Double-heating digital display circulating hot blast stove

Abstract

The utility model provides a double-heating digital display circulating hot blast stove which comprises an outer shell, an inner box body is installed in the outer shell, the bottom of the inner box body and the outer shell are suspended through inner supporting legs, a circulating air back plate is installed in the inner box body, a back sealing plate is installed on the rear side of the circulating air back plate, and a circulating air cavity is formed between the circulating air back plate and the back sealing plate. A fan mounting base is mounted on the rear side of the back sealing plate, a first circulating fan and a second circulating fan which are arranged in parallel at an interval are mounted on the fan mounting base in the longitudinal direction, air distribution holes are formed right in front of the circulating fans, and a plurality of circulating air holes are formed in the positions, located on the periphery of the air distribution holes, of the circulating air back plate. The double-heating digital display circulating hot-blast stove is simple in structure, the heat efficiency of circulating air is improved through the design of a hot air circulating structure, air distribution can be uniform and the heat efficiency is improved through the design of a double-machine hot air circulating structure, and the hot-blast stove has a good heat dissipation effect through the design of a heat dissipation structure.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a double-heating digital display circulating hot air stove. Background Art

[0002] An oven is a device that houses food in a closed space and heats and cooks the food. During cooking using multiple heaters in existing electric ovens, the food is placed in a closed and non-convective space. Although this can maximize the prevention of heat dissipation and improve heat utilization efficiency. To further improve heat utilization efficiency, hot air stoves with circulating air have been developed in the market. For example, a Chinese patent with the publication number CN208740745U discloses an oven with a hot air circulation device, which includes an oven and its inner box body. A hot air circulation component is arranged at the top of the inner box body. The hot air circulation component is provided with at least a motor that rotates in one direction, or motors with different rotation directions; the hot air circulation component includes a fan blade, a convection cover, a motor, and a heat dissipation air duct; the convection cover and the heat dissipation air duct are arranged at the top of the inner box body, and the heat dissipation air duct is arranged on one side of the convection cover; the shaft end of the motor is connected to the fan blade, and the motor is installed on the top of the convection cover; the fan blade is located inside the convection cover. By arranging the hot air circulation component at the top of the inner box body of the oven, the components inside the oven have a good heat dissipation effect, and the hot air circulation effect inside the oven is better and faster, making the food inside the oven heated evenly and the food taste better, effectively improving the use performance of the oven. However, the hot air circulation structure of this oven is designed very complexly, and the thermal efficiency of the circulating air is low. In addition, for an oven with such a structural design, it is relatively difficult for the oven itself to dissipate heat. After using for a period of time, the outer shell of the oven is prone to getting hot, and in serious cases, it may scald the user. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a double-heating digital display circulating hot air stove, which simplifies the hot air circulation structure, has a high thermal efficiency of the circulating air, and has a good heat dissipation effect.

[0004] To achieve the above technical solutions, the present utility model provides a double-heating digital display circulating hot air stove, comprising: an outer casing, a box door is provided on the front side of the outer casing, a digital display control panel is installed on one side of the outer casing where the box door is located, an inner box body is installed inside the outer casing, the bottom of the inner box body is suspended above the bottom plate of the outer casing through inner legs, heat dissipation holes are evenly formed in the bottom plate of the outer casing, an electrical installation cavity is reserved between the right side of the inner box body and the outer casing, a controller is installed in the electrical installation cavity, a heat dissipation fan is installed on the back of the outer casing where the electrical installation cavity is located, a circulating air back plate is installed inside the inner box body, inwardly protruding flanges are provided at both the left and right ends of the circulating air back plate, so that a return air cavity is formed between the circulating air back plate and the left and right end edges of the inner box body, a back sealing plate is installed behind the circulating air back plate, a circulating air cavity is formed between the circulating air back plate and the back sealing plate, a fan mounting seat is installed on the back of the back sealing plate, two first circulating fans and second circulating fans arranged in parallel at intervals longitudinally are installed on the fan mounting seat, and the two impellers on the first circulating fan and the second circulating fan are respectively located in the circulating air cavity formed between the circulating air back plate and the back sealing plate, a first annular electric heating tube is installed outside the impeller of the first circulating fan, a second annular electric heating tube is installed outside the impeller of the second circulating fan, air distribution holes are correspondingly provided in front of the impellers of the first circulating fan and the second circulating fan on the circulating air back plate, a plurality of circulating air holes are provided around the air distribution holes on the circulating air back plate, an air inlet connecting pipe is provided on the back sealing plate, and the air inlet connecting pipe is communicated with an air inlet pipe extending outside the outer casing.

