Circulation type oven

Abstract

The utility model discloses a circulation type oven which comprises an oven body, an inner container is arranged in the oven body, and an upper heater is fixedly installed on the top of the inner side of the inner container. According to the utility model, the air guide triangular frame, the hot-air blower, the filter screen, the air guide pipe, the comb tooth pipe, the heat-conducting fin, the slope surface and the stop block are adopted to form a circulation heat-conducting mechanism for hot air of the oven, and the hot air at a set temperature is guided into the air guide pipe by starting the hot-air blower, so that the hot air is blown out from the branch pipes of the comb tooth pipe; the heat conduction pieces arranged on the surfaces of the branch pipes of the comb-tooth pipes can conduct heat of the inner container to the interiors of the comb-tooth pipes so as to eliminate the difference between the heating temperature of the hot air and the heating temperature of the inner container, at the moment, the slope faces and the check blocks of the air guide triangular frames arranged at the four corners of the inner container serve as air guide structures, and the hot air flows in the inner container in a circulating mode. And heat of the lower heater and the upper heater is brought into the hot air in the hot air flowing stage, so that the purpose of uniformly heating the food is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ovens, in particular to a circulating oven. Background Art

[0002] An oven is a sealed appliance used to bake food or dry products. It is divided into household appliances and industrial ovens. Household ovens can be used to process some pasta. Industrial ovens are equipment used to dry products in industry. There are electric and gas ovens, also known as ovens, drying boxes, etc. Among them, household electric ovens are electric heating appliances that use the radiant heat emitted by electric heating elements to bake food. We can use them to make roast chicken, roast duck, bake bread, cakes, etc.

[0003] Chinese Patent 202120392196.9, a steam oven temperature-averaging fan installation structure, characterized in that: it includes a fan installed on one side of the inner tank of the box body, the fan blades are arranged in the inner groove of the inner tank, the groove is covered with a fan cover, and the fan cover is provided with a number of ventilation holes of different shapes; a ring-shaped electric heating pipe is also arranged in the fan cover, and the electric heating pipe is arranged around the fan blade; the fan motor bracket is arranged on the outside of the inner tank, and a silicone sealing ring is also arranged between the motor bracket and the inner tank, the diameter of the silicone sealing ring is greater than the diameter of the central axis of the motor bracket, and the thickness of the silicone sealing ring is greater than the distance from the central axis to the outer side of the inner tank. However, since the hot air or steam in this scheme flows in one direction, the food in the inner tank is heated unevenly.

[0004] To this end, a convection oven is proposed, which has the advantage of uniform heating and solves the problems in the above-mentioned background technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a convection oven.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a circulation oven, comprising an oven body, an inner tank is arranged inside the oven body, and an upper heater is fixedly installed on the inner top of the inner tank, a lower heater is fixedly installed on the inner bottom of the inner tank, and a grid plate is fixedly connected to the upper part of the lower heater, air guide triangular frames are welded at the four corners of the inner tank, and a slope is arranged on the air guide triangular frame, and two blocks are welded at the edge of the air guide triangular frame corresponding to the slope, an installation cavity is opened on the right side of the oven body, and a hot air blower is fixed in the installation cavity, an air guide duct is connected at the air outlet of the hot air blower, and one end of the air guide duct extends into the inner tank and is connected to a comb-tooth pipe, surfaces of several branch pipes of the comb-tooth pipe are fixedly connected with heat conducting plates, and ports of several branch pipes of the comb-tooth pipe face the slope of the air guide triangular frame, a box cover is hingedly connected to the front end surface of the oven body corresponding to the inner tank, and tempered glass is embedded and installed on the surface of the box cover.

[0007] As a further description of the above technical solution: a vent is provided through the installation cavity at the lower right side of the oven body, and a filter is embedded in the vent.

[0008] As a further description of the above technical solution: the side of the comb-tooth tube facing away from the heat conducting plate is welded to the inner wall of the inner tank.

[0009] As a further description of the above technical solution: the lower heater and the upper heater have the same size, and the lower heater is located directly below the upper heater.

[0010] As a further description of the above technical solution: the grid plate is composed of a plurality of transverse rib plates and a plurality of vertical rib plates, and a plurality of rectangular openings are formed between the plurality of transverse rib plates and the plurality of vertical rib plates.

