Electric chafing dish

Abstract

The utility model provides an electric hot pot which comprises a base assembly and a pot body, the base assembly is provided with a heating plate, the pot bottom of the pot body is provided with a positioning protrusion, the heating plate is provided with a positioning groove matched with the positioning protrusion, when the pot body is matched with the base assembly, the heating plate is attached to the pot bottom, the positioning protrusion is inserted into the positioning groove, and the positioning protrusion is inserted into the positioning groove. And the height of the positioning bulge is smaller than the depth of the positioning groove. According to the electric hot pot, the positioning protrusions are inserted into the positioning grooves, the pot body and the base assembly are accurately positioned, the positioning protrusions and the positioning grooves are not prone to deformation, and therefore it is guaranteed that the pot bottom can be attached to the heating disc, the pot body is prevented from shaking relative to the base assembly, and the heat transfer effect between the pot body and the heating disc is improved; the occupied space of the positioning protrusions on the pot bottom and the occupied space of the positioning grooves on the heating disc can be small, production and machining of the pot body and the base assembly are facilitated, and the heating efficiency of the heating disc on the pot body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of small household appliances, in particular to an electric hot pot. Background Art

[0002] The electric hot pot generally comprises a base assembly and a pot body detachably mounted on the base assembly, and the pot body can be easily cleaned and used. When the pot body is removed from the base assembly and put back again, the pot body needs to be positioned on the base assembly, otherwise it is easy to cause poor heat transfer efficiency.

[0003] Usually, a circle of positioning convex ring is provided on the outer edge of the base assembly, and a circle of overlapping grooves adapted to the positioning ring are provided on the side wall of the pot and near the bottom wall. When the overlapping groove of the pot overlaps the positioning ring, it means that the pot is placed in place. However, the positioning effect of this method is easily affected by the size of the parts and the size of the deformation, resulting in inaccurate positioning, which causes the pot body to shake greatly when in contact with the electric heating plate, and poor heat transfer efficiency. Utility Model Content

[0004] In view of this, it is necessary to provide an electric hot pot with better positioning effect to solve the above problems so that the pot body and the base assembly can have better heat transfer effect while preventing the pot body from shifting or falling off relative to the base assembly.

[0005] The utility model first provides an electric hot pot, including a base assembly and a pot body, wherein the base assembly is provided with a heating plate, and is characterized in that a positioning protrusion is provided on the bottom of the pot body, and a positioning groove matching the positioning protrusion is provided on the heating plate. When the pot body is matched with the base assembly, the heating plate is attached to the bottom of the pot, the positioning protrusion is inserted into the positioning groove, and the height of the positioning protrusion is less than the depth of the positioning groove.

[0006] In the above-mentioned electric hot pot, the pot body and the base assembly are accurately positioned by inserting the positioning protrusion into the positioning groove. The positioning protrusion and the positioning groove are not easily deformed, thereby ensuring that the bottom of the pot can fit the heating plate and preventing the pot body from shaking relative to the base assembly. While improving the heat transfer effect between the pot body and the heating plate, it prevents the pot body from shifting or falling off relative to the base assembly.

[0007] In one embodiment, the height of the positioning protrusion is 1.5 mm to 20 mm; the depth of the positioning groove is 2 mm to 20 mm.

[0008] Such a configuration ensures that the positioning protrusion can be stably and reliably inserted into the positioning groove, while avoiding increasing the overall size of the pot body and the base assembly, or causing the positioning protrusion and the positioning groove to interfere with other structures inside the electric hot pot.

[0009] In one embodiment, the positioning protrusion is formed by tapering from the bottom of the pot in a direction away from the inner cavity of the pot body.

[0010] With such arrangement, the outer side surface of the positioning protrusion can cooperate with the positioning groove so that the positioning protrusion is gradually aligned with the positioning groove, which is convenient for the user to position and install the pot body and base assembly.

[0011] In one embodiment, the positioning protrusion includes a first side surface and a first bottom surface, two ends of the first side surface are smoothly connected to the pot bottom and the first bottom surface respectively, and the first side surface extends obliquely from the first bottom surface to the pot bottom.

[0012] With such arrangement, the first side surface facilitates the positioning of the positioning protrusion and the positioning groove, and the first bottom surface ensures that the pot body can be stably placed on a flat surface such as a desktop.

[0013] In one of the embodiments, the upper edge of the positioning groove is provided with a flared opening connected to the positioning groove, and the inner diameter of the flared opening decreases from the upper end of the flared opening toward one end of the positioning groove.

