Cooking device and integrated stove having the same

Abstract

The present invention relates to a cooking device and an integrated stove with the cooking device, comprising an inner pot with an exhaust port, the inner pot also being provided with an exhaust port for exhausting air from the inner pot to the outside, and an exhaust pump, the exhaust pump comprising a shell having an exhaust inlet and an exhaust outlet, the exhaust inlet being fluidically connected to the exhaust port of the inner pot, and the exhaust outlet being connected to the outside, and the shell being provided with coaxially arranged axial flow blades and centrifugal blades, the axial flow blades and centrifugal blades being arranged between the exhaust inlet and the exhaust outlet, the axial flow blades being adjacent to the exhaust inlet and the centrifugal blades being adjacent to the exhaust outlet. Compared with the prior art, the gas in the inner pot in the present invention can be exhausted outward through the exhaust port, thereby improving the exhaust efficiency of the inner pot and meeting the need to exhaust high oil smoke gas in the baking mode and high humidity gas in the steaming mode.

Description

Technical Field

[0001] The present invention relates to the field of cooking devices, and in particular to a cooking device and an integrated stove having the cooking device. Background Art

[0002] An integrated stove is a device that integrates a stove (usually a gas stove) with other household appliances, while an integrated stove with a cooking device is a type of integrated stove that integrates a stove with a cooking device (electric steamer, electric oven or steam-bake combination machine, etc.), and the stove is installed above the cooking device. For example, the Chinese invention patent with application number CN202010620832.9 (publication number CN111735080A) and the Chinese utility model patent with patent number ZL202021260123.6 (authorization announcement number CN212585007U) both disclose this type of integrated stove.

[0003] Existing cooking devices with baking functions (such as ovens, steam-bake all-in-one machines, etc.) cannot exhaust air efficiently in baking mode, which affects the baking effect, especially when baking foods that require high moisture removal, such as: soluble beans, dried fruits and vegetables, cakes, puffs, etc. At the same time, in pursuit of efficient cooking, the power of the steam generator of existing cooking devices with steaming functions is getting higher and higher, which results in a large amount of residual steam in the inner pot spraying directly to the user when the door is opened after cooking, affecting the user's experience. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a cooking device with high exhaust efficiency in view of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a cooking device that can prevent the steam in the inner pot from directly spraying onto the user when the door is opened, in response to the prior art.

[0006] The third technical problem to be solved by the present invention is to provide an integrated stove with the above-mentioned cooking device in view of the prior art.

[0007] The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is: a cooking device, comprising an inner pot with an exhaust port, characterized in that the inner pot is also provided with an exhaust port for exhausting air from the inner pot to the outside, and also includes an exhaust pump, the exhaust pump includes a shell with an exhaust inlet and an exhaust outlet, the above-mentioned exhaust inlet is fluidically connected with the exhaust port of the inner pot, and the exhaust outlet is connected to the outside, and coaxially arranged axial flow fan blades and centrifugal fan blades are installed in the shell, the axial flow fan blades and centrifugal fan blades are arranged between the above-mentioned exhaust inlet and the exhaust outlet, and the axial flow fan blades are adjacent to the above-mentioned exhaust inlet and the centrifugal fan blades are adjacent to the above-mentioned exhaust outlet.

[0008] Furthermore, the air inlet is located below the air outlet, and the extension directions of the air inlet and the air outlet are respectively perpendicular to the extension directions of the rotation axes of the axial flow fan blades and the centrifugal fan blades. In this way, the gas sucked into the air pump can be condensed once in the air inlet, and the gas sucked into the air pump can be discharged more quickly through the air outlet, thereby improving the working efficiency of the air pump.

[0009] Furthermore, the air extraction outlet is opposite to the centrifugal fan blades, so as to further improve the discharge efficiency of the gas sucked into the air extraction pump through the air extraction outlet.

[0010] Furthermore, the shell is arranged vertically, the rotation axes of the axial flow blades and the centrifugal blades extend along the central axis of the shell, the air inlet extends in the left-right direction, and the air outlet extends in the front-back direction. On the one hand, the gas can be pumped out more smoothly, and on the other hand, the condensed water formed in the inner cavity of the shell can flow downward and flow back into the inner tank through the air inlet, so as to avoid the condensed water remaining in the inner cavity of the shell.

