Bowl with automatic heat preservation and heating functions

Abstract

The bowl with the automatic heat preservation and heating functions comprises a bowl body, the bowl body comprises an inner shell and an outer shell which can define a sealed interlayer space, and the top end of the outer shell and the top end of the inner shell are fixed in a sealed mode; the interlayer space is internally provided with a heating piece and an elastic piece which enables the heating piece to tightly abut against the outer wall of the inner shell. According to the bowl with the automatic heat preservation and heating functions, by introducing the heating piece and the like, the automatic heating and heat preservation functions of the bowl can be achieved according to needs; the heat preservation box is particularly suitable for containing food needing long-time heat preservation or children and the like, and is higher in practicability.

Description

Technical Field

[0001] The invention belongs to the technical field of tableware design, and in particular relates to a bowl with automatic heat preservation and heating functions. Background Art

[0002] Traditional bowls have no heating function, which makes the food in the bowl easy to get cold during use, which is not good for health. Especially for young children, because they eat slowly, it is more likely that the food will get cold, and the gastrointestinal functions of young children are not fully developed, so cold food is more harmful to their growth. Generally, cold food needs to be heated several times, especially in low-temperature seasons.

[0003] In order to improve the heat preservation function, sandwich bowls have begun to appear in recent years. They adopt a double-layer structure with an air layer or vacuum layer in the middle of the double layers. The setting of the middle air layer or vacuum layer greatly reduces the heat conductivity of the bowl, thereby slowing down the cooling process of the food. However, after using the existing sandwich bowls for several times, leakage problems are prone to occur. When water enters the sandwich, it not only causes hygiene problems, but also makes it inconvenient to clean the inside of the sandwich. At the same time, the heat preservation performance of the sandwich bowls as a whole needs to be further improved.

[0004] Bowls and other utensils are needed every day, but they cannot keep warm, which directly affects people's quality of life, especially in cold winter. Designing a bowl with automatic heat preservation and heating functions has a good application market. Summary of the invention

[0005] The present invention provides a bowl with automatic heat preservation and heating functions, which can well maintain the temperature of food in the bowl and greatly improve the comfort and health of people during the meal.

[0006] A bowl with automatic heat preservation and heating functions comprises a bowl body, wherein the bowl body comprises an inner shell and an outer shell capable of enclosing a sealed interlayer space, wherein the outer shell and the top of the inner shell are sealed and fixed; a heating plate and an elastic member which presses the heating plate tightly against the outer wall of the inner shell are arranged in the interlayer space.

[0007] The sandwich structure itself has a heat preservation function. The invention introduces a heating plate to further realize the heating function. The sandwich space is also provided with a power supply, wires, etc. required by the heating plate. The elastic member is used to ensure that the heating plate is always tightly connected to the bottom of the inner shell, ensuring a stable heating effect.

[0008] The inner shell is generally made of stainless steel, and the outer shell can be made of plastic, etc. At the same time, a container cover can be added as needed to further increase the insulation effect.

[0009] Preferably, a thermal insulation pad is provided in the interlayer space, and the heating plate is fixed on the top surface of the thermal insulation pad; and the elastic member is arranged below the thermal insulation pad.

[0010] Preferably, the elastic member is one or more spring members arranged below the thermal insulation pad, the top end of the spring member abuts against the bottom surface of the thermal insulation pad, and the bottom end abuts against the inner wall of the shell.

[0011] Preferably, the heat insulation pad is arranged directly below the inner shell; the elastic member is a plurality of spring members evenly arranged circumferentially below the heat insulation pad. This structure ensures the heating effect while also ensuring the stability of the elastic member support. Generally, 1 to 8 spring members are arranged.

[0012] Preferably, a positioning column is provided in the sealed interlayer space; the elastic member is sleeved on the positioning column; the bottom end of the positioning column is fixed to the inner wall of the shell, and the top end passes through the thermal insulation pad, and an anti-slip member is also provided at the end. The setting of the positioning column facilitates the positioning of the elastic member. At the same time, it plays a certain guiding role for the thermal insulation pad, further improving the positioning effect of the heating plate.

