An electronic stepless intelligent control multifunctional oven

Abstract

The present invention belongs to the technical field of electric ovens, and specifically relates to an electronic stepless intelligent control multifunctional oven. The oven comprises a first heating tube group, a second heating tube group, a control device and a switch, wherein the first heating tube group and the second heating tube group are electrically connected to the control device and the switch respectively, the first heating tube group and the second heating tube group are arranged in the electric oven, the first heating tube group comprises two heating tubes, the second heating tube group comprises a single heating tube, the three heating tubes have the same rated output power, the three heating tubes are connected in parallel with their positive and negative electrodes electrically connected to the same circuit, and the switch is used to switch the working mode of the first heating tube group and the second heating tube group of the electric oven; the oven can solve the problem in the prior art that the heating speed and the heating area cannot be obtained at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of electric ovens, and in particular relates to an electronic stepless intelligent controlled multifunctional oven. Background Art

[0002] In recent years, more and more people have been cooking food in electric ovens. Since the use of electric ovens is more environmentally friendly than gas ovens or charcoal ovens, and the food produced is healthier than traditional ovens, electric ovens have been widely used with the development of the times.

[0003] Due to differences in living habits, electric ovens are more commonly used in North America and other regions. General electric ovens are equipped with double heating tubes to expand the heating area, which can not only make larger food, but also small but large food. However, since the ordinary North American mains voltage is 120V and the current is 15A, the total power cannot exceed 1800W. If the power of the two tubes on both sides is 1800W, it exceeds the mains power range. If 1800W is divided into the heating tubes on both sides, that is, only 900W each, the temperature in the oven will heat up very slowly. In the process of heating food, some food needs to be quickly heated in a short time to lock the moisture of the food to prevent the moisture of the food from being dried out during the slow heating process, affecting the taste of the food. The existing double heating tube electric oven can only maintain a maximum of 900W for a single heating tube due to power limitations. If only the single heating tube is set to 1800W, the electric oven will be smaller in size and cannot meet more usage needs.

[0004] Based on this need, the existing electric oven is improved so that it can meet more usage requirements based on the original structure. Summary of the invention

[0005] In order to solve the problem in the prior art that the existing electric ovens cannot take into account different usage requirements of heating area and heating speed due to the limitation of mains power in North America, the present invention provides an electronic stepless intelligent control multifunctional oven.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An electronic stepless intelligent control multifunctional oven of the present invention comprises a first heating tube group, a second heating tube group, a control device and a switch, wherein the first heating tube group and the second heating tube group are electrically connected to the control device and the switch respectively, the first heating tube group and the second heating tube group are arranged in the electric oven, the first heating tube group comprises two heating tubes, the second heating tube group comprises a single heating tube, the three heating tubes have the same rated output power, the three heating tubes are connected in parallel with their positive and negative electrodes being electrically connected to the same circuit, and the switch is used to switch the working mode of the first heating tube group and the working mode of the second heating tube group of the electric oven.

[0008] Furthermore, the rated power of any of the heating tubes is less than or equal to the mains power, and the rated power of any of the heating tubes is greater than or equal to 1 / 2 of the mains power.

[0009] Furthermore, an external battery is included, and the second heating tube group is provided with two input circuits of a mains circuit and a battery circuit, and the external battery is used to supply power to the second heating tube group alone.

[0010] Furthermore, it also includes a rotating bracket, which is rotatably connected to the electric oven body, and the first heating tube group and the second heating tube group are detachably connected to the rotating bracket.

[0011] Furthermore, a groove is provided on the top of the furnace body, and a detachable oil receiving pan is provided in the groove. The oil receiving pan is located below the first heating tube group and the second heating tube group, and an oil drain port is provided at the bottom of the oil receiving pan.

[0012] Furthermore, it also includes an oil collecting pan, the side of the furnace body is provided with an opening, the oil collecting pan is slidably arranged in the opening, and the oil collecting pan is located below the oil receiving pan.

[0013] Furthermore, it also includes a thermal insulation enclosure, which is arranged on three sides around the outside of the first heating tube group and the second heating tube group.

[0014] Furthermore, it also includes a heat-insulating net, which is installed on the top of the heat-insulating enclosure.

[0015] Furthermore, it also includes a control device, which is arranged on the furnace body and is used to control the on-off and magnitude of the current of the first heating tube group and the second heating tube group.

[0016] Furthermore, it also includes a first temperature sensor and a second temperature sensor, the two temperature sensors are electrically connected to the control device respectively, and the first temperature sensor and the second temperature sensor are used to measure the temperatures of the first heating tube group and the second heating tube group respectively.

