Hot blast stove with good heat insulation effect

Abstract

The utility model provides a hot blast stove with a good heat insulation effect, which comprises an outer shell, a control panel arranged on the top of the front side of the outer shell, a downward turning type box door arranged on the front side of the outer shell and below the control panel, an inner box body arranged in the outer shell, a top electric heating tube arranged on the top of the inner box body, and a top electric heating tube arranged on the bottom of the inner box body. A bottom electric heating pipe is installed at the bottom of the inner box body, a heat insulation cover is installed on the outer side of the inner box body, a circulating air back plate is installed on the back of the inner box body, a back sealing plate is installed behind the circulating air back plate, a circulating fan is installed on the back sealing plate, and a back electric heating pipe is installed on the outer side of an impeller of the circulating fan. The heat insulation cover is arranged between the inner box body and the outer shell body, and the design of the heat dissipation structure of the hot blast stove is combined, so that the heat of the inner box body can be prevented from overflowing, the heat efficiency is improved, and the influence of the overflowing heat on other electronic components arranged in the hot blast stove can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a hot air stove with good heat insulation effect. Background Art

[0002] A hot air stove, also known as a hot blast furnace, is a device that holds food in a closed space to heat and cook the food. Existing electric hot air stoves place food in a closed space without convection when using multiple heaters for cooking. Although this can maximize the guarantee that heat does not dissipate and improve heat utilization, it is difficult for existing hot air stoves to ensure uniform heat in the furnace, resulting in average baking effects. In addition, the thermal insulation effect of existing hot air stoves is average. During the actual baking process, the heat overflow from the inner box will cause the temperature of the outer shell of the hot air stove to be higher, which will not only cause heat overflow, but also affect the user experience. In addition, due to the heat overflow, the temperature between the inner box and the outer shell will increase, which will seriously affect the service life of other electronic components installed in the hot air stove, so it needs to be improved. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model proposes a hot air furnace with good thermal insulation effect, which can ensure uniform heat distribution in the inner box. By installing a heat insulation cover between the inner box and the outer box, and combining the design of the hot air furnace heat dissipation structure, it can avoid heat overflow from the inner box and improve thermal efficiency, and can reduce the impact of heat overflow on other electronic components installed in the hot air furnace.

[0004] To achieve the above technical solution, the utility model provides a hot air stove with good thermal insulation effect, comprising: an outer shell, a control panel is installed on the top of the front side of the outer shell, a flip-down box door is arranged on the front side of the outer shell below the control panel, an inner box is installed in the outer shell, a top electric heating pipe is installed on the top of the inner box, a bottom electric heating pipe is installed on the bottom of the inner box, a shelf is installed above the bottom electric heating pipe to shield the bottom electric heating pipe, a heat insulation cover composed of a left-wrapped insulation board and a right-wrapped insulation board is installed on the outside of the inner box, a circulating air back plate is installed on the back of the inner box, and folded edges are arranged on the left and right ends of the circulating air back plate, so that the left and right ends of the circulating air back plate are connected with the inner box to form a return air cavity, and the bottom of the circulating air back plate is provided with There are multiple circulating air inlet holes distributed side by side at intervals, the center of the circulating air back plate is provided with air distribution holes, and a back sealing plate is installed behind the circulating air back plate. A circulating air cavity is enclosed between the circulating air back plate, the back sealing plate and the inner box body, and the circulating fan is installed on the back sealing plate. The impeller at the front end of the circulating fan is located in the circulating air cavity and is directly opposite to the air distribution holes set on the circulating air back plate. A back electric heating pipe is installed on the outer side of the circulating fan impeller, and an air inlet pipe connected to the outer side of the outer shell is arranged on the back sealing plate. An electrical installation cavity is formed between the back sealing plate and the back plate of the outer shell, and a control circuit board and a voltage stabilizer are respectively installed on the back sealing plate through a heat insulation seat and are located in the electrical installation cavity. A cooling fan connected to the outer shell is installed in the electrical installation cavity, and a plurality of heat dissipation holes are arranged on the back plate of the outer shell.