[0013] Preferably, a temperature sensor for detecting the temperature of the inner shell and a control panel are provided in the enclosed space; a display window and an input area are provided on the outer shell; a temperature display component is provided at a position corresponding to the display window in the enclosed space; the controller receives the temperature signal of the temperature sensor and the input temperature value of the input area, and controls the operation of the heating plate according to the two temperatures. Through this technical solution, the temperature in the bowl can be observed in real time through the display window. The temperature display component generally includes a light source, a shading plate, and a light-transmitting film, and the light source is controlled by the controller.

[0014] Preferably, the top end of the inner shell is provided with a folded edge for sealing and fixing with the outer shell, and a sealing component is provided between the folded edge and the outer shell.

[0015] Preferably, the top of the outer shell is provided with a plurality of arc-shaped snap-fitting convex edges, with a gap between two adjacent snap-fitting convex edges; the outer wall of the snap-fitting convex edge is provided with a locking groove that is radially recessed inward near the root; the bottom end of the folded edge is provided with a snap-fitting edge that cooperates with the locking groove. A plurality of snap-fitting convex edges are evenly arranged along the top of the outer shell. In a free state, the outer diameter of the snap-fitting convex edge is slightly larger than the inner diameter of the folded edge of the inner shell. During actual installation, the folded edge of the inner shell is aligned with the top of the outer shell and pressed downward. Under the pressure of the outer shell, the snap-fitting convex edge is slightly tilted inward. When the snap-fitting edge of the folded edge enters the locking groove of the snap-fitting convex edge, the snap-fitting convex edge returns to its position, completing the mutual fixation of the inner shell and the outer shell.

[0016] Preferably, the top of the outer shell is provided with an annular sealing convex edge, the sealing convex edge is located inside the clamping convex edge, and a sealing component is provided between the clamping convex edge and / or the sealing convex edge and the outer wall of the inner shell. The sealing component is used to further achieve sealing between the top of the outer shell and the top of the inner shell.

[0017] Preferably, the sealing assembly includes an L-shaped sealing ring and an I-shaped sealing ring; one end of the L-shaped sealing ring is located in the gap between the clamping convex edge and the sealing convex edge, and the other end is located in the gap between the clamping convex edge and the inner shell; the top of the sealing convex edge is provided with a boss structure, and the I-shaped sealing ring embraces the boss structure. By combining the L-shaped sealing ring and the I-shaped sealing ring, sealing is performed from the radial and axial directions, further improving the sealing effect between the inner shell and the outer shell, improving the thermal insulation performance, and preventing moisture from entering the interlayer space to damage electrical components.

[0018] Preferably, the power source used by the heating plate can adopt a common battery structure or a rechargeable battery. When a rechargeable battery is used; the shell is provided with a contact point that can charge the power source, and the contact point and an external magnetic charging head are used for charging, which facilitates the charging operation. As a further preference, the shell is provided with a concave and convex fixing groove, and the contact point is arranged in the fixing groove, which further avoids the reversal of the positive and negative electrodes, thereby realizing fast and accurate charging of the magnetic charging head. Furthermore, the contact point is sealed and fixed to the shell by a seal.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The bowl with automatic heat preservation and heating functions of the present invention can realize automatic heating and heat preservation functions of the bowl according to needs by introducing a heating plate, etc.; it is particularly suitable for holding food that needs to be kept warm for a long time or for children, etc., and is more practical.

