Waterproof electric stewpot
By placing the heating element at the rear of the electric slow cooker, fixing the power cord at the bottom, and using non-metallic material on the cover to reduce heat conduction, the problems of poor noise reduction and easy damage to the power cord are solved, achieving better noise reduction and power cord tensile strength.
Patent Information
- Application Number
- CN202422608933.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-08-19
- Filing Date
- 2024-10-28
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The heating element and power cord of existing electric slow cookers are set up independently, which leads to poor noise reduction or easy damage to the power cord.
The heating element is placed on the rear side of the pot body, and the power cord fixing structure is located below the heating zone. The power cord is led out from the rear side of the pot body through the power cord fixing structure, and non-metallic material is set on the cover plate to reduce heat conduction. The power cord slot is formed by limiting ribs and fixing posts to improve tensile strength.
This technology reduces noise while increasing the tensile strength of the power cord, preventing damage and ensuring electrical safety and service life.
Smart Images

Figure CN223516094U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of kitchen appliances, and particularly relates to a water-separation electric stewing pot. BACKGROUND
[0002] At present, the water-separation stewing pot is mainly used for making some soup, porridge, complementary food and the like, and is used by users at night, so that the long-time stewing requirement can be met and the valuable working time can be fully utilized without occupying the working time, so as to reduce the waiting and obtain delicious and nutritious food in the morning. However, the night is the rest time of people, and the existing water-separation electric stewing pot will emit the gurgling noise in the working process, which affects the sleep of people and the user experience is not good.
[0003] A low-noise water-separation electric stewing cup disclosed in Chinese patent CN202060584U reduces the noise pollution of the water-separation stewing cup by arranging the heating element in the lower part of the water container and arranging the heating element on the edge and / or outside of the stewing cup in the normal projection of the support, so as to be suitable for the night use. However, the heating element in the above scheme is a ring-shaped heating element, such as a ring-shaped electric heating ring and a ring-shaped electric heating tube. The cost of the above heating element is high, which is not suitable for the market pricing of the current product, and the risk of dry burning is easy to occur. Because the electric heating ring and the electric heating tube are both ordinary resistance type heating elements, there is no temperature limitation in the working process. If there is no closed-loop control of the heating element by the temperature sensor (if a sensor is used to realize closed-loop control, the cost is further increased), the machine is easy to burn out. Therefore, it is not suitable for long-time cooking scenes.
[0004] Another patent CN207252097U discloses a power line fixing structure for household electrical appliances. The power line is fixed by forming a clamping groove and a support column on the base, so as to prevent the power line from being pulled and damaged by external force and ensure electrical safety. If the clamping groove and the support column disclosed in CN207252097U are used to improve the scheme disclosed in CN202060584U, a scheme with the heating element edge setting and the power line fixing structure can be obtained. However, because the heating disc and the clamping groove are independently arranged in the scheme disclosed in CN207252097U and do not interfere with each other, the simply combined scheme is also independently arranged. The scheme obtained by simple combination has the following disadvantages:
[0005] Generally, the rear side of the pot body is the position where the power line of the pot body is arranged. The rear side is far away from the user and is a better noise reduction position. If the power line is led out from the rear side, the heating element is arranged at other positions, which is not conducive to noise reduction. If the heating element is arranged at the rear side, the power line is arranged at other positions. At this time, the clamping groove may not be able to well bear the pulling force, and the leading-out position may bear a large pulling force and cause damage to the power line. SUMMARY
[0006] The application provides a water-sealed electric stew pot to solve the technical problems of the above-mentioned heating disc and the clamping groove being independently arranged, which results in the power cord being easily damaged or poor noise reduction effect.
[0007] In one aspect, the technical scheme adopted by one embodiment of the application is as follows:
[0008] A water-sealed electric stew pot comprises a pot body, a water containing cavity and a water containing vessel forming the water containing cavity are arranged in the pot body, the water containing vessel has a vessel bottom wall and a vessel side wall, an edge of the vessel bottom wall is provided with a heating area, and the heating area is arranged adjacent to a rear side of the pot body; a stew cup is arranged in the water containing cavity, the stew cup has a stew cup side wall and a stew cup bottom wall, and the heating area is arranged at an edge of the stew cup bottom wall; a heating element is arranged at least partially or entirely at a position of the heating area and is in contact with liquid in the water containing cavity through the heating area to heat the liquid in the water containing cavity; a power cord is arranged in the pot body and is clamped in a power cord fixing structure to fix the power cord on the water containing vessel and lead the power cord out from the rear side of the pot body, and the power cord fixing structure is arranged at a position below the heating area.
[0009] As a preferred embodiment of the above-mentioned embodiment, the pot body has an outer shell, the power cord is clamped in the power cord fixing structure and then led out from the outer shell, and the power cord fixing structure is arranged at a position adjacent to one side of the outer shell in the position below the heating area.
[0010] As a preferred embodiment of the above-mentioned embodiment, a cover plate is arranged at the position below the heating area to fix the heating element on the vessel bottom wall, and the power cord fixing structure is arranged on the cover plate.
[0011] As a preferred embodiment of the above-mentioned embodiment, the cover plate is made of non-metal material, the heating element has a heat conducting element, and the cover plate and the heat conducting element are arranged in non-contact mode.
[0012] As a preferred embodiment of the above-mentioned embodiment, the pot body has a base, the cover plate is provided with a first fixing position, the base is provided with a second fixing position, the first fixing position and the second fixing position are fixedly connected to realize fixed connection of the base and the water containing vessel, the cover plate has a third fixing position, the vessel bottom wall has a fourth fixing position, the third fixing position and the fourth fixing position are fixedly connected to realize fixed connection of the cover plate and the water containing vessel, and the third fixing position is arranged close to the first fixing position.
[0013] As a preferred embodiment of the above-mentioned embodiment, the power cord fixing structure comprises a fixing column and a limiting rib, and a power cord clamping groove is arranged between the fixing column and the limiting rib.
[0014] As a preferred embodiment of the embodiment, the cover plate has a limiting protruding rib extending along the thickness direction of the cover plate, and the water container has an extension extending along the thickness direction of the bottom wall of the container, and the limiting protruding rib is in limiting cooperation with the extension.
