, simplifying the structure of the device and improving ease of use.
[0024] Reference Figure 1 and Figure 2The filter element 4 has several filter holes 6 on its outer side wall. These filter holes 6 are circular, for example, with a diameter of 1 to 2 millimeters, and are evenly distributed on the lower outer side wall of the filter element 4. They allow broth to pass through while blocking larger impurities. The filter element 4 also has an inclined surface 7 at an angle to the horizontal plane. This inclined surface 7 is located in the upper middle part of the filter element 4, with an inclination angle of, for example, 30 to 45 degrees. All filter holes 6 are located below the inclined surface 7. The design of the inclined surface 7 guides the flow of broth, causing oil, due to its lower density, to tend to accumulate above the inclined surface 7, thereby reducing the likelihood of oil flowing out through the filter holes 6 and significantly improving the oil filtration effect.
[0025] like Figure 3 As shown, the bottom of the filter element 4 is provided with a removable grease collection tray 8. The grease collection tray 8 has a shallow disc-shaped structure, and its outer diameter matches the inner diameter of the bottom of the filter element 4. It is connected to the filter element 4 by a snap-fit structure 9. The snap-fit structure 9 includes several snap-fit claws 17 and snap-fit grooves 18. The snap-fit claws 17 are located on the edge of the grease collection tray 8, for example, four evenly distributed claw-shaped protrusions. The snap-fit grooves 18 are located on the inner wall of the bottom of the filter element 4, and their shape matches the snap-fit claws 17. During installation, the snap-fit claws 17 are aligned with the snap-fit grooves 18, inserted, and rotated to fix the filter element 4. The grease collection tray 8 facilitates the collection of deposited grease and impurities. It can be disassembled and cleaned separately, improving the cleaning efficiency of the filter element 4. Figure 3a The shape of the clip 17 is shown in detail. For easy disassembly, a small hole is provided through the clip groove (outer periphery of the filter element) so that the user can push the clip out with a screwdriver.
[0026] Reference Figure 4 The inner side of the pot lid 2 is equipped with a detachable guide plate 33. The guide plate 33 is a thin, roughly rectangular plate, which may be made of stainless steel or high-temperature resistant plastic. It connects to the inner side of the pot lid 2 through openings in the guide plate. A guide plate fixing adjustment bolt 22 is correspondingly provided at the bottom of the inner side of the pot lid 2. The guide plate and the guide plate fixing adjustment bolt cooperate, and the angle of the guide plate 33 can be changed by adjusting the fixing adjustment bolt. Specifically, by adjusting the tightening depth of the bolt, the tightness between the guide plate and the pot lid can be adjusted. When the connection becomes loose, the guide plate is moved to a predetermined position, and the adjustment bolt is tightened simultaneously to change the angle. The angle adjustment range of the guide plate is, for example, 0 to 360 degrees. By changing its angle, the flow direction of the soup steam can be guided, thereby reducing the long-term adhesion of steam to the fasteners on the inner side of the pot lid, which would increase the difficulty of cleaning.
[0027] like Figure 5As shown, the bottom of the outer pot 1 is provided with an annular heating tube 12. The annular heating tube 12 is connected to the bottom of the outer pot 1 through a heat-conducting plate. The heat-conducting plate has a generally honeycomb structure and is preferably made of a material with excellent thermal conductivity, such as aluminum alloy. The diameter of the honeycomb pores is 5 to 10 mm. The honeycomb surface of the heat-conducting plate is preferably shaped to match the surface of the annular heating tube, such as an arc-shaped groove. The honeycomb structure increases the contact area between the heat-conducting plate and the bottom of the outer pot 1, improving the heat conduction efficiency by about 20%, thereby making the bottom of the outer pot 1 more evenly heated. At the same time, due to the hollow honeycomb structure, the risk of local overheating is reduced, effectively protecting the outer pot and the heating tube, and improving the stability of the stewing effect. (Refer to...) Figure 2 The filter element 4 also has several flow guide holes on its outer wall. These flow guide holes are located above the filter holes 6, with a diameter smaller than the filter holes 6 (e.g., 0.5 to 1 mm), and number 10 to 20, evenly distributed on the upper middle outer wall of the filter element 4. The flow guide holes increase the circulation of broth inside and outside the filter element 4, promoting even heat distribution during stewing. They also allow a small amount of broth to pass through to balance internal and external pressure. However, due to the small hole diameter, oil has difficulty passing through, further enhancing the oil filtering effect.
