CN215191015U - Baking cooking exhaust structure and oven with same - Google Patents

Abstract

The utility model relates to a baking culinary art exhaust structure and oven that has this structure, first exhaust port has been seted up on the roof of inner bag, set up the first air inlet that is arranged in above-mentioned exhaust passage on the aforesaid, the vertical exhaust sleeve that is provided with in the above-mentioned installation clearance, the upper end and the first air inlet intercommunication of the exhaust inner tube among this exhaust sleeve, the lower extreme is with the first exhaust port fluid intercommunication of inner bag, the upper end opening of exhaust ring chamber and with above-mentioned first air inlet intercommunication and the lower extreme seals, the last ventilative mouth of having seted up of exhaust inner tube, and the exhaust moves the board and can reciprocate along the inner peripheral surface of exhaust inner tube. The utility model discloses can move the board through the exhaust and can change each ventilative mouthful and be located the exhaust and move the open-ended size of board below part along the removal of each ventilative mouthful direction of height, and then change exhaust sleeve's exhaust velocity, and then realize the regulation to the exhaust velocity of inner bag, promote the effect of toasting.

Description

Baking cooking exhaust structure and oven with same

Technical Field

The utility model relates to an oven field especially relates to a baking culinary art exhaust structure and have oven of this structure.

Background

The oven is a cooking device for heating and baking food by using a built-in heating device (such as a heating pipe, a hot air blower and the like), and hot gas (containing certain steam) generated in an inner container in the cooking process enters an exhaust passage and is discharged outside. Existing ovens typically have only one fixed exhaust port, for example: the oven structure is disclosed by Chinese invention patent with the application number of ZL201810480440.X (with the publication number of CN110495792A), Chinese invention patent with the patent number of ZL201621238940.5 (with the publication number of CN206651749U) and the like.

However, the requirements of the food on humidity in different stages of baking are different, for example, in the temperature rising stage at the beginning of baking, the exhaust is slow to ensure the heat required by the temperature rising of the inner container, when the moisture of the food is evaporated to generate a large amount of water vapor in the baking process, the exhaust is fast, if the moisture in the inner container is not timely exhausted, the baking effect is affected, the food is colored in the later stage of baking, a certain amount of food needs to be kept, and at the moment, the inner container needs to keep a low exhaust speed. The existing oven is only provided with one fixed exhaust port, the exhaust speed is fixed, and the exhaust speed can not be adjusted according to cooking requirements in the process of baking food, so that the baking effect is influenced, and the use experience of a user is influenced.

Disclosure of Invention

The utility model aims to solve the first technical problem that provides an exhaust velocity is adjustable and toasts effectual baking culinary art exhaust structure to prior art.

The second technical problem to be solved by the invention is to provide an exhaust structure for baking cooking, which can self-feedback regulate and control the exhaust speed according to the inner pressure of an inner container, aiming at the prior art.

The third technical problem to be solved by the present invention is to provide an oven with the above mentioned exhaust structure for broiling and cooking.

The utility model provides a technical scheme that at least one above-mentioned technical problem adopted does: an exhaust structure for baking cooking, comprising an inner container, an upper mounting plate is arranged above the inner container, a mounting gap is formed between the lower surface of the upper mounting plate and the top surface of the inner container, an air deflector is covered on the upper surface of the upper mounting plate, an exhaust channel with an exhaust fan is enclosed between the air deflector and the upper surface of the upper mounting plate, characterized in that a first exhaust port is arranged on the top wall of the inner container, a first air inlet positioned in the exhaust channel is arranged on the upper mounting plate, an exhaust sleeve is vertically arranged in the mounting gap, the exhaust sleeve comprises an exhaust inner pipe and an exhaust outer pipe sleeved outside the exhaust inner pipe, an exhaust ring cavity is formed between the inner surface of the exhaust outer pipe and the outer surface of the exhaust inner pipe along the circumferential direction, the upper end of the exhaust inner pipe is closed, the lower end of the exhaust ring cavity is communicated with the first exhaust port in a fluid manner, the upper end of the exhaust ring cavity is opened along the circumferential direction and is communicated with the first air inlet, and the lower end of the exhaust ring cavity is closed, and the pipe wall of the exhaust inner pipe is provided with ventilation ports which extend vertically at intervals along the circumferential direction, and the exhaust inner pipe is provided with an exhaust moving plate which can move up and down along the inner circumferential surface of the exhaust inner pipe transversely at intervals.

