Hot air circulation heating fan and oven

Abstract

The invention relates to the technical field of energy-saving equipment, in particular to a hot air circulation heating fan and oven. The frame shell is fixedly connected outside the inner container; the motor x is fixedly connected to the frame shell; the fan blades are rotationally connected to the frame shell; the heating sheet is arranged in the central tube; the suction device is fixedly connected to the inner container; the mounting frame is fixedly connected in the central pipe; and the inclined plate is rotationally connected to the mounting frame. According to the invention, the sensing control device is used in the suction device in the circulating air flow to detect the coke smoke, and when the food is detected to be burnt, the operation form of the device can be switched, the heating of the air flow and the circulating of the air flow are stopped, and the air flow containing the coke smoke is discharged outwards, so that the abnormal energy consumption of the device is reduced, and the energy consumption is reduced. And the troublesome degree of cleaning work caused by coke smoke lamination is reduced, so that the use effect of the coke oven is improved.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving equipment, in particular to a hot air circulation heating fan and an oven. Background Art

[0002] An oven is an electrical appliance used for baking food. It is one of the commonly used electrical appliances in households. Ovens are generally divided into two types: air ovens and flat ovens. Air ovens use hot circulating air to bake food, making the baking temperature in the oven more uniform, while flat ovens directly use heat sources to bake food. There will be a certain temperature difference at different positions inside, which is suitable for foods with special baking requirements. The two have their own advantages and usage characteristics.

[0003] In the process of using a fan oven, inexperienced users often cause food to burn due to inaccurate control of temperature and time. Burnt food will produce burnt smoke and odor, making it difficult to clean the oven. In addition, burnt food will cause local temperature rise, resulting in uneven temperature in the oven, causing the oven to consume more energy to compensate for the temperature difference, resulting in increased energy consumption of the oven, which in turn affects the energy efficiency of the oven. Summary of the invention

[0004] The present invention aims at solving the technical defects mentioned in the above background technology and proposes a hot air circulation heating fan and an oven.

[0005] A hot air circulation heating fan, the technical solution includes: a central tube; a frame shell connected to the central tube; fan blades fixedly connected to a motor x on the frame shell, the fan blades being fixed to the output end of the motor x; a heating plate arranged in the central tube, the heating plate generates heat when energized, the heating plate is provided with a hole for airflow to pass through, and at least three heating plates are arranged; an extractor connected to the frame shell, the extractor sucks the airflow back into the frame shell.

[0006] More preferably, the hot air circulation heating fan also includes: the heating plate can form two states, one is to align the through openings to form a straight channel as a whole, and the other is to stagger the through openings to form a spiral channel as a whole, and the heating plate rotates to switch between the two states.

[0007] More preferably, the hot air circulation heating fan also includes: a fixed block fixedly connected to each heating plate; a stop block x fixedly connected to the inner wall of the central tube, each stop block x is distributed in a straight line; a stop block y fixedly connected to the inner wall of the central tube, each stop block y is distributed in a spiral line; a mounting ring rotatably connected to the outer wall of the central tube; a magnetic block fixedly connected to the mounting ring, the magnetic block can be magnetically attracted to the fixed block; a motor y fixedly connected to the frame shell; a gear fixedly connected to the output end of the motor y; a convex tooth fixedly connected to the mounting ring, the gear meshing with the convex tooth.

[0008] The present invention also provides an oven, comprising the hot air circulation heating fan as described above, and also comprising: a chassis, a control panel is arranged on the chassis, the control panel controls the start and stop of the heating plate and the motor x, a sensor control device is arranged in the aspirator, the sensor control device can sense the burnt smoke contained in the airflow it extracts, and feed back to the control panel; a door cover rotatably connected to the chassis; an inner tank fixedly connected to the chassis, a central tube fixedly connected to the inner tank, a frame shell fixedly connected to the outside of the inner tank, and an aspirator fixedly connected to the inner tank; branch pipes fixedly connected to the inner tank, the branch pipes are evenly arranged on the inner side walls of the inner tank, and the branch pipes are connected to the central tube.