[0014] With such arrangement, the positioning protrusion can cooperate with the inner side surface of the flared opening so that the positioning protrusion is gradually aligned with the positioning groove, which makes it easier for the user to position and install the pot body and base assembly.

[0015] In one embodiment, the positioning protrusion is arranged at the center of the pot bottom.

[0016] Such an arrangement can prevent the positioning protrusion and positioning groove from affecting the normal arrangement of other components such as the heating tube.

[0017] In one embodiment, the positioning protrusion is provided in plurality, the plurality of positioning protrusions are arranged at intervals, and the heating plate is provided with a plurality of positioning grooves correspondingly, and each positioning protrusion corresponds one-to-one to the positioning groove.

[0018] With such arrangement, the cooperation of the plurality of positioning protrusions and positioning grooves can enhance the stability and reliability between the pot body and the base assembly.

[0019] In one of the embodiments, the positioning groove is a blind hole arranged on the heating plate.

[0020] With such arrangement, the blind hole can prevent impurities (such as oil stains or water stains) from entering into the base assembly.

[0021] In one of the embodiments, the positioning groove is a through hole provided on the heating plate.

[0022] Furthermore, the base assembly also includes a reflective cover arranged below the heating plate, the reflective cover is provided with a protrusion, and the protrusion is inserted into the through hole to form the positioning groove.

[0023] In this way, the positioning groove is a through hole, which is convenient for manufacturing. The projection of the reflector cover is inserted into the through hole to prevent impurities (such as oil stains or water stains) from entering the base assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of an electric hot pot in an embodiment of the utility model;

[0025] Figure 2 for Figure 1 A partial exploded cross-sectional view of an embodiment of a Chinese electric hot pot;

[0026] Figure 3 for Figure 1 A cross-sectional view of an embodiment of a Chinese electric hot pot;

[0027] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0028] Figure 5 for Figure 1 A partial exploded view of another embodiment of the Chinese electric hot pot;

[0029] Figure 6 for Figure 1 A cross-sectional view of another embodiment of the Chinese electric hot pot;

[0030] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0031] Figure numerals: 10, base assembly; 11, heating plate; 111, positioning groove; 112, flared opening; 113, through hole; 114, second side surface; 115, second bottom surface; 116, heating tube; 12, reflector; 121, bump; 20, pot body; 21, pot bottom; 22, positioning protrusion; 221, first side surface; 222, first bottom surface. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0035] An electric hot pot usually includes a base assembly and a pot body detachably mounted on the base assembly, and the pot body can be easily cleaned and used. When the pot body is removed from the base assembly and put back again, the pot body needs to be positioned on the base assembly, otherwise it is easy to cause poor heat transfer efficiency. Usually, a circle of positioning convex rings is provided on the outer edge of the base assembly, and a circle of overlapping grooves adapted to the positioning ring are provided on the side wall of the pot and close to the bottom wall. When the overlapping grooves of the pot overlap the positioning ring, it indicates that the pot is placed in place. However, the positioning effect of this method is easily affected by the size of the parts and the size of the deformation, resulting in inaccurate positioning, which causes the pot body to shake greatly when in contact with the electric heating plate and poor heat transfer efficiency.

[0036] In order to solve the above problems, Figures 1 to 7 As shown, the utility model provides an electric hot pot, which has a better positioning effect so as to achieve a better heat transfer effect between the pot body and the base assembly.

[0037] like Figures 1 to 4 As shown, specifically, the electric hot pot includes a base assembly 10 and a pot body 20, the base assembly 10 is provided with a heating plate 11, the bottom 21 of the pot body 20 is provided with a positioning protrusion 22, the heating plate 11 is provided with a positioning groove 111 matching the positioning protrusion 22, when the pot body 20 is matched with the base assembly 10, the heating plate 11 is attached to the bottom 21, the positioning protrusion 22 is inserted into the positioning groove 111, and the height H1 of the positioning protrusion 22 is less than the depth H2 of the positioning groove 111.

[0038] In the electric hot pot provided by the embodiment of the utility model, the pot body 20 and the base assembly 10 are accurately positioned by inserting the positioning protrusion 22 into the positioning groove 111, and the positioning protrusion 22 and the positioning groove 111 are not easily deformed even after long-term use, thereby ensuring that the pot bottom 21 can fit with the heating plate 11, avoiding the pot body 20 from shaking relative to the base assembly 10, and improving the heat transfer effect between the pot body 20 and the heating plate 11; in addition, through the cooperation between the positioning protrusion 22 and the positioning groove 111, it is possible to avoid the pot body 20 from moving relative to the base assembly 10, thereby ensuring the stability of the assembly between the heating plate 11 and the pot body 20.