Furthermore, the lower surface of the exhaust moving plate is a pressed surface which can be acted by the air pressure of the gas discharged from the first exhaust port, and the bottom of the exhaust moving plate is provided with an elastic resetting structure which enables the exhaust moving plate to have the tendency of moving upwards along the inner surface of the exhaust inner pipe. Therefore, the movement of the exhaust moving plate is under the combined action of the gravity of the exhaust moving plate, the pressure of the pressure-receiving surface and the elastic reset structure, and the self-adaptive movement of the exhaust moving plate can be realized according to the change of the internal pressure of the liner, so that the self-adaptive adjustment of the exhaust speed according to the internal pressure of the liner is realized.

Furthermore, a wind-collecting cover is covered on the first exhaust port on the top surface of the inner container, a wind-collecting opening is arranged on the top wall of the wind-collecting cover, the lower end of the inner exhaust pipe is communicated with the air collecting port, so that the exhaust gas of the liner firstly enters a space enclosed by the air collecting cover and the top surface of the liner, then enters the inner exhaust pipe through the air collecting port, thereby realizing the communication between the lower end of the inner exhaust pipe and the first exhaust port of the inner container, the elastic reset structure comprises a pressure spring which is vertically arranged, a first mounting seat which is arranged on the lower surface of the exhaust moving plate and a second mounting seat which is arranged on the top surface of the inner container, the upper end and the lower end of the pressure spring are respectively arranged on the first mounting seat and the second mounting seat, so that on one hand, the stable installation of the pressure spring is realized, and on the other hand, the pressure spring can better support the exhaust moving plate to enable the exhaust moving plate to have the upward moving trend.

Further, the first exhaust port comprises at least two small exhaust holes, and the small exhaust holes are uniformly distributed on the top wall of the inner container and covered by the air collecting cover. If design into conventional haplopore structure with first exhaust port, then the regional steam exit velocity in first exhaust port below is higher than other regions of inner bag, and then the food surface region that this first exhaust port corresponds colors too deeply, leads to toasting the poor problem of homogeneity, and the utility model discloses in design into the exhaust aperture structure of dispersion with first exhaust port then can avoid this problem, promote the homogeneity of toasting.

Further, the exhaust fan is installed on an air inlet of the exhaust passage and comprises a centrifugal impeller, and the first air inlet is vertically opposite to the center of the centrifugal impeller. Therefore, under the action of negative pressure formed by rotation of the centrifugal impeller, exhaust gas entering the exhaust ring cavity can quickly enter the exhaust channel through the first air inlet, and the exhaust speed is improved.

Furthermore, the upper mounting plate is also provided with a second air inlet positioned in the exhaust channel, and the second air inlet is communicated with the mounting gap. Therefore, hot air in the mounting gap can enter the exhaust channel through the second air inlet and is discharged outside, and the mounting gap is communicated with other areas in the whole machine, so that the heat dissipation of the whole machine can be realized.

Further, the number of the second air inlets is at least two, and each second air inlet is arranged opposite to the centrifugal impeller up and down and is circumferentially spaced by taking the first air inlet as a center. Therefore, the quick heat dissipation of the interior of the whole machine can be realized under the action of negative pressure generated by the rotation of the centrifugal impeller.

Further, a second air outlet is formed in the top wall of the inner container, a third air inlet located in the air exhaust channel is formed in the upper mounting plate, and the third air inlet is communicated with the second air outlet through a vertically extending air permeable pipe. Set up first exhaust port and second gas vent on the inner bag like this simultaneously, through the setting of double gas vent, can improve the exhaust efficiency of inner bag on the one hand, on the other hand second gas vent is normally open the gas vent for satisfying the normal exhaust of inner bag, and first exhaust port and exhaust sleeve constitute and become exhaust passage, are used for realizing the regulation to inner bag exhaust velocity, and both mating reaction can realize the regulation to inner bag exhaust velocity better, and then promote the effect of toasting.

