Household appliance with double inner tank

Abstract

A household appliance with a double inner liner comprises a box body, an upper inner liner and a lower inner liner are installed in the box body, an upper door body is installed on the front side of the upper inner liner, and a lower door body is installed on the front side of the lower inner liner, and the characteristic is that an air outlet is provided between the upper door body and the lower door body, and an exhaust device capable of exhausting airflow to the air outlet is installed inside the box body. The advantage of the present invention is that the household appliance with a double inner liner is provided with an air outlet between the upper door body and the lower door body, and an exhaust device capable of exhausting airflow to the air outlet is installed inside the box body. During the operation of the whole machine, the steaming mode is turned on in the lower inner liner. When the lower door body is opened, the steam in the lower inner liner will be dispersed outwardly, and the airflow discharged from the air outlet by the exhaust device exerts a horizontal outward force on the steam, and the steam is discharged horizontally to a certain distance, which can prevent the steam from directly rising to the upper door body and condensing into condensed water when the door is opened, thereby not affecting the user experience and the next operation.

Description

Technical Field

[0001] The invention relates to a household appliance, in particular to a household appliance with double inner containers. Background Art

[0002] At present, in order to save space and improve user experience, a steamer with double inner tanks has been disclosed in the prior art. For example, the Chinese utility model patent No. 201621220239.0 (authorization announcement No. 206675401 U) discloses a steamer, which includes a box body, in which at least a first inner tank and a second inner tank are arranged, and an exhaust system is also arranged on the box body, wherein a return steam pipe is arranged between the exhaust joints of the first inner tank and the second inner tank, and a first solenoid valve for controlling the conduction or closing of the return steam pipe is arranged on the return steam pipe, and a second solenoid valve for controlling the conduction or closing of the exhaust pipe is arranged on the exhaust pipe of the first inner tank; the air guide cover is arranged on the inner side of the exhaust port and the air guide channel formed by it is opposite to the exhaust port, and the steam outlets of the exhaust pipes are all collected in the air guide channel of the air guide cover, and the air outlet of the heat dissipation fan is opposite to the above-mentioned air guide channel and the exhaust port in sequence. Although the steamer can control the solenoid valve so that the exhaust pipe of the first inner pot is closed and the return pipe is opened, the steam discharged from the exhaust joint of the first inner pot enters the second inner pot, thereby effectively reducing the steam discharge, which is conducive to reducing the condensed water on the door body. However, when the lower door body is opened after cooking, the high-temperature steam in the lower inner pot will dissipate outward, and the exhausted steam will rise upward and adhere to the upper door body to form condensed water. In particular, for cooking equipment with an operation panel installed on the upper door body, the steam will also adhere to the operation panel to form condensed water, thereby affecting the user's next operation and reducing the user experience. In summary, further improvements need to be made to the existing household appliance structure with double inner pots. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a household appliance with double inner tanks which can effectively prevent high-temperature steam from flowing upward when the lower door is opened, in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: the household appliance with double inner liner includes a box body, an upper inner liner and a lower inner liner are installed in the box body, an upper door body is installed on the front side of the upper inner liner, and a lower door body is installed on the front side of the lower inner liner. It is characterized in that: an air outlet is provided between the upper door body and the lower door body, and an exhaust device capable of discharging airflow to the air outlet is installed inside the box body.

[0005] Preferably, an operation panel is installed on the upper door body. In this way, under the action of the exhaust device, the steam discharged from the lower inner tank is not conducive to condensation on the operation panel, and will not affect the user's operation.

[0006] The exhaust device can have a variety of structures. Preferably, the exhaust device includes a mounting plate, a front air guide plate, a rear air guide plate and a fan assembly. The front air guide plate and the rear air guide plate are installed on the mounting plate and are located above the mounting plate. An exhaust channel is formed between the front air guide plate and the mounting plate. The front air guide plate and the front end of the mounting plate form an exhaust port facing the air outlet. An air intake channel connected to the exhaust channel is formed between the rear air guide plate and the mounting plate. The fan assembly is installed on the rear air guide plate.

