Cooking device

Abstract

The cooking device comprises a cavity, a mounting plate, a hot air assembly, a heating pipe, an air guide plate and a driving mechanism, the cavity is provided with a back plate, the mounting plate is arranged on the outer wall of the back plate in a covering mode and forms a hot air heating cavity, the hot air heating cavity comprises a first area and a second area, and the first area and the second area are both communicated with the cavity. The hot air assembly and the heating pipe are arranged in the first area, the second air outlet and part of the first air outlet are located in the first area, part of the first air outlet is located in the second area, the driving mechanism is arranged in the hot air heating cavity, and the air guide plate is rotationally arranged in the hot air heating cavity. The driving mechanism is used for driving the air guide plate to rotate so as to block or communicate the first area and the second area. Through rotation of the air guide plate, the air guide amount blown out of the left side and the right side of the rear back plate is different, the original temperature difference is balanced, and the temperatures of the left side and the right side of the cavity are close.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a cooking device. Background Technology

[0002] Many ovens nowadays are designed with hot air convection. To ensure even heat distribution from the heating element within the cavity, a back panel with air inlets and outlets is typically placed between the heating and cooking cavities. A hot air motor circulates the air, creating a convection airflow between the heating and cooking cavities to facilitate cooking. However, in actual use, uneven temperature distribution within the oven cavity often results in uneven browning, with some food being undercooked or overcooked. Utility Model Content

[0003] The purpose of this invention is to provide a cooking device to solve the technical problem of uneven temperature on the left and right sides of the oven cavity in the prior art.

[0004] This utility model provides a cooking device, including a cavity, a mounting plate, a hot air assembly, a heating element, a guide plate, and a driving mechanism. The cavity has a back plate, and the mounting plate covers the outer wall of the back plate to form a hot air heating cavity. The hot air heating cavity includes a first region and a second region, both of which are in communication with the cavity. The hot air assembly and the heating element are both located within the first region. The driving mechanism is located within the hot air heating cavity, and the guide plate is rotatably disposed within the hot air heating cavity. The driving mechanism is used to drive the guide plate to rotate to block or connect the first region and the second region.

[0005] As described above, the cooking device has a plurality of first air outlets and a plurality of second air outlets on the left and right sides of the back panel, respectively. The first air outlets and the second air outlets are connected to the hot air heating chamber (21) and the cavity. The second air outlets and part of the first air outlets are located in the first region, and part of the first air outlets are located in the second region.

[0006] As described above, the cooking device has an upper rotating shaft bracket and a lower rotating shaft bracket inside the hot air heating chamber. The upper rotating shaft bracket and the lower rotating shaft bracket are respectively fixedly connected to the upper and lower sides of the mounting plate. The upper rotating shaft bracket has a guide hole, and the upper end of the air guide plate has a guide shaft. The upper and lower ends of the air guide plate are respectively rotatably connected to the upper rotating shaft bracket and the lower rotating shaft bracket. The guide shaft rotates along the guide hole to block or connect the first area and the second area.

[0007] As described above, in the cooking device, the guide hole has a first end and a second end. When the guide shaft rotates to the first end, the air guide plate blocks the first region and the second region; when the guide shaft rotates to the second end, the first region and the second region are connected.

[0008] As described above, the upper end of the air guide plate is provided with an upper rotating shaft, the lower end of the air guide plate is provided with a lower rotating shaft, the upper rotating shaft bracket is provided with an upper rotating shaft hole, the lower rotating shaft bracket is provided with a lower rotating shaft hole, the upper rotating shaft passes through the upper rotating shaft hole, and the lower rotating shaft is rotatably inserted into the lower rotating shaft hole.

[0009] As described above, in the cooking device, the driving mechanism includes a drive motor, the drive motor is provided with an output shaft, and the upper shaft is connected to the output shaft.

[0010] As described above, the driving mechanism of the cooking device further includes a transmission rod, the upper end of which is drivenly connected to the output shaft, and the lower end of which is drivenly connected to the upper shaft.

[0011] As described above, the upper and lower ends of the transmission rod are respectively provided with a first limiting part and a first limiting hole, the output shaft is provided with a second limiting hole, and the upper shaft is provided with a second limiting part. The first limiting part is inserted into the second limiting hole, and the second limiting part is inserted into the first limiting hole.

