WO2020077974A1

WO2020077974A1 - Household electric oven

Info

Publication number: WO2020077974A1
Application number: PCT/CN2019/084474
Authority: WO
Inventors: 曹继林
Original assignee: 浙江峰恒电器有限公司
Priority date: 2018-10-15
Filing date: 2019-04-26
Publication date: 2020-04-23
Also published as: CN109008668A

Abstract

A household electric oven, comprising a box body (1), a heating member (2), a control device (3) connected to the heating member (2), a baking tray (4), and a gridiron (5). The box body (1) comprises a housing (11) having an opening (15) and an inner box body (12) having a heating cavity (14); the inner box body (12) is fixedly provided inside the housing (11), and a heat insulating cavity (13) is formed between the inner box body (12) and the inner wall of the housing (11); the inner box body (12) is provided with an interface (16) matched with the opening (15), the inner box body (12) is connected to the housing (11) at the opening (15) by means of the interface (16), and the gridiron (5) may be put in the heating cavity (14) by means of the opening (15) and the interface (16); the control device (3) is fixed to the housing (11), a heating wire is pre-buried into a ceramic material and then subjected to high-temperature baking to form the heating member (2), and the heating member (2) is fixed to the top wall of the heating cavity (14). When foods are baked by the electric oven, the heating temperature of the foods is high, the time for baked foods is short, the foods are heated uniformly without generating oil fume, and the household electric oven has the advantages of energy saving and high efficiency, and the foods taste good.

Description

Household electric oven

Technical field

The invention relates to a household electric oven, which belongs to the field of household appliances.

Background technique

With the improvement of living standards, household electric grills are used by more and more families because of their simple operation and quick and convenient frying and roasting food. Existing household electric ovens generally include a base with an upper opening, a grill pan disposed on the base opening, an electric heating tube fixed to the bottom of the grill pan, a control component that controls the heating of the electric heating tube and the temperature of the grill, and the control component Accommodated in the base. This kind of household electric oven has the following defects in actual use:

1. The electric heating tube is fixed on the bottom of the baking tray, and the heat transfer efficiency is low. When the electric heating tube heats the baking pan, the surface temperature of the baking pan is lower due to the more heat dissipated by the baking pan itself (for example: an electric heating tube with a power of 2000W will heat the temperature of about 650 ° C from an aluminum baking pan. The temperature of the heated surface is reduced to about 300 ° when it is transferred to the grilled surface), so it takes a longer time for the food to be cooked on the baking tray, which wastes energy and affects the taste of the food after being cooked;

2. The food is heated on one side of the baking tray, which tends to produce more oil fumes during the grilling process. At the same time, in order to avoid the food from being burnt, it needs to be turned over many times during the grilling process, and the operation is cumbersome.

Summary of the invention

The present invention is mainly aimed at solving the technical defects of low heat transfer efficiency existing in the prior art and the large oil fume when grilling food, which needs to be turned over many times, and provides a high heat transfer efficiency, no need to turn over when grilling food And there is no oil fume home electric oven.

The present invention aims to solve the above technical defects mainly through the following technical solutions: the present invention includes a heating element, a control device connected to the heating element, and a baking tray, characterized in that it also includes a box body, a grill that fixes the baking tray, The box body includes an outer shell with an opening, and an inner box body with a heating cavity formed on the inner wall. The inner box body is fixed in the outer shell and a heat insulation cavity is formed between the inner wall of the outer shell and the inner box body has an interface matching the opening. The shell is connected at the opening, the grill can be put into the heating cavity through the opening and the interface, the control device shell is fixedly connected, the heating element is fired by pre-buying the heating wire in the ceramic material for high temperature baking, and generates heat The piece is fixed on the top wall of the heating cavity.

Preferably, the clip cavity is provided with an air inlet and an air outlet, the air inlet and the air outlet are located at the bottom and top of the housing, respectively, and a fan for heat dissipation is provided in the clip cavity near the air inlet.