[0039] Among them, the height H1 of the positioning protrusion 22 is less than the depth H2 of the positioning groove 111, the height H1 of the positioning protrusion 22 is the distance between the side of the positioning protrusion 22 facing away from the inner cavity of the pot body 20 and the outer bottom surface of the pot bottom 21, and the depth H2 of the positioning groove 111 is the distance between the side of the heating plate 11 facing the pot body 20 and the inner bottom surface of the positioning groove 111. In the assembled state, there is a certain gap between the side of the positioning protrusion 22 facing away from the inner cavity of the pot body 20 and the inner bottom surface of the positioning groove 111. In this way, the precision requirements for the processing dimensions of the pot body 20 and the base assembly 10 can be reduced, ensuring that when the positioning protrusion 22 is inserted into the positioning groove 111, the heating plate 11 can fit with the pot bottom 21.

[0040] In the illustrated embodiment, the positioning protrusion 22 is integrally formed with the pot bottom 21. For example, the positioning protrusion 22 is formed by stamping outward from the pot bottom 21, so that the positioning protrusion 22 protrudes outward from other positions of the pot bottom 21, which is convenient for production and processing. In this case, a groove is formed on the inner bottom surface of the pot bottom 21. Of course, in other embodiments, the positioning protrusion 22 can also be separately provided with the pot bottom 21, and the positioning protrusion 22 is fixed to the outer bottom surface of the pot bottom 21 by welding or the like. In this case, the inner bottom surface of the pot bottom 21 may not have a groove, as long as the positioning protrusion 22 protrudes from the pot bottom 21 and can be inserted into the positioning groove 111, the embodiment of the utility model is not specifically limited here.

[0041] like Figure 4 As shown, the height H1 of the positioning protrusion 22 is 1.5 mm to 20 mm; the depth H2 of the positioning groove 111 is 2 mm to 20 mm. This ensures that the positioning protrusion 22 can be stably and reliably inserted into the positioning groove 111, while also preventing the height H1 of the positioning protrusion 22 and the depth H2 of the positioning groove 111 from being too large, which would cause the overall size of the pot body 20 and the base assembly 10 to be too large, or cause the positioning protrusion 22 and the positioning groove 111 to interfere with other structures inside the electric hot pot; and it can also prevent the height H1 of the positioning protrusion 22 from being too high, which would affect the stability of the pot body 20 when placed on a flat surface such as a desktop.

[0042] The cross-sections of the positioning protrusion 22 and the positioning groove 111 can be set to be circular as shown in the figure, and the diameter of the circle is 2mm to 60mm. Of course, the cross-sections of the positioning protrusion 22 and the positioning groove 111 can also be set to regular or irregular shapes such as elliptical, triangular, quadrilateral, etc., as long as it is ensured that the pot body 20 will not shake relative to the base assembly 10 when the positioning protrusion 22 is inserted into the positioning groove 111, and the embodiment of the utility model is not specifically limited here.

[0043] like Figure 4 As shown, the positioning protrusion 22 is formed by shrinking from the pot bottom 21 in the direction away from the inner cavity of the pot body 20. That is, along the height direction of the positioning protrusion 22, the cross-sectional area of ​​the positioning protrusion 22 gradually decreases from the pot bottom 21 to the end away from the pot bottom 21. In this way, when the user places the pot body 20 on the base assembly 10, even if the positioning protrusion 22 and the positioning groove 111 are not completely aligned, the outer side surface of the positioning protrusion 22 and the inner side surface of the positioning groove 111 can be abutted, so that the pot body 20 moves relative to the base assembly 10, and the positioning protrusion 22 gradually aligns with the positioning groove 111, so that the user can easily position and install the pot body 20 and the base assembly 10.