[0012] In the cooking device described above, the guide hole is an arc-shaped hole, and the rotation center axis of the guide hole coincides with the center axis of the upper rotating shaft hole.

[0013] The cooking device described above includes a left temperature sensor and a right temperature sensor. The left temperature sensor is disposed on the left side of the cavity to detect the temperature of the left side region of the cavity, and the right temperature sensor is disposed on the right side of the cavity to detect the temperature of the right side region of the cavity.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects:

[0015] In this invention, the cooking device includes a cavity, a mounting plate, a hot air assembly, a heating element, a guide plate, and a driving mechanism. The cavity has a back plate, and the mounting plate covers the outer wall of the back plate to form a hot air heating chamber. The hot air heating chamber includes a first region and a second region, both of which are connected to the cavity. The hot air assembly and the heating element are both located in the first region. A second air outlet and part of the first air outlet are located in the first region, and part of the first air outlet is located in the second region. The driving mechanism is located inside the hot air heating chamber, and the guide plate is rotatably mounted in the hot air heating chamber. The driving mechanism is used to drive the guide plate to rotate to block or connect the first and second regions. By using the rotation of the guide plate to block or connect the first and second regions, the airflow from the left and right sides of the back plate is different, balancing the temperature difference caused by the difference in the cold end and shape of the heating element. This makes the temperatures on the left and right sides of the cavity similar, resulting in a relatively uniform temperature inside the cooking cavity. This effectively improves the problem of uneven heating, undercooked or overcooked food, providing consumers with a better user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the structure of a cooking apparatus according to an exemplary embodiment;

[0018] Figure 2 This is an exploded view of a partial structure of a cooking apparatus according to an exemplary embodiment;

[0019] Figure 3 This is a structural cross-sectional view of a cavity according to an exemplary embodiment;

[0020] Figure 4 This is a schematic diagram of the structure of the rear panel according to an exemplary embodiment;

[0021] Figure 5 This is an exploded view of the drive motor, air guide plate, lower shaft bracket and lower shaft support according to an exemplary embodiment;

[0022] Figure 6 This is a schematic diagram of the structure of an air guide plate according to an exemplary embodiment;

[0023] Figure 7 This is a schematic diagram of the upper rotating shaft bracket according to an exemplary embodiment;

[0024] Figure 8 This is a schematic diagram of the transmission rod according to an exemplary embodiment;

[0025] Figure 9 This is a schematic diagram of the structure of a drive motor according to an exemplary embodiment;

[0026] Figure 10 This is a schematic diagram of the air guide plate installation structure according to an exemplary embodiment;

[0027] Figure 11 This is a cross-sectional view of the air guide plate in the open state, according to an exemplary embodiment.

[0028] Figure 12 This is a structural cross-sectional view of the air guide plate in a blocking state, according to an exemplary embodiment.

[0029] Figure 13 This is a schematic diagram of the temperature control circuit of a cooking apparatus according to an exemplary embodiment.