[0015] As a preferred embodiment of the embodiment, the limiting rib has a side opening towards the side of the outer shell of the pot body, and a first end portion and a second end portion located at the side opening, and the first end portion and the second end portion both extend towards the side of the outer shell; the heating element has a wiring end, and the power cord is introduced and led out through the side opening to be electrically connected with the wiring end; the first end portion is located at the power cord introduction side of the side opening, and the second end portion is located at the power cord leading-out side of the side opening, and the length of the second end portion extending towards the side of the outer shell is less than the length of the first end portion extending towards the side of the outer shell.
[0016] As a preferred embodiment of the embodiment, the distance between the second end portion and the wiring end is less than the distance between the first end portion and the wiring end.
[0017] As a preferred embodiment of the embodiment, the cover plate has a lug extending outwards from the side of the cover plate, and the third fixing position is arranged on the lug, and the first fixing position is arranged on or near the lug.
[0018] Thanks to the above technical solutions, the application has the following beneficial effects:
[0019] In the application, the power cord fixing structure is arranged below the heating area, and when the power cord and the heating area are both arranged at the rear side, the noise reduction effect can be improved, and the power cord fixing structure can improve the anti-pulling ability. Specifically, since the power cord is led out from the rear side, the power cord fixing structure arranged below the heating area can further improve the anti-pulling ability of the power cord, and avoid the problem of power cord damage caused by the pulling force at the leading-out position while the power cord fixing structure does not work.
[0020] In some preferred embodiments, the power cord is led out from one side of the mounting cavity to the outside of the outer shell. Since the temperature of the space outside the outer shell is relatively low, the power cord fixing structure is arranged adjacent to the side of the outer shell, which can reduce the influence of the high-temperature heating area on the power cord, facilitate heat dissipation of the power cord, and thus avoid melting and damage of the plastic insulation layer of the power cord.
[0021] In some preferred embodiments, the power cord fixing structure is arranged on the cover plate, which is convenient to form and simple in structure.
[0022] In some preferred embodiments, in order to control the temperature of the power cord, the cover plate is made of a non-metal material to reduce the heat transfer coefficient, and the heating element has a heat conduction element, and the cover plate is arranged in non-contact with the heat conduction element, thereby playing a heat insulation role.
[0023] In some preferred embodiments, when the first fixing position and the second fixing position are fixedly connected, the cover plate will be subjected to a downward pulling force. If the cover plate deforms too much due to the excessive downward pulling force, the cover plate may not be able to press the sealing member of the heating element tightly, thereby possibly causing the risk of water leakage in the heating area. In order to reduce the deformation amount caused by the pulling force between the first fixing position and the second fixing position, the third fixing position is arranged close to the first fixing position, so that the force arm between the first fixing position and the third fixing position is reduced to reduce the deformation of the cover plate.
[0024] In some preferred embodiments, the power cord clamping groove is formed by the fixing column and the limiting rib. After the power cord is clamped in the power cord clamping groove and then led out of the shell, the pulling performance of the power cord can be improved by using the fixing column to improve the service life of the power cord.
[0025] In some preferred embodiments, when the power cord clamped on the power cord fixing structure is pulled, the cover plate will bear a horizontal pulling force, and the inside of the cover plate will bear a tensile stress. If the tensile stress is too large, the cover plate may deform or displace. Since the limiting protruding rib is limited by the extension part, the ability of the cover plate to resist deformation or displacement can be improved, thereby avoiding the risk of water leakage in the heating area caused by the deformation or displacement of the cover plate when the power cord is pulled.
[0026] In some preferred embodiments, the side opening is arranged towards the side of the shell, thereby facilitating the power cord clamping groove to access the power cord introduced from the side of the shell. The first end and the second end of the limiting rib are boundaries of the side opening. The limiting rib and the fixing column form the power cord clamping groove. The power cord is introduced and led out from the side opening, so that the power cord is arranged to bend around the fixing column in the power cord clamping groove, thereby improving the tensile resistance of the power cord. After the power cord is led out from the side opening, it needs to be electrically connected to the wiring terminal of the heating element to provide power for the heating element. In order to facilitate wiring and reduce the bending degree of the power cord to avoid damaging the power cord, the length of the first end of the power cord introduction side extending towards the side of the shell is greater than the length of the second end of the power cord leading-out side extending towards the side of the shell. In this way, when the power cord is bent from the power cord leading-out side to the wiring terminal of the heating element, the bending degree is lower, thereby avoiding damaging the power cord.
[0027] In some preferred embodiments, the power cord leading-out side is arranged towards the side of the wiring terminal of the heating element, thereby reducing the wiring difficulty and length of the power cord, i.e., the distance between the second end and the wiring terminal is less than the distance between the first end and the wiring terminal.
[0028] In some preferred embodiments, the lugs can be arranged to facilitate the fixation of the cover plate. The lugs extend outwardly from the side of the cover plate, so that the third fixing position is away from the center of the heating area, thereby reducing the temperature of the third fixing position to prevent high-temperature deformation of the third fixing position. The first fixing position is arranged on or near the lugs, and the high-temperature deformation of the first fixing position can also be reduced. BRIEF DESCRIPTION OF DRAWINGS
[0029] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application. In the drawings:
[0030] Figure 1 A sectional view of the water-tight electric stew pot according to an embodiment of the application is shown in the figure;
[0031] Figure 2 A top view of the water-tight electric stew pot according to an embodiment of the application is shown in the figure;
[0032] Figure 3 A sectional view of the stew cup structure according to an embodiment of the application is shown in the figure;
[0033] Figure 4 A sectional view of a heating element according to an embodiment of the application is shown in the figure;
[0034] Figure 5 A sectional view of another heating element according to an embodiment of the application is shown in the figure;
[0035] Figure 6 A partial enlarged view according to an embodiment of the application is shown in the figure;
[0036] Figure 7 A perspective view according to an embodiment of the application is shown in the figure;
[0037] Figure 8 A sectional view of the water-tight electric stew pot according to an embodiment of the application is shown in the figure;
[0038] Figure 9 A perspective view of the water-tight electric stew pot according to an embodiment of the application is shown in the figure.
[0039] In some preferred embodiments, the lugs can be arranged to facilitate the fixation of the cover plate. The lugs extend outwardly from the side of the cover plate, so that the third fixing position is away from the center of the heating area, thereby reducing the temperature of the third fixing position to prevent high-temperature deformation of the third fixing position. The first fixing position is arranged on or near the lugs, and the high-temperature deformation of the first fixing position can also be reduced.
