Thermostatic bowl

By using a separate structure for the bowl and base, along with a vacuum chamber insulation design, the problem of cleaning and disinfecting electrically heated insulated bowls is solved, achieving a highly efficient heat preservation effect with controllable temperature and improving the user experience.

CN224357331UActive Publication Date: 2026-06-16佛山诺贝依科技有限责任公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
佛山诺贝依科技有限责任公司
Filing Date
2025-05-15
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing electric heating insulated bowls, due to their non-removable one-piece structure, cannot be washed in dishwashers or sterilized in sterilizers, and their heat preservation temperature is uncontrollable and the time is short.

Method used

It adopts a separate structure of bowl and base, with the bowl and base connected by a fixing ring. The base contains a heating element, and the bowl can be removed separately for cleaning or disinfection. The inner bowl, outer shell and bottom ring form a vacuum cavity for heat insulation, increasing the contact area between the heat conduction plate and the heating plate, and using a temperature probe to control the temperature.

🎯Benefits of technology

The electric heating insulated bowl is detachable, making it easy to clean and disinfect, improving the heat preservation effect and temperature control accuracy, and enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224357331U_ABST
    Figure CN224357331U_ABST
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Abstract

The utility model discloses a constant temperature bowl, including bowl body, base, fixed ring, the sidewall of bowl body is equipped with the bulge circle part that bulges outward, the top of base is opened and has the top opening, is equipped with heating assembly at the top opening, places the bowl body on heating assembly, and heating assembly is used for heating bowl body, when using, bowl body is placed on the base, makes bowl body and heating assembly contact, rotates the fixed ring simultaneously, makes fixed ring and base buckle connection, and arc face pressure surface simultaneously presses bulge circle part to the top of base, makes bowl body be pressed tightly on the base, and heating assembly starts working and carries out heating bowl body and keeps warm, after using, reverse rotation fixed ring, make fixed ring and base between remove connection, make bowl body can be taken down alone and carry out manual cleaning or put into the dish washing machine and carry out cleaning, or put into the sterilizing cabinet and carry out high temperature disinfection after cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of infant and toddler products, and in particular to a constant temperature bowl. Background Technology

[0002] When the weather is cold, food cools down easily in tableware, especially for infants and young children who have longer mealtimes. Cold food can affect their appetite, so people use thermostatic bowls to keep food warm. Water-filled thermostatic bowls have emerged on the market, which keep food warm by filling it with hot water. However, they have drawbacks such as uncontrollable temperature and short heat retention time. To improve the user experience, electric heating thermostatic bowls have been developed. Electric heating thermostatic bowls solve the above-mentioned defects. However, due to their non-removable one-piece structure, they cannot be washed in a dishwasher or sterilized in a sterilizer because of the circuit board, battery, and other components. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an embodiment of this utility model proposes a constant temperature bowl, including a bowl body, a base, and a fixing ring; the side wall of the bowl body is provided with an outwardly protruding convex ring portion; the top of the base has a top opening, and a heating component is installed at the top opening, on which the bowl body is placed, and the heating component is used to heat the bowl body; the fixing ring is fitted onto the bowl body, and the inner wall of the fixing ring is provided with an arc-shaped pressing surface, which is used to press the convex ring portion against the top of the base; the fixing ring and the base are connected by a snap-fit.

[0004] According to some embodiments of this utility model, the bowl body includes an inner bowl, an outer shell, and a bottom ring. The bottom of the inner bowl is in contact with the heating component. The inner bowl is located inside the outer shell. The top of the outer shell is welded to the top of the inner bowl. The bottom edge of the inner bowl is welded to the upper part of the bottom ring, forming a vacuum cavity between the inner bowl, the outer shell, and the bottom ring. An inner ring groove is formed between the edge of the heating component and the inner wall of the base. The bottom of the outer shell is welded to the bottom of the bottom ring and together they are inserted into the inner ring groove.

[0005] According to some embodiments of the present invention, the top of the outer shell is bent inward to form a bowl rim, the top surface of the bowl rim is an arc surface, and a connecting portion extends downward from the bowl rim, the connecting portion being welded to the inner bowl.