[0030] The components are as follows: 1. Cavity; 11. Back panel; 111. Air inlet; 112. First air outlet; 113. Second air outlet; 2. Mounting plate; 21. Hot air heating chamber; 22. Upper rotating shaft bracket; 221. Guide hole; 222. Upper rotating shaft hole; 23. Lower rotating shaft bracket; 231. Lower rotating shaft hole; 3. Hot air assembly; 4. Heating element; 5. Air guide plate; 51. Upper rotating shaft; 511. Second limiting part; 52. Lower rotating shaft; 53. Guide shaft; 6. Drive mechanism; 61. Drive motor; 611. Output rotating shaft; 6111. Second limiting hole; 62. Transmission rod; 621. First limiting part; 622. First limiting hole; 7. Left temperature sensor; 8. Right temperature sensor. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0036] See Figures 1-12This utility model provides a cooking device, including a cavity 1, a mounting plate 2, a hot air assembly 3, a heating element 4, an air guide plate 5, and a driving mechanism 6. The cavity 1 has a back plate 11, on which at least one air inlet 111, several first air outlets 112, and several second air outlets 113 are provided. The first air outlets 112 and the second air outlets 113 are respectively located on the left and right sides of the back plate 11. The air inlet 111 is located between the first air outlets 112 and the second air outlets 113. The mounting plate 2 covers the outer wall of the back plate 11 and forms a hot air heating cavity 21. The air inlet 111, the first air outlets 112, and the second air outlets 113 are all located on the back plate 11. The hot air heating chamber 21 is connected to the cavity 1. The hot air assembly 3, the heating tube 4, and the air guide plate 5 are all disposed in the hot air heating chamber 21. The hot air heating chamber 21 includes a first region and a second region. The hot air assembly 3 and the heating tube 4 are located in the first region. The air guide plate 5 is rotatably disposed on the mounting plate 2 and is used to drive the air guide plate 5 to rotate to block or connect the first region and the second region. The air inlet 111, the second air outlet 113, and part of the first air outlet 112 are located in the first region, and part of the first air outlet 112 are located in the second region. The driving mechanism 6 is disposed on the mounting plate 2 and is used to drive the air guide plate 5 to rotate to block or connect the first region and the second region. By rotating the air guide plate 5 to block or connect the first and second areas, the airflow from the left and right sides of the back panel 11 is different. This balances the temperature difference caused by the difference in the cold end and shape of the heating element 4, making the temperatures on the left and right sides of the cavity 1 similar. This results in a relatively uniform temperature inside the cooking cavity 1, effectively improving the problems of uneven heating, undercooking, or overcooking of food, and providing consumers with a better user experience. The cooking device can be an oven, steam oven, or other cooking appliances. This embodiment and accompanying drawings use an oven as an example.

[0037] Specifically, there are multiple air inlets 111 arranged in a disc shape. The number of first air outlets 112 and second air outlets 113 are equal and symmetrically distributed on both sides of the back panel 11. The hot air assembly 3 is set in the area where the air inlets 111 are located. The hot air assembly 3 includes a fan and a motor fixed to the outside of the mounting plate 2. The heating element 4 is coiled on the outer periphery of the fan. The rotating shaft of the motor extends into the hot air heating chamber 21 and is connected to the fan to drive the fan to rotate and blow the hot air generated by the heating element 4 to both sides. Finally, the hot air enters the interior of the cavity 1 from the first air outlet 112 and the second air outlet 113 on both sides to achieve high-temperature cooking.

[0038] Furthermore, the hot air heating chamber 21 is provided with an upper rotating shaft bracket 22 and a lower rotating shaft bracket 23. The upper rotating shaft bracket 22 and the lower rotating shaft bracket 23 are respectively fixedly connected to the upper and lower sides of the mounting plate 2. The upper rotating shaft bracket 22 is provided with a guide hole 221. The upper end of the air guide plate 5 is provided with a guide shaft 53. The upper and lower ends of the air guide plate 5 are respectively rotatably connected to the upper rotating shaft bracket 22 and the lower rotating shaft bracket 23. The guide shaft 53 is slidably disposed in the guide hole 221.

[0039] Specifically, the upper pivot bracket 22 and the lower pivot bracket 23 are both fixedly connected to the side wall of the mounting plate 2 by bolts, and both the upper pivot bracket 22 and the lower pivot bracket 23 are 7-shaped structures.

[0040] Furthermore, the guide hole 221 has a first end and a second end. When the guide shaft 53 rotates to the first end, the air guide plate 5 blocks the first region and the second region; when the guide shaft 53 rotates to the second end, the first region and the second region are connected.

[0041] Furthermore, the upper end of the air guide plate 5 is provided with an upper rotating shaft 51, the lower end of the air guide plate 5 is provided with a lower rotating shaft 52, the upper rotating shaft bracket 22 is provided with an upper rotating shaft hole 222, the lower rotating shaft bracket 23 is provided with a lower rotating shaft hole 231, the upper rotating shaft 51 passes through the upper rotating shaft hole 222, and the lower rotating shaft 52 is rotatably inserted into the lower rotating shaft hole 231.