Furthermore, the first exhaust port is arranged in the middle of the top wall of the inner container, and the second exhaust port is arranged at the front end of the top wall of the inner container. The utility model discloses well first gas vent is the structure that comprises a plurality of exhaust apertures, and the second gas vent is single open structure, and is visible, and the air current homogeneity of first gas vent department is higher than the second gas vent, carries out two gas vents simultaneously and can further promote the homogeneity of toasting as above setting up.

The technical solution adopted to further solve the third technical problem is as follows: an oven is characterized by having the air exhaust structure for the broiling cooking.

Compared with the prior art, the utility model has the advantages of: the upper end of an exhaust inner pipe in the exhaust sleeve is communicated with a first air inlet, the lower end of the exhaust inner pipe is communicated with a first exhaust port of the inner container in a fluid mode, the upper end of an exhaust annular cavity is opened and communicated with the first air inlet, the lower end of the exhaust annular cavity is closed, a ventilation port is formed in the exhaust inner pipe, an exhaust moving plate can move up and down along the inner circumferential surface of the exhaust inner pipe, therefore, when the exhaust moving plate is located below the ventilation port, the exhaust moving plate closes the exhaust sleeve, gas in the inner container cannot be discharged outside through the first exhaust port and the exhaust sleeve, when the exhaust moving plate moves up along the ventilation ports, the parts of the ventilation ports are located below the exhaust moving plate, the gas in the inner container can enter the exhaust inner pipe through the first exhaust port and enter the exhaust annular cavity through the parts, located below the exhaust moving plate, of the ventilation ports and finally enter the exhaust channel through the first air inlet through the upper end of the exhaust annular cavity, and the exhaust moving plate along the height direction of the ventilation ports can change the positions of the ventilation ports, and the ventilation ports are located below the exhaust moving plate The size of the partial opening area further changes the exhaust speed of the exhaust sleeve, and the adjustment of the exhaust speed of the liner is realized, namely when the area of the part of each ventilation opening below the exhaust moving plate is increased, the exhaust speed is increased, and when the area of the part of each ventilation opening below the exhaust moving plate is decreased, the exhaust speed is reduced.

Drawings

Fig. 1 is a schematic structural view of an exhaust structure for grilling cooking in an embodiment of the present invention;

FIG. 2 is a sectional view of an exhaust structure for grill cooking according to an embodiment of the present invention (in a slow exhaust state);

FIG. 3 is a schematic view of the structure of FIG. 2 in another direction;

fig. 4 is a sectional view of the grill cooking exhaust structure according to the embodiment of the present invention in another state (in the rapid exhaust state).

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, an oven includes an exhaust structure for baking and cooking, the exhaust structure for baking and cooking includes an inner container 1, an upper mounting plate 2 is disposed above the inner container 1, a mounting gap 3 is formed between a lower surface of the upper mounting plate 2 and a top surface of the inner container 1, an air deflector 40 is covered on an upper surface of the upper mounting plate 2, an exhaust passage 4 having an exhaust fan 41 is enclosed between the air deflector 40 and the upper surface of the upper mounting plate 2, in this embodiment, the exhaust fan 41 is a centrifugal fan, and the exhaust fan 41 is mounted on an air inlet of the exhaust passage 4.

Furthermore, a first exhaust port 11 is arranged on the top wall of the inner container 1, a first air inlet 21 positioned in the exhaust channel 4 is arranged on the upper mounting plate 2, an exhaust sleeve 6 is vertically arranged in the mounting gap 3, the exhaust sleeve 6 comprises an exhaust inner pipe 62 and an exhaust outer pipe 61 sleeved outside the exhaust inner pipe 62, an exhaust ring cavity 63 is formed between the inner surface of the exhaust outer pipe 61 and the outer surface of the exhaust inner pipe 62 along the circumferential direction, the upper end of the exhaust inner pipe 62 is closed and the lower end is in fluid communication with the first exhaust port 11, the upper end of the exhaust ring chamber 63 is opened in the circumferential direction and communicates with the first intake port 21 while the lower end is closed, furthermore, the inner tube wall of the inner exhaust tube 62 is provided with vertically extending ventilation holes 621 at intervals along the circumferential direction, an exhaust moving plate 7 is provided across the exhaust inner pipe 62 so as to be movable up and down along the inner peripheral surface of the exhaust inner pipe 62. Thus, when the exhaust moving plate 7 is located below the air vents 621, the exhaust moving plate 7 closes the exhaust sleeve 6, the gas in the liner 1 cannot be discharged through the first exhaust port 11 and the exhaust sleeve 6, when the exhaust moving plate 7 moves upward along each air vent 621 so that the part of each air vent 621 is located below the exhaust moving plate 7, the gas in the liner 1 can enter the exhaust inner tube 62 through the first exhaust port 11, and enter the exhaust ring cavity 63 through the part of each air vent 621 located below the exhaust moving plate 7, and finally enter the exhaust channel 4 through the first intake port 21 through the upper end of the exhaust ring cavity 63, and the size of the opening area of the part of each air vent 621 located below the exhaust moving plate 7 can be changed through the movement of the exhaust moving plate 7 along the height direction of each air vent 621, so as to change the exhaust speed of the exhaust sleeve 6, thereby realizing the adjustment of the exhaust speed of the liner 1, that is when the area of the part of each air vent 621 located below the exhaust moving plate 7 is increased, the air discharge speed increases, and when the area of the portion of each air permeation hole 621 located on the air discharge movement plate 7 becomes smaller, the air discharge speed decreases.