[0006] According to some embodiments of the present invention, a slot is formed between the edge of the heating plate and the inner wall of the base, the bowl bottom ring includes a first insert plate portion located at the bottom; the outer shell includes a second insert plate portion located at the bottom, the second insert plate portion and the first insert plate portion are welded to form an insert portion (103), and the insert portion is inserted into the inner ring groove.

[0007] According to some embodiments of the present invention, the heating assembly includes a heating plate, a heat-conducting plate, and a base frame. The base frame is fixed inside the base, the heating plate is fixed on the base frame, and the heat-conducting plate is fixed on the top surface of the heating plate.

[0008] According to some embodiments of this utility model, the base frame has a connection hole, the heating plate has an insertion hole, the insertion hole is located above the connection hole, the bottom surface of the heat-conducting plate is provided with a fixing post, the fixing post is inserted from the top of the insertion hole, and a screw is installed into the fixing post from the bottom of the connection hole.

[0009] According to some embodiments of the present invention, the heating plate is provided with an annular groove, the edge of the heat-conducting plate is bent downward to form a ring edge, the ring edge is inserted into the annular groove, and the annular groove surrounds the insertion hole.

[0010] According to some embodiments of the present invention, the bottom of the base frame is provided with a plug, the base is provided with a support column, the plug is inserted into the support column, a fixing screw is inserted into the support column, and the fixing screw is installed into the plug.

[0011] According to some embodiments of the present invention, the inner sidewall of the base is provided with supporting ribs, and the bottom edge of the base frame is provided with a supporting ring, which is placed on top of the supporting ribs.

[0012] According to some embodiments of this utility model, an L-shaped slot is provided on the outer side wall of the base, and a sliding buckle is provided on the inner side wall of the fixing ring. By rotating the fixing ring, the sliding buckle is engaged in the L-shaped slot.

[0013] The embodiments of this utility model have at least the following beneficial effects:

[0014] 1. This constant temperature bowl adopts a separate structure of bowl body and base, with the heating element installed inside the base. When using, place the bowl body on the base so that the bowl body contacts the heating element, and at the same time rotate the retaining ring to make the retaining ring and the base snap together, pressing the bowl body firmly on the base. The heating element starts to work and heats and keeps the bowl body warm. After use, rotate the retaining ring in the opposite direction to disengage the retaining ring from the base, so that the bowl body can be removed separately for manual washing or placed in a dishwasher for washing, or placed in a sterilizer for high-temperature sterilization after washing.

[0015] 2. The bowl body includes an inner bowl, an outer shell, and a bottom ring. The bottom of the inner bowl is in contact with the heating element. The inner bowl is located inside the outer shell. The top of the outer shell is welded to the top of the inner bowl. The bottom edge of the inner bowl is welded to the upper part of the bottom ring. The bottom of the outer shell is welded to the bottom of the bottom ring. This creates a vacuum cavity between the inner bowl, the outer shell, and the bottom ring. The vacuum cavity isolates the food in the inner bowl from heat transfer to the outside, further improving the heat preservation effect.

[0016] 3. To increase the contact area between the heat-conducting plate and the heating plate, an annular groove is provided on the heating plate, and the edge of the heat-conducting plate is bent downward to form a ring edge, which is inserted into the annular groove.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is an overall exploded view of an embodiment of the present utility model;

[0020] Figure 2 This is a top view of an embodiment of the present utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the AA section;

[0022] Figure 4 for Figure 3 Enlarged diagram of B in the diagram;

[0023] Figure 5 for Figure 3 Enlarged diagram of C in the middle;

[0024] Figure 6 This is a schematic diagram of the exploded state of the base and heating assembly according to an embodiment of the present invention. Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the exploded state of the base and heating assembly according to an embodiment of the present invention. Figure 2 ;

[0026] Figure 8 This is a top view of the base and heating assembly in an embodiment of the present invention.