Preferably, the grill includes a U-shaped bracket, an oil receiving plate, and an oil receiving pan. A plurality of slots are distributed on the inner walls of both sides of the bracket. The grill pan, oil receiving plate, and oil receiving pan can be opposed along the two sides through the front opening of the bracket The slot of the bracket is inserted into the bracket. The bottom end of the bracket has a downward projection. The bottom wall of the heating cavity has a positioning groove with a shape matching the projection. When the projection falls into the positioning groove, the bracket is positioned in the heating cavity.

Preferably, the control device has a first temperature measuring probe that monitors the temperature of the heating element and a second temperature measuring probe that monitors the temperature of the food in the heating cavity. The first temperature measuring probe is fixed on the heating element, and the second temperature measuring probe is installed in the box体外。 Body outside.

Preferably, the heat insulation cavity is provided with a mesh partition, which divides the heat insulation cavity into an upper heating area and a lower grilling area, the heating element is located in the heating area, and the grill is accommodated in the grilling area.

Therefore, the present invention is novel in design, reasonable in structure, and has the following advantages:

The invention is provided with a box with a heat insulation cavity, and the heating element sintered by the electric heating wire and the ceramic material is arranged on the top wall of the heating cavity. The heat generated by the heating element can quickly heat the internal space of the heating cavity and is placed on the grill When heating food in the heating cavity, the heat generated by the heating element can be directly used for the food on the baking tray. Therefore, when the invention is used, the heating temperature of the food is higher, the time of baking the cooked food is shorter, and the food is heated evenly without oil smoke Compared with the existing technology, it has the advantages of energy saving, high efficiency and good food taste;

The heating element is formed by sintering the heating wire into the ceramic material for high temperature baking, so the heating element has the advantages of good heating effect, high strength and high safety performance;

A heat insulation cavity is formed between the outer shell of the box body and the inner box body, which can effectively play the role of thermal insulation, which can not only reduce the loss of heat in the heat insulation cavity but also prevent the outer shell from being hot;

As a further optimization, an air inlet, an air outlet and a fan are also provided in the thermal insulation cavity, and the surface temperature of the outer shell of the present invention during use is further reduced by the fan exhaust, thereby effectively improving the safety performance of the present invention;

As a further optimization, the grill is equipped with multiple slots for inserting the grill pan. You can determine the distance between the grill pan and the heating element by selecting slots with different heights according to the heating requirements of the food. You can also insert multiple grills To improve the baking efficiency, when the protrusion on the bottom end of the grill falls into the positioning groove on the bottom wall of the heating cavity, the grill is positioned and fixed in the heating cavity, and as long as the rear end of the grill is lifted up to disengage the protrusion After positioning the groove, the grill can be restored to a movable state, which is simple and convenient;

As a further optimization, the present invention is provided with a first temperature probe fixed on the heating element and a second temperature probe for monitoring the temperature of the food. The first temperature probe and the second temperature probe can help the operator, respectively Understand the temperature of the heating element and the temperature of the food, and can accurately control the heating temperature and heating time of the food;

As a further optimization, a mesh-shaped partition is provided in the heat-insulating cavity, and the mesh-shaped partition separates the heating element from the grilling area, which can avoid the danger of being burned when the heating element is touched during misoperation.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of an embodiment of the present invention;

Figure 2 is a schematic diagram of the box in the embodiment shown in Figure 1;

FIG. 3 is a schematic diagram of the grill in the embodiment shown in FIG. 1.

DESCRIPTION OF REFERENCE NUMERALS: 1. box; 11. outer shell; 12. inner box; 121. positioning groove; 13. heat insulation cavity; 131. air inlet; 132. air outlet; 14. heating cavity; 142. net Shaped partition; 143. Fever area; 144. Frying area; 15. Opening; 16. Interface; 2. Heating element; 3. Control device; 4. Baking tray; 41. Oil leak groove; 42. Handle; 43. Handle jack; 5. grill; 51. bracket; 52. slot; 53. oil plate; 54. protrusion; 55. oil pan; 6. fan; 7. first temperature probe; 8. Two temperature probes.

detailed description

The technical solutions of the present invention will be further specifically described below through the embodiments and the accompanying drawings.

