Anti-overflow water jacket structure and electric cooker

Abstract

The utility model discloses an anti-overflow water jacket structure, which belongs to the technical field of electric cookers, and comprises an upper bottom cover, a heating disc and a middle jacket, the middle jacket is arranged on the upper bottom cover, the heating disc is arranged above the middle jacket, the middle jacket comprises an edge part, a water accumulation part and an anti-overflow part, and the water accumulation part is arranged above the middle jacket. The edge portion, the water accumulating portion and the overflow stopping portion are arranged from outside to inside with the middle sleeve as the axis, the edge portion is connected with the top wall of the upper bottom cover, the water accumulating portion can accumulate liquid entering from the outside, the liquid is prevented from damaging internal electrical elements, and the accumulated liquid can be conveniently cleaned after a pot container is taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of electric rice cookers, in particular to an anti-overflow sleeve structure and an electric rice cooker. Background Art

[0002] Today's electric rice cookers, electric baking trays and other small household appliances are all equipped with an intermediate sleeve to separate the container for food and the heating element. The intermediate sleeve is also used to fix the heating plate and connect the outer shell and the bottom cover. The heat generated by the heating element can be blocked by the intermediate sleeve to prevent it from being hidden in the internal electrical components. When external overflow water enters the pot body, it can avoid contact between water and circuit boards to prevent electrical short circuits. When the existing intermediate sleeve overflows, water will flow along the inner and lower parts of the intermediate sleeve, and the liquid will easily erode the electrical components in the middle part. After long-term use, the liquid will settle in the middle, which is difficult to clean and easy to breed bacteria.

[0003] The existing patent with announcement number CN207317955U discloses a bendable probe temperature sensor for electric rice cookers, including an intermediate terminal, a nut, a probe, a probe guide silicone, and a gasket. The lower part of the intermediate terminal is connected with the probe guide silicone, the nut is screwed on the upper part of the intermediate terminal, and the lower part of the probe guide silicone is sleeved with the probe. The probe guide silicone in the utility model is made of soft silicone, the lower probe can be bent, the probe can be inserted into the bottom of the pot, and the temperature in the electric rice cooker can be accurately measured, thereby improving the temperature accuracy and cooking more delicious food. The middle sleeve of the electric rice cooker will accumulate water in the middle after overflowing, resulting in corrosion of electrical components, and dripping water will accumulate into a ball and is difficult to clean. Utility Model Content

[0004] One of the purposes of the utility model is to provide an anti-overflow sleeve structure, which solves the problem that the overflow of the existing anti-overflow structure accumulates in the middle, causing corrosion of the electrical component body and accumulation of dirt.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] A water overflow prevention sleeve structure comprises an upper bottom cover, a heating plate and an intermediate sleeve, wherein the intermediate sleeve is arranged on the upper bottom cover, the heating plate is arranged above the intermediate sleeve, the intermediate sleeve comprises an edge portion, a water accumulation portion and an overflow prevention portion, the edge portion, the water accumulation portion and the overflow prevention portion are arranged from outside to inside with the intermediate sleeve as the axis, the edge portion is connected to the top wall of the upper bottom cover, the water accumulation portion can accumulate liquid entering from the outside to prevent the liquid from damaging the internal electrical components, and the accumulated liquid can be conveniently cleaned after the pot is taken out.

[0007] Furthermore, the intermediate sleeve also includes an overflow portion, which is arranged on one side of the overflow stop portion, and the bottom of the overflow portion is lower than the bottom surface of the water accumulation portion, and is used to collect excess liquid and impact liquid to prevent liquid from escaping from the water accumulation portion and damaging internal electrical components.

[0008] Preferably, the intermediate sleeve further comprises a protrusion, which is arranged on one side of the overflow portion, and the top wall of the protrusion is lower than the top of the overflow stop portion, for supporting the intermediate sleeve and protecting the electrical components in the middle.

[0009] Preferably, a through hole is provided on the edge portion, and a ring platform is provided on the inner wall of the upper bottom cover. The ring platform protrudes outward along the inner wall of the upper bottom cover, and the edge portion is connected to the lower end surface of the ring platform through the through hole for installing the intermediate sleeve.

[0010] More preferably, the annular platform is further provided with an arc surface, the curvature direction of the arc surface is toward the center of the intermediate sleeve, and the external liquid enters the intermediate sleeve along the arc surface.

[0011] More preferably, a gap is left between the heating plate and the intermediate sleeve, and the gap is greater than 5 mm to prevent the liquid from corroding the heating plate above the intermediate sleeve when flowing.

[0012] More preferably, the edge portion, the water accumulation portion and the connecting portion of the overflow prevention portion have a smooth transition, which makes cleaning easier.

[0013] More preferably, the intermediate sleeve is formed by sheet metal stamping, which is easy to form and not prone to corrosion due to dirt accumulation.