[0009] More preferably, the oven further comprises: a connecting shell y fixedly connected to the chassis, the connecting shell y being in communication with the frame shell; a rotating plate x rotatably connected to the connecting shell y; and a torsion spring x fixedly connected between the rotating plate x and the connecting shell y.

[0010] More preferably, the oven further comprises: a connecting shell z fixedly connected to the inner pot, the connecting shell z being communicated with the outside; a rotating plate y rotatably connected to the connecting shell z; and a torsion spring y fixedly connected between the rotating plate y and the connecting shell z.

[0011] More preferably, the oven also includes: a fixed frame fixedly connected to the chassis; a filter element fixedly connected to the fixed frame for purifying coke smoke, the filter element being communicated with the central tube; a mounting frame fixedly connected inside the central tube; and an inclined plate rotatably connected to the mounting frame, the inclined plate rotating to control the opening and closing of the central tube.

[0012] More preferably, the oven further comprises: a torsion spring z fixedly connected between the inclined plate and the mounting frame; and an electromagnetic block fixedly connected to the central tube, wherein the electromagnetic block is controlled to start and stop by a control panel.

[0013] The beneficial effects of the present invention are as follows:

[0014] The present invention uses a heat circulation heating fan that can provide heat in a heat circulation manner, reduces energy consumption and achieves energy saving by circulating heat; the present invention uses a sensor control device in an aspirator in the circulating airflow to detect burnt smoke, and when it is detected that food is burnt, the operating mode of the present invention can be switched to stop the heating airflow and the circulating airflow, and the airflow containing the burnt smoke is discharged to the outside, so as to reduce the abnormal energy consumption of the present invention and reduce the trouble of cleaning work caused by the accumulation of burnt smoke, thereby improving the use effect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall appearance of the present invention.

[0016] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0017] Figure 3This is a schematic diagram of the internal structure of the present invention from another perspective.

[0018] Figure 4 It is a schematic diagram of the connection structure of the central tube, the fan blades and the aspirator in the present invention.

[0019] Figure 5 It is a schematic diagram of the connection structure of the fan blades and the heating plate in the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the heating plate in the present invention.

[0021] Figure 7 It is a schematic diagram of the connection structure between the fixed block and the electromagnetic block in the present invention.

[0022] Figure 8 It is a schematic diagram of the position structure of the stop block x and the stop block y in the present invention.

[0023] Fig. 9 This is a separation diagram of the connection structure between the connection shell z and the rotating plate y in the present invention.

[0024] Fig.10 It is a schematic diagram of the connection structure between the filter element and the inclined plate in the present invention.

[0025] Fig.11 It is a schematic diagram of the structure after the inclined plate in the present invention is unfolded.

[0026] The markings in the attached figure are: 1: chassis; 2: door cover; 3: liner; 4: interlayer plate; 5: central tube; 6: branch tube; 7: frame shell; 8: motor x; 9: fan blades; 10: heating plate; 1001: through-hole; 11: electric wire; 12: partition net; 13: suction device; 14: connecting shell x; 15: connecting tube; 16: connecting shell y; 17: rotating plate x; 18: torsion spring x; 19: fixed block; 20: resist block x; 21: resist block y; 22: mounting ring; 23: magnetic block; 24: motor y; 25: gear; 26: convex tooth; 27: connecting shell z; 28: rotating plate y; 29: torsion spring y; 30: fixed frame; 31: filter element; 32: mounting frame; 33: inclined plate; 34: torsion spring z; 35: electromagnetic block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment: A hot air circulation heating fan and oven, such as Figure 1-Figure 3As shown, it includes: a chassis 1, a control panel for operating the oven is provided at the front of the chassis 1; a door cover 2 rotatably installed at the front of the chassis 1; an inner pot 3 fixedly installed inside the chassis 1, and food will be placed in the inner pot 3 for baking; an interlayer board 4 slidably installed in the inner pot 3 for placing food, the interlayer board 4 is provided with two layers, the interlayer board 4 can divide the space in the inner pot 3, the interlayer board 4 can be freely removed, so that the space division in the inner pot 3 can be freely adjusted; a heat circulation heating fan is arranged between the chassis 1 and the inner pot 3, and the heat circulation heating fan supplies a circulating hot air flow into the inner pot 3, which makes the temperature uniform and saves the energy consumption of the oven.