[0021] The bowl with automatic heat preservation and heating functions of the present invention can display the outer and inner temperatures in real time, and the heat preservation temperature can be set according to needs through the input area, and the applicability is wider; through the use of the combined sealing part, the sealing between the inner and outer shells is greatly improved, and the service life of the heating element is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the bowl with automatic heat preservation and heating functions of the present invention;

[0023] Figure 2 for Figure 1 a cross-sectional view of the structure shown;

[0024] Figure 3 for Figure 1 A disassembled view of the structure shown;

[0025] Figure 4 for Figure 1 An enlarged structural diagram of the assembly of various components within the interlayer space of the structure shown;

[0026] Figure 5 For the corresponding Figure 2 A partial cross-sectional view of the inner shell in the structure shown in part A;

[0027] Figure 6 For the corresponding Figure 2 A partial cross-sectional view of the housing in the structure shown in part A;

[0028] Figure 7 For the corresponding Figure 2 A partial cross-sectional view of the structure shown in part A of the figure after the inner shell is assembled with the sealing assembly;

[0029] Figure 8 For the corresponding Figure 2 A partial cross-sectional view of the structure shown in part A of the middle part after the inner shell and the outer shell are assembled with the sealing assembly;

[0030] Fig. 9 for Figure 1 A top view of the structure shown with the bowl cover removed;

[0031] Fig.10 A partial cross-sectional view of the sealing assembly. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings:

[0033] like Figure 1 and Figure 2 As shown, a bowl with automatic heat preservation and heating functions includes a bowl body 101 and optionally a bowl cover 102. The bowl body includes an inner shell 202 and an outer shell 203 that can enclose a sealed interlayer space 201, and the top ends of the outer shell and the inner shell are sealed and fixed; a heating plate 206 and an elastic member that tightly presses the heating plate against the outer wall of the inner shell are provided in the interlayer space.

[0034] The inner shell 202 is generally made of stainless steel, and the outer shell 203 can be made of plastic, etc. The bowl cover 102 adopts the existing structure, and the surrounding side can be provided with a sealing structure, etc., which is generally a plastic part, etc.

[0035] A display window 103 and an input area 104 are provided on one side of the shell; a concave-convex fixing groove 204 is provided on the other side of the shell, and a charging contact point is provided in the fixing groove, which is charged by an external magnetic charging head 205. The shape of the concave-convex fixing groove corresponds to the shape of the external magnetic charging head 205, so that the external magnetic charging head can quickly align and charge the positive and negative contact points.

[0036] An insulating pad 207 is provided in the interlayer space 201, and the heating plate 206 is fixed on the top surface of the insulating pad 207 by a heating plate pressing plate 208; the elastic member is arranged below the insulating pad. Under the upward elastic force of the elastic member, the heating plate 206 is closely attached to the outer wall of the bottom of the inner shell through the heating plate pressing plate 208 made of heat conductive material to achieve heat transfer. The power source used by the heating plate can adopt a common battery structure or a rechargeable battery.

[0037] The elastic member is one or more spring members arranged below the thermal insulation pad 207, the top of the spring member is against the bottom surface of the thermal insulation pad, and the bottom is against the inner wall of the shell. The thermal insulation pad is arranged directly below the inner shell; the elastic member is a plurality of spring members 209 arranged evenly circumferentially below the thermal insulation pad. With this structure, the stability of the elastic member support is ensured while ensuring the heating effect. The spring members are generally arranged in 3 to 8 numbers. A positioning column 210 is also provided in the sealed interlayer space; the spring member 209 is sleeved on the positioning column; the bottom end of the positioning column is fixed to the inner wall of the shell, and the top end passes through the thermal insulation pad 207, and an anti-slip member 211 is also provided at this end. The setting of the positioning column facilitates the positioning of the elastic member. At the same time, it plays a certain guiding role on the thermal insulation pad, further improving the positioning effect on the heating plate. The setting of the anti-slip member 211 prevents the thermal insulation pad from falling out of the positioning column, further increasing the guiding stability of the positioning column. The anti-slip part 211 can adopt a stud structure with external threads, and a corresponding threaded hole is provided at the center of the top of the positioning column. The two can be fixed by the threaded structure. The adoption of this structure also facilitates the adjustment of the height of the insulation pad to ensure that the heating plate and the heating plate pressure plate 208 thereon are tightly connected to the inner shell.

