CN212186212U

CN212186212U - Double-fan oven inner container structure and oven with same

Info

Publication number: CN212186212U
Application number: CN201921884626.8U
Authority: CN
Inventors: 郑德华
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-12-22
Anticipated expiration: 2029-11-04

Abstract

The utility model relates to an inner bag structure of double fan oven, including the inner bag, set up hot-blast baffle in the inner bag, on it on the back of hot-blast baffle, the baffle is transversely installed to the middle part level of lower air intake, on, air outlet in air outlet and the second has been seted up respectively on the face of the hot-blast baffle between the lower air intake, and should be first, the air outlet all is located the below of above-mentioned baffle and is in same height basically in the second, the fan blade outer end of lower air heater is air outlet to second in the motion orbit of neighbouring this high department is from first well air outlet, wherein the air outlet is in its baffle of keeping away from the vertical being provided with of side of first well air outlet in the second, this baffle is formed with the contained angle with hot-blast baffle's rear surface. The utility model discloses an air-out direction of air heater under this baffle changes for the local air-out redirecting of air heater blows in the inner bag from the air outlet in the second down, thereby increases the amount of wind of air outlet in the second, compensates the positive air output of hot-blast baffle the latter half.

Description

Double-fan oven inner container structure and oven with same

Technical Field

The utility model relates to a double fan oven field especially relates to a double fan oven inner bag structure and have oven of this structure.

Background

In an air heater system of the oven, the air heater mainly blows out air heated by the heating pipe from an air outlet of the hot air baffle, and the hot air returns to the back of the oven from an air inlet of the hot air baffle after forming internal circulation in the inner container of the oven. At present, the oven in the market is mainly single fan, and the air heater is installed on the backplate of inner bag, and annular back heating pipe uses the motor shaft of air heater as the centre of a circle to install in the periphery of air heater, and hot-blast baffle is fixed in the inboard of inner bag backplate, covers circulating fan and back heating pipe, forms hot-blast room in hot-blast baffle. When the air heater and the back heating pipe work, the pressure at the center of the circulating fan is low, the pressure at the periphery of the circulating fan is high, the circulating fan sucks cold air from the air inlet of the center area, and the cold air is heated by the back heating pipe to become hot air which flows to the inner container from the air outlet. The hot air chamber sucks cold air from the center and blows hot air to the periphery, circulating hot air is formed in the inner container of the oven, and forced convection heat exchange is carried out on food on the baking tray in the inner container. The single-fan oven has the defects that the air quantity of an air outlet is insufficient, hot air cannot reach a door body, and the problem of uneven coloring of baked food is solved.

For solving this problem, the oven that adopts double fan has appeared on the market at present, and two air heaters set up from top to bottom in this kind of oven, and the back of hot-blast baffle sets up the baffle for each air heater is in independent hot-blast room respectively, compares with single fan oven, and the circulating air volume of double fan oven air outlet is enough big, and hot-blast can reach the door body and return air from the center again, covers all food surfaces. For example, the oven double-fan system disclosed in the chinese utility model patent No. ZL201721918690.4 (No. CN 207662174U). However, in the current dual-fan oven, under the dual-layer baking mode, the air outlet from the front of the lower layer is insufficient due to the influence of the baking tray, so that the uniformity of the temperature field of the lower layer is poor.

Disclosure of Invention

The utility model aims to solve the first technical problem that provides a double fan oven inner bag structure that lower floor's temperature field homogeneity is good under double-deck roast mode to prior art.

The second technical problem to be solved by the present invention is to provide an oven with the above inner container structure, which has a good baking effect.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a liner structure of a double-fan oven comprises a liner, wherein a hot air baffle with an air inlet is arranged in the liner, a hot air chamber is formed between the hot air baffle and a back plate of the liner, the air inlet comprises an upper air inlet and a lower air inlet, the upper air inlet and the lower air inlet are arranged at intervals up and down along the middle part of the hot air baffle, an upper hot air blower and a lower hot air blower which correspond to the upper air inlet and the lower air inlet respectively are arranged in the hot air chamber, a partition plate is horizontally and transversely arranged at the middle part of the upper air inlet and the lower air inlet on the back surface of the hot air baffle, the liner structure is characterized in that a first middle air outlet and a second middle air outlet are respectively arranged on the surface of the hot air baffle between the upper air inlet and the lower air inlet, the first middle air outlet and the second middle air outlet are both positioned below the partition plate and are basically positioned at the same height, the motion trail of the outer end of a fan blade of the lower hot air blower at the position adjacent to the height The edge is vertically provided with a baffle, and an included angle is formed between the baffle and the rear surface of the hot air baffle.