[0029] like Figure 4-Figure 6 As shown, the heat circulation heating fan includes: a central tube 5 fixedly installed on the rear top of the inner tank 3; a branch pipe 6 fixedly installed in the inner tank 3, the branch pipe 6 is communicated with the central tube 5, and the branch pipe 6 is evenly arranged on the upper and lower inner top surfaces and the rear inner side surface of the inner tank 3, so that the hot air flow can be evenly passed into various positions in the inner tank 3 through the branch pipe 6; a frame shell 7 fixedly installed on the left outer side wall of the inner tank 3, the frame shell 7 is connected to the left end of the central tube 5 and communicated with the central tube 5; a motor x8 fixedly installed on the frame shell 7, and the motor x8 is controlled by the control panel; a fan blade 9 rotatably installed on the frame shell 7, the fan blade 9 is fixed to the output end of the motor x8, and the fan blade 9 is driven by the motor x8 to rotate to generate airflow; a heating plate 10 rotatably installed in the central tube 5, A through hole 1001 is provided on the heating plate 10. When the wind flow generated by the fan blade 9 passes through the heating plate 10 through the through hole 1001, the heating plate 10 will be heated into hot wind flow. A total of ten heating plates 10 are provided. The ten heating plates 10 are staggered so that each through hole 1001 is staggered to form a spiral channel as a whole, so as to increase the time for the wind flow to pass through the heating plate 10 and improve the heating effect of the heating plate 10 on the wind flow; an electric wire 11 is fixedly installed on the heating plate 10, and the electric wire 11 is used to energize the heating plate 10. The energized heating plate 10 can generate heat, and whether the electric wire 11 is energized or not is controlled by the control panel; a partition net 12 is fixedly installed between the fan blade 9 and the heating plate 10 to separate and protect the two.

[0030] like Figure 4-Figure 5 As shown, the heat circulation heating fan also includes: an aspirator 13 fixedly mounted on the left side wall of the inner tank 3, the aspirator 13 can aspirate the airflow in the inner tank 3, a sensor control device is arranged in the aspirator 13, the sensor control device can sense the coke contained in the airflow it draws and feeds back to the control panel; a connecting shell x14 fixedly mounted on the left outer side wall of the inner tank 3, the connecting shell x14 is communicated with the frame shell 7; a connecting pipe 15 fixedly mounted between the connecting shell x14 and the aspirator 13, the connecting pipe 15 connects the connecting shell x14 and the aspirator 13, so as to supply the airflow drawn by the aspirator 13 back to the frame shell 7, so as to realize airflow circulation.

[0031] like Figure 6-Figure 8As shown, the heat circulation heating fan also includes: a fixed block 19 fixedly mounted on each heating plate 10; a stop block x20 fixedly mounted on the inner wall of the central tube 5, ten stops x20 are provided, each stop block x20 corresponds to the position of each fixed block 19, and the ten stops x20 are distributed in a straight line. Each fixed block 19 can be rotated by the heating plate 10 to abut against the stop block x20, and when abutting, the channel formed by the through opening 1001 of each heating plate 10 is a straight channel; a stop block y21 fixedly mounted on the inner wall of the central tube 5, ten stops y21 are provided, each stop block y21 corresponds to the position of each fixed block 19, and the ten stops y21 are distributed in a spiral line. Each fixed block 19 can be rotated by the heating plate 10 to abut against the stop block y21, and when abutting, the channel formed by the through opening 1001 of each heating plate 10 is a spiral channel.

