CN210227861U - Air duct system of electric oven - Google Patents
Air duct system of electric oven Download PDFInfo
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- CN210227861U CN210227861U CN201920656966.9U CN201920656966U CN210227861U CN 210227861 U CN210227861 U CN 210227861U CN 201920656966 U CN201920656966 U CN 201920656966U CN 210227861 U CN210227861 U CN 210227861U
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Abstract
An air flue system of an electric oven comprises a fan and a flue gas discharge pipe, wherein the fan is provided with an air inlet and an air outlet, an exhaust hood, an upper air guide hood and a lower air guide hood are arranged between an upper shell and a cavity, an air collecting channel is formed between the upper air guide hood and the lower air guide hood, an air exhaust channel is formed between the exhaust hood and the upper air guide hood, the upper air guide hood is provided with an air inlet, the air collecting channel is communicated with the air inlet, the air exhaust channel is communicated with the air outlet of the fan, and an air outlet is arranged between a control panel and a door body; the upper air guide hood is provided with at least one external cold air channel, and a flue gas guide hood is arranged between the upper air guide hood and the exhaust hood. The utility model discloses an electric oven air duct system has following advantage: 1. the flue gas is not directly discharged outwards, so that the rapid loss of the heat of the oven can be effectively reduced, and the energy efficiency of the oven is improved; 2. the smoke is pumped up by the fan and then is mixed with the outside cold air, so that the temperature of the blown smoke is greatly reduced, and the overhigh temperature of the control panel due to the blown hot air is avoided.
Description
Technical Field
The utility model relates to an electric oven, in particular to electric oven air duct system.
Background
The electric oven on the existing market usually adopts the heating tube to produce heat and barbecue food, and the in-process of barbecue can produce more oil smoke, and these oil smoke need in time be discharged to the box outside. In the existing oven, a smoke outlet (smoke exhaust pipe) is usually formed in a cavity wall, the smoke outlet (smoke exhaust pipe) is communicated with a blowing channel of a fan in an air duct system, and oil smoke exhausted from the smoke outlet (smoke exhaust pipe) is directly brought out of an oven body by air blown out by the fan.
Some ovens are limited by the installation position, and the air outlet of the air duct system is arranged on the front surface of the box body, in this case, the air duct system has the following two problems:
1. the oil smoke discharged from the smoke outlet (smoke discharge pipe) is directly brought out of the box body by the air blown out by the fan, and the temperature of the air discharged out of the box body is higher, so that discomfort is caused to an operator; if the control panel is adjacent to the air outlet, the temperature of the control panel is too high, and the performance and the service life of electric elements in the control panel are influenced;
2. in the electric oven, especially the electric oven with steaming function, the oil smoke discharged from the smoke outlet (smoke discharge pipe) contains certain moisture, and the components in the oven body are easy to corrode;
3. the smoke outlet (smoke exhaust pipe) is communicated with the air blowing channel of the fan in the air duct system, the air blown out by the fan is easy to blow into the cavity, so that the heat in the cavity is lost, the energy of the oven is reduced, and the barbecue effect of food is influenced.
On the other hand, in the conventional oven, cold air outside is generally pumped into the oven body, and the cold air is discharged outside the oven body after passing through each heating device, so that the discharged air has high temperature and causes discomfort to an operator.
Therefore, further improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric oven duct system that efficiency is high, flue gas temperature is low, the practicality is strong to overcome the weak point among the prior art.
According to the electric oven air duct system of this purpose design, including setting up the fan between epitheca and cavity and setting up the flue gas discharge pipe at the cavity top, the fan is equipped with air intake and air outlet, the outside of cavity is equipped with the box, and one side of box is equipped with a body, and a body top is equipped with control panel, its characterized in that: an exhaust hood, an upper air guide hood and a lower air guide hood are arranged between the upper shell and the cavity from top to bottom, the fan is installed in the exhaust hood, and the flue gas discharge pipe penetrates through the lower air guide hood; an air collecting channel is formed between the upper air guide cover and the lower air guide cover, an air exhausting channel is formed between the exhaust cover and the upper air guide cover, an air inlet is formed in the upper air guide cover, the air inlet is communicated with an air inlet of the fan, the air collecting channel is communicated with the air inlet, the air exhausting channel is communicated with an air outlet of the fan, a smoke exhaust pipe penetrates through the air collecting channel, an air outlet is formed between the control panel and the door body, and the air outlet is located at the tail end of the air exhausting channel; the upper air guide cover is provided with at least one external cold air channel, and the air inlet is communicated with the external cold air channel; a smoke guide cover is arranged between the upper air guide cover and the exhaust cover and is respectively communicated with the smoke discharge pipe and the air collecting channel.