[0040] Pot body 100; stew cup 200; pot cover 300;
[0041] Housing 101; water container 102; base 103; water containing cavity 104; heating element 105; operation panel 106; mounting cavity 107; heating area 108; power cord 109;
[0042] Container side wall 1021; container bottom wall 1022; first region 1023; second region 1024; fourth region 1025; limiting boss 221;
[0043] Heat conducting member 1051; insulating layer 1052; PTC heating sheet 1053; fixed cavity 1054; heat transfer surface 1055; heating sink 1081; sealing ring 1082; cover plate 1083; heat insulation layer 1084; heat dissipation hole 1085; first fixing position 1086; second fixing position 1031; fixed column 1087; limiting rib 1088; power line clamping groove 1089; side opening 1090; first end 1091; second end 1092; wiring end 1093; third fixing position 1094; fourth fixing position 1095; lug 1096; limiting convex rib 1097; extension 1098;
[0044] Core heating area 551; peripheral heat transfer area 552;
[0045] Peripheral side edge area 110; peripheral side spacing space 120;
[0046] Saucepan bottom wall 201; saucepan side wall 202;
[0047] Support rib 2011; bottom wall inner side 2012; bottom wall outer side 2013; arc-shaped transition portion 2014. DETAILED DESCRIPTION
[0048] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.
[0049] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the application, but the application can also be implemented in other ways different from those described herein, therefore, the protection scope of the application is not limited by the specific embodiments disclosed below.
[0050] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.
[0051] In this application, unless specifically defined otherwise, the terms "mount", "connect", "connection", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be direct connection, can also be indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0052] In this application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.
[0053] The application provides a water-sealed electric stew pot, which is heated by water bath to heat food in a stew cup, so that the food in the stew cup is uniformly heated to cook soup, porridge, soup, beauty food, complementary food or mother and infant food with delicious taste, soft and tender food materials and healthy nutrition.
[0054] Reference Figure 1 The water-sealed electric stew pot has a pot body 100, a stew cup 200 placed in the pot body 100, and a pot cover 300 covering the pot body 100. The pot body 100 includes a water container 102, an outer shell 101, and a base 103. The side of the outer shell 101 is provided with an operation panel 106. The inside of the water container 102 forms a water cavity 104. As shown in Figure 8 The rear side of the pot body 100 is provided with a power cord 109. The stew cup 200 is located in the water cavity 104. When in use, a certain amount of water is added to the water cavity 104 so that the stew cup is immersed in the water. The water container 102 is provided with a heating element 105. The heat of the heating element 105 is transmitted to the water in the water cavity 104. The heat of the water in the water cavity 104 is transmitted to the food materials in the stew cup, so as to realize water-sealed stewing.
[0055] The stew cup is made of ceramic material and is high-temperature fired. The stewing container made of ceramic material has a small heat capacity. Therefore, a small amount of heat is required to raise 1 DEG C. Thus, a heating element with a small power can be used to heat it. In addition, because the heat conduction capacity is poor, the heat absorbed is easy to accumulate in the container body, realizing long-time high temperature, and providing a long-time high-temperature cooking environment for the food in the container. In summary, the water-separation electric stew pot has the advantages of low requirement for the form of the heating element and simple structure of the appliance. Therefore, its selling price is low, and it can cook some recipes that cannot be compared with high-pressure pots in taste. Therefore, it is deeply loved by users. In addition, another feature of the water-separation electric stew pot is that the stew cup is placed in the water container 102, and the heating element 105 heats the water in the water container 102, rather than directly heating the stew cup. The stew cup absorbs heat from the boiling water and then heats the food in the stew cup. Because the temperature of water has an upper limit, when the water in the water cavity 104 boils, the temperature remains stable. Therefore, the heating temperature of the stew cup is near the boiling point of water. As long as there is water, the temperature can be close to the boiling point, so that the stew cup is heated very uniformly. It is especially suitable for making porridge and other foods that need to be slowly stewed, and can fully lock in nutrients and prevent the pot from being burnt.
[0056] The feature of water-separation stewing brings a problem of too much noise. Because the stewing time is long, and porridge is mostly a breakfast recipe, the water-separation electric stew pot is mostly used to cook during the leisure time at night. The bubbles generated by the boiling water in the water cavity 104 during the cooking process can easily produce noise, affecting sleep and giving people a bad experience. The main reason for the noise is that the bubbles gather at the bottom of the stew cup and cannot float to the water surface in time, so as to gather into large bubbles and then surge to the liquid surface, pushing a large amount of water to move and produce noise.
[0057] To solve the technical problem, the application further adopts the following technical solutions:
[0058] As shown in FIGS. Figure 1 , 2 , the water container 102 has a container side wall 1021 and a container bottom wall 1022. The container bottom wall 1022 has a circumferential side edge area 110 close to the container side wall 1021. The heating element 105 is arranged in the circumferential side edge area 110. The stew cup side wall 202 of the stew cup 200 and the container side wall 1021 have a circumferential side spacing space 120. At least part of the circumferential side edge area 110 forms a bottom wall of the circumferential side spacing space 120. Through the above arrangement, the position of the heating element 105 in the water container 102 is substantially the projection area edge of the stew cup bottom wall 201 of the stew cup 200 on the container bottom wall 1022, that is, from the Figure 2From the perspective of the angle of view, the stew cup bottom wall 201 of the stew cup 200 should reduce the shielding of the heating element 105 as much as possible, so that after the heating element 105 heats and boils the water in the water containing cavity 104, the generated bubbles will be as far away from the stew cup bottom wall 201 of the stew cup 200 as possible, thereby avoiding the stew cup bottom wall 201 of the stew cup 200 hindering the rapid floating of the bubbles, so that the generated bubbles can quickly float to the water surface and be discharged in time through the air outlet of the pot cover 300, solving the problem that in the cooking process of the existing water-proof electric stew pot, due to the hindering of the stew cup bottom wall 201 to the bubbles, small bubbles are aggregated into large bubbles, causing the liquid surface to surge violently, and easy to emit larger noise.