[0042] Furthermore, the guide hole 221 is an arc-shaped hole, and the rotation center axis of the guide hole 221 coincides with the center axis of the upper rotating shaft hole 222. The air guide plate 5 can rotate relative to the upper rotating shaft support 22 and the lower rotating shaft support 23 with the upper rotating shaft 51 as the rotating shaft, so that the air guide plate 5 can achieve the blocking state and the opening state, thereby realizing the blocking and conduction of the first area and the second area.

[0043] Furthermore, the drive mechanism 6 includes a drive motor 61, which is a synchronous motor. The drive motor 61 has an output shaft 611, and the upper shaft 51 is connected to the output shaft 611 to drive the air guide plate 5 to rotate together with the output shaft 611 of the drive motor 61. Specifically, the top of the mounting plate 2 has a horizontal bend, the drive motor 61 is fixedly connected to the horizontal bend, and the output shaft 611 extends into the interior of the hot air heating chamber 21.

[0044] Furthermore, the drive mechanism 6 also includes a transmission rod 62, the upper end of which is drivenly connected to the output shaft 611, and the lower end of which is drivenly connected to the upper shaft 51. The upper and lower ends of the transmission rod 62 are respectively provided with a first limiting part 621 and a first limiting hole 622. The output shaft 611 is provided with a second limiting hole 6111, and the upper shaft 51 is provided with a second limiting part 511. The first limiting part 621 is inserted into the second limiting hole 6111, and the second limiting part 511 is inserted into the first limiting hole 622. Specifically, the transmission rod 62 has a hollow structure, the first limiting hole 622 and the second limiting hole 6111 are both straight holes, the first limiting part 621 and the second limiting part 511 are both straight structures, the upper end of the transmission rod 62 is sleeved on the output shaft 611 of the drive motor 61, and the upper shaft 51 is inserted into the lower end of the transmission rod 62. When the output shaft 611 of the drive motor 61 rotates, it can drive the transmission rod 62 and the air guide plate 5 to rotate together, thereby realizing the state switching of the air guide plate 5.

[0045] Furthermore, the lower rotating shaft bracket 23 is provided with a lower rotating shaft hole 231, and the lower rotating shaft 52 is rotatably inserted into the lower rotating shaft hole 231. The air guide plate 5 also includes a rotating shaft spacer sleeve, which is sleeved on the lower rotating shaft 52 and abuts against the top of the lower rotating shaft bracket 23. The rotating shaft spacer sleeve is used to reduce friction and wear between the lower rotating shaft 52 and the lower rotating shaft bracket 23, and at the same time realizes the positioning and guiding function of the lower rotating shaft 52.

[0046] Furthermore, the cooking device includes a left temperature sensor 7 and a right temperature sensor 8. The left temperature sensor 7 is installed on the top left side of the cavity 1, and the right temperature sensor 8 is installed on the top right side of the cavity 1. The left temperature sensor 7 is used to detect the temperature of the left side region of the cavity 1, and the right temperature sensor 8 is used to detect the temperature of the right side region of the cavity 1. The left temperature sensor 7 and the right temperature sensor 8 transmit the detected temperatures to the central control module for data comparison. When the temperature difference between the left temperature sensor 7 and the right temperature sensor 8 is greater than the set value, the central control module issues a command to activate the synchronous motor, driving the air guide plate 5 to rotate until the guide shaft 53 rotates to the first end of the guide hole 221. At this time, the air guide plate 5 is in a blocking state, perpendicular to the back panel 11 and blocking the first and second areas, thus making the heat blown into the left and right sides of the cavity 1 different, balancing the temperature difference caused by the difference in the cold end and shape of the heating tube 4, making the temperature on the left and right sides of the cavity 1 closer, and the food is heated more evenly. When the temperatures detected by the left temperature sensor 7 and the right temperature sensor 8 tend to be equal, the central control module issues another command to activate the synchronous motor, driving the air guide plate 5 to rotate in the opposite direction until the guide shaft 53 rotates to the second end of the guide hole 221. At this time, the air guide plate 5 is in an open state, and the first and second areas are connected. This cycle is repeated to ensure that the temperature on the left and right sides of the cavity 1 is relatively close.

[0047] The schematic diagram of the temperature control circuit of this utility model is as follows: Figure 13 As shown, U1 is the left temperature sensor 7, U2 is the right temperature sensor 8, and the output of the temperature control circuit is connected to the synchronous motor used to drive the air guide plate to rotate.