The smoke guide cover is positioned in the exhaust channel, the smoke guide cover is provided with an air inlet guide opening and an air outlet guide opening, the air inlet guide opening is communicated with the smoke exhaust pipe, the air outlet guide opening is communicated with the air collecting channel, the diameter of the air outlet guide opening is smaller than that of the air inlet guide opening, and the orientation of the air outlet guide opening is non-horizontal; the smoke guide cover is provided with a guide inclined plane and a bottom surface, the guide inclined plane is adjacent to the air inlet guide opening, the bottom surface is adjacent to the air outlet guide opening, and the bottom surface is straight with the top end of the smoke discharge pipe.
The door body is internally provided with an indoor air duct flowing from bottom to top, the tail end of the indoor air duct is provided with an air outlet, one side of the air outlet is provided with an air outlet connector, and the air outlet connector is respectively communicated with the air outlet and an air collecting channel.
The flue gas discharge pipe is in the shape of an inverted funnel, a convex hull is arranged at the position, located at the flue gas discharge port, of the top wall of the cavity, a plurality of meshes are arranged on the top surface of the convex hull, and the flue gas discharge pipe is sleeved on the convex hull.
The fan is a turbine fan, the direction of the air inlet is in the vertical direction, and the direction of the air outlet is in the horizontal direction; the fan is adjacent to cavity top rear side position, and the flue gas discharge pipe is adjacent to cavity top front side position.
The upper air guide cover is provided with an air collecting cover, the top of the air collecting cover is provided with a fan interlayer, and the air inlet is arranged on the fan interlayer.
A smoke discharge port is formed in the position, adjacent to the smoke discharge pipe, of the upper gas guide cover, a sealing ring is sleeved on the smoke discharge port, and the sealing ring is located between the upper gas guide cover and the smoke guide cover; the lower gas guide cover is provided with a flue gas exhaust isolation pipe, the flue gas exhaust isolation pipe is positioned in the flue gas outlet, and the flue gas exhaust pipe penetrates through the flue gas exhaust isolation pipe.
The external cold air channel comprises a first external cold air channel and a second external cold air channel, a first external cold air inlet is formed in the tail end of the first external cold air channel, and a second external cold air inlet is formed in the tail end of the second external cold air channel.
The inner side of the top of the cavity is provided with a plurality of heating tubes, and the outer side of the door body is provided with a handle.
The utility model discloses a flue gas of electric oven is not directly through the passageway discharge of last exhaust hood, but the narrow and small space of flue gas direction cover through below earlier, arranges the fan bottom by the aperture of flue gas direction cover again, smugglies other outside cold air secretly simultaneously to make hot flue gas and cold air mix the back, together discharge outward through last exhaust hood again. The design of the air duct system has the advantages that:
1. the flue gas of the electric oven is not directly discharged outwards, so that the rapid loss of the heat of the oven can be effectively reduced, and the energy efficiency of the oven is improved;
2. the smoke is pumped up by the fan and then is mixed with the outside cold air, so that the temperature of the blown smoke is greatly reduced, and the overhigh temperature of the control panel due to the blown hot air is effectively avoided.
Drawings
Fig. 1 is a sectional perspective view of an electric oven according to an embodiment of the present invention.
Fig. 2 is a sectional perspective view of a part of the structure of the electric oven according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of an electric oven according to an embodiment of the present invention.
Fig. 4 is a sectional view of a part of the structure of the electric oven according to an embodiment of the present invention.
Fig. 5 is a schematic view of the overall structure of the electric oven according to an embodiment of the present invention after the upper case is opened.
Fig. 6 is an exploded schematic view of the electric oven in a bottom view according to an embodiment of the present invention.
Fig. 7 is an exploded schematic view of an electric oven according to an embodiment of the present invention in a top view.
Fig. 8 is an exploded schematic view of an air exhaust assembly according to an embodiment of the present invention.