[0005] In the above technical scheme, by installing a heat insulation cover composed of a left-coated heat insulation board and a right-coated heat insulation board on the outer side of the inner box, the heat overflow of the inner box can be greatly reduced, and the temperature of the space between the outer box and the inner box is also reduced, which has a better heat insulation protection effect on the control circuit board, voltage stabilizer and other electronic components installed in the electrical installation cavity, and the control panel installed on the top of the front side of the outer box, thereby extending the service life of the electronic components. At the same time, in conjunction with the cooling fan installed in the electrical installation cavity, the temperature in the electrical installation cavity can be further reduced. In actual operation, since a circulating air cavity is formed between the circulating air back plate and the back sealing plate, and the impeller of the circulating fan is installed in the circulating air cavity, an air intake pipe connected to the outside is provided on the back sealing plate, and a return air cavity is formed between the left and right ends of the circulating air back plate and the left and right end edges of the inner box through the provided folding edges, therefore, when the impeller of the circulating fan rotates, the external air will be sucked into the circulating air cavity through the air intake pipe, and then heated by the back electric heating tube, and the heated air will be evenly distributed through the air distribution holes on the front side of the impeller of the circulating fan through the impeller. At the same time, the top and bottom electric heating tubes also work to heat the air in the inner box and make the heat distribution in the top and bottom spaces of the inner box even. When the impeller rotates, part of the hot air in the inner box will be re-sucked into the circulating air cavity through the return air cavity at the left and right ends of the circulating air back plate and the circulating air inlet hole at the bottom through the circulating fan, and then evenly transported to the inner box through the air distribution holes, thereby realizing the circulation of hot air, improving the hot air efficiency and reducing energy consumption.

[0006] Preferably, a microwave heater is installed on the side wall of the inner box. In actual operation, the microwave heater can also be started as needed to perform microwave heating on the food placed in the inner box.

[0007] Preferably, the outer shell is enclosed by a frame, a left side panel, a top panel, a back panel, a right side panel and a bottom panel, and the left side, right side and top of the outer shell are separated from the inner box by a heat insulation cover, which can not only reduce the heat loss of the inner box, but also reduce the temperature of the outer shell.

[0008] Preferably, a shelf is provided in the inner box to facilitate the placement of food plates.

[0009] Preferably, a handle is provided on the oven door, and a transparent viewing window is installed in the middle of the oven door. The handle facilitates opening or closing of the oven door, and the transparent viewing window facilitates observation of the baking status of food in the inner box.

[0010] Preferably, a display screen and control buttons are installed on the control panel to better set the working parameters of the hot air furnace.

[0011] The utility model provides a hot air furnace with good heat insulation effect, which has the following beneficial effects: the hot air furnace with good heat insulation effect has a simple structure, can ensure uniform heat distribution in the inner box, and can avoid heat overflow from the inner box by installing a heat insulation cover between the inner box and the outer box, and combined with the design of the heat dissipation structure of the hot air furnace, and can improve the thermal efficiency, and can reduce the influence of heat overflow on other electronic components installed in the hot air furnace. By installing a heat insulation cover composed of a left-coated heat insulation board and a right-coated heat insulation board on the outer side of the inner box, the heat overflow from the inner box can be greatly reduced, and the temperature of the space between the outer box and the inner box can also be reduced. It has better heat insulation protection for electronic components such as control circuit boards and voltage stabilizers installed in the electrical installation cavity, and the control panel installed on the top of the front side of the outer box, and prolongs the service life of electronic components. At the same time, in conjunction with the heat dissipation fan installed in the electrical installation cavity, the temperature in the electrical installation cavity can be further reduced. In actual operation, a circulating air cavity is formed between the circulating air back plate and the back sealing plate, and the impeller of the circulating fan is installed in the circulating air cavity. An air inlet pipe connected to the outside is arranged on the back sealing plate, and a return air cavity is formed between the left and right ends of the circulating air back plate and the left and right end edges of the inner box body through the arranged folded edges. Therefore, when the impeller of the circulating fan rotates, the external air is sucked into the circulating air cavity through the air inlet pipe, and then heated by the back electric heating tube, and the heated air is evenly discharged through the air distribution holes on the front side of the impeller of the circulating fan. At the same time, the top and bottom electric heating tubes also work to heat the air in the inner box and make the heat distribution in the top and bottom spaces of the inner box even. When the impeller rotates, part of the hot air in the inner box will be re-sucked into the circulating air cavity through the return air cavity at the left and right ends of the circulating air back plate and the circulating air inlet hole at the bottom through the circulating fan, and then evenly transported to the inner box through the air distribution holes, thereby realizing the circulation of hot air, improving the hot air efficiency and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is an exploded front view of the three-dimensional structure of the utility model.

[0014] Figure 3 It is an exploded rear view of the three-dimensional structure of the utility model.

[0015] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the utility model.

[0016] Figure 5 It is an exploded rear view of the internal three-dimensional structure of the utility model.

[0017] Figure 6It is an exploded front view of the internal three-dimensional structure of the utility model.

[0018] Figure 7 It is a schematic diagram of the local structural assembly of the utility model.