[0038] A power supply 212 for providing electric energy to the heating plate, a control panel 213 for controlling the operation of the power supply, and a temperature sensor 214 for detecting the temperature of the inner shell are also provided below the heat insulation pad 207; a temperature display component 215 is also provided at a position corresponding to the display window 103 in the enclosed space; the controller receives the temperature signal of the temperature sensor and the input temperature value of the input area, and controls the operation of the heating plate according to the two temperatures, and displays the current temperature of the inner shell through the temperature display component 215. The temperature display component can adopt an existing digital tube display screen, etc. When the power supply 212 adopts a rechargeable battery; a contact point for charging the power supply is provided on the outer shell, and the charging is facilitated by using the contact point and an external magnetic charging head. A concave-convex fixing groove is provided on the outer shell, and the contact point is arranged in the fixing groove, which further avoids the reverse phase of the positive and negative electrodes, thereby realizing fast and accurate charging of the magnetic charging head. Furthermore, the contact point is sealed and fixed to the outer shell through a seal.

[0039] See also Figure 3In the sealed space corresponding to the input area of ​​the shell, there are an input circuit board 301 and a spring touch switch 302 connected to the control board signal. The spring touch switch is in close contact with the input area for controlling the temperature. The spring touch switch is triggered by contacting the input area for controlling the temperature. The controller automatically controls the operation of the heating plate according to the input temperature value and the received temperature signal from the temperature sensor to control the temperature in the inner shell. A sealing component 303 is provided between the top of the outer shell and the inner shell.

[0040] See also Figure 4 The input circuit board 301, the spring touch switch 302 and the temperature display assembly 215 are fixed in the interlayer space through the mounting frame 401.

[0041] See also Figure 5 , Figure 5 For the corresponding Figure 2 A is a partial enlarged view of the inner shell part; Figure 6 for Figure 5 For the corresponding Figure 2 A is a partial enlarged view of the housing and components after they are matched; Figure 7 For the corresponding Figure 2 A partial enlarged view of the inner shell, outer shell and sealing assembly in FIG. 20; the top of the inner shell 202 is provided with a folded edge 501 for sealing and fixing with the outer shell, and a sealing assembly is provided between the folded edge and the outer shell. For further information, see Fig. 9 , the top of the outer shell 203 is provided with a plurality of arc-shaped snap-fitting ridges 601, and a gap 901 is left between two adjacent snap-fitting ridges 601; a radially inwardly recessed locking groove 602 is provided near the root of the outer wall of the snap-fitting ridge; a snap-fitting ridge 503 cooperating with the locking groove 602 is provided at the bottom end of the folded edge. A plurality of snap-fitting ridges are evenly arranged along the top of the outer shell. In a free state, the outer diameter of the snap-fitting ridge is slightly larger than the inner diameter of the folded edge of the inner shell. During actual installation, the folded edge of the inner shell is aligned with the top of the outer shell and pressed downward. Under the pressure of the outer shell, the snap-fitting ridge tilts slightly inward, and the snap-fitting ridge 503 of the folded edge enters the locking groove of the snap-fitting ridge, and the snap-fitting ridge returns to its position, completing the mutual fixation between the inner shell and the outer shell. At the same time, a ring-shaped sealing ridge 603 is provided at the top of the outer shell. The sealing ridge is located inside the snap-fitting ridge, and the snap-fitting ridge surrounds the outer periphery of the sealing ridge. A sealing assembly is provided between the snap-fitting ridge and the sealing ridge and the outer wall of the inner shell. A boss structure is provided at the top of the sealing ridge. See also Figure 7 and Fig.10 The sealing assembly includes an L-shaped sealing ring 701 and an I-shaped sealing ring 702; one end of the L-shaped sealing ring is located in the gap between the clamping convex edge 601 and the sealing convex edge 603, and the other end is located in the gap between the clamping convex edge and the inner shell; the I-shaped sealing ring is connected to the boss structure at the top of the sealing convex edge. By combining the L-shaped sealing ring and the I-shaped sealing ring, sealing is performed from the radial and axial directions, further improving the sealing effect between the inner shell and the outer shell.