[0028] like Figure 4 and Figure 4a As shown, the lid 2 has a detachable vent cover 15 on its top. The vent cover 15 is a roughly cylindrical lid, with a corresponding vent hole 16 on the lid 2. The design of the vent cover 15 facilitates pressure adjustment inside the pot, prevents spillage, and is easy to disassemble and clean. The maximum outer diameter of the vent cover 15 is slightly larger than the vent hole, ensuring a secure fit when assembled and easy removal. The vent cover 15 can be made of elastic, food-grade rubber.
[0029] A temperature sensor is installed on the inner side of the pot lid 2. The temperature sensor is a thermocouple or a thermistor, fixed in the center of the inner side of the pot lid 2, and connected to the control circuit inside the pot body 3 via a wire. The temperature sensor monitors the temperature inside the pot in real time and transmits the signal to the control circuit. The control circuit adjusts the heating power of the annular heating tube 12 according to the temperature. For example, when the temperature exceeds the set value, the power is reduced to achieve precise temperature control and prevent the soup from over-boiling or drying out.
[0030] The following is a specific embodiment of this utility model. For example... Figure 1As shown, when using the electric slow cooker of this invention for stewing, first place the ingredients and water into the outer pot 1, suspend the filter element 4 at the upper opening of the outer pot 1 via the hanging part 5, and install the grease collection tray 8. Cover the pot with the lid 2, adjust the angle of the guide plate, and start the heating function of the pot body 3. The annular heating tube 12 heats the outer pot 1 through the heat conduction plate 13. During the stewing process, the broth circulates inside and outside the filter element 4 through the filter holes 6 and the guide holes 14, and the grease is guided by the inclined surface 7 to accumulate at the upper part of the filter element 4. After stewing, when the outer pot 1 is poured out, the broth flows out through the filter holes 6, the grease and impurities are blocked inside the filter element 4, and some grease is deposited in the grease collection tray 8. The temperature sensor monitors the temperature in real time to ensure that the stewing process is safe and efficient.
[0031] This invention significantly improves the oil and residue filtering effect by setting an inclined surface 7, a flow guide hole 14, and a removable oil collection tray 8 on the filter element 4. Simultaneously, through the synergistic effect of the flow guide plate 10, the honeycomb heat-conducting plate 13, and the temperature sensor, it optimizes the flow of broth, heating uniformity, and temperature control, thus improving the overall stewing quality and ease of use. A possible alternative is that the flow guide hole 14 can be designed as an elliptical hole to further adjust the flow rate of the broth; these modifications do not deviate from the core technical solution of this invention.
[0032] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An electric cooker with filtering function, comprising an outer pot (1), a pot cover (2), a pot body (3) and a filtering member (4), characterized in that: The filter element (4) is disposed inside the pot body (3). The upper opening of the filter element (4) is provided with an outwardly extending hook part (5). The hook part (5) abuts against the upper opening of the outer pot (1). The pot lid (2) covers the upper opening of the outer pot (1) and is located above the filter element (4). The outer wall of the filter element (4) is provided with several filter holes (6). The bottom of the filter element (4) is provided with an oil collection tray (8). The bottom of the outer pot (1) is provided with an annular heating tube. The annular heating tube is connected to the bottom of the outer pot (1) through a heat-conducting plate.
2. The electric saucepan with filtering function according to claim 1, characterized in that: It also includes a snap-fit structure, which includes several snap-fit claws (17) and snap-fit grooves (18). The snap-fit claws (17) are located on the edge of the grease collection tray (8), and the snap-fit grooves (18) are located at the bottom of the filter element (4). The snap-fit claws (17) and snap-fit grooves (18) cooperate with each other to realize the disassembly and fixation of the grease collection tray (8).
3. The electric saucepan with filtering function according to claim 1, characterized in that: It also includes a baffle plate (33), which is connected to the inside of the pot lid (2) by adjusting the baffle plate.
4. The electric saucepan with filtering function according to claim 1, characterized in that: The heat-conducting plate of the annular heating tube (12) has a honeycomb structure.
5. The electric saucepan with filtering function according to claim 1, characterized in that: The filter element (4) has several flow guide holes (14) on its outer side wall, and the flow guide holes (14) are located above the filter holes (6).
6. The electric saucepan with filtering function according to claim 5, characterized in that: The diameter of the guide hole (14) is smaller than that of the filter hole (6), and there are several guide holes (14) evenly distributed on the outer wall of the filter element (4).
7. The electric saucepan with filtering function according to claim 1, characterized in that: It also includes a ventilated cover (15).
8. The electric saucepan with filtering function according to claim 1, characterized in that: The inner side of the pot lid (2) is equipped with a temperature sensor, which is connected to the control circuit through a wire to monitor the temperature inside the pot in real time and adjust the heating power.