Embodiment 1: As shown in FIG. 1, FIG. 2, and FIG. 3, the present invention includes a cabinet 1, a heating element 2, a control device 3, a baking tray 4, a grill 5, and a fan 6;

The cabinet 1 includes an outer casing 11 and an inner casing 12 suspended in the outer casing 11. A heat insulation cavity 13 is formed between the inner casing 12 and the outer casing 11, and an opening 15 for the grill 5 to pass through is formed in the middle of the front panel of the outer casing 11, The bottom plate of the casing 11 has an air inlet 131, the top plate of the casing 11 has an air outlet 132, the fan 6 is fixed to the bottom plate of the casing 11 above the air inlet 131, the control device 3 is fixed to the front panel of the casing 11, and the heating element 2 and the fan are controlled by the control device 3 6 to control;

The top of the inner box 12 is fixedly connected to the top plate of the outer shell 11 through a connecting member. A heating cavity 14 is formed inside the inner box 12, and the interface 16 of the inner box 12 is connected to the opening 15 through which the grill 5 can be placed into the heating cavity 14;

The heating element 2 is fired by pre-buying the heating wire in a ceramic shape in a ceramic material for high-temperature baking. The heating element 2 is plate-shaped and fixed to the top wall of the heating cavity 14, and the heating element 2 is controlled by a connecting line Device 3 connection;

A mesh partition 142 is provided in the heating cavity 14. The mesh partition 142 has the same height as the upper edge of the opening 15 and separates the heat insulation cavity 14 into a heating area 143 and a grilling area 144. The heating element 2 is located in the heating area 143 , The grill 5 enters and exits the grilling area 144 through the opening 15;

The grill 5 has a bracket 51 bent into a U shape, an oil receiving plate 53, and an oil pan 55. The two opposite side walls of the bracket 51 have a plurality of slots 52 arranged vertically, the grill pan 4, the oil receiving plate 53, The oil receiving pan 55 is inserted into the bracket 51 in order from the top to the bottom along the opposite slots 52 on both sides, the plate of the oil receiving plate 53 is inclined to the side of the oil receiving pan 55, and the oil generated when grilling food on the grill pan 4 After dropping into the oil receiving plate 53 through the oil leakage groove 41, it is introduced into the oil receiving pan 55 through the oil receiving plate 53;

The control device 3 has a first temperature measuring probe 7 and a second temperature measuring probe 8, the first temperature measuring probe 7 is connected to the heating element 2 for monitoring the temperature of the heating element 2, and the second temperature measuring probe 8 is connected outside the cabinet 1 through The device is connected to the main board of the control device 3, and the second temperature measuring probe 8 penetrates the food on the baking tray 4 through the needle-shaped head to measure the temperature of the food.

When the present invention is used, the food is placed on it, the baking tray 4 is inserted into the grill 5 and the grill 5 is placed in the grilling area 144, and the heating element 2 is controlled by the control device 3 to generate electricity and the high temperature generated by the heating element 2 (use 2000W (The temperature of the heating wire can reach 600 ° C) is directly transferred from the heating area 143 to the grilling area 144 to evenly heat the food on the grill pan 4. Due to the high heating temperature of the food, the cooked food takes less time (100g steak can be cooked in 2 minutes). The food is evenly heated and no smoke is generated, so it has the advantages of energy saving, high efficiency, and good food taste.

As described above, the present invention is explained through the description of the technical solutions, drawings and embodiments of the present invention, but the drawings and embodiments are only used to illustrate and help understand the present invention, and cannot be an undue limitation of the present invention . Technical solutions formed by equivalent or equivalent changes and adjustments made by those skilled in the art according to the technical solutions, drawings, or embodiments of the present invention fall within the protection scope of the present invention.