[0032] like Figure 6-Figure 8 As shown, the heat circulation heating fan also includes: a mounting ring 22 rotatably mounted outside the central tube 5; a magnetic block 23 fixedly mounted on the mounting ring 22, the magnetic block 23 can be magnetically attracted to the fixed block 19, so that when the magnetic block 23 moves, it will be able to drive the fixed block 19 to move, thereby controlling the rotation of the heating plate 10; a motor y24 fixedly mounted on the frame shell 7, the motor y24 is controlled by the control panel; a gear 25 fixedly mounted on the output end of the motor y24; a convex tooth 26 fixedly mounted on the mounting ring 22, the convex tooth 26 is distributed along the outer edge of the mounting ring 22, the gear 25 is meshed with the convex tooth 26, and when the gear 25 rotates, the mounting ring 22 will be controlled to rotate through the convex tooth 26, thereby driving the electromagnetic block 35 to move.

[0033] like Figure 4-Figure 5 As shown, it also includes: a connecting shell y16 fixedly installed on the top of the chassis 1, the connecting shell y16 is communicated with the outside, and the wind sucked in by the fan blades 9 when rotating will enter the central tube 5 from the outside through the connecting shell y16; a rotating plate x17 rotatably installed on the connecting shell y16, the rotating plate x17 is provided with a row of eight, the rotating plate x17 closes the connecting shell y16, and will open the connecting shell y16 after rotation; a torsion spring x18 fixedly installed between the rotating plate x17 and the connecting shell y16, the torsion spring x18 enables the rotating plate x17 to reset itself after rotation, and the torsion spring x18 is sleeved on the axis of the rotating plate x17.

[0034] like Fig. 9As shown, it also includes: a connecting shell z27 fixedly installed on the right side wall of the inner liner 3, the connecting shell z27 is communicated with the outside, so that the outside wind can directly enter the inner liner 3; a rotating plate y28 rotatably installed on the connecting shell z27, the rotating plate y28 is provided with a row of five, the rotating plate y28 closes the connecting shell z27, and opens the connecting shell z27 after rotation; a torsion spring y29 fixedly installed between the rotating plate y28 and the connecting shell z27, the torsion spring y29 enables the rotating plate y28 to reset itself after rotation, and the torsion spring y29 is sleeved on the axis of the rotating plate y28.

[0035] like Figure 9-11 As shown, it also includes: a fixed frame 30 fixedly mounted on the right side of the chassis 1; a filter element 31 fixedly mounted on the fixed frame 30, the filter element 31 is communicated with the central tube 5, and the central tube 5 passes the coke smoke into the filter element 31 for purification and then discharges it; a mounting frame 32 fixedly mounted in the right end portion of the central tube 5; an inclined plate 33 rotatably mounted on the mounting frame 32, the inclined plate 33 closes the right end portion of the central tube 5, and when the inclined plate 33 tilts after rotation, it will open the right end portion of the central tube 5 to discharge the wind flow containing the coke smoke to the filter element 31 and accelerate the flow speed of the wind flow; a torsion spring z34 fixedly mounted between the inclined plate 33 and the mounting frame 32, the torsion spring z34 enables the inclined plate 33 to reset itself after rotation, and the torsion spring z34 is sleeved on the axis of the inclined plate 33; an electromagnetic block 35 fixedly mounted on the central tube 5, the electromagnetic block 35 is controlled by the control panel to be magnetic or not, and when the electromagnetic block 35 is magnetic, it can adsorb the inclined plate 33 and control the rotation of the inclined plate 33.

[0036] To use this oven:

[0037] Open the door cover 2, first adjust the position of the interlayer plate 4 according to the volume of the food to be baked, then place the food on the interlayer plate 4, close the door cover 2, then use the control panel to start the oven, and set the required baking time and baking temperature.