[0014] Preferably, the top of the overflow-stopping portion is higher than the upper end surface of the edge portion, which can prevent liquid impact and splashing.

[0015] The second purpose of the utility model is to provide an electric rice cooker, which solves the problem that the internal electrical components of the existing electric rice cooker are easily corroded by overflowing water.

[0016] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0017] An electric rice cooker comprises the anti-overflow jacket structure.

[0018] The beneficial effects of the utility model are:

[0019] (1) The anti-overflow sleeve structure is provided with an intermediate sleeve between the upper bottom cover and the heating plate. The intermediate sleeve includes an edge portion for installation. A water accumulation portion and an overflow prevention portion are sequentially provided along the outer wall of the intermediate sleeve toward the center. The water accumulation portion is recessed inward to form a pit, which can accumulate liquid entering along the inner wall of the outer shell. The top of the overflow portion is higher than the edge portion, which plays a role in intercepting the incoming liquid. External liquid accumulates in the water accumulation portion and can be cleaned after the pot is removed.

[0020] (2) The middle sleeve of the anti-overflow sleeve structure also includes an overflow portion and a protrusion. The overflow portion can buffer the overflowed liquid after too much liquid accumulates in the water accumulation portion. The overflow portion has a large storage volume, and the protrusion can prevent a large amount of liquid from invading the internal components of the rice cooker and damaging the rice cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of the electric sheet metal cooker provided by the utility model;

[0022] Figure 2 A partial cross-sectional view of the electric sheet metal cooker provided by the utility model;

[0023] Figure 3 A cross-sectional view of the anti-overflow sleeve structure provided by the utility model;

[0024] Figure 4 for Figure 3 Sectional view of upper part A.

[0025] Reference numerals:

[0026] 1. Pot core; 2. Upper bottom cover; 21. Ring platform; 22. Arc surface; 3. Middle sleeve; 31. Edge; 32. Water accumulation part; 33. Overflow stop part; 34. Overflow part; 35. Protrusion; 36. Through hole; 4. Lower bottom cover; 5. Thermal induction device; 6. Heating plate; 7. Heat dissipation grille. DETAILED DESCRIPTION

[0027] 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 only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] like Figure 1-Figure 4As shown, the present embodiment discloses an anti-overflow sleeve structure, comprising an upper bottom cover 2, a heating plate 6 and an intermediate sleeve 3, wherein the intermediate sleeve 3 is arranged on the upper bottom cover 2, and the heating plate 6 is arranged above the intermediate sleeve 3, and the intermediate sleeve 3 comprises an edge portion 31, a water accumulation portion 32 and an overflow prevention portion 33, wherein the edge portion 31, the water accumulation portion 32 and the overflow prevention portion 33 are arranged from the outside to the inside with the intermediate sleeve 3 as the axis, and the edge portion 31 is connected to the top wall of the upper bottom cover 2, and the intermediate sleeve 3 is tightly connected to the upper bottom cover 2, and the liquid flows along the inner wall of the outer shell through the upper bottom cover 2 into the water accumulation portion 32 in the intermediate sleeve 3, and the water accumulation portion 32 is close to the inner wall of the outer shell for easy cleaning after use, and the overflow prevention portion 33 serves to block the liquid from flowing toward the center of the intermediate sleeve 3, thereby improving the water storage capacity of the water accumulation portion 32.

[0030] Furthermore, the middle sleeve 3 also includes an overflow portion 34, which is arranged on one side of the overflow stop portion 33. The bottom of the overflow portion 34 is lower than the bottom surface of the water accumulation portion 32. It is used to accumulate water when too much water enters, so as to prevent excessive liquid and torrents from splashing into the rice cooker and causing damage to electrical components.

[0031] Preferably, the middle sleeve 3 also includes a protrusion 35, which is arranged on one side of the overflow portion 34. The top wall of the protrusion 35 is lower than the top of the overflow stop portion 33. The protrusion 35 contacts the top column of the lower bottom cover 4 to play a supporting role and prevent liquid from directly entering the rice cooker.

[0032] More preferably, a through hole 36 is provided on the edge portion 31, and a ring platform 21 is provided on the inner wall of the upper bottom cover 2. The ring platform 21 protrudes outward along the inner wall of the upper bottom cover 2. The edge portion 31 is connected to the lower end surface of the ring platform 21 through the through hole 36, and a bottom-to-bottom connection method is adopted to prevent liquid from accumulating at the connection. The intermediate sleeve 3 is fixed below the ring platform 21 by bolts passing through the through holes 36.

[0033] More preferably, the annular platform 21 is further provided with an arc surface 22 , the curvature direction of the arc surface 22 is toward the center of the intermediate sleeve 3 , and is used to guide the liquid to flow toward the intermediate sleeve 3 .

