CN211269960U

CN211269960U - Cooking appliance with heating in different zones

Info

Publication number: CN211269960U
Application number: CN201922173351.3U
Authority: CN
Inventors: 陈崇得; 李锦彬; 胡玉新; 郑芝云; 李佳宏; 夏鹏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-18
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a cooking utensil of subregion heating. The cooking utensil with the heating in the subareas comprises the subarea heating tubes, wherein each section of the heating tube covers the heating area of the cooking utensil, and each section of the subarea heating tube is connected in parallel in a control circuit; the control circuit also comprises additional resistor arrays, circuit boards and a power supply, wherein the additional resistor arrays are respectively connected with the additional resistors in series with the sections of the heating tube; the control circuit also comprises a basic resistor connected with the segmented heating tube, the additional resistor array and the circuit board in parallel and a basic heating tube connected with the basic resistor in series. The cooking utensil changes the structure of the heating tube into a sectional structure, increases the coverage area of the heating tube, adjusts the heating amount of different areas of the heating tube along with the requirement of a user by utilizing an adjustable control circuit, can realize the effect that the user cooks different foods in different areas, and can also reach the effect of heating uniformity when cooking the same kind of food in the whole cooking area.

Description

Cooking appliance with heating in different zones

Technical Field

The utility model relates to a cooking utensil especially relates to a cooking utensil of subregion heating.

Background

In the state of the explosive development of modern cooking appliances, the product updating speed is faster and faster, and people are more and more inclined to use simple and practical cooking tools regardless of rice cookers, chafing dishes or other cooking appliances, but the requirements are always the same with the contradiction: simple parts cannot meet special requirements. It is this need that has prompted researchers to strive for solutions in terms of structure, performance, or control logic. The development of an electric chafing dish on the market is relatively early, the traditional electric chafing dish only seeks a temperature regulation function which is simply realized, the temperature regulation effect is achieved by using a simple temperature controller, however, along with the improvement of life quality, users find that the required temperature is different when different foods are cooked simultaneously, the temperature control method is low in temperature control accuracy, the heating area cannot be adjusted at any time according to the requirement of the cooking process, various requirements cannot be met, for the users seeking the high-quality food cooking effect, the product cannot meet the requirement, and the users seek the use of other products for replacing the electric chafing dish, so that the market needs to have a cooking appliance which can be simply operated to adjust the heating quantity of different cooking areas and the effect of uniform heating when the same food is cooked.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a cooking utensil of subregion heating, through the structure of change heating tube to and increase the coverage area of heating tube, and utilize the control circuit that can regulate and control, along with user's demand, the adjustment covers the calorific capacity at the heating tube of different regions.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a cooking utensil of subregion heating. The cooking utensil for heating in the subarea comprises a subsection heating tube, each section of the heating tube covers the heating area of the cooking utensil, and each section of the subsection heating tube is connected in parallel in the control circuit; the control circuit also comprises additional resistor arrays, circuit boards and a power supply, wherein the additional resistor arrays are respectively connected with the additional resistors in series, the circuit boards are connected with the additional resistor arrays in series, and the power supply is connected with the circuit boards in series; the control circuit further comprises a basic resistor connected with the segmented heating tube, the additional resistor array and the circuit board in parallel, and a basic heating tube connected with the basic resistor in series.

Optionally, for the zoned heating cooking appliance, the circuit board includes circuitry to vary the magnitude of the current.

Optionally, for the zoned-heating cooking appliance, the circuit board comprises a switch in series with the additional resistance.

Optionally, for the zoned heating cooking appliance, the circuit board includes a circuit to vary the voltage magnitude.

Optionally, for the zoned heating cooking appliance, the circuit board comprises a sliding varistor in series with the additional resistance.

Optionally, for the cooking appliance with heating in different zones, the control circuit further comprises a temperature control switch connected in series with the base resistor and the base heating tube.

Optionally, for the zoned-heating cooking appliance, the control circuit further comprises a power lamp in series with the power supply.

Optionally, for the zoned-heating cooking appliance, the control circuit further comprises a fuse link in series with the power source.