[0027] Figure 9 for Figure 8 Schematic diagram of the DD section;

[0028] Figure 10 for Figure 8 Schematic diagram of the EE cross section. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0031] Reference Figures 1 to 3 A constant temperature bowl includes a bowl body 100, a base 200, a heating element 300, and a fixing ring 400. The side wall of the bowl body 100 is provided with an outwardly protruding convex ring portion 101. The top of the base 200 has a top opening 201, and the heating element 300 is installed at the top opening 201. The bowl body 100 is placed on the heating element 300, and the heating element 300 is used to heat the bowl body 100. The fixing ring 400 is fitted onto the bowl body 100. The inner wall of the fixing ring 400 is provided with an arc-shaped pressing surface 410, which is used to press the convex ring portion 101 against the top of the base 200. The fixing ring 400 and the base 200 are connected by a snap fastener.

[0032] When in use, place the bowl 100 on the base 200 so that the bowl 100 comes into contact with the heating element. At the same time, rotate the fixing ring 400 to make the fixing ring 400 snap into place with the base 200. Simultaneously, the arc-shaped pressing surface 410 presses the convex ring 101 against the top of the base 200, so that the bowl 100 is pressed firmly onto the base 200. The heating element 300 starts to work and heats and keeps the bowl 100 warm. After use, rotate the fixing ring 400 in the opposite direction to disengage the fixing ring 400 from the base 200, so that the bowl 100 can be removed for manual cleaning or placed in a dishwasher for cleaning, or placed in a sterilizer for high-temperature sterilization after cleaning.

[0033] Reference Figure 1 An L-shaped slot 230 is provided on the outer side wall of the base 200, and a sliding buckle 420 is provided on the inner side wall of the fixing ring 400. When the fixing ring 400 is rotated, the sliding buckle 420 is inserted into the L-shaped slot 230. When the bowl body 100 is disassembled, the fixing ring 400 is rotated in the opposite direction, so that the sliding buckle 420 slides out from the L-shaped slot 230, thereby releasing the connection between the fixing ring 400 and the base 200.

[0034] Reference Figure 3 , 4 The bowl body 100 includes an inner bowl 110, an outer shell 120, and a bowl bottom ring 130. The bottom of the inner bowl 110 is in contact with the heating component 300. The inner bowl 110 is located inside the outer shell 120. The top of the outer shell 120 is welded to the top of the inner bowl 110. The bottom edge of the inner bowl 110 is welded to the upper part of the bowl bottom ring 130. The bottom of the outer shell 120 is welded to the bottom of the bowl bottom ring 130.

[0035] Reference Figure 4 This creates a vacuum cavity 102 between the inner bowl 110, the outer shell 120, and the bottom ring 130. The vacuum cavity 102 isolates the food in the inner bowl 110 from heat transfer to the outside, further improving the heat preservation effect.

[0036] Reference Figure 5 When infants and young children use the bowl, they may bite the rim of the bowl 100. To avoid harming the infants' and young children's mouths, the top of the outer shell 120 is bent inward to form the rim 121. The top surface of the rim 121 is arc-shaped to protect the infants' and young children's mouths from being injured when they bite it.

[0037] Meanwhile, the rim 121 extends downward to form a connecting part 122, which is welded to the inner bowl 110, so that the rim of the inner bowl 110 is located on the inside. The rim of the inner bowl 110 can also be set in an arc shape to further prevent the infant's mouth from being injured when chewing.

[0038] Meanwhile, a lid is installed on the bowl body 100 to seal the inner cavity of the bowl body 100, so that the heat is trapped inside the bowl, which improves the heat preservation effect and prevents flies and other organisms from contaminating the food.

[0039] Reference Figure 4 Since the constant temperature bowl is usually used by infants and young children, it is necessary to ensure that the bowl body 100 will not detach from the base 200. In addition to using the fixing ring 400 to snap the connection with the base 200, in this embodiment, an inner ring groove 500 is also provided between the edge of the heating component 300 and the inner wall of the base 200. Specifically, it is between the heating plate 310 and the inner wall of the base 200.

[0040] The bottom of the outer shell 120 is welded to the bottom of the bowl bottom ring 130 to form an integral part inserted into the inner ring groove 500, further strengthening the stability of the bowl 100 placed on the base 200.