[0059] The heating element 105 of the present application selects a PTC heating element (positive temperature coefficient thermosensitive material). The PTC heating element will increase the material resistance as the temperature rises, and has the characteristics of automatic constant temperature after thermal equilibrium. Therefore, it is more suitable for long-time cooking scenes, making the entire cooking process safer and more reliable. The PTC heating element is arranged in the circumferential edge area 110 on the container bottom wall 1022. In some existing electric stew pots, the heating element is arranged on the container side wall to heat the inside through the container side wall. Since the water in the water containing cavity of the water-proof electric stew pot is easy to evaporate completely during the cooking process, the liquid level will gradually decrease. If the heating element is arranged on the container side wall, it will be easy to dry out, causing damage to the appliance and easy to appear safety risk. The side wall heating is suitable for water containing containers made of metal material. The water containing container of the water-proof electric stew pot of the present embodiment is made of plastic material. In some alternative embodiments, the water containing container can be made of metal material.
[0060] In order to form a good heating effect, in the present embodiment, as shown in Figure 1 , 2As shown in Figure 6, the heating element 105 is disposed in the mounting cavity 107 between the water container 102 and the outer shell 101 or the base 103. For this purpose, a heating area 108 is provided at the edge of the bottom wall 1022 of the container. The heating area 108 is located in the peripheral edge area 110. The heating area 108 is far away from the center of the water cavity 104, so that after the stew pot 200 is placed in the water container 102, the heating area 108 can be located as close as possible to the edge of the bottom wall 201 of the stew pot, rather than in the center of the bottom wall 201 of the stew pot. The heating element 105 is disposed in the heating zone 108. The PTC heating element contacts the liquid in the water chamber 104 through the heating zone 108, thereby heating the liquid in the water container 102. The heating zone 108 is disposed on the bottom wall 1022 of the container, so that the actual effective heating area of the heating element 105 is limited to the area where the heating zone is located. Therefore, it is only necessary to design the position and shape of the heating zone to effectively reduce noise. As for the shape and structure of the heating element itself, it can be selected or designed according to the actual situation. Therefore, the limited space or area of the peripheral edge can be effectively utilized to achieve a better noise reduction effect. In this embodiment, the other areas outside the area where the heating zone is located are areas that cannot be effectively heated.
[0061] In a double boiler, the rear side is typically furthest from the user. Therefore, the sound generated by bubbles during heating is attenuated more as it travels towards the user, resulting in better noise reduction. For this reason, in some embodiments of this application, the heating zone is located only on the rear side adjacent to the pot body.
[0062] It should be understood that the front side of the pot body 100 is the side where the control panel 106 is located, that is... Figure 1 The left side, and the rear side is the opposite side from the control panel, which is... Figure 1 On the right side.
[0063] Meanwhile, the power cords of household appliances are generally located at the rear for easy plugging in. Therefore, in some embodiments of this application, such as... Figure 8 As shown, the power cord 109 extends from the rear side of the pot body 100, and a power cord fixing structure is provided inside the pot body 100. The power cord 109 is secured to the water container 102 by being clipped into the power cord fixing structure. In this embodiment, the power cord fixing structure is... Figure 7 The fixing post 1087, the limiting rib 1088, and the power cord slot 1089 are included. In some other embodiments, the power cord fixing structure can also be other structural forms.
[0064] like Figure 1 , 6As shown in Figure 9, the power cord fixing structure is located below the heating zone 108. When both the power cord 109 and the heating zone 108 are located at the rear, it not only improves the noise reduction effect but also ensures that the power cord fixing structure effectively enhances its tensile strength. Specifically, since the power cord exits from the rear, placing the power cord fixing structure below the heating zone further improves the power cord's tensile strength, preventing damage to the power cord caused by tensile forces at the exit point without the fixing structure functioning properly.
[0065] In this embodiment, the heating zone 108 is provided through the thickness direction of the container bottom wall 1022, so that the heating element 105 installed on the outer surface of the container bottom wall 1022 can be exposed, so that the heating element can directly heat the liquid in the water container 102. Installing the heating element on the outer surface of the container bottom wall 1022, that is, in the mounting cavity 107 between the water container 102 and the outer shell 101 or the base 103, can ensure electrical safety, ensure the user's electrical safety, and facilitate wiring for easy installation.
[0066] In this embodiment, as Figure 6 As shown, the bottom wall 1022 of the container forms a heating groove 1081 at the heating zone 108. The heating element constitutes the bottom wall of the heating groove, so that the bottom wall of the heating groove 1081 is lower than the upper surface of the bottom wall 1022 of the container, making it the lowest point of the water container 102. Therefore, during normal cooking, regardless of the amount of water, it can be ensured that the water in the water container 102 can flow into the heating groove 1081, so as to always ensure that there is water in the heating groove 1081 and reduce the risk of dry burning of the heating element.
[0067] like Figure 4 , 5 As shown, in this embodiment, the PTC heating element is a flat plate heating element, which includes a heat-conducting element 1051, an insulating layer 1052, and a PTC heating element 1053. The heat-conducting element 1051 has a fixed cavity 1054. The PTC heating element 1053 is wrapped around the insulating layer 1052 and installed in the fixed cavity 1054 to achieve insulation from the heat-conducting element 1051. The wire is exposed from one end of the fixed cavity 1054.
[0068] In one specific embodiment, the heat-conducting element 1051 is an aluminum profile manufactured by extrusion molding. Due to the limitations of the extrusion molding process, the fixing cavity 1054 cannot be formed into other curved shapes such as arcs. Therefore, the fixing cavity 1054 is an elongated cavity with openings at both ends. The elongated shape of the fixing cavity 1054 makes the distribution of the core heating area of the entire PTC heating element elongated, that is, the entire heating element may be elongated. In order to improve heat transfer efficiency, the entire core heating area is set within the heating zone. Therefore, the heating zone 108 can be set into an elongated shape.
[0069] Specifically, as shown in Figure 1 、 2 , the circumferential spacing space 120 has a width direction WD extending from the center of the container bottom wall 1022 to the container side wall 1021, and a circumferential direction RD extending along the circumferential direction of the container side wall 1021, the shape of the heating area 108 projected to the container bottom wall is a long strip shape, and the length direction L of the heating area 108 extends toward the circumferential direction RD of the circumferential spacing space 120, so as to make full use of the limited edge space to install the long strip-shaped PTC heating element, so as to ensure that the core heating area of the PTC heating element at the heating area 108 is located at the heating area 108, and higher heating efficiency is realized. It should be understood that not only the circular container side wall profile has the circumferential direction RD, but also other profile shapes have the circumferential direction, that is, the circumferential direction can be a straight line or an arc, specifically, the shape of the container side wall 1021 of the water container 102 in the overhead direction can be various, and it is not necessarily a strict circle or rectangle, such as Figure 2 , as shown in the structure, which is roughly square, which is relatively round, and overall square, but the circumferential direction has many arcs. It should also be understood that the length direction L of the heating area 108 extends toward the circumferential direction RD of the circumferential spacing space 120, which does not mean that the length direction L of the heating area 108 extends parallel to the circumferential direction RD of the circumferential spacing space 120, such as Figure 2 , the length direction L of the heating area 108 extends at an angle to the circumferential direction RD, that is, the length direction of the heating area extends outward of the first area or the second area, further, that is, the length direction of the heating element extends outward of the first area or the second area.