[0017] The beneficial effects of the present invention are:

[0018] (1) By simultaneously providing two groups of heating tubes, one of which is a single heating tube and the other is a double heating tube, the two groups of heating tubes are controlled separately, so that when a larger heating area is required, one of the heating tubes in the first heating tube group and the heating tubes in the second heating tube group are opened to expand the heating area; when the heating speed needs to be increased, the second heating tube group is closed and both heating tubes in the first heating tube group are opened to increase the heating speed;

[0019] (2) By setting up an external battery, when the first heating tube group is at the maximum heating power, the second heating tube group is powered by the external battery, so that the first heating tube group and the second heating tube group can both be at the maximum heating power, and the requirements of heating area and heating speed can be met at the same time.

[0020] (3) By setting up thermal insulation fences and thermal insulation nets, heat can be effectively preserved and radiated, reducing energy consumption and improving energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a structural schematic diagram of the upper cover opening of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the upper cover and the closed cover of the present invention;

[0024] Figure 3 This is a schematic diagram of the flat structure of the heating tube of the present invention;

[0025] Figure 4 This is a schematic diagram of the grilling grid structure of the present invention;

[0026] Figure 5 This is a structural schematic diagram of the oil receiving pan of the present invention;

[0027] Figure 6 It is a partial structural schematic diagram of the heating tube and the rotating bracket of the present invention;

[0028] Figure 7 It is a circuit schematic diagram of the present invention.

[0029] Explanation of the accompanying drawings: 1. furnace body; 2. first heating tube group; 3. second heating tube group; 4. thermal insulation enclosure; 5. thermal insulation net; 6. oil collecting tray; 7. control device; 8. oil collecting tray; 9. upper cover; 10. baking net; 11. rotating bracket. DETAILED DESCRIPTION

[0030] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0031] like Figure 1-7 As shown, an electronic stepless intelligent control multifunctional oven of the present invention comprises a first heating tube group 2, a second heating tube group 3, a control device 7 and a switch, the first heating tube group 2 and the second heating tube group 3 are electrically connected to the control device 7 and the switch respectively, the first heating tube group 2 and the second heating tube group 3 are arranged in the electric oven, the first heating tube group 2 comprises two heating tubes, the second heating tube group 3 comprises a single heating tube, the three heating tubes have the same rated output power, the three heating tubes are connected in parallel with each other and the positive and negative electrodes thereof are electrically connected to the same circuit, and the switch is used to switch the working mode of the first heating tube group 2 and the working mode of the second heating tube group 3 of the electric oven;

[0032] Since the voltage and current in North America are different from those in China, the mains voltage in North America is generally 120V and the current is 15A, which limits the total power of a single electrical appliance to no more than 1800W, otherwise the circuit breaker will trip. Therefore, electrical appliances sold to North America must be designed according to their power consumption. In the technical field of electric ovens, in order to meet different needs, two heating tubes are generally arranged in the electric oven, and the heating tubes are located on the left and right sides of the heating area in the electric oven. The area of ​​the heating area is increased to bake larger food. However, under this requirement, the maximum power of the two heating tubes is limited to 900W, and the total power reaches 1800W. Although the heating area is large, some food needs to be heated quickly in a short time during the baking process to lock the moisture inside the food. Although some electric ovens adopt a design of a single heating tube of 1800W or a design of arranging two 900W heating tubes in a smaller position in the electric oven, the heating area is small and cannot meet the diverse needs. That is, the electric ovens in the prior art can only meet one of the heating area and the heating speed.

[0033] In order to enable the electric oven to meet different usage requirements at the same time, so that it can meet the requirements of rapid heating and a larger heating area, the arrangement of the heating tubes in the electric oven is improved, and two groups of heating tube groups are respectively arranged on the left and right sides of the adding area of ​​the electric oven, wherein the first heating tube group 2 is a double heating tube, and the second heating tube group 3 is a single heating tube, and the power of each heating tube is 900W. When the electric oven is used in North America, after it is connected to the mains, when it is necessary to heat the food quickly, the working mode is switched by the switch control device 7, and when it is switched to the first heating tube group, the second heating tube group 3 is a single heating tube. When the tube group 2 is in working mode, the two heating tubes on the first heating tube group 2 are operated at the same time, so that it can reach the maximum power of 1800W. When only a low fire is needed to bake food, it is switched to the working mode of the second heating tube group 3, and one of the heating tubes in the first heating tube group 2 and the second heating tube group 3 are turned on, so that the maximum operating power does not exceed 1800W, ensuring the normal use of the electric oven. At the same time, one of the heating tubes in the first heating tube group 2 and the second heating tube group 3 are turned on to expand the heating area, so that more food can be heated at the same time, and intelligent control and switching of firepower can be achieved through the control device 7 and the switch.