[0019] In the figure: 1. outer shell; 101. frame; 102. left side panel; 103. right side panel; 104. back panel; 105. top panel; 106. bottom panel; 2. control panel; 3. button; 4. display screen; 5. door; 6. visual window; 7. handle; 8. left covered insulation board; 9. right covered insulation board; 10. cooling fan; 11. air inlet pipe; 12. back electric heating pipe; 13. back sealing plate; 14. voltage stabilizer; 15. circulation fan; 16. insulation seat; 17. control circuit board; 18. microwave heater; 19. inner box; 20. circulation air back panel; 21. top electric heating pipe; 22. shelf; 23. shelf board; 24. bottom electric heating pipe; 25. air distribution hole; 26. folded edge; 27. circulation air inlet hole. 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. All other embodiments obtained by ordinary personnel in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment: A hot air stove with good heat insulation effect.

[0022] Reference Figures 1 to 7 As shown, a hot air stove with good heat insulation effect includes: an outer shell 1, the outer shell 1 is surrounded by a frame 101, a left side plate 102, a right side plate 103, a back plate 104, a top plate 105 and a bottom plate 106, a control panel 2 is installed on the front top of the outer shell 1, a display screen 4 and a control button 3 are installed on the control panel 2, so as to better set the working parameters of the hot air stove, a downward flip-down door 5 is arranged on the front side of the outer shell 1 below the control panel 2, a handle 7 is arranged on the door 5, and a transparent visual window 6 is installed in the middle of the door 5, the handle 7 is arranged to facilitate the opening or closing of the door 5, and the transparent visual window 6 is arranged to facilitate the observation of the baking condition of the food in the inner box 19.

[0023] An inner box 19 is installed in the outer box 1, a top electric heating tube 21 is installed on the top of the inner box 19, a bottom electric heating tube 24 is installed on the bottom of the inner box 19, a shelf 23 is installed above the bottom electric heating tube 24 to shield the bottom electric heating tube 24, and the heating of the top electric heating tube 21 and the bottom electric heating tube 24 can make the heating temperature distribution in the inner box 19 more uniform.

[0024] The outer side of the inner box 19 is installed with a heat insulation cover composed of a left-wrapped heat insulation board 8 and a right-wrapped heat insulation board 9, and the left side, right side and top of the outer box 1 are separated from the inner box 19 by the heat insulation cover, which can not only reduce the heat loss of the inner box 19, but also reduce the temperature of the outer box 1 to prevent the user experience from being affected by the excessive temperature of the outer box 1. A shelf 22 is provided in the inner box 19 to facilitate the placement of food plates. A microwave heater 18 is installed on the side wall of the inner box 19. During actual operation, the microwave heater 18 can also be started as needed to perform microwave heating on the food placed in the inner box 19.

[0025] A circulating air back plate 20 is installed on the back of the inner box body 19, and folded edges 26 are provided on the left and right ends of the circulating air back plate 20, so that the left and right ends of the circulating air back plate 20 are connected with the inner box body 19 to form a return air cavity, and a plurality of circulating air inlet holes 27 distributed side by side and at intervals are provided at the bottom of the circulating air back plate 20. During actual operation, the circulation of hot air in the inner box body 19 can be achieved through the return air cavity and the circulating air inlet holes 27. An air distribution hole 25 is provided in the center of the circulating air back plate 20, and a back sealing plate 13 is installed behind the circulating air back plate 20. A circulating air cavity is enclosed between the circulating air back plate 20, the back sealing plate 13 and the inner box body 19, and the circulating fan 15 is installed on the back sealing plate 13. The impeller at the front end of the circulating fan 15 is located in the circulating air cavity and faces the circulating air back plate 13. An air distribution hole 25 is arranged on the plate 20, and a back electric heating pipe 12 is installed on the outer side of the impeller of the circulating fan 15. The back electric heating pipe 12 is used to heat the air in the circulating air cavity. An air inlet pipe 11 connected with the outer side of the outer shell 1 is arranged on the back sealing plate 13. The air inlet pipe 11 is used to provide fresh air for heating the circulating air cavity. An electrical installation cavity is formed between the back sealing plate 13 and the back plate 104 of the outer shell 1. The control circuit board 17 and the voltage stabilizer 14 are respectively installed on the back sealing plate 13 through the insulation seat 16 and are located in the electrical installation cavity. A cooling fan 10 connected with the outer shell 1 is installed in the electrical installation cavity. The cooling fan 10 is used to reduce the temperature in the electrical installation cavity. A plurality of cooling holes are arranged on the back plate 104 of the outer shell 1 to further enhance the heat dissipation in the electrical installation cavity.