[0070] The width direction W of the heating area 108 extends along the width direction WD of the circumferential spacing space 120, and the length value of the heating area 108 is greater than the width value of the heating area 108. Thus, the heating area is avoided from being blocked by the bottom wall of the stew cup too much, which is beneficial to reduce noise. In some alternative embodiments of the present embodiment, the heating area can also be provided in other shapes, such as a fan shape, a circular shape, etc.
[0071] In some embodiments of the present application, as shown in Figure 1 、 7 -9, the pot body 100 has an outer shell 101, and the power cord 109 is clamped on the power cord fixing structure and then led out from the outer shell 101, and the power cord fixing structure is located at a position adjacent to one side of the outer shell 101 below the heating area 108. The power cord 109 is led out from one side of the installation cavity 107 to the outside of the outer shell 101, and since the temperature of the space outside the outer shell 101 is relatively low, when the power cord fixing structure is arranged at a position adjacent to one side of the outer shell 101, the influence of the high-temperature heating area 108 on the power cord 109 can be reduced, which is beneficial to heat dissipation of the power cord 109, so as to avoid melting and damage of the plastic insulation layer of the power cord.
[0072] Specifically, as shown in Figure 1 、 8 , the left edge of the heating area 108 is close to the center of the kettle body 100, and the right edge is close to the outer shell 101. At this time, the power cord fixing structure is arranged on the right side in the figure.
[0073] As shown in Figure 4 、 5 , the heat conduction piece 1051 of the PTC heating element includes a heat transfer surface 1055, which is arranged towards the heating area 108. The heat transfer surface 1055 at least includes a core heating area 551, which is arranged corresponding to the fixed cavity 1054. Thus, the heat generated by the heating fins in the fixed cavity 1054 can be quickly transmitted to the core heating area 551 through the heat conduction piece 1051. Some heat transfer surfaces 1055 of the heat conduction piece 1051 also have a peripheral heating area 552, which is arranged outside the core heating area 551. The heat of the core heating area 551 needs to be transmitted to the peripheral heating area 552 through the heat conduction piece, and then the peripheral heating area 552 can be heated. At least part or all of the heating element is arranged at the position of the heating area. In some embodiments, only the core heating area 551 is provided. In some embodiments, both the core heating area 551 and the peripheral heating area 552 are provided. The heating element arranged at the heating area can be any part of the core heating area and the peripheral heating area. In this embodiment, the core heating area is arranged at the heating area.
[0074] In some specific embodiments of the present application, the heat transfer surface 1055 arranged at the heating area 108 is the core heating area 551, so as to improve the heating efficiency, so as to quickly make the water in the water container 102 boil, and timely transmit the heat to the water in the water container 102 to maintain the boiling of the water in the container. In some alternative embodiments, the heat transfer surface 1055 arranged towards the heating area 108 includes both the core heating area 551 and the peripheral heating area 552, or only has the peripheral heating area 552.
[0075] In some specific embodiments of the present application, as shown in Figure 2As shown, the container bottom wall 1022 has a first area 1023 and a second area 1024, the projection area of the stew cup 200 towards the container bottom wall 1022 forms the first area 1023, the projection area of the stew cup bottom wall 201 towards the container bottom wall 1022 forms the second area 1024, the area range of the second area 1024 is smaller than that of the first area 1023, and the projection area of the heating zone 108 towards the container bottom wall partially overlaps with the first area 1023 or the second area 1024; the partial overlap means that the heating zone 108 or the heating element provided at the peripheral side edge area 110 is partially located in the first area 1023 or the second area 1024, and there is partial occlusion in the direction of orthographic projection, which is one of the schemes that can reduce noise in this case. Specifically, the overlapping part is approximately the projection area of the bottom wall outside of the stew cup bottom wall and the stew cup side wall, that is, the area defined by the edge line of the first area 1023 or the second area 1024 to the edge line of the heating zone 108; further, in order to achieve the noise reduction effect, the heating zone 108 can be selected not to overlap with the second area 1024, because the second area 1024 is approximately the range of the stew cup bottom wall 201, and has a greater impact on the noise reduction effect, so the second area 1024 can be selected not to overlap. The first area 1023 will probably overlap with the heating zone 108, because the stew cup side wall 202 generally has a certain draft angle due to the limitation of the manufacturing process, so the stew cup side wall 202 is not straight up and down in the vertical direction. Therefore, the maximum diameter of the stew cup 200 is often larger than the maximum diameter of the bottom wall, which makes the area range of the second area 1024 smaller than that of the first area 1023. The draft angle of the stew cup side wall 202 makes its diameter gradually increase from the side of the stew cup bottom wall 201 upwards, and is inclined outward. Since the draft angle is not too large, the inclination of the stew cup side wall 202 does not hinder the rapid upward floating of bubbles caused by the occlusion of the heating element or the heating zone. Therefore, the overlapping part of the heating zone 108 and the first area 1023 does not have too much impact on the noise reduction effect. In this embodiment, the heating zone 108 partially overlaps with the second area 1023 and the first area 1024.