[0007] The fan assembly can have a variety of installation structures. Preferably, the fan assembly includes a fan bracket, a blade fan and fan blades. The fan bracket is installed on the rear air guide plate. An air inlet connected to the air inlet channel is formed between the fan bracket and the rear air guide plate. The blade fan is installed on the fan bracket, and the fan blades are installed on the blade fan.

[0008] In order to increase the exhaust speed of the fan assembly, the center of the fan blade is a mounting hole, and spiral blades that spread outward are evenly distributed around the mounting hole. In addition, the inner side of the spiral blade forms an air intake area, and the outer side of the spiral blade forms an air outlet area.

[0009] Further preferably, the exhaust direction of the exhaust port is horizontal and forward. In this way, the wind discharged from the air outlet between the upper door body and the lower door body can exert a horizontal outward force on the steam discharged from the lower inner tank, and discharge the steam horizontally to a certain distance, thereby more effectively preventing the steam from directly rising to the upper door body and the operation panel and condensing into condensed water when the lower door body is opened.

[0010] In order to split the airflow discharged from the rear air guide plate to improve the uniformity of the airflow at the exhaust port, a splitter wall is formed on the inner wall of the front air guide plate.

[0011] Preferably, a heating plate is installed at the bottom of the upper inner tank, and the heating plate is located above the front air guide plate. In this way, under the action of the fan blade, the air in the space enclosed by the mounting plate and the front air guide plate and the rear air guide plate is cold air, thereby preventing the heat dissipated from the upper surface of the lower inner tank from entering the heating plate at the bottom of the upper inner tank, and not affecting the normal operation of the heating plate.

[0012] Further preferably, a temperature controller for real-time monitoring of the temperature of the heating disk is installed on the heating disk.

[0013] In order to enable the lower inner pot to have a roasting function, a heating tube for heating the lower inner pot is installed around the lower inner pot.

[0014] In order to enable the lower inner pot to have a steaming function, the lower inner pot has a steam inlet, and a steam generating device connected to the steam inlet is installed in the box.

[0015] Compared with the prior art, the advantages of the present invention are as follows: the household appliance with double inner tanks is provided with an air outlet between the upper door body and the lower door body, and an exhaust device capable of exhausting airflow to the air outlet is installed inside the box body. During the operation of the whole machine, the lower inner tank is turned on the steaming mode. When the lower door body is opened, the steam in the lower inner tank will be dispersed outwards, and the airflow discharged from the air outlet by the exhaust device exerts a horizontal outward force on the steam, exhausting the steam horizontally to a certain distance, which can prevent the steam from directly rising to the upper door body and condensing into condensed water when the door is opened, thereby not affecting the user experience. In addition, since the cooking device usually installs the operation panel on the upper door body, it can also prevent the steam from condensing on the operation panel, thereby avoiding affecting the user's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 A schematic structural diagram of another angle of an embodiment of the present invention;

[0018] Figure 3 for Figure 2 The schematic diagram of the structure after removing the upper liner;

[0019] Figure 4 It is a schematic structural diagram of an exhaust device according to an embodiment of the present invention;

[0020] Figure 5 for Figure 4 A perspective exploded schematic diagram of the exhaust device shown;

[0021] Figure 6 for Figure 4 A cross-sectional view of the structure of the exhaust device shown;

[0022] Figure 7 A schematic structural diagram of a front air deflector according to an embodiment of the present invention;

[0023] Figure 8 A schematic diagram of the structure of a fan blade according to an embodiment of the present invention;

[0024] Fig. 9 The figure is a schematic diagram of the installation structure of the heating plate according to the embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 3As shown, the household appliance with double inner tanks in this embodiment includes a box body 1, an upper inner tank 2 and a lower inner tank 3 are installed in the box body 1, an upper door body 4 is installed on the front side of the upper inner tank 2, a lower door body 5 is installed on the front side of the lower inner tank 3, an operation panel 6 is installed on the upper door body 4, an air outlet 7 is provided between the upper door body 4 and the lower door body 5, and an exhaust device 8 capable of discharging airflow to the air outlet 7 is installed inside the box body 1.