[0026] The hot air furnace with good heat insulation effect has a simple structure and can ensure uniform heat distribution in the inner box 19. By installing a heat insulation cover between the inner box 19 and the outer box 1 and combining the design of the heat dissipation structure of the hot air furnace, it can not only avoid the heat overflow of the inner box 19 and improve the thermal efficiency, but also reduce the influence of heat overflow on other electronic components installed in the hot air furnace. By installing a heat insulation cover composed of a left-coated heat insulation board 8 and a right-coated heat insulation board 9 on the outer side of the inner box 19, the heat overflow of the inner box 19 can be greatly reduced, and the temperature of the space between the outer box 1 and the inner box 19 can also be reduced. It has a better heat insulation protection effect on the control circuit board 17, the voltage stabilizer 14 and other electronic components installed in the electrical installation cavity, and the control panel 2 installed on the top of the front side of the outer box 1, extending the service life of the electronic components. At the same time, in conjunction with the heat dissipation fan 10 installed in the electrical installation cavity, the temperature in the electrical installation cavity can be further reduced, and the overall heat dissipation effect of the hot air furnace can be enhanced. In actual operation, since a circulating air cavity is formed between the circulating air back plate 20 and the back sealing plate 13, and the impeller of the circulating fan 15 is installed in the circulating air cavity, an air inlet pipe 11 connected to the outside is arranged on the back sealing plate 13, and a return air cavity is formed between the left and right ends of the circulating air back plate 20 and the left and right ends of the inner box body 19 through the folded edges 26, when the impeller of the circulating fan 15 rotates, the external air is sucked into the circulating air cavity through the air inlet pipe 11, and then after being heated by the back electric heating tube 12, the heated air is blown out through the air distribution holes 2 on the front side of the impeller of the circulating fan 15. 5 is uniformly transported to the inner box 19 to ensure uniform air distribution. At the same time, the top electric heating pipe 21 and the bottom electric heating pipe 24 also work to heat the air in the inner box 19 and make the heat distribution in the top space and the bottom space in the inner box 19 uniform. When the impeller rotates, part of the hot air in the inner box 19 will be sucked back into the circulating air cavity through the circulating fan 15 through the return air cavity at the left and right ends of the circulating air back plate 20 and the circulating air inlet hole 27 at the bottom, and then uniformly transported to the inner box 19 again through the air distribution hole 25, so as to realize the circulation of hot air, improve the hot air efficiency and reduce energy consumption.

[0027] The above is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings, so any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A hot air stove with good heat insulation effect, comprising an outer shell, characterized in that: A control panel is installed on the top of the front side of the outer shell, and a flip-down box door is provided on the front side of the outer shell below the control panel. An inner box is installed in the outer shell, a top electric heating tube is installed on the top of the inner box, and a bottom electric heating tube is installed on the bottom of the inner box. A shelf is installed above the bottom electric heating tube to shield the bottom electric heating tube, and a heat insulation cover composed of a left-wrapped insulation board and a right-wrapped insulation board is installed on the outside of the inner box. A circulating air back plate is installed on the back of the inner box, and folded edges are provided on the left and right ends of the circulating air back plate, so that the left and right ends of the circulating air back plate are connected with the inner box to form a return air cavity, and a plurality of circulating air inlet holes distributed side by side and at intervals are provided on the bottom of the circulating air back plate. An air distribution hole is arranged at the center of the circulating air back plate, and a back sealing plate is installed at the rear of the circulating air back plate. A circulating air cavity is formed between the circulating air back plate, the back sealing plate and the inner box body, and the circulating fan is installed on the back sealing plate. The impeller at the front end of the circulating fan is located in the circulating air cavity and is directly opposite to the air distribution hole arranged on the circulating air back plate. A back electric heating pipe is installed on the outer side of the circulating fan impeller, and an air inlet pipe connected with the outer side of the outer shell is arranged on the back sealing plate. An electrical installation cavity is formed between the back sealing plate and the back plate of the outer shell, and the control circuit board and the voltage stabilizer are respectively installed on the back sealing plate through the heat insulation seat and are located in the electrical installation cavity. A cooling fan connected with the outer shell is installed in the electrical installation cavity, and a plurality of heat dissipation holes are arranged on the back plate of the outer shell.

2. The hot air stove with good heat insulation effect as claimed in claim 1, characterized in that: A microwave heater is installed on the side wall of the inner box.

3. The hot air stove with good heat insulation effect as claimed in claim 1, characterized in that: The outer shell is enclosed by a frame, a left side plate, a top plate, a back plate, a right side plate and a bottom plate, and the left side, right side and top of the outer shell are separated from the inner box by a heat insulation cover.

4. The hot air stove with good heat insulation effect as claimed in claim 1, characterized in that: A shelf is arranged in the inner box.

5. The hot air stove with good heat insulation effect as claimed in claim 1, characterized in that: The box door is provided with a handle, and a transparent viewing window is installed in the middle of the box door.

6. The hot air stove with good heat insulation effect as claimed in claim 1, characterized in that: A display screen and control buttons are installed on the control panel.

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