[0005] In the above technical solution, during actual operation, since a circulating air cavity is formed between the circulating air back plate and the back sealing plate, and the impellers of the first circulating air fan and the second circulating air fan are both installed in the space of the circulating air cavity, and an air inlet connecting pipe communicating with the outside is provided on the back sealing plate. Therefore, when the first circulating air fan and the second circulating air fan are operating, external air will be sucked into the circulating air cavity through the air inlet connecting pipe, and then after being heated by the first annular electric heating pipe and the second annular electric heating pipe, the heated air will be evenly delivered into the inner box body through the air distribution holes on the front side of the impeller, ensuring uniform air distribution. At the same time, when the impeller rotates, part of the hot air in the inner box body will be re-sucked into the circulating air cavity through a plurality of circulating air holes on the circulating air back plate around the air distribution holes and the return air cavity formed between the circulating air back plate and the left and right end edges of the inner box body, and after being reheated by the first annular electric heating pipe and the second annular electric heating pipe, it will be evenly delivered into the inner box body again through the air distribution holes, thereby realizing the circulation of hot air, simplifying the hot air circulation structure, improving the thermal efficiency of the circulating air, and reducing energy consumption. In addition, by using the inner legs to lift the bottom of the inner box body off the outer shell, it is beneficial to the circulation of the air at the bottom of the hot blast stove and conducive to the heat dissipation at the bottom of the hot blast stove. By installing a cooling fan on the back of the outer shell at the electrical installation cavity, it is beneficial to the heat dissipation of the controller and other electronic components installed in the electrical installation cavity, avoiding damage to the controller and other electronic components due to excessive temperature in the electrical installation cavity.

[0006] Preferably, the outer shell is enclosed by a frame body, a top plate, a back plate, a left side plate, a right side plate and a bottom plate. The back plate is provided with a heat dissipation grille and heat dissipation holes, and a fan heat dissipation grille is installed on the back of the back plate at the rear side of the cooling fan to further enhance the heat dissipation effect of this hot blast stove.

[0007] Preferably, two microwave heaters are installed on the side wall of the inner box body at intervals side by side up and down. During actual operation, the microwave heaters can also be started as needed to perform microwave heating on the food placed in the inner box body.

[0008] Preferably, a temperature sensor is installed on the side wall of the inner box body. The temperature sensor, microwave heaters, cooling fan, first circulating air fan, second circulating air fan, first annular electric heating pipe and second annular electric heating pipe are all electrically connected to the controller. During actual operation, various working parameters can be controlled through the digital display control panel via the controller.

[0009] Preferably, a shelf is arranged in the inner box body to facilitate the placement of food trays.

[0010] Preferably, a handle is provided on the box door, and a transparent viewing window is installed in the middle of the box door. By providing the handle, it is convenient to open or close the box door, and by providing the transparent viewing window, it is convenient to observe the baking situation of the food in the inner box body.