In addition, in this embodiment, the top wall of the inner container 1 is further opened with a second exhaust port 12, and the upper mounting plate 2 is further opened with a third air inlet 23 located in the exhaust passage 4, and the third air inlet 23 is communicated with the second exhaust port 12 through a vertically extending ventilation pipe 9. Set up first gas vent 11 and second gas vent 12 on the inner bag 1 like this simultaneously, setting through the double exhaust port, can improve the exhaust efficiency of inner bag 1 on the one hand, on the other hand second gas vent 12 is normally open the gas vent (constituting fixed exhaust passage through second gas vent 12 and ventilative pipe 9 promptly), a normal exhaust for satisfying inner bag 1, and first gas vent 11 and exhaust sleeve 6 constitute and become exhaust passage, be used for realizing the regulation to 1 exhaust velocity of inner bag, both mating reaction can realize the regulation to 1 exhaust velocity of inner bag better, and then promote the effect of toasting.

The exhaust moving plate 7 can move up and down along the inner surface of the exhaust inner tube 62 in various ways, in this embodiment, the lower surface of the exhaust moving plate 7 is a pressure receiving surface that can be acted by the pressure of the exhaust gas discharged from the first exhaust port 11, and the bottom of the exhaust moving plate 7 is provided with an elastic resetting structure 8, and the elastic resetting structure 8 makes the exhaust moving plate 7 have a tendency to move up along the inner surface of the exhaust inner tube 62. It can be seen that the movement of the exhaust moving plate 7 is acted by the gravity (G), the pressure (F2) of the inner container 1 received by the pressure receiving surface and the upward elastic force (F2) of the elastic reset structure 8, and the exhaust moving plate 7 can move up and down in a self-adaptive manner according to the change of the air pressure in the inner container 1, so that the exhaust speed can be adjusted in a self-adaptive manner according to the internal pressure of the inner container 1. Specifically, the method comprises the following steps: in the initial state, the exhaust transfer plate 7 is located below each ventilation port 621, the air pressure difference between the upper and lower regions of the exhaust transfer plate 7 is 0, that is, F2 is 0, G is F1, and the exhaust sleeve 6 is closed (that is, the variable exhaust passage is closed). When the gas to be discharged outside is less in the inner container 1 and the pressure of the inner container 1 is lower, the exhaust moving plate 7 is positioned below the air vent 621 of the inner air guiding cover, G is greater than F1+ F2, the variable exhaust channel is closed, and the gas in the inner container 1 is normally exhausted through the fixed exhaust channel, as shown in fig. 2 and 3. When the gas to be discharged outside in the liner 1 increases, the gas pressure of the liner 1 rises, when the gas pressure of the liner 1 increases to a certain value, G is less than F1+ F2, the exhaust moving plate 7 starts to move upwards, at this time, the part of each ventilation hole 621 on the exhaust inner tube 62 is positioned below the exhaust moving plate 7, the exhaust channel is opened, the area of the ventilation hole 621 positioned below the exhaust moving plate 7 is increased along with the further increase of the gas pressure of the liner 1, and the exhaust speed of the liner 1 is increased under the action of the exhaust fan 41 until the gas in the liner 1 is rapidly discharged, as shown in fig. 4. When the air pressure of the inner container 1 is reduced to a certain value, G is more than F1+ F2, the exhaust moving plate 7 starts to move downwards, the area of the air vent 621 positioned below the exhaust moving plate 7 is reduced, the exhaust speed of the inner container 1 is slowed down until the exhaust channel is closed, and the inner container 1 exhausts air only through the fixed exhaust channel.