In order to blow more air out of the lower air heater from the second middle air outlet, the included angle between the baffle and the rear surface of the hot air baffle is smaller than or equal to 90 degrees.

Further, the baffle is perpendicular to the rear surface of the hot air baffle. Therefore, the air outlet of the lower air heater can be blocked to the greatest extent, so that more air flows change the direction and are blown out from the second middle air outlet.

The air outlet direction of the lower air heater is changed for better blocking the air outlet of the lower air heater, the front side edge of the baffle is abutted against the rear surface of the hot air baffle, a notch is formed in the rear side edge, the notch is arranged to prevent the air outlet of the lower air heater from being blocked in a large area, and the uniformity of a temperature field in the whole inner container is guaranteed.

Furthermore, the upper end of the baffle extends upwards to the upper part of the second middle air outlet and is adjacent to the lower surface of the partition plate, and the notch is positioned at the upper part of the baffle and above the second middle air outlet. Therefore, the air quantity blown out from the second middle air outlet can be increased to the greatest extent on the basis of avoiding blocking the air outlet of the lower air heater by a large area.

Further, the notch extends upward to the highest position of the baffle. Thereby can avoid blocking the air-out of air heater down by a large scale better.

In order to ensure that the baffle can be stably arranged, the baffle further comprises a connecting plate which is fixed on the lower surface of the partition plate and is integrated with the baffle.

Further, preferably, one end of the connecting plate is connected with the front end of the baffle to form an integral piece.

Furthermore, the area of the second middle air outlet is smaller than that of the first middle air outlet. If the opening of the second middle air outlet is large, most air quantity is blown to one side of the second middle air outlet along the air outlet direction of the lower air heater after the blocking of the baffle plate, and the smaller opening of the second middle air outlet can enable more air quantity to be blown to the front direction of the hot air baffle plate under the blocking of the baffle plate, so that the air is supplied to the front air outlet of the lower half part of the hot air baffle plate to the maximum extent.

Furthermore, the top air outlet is formed in the top wall of the hot air baffle, and the bottom air outlet is formed in the bottom wall of the hot air baffle, so that the air output of the hot air baffle can be compensated, and the baking requirement is met.

The technical solution adopted to solve the second technical problem is as follows: a double-fan oven with the inner container structure is provided.

Compared with the prior art, the utility model has the advantages of: under the double-layer baking mode of the double-fan oven, two baking trays are arranged up and down, and under the influence of the upper baking tray, the lower half part of the hot air baffle plate has insufficient front air outlet, so that the uniformity of a temperature field at the lower baking tray is poor, and the baking effect of food on the lower baking tray is influenced, therefore, the utility model discloses a first middle air outlet and a second middle air outlet are respectively arranged below the baffle plate, and the first middle air outlet and the second middle air outlet are arranged along the left and right sides of the air outlet direction of the lower hot air blower, so as to ensure that the air outlet of the lower hot air blower is blown out from the first middle air outlet as much as possible, and the second middle air outlet is vertically provided with a baffle plate at the side far away from the first middle air outlet, the baffle plate forms an included angle with the rear surface of the hot air baffle plate, so that the air outlet direction of the lower hot air blower is changed, thereby increase the amount of wind of air outlet in the second, compensate the positive air output of hot-blast baffle the latter half, promote the temperature field homogeneity of lower floor overware department under the double-deck roast mode.

Drawings

Fig. 1 is a schematic structural view of a dual-fan oven according to an embodiment of the present invention;

fig. 2 is a schematic partial structural view of a dual-fan oven according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a hot air baffle plate in an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic structural view in another direction of fig. 3.

Detailed Description

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

As shown in fig. 1 to 5, a dual-fan oven includes an inner container 1, an upper heating pipe 21 is installed on an inner top surface of the inner container 1, a lower heating pipe (not shown) is installed at a bottom of the inner container 1, a hot air baffle 3 with an air inlet is installed in the inner container 1, a hot air chamber (not shown) is formed between the hot air baffle 3 and a back plate of the inner container 1, the air inlet includes an upper air inlet 31 and a lower air inlet 32, the upper and

lower air inlets

31 and 32 are both arranged at an upper and a lower interval along a middle portion of the hot air baffle 3, an upper hot air blower 41 and a lower hot air blower 42 corresponding to the upper and

lower air inlets

31 and 32 are installed in the hot air chamber, and a partition plate 5 is horizontally fixed at a middle portion of the upper and

lower air inlets

31 and 32 on a back surface of the hot air baffle 3, so as to partition the hot air chamber. The back heating pipe 22 is respectively disposed around the peripheries of the upper and

lower air heaters

41 and 42, the rotation direction of the fan blades of the upper air heater 41 can be clockwise or counterclockwise, and the rotation direction of the lower air heater 42 can also be clockwise or counterclockwise, in this embodiment, the fan blades of the upper and

lower air heaters

41 and 42 both rotate clockwise. Side brackets 7 are respectively arranged on the left inner side wall and the right inner side wall of the inner container 1, and two baking trays 8 are respectively placed on the second layer and the fourth layer in a double-layer baking mode, as shown in fig. 1.