[0027] like Figures 4 to 8 As shown, the exhaust device 8 of this embodiment includes a mounting plate 81, a front air guide plate 82, a rear air guide plate 83 and a fan assembly. Among them, the mounting plate 81 is located at the top of the lower liner 3, the front air guide plate 82 and the rear air guide plate 83 are installed on the mounting plate 81 and are located above the mounting plate, an exhaust channel is formed between the front air guide plate 82 and the mounting plate 81, and an exhaust port 87 is formed between the front air guide plate 82 and the front end of the mounting plate 81, and the exhaust direction of the exhaust port 87 is horizontally forward and toward the air outlet 7. In addition, in order to divert the airflow discharged from the rear air guide plate 83 to improve the uniformity of the airflow at the exhaust port 87, a diverter wall 821 is formed on the inner wall of the front air guide plate 82. An air intake channel connected to the exhaust channel is formed between the rear air guide plate 83 and the mounting plate 81, and the fan assembly is installed on the rear air guide plate 83.

[0028] After the exhaust device 8 is installed, the front air guide plate 82 is located in the gap between the upper inner liner 2 and the lower inner liner 3, and the rear air guide plate 83 and the fan assembly are located above the lower inner liner 3 and at the rear side of the upper inner liner 2. The exhaust device 8 not only avoids the upper inner liner 2 and other components, but also makes full use of the internal space of the box body 1, has a compact structure and a reasonable layout, and is also easy to disassemble and repair the fan assembly.

[0029] The fan assembly of this embodiment includes a fan bracket 84, a blade fan 85 and a blade 86. The fan bracket 84 is mounted on the rear air guide plate 83. An air inlet 88 connected to the air inlet channel is formed between the fan bracket 84 and the rear air guide plate 83. The blade fan 85 is a centrifugal fan and is mounted on the fan bracket 84. The blade 86 is mounted on the blade fan 85. In addition, the center of the blade 86 is a mounting hole 861. The blade 86 is mounted on the output shaft of the blade fan 85 through the mounting hole 861. Around the mounting hole 861, spiral blades 862 that spread outward are evenly distributed. In order to increase the exhaust flow rate, the inner side of the spiral blade 862 forms an air intake area, and the outer side of the spiral blade 862 forms an air outlet area. The outer side of the spiral blade 862 guides the airflow in a spiral direction. In addition, through simulation and experimental tests, when the number of spiral blades 862 is 15, the airflow effect is best.

[0030] like Fig. 9As shown, the upper inner liner 2 of this embodiment has a steaming function. In order to evaporate the condensed water at the bottom of the upper inner liner 2, a heating plate 9 is installed at the bottom of the upper inner liner 2. The heating plate 9 is located above the front air guide plate 82, and a thermostat 91 for real-time monitoring of the temperature of the heating plate is installed on the heating plate 9. In this embodiment, since the exhaust channel portion of the exhaust device 8 is located between the upper inner liner 2 and the lower inner liner 3, under the action of the fan blade fan 85, the air in the space enclosed by the mounting plate 81 and the front air guide plate 82 and the rear air guide plate 83 is cold air, which can prevent the heat dissipated from the upper surface of the lower inner liner 3 from entering the heating plate 9 at the bottom of the upper inner liner 2, and does not affect the normal operation of the heating plate 9.