Furthermore, a wind collecting cover 5 is covered on the first exhaust port 11 on the top surface of the inner container 1, an air collecting opening 51 is arranged on the top wall of the air collecting cover 5, the lower end of the inner exhaust pipe 62 is communicated with the air collecting opening 51, thus, the exhaust gas of the inner container 1 firstly enters the space enclosed by the wind collecting cover 5 and the top surface of the inner container 1, then enters the inner exhaust pipe 62 through the air collecting opening 51, thereby realizing the communication between the lower end of the inner exhaust pipe 62 and the first exhaust opening 11 of the liner 1, the elastic reset structure 8 comprises a pressure spring 81 vertically arranged, a first mounting seat 82 arranged on the lower surface of the exhaust moving plate 7 and a second mounting seat 83 arranged on the top surface of the liner 1, the upper and lower ends of the compressed spring 81 are respectively mounted on the first mounting seat 82 and the second mounting seat 83, so that on one hand, the compressed spring 81 is stably mounted, and on the other hand, the compressed spring 81 better supports the exhaust moving plate 7 to make the exhaust moving plate 7 have a tendency of moving upward. In this embodiment, the wind collection cover 5 has a square outer shape.

Further, if the first exhaust port 11 is designed to be a conventional single-hole structure, the water vapor discharging speed of the area below the first exhaust port 11 is higher than that of other areas of the inner container 1, and the food surface area corresponding to the first exhaust port 11 is too deeply colored, resulting in a problem of poor baking uniformity. Therefore, in this embodiment, preferably, the first exhaust opening 11 includes at least two small exhaust holes 13, and each small exhaust hole 13 is uniformly distributed on the top wall of the inner container 1 covered by the air collecting cover 5, and the number of the small exhaust holes 13 is four in this embodiment, so that the above-mentioned problem can be avoided by the above design, and the baking uniformity is improved. Preferably, in this embodiment, the first exhaust port 11 is opened at the middle of the top wall of the inner container 1, and the second exhaust port 12 is opened at the front end of the top wall of the inner container 1. The utility model discloses well first gas vent 11 is the structure that comprises a plurality of exhaust apertures 13, and second gas vent 12 is single open structure, and is visible, and the air current homogeneity of first gas vent 11 department is higher than second gas vent 12, carries out two gas vents simultaneously and can further promote the homogeneity of toasting as above sets up.

In this embodiment, the exhaust fan 41 includes a centrifugal impeller 411, and the first air inlet 21 is vertically opposite to the center of the centrifugal impeller 411. Thus, under the action of the negative pressure formed by the rotation of the centrifugal impeller 411, the exhaust gas entering the exhaust ring cavity 63 can quickly enter the exhaust channel 4 through the first air inlet 21, and because the upper end opening of the exhaust ring cavity 63 is annular, the suction effect can be formed under the action of the suction force of the centrifugal impeller 411, so that the exhaust speed is obviously improved.

Preferably, in this embodiment, the upper mounting plate 2 further has a second air inlet 22 located in the exhaust channel 4, and the second air inlet 22 is communicated with the mounting gap 3. Therefore, hot air in the mounting gap 3 can enter the exhaust channel 4 through the second air inlet 22 and is discharged outside, and the mounting gap 3 is communicated with other areas in the whole machine, so that the heat dissipation of the whole machine can be realized. Further, in the present embodiment, there are four second air inlets 22, and each of the second air inlets 22 is disposed opposite to the centrifugal impeller 411 in the vertical direction and circumferentially spaced apart from the first air inlet 21, so that rapid heat dissipation can be achieved in the interior of the whole machine under the action of negative pressure generated by rotation of the centrifugal impeller 411.