[0011] As a further description of the above technical solution: a key panel is embedded and installed at the edge of the front end surface of the oven body, and the output end of the key panel is electrically connected to the lower heater, the upper heater and the hot air blower respectively.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, an air guide triangle frame, a hot air blower, a filter, an air guide pipe, a comb-tooth pipe, a heat transfer sheet, a slope and a block are adopted to form a circulating heat transfer mechanism for hot air of an oven. By starting the hot air blower, hot air with a set temperature is introduced into the air guide pipe, so that the hot air is blown out from a plurality of branch pipes of the comb-tooth pipe. The heat transfer sheet arranged on the surface of the branch pipes of the comb-tooth pipe can transfer the heat of the inner pot to the inside of the comb-tooth pipe to eliminate the temperature difference between the hot air and the heating temperature of the inner pot. At this time, the air guide triangle frame arranged at the four corners of the inner pot uses its slope and the block as an air guide structure, so that the hot air flows in a circulating manner in the inner pot, and the heat at the lower heater and the upper heater is replaced in the hot air flow stage, so as to achieve the purpose of uniform heating of food. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of a convection oven of the utility model;

[0015] Figure 2 This is a schematic diagram of the external structure of a convection oven of the utility model;

[0016] Figure 3 This is a schematic diagram of the comb tube structure of a circulating oven of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the air guide triangle frame structure of a circulating oven.

[0018] Legend:

[0019] 1. Oven body; 2. Inner pot; 3. Grid plate; 4. Lower heater; 5. Upper heater; 6. Air guide triangle frame; 7. Installation cavity; 8. Hot air blower; 9. Filter; 10. Air guide duct; 11. Comb tube; 12. Button panel; 13. Box cover; 14. Tempered glass; 15. Heat conduction sheet; 16. Slope; 17. Block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] According to an embodiment of the utility model, a convection oven is provided.

[0022] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3 As shown, a circulation oven according to an embodiment of the utility model comprises an oven body 1, an inner tank 2 is arranged inside the oven body 1, and an upper heater 5 is fixedly installed on the inner top of the inner tank 2, a lower heater 4 is fixedly installed on the inner bottom of the inner tank 2, and a grid plate 3 is fixedly connected to the upper part of the lower heater 4, four corners of the inner tank 2 are welded with air guide triangular frames 6, and a slope 16 is arranged on the air guide triangular frame 6, and two blocks 17 are welded at the edge of the air guide triangular frame 6 corresponding to the slope 16, an installation cavity 7 is opened on the right side of the oven body 1, and a hot air blower 8 is fixed in the installation cavity 7, an air outlet of the hot air blower 8 is connected with an air guide pipe 10, and one end of the air guide pipe 10 extends into the inner tank 2 to be connected with a comb tooth pipe 11, and the surfaces of several branch pipes of the comb tooth pipe 11 are fixed with heat conducting sheets 1 5, and the ports of several branch pipes of the comb-tooth tube 11 are all facing the slope 16 of the air guide triangle frame 6, the front end surface of the oven body 1 is hinged with a box cover 13 corresponding to the inner tank 2, and the surface of the box cover 13 is embedded with a tempered glass 14, wherein the air guide triangle frame 6 is specifically a right triangle, and the two vertical surfaces of the air guide triangle frame 6 are connected to the inner wall of the inner tank 2. In order to ensure the hot air circulation effect, the path of the hot air circulation passes through the heating area of ​​the lower heater 4 and the upper heater 5. The parts not involved in the oven body 1 are the same as the prior art or can be implemented by the prior art. The control method of the utility model is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of the power supply belong to the common knowledge in the field, so the utility model will not explain the control method and wiring arrangement in detail;

[0023] In one embodiment, a vent is provided through the installation cavity 7 at the lower right side of the oven body 1, and a filter 9 is embedded in the vent. The filter 9 can filter the air sucked in by the hot air blower 8 to reduce the contamination of food by impurities in the air.

[0024] In one embodiment, the side of the comb-tooth tube 11 facing away from the heat conducting plate 15 is welded to the inner wall of the inner tank 2. By setting the comb-tooth tube 11, the hot air can be diverted and the coverage of the hot air circulation can be increased.