Claims

A household electric oven includes a heating element (2), a control device (3) connected to the heating element (2), and a baking tray (4), characterized in that it further includes a box body (1), A grill (5) for fixing the baking tray (4), the box (1) includes an outer shell (11) with an opening (15), and an inner box (12) with a heating cavity (14) formed on the inner wall, The inner box (12) is fixed in the outer casing (11) and forms a thermal insulation cavity (13) between the inner wall of the outer casing (11), the inner box (12) has the opening (15) A matching interface (16) and connected to the housing (11) at the opening (15) through the interface (16), the grill (5) can pass through the opening (15) And the interface (16) are placed in the heating cavity (14), the control device (3) and the casing (11) are fixedly connected, and the heating element (2) is implemented by pre-buying the heating wire in the ceramic material Fired by high-temperature baking, the heating element (2) is fixed on the top wall of the heating cavity (14).
The household electric oven according to claim 1, characterized in that the heat insulation cavity (13) has an air inlet (131) and an air outlet (132), and the air inlet (131) and the air outlet (132) Located at the bottom and the top of the casing (11) respectively, a fan (6) for heat dissipation is provided in the heat insulation cavity (13) near the air inlet (131).
A household electric oven according to claim 1 or 2, characterized in that the grill (5) comprises a U-shaped bracket (51), an oil receiving plate (53), and an oil receiving pan (55) , A plurality of slots (52) are distributed on the inner walls of both sides of the bracket (51), and the baking pan (4), the oil receiving plate (53), and the oil receiving pan (55) can pass through the bracket (51) A front end opening is inserted into the bracket (51) along the slots (52) opposite to the two sides, the bottom end of the rear side of the bracket (51) has a downward protrusion (54), and the heating cavity (14) The bottom wall has a positioning groove (121) whose shape matches the protrusion (54), and the bracket (51) generates heat when the protrusion (54) falls into the positioning groove (121) Positioning in the cavity (14).
A household electric oven according to claim 1 or 2, characterized in that the control device (3) has a first temperature probe (7) and a monitoring station for monitoring the temperature of the heating element (2) A second temperature measuring probe (8) for the temperature of the food in the heating cavity (4), the first temperature measuring probe (7) is fixed on the heating element (2), and the second temperature measuring probe (8) ) Is provided outside the box (1).
A household electric oven according to claim 1 or 2, characterized in that: the heating cavity (14) is provided with a mesh partition (142), and the mesh partition (142) The heating cavity (14) is divided into an upper heating area (143) and a lower grilling area (144), the heating element (2) is located in the heating area (143), and the grill (5) is accommodated In the grilling area (144).
A household electric oven according to claim 3, characterized in that the control device (3) has a first temperature probe (7) for monitoring the temperature of the heating element (2) and monitoring the heating A second temperature measuring probe (8) for the temperature of the food in the cavity (14), the first temperature measuring probe (7) is fixed on the heating element (2), and the second temperature measuring probe (8) is provided Outside the box (1).
A household electric oven according to claim 3, characterized in that: a mesh partition (142) is provided in the heating cavity (14), and the mesh partition (142) heats the heat The cavity (14) is divided into an upper heating area (143) and a lower grilling area (144), the heating element (2) is located in the heating area (143), and the grill (5) can be accommodated in The grilling area (144).
A household electric oven according to claim 4, characterized in that: the heating cavity (14) is provided with a mesh partition (142), and the mesh partition (142) connects the heating cavity (14) Divided into an upper heating area (143) and a lower grilling area (144), the heating element (2) is located in the heating area (143), and the grill (5) can be accommodated in Describe the grilling area (144).
A household electric oven according to claim 5, characterized in that the control device (3) has a first temperature probe (7) for monitoring the temperature of the heating element (2) and monitoring the heating A second temperature measuring probe (8) for the food temperature in the cavity (4), the first temperature measuring probe (7) is fixed on the heating element (2), and the second temperature measuring probe (8) is provided Outside the box (1).
A household electric oven according to claim 6, characterized in that: a mesh partition (142) is provided in the heating cavity (14), and the mesh partition (142) heats the heat The cavity (14) is divided into an upper heating area (143) and a lower grilling area (144), the heating element (2) is located in the heating area (143), and the grill (5) can be accommodated in The grilling area (144).