[0044] like Figure 4 As shown, in one embodiment, the positioning protrusion 22 includes a first side surface 221 and a first bottom surface 222, and the two ends of the first side surface 221 are smoothly connected to the pot bottom 21 and the first bottom surface 222 respectively, and the first side surface 221 extends obliquely from the first bottom surface 222 to the pot bottom 21. The first side surface 221 is convenient for positioning the positioning protrusion 22 and the positioning groove 111, and the first bottom surface 222 ensures that the pot body 20 can be stably placed on a flat surface such as a desktop. Among them, the first side surface 221 can be a curved surface or a flat surface, and the curved surface and the flat surface are convenient for the production and processing of the positioning protrusion 22. When the first side surface 221 is a curved surface, the vertical cross section of the first side surface 221 is an arc; when the first side surface 221 is a flat surface, the vertical cross section of the first side surface 221 is a straight line. Alternatively, the first side surface 221 can also be an irregular curved surface.

[0045] In another embodiment, the positioning protrusion 22 can also be a complete arc surface or an irregular curved surface, etc., as long as the positioning protrusion 22 is reduced from the bottom of the pot 21 in the direction away from the inner cavity of the pot body 20 to facilitate the user to position the positioning protrusion 22 and the positioning groove 111. The embodiment of the utility model is not specifically limited here.

[0046] like Figure 4As shown, the upper edge of the positioning groove 111 is provided with a flared opening 112 connected to the positioning groove 111, and the inner diameter of the flared opening 112 is larger than the inner diameter of the positioning groove 111. The larger inner diameter of the flared opening 112 can facilitate the user to position the positioning protrusion 22 and the positioning groove 111, and at the same time, the inner diameter of the positioning groove 111 can match the outer diameter of the positioning protrusion 22, that is, the inner diameter of the positioning groove 111 is equal to or slightly larger than the outer diameter of the positioning protrusion 22, so as to prevent the positioning protrusion 22 from shaking in the positioning groove 111.

[0047] like Figure 4 As shown, the inner diameter of the flared opening 112 decreases from the upper end of the flared opening 112 toward one end of the positioning groove 111. That is, along the depth direction of the positioning groove 111, the cross-sectional area of ​​the flared opening 112 gradually increases from the positioning groove 111 to the end away from the positioning groove 111. In this way, when the user places the pot body 20 on the base assembly 10, even if the positioning protrusion 22 and the positioning groove 111 are not completely aligned, the outer side surface of the positioning protrusion 22 can be abutted against the inner side surface of the flared opening 112, so that the pot body 20 moves relative to the base assembly 10, and the positioning protrusion 22 gradually aligns with the positioning groove 111, thereby further facilitating the user to position and install the pot body 20 and the base assembly 10. Among them, the flared opening 112 can also be a curved surface, a flat surface or an irregular curved surface.

[0048] like Figures 2 to 3 As shown, the positioning protrusion 22 can be arranged at the center of the pot bottom 21. Since the heating tube 116 and other structures are usually not installed in the center of the heating plate 11, it can avoid that the positioning protrusion 22 and the positioning groove 111 affect the normal arrangement of other components such as the heating tube 116. Of course, without affecting other components such as the heating tube 116, the positioning protrusion 22 can also be arranged at a position close to the edge of the pot bottom 21.

[0049] In the illustrated embodiment, the positioning protrusion 22 is disposed at the center of the pot bottom 21, and there is one positioning protrusion 22 and one positioning groove 111. When the pot body 20 and the base assembly 10 are configured as circular structures, and the cross-sections of the positioning protrusion 22 and the positioning groove 111 are also configured as circular structures, the positioning protrusion 22 and the positioning groove 111 have no restrictions on the installation direction and angle of the pot body 20 and the base assembly 10, and the user can place the pot body 20 on the base assembly 10 in any direction.

[0050] In another embodiment, a plurality of positioning protrusions 22 are provided, and the plurality of positioning protrusions 22 are arranged at intervals; a plurality of positioning grooves 111 are correspondingly provided on the heating plate 11, and each positioning protrusion 22 corresponds to the positioning groove 111. The cooperation between the plurality of positioning protrusions 22 and the positioning grooves 111 can further improve the stability and reliability between the pot body 20 and the base assembly 10, and prevent the pot body 20 from rotating relative to the base assembly 10 around the center of the positioning protrusion 22.

[0051] like Figures 2 to 4 As shown, in one embodiment, the positioning groove 111 is a blind hole. That is, the heating plate 11 includes a second side surface 114 and a second bottom surface 115 forming the positioning groove 111. The blind hole positioning groove 111 can prevent impurities from entering the interior of the base assembly 10.