[0076] In some specific embodiments of the present application, as shown in Figure 3 As shown, the stew cup bottom wall 201 is provided with a support rib 2011, and the stew cup bottom wall 201 is divided into a bottom wall inside 2012 located inside the support rib 2011 and a bottom wall outside 2013 located between the support rib 2011 and the stew cup side wall 202. The bottom wall outside 2013 includes an arc-shaped transition part 2014, and the projection of the arc-shaped transition part 2014 and the bottom wall outside 2013 towards the container bottom wall 1022 side forms a third area, and the third area is Figure 2The annular area between the fourth area 1025 and the second area 1024, the fourth area 1025 is the projection area of the support rib 2011 and the inner side 2012 of the bottom wall to one side of the container bottom wall 1022; the heating area 108 is partially overlapped with the third area, so that the heating element arranged on the heating area 108 will be located below the third area, that is, the heating area is located outside the projection of the support rib to the container bottom wall. A part of the heating area or the heating element is arranged in the third area below the area between the support rib 2011 and the side wall 202 of the stew cup, and the bubbles generated by the heating element will only collide with the outer side 2013 of the bottom wall or the arc transition part 2014 when they upwelling. Due to the blocking of the support rib 2011, the bubbles will not continue to move towards the inner side 2012 of the bottom wall, thereby avoiding the possibility of small bubbles gathering into large bubbles. The bubbles will float to the liquid surface after staying at the outer side 2013 of the bottom wall or the arc transition part 2014 for a while, thereby reducing the occurrence of noise.
[0077] Of course, in some specific embodiments of the present application, the heating area below the area between the side wall 202 of the stew cup and the support rib 2011 is very small, and most of the heating area is located outside the projection of the bottom wall 201 of the stew cup to the container bottom wall 1022. Therefore, the bubbles generated in the heating area will not collide with the stew cup, thereby reducing the noise.
[0078] In order to make the stew cup as little as possible to block the heating area every time it is taken out, a limiting structure is further included, and the stew cup is placed on the limiting structure. By the limiting structure, when the user places the stew cup into the water container 102, the heating area 108 can be located as much as possible outside the projection of the bottom wall 201 of the stew cup to the container bottom wall 1022.
[0079] In the embodiment, the limiting structure is arranged on the water container 102. In one specific embodiment, as shown in FIG. 10, the limiting structure is arranged on the side wall 1021 of the water container 102. Figure 1 、 2As shown, the limiting structure is a limiting boss 221 on the bottom wall 201 of the stew cup, the limiting boss 221 is protrudingly arranged in the water containing cavity 104, the inner side 2012 of the bottom wall of the stew cup 200 cooperates with the limiting boss 221, and the outer side 2013 of the bottom wall is located outside the limiting boss 221, so as to complete the left-right and front-back limiting of the stew cup 200 by the supporting ribs 2011, so that the stew cup 200 can be as little as possible to block the heating area. When the user takes and places the stew cup 200, due to the limiting action of the limiting boss 221, it can be ensured that the stew cup 200 can block the heating element or the heating area on the container bottom wall 1022 as little as possible each time, and it can be ensured that the circumferential side spacing space 120 between the stew cup side wall 202 and the container side wall 1021 is large enough, thereby reducing the noise. In the embodiment of the present application, the limiting structure is integrally formed with the water containing container 102, the integrally formed limiting structure can reduce the accessories, reduce the cleaning difficulty of the inside of the water containing container 102, has the advantages of simple structure, easy cleaning and low cost, and at the same time, after the bottom of the stew cup cooperates with the limiting boss 221, the gap between the bottom wall 201 of the stew cup and the water containing container 102 is further reduced, which can prevent bubbles from entering the bottom of the stew cup to cause impact noise, thereby being beneficial to silent cooking.
[0080] Of course, in another embodiment of the present application, the water containing container has a detachable supporting piece inside, the supporting piece is directly placed in the water containing container, the lower side of the supporting piece is in contact with the container bottom wall, and the upper side supports the stew cup. The limiting structure is arranged on the supporting piece, and the stew cup is limited in a certain range by the limiting structure on the supporting piece, so as to avoid the stew cup from blocking the heating area as much as possible. Of course, the projection of the supporting piece to the side of the container bottom wall is also located outside the heating area, so as to avoid the support from blocking the heating area. In some embodiments, the supporting piece can partially block, or be provided with a drainage surface, an air outlet window, etc., which can also reduce the noise.
[0081] In some embodiments of the present application, the mouth rim of the water containing container is provided with an anti-scald ring, and the stew cup is arranged on the anti-scald ring, so as to facilitate the user to take and place the stew cup and avoid scalding. The limiting structure is arranged on the anti-scald ring, so as to limit the position of the stew cup in the water containing container, so as to reduce the area of the stew cup blocking the heating area. In some embodiments, the bottom wall of the stew cup is spaced apart from the container bottom wall 1, so that the bottom wall of the stew cup can also be immersed in high-temperature water, so as to heat the stew cup in all directions and improve the cooking effect.
[0082] In some embodiments of the present application, the circumferential side spacing space 120 has different widths at different positions in the circumferential direction RD, that is, the width between the stew cup side wall 202 and the container side wall 1021 in the width direction WD of the circumferential side spacing space 120 is different.
[0083] As shown in FIG. 1, the stew cup 200 is arranged in the water containing container 102, and the stew cup 200 is arranged in the water containing container 102 in a manner that the stew cup side wall 202 is in contact with the container side wall 1021, and the bottom wall of the stew cup 200 is spaced apart from the container bottom wall 1022. Figure 1As shown, the housing 101 is provided with an operation panel 106. In the present application, the side provided with the operation panel 106 is defined as the front side, and the side opposite to the side provided with the operation panel 106 is defined as the back side. The heating area or heating element provided in the peripheral edge area 110 is arranged close to the back side, so that the noise source is as far away from the front side as possible, thereby improving the user experience.
[0084] The container side wall 1021 and the stew cup 200 have a first gap and a second gap. The first gap is the gap on the side provided with the heating area or heating element, such as the gap or width D1 of the peripheral spacing space 120 on the back side. The second gap is the gap on the side not provided with the heating area or heating element, such as the gap or width D2 of the peripheral spacing space 120 on the front side. Figure 1 As shown, the width of the first gap D1 is greater than the width of the second gap D2, and the second gap is smaller, so that the thickness of the water around the stew cup is reduced, thereby facilitating the water in the water holding cavity 104 to be quickly heated and maintained boiling, and further making the water temperature around the stew cup side wall 202 more uniform, and the stew cup is wrapped by high-temperature water, which can improve the cooking effect.
[0085] In some alternative embodiments of the present application, the stew cup can be multiple, and the PTC heating element is arranged close to the container side wall edge of the water holding container. The multiple stew cups are placed in the center of the water holding cavity, thereby realizing silent heating. At this time, the first area is formed by the projection area of the multiple stew cups towards the container bottom wall direction; and the second area is formed by the projection area of the stew cup bottom wall of the multiple stew cups towards the container bottom wall direction.