Optionally, for the cooking appliance with heating in different areas, the cooking appliance is one of an electric chafing dish, an electric heating pan, an electric heating stove and an electric baking stove.

Optionally, for the cooking appliance with heating in different areas, the cooking appliance comprises a heating mode in which the heating temperature of each heating area is the same and a heating mode in which the heating temperature of at least one area of each heating area is different from that of the rest of the areas.

Compared with the prior art, the utility model discloses the main advantage of technical scheme as follows:

the utility model discloses cooking utensil of subregion heating changes the sectional type structure through the structure with the heating tube to and increase the coverage area of heating tube, and utilize the control circuit that can regulate and control, along with user's demand, adjusts the calorific capacity of the different regions of heating tube, can realize the user in the effect of the different food of different regional culinary art, also can reach the effect of the homogeneity of being heated when whole culinary art regional culinary art is same kind of food.

The cooking utensil with heating in different areas of the embodiment of the utility model can adjust the heating uniformity in different areas; the requirements of users can be met by accurate temperature control and simple operation; the realization mode is simple, and the complete machine simple structure easily assembles.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a top view of a zoned heating cooking appliance according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a control circuit in the cooking appliance for zone heating provided by the embodiment;

fig. 3A is a schematic diagram illustrating a sectional distribution of heating tubes according to an exemplary embodiment of the present invention;

fig. 3B illustrates an example of a wraparound heating tube of a conventional cooking appliance;

fig. 4 is a comparison graph of the effect of temperature uniformity provided by an example of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Fig. 1 is a top view of a cooking appliance with zone heating according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of a control circuit in the cooking appliance for zone heating provided in the embodiment.

As shown in fig. 1 and 2, the cooking appliance 100 for zone heating provided by the embodiment includes segmented heat generating pipes in which each segment 210 of the heat generating pipe covers a heating zone 110 of the cooking appliance 100. Fig. 3A is a schematic diagram illustrating a sectional distribution of heating tubes according to an example of the present invention. Fig. 3B illustrates an example of a wraparound heating tube of a conventional cooking appliance.

Each section of the segmented heating tube is connected in parallel in the control circuit. The control circuit further includes an additional resistor array having respective additional resistors 220 connected in series with respective segments 210 of the heat generating tube, a circuit board 230 connected in series with the additional resistor array, and a power supply 240 connected in series with the circuit board 230. The control circuit further includes a base resistor 250 connected in parallel with the segmented heat emitting tubes, the additional resistor array, and the circuit board 230, and a base heat emitting tube 260 connected in series with the base resistor 250.

The base resistor 250 is a base heat source of the cooking appliance 100, and the additional resistor 220 controls whether to increase the local heat generation and the extra heat generation of the cooking appliance 100.

The circuit board 230 may control the amount of current in the resistor to control the amount of heat generated. In this case, the circuit board 230 may include a circuit for changing the current magnitude, and the current of a branch of the circuit board 230 is controlled by switching different resistors on and off the branch. As an alternative embodiment, the circuit board 230 may include a switch in series with the additional resistor 220. In this case, the circuit board can control the on-off of the resistors connected in series with the circuit board respectively.

The power of different zones of the heat generating tube can be realized by changing the voltage magnitude, in which case the circuit board 230 can include a circuit for changing the voltage magnitude, i.e. the total voltage is constant, and the voltage is changed by assigning the resistance magnitude of each zone. As an alternative embodiment, the circuit board 230 may include a sliding rheostat connected in series with the additional resistor 220, by which the resistance value is changed. The circuit board 230 controls the generated heat by controlling the voltage, and the power value is accurately controlled and is easy to realize.

The control circuit may also include a temperature controlled switch 270 in series with the base resistor 250 and the base heater tube 260.

The control circuit may also include a power lamp 280 in series with the power supply 240. When the power cord is on, the power lamp 280 lights up indicating that the circuit is on.

The control circuit may also include a fuse link 290 in series with the power supply 240. The fuse link 290 protects the fuse link 290 from being broken when the current is too high.