[0041] Reference Figure 4Specifically, the bowl bottom ring 130 includes a first insert plate portion 131 located at the bottom; the outer shell 120 includes a second insert plate portion 123 located at the bottom. The second insert plate portion 123 is welded to the first insert plate portion 131 to form an insert portion 103. The insert portion 103 is inserted into the inner ring groove 500 to ensure the stability of the bowl body 100 when it is placed on the heating component 300.

[0042] At the same time, the position of the bowl 100 is accurately positioned to facilitate the subsequent snap-fit ​​connection between the fixing ring 400 and the base 200.

[0043] Reference Figure 6 , 7 The heating assembly 300 includes a heating plate 310, a heat-conducting plate 320, and a base frame 330. The base frame 330 is fixed inside the base 200, the heating plate 310 is fixed on the base frame 330, the heating plate 310 is installed at the top opening 201, and the heat-conducting plate 320 is fixed on the top surface of the heating plate 310.

[0044] The heat-conducting plate 320 contacts the inner bowl 110. The heat generated by the heating plate 310 during operation is transferred to the inner bowl 110 through the heat-conducting plate 320 to heat and keep the food in the inner bowl 110 warm.

[0045] Meanwhile, by setting a temperature sensing probe, the temperature sensing probe passes through the base frame 330, heating plate 310 and heat conduction plate 320 in sequence, so that the head of the temperature sensing probe protrudes from the heat conduction plate 320 and contacts the bottom of the inner bowl 110 to obtain the temperature information of the inner bowl 110 and feed it back to the control board. The control board controls the working power of the heating plate 310 to ensure that the temperature of the inner bowl 110 is kept within a certain range.

[0046] Meanwhile, a rechargeable battery is installed inside the base 200, which supplies power to the heating plate 310.

[0047] Reference Figure 6 , 7 To securely connect the heating plate 310, the heat-conducting plate 320, and the base frame 330, a connection hole 331 is provided on the base frame 330, and an insertion hole 311 is provided on the heating plate 310. The insertion hole 311 is located above the connection hole 331. A fixing post 321 is provided on the bottom surface of the heat-conducting plate 320. The fixing post 321 is inserted from the top of the insertion hole 311, and the screw is inserted from the bottom of the connection hole 331 and screwed into the fixing post 321.

[0048] Reference Figure 6 , 7 To increase the contact area between the heat-conducting plate 320 and the heating plate 310, an annular groove 312 is provided on the heating plate 310. The edge of the heat-conducting plate 320 is bent downward to form a ring edge 322, which is inserted into the annular groove 312. At the same time, the annular groove 312 surrounds the insertion hole 311.

[0049] Meanwhile, the structure of inserting the edge 322 into the annular groove 312 prevents the edge of the heat-conducting plate 320 from lifting up after long-term use, thus avoiding the formation of gaps between the heat-conducting plate 320 and the heating plate 310, which would affect the thermal conductivity. At the same time, the edge of the heat-conducting plate 320 may be scratched, and dirt may easily accumulate in the gaps, making cleaning inconvenient and leading to hygiene problems due to incomplete cleaning.

[0050] Reference Figures 6 to 9 To fix the base frame 330, a pin 332 is provided at the bottom of the base frame 330, and a support column 210 is provided inside the base 200. The pin 332 is inserted into the support column 210, and the support column 210 provides support for the base frame 330. The fixing screw is inserted from the bottom of the support column 210 and screwed upward into the pin 332.

[0051] Reference Figures 6 to 8 10. Since the base 330 must ultimately bear the weight of the bowl 100 and the food inside the bowl 100, it is necessary to further ensure the stability and load-bearing capacity of the base 200. Therefore, support ribs 220 are arranged on the inner side wall of the base 200, and support rings 333 are provided at the bottom edge of the base 330. The support rings 333 are placed on top of the support ribs 220 to further provide good support for the base 330.