Claims (10)

1. An exhaust structure for baking cooking, which comprises an inner container (1), wherein an upper mounting plate (2) is arranged above the inner container (1), a mounting gap (3) is formed between the lower surface of the upper mounting plate (2) and the top surface of the inner container (1), an air deflector (40) is covered on the upper surface of the upper mounting plate (2), an exhaust channel (4) with an exhaust fan (41) is enclosed between the air deflector (40) and the upper surface of the upper mounting plate (2), the exhaust structure is characterized in that a first exhaust port (11) is formed in the top wall of the inner container (1), a first air inlet (21) positioned in the exhaust channel (4) is formed in the upper mounting plate (2), an exhaust sleeve (6) is vertically arranged in the mounting gap (3), the exhaust sleeve (6) comprises an exhaust inner pipe (62) and an exhaust outer pipe (61) sleeved outside the exhaust inner pipe (62), an exhaust ring cavity (63) is formed between the inner surface of the exhaust outer pipe (61) and the outer surface of the exhaust inner pipe (62) along the circumferential direction, the upper end of the exhaust inner pipe (62) is closed, the lower end of the exhaust inner pipe is communicated with the first exhaust port (11) in a fluid mode, the upper end of the exhaust ring cavity (63) is opened along the circumferential direction and communicated with the first air inlet (21) and the lower end of the exhaust ring cavity is closed, ventilation ports (621) which extend vertically are arranged on the pipe wall of the exhaust inner pipe (62) along the circumferential direction at intervals, and an exhaust moving plate (7) which can move up and down along the inner circumferential surface of the exhaust inner pipe (62) is transversely arranged in the exhaust inner pipe (62).

2. A grill cooking exhaust structure according to claim 1, wherein the lower surface of the exhaust moving plate (7) is a pressure receiving surface which can be acted on by the pressure of the exhaust gas discharged from the first exhaust port (11), and the bottom of the exhaust moving plate (7) is provided with an elastic return structure (8), and the elastic return structure (8) makes the exhaust moving plate (7) have a tendency to move upward along the inner surface of the exhaust duct (62).

3. A cooking exhaust structure as claimed in claim 2, wherein a wind collecting cover (5) is covered on the first exhaust port (11) on the top surface of the inner container (1), a wind collecting opening (51) is opened on the top wall of the wind collecting cover (5), the lower end of the inner exhaust pipe (62) is communicated with the wind collecting opening (51), the elastic restoring structure (8) comprises a vertically arranged compression spring (81), a first mounting seat (82) arranged on the lower surface of the exhaust moving plate (7) and a second mounting seat (83) arranged on the top surface of the inner container (1), and the upper end and the lower end of the compression spring (81) are respectively mounted on the first mounting seat (82) and the second mounting seat (83).

4. A grill cooking exhaust structure according to claim 3 wherein the first exhaust port (11) comprises at least two exhaust apertures (13), and each exhaust aperture (13) is uniformly distributed in the top wall of the inner container (1) and covered by the air-collecting hood (5).

5. An exhaust structure for grill cooking according to any one of claims 1 to 4 wherein the exhaust fan (41) is installed at an air inlet of the exhaust duct (4), and the exhaust fan (41) includes a centrifugal impeller (411), and the first air inlet (21) is vertically opposite to a center of the centrifugal impeller (411).

6. An exhaust structure for grill cooking according to claim 5, wherein the upper mounting plate (2) further has a second air inlet (22) formed therein in the exhaust passage (4), the second air inlet (22) communicating with the mounting gap (3).

7. A grill cooking exhaust structure according to claim 6, wherein the number of the second air inlets (22) is at least two, and each of the second air inlets (22) is disposed to be opposite to the centrifugal impeller (411) in the up-down direction and is circumferentially spaced apart from the first air inlet (21).

8. An exhaust structure for grill cooking according to claim 4, wherein the top wall of the inner container (1) further defines a second exhaust opening (12), and the upper mounting plate (2) further defines a third air inlet (23) located in the exhaust passage (4), the third air inlet (23) being communicated with the second exhaust opening (12) through a vertically extending air permeable tube (9).

9. A grill cooking exhaust structure according to claim 8, wherein the first exhaust port (11) is opened at a central portion of the top wall of the inner tub (1), and the second exhaust port (12) is opened at a front end of the top wall of the inner tub (1).

10. An oven having the exhaust structure for broiling cooking as claimed in any one of claims 1 to 9.

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