Further, as shown in fig. 3, a first middle air outlet 33 and a second middle air outlet 34 are respectively disposed on the surface of the hot air baffle 3 between the upper and

lower air inlets

31, 32, and the first and second

middle air outlets

33, 34 are both located below the partition board 5 and are located at substantially the same height, and the movement locus of the outer end of the fan blade of the lower hot air blower 42 at the position adjacent to the height is from the first middle air outlet 33 to the second middle air outlet 34. In this embodiment, because the lower hot air blower 42 rotates clockwise, the first middle air outlet 33 is disposed at the left side of the second middle air outlet 34, wherein the baffle 61 is vertically disposed at a side of the second middle air outlet 34 away from the first middle air outlet 33 (in this embodiment, the right side of the second middle air outlet 34), and an included angle is formed between the baffle 61 and the rear surface of the hot air baffle 3, as shown in fig. 4. Under the double-layer baking mode of the double-fan oven, two baking trays 8 are arranged up and down, and under the influence of the upper baking tray 8, the lower half part of the hot air baffle plate 3 is insufficient in front air outlet, so that the uniformity of the temperature field at the lower baking tray 8 is not good, and the baking effect of food on the lower baking tray 8 is affected, therefore, the utility model is provided with a first middle air outlet 33 and a second middle air outlet 34 below the baffle plate 5, and the first middle air outlet 33 and the second middle air outlet 34 are arranged along the air outlet direction of the lower hot air blower 42, so as to ensure that the air outlet of the lower hot air blower 42 is blown out from the first middle air outlet 33 and the second middle air outlet 34 as much as possible, and a baffle plate 61 is vertically arranged at the side edge of the second middle air outlet 34 far away from the first middle air outlet 33, and the baffle plate 61 forms an included angle with the rear surface of the hot air baffle, the local air outlet of the lower air heater 42 changes the direction and blows into the inner container 1 from the second middle air outlet 34, so that the air quantity of the second middle air outlet 34 is increased, the front air outlet quantity of the lower half part of the hot air baffle 3 is compensated, and the temperature field uniformity of the lower-layer baking tray 8 in the double-layer baking mode is promoted. In this embodiment, the upper edge of each of the middle outlets extends horizontally and rearwardly to form the hot air blocking strip 35, the hot air blocking strip 35 can prevent the air from being blown upward directly and being unable to be blown to the upper layer of the food corresponding to the baking tray 8 in a large amount, and each hot air blocking strip 35 can guide the air from the middle outlet so that the air can be blown forward through the food corresponding to the baking tray 10. In addition, the top wall of the hot air baffle 3 is provided with a top air outlet 43, and the bottom wall of the hot air baffle 3 is provided with a bottom air outlet 44, so that the air output of the hot air baffle 3 can be compensated, and the baking requirement can be ensured.

In this embodiment, the baffle 61 is disposed along the right edge of the second middle air outlet 34, so that more air from the lower air heater 42 is blown out from the second middle air outlet 34, an included angle between the baffle 61 and the rear surface of the hot air baffle 3 is disposed facing the wind, and the included angle between the baffle 61 and the rear surface of the hot air baffle 3 is smaller than or equal to 90 degrees. Preferably, the baffle 61 is disposed perpendicular to the rear surface of the hot air baffle 3, so as to block the outlet air of the lower hot air blower 42 to the maximum extent, so that more air flow is redirected to be blown out from the second middle air outlet 34.

Further, in order to better block the air outlet of the lower air heater 42 and change the air outlet direction, the front side edge of the baffle 61 abuts against the rear surface of the hot air baffle 3, the rear side edge is provided with a notch 611, and the notch 611 is arranged to avoid blocking the air outlet of the lower air heater 42 in a large area, so as to ensure the uniformity of the temperature field inside the whole inner container 1. Specifically, in the present embodiment, the front edge of the baffle 61 abuts against the rear surface of the hot air baffle 3 so as to better block the outlet air of the lower air heater 42 and change the outlet air direction. The rear side edge of the baffle 61 is provided with a notch 611, so that the air outlet of the lower air heater 42 is prevented from being blocked in a large area by the notch 611, and the uniformity of the temperature field in the whole inner container 1 is ensured. Still further, the upper end of the baffle 61 extends upward to above the second middle air outlet 34 and is adjacent to the lower surface of the partition 5, and the notch 611 is located at the upper portion of the baffle 61 and above the second middle air outlet 34. Therefore, the air volume blown out from the second middle air outlet 34 can be increased to the greatest extent on the basis of avoiding blocking the air outlet of the lower air heater 42 by a large area. Preferably, the notch 611 extends upward to the highest position of the baffle 61, so as to better avoid blocking the air of the lower air heater 42 for a large area.