[0034] More preferably, a gap is left between the heating plate 6 and the intermediate sleeve 3 , and the gap is greater than 5 mm for liquid to pass through, thereby preventing the accumulated liquid from contacting the heating plate 6 and causing corrosion to the heating plate 6 .

[0035] More preferably, the connecting parts of the edge portion 31 , the water accumulation portion 32 and the overflow prevention portion 33 are smoothly transitioned, so as to facilitate cleaning of the middle sleeve 3 after taking out the inner pot 1 .

[0036] More preferably, the intermediate sleeve 3 is formed by sheet metal stamping, which has low manufacturing cost, corrosion resistance and long service life.

[0037] More preferably, the top of the overflow stop portion 33 is higher than the upper end surface of the edge portion 31 , thereby increasing the amount of water accumulated in the water accumulation portion 32 .

[0038] The working process of the anti-overflow sleeve structure is as follows:

[0039] After the inner pot 1 is loaded into the outer shell, the inner pot 1 contacts the heating plate 6. There is a gap between the inner pot 1 and the outer shell. External liquid enters the rice cooker through the gap. The liquid flows along the inner wall of the outer shell or the outer wall of the inner pot 1 to the middle sleeve 3. After the liquid flows into the water accumulation part 32, it is blocked by the overflow stop part 33. The liquid accumulates in the water accumulation part 32. After cooking is completed, the inner pot 1 can be taken out to clean the water accumulation part 32.

[0040] Embodiment 2

[0041] This embodiment also discloses an electric rice cooker, comprising an anti-overflow jacket structure, a lower bottom cover 4, a thermal sensing device 5, an outer shell and a pot 1. The upper bottom cover 2 and the lower bottom cover 4 are combined to form a space for accommodating electrical components. A heat dissipation grille 7 is installed at the bottom of the lower bottom cover 4 for filtering out, and the thermal sensing device 5 is installed at the center of the middle jacket 3.

[0042] Furthermore, a protrusion is provided at the intersection of the outer wall and the bottom wall of the pot 1. After the pot 1 is installed in the outer shell, the projection of the protrusion to the horizontal plane just falls into the water accumulation part 32, so that the liquid passing through the outer wall of the pot 1 can fall into the water accumulation part 32 through the protrusion, thereby preventing the liquid from corroding the heating plate 6.

[0043] According to the disclosure and teaching of the above description, the technical personnel in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes of the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. An anti-overflow cover structure, comprising an upper bottom cover (2), a heating plate (6) and an intermediate cover (3), wherein the intermediate cover (3) is arranged on the upper bottom cover (2), and the heating plate (6) is arranged above the intermediate cover (3), characterized in that: The middle sleeve (3) comprises an edge portion (31), a water accumulation portion (32) and an overflow prevention portion (33); the edge portion (31), the water accumulation portion (32) and the overflow prevention portion (33) are arranged from outside to inside with the middle sleeve (3) as the axis; the edge portion (31) is connected to the top wall of the upper bottom cover (2).

2. The anti-overflow jacket structure according to claim 1, characterized in that: The intermediate sleeve (3) further comprises an overflow portion (34), wherein the overflow portion (34) is arranged on one side of the overflow stop portion (33), and the bottom of the overflow portion (34) is lower than the bottom surface of the water accumulation portion (32).

3. The anti-overflow cover structure according to claim 2, characterized in that: The intermediate sleeve (3) further comprises a protruding portion (35), wherein the protruding portion (35) is arranged on one side of the overflow portion (34), and the top wall of the protruding portion (35) is lower than the top of the overflow-stopping portion (33).

4. The anti-overflow cover structure according to claim 1, characterized in that: The edge portion (31) is provided with a through hole (36), the inner wall of the upper bottom cover (2) is provided with a ring platform (21), the ring platform (21) protrudes outward along the inner wall of the upper bottom cover (2), and the edge portion (31) is connected to the lower end surface of the ring platform (21) through the through hole (36).

5. The anti-overflow cover structure according to claim 4, characterized in that: The annular platform (21) is also provided with an arcuate surface (22), and the bending direction of the arcuate surface (22) is toward the center of the intermediate sleeve (3).

6. The anti-overflow jacket structure according to claim 5, characterized in that: A gap is left between the heating plate (6) and the intermediate sleeve (3), and the gap is greater than 5 mm.

7. The anti-overflow jacket structure according to claim 1, characterized in that: The connecting portion between the edge portion (31), the water accumulation portion (32) and the overflow prevention portion (33) is smoothly transitioned.

8. The anti-overflow jacket structure according to claim 7, characterized in that: The intermediate sleeve (3) is formed by sheet metal stamping.

9. The anti-overflow cover structure according to claim 1, characterized in that: The top of the overflow stop portion (33) is higher than the upper end surface of the edge portion (31).

10. An electric rice cooker, characterized in that: The invention comprises the anti-overflow jacket structure as described in any one of claims 1 to 9.

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