[0025] In one embodiment, the lower heater 4 and the upper heater 5 have the same size, and the lower heater 4 is located directly below the upper heater 5. The lower heater 4 and the upper heater 5 are beneficial for heating both sides of the food, thereby increasing the heating effect.

[0026] In one embodiment, the grid plate 3 is composed of a plurality of transverse ribs and a plurality of vertical ribs, and a plurality of rectangular openings are formed between the plurality of transverse ribs and the plurality of vertical ribs, wherein the size of the rectangular openings is large enough so as not to interfere with the hot air circulation.

[0027] In one embodiment, a key panel 12 is embedded and installed at the edge of the front end surface of the oven body 1, and the output ends of the key panel 12 are electrically connected to the lower heater 4, the upper heater 5, and the hot air blower 8 respectively. The electrical connection between the key panel 12 and the lower heater 4, the upper heater 5, and the hot air blower 8 is a well-known prior art and will not be elaborated on.

[0028] Working principle:

[0029] When in use, first set the heating temperature of the lower heater 4 and the upper heater 5 by the knob of the button panel 12. When baking food, start the hot air blower 8 to guide the hot air of the set temperature into the air guide pipe 10, so that the hot air is blown out from the multiple branch pipes of the comb-tooth pipe 11. The heat conducting sheet 15 arranged on the surface of the branch pipe of the comb-tooth pipe 11 can conduct the heat of the inner pot 2 to the inside of the comb-tooth pipe 11 to eliminate the difference in heating temperature between the hot air and the inner pot 2. At this time, the air guide triangle frame 6 arranged at the four corners of the inner pot 2 uses its slope 16 and the stopper 17 as the air guide structure. The hot air blown out by the comb-tooth pipe 11 blows toward the slope 16 of one of the air guide triangle frames 6, and blows toward the slope 16 of the other air guide triangle frame 6 under the guidance of the stopper 17, and so on, so that the hot air flows in a circulating manner in the inner pot 2, and replaces the heat at the lower heater 4 and the upper heater 5 in the hot air flow stage, so as to achieve the purpose of uniform heating of food.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A convection oven, comprising an oven body (1), characterized in that: The oven body (1) is provided with an inner container (2), and an upper heater (5) is fixedly installed on the inner top of the inner container (2), a lower heater (4) is fixedly installed on the inner bottom of the inner container (2), and a grid plate (3) is fixedly connected above the lower heater (4), four corners of the inner container (2) are welded with air guide triangular frames (6), and a slope (16) is provided on the air guide triangular frame (6), and two stoppers (17) are welded at the edge of the air guide triangular frame (6) corresponding to the slope (16), and an installation cavity (7) is opened on the right side of the oven body (1). ), and a hot air blower (8) is fixed in the installation cavity (7), the air outlet of the hot air blower (8) is connected to an air guide pipe (10), and one end of the air guide pipe (10) extends into the inner pot (2) to connect to the comb-tooth pipe (11), the surfaces of several branch pipes of the comb-tooth pipe (11) are fixedly connected with heat conducting plates (15), and the ports of several branch pipes of the comb-tooth pipe (11) are facing the slope (16) of the air guide triangle frame (6), the front end surface of the oven body (1) is hinged with a box cover (13) corresponding to the inner pot (2), and the surface of the box cover (13) is embedded with tempered glass (14).

2. A convection oven according to claim 1, characterized in that: A ventilation opening is provided at the lower right side of the oven body (1) through the installation cavity (7), and a filter screen (9) is embedded and installed in the ventilation opening.

3. A convection oven according to claim 1, characterized in that: The side of the comb-tooth tube (11) facing away from the heat-conducting plate (15) is welded to the inner wall of the inner container (2).

4. A convection oven according to claim 1, characterized in that: The lower heater (4) and the upper heater (5) have the same size, and the lower heater (4) is located directly below the upper heater (5).

5. A convection oven according to claim 1, characterized in that: The grid plate (3) is composed of a plurality of transverse rib plates and a plurality of vertical rib plates, and a plurality of rectangular openings are formed between the plurality of transverse rib plates and the plurality of vertical rib plates.

6. A convection oven according to claim 1, characterized in that: A key panel (12) is embedded and installed at the edge of the front end surface of the oven body (1), and the output end of the key panel (12) is electrically connected to the lower heater (4), the upper heater (5), and the hot air blower (8) respectively.

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