[0011] The beneficial effects of a dual-heating digital display circulating hot blast stove provided by the present utility model are as follows: The structure of this dual-heating digital display circulating hot blast stove is simple. Through the design of the hot air circulation structure, the thermal efficiency of the circulating air is improved. The structure design of dual-machine hot air circulation can make the air distribution uniform, improve the thermal efficiency, and have a good heat dissipation effect. During actual operation, since a circulating air cavity is formed between the circulating air back plate and the back sealing plate, and the impellers of the first circulating fan and the second circulating fan are both installed in the space of the circulating air cavity, and an air inlet connecting pipe communicating with the outside is provided on the back sealing plate. Therefore, when the first circulating fan and the second circulating fan are operating, the external air will be sucked into the circulating air cavity through the air inlet connecting pipe, and then after being heated by the first annular electric heating tube and the second annular electric heating tube, the heated air will be evenly transported into the inner box body through the air distribution holes on the front side of the impeller, ensuring uniform air distribution. At the same time, when the impeller rotates, part of the hot air in the inner box body will be re-sucked into the circulating air cavity through a plurality of circulating air holes on the periphery of the air distribution holes on the circulating air back plate and the return air cavity formed between the circulating air back plate and the left and right end edges of the inner box body, and after being reheated by the first annular electric heating tube and the second annular electric heating tube, it will be evenly transported into the inner box body again through the air distribution holes, thereby realizing the circulation of hot air, simplifying the hot air circulation structure, improving the thermal efficiency of the circulating air, and reducing energy consumption. In addition, by using the inner support legs to lift the bottom of the inner box body from the outer shell, it is beneficial to the circulation of the air at the bottom of the hot blast stove and conducive to the heat dissipation at the bottom of the hot blast stove. By installing a cooling fan on the back of the electrical installation cavity on the outer shell, it is beneficial to the heat dissipation of the controller and other electronic components installed in the electrical installation cavity, avoiding damage to the controller and other electronic components due to excessive temperature in the electrical installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the three-dimensional structure of the present utility model.

[0013] Figure 2 It is the rear view of the three-dimensional structure of the present utility model.

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

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

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

[0017] Figure 6 It is the exploded view of the partial structure of the present utility model.

[0018] In the figure: 1. Outer casing; 101. Frame; 102. Top plate; 103. Rear plate; 1031. Heat dissipation grille; 1032. Heat dissipation holes; 1033. Fan heat exhaust grille; 104. Left side plate; 105. Right side plate; 106. Bottom plate; 2. Cabinet door; 3. Transparent viewing window; 4. Handle; 5. Digital display control panel; 6. Air inlet pipe; 7. Inner box body; 8. Air inlet connecting pipe; 9. Inner support leg; 10. Heat dissipation fan; 11. Rear sealing plate; 12. Fan mounting seat; 13. First circulation fan; 14. First annular electric heating pipe; 15. Second circulation fan; 16. Second annular electric heating pipe; 17. Controller; 18. Temperature sensor; 19. Microwave heater; 20. Circulating air back plate; 201. Air distribution holes; 202. Circulating air holes; 203. Flanging; 21. Shelf. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment: A double-heating digital display circulating hot air stove.

[0021] Referring to Figures 1 to 6 As shown, a double-heating digital display circulating hot air stove includes: an outer casing 1, which is enclosed by a frame 101, a top plate 102, a rear plate 103, a left side plate 104, a right side plate 105 and a bottom plate 106. The rear plate 103 is provided with a heat dissipation grille 1031 and heat dissipation holes 1032. A fan heat exhaust grille 1033 is installed on the rear plate 103 behind the heat dissipation fan 10 to enhance the overall heat dissipation effect of the hot air stove. A cabinet door 2 is provided on the front side of the outer casing 1. A handle 4 is provided on the cabinet door 2, and a transparent viewing window 3 is installed in the middle of the cabinet door 2. By setting the handle 4, it is convenient to open or close the cabinet door 2. By setting the transparent viewing window 3, it is convenient to observe the baking situation of the food in the inner box body 7. A digital display control panel 5 is installed on the outer casing 1 on one side of the cabinet door 2. During actual operation, various working parameters can be controlled through the digital display control panel 5.