[0034] The electric oven that can simultaneously meet the heating area and heating speed in this solution can not only be applied to the mains power state in North America, but also meet the needs of similar products in other countries and regions, and accordingly meet various usage requirements under the same mains power conditions. Therefore, in one embodiment, the rated power of any heating tube is less than or equal to the mains power, and the rated power of any heating tube is greater than or equal to 1 / 2 of the mains power;

[0035] In China, the civilian electricity voltage is generally 220V, and the current is generally 10A-15A, which fluctuates slightly depending on the location. Under this voltage and current condition, the maximum power is about 3300W. In an electric oven with the same structure, the power of a single heating tube can be about 1650W, which can meet more usage needs.

[0036] Since the electric oven can only meet the use power of two 900W heating tubes at most when it is connected to the mains, in some cases, in order to improve the efficiency of baking food, for example, some food needs to be baked by high fire, while some food can be baked by low fire, when the space on the electric oven is sufficient, if it is only connected to the mains, it cannot meet the two use cases at the same time. Therefore, in one embodiment, an external battery is also included, and the second heating tube group 3 has two input circuits, and the external battery is used to supply power to the second heating tube group 3 alone;

[0037] Since the electric oven in this solution has a total of three heating tubes with a power of 900W each, and the external mains power can only meet the use of two of the heating tubes at most, an external battery is provided, and the second heating tube group 3 has two power supply circuits. When the three heating tubes on the electric oven need to be used at the same time, the line connected to the mains on the second heating tube group 3 is disconnected, so that the mains power only supplies power to the first heating tube group 2, so that it can be at a maximum output power of 1800W, and the second heating tube group 3 is connected to the external battery after disconnecting the mains power, and is powered by the external battery. Since the external battery is Generally, the DC power is direct current, while the mains power is alternating current. Therefore, an inverter needs to be set on the external battery to convert the DC power in the external battery into alternating current. Then, the alternating current output by the external battery is connected to the second heating tube group 3 to realize the power supply to the second heating tube group 3. When the external battery supplies power to the second heating tube group 3, the demand for simultaneous use of three heating tubes in the electric oven can be met. After the external battery is connected, one side of the first heating tube group 2 can bake food that needs to be heated quickly, while the second heating tube group 3 can bake other food at the same time, thereby improving the use efficiency and meeting the diversified use needs.

[0038] During the process of baking food, there is a baking net 10 above the heating tube, and the food is placed on the baking net 10 for baking. By brushing oil on the food, the food is prevented from being burnt. At the same time, the grease inside some meats will drip onto the first heating tube group 2 and the second heating tube group 3 during the baking process, and also drip onto the furnace body 1 below the heating tube, making it difficult to clean the grease. In order to facilitate the cleaning of the heating tube and the furnace body 1 below the heating tube, in one embodiment, a rotating bracket 11 is further included. The rotating bracket 11 is rotatably connected to the furnace body 1 of the electric oven, and the first heating tube group 2 and the second heating tube group 3 are detachably connected to the rotating bracket 11.

[0039] The rotating bracket 11 is composed of an upper plate and a lower plate, and the rotating bracket 11 is rotatably connected to the furnace body 1. The upper plate and the lower plate of the rotating bracket 11 are detachably connected, and the first heating tube group 2 and the second heating tube group 3 are clamped by the upper plate and the lower plate, and are connected by the rotation of the rotating bracket 11. When food needs to be baked, the heating tube is placed horizontally by the rotating bracket 11. When it needs to be cleaned, one side of the heating tube is rotated and raised by the rotating bracket 11, so that the bottom surface of the heating tube and the furnace body 1 below the heating tube can be cleaned to prevent grease accumulation after long-term use. In addition, since the number of the two groups of heating tubes is different, one side is a single tube and the other side is a double tube, the upper plate and the lower plate of the rotating bracket 11 have the same number of bayonet holes for clamping the two groups of heating tubes, so that the positions of the two groups of heating tubes can be conveniently exchanged according to different usage habits, or the heating tube groups on both sides are double heating tubes on the basis of connecting an external battery.