Fig. 9 is a schematic view of the overall structure of the smoke guide cover according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1-9, the air duct system of the electric oven comprises a fan 3 arranged between an upper shell 1 and a cavity 2 and a flue gas discharge pipe 7 arranged at the top of the cavity 2, wherein the fan 3 is provided with an air inlet 3.1 and an air outlet 3.2, a box body 16 is arranged outside the cavity 2, a door body 11 is arranged on one side of the box body 16, a control panel 8 is arranged above the door body 11, an exhaust hood 4, an upper air guide hood 5 and a lower air guide hood 6 are arranged between the upper shell 1 and the cavity 2 from top to bottom, the fan 3 is arranged in the exhaust hood 4, and the flue gas discharge pipe 7 penetrates through the lower air guide hood 6; an air collecting channel a is formed between the upper air guide cover 5 and the lower air guide cover 6, an air discharging channel b is formed between the air discharging cover 4 and the upper air guide cover 5, an air inlet 5.1 is arranged on the upper air guide cover 5, the air inlet 5.1 is communicated with an air inlet 3.1 of the fan 3, the air collecting channel a is communicated with the air inlet 5.1, the air discharging channel b is communicated with an air outlet 3.2 of the fan 3, a flue gas discharging pipe 7 penetrates through the air collecting channel a, an air discharging port 10 is arranged between the control panel 8 and the door body 11, and the air discharging port 10 is positioned at the tail end of the air discharging channel b; the smoke outlet 7 is communicated with the air inlet 5.1, can be uniformly mixed with other gas with lower temperature than the smoke and then is discharged outside the box body 16, so that the temperature of the finally discharged gas is low and uniform, and the comfort level of a user is improved. The upper air guide cover 5 is provided with at least one external cold air channel, and an air inlet 5.1 is communicated with the external cold air channel; a smoke guide cover 13 is arranged between the upper air guide cover 5 and the exhaust cover 4, and the smoke guide cover 13 is respectively communicated with the smoke discharge pipe 7 and the air collection channel a. The smoke in the electric oven is firstly discharged from a smoke discharge pipe 7, enters an air collecting channel a through a smoke guide cover 13, is mixed with cold air introduced from an external cold air channel at an air inlet 5.1, and the mixed gas is pumped to an air exhaust channel b through a fan 3 and is finally discharged from an air outlet 10 at the tail end of the air exhaust channel b; the air duct system has the advantages that: the flue gas of the oven is not directly discharged outwards, so that the rapid loss of the heat of the oven can be effectively reduced, and the energy efficiency of the oven is improved; the smoke is sucked up by the fan 3 and then is mixed with the outside cold air, so that the temperature of the blown smoke is greatly reduced, and the overhigh temperature of the control panel 8 caused by the blown hot air is effectively avoided.
Further, the smoke guide cover 13 is positioned in the exhaust channel b, the smoke guide cover 13 is provided with an air inlet guide opening 13.2 and an air outlet guide opening 13.1, the air inlet guide opening 13.2 is communicated with the smoke exhaust pipe 7, the air outlet guide opening 13.1 is communicated with the air collecting channel a, the diameter of the air outlet guide opening 13.1 is smaller than that of the air inlet guide opening 13.2, the orientation of the air outlet guide opening 13.1 is non-horizontal orientation, and can be downward oriented or downward inclined oriented to reduce the air draft effect of the fan 3, so that the natural exhaust of smoke is facilitated, and the heat loss in the cavity 2 is reduced; the flue gas guide cover 13 is provided with a guide inclined plane 13.3 and a bottom surface 13.4, the guide inclined plane 13.3 is adjacent to the air inlet guide opening 13.2, the bottom surface 13.4 is adjacent to the air outlet guide opening 13.1, and the bottom surface 13.4 is straight with the top end of the flue gas discharge pipe 7. The upper end of the vertical flue gas discharge pipe 7 is connected with a transverse flue gas guide cover 13, flue gas discharged from the flue gas discharge pipe 7 firstly passes through an air inlet guide opening 13.2 of the flue gas guide cover 13, then flows out of an air outlet guide opening 13.1 under the guide of a guide inclined plane 13.3, and finally reaches the air collecting channel a, so that the path of the flue gas discharge is turned, the heat in the cavity 2 can be prevented from being excessively lost, the energy efficiency of the electric oven is improved, moisture in the flue gas is easy to form condensed water on the flue gas guide cover 13 and flows back to the cavity 2, water is not easy to accumulate in the lower air collecting channel a, and the corrosion to relevant devices in the air collecting channel a is reduced. The flue gas guide cover 13 is positioned in the exhaust channel b, and the temperature of air blown out of the exhaust channel b is lower than that of flue gas in the flue gas guide cover 13, so that moisture in the flue gas guide cover 13 is condensed, and the condensed moisture flows back into the cavity 2; and the arrangement is compact. The bottom surface 13.4 of the smoke guide cover 13 is straight or almost straight with the top end of the smoke discharge pipe 7, so that condensed water formed on the smoke guide cover 13 is easy to flow back to the cavity 2.