[0086] In some alternative embodiments of the present application, the water holding container can be elliptical, and the stew cup is circular. The heating area is arranged at both ends of the major axis of the elliptical shape. The water holding container can be rectangular, and the stew cup is circular. The heating area is arranged close to a side of the rectangular shape. Of course, the water holding container can also have other shapes.
[0087] In some embodiments of the present application, as shown in Figure 6 The heating element 105 and the water holding container 102 are sealingly arranged, and a sealing ring 1082 is arranged between the heating element 105 and the water holding container 102, thereby preventing water leakage of the heating area. The sealing ring 1082 is made of silica gel material, which can withstand high temperature without sealing failure.
[0088] In order to realize good sealing between the heating element and the heating area, the lower position of the heating area 108 is also provided with a cover plate 1083 to fix the heating element 105 on the bottom wall 1022 of the container, and the heating element 105 is fixed on the water container 102 through the cover plate 1083, the water container 102 is provided with a screw column, the cover plate 1083 is provided with a screw hole, so as to realize the screw fixing of the cover plate 1083, and a heat insulation layer 1084 is arranged between the heating element 105 and the cover plate 1083, the heat insulation layer 1084 is integrally formed with the sealing ring 1082, and both are silica gel parts. The arrangement of the heat insulation layer 1084 can reduce the risk of melting of the cover plate 1083 by the heating element 105. Further, as shown in Figure 7 , the cover plate 1083 is provided with a heat dissipation hole 1085, so as to facilitate heat dissipation of the heating element; the arrangement of the heat dissipation hole 1085 and the heat insulation layer 1084 can avoid the problem of burning and melting of the water container 102 and the cover plate 1083 due to excessive temperature, thereby avoiding the problem of sealing failure and even water leakage. In some alternative embodiments of the present application, the heat dissipation hole 1085 and the heat insulation layer 1084 can be selectively arranged.
[0089] As shown in Figure 7 , the power line fixing structure is arranged on the cover plate 1083, and the power line fixing structure includes a fixed column 1087 and a limiting rib 1088, and the fixed column 1087 and the limiting rib 1088 are provided with a power line clamping groove 1087; in order to facilitate the fixing of the base 103, as shown in Figure 6 , 7 , the first fixing position 1086 is also arranged on the cover plate 1083, and the second fixing position 1031 is arranged on the base 103, and the first fixing position 1086 and the second fixing position 1031 are fixedly connected, which can be screw fixed, so as to realize the fixed connection between the base 103 and the water container 102; the first fixing position 1086 is provided with a fixed column 1087 and a limiting rib 1088, and the fixed column 1087 and the limiting rib 1088 are provided with a power line clamping groove 1089, and the limiting rib 1088 is arranged around the fixed column 1087, so that the power line clamping groove 1089 is arranged around the fixed column 1087, and the power line clamping groove 1089 is opened on one side of the shell 101; after the power line is clamped in the power line clamping groove 1089, it is drawn out from the shell 101, so that the fixed column 1087 can be used to improve the pulling performance of the power line and prolong the service life of the power line.
[0090] Thus, the cover plate 1083 not only realizes the limiting fixing of the heating element, but also realizes the sealing of the heating element, and also realizes the fixed connection of the base 103, and can improve the pulling performance of the power cord; this greatly improves the utilization efficiency of the structure, so that the product structure is simple and the installation is efficient. It should be understood that the fixing column connecting the base 103 and the water container 102 also includes other fixing columns directly provided on the water container 102, such as defining the fixing column on the cover plate 1083 as a first fixing column, the fixing column on the water container 102 as a second fixing column, the second fixing column as 2, and the first fixing column as 1, which are distributed at an angle of 120 degrees from each other. Thus, by arranging the fixing columns in multiple, the base 103 and the water container 102 can be fixed firmly.
[0091] As shown in Figure 7 , 9 The limiting rib 108 has a side opening 1090 towards one side of the outer shell 101 of the pot body 100, and a first end 1091 and a second end 1092 located at the side opening 1090, both of which extend towards one side of the outer shell 101; the heating element 105 has a wiring end 1093, and the power cord 109 is introduced and led out through the side opening 1090 to be electrically connected with the wiring end 1093; the first end 1091 is located on the power cord introduction side of the side opening 1090, and the second end 1092 is located on the power cord leading-out side of the side opening 1090, and the length of the second end 1092 extending towards one side of the outer shell 101 is less than that of the first end 1092. The side opening 1090 is arranged towards one side of the outer shell 101, so that the power cord slot 1089 is conveniently accessed by the power cord 109 introduced from one side of the outer shell 101, and the first end 1091 and the second end 1092 of the limiting rib 1088 are the boundaries of the side opening 1090, and the power cord slot 1089 is formed between the limiting rib 1088 and the fixing column 1087. The power cord 109 is introduced and led out from the side opening 1090, so that the power cord 109 is arranged to bend around the fixing column 1087 in the power cord slot 1089, thereby improving the anti-pulling ability of the power cord. When the power cord is led out from the side opening, it needs to be electrically connected with the wiring end of the heating element to provide power for the heating element. In order to facilitate wiring and reduce the bending degree of the power cord to avoid damaging the power cord, the length of the first end extending towards one side of the outer shell on the power cord introduction side is greater than that of the second end extending towards one side of the outer shell on the power cord leading-out side. Thus, when the power cord is bent from the power cord leading-out side to the wiring end of the heating element, the bending degree is lower, thereby avoiding damaging the power cord. Preferably, the power cord leading-out side is arranged towards one side of the wiring end of the heating element, so that the wiring difficulty and length of the power cord can be reduced, that is, the distance between the second end and the wiring end is less than that between the first end and the wiring end.
[0092] In order to control the temperature of the power line, the cover plate 1083 is made of non-metal material, so as to reduce the heat transfer coefficient, the heating element 105 has a heat conducting element 1051, and the cover plate 1083 is arranged in non-contact with the heat conducting element 1051, so as to play a heat insulation role; preferably, the cover plate abuts against the sealing element, so that the cover plate and the heat conducting element are arranged in non-contact; in addition, the non-contact between the cover plate and the heat conducting element can also be realized through a heat insulation gap.