[0038] The heat circulation heating fan is started, the heating plate 10 is powered on to generate heat, the motor x8 drives the fan blades 9 to rotate, and the airflow is sucked from the outside to the central tube 5. The rotating plate x17 is rotated by the airflow to open the connecting shell y16, and the torsion spring x18 is twisted; the airflow entering the central tube 5 will pass through the heating plate 10, and will be heated to the set temperature by the heating plate 10, and then will evenly enter the inner pot 3 through the branch pipe 6 to bake the food; when the inner pot 3 and the central tube 5 are filled with airflow, the suction device 13 is started, and the airflow in the inner pot 3 begins to be sucked toward the frame shell 7, and the airflow is passed into the central tube by the fan blades 9. 5 is heated again and then passed into the inner pot 3, so that a heat cycle can be formed, so that the oven can recover excess heat, thereby saving energy; and when the suction device 13 supplies air flow into the inner pot 3, the fan blades 9 no longer need to obtain a large amount of air flow from the outside, so the amount of air passing through the rotating plate x17 is reduced, and the force on the rotating plate x17 is reduced, then the torsion spring x18 can reset the rotating plate x17 and close the connecting shell y16, and no longer obtain air flow from the outside, so that the air flow in the oven enters the circulation, is not disturbed by the external environment, and the circulation of the hot air flow can tend to be stable.

[0039] When the food is accidentally burnt when using the oven, the circulating hot air flow will drive the burnt smoke to pass through the aspirator 13 and be monitored by the sensor control device of the aspirator 13. Immediately: ① The sensor control device cuts off the power of the heating plate 10, stops the heating air flow, and prevents the food from being further burnt. At the same time, the heat circulation heating fan stops controlling the uniform temperature, thereby reducing unnecessary energy consumption; ② The sensor control device controls the motor x8 to start, controls the magnetic suction block 23 to rotate, guides the fixed block 19 to abut against the abutment block x20, rotates the heating plate 10 to align the upper opening 1001, and the air flow containing the burnt smoke can quickly pass through the heating plate 10 and move toward the filter element 31; ③ The sensor control device controls the electromagnetic block 35 to adsorb the inclined plate 33, so that the inclined plate 33 tilts to open the central tube 5, so that the filter element 31 can safely process the burnt smoke in the air flow and discharge it. At the same time, the inclined plate 33 will accelerate the air flow to the filter element 31, so that the filter element 31 can better capture the burnt smoke in the air flow, thereby improving the processing effect of the filter element 31.

[0040] When a certain amount of airflow in the inner liner 3 is discharged, the air pressure in the inner liner 3 is lower than that in the outside, and the rotating plate y28 can be rotated under the action of the air pressure difference, and the torsion spring y29 is twisted, so that airflow can flow into the inner liner 3, preventing the negative pressure in the inner liner 3 from causing the door cover 2 to be unable to open; when the air pressure difference in the inner liner 3 is restored, the torsion spring y29 turns back to the rotating plate y28, so that the inner liner 3 returns to a closed state.

[0041] In summary, when food is burnt when the user uses this oven, the oven can automatically stop heating and deal with the burnt smoke, avoiding the waste of energy caused by the continuous increase in energy consumption of food, and reducing the cleaning problems caused by the burnt food; and when the food is no longer baked and stops burning, and when the burnt smoke in the oven is dealt with, the motor x8 is turned off, the fan blades 9 stop rotating, and the oven stops running; when the user processes the food, the user uses the return function of the control panel to restore the oven so that the oven can be used again later.

[0042] The return function includes: controlling the electromagnetic block 35 to close, and the torsion spring z34 to control the inclined plate 33 to rotate back to close the right end of the central tube 5, so that when the oven is used again, the hot air flow in the central tube 5 can flow into the branch tube 6; and controlling the motor y24 to start the reverse rotation, so that the magnetic block 23 is reversed to rotate all the heating plates 10 back to the spiral state of the through-mouth 1001.

[0043] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A hot air circulation heating fan, characterized in that: include: A central tube (5); a frame (7) connected to the central tube (5); a motor x (8) fixedly connected to the frame (7); a fan blade (9) rotatably connected to the frame (7), the fan blade (9) rotating to generate wind flow, the fan blade (9) being fixed to the output end of the motor x (8); a heating plate (10) arranged in the central tube (5), the heating plate (10) generating heat when energized, a through hole (1001) for wind flow to pass through the heating plate (10), the wind flow passing through the through hole (1001) will be heated by the heating plate (10), and at least three heating plates (10) are arranged; an aspirator (13) connected to the frame (7), the aspirator (13) sucking the wind flow back into the frame (7).