Furthermore, an indoor air duct c flowing from bottom to top is arranged in the door body 11, an air outlet 9 is arranged at the tail end of the indoor air duct c, an air outlet connector 17 is arranged on one side of the air outlet 9, and the air outlet connector 17 is respectively communicated with the air outlet 9 and the air collecting channel a. The door body 11 is provided with the door inner air duct c which can radiate the heat of the door body 11, so that a user cannot feel high temperature when approaching the door body 11.
Furthermore, the smoke exhaust pipe 7 is in an inverted funnel shape, the top wall of the cavity 2 is provided with a convex hull 12 at the position of the smoke exhaust port 7, the top surface of the convex hull 12 is provided with a plurality of meshes 12.1, the smoke exhaust pipe 7 is sleeved on the convex hull 12, and the arrangement is easy for the installation of the smoke exhaust pipe 7 and the sealing between the smoke exhaust pipe 7 and the peripheral wall of the convex hull 12; the small meshes 12.1 can prevent the too large caliber of the smoke outlet 7 from causing the too fast loss of heat, and can meet the requirement of air displacement.
Furthermore, the fan 3 is a turbine fan, the direction of the air inlet 3.1 is a vertical direction, and the direction of the air outlet 3.2 is a horizontal direction; the fan 3 is adjacent to the rear position of the top of the cavity 1, and the smoke discharge pipe 7 is adjacent to the front position of the top of the cavity 1. The smoke discharge pipe 7 is adjacent to the front side of the cavity 2, so that the smoke discharge port is easy to clean, and the condensed water returned by the smoke discharge port 7 cannot drip on the food positioned in the middle of the cavity 2; the arrangement can also lengthen the horizontal distance between the flue gas discharge pipe 7 and the fan 3, so that the flue gas with higher temperature can be fully mixed with other gas with lower temperature, and the gas discharged out of the box body 16 is more uniform.
Furthermore, the upper air guide cover 5 is provided with an air collecting cover 5.3, the top of the air collecting cover 5.3 is provided with a fan interlayer 5.2, and the air inlet 5.1 is arranged on the fan interlayer 5.2.
Furthermore, a flue gas outlet 5.4 is arranged at the position of the upper gas guide hood 5 adjacent to the flue gas discharge pipe 7, a sealing ring 15 is sleeved on the flue gas outlet 5.4, and the sealing ring 15 is positioned between the upper gas guide hood 5 and the flue gas guide hood 13; the lower gas guide hood 6 is provided with a flue gas exhaust isolation pipe 6.1, the flue gas exhaust isolation pipe 6.1 is positioned in the flue gas exhaust port 5.4, and a flue gas exhaust pipe 7 penetrates through the flue gas exhaust isolation pipe 6.1.
Further, the external cold air channel comprises a first external cold air channel d and a second external cold air channel e, a first external cold air inlet 5.5 is formed in the tail end of the first external cold air channel d, and a second external cold air inlet 5.6 is formed in the tail end of the second external cold air channel e. The entry of external cold wind passageway can set up on the left and right, preceding, the back wall of box 16, the utility model discloses establish on left and right lateral wall, can make flue gas and cold wind fully mix after 5.1 entering fans 3 in the income wind gap, the wind temperature that blows out is more even.
Furthermore, a plurality of heating tubes 14 are arranged on the inner side of the top of the cavity 1, and a handle 16 is arranged on the outer side of the door body 11.
Furthermore, the electric oven of the utility model can be an electric oven with steam function or a microwave steam barbecue integrated machine.
The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an electric oven air duct system, is including setting up fan (3) between epitheca (1) and cavity (2) and setting up flue gas discharge pipe (7) at cavity (2) top, fan (3) are equipped with air intake (3.1) and air outlet (3.2), the outside of cavity (2) is equipped with box (16), and one side of box (16) is equipped with a body (11), and door body (11) top is equipped with control panel (8), its characterized in that: an exhaust hood (4), an upper air guide hood (5) and a lower air guide hood (6) are arranged between the upper shell (1) and the cavity (2) from top to bottom, the fan (3) is installed in the exhaust hood (4), and a flue gas discharge pipe (7) penetrates through the lower air guide hood (6); an air collecting channel (a) is formed between the upper air guide cover (5) and the lower air guide cover (6), an air exhaust channel (b) is formed between the exhaust cover (4) and the upper air guide cover (5), an air inlet (5.1) is formed in the upper air guide cover (5), the air inlet (5.1) is communicated with an air inlet (3.1) of the fan (3), the air collecting channel (a) is communicated with the air inlet (5.1), the air exhaust channel (b) is communicated with an air outlet (3.2) of the fan (3), a flue gas exhaust pipe (7) penetrates through the air collecting channel (a), an air exhaust port (10) is formed between the control panel (8) and the door body (11), and the air exhaust port (10) is positioned at the tail end of the air exhaust channel (b); the upper air guide cover (5) is provided with at least one external cold air channel, and the air inlet (5.1) is communicated with the external cold air channel; a smoke guide cover (13) is arranged between the upper air guide cover (5) and the exhaust cover (4), and the smoke guide cover (13) is respectively communicated with the smoke discharge pipe (7) and the air collection channel (a).