[0048] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit the scope of protection of the utility model.

Claims

1. A cooking apparatus, characterized in that, The device includes a cavity (1), a mounting plate (2), a hot air assembly (3), a heating element (4), a guide plate (5), and a driving mechanism (6). The cavity (1) has a back plate (11). The mounting plate (2) covers the outer wall of the back plate (11) and forms a hot air heating cavity (21). The hot air heating cavity (21) includes a first region and a second region. Both the first region and the second region are connected to the cavity (1). The hot air assembly (3) and the heating element (4) are both located in the first region. The driving mechanism (6) is located inside the hot air heating cavity (21). The guide plate (5) is rotatably disposed in the hot air heating cavity (21). The driving mechanism (6) is used to drive the guide plate (5) to rotate to block or connect the first region and the second region.

2. The cooking apparatus according to claim 1, characterized in that, The back panel (11) has several first air outlets (112) and several second air outlets (113) on its left and right sides respectively. The first air outlets (112) and the second air outlets (113) are connected to the hot air heating chamber (21) and the cavity (1). The second air outlets (113) and part of the first air outlets (112) are located in the first area, and part of the first air outlets (112) are located in the second area.

3. The cooking apparatus according to claim 2, characterized in that, The hot air heating chamber (21) is provided with an upper rotating shaft bracket (22) and a lower rotating shaft bracket (23). The upper rotating shaft bracket (22) and the lower rotating shaft bracket (23) are respectively fixedly connected to the upper and lower sides of the mounting plate (2). The upper rotating shaft bracket (22) is provided with a guide hole (221). The upper end of the air guide plate (5) is provided with a guide shaft (53). The upper and lower ends of the air guide plate (5) are respectively rotatably connected to the upper rotating shaft bracket (22) and the lower rotating shaft bracket (23). The guide shaft (53) rotates along the guide hole (221) to block or connect the first area and the second area.

4. The cooking apparatus according to claim 3, characterized in that, The guide hole (221) has a first end and a second end. When the guide shaft (53) rotates to the first end, the air guide plate (5) blocks the first region and the second region. When the guide shaft (53) rotates to the second end, the first region and the second region are connected.

5. The cooking apparatus according to claim 4, characterized in that, The upper end of the air guide plate (5) is provided with an upper rotating shaft (51), the lower end of the air guide plate (5) is provided with a lower rotating shaft (52), the upper rotating shaft bracket (22) is provided with an upper rotating shaft hole (222), the lower rotating shaft bracket (23) is provided with a lower rotating shaft hole (231), the upper rotating shaft (51) passes through the upper rotating shaft hole (222), and the lower rotating shaft (52) is rotatably inserted into the lower rotating shaft hole (231).

6. The cooking apparatus according to claim 5, characterized in that, The drive mechanism (6) includes a drive motor (61), and the drive motor (61) is provided with an output shaft (611). The upper shaft (51) is connected to the output shaft (611).

7. The cooking apparatus according to claim 6, characterized in that, The drive mechanism (6) further includes a transmission rod (62), the upper end of which is driven to the output shaft (611), and the lower end of which is driven to the upper shaft (51).

8. The cooking apparatus according to claim 7, characterized in that, The transmission rod (62) has a first limiting part (621) and a first limiting hole (622) at its upper and lower ends, respectively. The output shaft (611) has a second limiting hole (6111), and the upper shaft (51) has a second limiting part (511). The first limiting part (621) is inserted into the second limiting hole (6111), and the second limiting part (511) is inserted into the first limiting hole (622).

9. The cooking apparatus according to claim 6, characterized in that, The guide hole (221) is an arc-shaped hole, and the rotation center axis of the guide hole (221) coincides with the center axis of the upper rotating shaft hole (222).

10. The cooking apparatus according to claim 6, characterized in that, The cooking device includes a left temperature sensor (7) and a right temperature sensor (8). The left temperature sensor (7) is located on the left side of the cavity (1) to detect the temperature of the left side region of the cavity (1), and the right temperature sensor (8) is located on the right side of the cavity (1) to detect the temperature of the right side region of the cavity (1).

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