[0093] As shown in Figure 8 , the cover plate 1083 has a third fixing position 1094, and the container bottom wall 1021 has a fourth fixing position 1095, and the third fixing position 1094 and the fourth fixing position 1095 are fixedly connected to realize the fixed connection of the cover plate 1083 and the water container; preferably, the third fixing position 1094 of the cover plate 1083 and the fourth fixing position 1095 of the container bottom wall 1021 are fixedly connected through screws, and of course, other fixed connection modes such as buckling can also be used to realize the connection and fixation. Since the first fixing position 1086 and the second fixing position 1031 are fixedly connected, the cover plate 1083 will be subjected to a downward pulling force, and if the cover plate 1083 is deformed too much due to the excessive downward pulling force, the cover plate 1083 may not be able to play the role of pressing the sealing element of the heating element any more, thereby possibly causing the risk of water leakage in the heating area; in order to reduce the deformation caused by the pulling force between the first fixing position 1086 and the second fixing position 1031, the third fixing position 1094 is arranged close to the first fixing position, so that the force arm between the first fixing position and the third fixing position 1094 is reduced, so as to reduce the deformation of the cover plate.
[0094] As shown in Figure 9 , the cover plate 1083 has a lug 1096, the lug 1096 extends outwardly from the side of the cover plate 1083, the third fixing position 1094 is arranged on the lug 1096, and the first fixing position is arranged on or near the lug 1096. The lug 1096 can more conveniently fix the cover plate 1083, the lug 1096 extends outwardly from the side of the cover plate, so that the third fixing position 1094 is away from the center of the heating area, thereby reducing the temperature of the third fixing position 1094 to prevent high-temperature deformation of the third fixing position 1094. Further, the first fixing position arranged on or near the lug 1096 can also reduce the high-temperature deformation of the first fixing position.
[0095] As shown in Figure 6 , 8As shown, the cover plate 1083 has a limiting protrusion 1097 extending along the thickness direction of the cover plate 1083, and the water container has an extension 1098 extending along the thickness direction of the bottom wall of the water container, and the limiting protrusion 1097 is in limiting cooperation with the extension 1098. When the power cord fixed on the power cord fixing structure is pulled, the cover plate 1083 will bear a horizontal pulling force, so that the inside of the cover plate bears a tensile stress, and if the tensile stress is too large, the cover plate will have the risk of deformation or displacement; since the limiting protrusion 1097 is in limiting cooperation with the extension 1098, the ability of the cover plate to resist deformation or displacement can be improved, so as to avoid the risk of water leakage of the heating area due to deformation or displacement of the cover plate when the power cord is pulled. Specifically, the extension 1098 is integrally formed with the bottom wall of the water container, and in some embodiments, the extension 1098 is a screw column for fixing the fourth fixing position 1095 of the cover plate. Of course, in some embodiments, the extension can be other structures.
[0096] The places not described in the present application can be realized by using or referring to the existing technology.
[0097] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment mainly describes the difference from other embodiments.
[0098] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.
Claims
1. An electric waterless saucepan, characterized in that, The application relates to a water-proof electric stew pot, which comprises a pot body, a stew cup, a heating element and a power line. The pot body is internally provided with a water containing cavity and a water containing vessel forming the water containing cavity, the water containing vessel has a vessel bottom wall and a vessel side wall, the edge of the vessel bottom wall is provided with a heating area, and the heating area is arranged adjacent to the rear side of the pot body. The stew cup is arranged in the water containing cavity, the stew cup has a stew cup side wall and a stew cup bottom wall, and the heating area is arranged at the edge of the stew cup bottom wall. The heating element is arranged at least partially or wholly at the position of the heating area and is in contact with the liquid in the water containing cavity through the heating area to heat the liquid in the water containing cavity. The power line is fixed on the power line fixing structure in the pot body to fix the power line on the water containing vessel and lead the power line out from the rear side of the pot body, and the power line fixing structure is arranged at the position below the heating area.
2. An electric waterless saucepan as claimed in claim 1, characterized in that The pot body has an outer shell, the power line is led out from the outer shell after being clamped on the power line fixing structure, and the power line fixing structure is arranged at the position below the heating area and adjacent to one side of the outer shell.
3. The water-proof electric stew pot of claim 1, wherein the position below the heating area is provided with a cover plate to fix the heating element on the vessel bottom wall, and the power line fixing structure is arranged on the cover plate.
4. The water-proof electric stew pot of claim 3, wherein the cover plate is made of non-metal material, the heating element has a heat conducting element, and the cover plate is arranged in non-contact with the heat conducting element.
5. The water-proof electric stew pot of claim 3, wherein the pot body has a base, the cover plate is provided with a first fixing position, the base is provided with a second fixing position, the first fixing position and the second fixing position are fixedly connected to realize the fixed connection of the base and the water containing vessel, the cover plate has a third fixing position, the vessel bottom wall has a fourth fixing position, the third fixing position and the fourth fixing position are fixedly connected to realize the fixed connection of the cover plate and the water containing vessel, and the third fixing position is arranged close to the first fixing position.
6. The water-proof electric stew pot of claim 1, wherein the power line fixing structure comprises a fixing column and a limiting rib, and the fixing column and the limiting rib have a power line clamping groove therebetween.
7. The water-proof electric stew pot of claim 3, wherein the cover plate has a limiting convex rib extending along the thickness direction of the cover plate, the water containing vessel has an extension part extending along the thickness direction of the vessel bottom wall, and the limiting convex rib is in limiting cooperation with the extension part.
8. The water-proof electric stew pot of claim 6, wherein the limiting rib has a side part opening towards one side of the outer shell of the pot body, and a first end part and a second end part are arranged at the side part opening, the first end part and the second end part both extend towards the one side of the outer shell, the heating element has a wiring end, and the power line is led in and out through the side part opening to be electrically connected with the wiring end. The first end portion is located at a power cord introduction side of the side opening, and the second end portion is located at a power cord exit side of the side opening. The second end portion extends to the side of the housing by a length smaller than a length by which the first end portion extends to the side of the housing.
9. The waterless electric saucepan according to claim 8, wherein The second end portion is located at a power cord introduction side of the side opening, and the second end portion is located at a power cord exit side of the side opening. The second end portion extends to the side of the housing by a length smaller than a length by which the first end portion extends to the side of the housing.
10. The waterless electric saucepan according to claim 5, wherein The cover plate has a lug extending to the outside of the side of the cover plate. The third fixing position is provided on the lug, and the first fixing position is provided on or near the lug.
Citation Information
Patent Citations
Low-noise electric stewpot separated from water
CN202060584U
Power cord is fixed structure for domestic appliance
CN207252097U