[0040] In the above embodiment, although the heating tube can be rotated and opened by rotating the bracket 11, since it is an electric oven, there are electrical devices inside it. If it is directly cleaned with water, it is easy to cause a short circuit in the internal electrical devices or lines. Therefore, in order to facilitate cleaning while ensuring the electrical safety of the equipment, a groove is provided on the top of the oven body 1, and a detachable oil receiving pan 8 is provided in the groove. The oil receiving pan 8 is located below the first heating tube group 2 and the second heating tube group 3, and an oil drain port is provided at the bottom of the oil receiving pan 8;

[0041] In order to prevent grease from dripping directly onto the furnace body 1 below the heating tube, a groove is provided at the position, and an oil receiving pan 8 is placed in the groove. The bottom of the oil receiving pan 8 has an oil drain port for draining the oil. The oil drain port is located in the middle of the bottom of the oil receiving pan 8. The oil receiving pan 8 is inclined from high to low from the sides thereof toward the direction of the oil drain port. The oil drain port is located at the lowest point on the oil receiving pan 8, so that the dripping grease can flow out of the oil receiving pan 8 more easily.

[0042] Since grease has a certain viscosity, although a part of it can be discharged through the oil drain port, after long-term use, the grease will gradually solidify, so it is necessary to clean the oil pan 8. Since the oil pan 8 is detachably connected to the furnace body 1, after taking out the oil pan 8, it can be directly cleaned with water or a detergent without causing water to enter the circuit inside the furnace body 1, thereby ensuring the safety of the electric oven.

[0043] In the above embodiment, the oil collecting pan 8 receives the grease dripping during the baking process and discharges it to the outside of the furnace body 1 through the oil discharge port. If the grease is directly discharged to the outside of the furnace body 1, it is easy to cause environmental pollution. In order to meet the requirements of environmental protection, it is necessary to recycle and process the used grease. Therefore, an oil collecting pan 6 is further included. An opening is opened on the side of the furnace body 1. The oil collecting pan 6 is slidably arranged in the opening. The oil collecting pan 6 is located below the oil collecting pan 8.

[0044] The oil collecting pan 6 is arranged in the opening on the furnace body 1, and its position is located below the oil receiving pan 8. The grease dripping from the oil drain port on the oil receiving pan 8 is received by the oil collecting pan 6. Since the oil collecting pan 6 is slidably connected to the furnace body 1, it is removable at the opening position, so that the grease collection situation in the oil collecting pan 6 can be conveniently checked. When the grease in the oil collecting pan 6 accumulates to a certain amount, the oil collecting pan 6 needs to be taken out and the grease inside it needs to be recycled to prevent environmental pollution.

[0045] During the use of the electric oven, since the food is placed above the heating tube through the grill 10, the heating tube can only bake one side of the food. After baking one side of the food for a period of time, it is turned over to the other side to continue baking. In this process, a large amount of heat is directly dissipated into the air and is not effectively utilized, resulting in a long baking time. In order to improve the efficiency of heat utilization and prevent the heat from being directly dissipated into the air, in one embodiment, a heat preservation enclosure 4 is further included. The heat preservation enclosure 4 is arranged on three sides around the outside of the first heating tube group 2 and the second heating tube group 3;

[0046] By arranging a heat-insulating enclosure 4 on the side of the heating pipe, and the material of the heat-insulating enclosure 4 is metal, it surrounds the three sides of the heating pipe, and the side facing the user is open, which can effectively block the emission of heat radiation from the heating pipe. Since the heat-insulating enclosure 4 is close to the heating pipe and is made of metal, the heat radiation generated by the heating pipe is transferred to the heat-insulating enclosure 4 and then stored by the heat-insulating enclosure 4, so that the area surrounded by the heat-insulating enclosure 4 forms a local high-temperature zone, which can effectively reduce the efficiency of heat dissipation, and the heat radiation absorbed by the heat-insulating enclosure 4 can be transferred to the top of the food. In the process of heating the bottom of the food by the heating pipe, the top of the food can be heated to a certain extent by the heat-insulating enclosure 4.

[0047] In order to further improve the utilization efficiency of the heat generated by the heating pipe and reduce the heat loss efficiency, a heat preservation net 5 is further included, and the heat preservation net 5 is set on the top of the heat preservation enclosure 4; the heat preservation enclosure 4 only insulates the side position of the heating pipe, and because the air will rise after being heated, taking away a large amount of heat, and the heat preservation enclosure 4 in the above embodiment cannot retain the heat lost from the top, so by setting the heat preservation net 5 on the top of the heat preservation enclosure 4, the effect of the heat preservation enclosure 4 can be produced;

[0048] At the same time, in order to improve the reflection efficiency of thermal radiation, the inner side of the thermal insulation enclosure 4 and the thermal insulation net 5 is a metal mirror, which further improves the reflection efficiency of thermal radiation, and has a better thermal insulation effect. More food can be heated while consuming the same amount of electricity, effectively reducing energy consumption and improving energy utilization efficiency.