[0022] An inner box body 7 is installed in the outer casing 1. A shelf 21 is provided in the inner box body 7 to facilitate the placement of food trays. The bottom of the inner box body 7 is suspended from the bottom plate 106 of the outer casing 1 through inner support legs 9. Heat dissipation holes are evenly opened on the bottom plate 106 of the outer casing 1. By using the inner support legs 9 to suspend the bottom of the inner box body 7 from the outer casing 1, it is beneficial to the air circulation at the bottom of the hot air stove and conducive to the heat dissipation at the bottom of the hot air stove.

[0023] A wiring installation cavity is reserved between the right side of the inner box body 7 and the outer box body 1. The controller 17 is installed in the wiring installation cavity. A cooling fan 10 is installed on the back of the outer box body 1 at the position of the wiring installation cavity. By installing the cooling fan 10 on the back of the outer box body 1 at the position of the wiring installation cavity, it is beneficial to dissipate heat from the controller 17 and other electronic components installed in the wiring installation cavity, and avoid damage to the controller 17 and other electronic components caused by excessive temperature in the wiring installation cavity.

[0024] A circulation air backplate 20 is installed inside the inner box body 7. At both the left and right ends of the circulation air backplate 20, there are inwardly protruding flanges 203, so that a return air cavity is formed between the circulation air backplate 20 and the left and right end edges of the inner box body 7. The function of the return air cavity is to provide a circulation inlet for the hot air inside the inner box body 7. A back seal plate 11 is installed behind the circulation air backplate 20. A circulation air cavity is formed between the circulation air backplate 20 and the back seal plate 11. On the back of the back seal plate 11, a fan mounting seat 12 is installed. Along the longitudinal direction on the fan mounting seat 12, two first circulation fans 13 and second circulation fans 15 are installed in parallel at intervals. And the two impellers on the first circulation fan 13 and the second circulation fan 15 are respectively located in the circulation air cavity formed between the circulation air backplate 20 and the back seal plate 11. An first annular electric heating tube 14 is installed outside the impeller of the first circulation fan 13. A second annular electric heating tube 16 is installed outside the impeller of the second circulation fan 15. Air distribution holes 201 are correspondingly arranged in front of the impellers of the first circulation fan 13 and the second circulation fan 15 on the circulation air backplate 20. A plurality of circulation air holes 202 are arranged around the air distribution holes 201 on the circulation air backplate 20. An air inlet connecting pipe 8 is arranged on the back seal plate 11. The air inlet connecting pipe 8 is communicated with an air inlet pipe 6 extending outside the outer shell body 1. During actual operation, since a circulation air cavity is formed between the circulation air backplate 20 and the back seal plate 11, and the impellers of the first circulation fan 13 and the second circulation fan 15 are installed in the space of the circulation air cavity, and the back seal plate 11 is provided with an externally communicated air inlet connecting pipe 8. Therefore, when the first circulation fan 13 and the second circulation fan 15 are operating, the external air will be sucked into the circulation air cavity through the air inlet connecting pipe 8, and then after being heated by the first annular electric heating tube 14 and the second annular electric heating tube 16, the heated air will be evenly conveyed into the inner box body 7 through the air distribution holes 201 in front of the impellers, ensuring uniform air distribution. At the same time, when the impellers rotate, part of the hot air inside the inner box body 7 will be re-sucked into the circulation air cavity through the plurality of circulation air holes 202 around the air distribution holes 201 on the circulation air backplate 20 and the return air cavity formed between the circulation air backplate 20 and the left and right end edges of the inner box body 7. After being reheated by the first annular electric heating tube 14 and the second annular electric heating tube 16 again, it is evenly conveyed into the inner box body 7 through the air distribution holes 201 again, thereby realizing the circulation of the hot air, simplifying the hot air circulation structure, improving the thermal efficiency of the circulation air, and reducing energy consumption.