2. The hot air circulation heating fan according to claim 1, characterized in that: The heating plate (10) can be in two states, one is to align the through openings (1001) to form a linear channel as a whole, and the other is to misalign the through openings (1001) to form a spiral channel as a whole. The heating plate (10) rotates to switch between the two states.

3. The hot air circulation heating fan according to claim 2, characterized in that: Also includes: A fixed block (19) fixedly connected to each heating plate (10); a stop block x (20) fixedly connected to the inner wall of the central tube (5), each stop block x (20) being arranged in a straight line, and when the fixed block (19) and the stop block x (20) are in contact with each other, a channel formed by the through opening (1001) of each heating plate (10) is a straight channel; a stop block y (21) fixedly connected to the inner wall of the central tube (5), each stop block y (21) being arranged in a spiral line, and when the fixed block (19) and the stop block y (21) are in contact with each other, a channel formed by the through opening (1001) of each heating plate (10) is a spiral channel. A linear channel; a mounting ring (22) rotatably connected to the outer wall of the central tube (5); a magnetic block (23) fixedly connected to the mounting ring (22), the magnetic block (23) being able to magnetically attract the fixed block (19), so that the movement of the magnetic block (23) can attract the fixed block (19) to move; a motor y (24) fixedly connected to the frame shell (7); a gear (25) fixedly connected to the output end of the motor y (24); a convex tooth (26) fixedly connected to the mounting ring (22), the gear (25) being meshed with the convex tooth (26), so that the gear (25) can control the rotation of the mounting ring (22).

4. An oven, characterized in that: The hot air circulation heating fan comprises the hot air circulation heating fan as described in claims 1-3, and also comprises: a chassis (1), a control panel is arranged on the chassis (1), the control panel controls the start and stop of the heating plate (10) and the motor x (8), a sensor control device is arranged in the aspirator (13), the sensor control device can sense the coke material contained in the airflow it extracts, and feed back to the control panel; a door cover (2) rotatably connected to the chassis (1); an inner liner (3) fixedly connected to the chassis (1), a central tube (5) fixedly connected to the inner liner (3), a frame shell (7) fixedly connected to the outside of the inner liner (3), and the aspirator (13) fixedly connected to the inner liner (3); a branch pipe (6) fixedly connected to the inner liner (3), the branch pipe (6) is evenly arranged on each inner side wall of the inner liner (3), and the branch pipe (6) is communicated with the central tube (5).

5. The oven according to claim 4, characterized in that: Also includes: A connection shell y (16) is fixedly connected to the chassis (1), and the connection shell y (16) is communicated with the frame shell (7); a rotating plate x (17) connected to the connection shell y (16) is rotatably connected, and the rotating plate x (17) rotates to control the connection shell y (16) to open or close; A torsion spring x (18) is fixedly connected between the rotating plate x (17) and the connecting shell y (16).

6. The oven according to claim 5, characterized in that: Also includes: A connecting shell z (27) is fixedly connected to the inner container (3), and the connecting shell z (27) is communicated with the outside; a rotating plate y (28) is rotatably connected to the connecting shell z (27), and the rotating plate y (28) rotates to control the opening and closing of the connecting shell z (27); and a torsion spring y (29) is fixedly connected between the rotating plate y (28) and the connecting shell z (27).

7. The oven according to claim 6, characterized in that: Also includes: A fixed frame (30) fixedly connected to the chassis (1); a filter element (31) fixedly connected to the fixed frame (30) for purifying coke smoke, the filter element (31) being communicated with a central tube (5); a mounting frame (32) fixedly connected inside the central tube (5); and an inclined plate (33) rotatably connected to the mounting frame (32), the inclined plate (33) rotating to control the opening and closing of the central tube (5).

8. The oven according to claim 7, characterized in that: Also includes: a torsion spring z (34) fixedly connected between the inclined plate (33) and the mounting frame (32); and an electromagnetic block (35) fixedly connected to the central tube (5). The electromagnetic block (35) is controlled to start and stop by a control panel. When the electromagnetic block (35) is magnetic, it can adsorb the inclined plate (33) and control the rotation of the inclined plate (33).

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