As an alternative embodiment, the cooking device may be one of an electric chafing dish, an electric heating pot, an electric heating stove, and an electric oven.

The cooking appliance of this embodiment includes a heating mode in which heating temperatures of the heating areas are the same and a heating mode in which at least one of the heating areas is different from the heating temperatures of the remaining heating areas.

When a user cooks food, there are two requirements: the first is to cook the same food in the heating area 110, so the temperature of each position of the heating area 110 is required to be uniform, and the expected effect 1 in fig. 4 can be selected, that is, all the additional resistors 220 are connected to the circuit through the control logic in the circuit board 230, and the resistance value of the resistors is controlled to be a set resistance value, so that the heated temperature of all the areas of the heating area 110 reaches the requirement of a user, and the temperature is basically consistent, so that the heated uniformity is realized; the second requirement is that the heating area 110 is divided into a plurality of different cooking areas, and a user cooks different foods in the different cooking areas and requires different heat receiving amounts of each area, and according to the requirement, only the control logic of the circuit board 230 is needed, that is, different cooking areas correspond to different heating tube sections (resistors), so that only the resistance and the on-off condition of the resistor of each area need to be controlled, and the expected effect 2 and the expected effect 3 in fig. 4 can be achieved, that is, different cooking areas have different heat receiving amounts, and the requirement that the user cooks different foods at the same time is met. Finally, the mode can be freely switched by only operating a plurality of simple keys by the user, and the user can select the mode according to different requirements.

The utility model discloses cooking utensil of subregion heating is through the structure of change heating tube to and increase the coverage area of heating tube, and utilize the control circuit that can regulate and control, along with user's demand, adjust the calorific capacity of the different regions of heating tube, can realize the user in the effect of the different food of different regional culinary art, also can reach the effect of the homogeneity of being heated when whole culinary art regional culinary art is same kind of food. As shown in fig. 4, the expected effect 1 is an effect of uniform heating, the expected effect 2 is to achieve different temperatures for different areas of higher temperature, and the expected effect 3 is to achieve different temperatures for different areas of lower temperature.

The above mentioned embodiments are only examples of the present invention, and not intended to limit the scope of the claims of the present invention, and all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the claims of the present invention.

Claims

1. A cooking utensil with partitioned heating is characterized by comprising a segmented heating tube, wherein each segment of the heating tube covers a heating area of the cooking utensil, and each segment of the segmented heating tube is connected in parallel in a control circuit;

the control circuit also comprises additional resistor arrays, circuit boards and a power supply, wherein the additional resistor arrays are respectively connected with the additional resistors in series, the circuit boards are connected with the additional resistor arrays in series, and the power supply is connected with the circuit boards in series;

the control circuit further comprises a basic resistor connected with the segmented heating tube, the additional resistor array and the circuit board in parallel, and a basic heating tube connected with the basic resistor in series.

2. The zoned heating cooking appliance of claim 1, wherein the circuit board comprises circuitry to vary the magnitude of the current.

3. The zone heating cooking appliance of claim 2, wherein said circuit board includes a switch in series with said additional resistor.

4. The zoned heating cooking appliance of claim 1, wherein the circuit board comprises circuitry to vary the voltage level.

5. The zone heating cooking appliance of claim 4, wherein the circuit board includes a sliding rheostat in series with the additional resistor.

6. The zone heating cooking appliance of claim 1, wherein the control circuit further comprises a temperature controlled switch in series with the base resistance and the base heat pipe.

7. The zone heated cooking appliance of claim 1, wherein the control circuit further comprises a power lamp in series with the power source.

8. The zone heated cooking appliance of claim 1, wherein the control circuit further comprises a fuse link in series with the power source.

9. The zone heating cooking appliance of claim 1, wherein the cooking appliance is one of an electric chafing dish, an electric heating pan, an electric heating stove, and an electric oven.

10. The zone heating cooking appliance according to claim 1, wherein the cooking appliance includes a heating mode in which heating temperatures of the heating zones are the same and a heating mode in which a heating temperature of at least one zone of the heating zones is different from that of the remaining zones.