[0052] like Figures 5 to 7 As shown, in another embodiment, the positioning groove 111 is a through hole 113. The positioning groove 111 of the through hole 113 is easy to process and produce. Further, the base assembly 10 also includes a reflector 12, which is arranged below the heating plate 11, and a protrusion 121 is provided on the reflector 12, and the protrusion 121 is inserted into the through hole 113 to form the positioning groove 111. That is, the heating plate 11 only includes the second side surface 114, and the second side surface 114 and the top surface of the protrusion 121 form the positioning groove 111. The reflector 12 as a whole is used to reflect the heat radiated from the heating tube 116 toward one side of the reflector 12 toward the pot body 20, so as to reduce the loss of heat and improve the cooking effect. The protrusion 121 of the reflective cover 12 is inserted into the through hole 113 to prevent the heat of the bottom of the pot 21 from being lost through the through hole 113, resulting in a lower temperature in the center of the bottom of the pot 21, thereby further improving the cooking effect. In addition, the protrusion 121 on the reflective cover 12 can also block the positioning groove 111 to prevent impurities from entering the interior of the base assembly 10.

[0053] Furthermore, one of the magnet or magnet (not shown) can be provided in the positioning groove 111, and the other of the two can be provided on the positioning protrusion 22. When the user places the pot body 20 on the base assembly 10, the magnet and the magnet will attract each other after the positioning protrusion 22 approaches the positioning groove 111, so as to assist the user in positioning the positioning protrusion 22 and the positioning groove 111. Even if the user does not completely align the positioning protrusion 22 and the positioning groove 111, the pot body 20 can be moved relative to the base assembly 10 by the adsorption force between the magnet and the magnet, and the positioning protrusion 22 is aligned with the positioning groove 111, so that it is further convenient for the user to position and install the pot body 20 and the base assembly 10. In addition, the magnet and the magnet can also improve the stability and reliability of the pot body 20 on the base assembly 10, and prevent the pot body 20 from shaking relative to the base assembly 10, thereby ensuring the heat transfer effect between the pot body 20 and the heating plate 11.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An electric hot pot, comprising a base assembly (10) and a pot body (20), wherein a heating plate (11) is provided on the base assembly (10), characterized in that: The pot bottom (21) of the pot body (20) is provided with a positioning protrusion (22), and the heating plate (11) is provided with a positioning groove (111) that matches the positioning protrusion (22); when the pot body (20) is matched with the base assembly (10), the heating plate (11) is attached to the pot bottom (21), the positioning protrusion (22) is inserted into the positioning groove (111), and the height of the positioning protrusion (22) is less than the depth of the positioning groove (111).

2. The electric hot pot according to claim 1, characterized in that: The height of the positioning protrusion (22) is 1.5 mm to 20 mm; the depth of the positioning groove (111) is 2 mm to 20 mm.

3. The electric hot pot according to claim 1, characterized in that: The positioning protrusion (22) is formed by tapering from the pot bottom (21) in a direction away from the inner cavity of the pot body (20).

4. The electric hot pot according to claim 3, characterized in that: The positioning protrusion (22) comprises a first side surface (221) and a first bottom surface (222), the two ends of the first side surface (221) are smoothly connected to the pot bottom (21) and the first bottom surface (222) respectively, and the first side surface (221) extends obliquely from the first bottom surface (222) to the pot bottom (21).

5. The electric hot pot according to claim 1 or 3, characterized in that: The upper edge of the positioning groove (111) is provided with a flared opening (112) communicating with the positioning groove (111), and the inner diameter of the flared opening (112) decreases from the upper end of the flared opening (112) toward one end of the positioning groove (111).

6. The electric hot pot according to claim 1, characterized in that: The positioning protrusion (22) is arranged at the center of the pot bottom (21).

7. The electric hot pot according to claim 1, characterized in that: The positioning protrusions (22) are arranged in plurality, the plurality of positioning protrusions (22) are arranged at intervals, and the heating plate (11) is correspondingly provided with a plurality of positioning grooves (111), and each positioning protrusion (22) corresponds one-to-one to the positioning groove (111).

8. The electric hot pot according to claim 1, characterized in that: The positioning groove (111) is a blind hole arranged on the heating plate (11).

9. The electric hot pot according to claim 1, characterized in that: The positioning groove (111) is a through hole (113) provided on the heating plate (11).

10. The electric hot pot according to claim 9, characterized in that: The base assembly (10) further comprises a reflective cover (12) arranged below the heating plate (11), the reflective cover (12) being provided with a protrusion (121), the protrusion (121) being inserted into the through hole (113) to form the positioning groove (111).

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