[0049] Since different temperatures need to be used according to different foods during the process of baking food, different heating tubes on the electric oven are controlled by the control device 7. First, the electric oven is powered on, and the switch state mode of "first heating tube group 2 / second heating tube group 3" is detected. When it is detected that the switch is in the ON state, it is the working mode of the first heating tube group 2 alone, and the two heating tubes on the first heating tube group 2 are controlled to work (the second heating tube group 3 is not working), and then the temperatures of the two heating tube groups can be set by the left knob and the right knob, wherein the left knob controls the temperature of the first heating tube group 2, and the right knob controls the temperature of the second heating tube group 3. The right knob fails during the use of the left knob; when it is detected that the switch is in the OFF state, it is the simultaneous working mode of the first heating tube group 2 and the second heating tube group 3, and the first heating tube group 2 and the second heating tube group 3 are controlled to work. At this time, the left knob accurately controls the temperature of the first heating tube group 2, and the right knob accurately controls the temperature of the second heating tube group 3. The left and right knobs can set the required temperature. By turning the right knob, the temperature can be adjusted steplessly, and the adjustment range is larger and more accurate.

[0050] In one embodiment, it also includes an upper cover 9, which is hinged to the oven body 1. The upper cover 9 covers the first heating tube group 2, the second heating tube group 3, the heat preservation enclosure 4 and the heat preservation net 5, and can be used for the heating effect in some baking methods. At the same time, the upper cover 9 can be closed when the electric oven is not in use to prevent dust or water from entering the interior.

[0051] In one embodiment, a first temperature sensor and a second temperature sensor are further included, the two temperature sensors are electrically connected to the control device 7, and the first temperature sensor and the second temperature sensor are used to measure the temperatures of the first heating tube group 2 and the second heating tube group 3, respectively;

[0052] The first temperature sensor and the second temperature sensor are electrically connected to the control device 7, and the detected temperatures are then displayed through the display panel, and the temperatures of the three heating tubes can be accurately adjusted according to the displayed temperatures.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An electronic stepless intelligent control multifunctional oven, characterized by: The electric oven comprises a first heating tube group, a second heating tube group, a control device and a switch. The first heating tube group and the second heating tube group are electrically connected to the control device and the switch respectively. The first heating tube group and the second heating tube group are arranged in the electric oven. The first heating tube group comprises two heating tubes, the second heating tube group comprises a single heating tube, the three heating tubes have the same rated output power, the three heating tubes are connected in parallel with their positive and negative electrodes being electrically connected to the same circuit, and the switch is used to switch the working mode of the first heating tube group and the working mode of the second heating tube group of the electric oven; the rated power of any of the heating tubes is less than or equal to the mains power, and the rated power of any of the heating tubes is greater than or equal to 1 / 2 of the mains power; It also includes an external battery. The second heating tube group is provided with two input circuits, a mains circuit and a battery circuit. The external battery is used to supply power to the second heating tube group alone.

2. The electronic stepless intelligent control multifunctional oven according to claim 1, characterized in that: It also includes a rotating bracket, which is rotatably connected to the electric oven body, and the first heating tube group and the second heating tube group are detachably connected to the rotating bracket.

3. The electronic stepless intelligent control multifunctional oven according to claim 2, characterized in that: A groove is provided on the top of the furnace body, and an oil receiving pan is detachably provided in the groove. The oil receiving pan is located below the first heating tube group and the second heating tube group, and an oil drain port is provided at the bottom of the oil receiving pan.

4. The electronic stepless intelligent control multifunctional oven according to claim 3, characterized in that: It also includes an oil collecting pan. An opening is opened on the side of the furnace body. The oil collecting pan is slidably arranged in the opening. The oil collecting pan is located below the oil receiving pan.

5. The electronic stepless intelligent controlled multifunctional oven according to claim 1, characterized in that: It also includes a heat-insulating enclosure, which is arranged on three sides around the outside of the first heating tube group and the second heating tube group.

6. The electronic stepless intelligent control multifunctional oven according to claim 4, characterized in that: It also includes a heat-insulating net, which is erected on the top of the heat-insulating enclosure.

7. The electronic stepless intelligent control multifunctional oven according to claim 1, characterized in that: It also includes a first temperature sensor and a second temperature sensor, the two temperature sensors are electrically connected to the control device respectively, and the first temperature sensor and the second temperature sensor are used to measure the temperatures of the first heating tube group and the second heating tube group respectively.

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