[0052] At the same time, a receiving space is formed between the bottom of the base frame 330 and the inner bottom surface of the base 200. The control board, charging control board, battery, etc. can be installed in this receiving space. Meanwhile, heat dissipation grilles are opened on the bottom or side wall of the base to dissipate heat from the receiving space and prevent the heat generated by the heating plate 310 from affecting the battery, etc.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A constant temperature bowl, characterized in that, include The bowl body (100) has an outwardly protruding convex ring (101) on its side wall. A base (200) is provided with a heating component (300) on its top. The bowl (100) is placed on the heating component (300) and the heating component (300) is used to heat the bowl (100). A fixing ring (400) is fitted onto the bowl body (100). The inner wall of the fixing ring (400) is provided with an arc-shaped pressing surface (410). The arc-shaped pressing surface (410) is used to press the convex ring (101) against the top of the base (200). The fixing ring (400) and the base (200) are connected by a snap fastener.

2. The constant temperature bowl according to claim 1, characterized in that, The bowl body (100) includes an inner bowl (110), an outer shell (120), and a bowl bottom ring (130). The bottom of the inner bowl (110) is in contact with the heating component (300). The inner bowl (110) is located inside the outer shell (120). The top of the outer shell (120) is welded to the top of the inner bowl (110). The bottom edge of the inner bowl (110) is welded to the upper part of the bowl bottom ring (130), so that a vacuum cavity (102) is formed between the inner bowl (110), the outer shell (120), and the bowl bottom ring (130). The outer side wall of the outer shell (120) is provided with the convex ring portion (101). An inner groove (500) is formed between the edge of the heating component (300) and the inner wall of the base (200). The bottom of the outer shell (120) is welded to the bottom of the bowl bottom ring (130) and inserted into the inner groove (500).

3. The constant temperature bowl according to claim 2, characterized in that, The top of the outer shell (120) is bent inward to form a bowl edge (121), the top surface of the bowl edge (121) is an arc surface, and the bowl edge (121) extends downward to form a connecting part (122), which is welded to the inner bowl (110).

4. The constant temperature bowl according to claim 2, characterized in that, The bowl bottom ring (130) includes a first insert plate portion (131) located at the bottom; the outer shell (120) includes a second insert plate portion (123) located at the bottom, the second insert plate portion (123) and the first insert plate portion (131) are welded to form an insert portion (103), the insert portion (103) is inserted into the inner ring groove (500).

5. The constant temperature bowl according to claim 1, characterized in that, The heating assembly (300) includes a heating plate (310), a heat-conducting plate (320), and a base frame (330). The base frame (330) is fixed inside the base (200), the heating plate (310) is fixed on the base frame (330), and the heat-conducting plate (320) is fixed on the top surface of the heating plate (310).

6. The constant temperature bowl according to claim 5, characterized in that, The base frame (330) has a connection hole (331), and the heating plate (310) has a socket hole (311). The socket hole (311) is located above the connection hole (331). The bottom surface of the heat-conducting plate (320) is provided with a fixing post (321). The fixing post (321) is inserted from the top of the socket hole (311), and a screw is installed into the fixing post (321) from the bottom of the connection hole (331).

7. The constant temperature bowl according to claim 6, characterized in that, The heating plate (310) is provided with an annular groove (312), and the edge of the heat-conducting plate (320) is bent downward to form a ring edge (322). The ring edge (322) is inserted into the annular groove (312), and the annular groove (312) surrounds the insertion hole (311).

8. The constant temperature bowl according to claim 5, characterized in that, The bottom of the base frame (330) is provided with a plug (332), and the base (200) is provided with a support column (210). The plug (332) is inserted into the support column (210), and a fixing screw is inserted into the support column (210). The fixing screw is installed in the plug (332).

9. The constant temperature bowl according to claim 6, characterized in that, Supporting ribs (220) are arranged on the inner sidewall of the base (200), and a support ring (333) is provided at the bottom edge of the base frame (330), with the support ring (333) placed on top of the supporting ribs (220).

10. The constant temperature bowl according to claim 1, characterized in that, The base (200) has an L-shaped slot (230) on its outer side wall and a sliding buckle (420) on its inner side wall. When the fixed ring (400) is rotated, the sliding buckle (420) is engaged in the L-shaped slot (230).