[0025] Two microwave heaters 19 are installed on the side wall of the inner box body 7 at an interval side by side from top to bottom. During actual operation, the microwave heaters 19 can also be started as needed to perform microwave heating on the food placed in the inner box body 7. A temperature sensor 18 is installed on the side wall of the inner box body 7. The temperature sensor 18, microwave heaters 19, cooling fan 10, first circulation fan 13, second circulation fan 15, first ring-shaped electric heating tube 14, and second ring-shaped electric heating tube 16 are all electrically connected to the controller 17. During actual operation, each working parameter can be controlled through the digital display control panel 5 via the controller 17.

[0026] The structure of this double-heating digital display circulating hot air furnace is simple. Through the design of the hot air circulation structure, the thermal efficiency of the circulating air is improved. The structure design of the double-machine hot air circulation can make the air distribution uniform and improve the thermal efficiency. Moreover, through the design of the heat dissipation structure, this hot air furnace has a good heat dissipation effect.

[0027] The above are the preferred embodiments of the present invention, but the present invention should not be limited to the content disclosed in this embodiment and the drawings. Therefore, all equivalent or modified implementations completed without departing from the spirit disclosed by the present invention fall within the protection scope of the present invention.

Claims

1. A double heating digital display circulating hot air furnace, characterized in that include: An outer shell, a box door is arranged on the front side of the outer shell, a digital display control panel is installed on one side of the box door on the outer shell, an inner shell is installed in the outer shell, the bottom of the inner shell and the bottom plate of the outer shell are suspended by inner legs, and heat dissipation holes are evenly arranged on the bottom plate of the outer shell, an electrical installation cavity is reserved between the right side of the inner shell and the outer shell, a controller is installed in the electrical installation cavity, a cooling fan is installed on the outer shell at the back side of the electrical installation cavity, a circulating air back plate is installed in the inner shell, and the left and right ends of the circulating air back plate are both provided with inwardly protruding warped edges, so that a return air cavity is formed between the circulating air back plate and the left and right end edges of the inner shell, and a back sealing plate is installed on the rear side of the circulating air back plate, and a circulating air back plate and the back sealing plate form a An annular air cavity, a fan mounting seat is installed on the back side of the back sealing plate, and two first circulation fans and second circulation fans arranged in parallel and spaced apart are installed on the fan mounting seat in the longitudinal direction, and the two impellers on the first circulation fan and the second circulation fan are respectively located in the circulating air cavity formed between the circulating air back plate and the back sealing plate, a first annular electric heating pipe is installed on the outer side of the impeller of the first circulation fan, and a second annular electric heating pipe is installed on the outer side of the impeller of the second circulation fan, and air distribution holes are correspondingly arranged on the circulating air back plate directly in front of the impellers of the first circulation fan and the second circulation fan, and a plurality of circulating air holes are arranged on the circulating air back plate around the air distribution holes, and an air intake connecting pipe is arranged on the back sealing plate, and the air intake connecting pipe is connected with the air intake pipe extending to the outside of the outer shell.

2. The double-heating digital display circulating hot air stove according to claim 1, characterized in that: The outer shell is enclosed by a frame, a top plate, a back plate, a left plate, a right plate and a bottom plate. A heat dissipation grille and heat dissipation holes are provided on the back plate. A fan heat exhaust grille is installed on the back side of the heat dissipation fan.

3. The double-heating digital display circulating hot air stove according to claim 1, characterized in that: Two microwave heaters are installed on the side wall of the inner box body and are arranged side by side in an interval.

4. The double-heating digital display circulating hot air stove as claimed in claim 3, characterized in that: A temperature sensor is installed on the side wall of the inner box, and the temperature sensor, the microwave heater, the cooling fan, the first circulation fan, the second circulation fan, the first annular electric heating tube, and the second annular electric heating tube are all electrically connected to the controller.

5. The double-heating digital display circulating hot air stove according to claim 1, characterized in that: A shelf is arranged in the inner box.

6. The double-heating digital display circulating hot air stove according to 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.

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