2. The electric oven ducting system of claim 1, wherein: the smoke guide cover (13) is positioned in the exhaust channel (b), the smoke guide cover (13) is provided with an air inlet guide opening (13.2) and an air outlet guide opening (13.1), the air inlet guide opening (13.2) is communicated with the smoke exhaust pipe (7), the air outlet guide opening (13.1) is communicated with the air collecting channel (a), the diameter of the air outlet guide opening (13.1) is smaller than that of the air inlet guide opening (13.2), and the orientation of the air outlet guide opening (13.1) is non-horizontal; the flue gas guide cover (13) is provided with a flow guide inclined plane (13.3) and a bottom surface (13.4), the flow guide inclined plane (13.3) is adjacent to the air inlet flow guide opening (13.2), the bottom surface (13.4) is adjacent to the air outlet flow guide opening (13.1), and the bottom surface (13.4) is straight with the top end of the flue gas discharge pipe (7).
3. The electric oven ducting system of claim 2, wherein: the door body (11) is internally provided with an indoor air duct (c) flowing from bottom to top, the tail end of the indoor air duct (c) is provided with an air outlet (9), one side of the air outlet (9) is provided with an air outlet connector (17), and the air outlet connector (17) is respectively communicated with the air outlet (9) and an air collecting channel (a).
4. The electric oven ducting system of claim 3, wherein: the flue gas discharge pipe (7) is in an inverted funnel shape, a convex hull (12) is arranged at the position, located on the flue gas discharge pipe (7), of the top wall of the cavity (2), a plurality of meshes (12.1) are arranged on the top surface of the convex hull (12), and the flue gas discharge pipe (7) is sleeved on the convex hull (12).
5. The electric oven ducting system of claim 4, wherein: the fan (3) is a turbine fan, the direction of the air inlet (3.1) is vertical, and the direction of the air outlet (3.2) is horizontal; the fan (3) is adjacent to the rear side position of the top of the cavity (2), and the smoke discharge pipe (7) is adjacent to the front side position of the top of the cavity (2).
6. The electric oven ducting system of claim 5, wherein: the upper air guide cover (5) is provided with an air collecting cover (5.3), the top of the air collecting cover (5.3) is provided with a fan interlayer (5.2), and the air inlet (5.1) is arranged on the fan interlayer (5.2).
7. The electric oven ducting system of claim 6, wherein: a flue gas outlet (5.4) is formed in the position, adjacent to the flue gas discharge pipe (7), of the upper gas guide cover (5), a sealing ring (15) is sleeved on the flue gas outlet (5.4), and the sealing ring (15) is located between the upper gas guide cover (5) and the flue gas guide cover (13); the lower gas guide hood (6) is provided with a flue gas discharge isolation pipe (6.1), the flue gas discharge isolation pipe (6.1) is positioned in the flue gas discharge port (5.4), and the flue gas discharge pipe (7) penetrates through the flue gas discharge isolation pipe (6.1).
8. The electric oven ducting system of claim 7, wherein: the external cold air channel comprises a first external cold air channel (d) and a second external cold air channel (e), a first external cold air inlet (5.5) is formed in the tail end of the first external cold air channel (d), and a second external cold air inlet (5.6) is formed in the tail end of the second external cold air channel (e).
9. The electric oven duct system of any of claims 1-8, wherein: the inner side of the top of the cavity (2) is provided with a plurality of heating tubes (14), and the outer side of the door body (11) is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920656966.9U CN210227861U (en) | 2019-05-08 | 2019-05-08 | Air duct system of electric oven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920656966.9U CN210227861U (en) | 2019-05-08 | 2019-05-08 | Air duct system of electric oven |
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| CN210227861U true CN210227861U (en) | 2020-04-03 |
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| CN201920656966.9U Active CN210227861U (en) | 2019-05-08 | 2019-05-08 | Air duct system of electric oven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984633A (en) * | 2019-05-08 | 2019-07-09 | 广东格兰仕集团有限公司 | A kind of electric oven ducting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984633A (en) * | 2019-05-08 | 2019-07-09 | 广东格兰仕集团有限公司 | A kind of electric oven ducting system |
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