[0031] The household appliance of this embodiment is a steaming and baking device. The lower inner pot 3 has a steaming function. A steam generating device 11 is installed in the box body 1, and the steam generating device 11 enters the lower inner pot 3. In addition to the steaming function, the lower inner pot 3 can also have a baking function, that is, a heating tube 10 for heating the lower inner pot is installed around the lower inner pot 3, and a hot air outlet 31 is provided on the back plate of the lower inner pot. The structure and working principle of the heating tube 10 and the steam generating device 11 belong to the existing conventional design and will not be described in detail here. In addition, the upper inner pot 2 can also have only the steaming function, or only the baking function, or both the steaming function and the baking function.

[0032] When the household appliance is working, the steaming mode is turned on in the lower cavity 2. When the lower door 5 is opened, the steam in the lower inner tank 3 will be released outward, and the exhaust device 8 starts to work. The air is sucked into the rear air guide plate 83 through the air inlet 88 to generate airflow. The airflow flows along the two sides of the diverter wall 821 of the front air guide plate 82 to the exhaust port 87, and is finally discharged along the air outlet 7. The airflow discharged from the air outlet 7 exerts a horizontal outward force on the steam discharged from the lower inner tank 3, and discharges the steam horizontally to a certain distance, which can prevent the steam from rising directly to the upper door 4 and the operation panel 6 to condense into condensed water when the door is opened, thereby not affecting the user experience and operation.

Claims

1. A household appliance with double inner liner, comprising a box (1), an upper inner liner (2) and a lower inner liner (3) are installed in the box (1), an upper door (4) is installed on the front side of the upper inner liner (2), and a lower door (5) is installed on the front side of the lower inner liner (3), characterized in that: An air outlet (7) is provided between the upper door body (4) and the lower door body (5); an exhaust device (8) capable of exhausting air toward the air outlet (7) is installed inside the box body (1); the exhaust device (8) comprises a mounting plate (81), a front air guide plate (82), a rear air guide plate (83) and a fan assembly; the front air guide plate (82) and the rear air guide plate (83) are installed on the mounting plate (81) and are located above the mounting plate; an exhaust port (7) is formed between the front air guide plate (82) and the mounting plate (81). An air passage is formed between the front air guide plate (82) and the front end of the mounting plate (81) to form an exhaust port (87) facing the air outlet (7); an air intake channel connected to the exhaust channel is formed between the rear air guide plate (83) and the mounting plate (81); the fan assembly is mounted on the rear air guide plate (83); the exhaust direction of the exhaust port (87) is horizontal and forward; the lower liner (3) has a steam inlet; and a steam generating device (11) connected to the steam inlet is installed in the box body (1).

2. The household appliance with double inner tanks according to claim 1, characterized in that: An operation panel (6) is installed on the upper door body (4).

3. The household appliance with double inner tanks according to claim 1, characterized in that: The fan assembly comprises a fan bracket (84), a fan blade fan (85) and a fan blade (86); the fan bracket (84) is mounted on the rear air guide plate (83); an air inlet (88) connected to the air inlet channel is formed between the fan bracket (84) and the rear air guide plate (83); the fan blade fan (85) is mounted on the fan bracket (84); and the fan blade (86) is mounted on the fan blade fan (85).

4. The household appliance with double inner tanks according to claim 3, characterized in that: The center of the fan blade (86) is a mounting hole (861), and spiral blades (862) are evenly distributed around the mounting hole (861), and the inner side of the spiral blade (862) forms an air intake area, and the outer side of the spiral blade (862) forms an air outlet area.

5. The household appliance with double inner tanks according to claim 1, characterized in that: A flow dividing wall (821) is formed on the inner wall of the front air guide plate (82).

6. The household appliance with double inner tanks according to claim 1, characterized in that: A heating plate (9) is installed at the bottom of the upper inner tank (2), and the heating plate (9) is located above the front air guide plate (82).

7. The household appliance with double inner tanks according to claim 1, characterized in that: A heating pipe (10) for heating the lower inner container is installed around the lower inner container (3).

Images