In this embodiment, in order to enable the baffle 61 to be stably disposed, the baffle further includes a connecting plate 62, and the connecting plate 62 is fixed on the lower surface of the partition plate 5 and is integrated with the baffle 61. In order to stabilize the internal structure of the baffle 61 and the connecting plate 62, one end of the connecting plate 62 is connected to the front end of the baffle 61 to form a single piece.

In this embodiment, the area of the second middle air outlet 34 is smaller than that of the first middle air outlet 33. If the opening of the second middle outlet 34 is large, most of the air volume is blown to one side of the second middle outlet 34 along the air outlet direction of the lower air heater 42 after being blocked by the baffle 61, and the opening of the second middle outlet 34 is small, so that more air volume can be blown to the front direction of the hot air baffle 3 under the blocking of the baffle 61, thereby maximally supplying the front air outlet of the lower half part of the hot air baffle 3.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims

1. A double-fan oven liner structure comprises a liner (1), a hot air baffle (3) with an air inlet is arranged in the liner (1), a hot air chamber is formed between the hot air baffle (3) and a back plate of the liner (1), the air inlet comprises an upper air inlet (31) and a lower air inlet (32), the upper air inlet (31) and the lower air inlet (32) are arranged at intervals up and down along the middle part of the hot air baffle (3), an upper hot air fan (41) and a lower hot air fan (42) which correspond to the upper air inlet (31) and the lower air inlet (32) respectively are arranged in the hot air chamber, a partition plate (5) is horizontally and transversely arranged at the middle part of the upper air inlet (31) and the lower air inlet (32) on the back surface of the hot air baffle (3), and is characterized in that a first middle air outlet (33) and a second middle air outlet (34) are respectively arranged on the surface of the hot air baffle (3) between the upper air inlet (31) and, the first middle air outlet (33) and the second middle air outlet (34) are both positioned below the partition plate (5) and are basically positioned at the same height, the movement track of the outer end of the fan blade of the lower hot air blower (42) at the position close to the height is from the first middle air outlet (33) to the second middle air outlet (34), a baffle plate (61) is vertically arranged on the side edge of the second middle air outlet (34) far away from the first middle air outlet (33), and an included angle is formed between the baffle plate (61) and the rear surface of the hot air baffle plate (3).

2. The double fan oven liner structure as claimed in claim 1, wherein the angle between the baffle (61) and the rear surface of the hot air baffle (3) is less than or equal to 90 degrees.

3. The dual fan oven liner structure as claimed in claim 2, wherein the baffle (61) is disposed perpendicular to the rear surface of the hot air baffle (3).

4. The double fan oven liner structure as claimed in claim 3, wherein the front side edge of the baffle (61) is against the rear surface of the hot air baffle (3), and the rear side edge has a notch (611).

5. The double fan oven liner structure as claimed in claim 4, wherein the upper end of the baffle (61) extends upward above the second middle air outlet (34) and adjacent to the lower surface of the partition (5), and the notch (611) is located at the upper portion of the baffle (61) and above the second middle air outlet (34).

6. The dual fan oven liner structure of claim 5, wherein said notch (611) extends up to the highest point of the baffle (61).

7. The double fan oven liner structure as claimed in claim 1, further comprising a connecting plate (62), wherein the connecting plate (62) is fixed to the lower surface of the partition (5) and is formed integrally with the baffle (61).

8. The double fan oven liner structure as claimed in claim 7, wherein one end of the connecting plate (62) is connected to the front end of the baffle plate (61) to form a single body.

9. The double-fan oven liner structure as claimed in any one of claims 1 to 8, wherein the area of the second middle air outlet (34) is smaller than that of the first middle air outlet (33).

10. The double-fan oven liner structure as claimed in any one of claims 1 to 8, wherein the top wall of the hot air baffle (3) is provided with a top air outlet (43) and the bottom wall is provided with a bottom air outlet (44).

11. A dual fan oven having a liner structure as claimed in any one of claims 1 to 10.