[0042] In actual use, the power-on temperature defaults to the initial temperature (for example, 50°C), and it automatically heats up. When the temperature reaches 52°C, the heating will stop. When the temperature is lower than 48°C, it will automatically heat up again. You can also input the temperature to be controlled through the temperature input area as needed.

Claims

1. A bowl with automatic heat preservation and heating functions, comprising a bowl body, characterized in that: The bowl body comprises an inner shell and an outer shell which can enclose a sealed interlayer space, and the outer shell and the top of the inner shell are sealed and fixed; a heating plate and an elastic member which presses the heating plate tightly against the outer wall of the inner shell are arranged in the interlayer space.

2. The bowl with automatic heat preservation and heating function according to claim 1, characterized in that: A heat-insulating pad is arranged in the interlayer space, and the heating plate is fixed on the top surface of the heat-insulating pad; and the elastic member is arranged below the heat-insulating pad.

3. The bowl with automatic heat preservation and heating function according to claim 2, characterized in that: The elastic member is one or more spring members arranged below the thermal insulation pad, the top end of the spring member abuts against the bottom surface of the thermal insulation pad, and the bottom end abuts against the inner wall of the shell.

4. The bowl with automatic heat preservation and heating function according to claim 3, characterized in that: The thermal insulation pad is arranged directly below the inner shell; and the elastic member is a plurality of spring members uniformly arranged circumferentially below the thermal insulation pad.

5. The bowl with automatic heat preservation and heating function according to claim 1, characterized in that: A positioning column is arranged in the sealed interlayer space; the elastic member is sleeved on the positioning column; the bottom end of the positioning column is fixed to the inner wall of the shell, and the top end passes through the thermal insulation pad, and an anti-slip member is also arranged at the end.

6. The bowl with automatic heat preservation and heating function according to claim 1, characterized in that: A temperature sensor for detecting the temperature of the inner shell and a control panel are provided in the enclosed space; a display window and an input area are provided on the outer shell; a temperature display component is provided at a position corresponding to the display window in the enclosed space; the controller receives the temperature signal of the temperature sensor and the input temperature value of the input area, and controls the operation of the heating plate according to the two temperatures.

7. The bowl with automatic heat preservation and heating function according to claim 1, characterized in that: The top end of the inner shell is provided with a folded edge for sealing and fixing with the outer shell, and a sealing component is provided between the folded edge and the outer shell.

8. The bowl with automatic heat preservation and heating function according to claim 7, characterized in that: The top of the shell is provided with a plurality of arc-shaped snap-fitting convex edges, with a gap between two adjacent snap-fitting convex edges; the outer wall of the snap-fitting convex edge is provided with a radially inwardly recessed locking groove near the root; the bottom end of the folded edge is provided with a snap-fitting edge that cooperates with the locking groove.

9. The bowl with automatic heat preservation and heating function according to claim 8, characterized in that: The top of the outer shell is provided with an annular sealing convex edge, the sealing convex edge is located inside the clamping convex edge, and a sealing component is provided between the clamping convex edge and / or the sealing convex edge and the outer wall of the inner shell.

10. The bowl with automatic heat preservation and heating function according to claim 9, characterized in that: The sealing assembly includes an L-shaped sealing ring and an I-shaped sealing ring; one end of the L-shaped sealing ring is located in the gap between the snap-fitting convex edge and the sealing convex edge, and the other end is located in the gap between the snap-fitting convex edge and the inner shell; a boss structure is provided at the top end of the sealing convex edge, and the I-shaped sealing ring embraces the boss structure.

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