[0011] Furthermore, the inner cavity of the housing includes a centrifugal cavity for installing the centrifugal blades and an axial flow cavity for installing the axial flow blades, the centrifugal cavity and the axial flow cavity are both cylindrical and connected to each other from top to bottom, the air extraction outlet is provided on the cavity wall of the centrifugal cavity and extends along the tangential direction of the centrifugal cavity, and the air extraction inlet is fluidically connected to the lower port of the axial flow cavity. Thus, the air flow can flow better in the inner cavity of the housing under the rotation drive of the axial flow blades and the centrifugal blades, and can be discharged smoothly from the air extraction outlet.

[0012] Furthermore, the inner cavity of the shell also includes a first air guide cavity, which is truncated in shape, and the upper port of the first air guide cavity is connected to the lower port of the centrifugal cavity, and the lower port is connected to the upper port of the axial flow cavity. The guidance of the first air guide cavity increases the flow rate of the axial flow fan blades, thereby further increasing the flow rate of the centrifugal fan blades.

[0013] Furthermore, an air guide grille is installed in the upper port of the first air guide cavity, and an axial hole for the rotating shaft to pass through is opened at the center of the air guide grille. The airflow entering the centrifugal cavity can be combed through the air guide grille to improve the air intake efficiency of the centrifugal fan blades, and the rotating shaft can be stably installed.

[0014] Furthermore, the inner cavity of the housing further includes a second air guide cavity, the upper port of the second air guide cavity is connected to the lower port of the axial flow cavity, and the lower port is fluidically connected to the air extraction inlet. The second air guide cavity can make the airflow entering through the air extraction inlet flow into the axial flow cavity more smoothly.

[0015] Furthermore, the second air guide cavity is shaped like an inverted truncated cone, and the lower port of the second air guide cavity is connected to the above-mentioned air extraction inlet through a smoothly extended air guide pipe, so that the air flow can be further smoothly introduced into the axial flow cavity.

[0016] Furthermore, a first shock-absorbing sleeve is disposed on the periphery of the air guide tube, so that during operation, the first shock-absorbing sleeve can reduce the vibration of the air pump, thereby ensuring the stability of the installation structure of the air pump.

[0017] Furthermore, a control valve for controlling the opening and closing of the above-mentioned air extraction inlet is installed on the housing, so that the air extraction pump can be opened and closed through the control valve, thereby realizing the control of the exhaust of the inner tank.

[0018] Furthermore, the inner cavity of the housing further comprises an air inlet cavity, which extends vertically and the air extraction inlet port is provided on the cavity wall of the air inlet cavity, and the upper port of the air inlet cavity is connected to the lower port of the second air guide cavity, and the upper port of the second air guide cavity is connected to the lower port of the axial flow cavity. The air inlet efficiency of the air extraction pump can be improved by providing the air inlet cavity, thereby improving the air extraction efficiency of the air extraction pump.

[0019] Furthermore, the control valve is a solenoid valve, the second air guide cavity is cylindrical in shape, and the valve plate of the solenoid valve is horizontally arranged in the lower port of the second air guide cavity, thereby ensuring the air intake efficiency at the air inlet, and further ensuring the air extraction efficiency of the air pump.

[0020] Furthermore, the control valve is a stacked valve, the second air guide cavity is in the shape of an inverted truncated cone, and the valve plate of the stacked valve is hinged on the air inlet. The stacked valve has the advantages of being less affected by the circulating medium and having a large flow rate, and the second air guide cavity in the shape of an inverted truncated cone can more comfortably guide the airflow into the axial flow cavity.

[0021] Furthermore, it also includes a drive motor vertically externally arranged at the top of the above-mentioned air pump, the output shaft of the drive motor is linked with the upper end of the above-mentioned rotating shaft, and the upper ends of the output shaft and the rotating shaft are both located in the first sealed cavity. Placing the drive motor outside the inner cavity of the shell can extend the service life of the drive motor, and arranging the upper ends of the output shaft and the rotating shaft in the first sealed cavity can further extend the service life of the drive motor on the one hand, and avoid gas leakage in the air pump on the other hand.

[0022] Furthermore, the shell includes a first component with a cylindrical appearance, the upper part of the inner cavity of the first component constitutes the above-mentioned centrifugal chamber, and a motor seat is arranged above the first component, and the motor seat includes a disc-shaped base with a center hole and a cover body with a through hole on the top, the base cover is arranged on the upper opening of the above-mentioned first component, and the above-mentioned rotating shaft is passed through the center hole of the base and the output shaft of the above-mentioned driving motor is passed through the through hole of the above-mentioned cover body, and a first cylinder body centered on the center axis of the base is fixed on the top surface of the base, the above-mentioned cover body is covered on the base, and the mouth edge of the cover body is circumferentially abutted against the mouth edge of the above-mentioned first cylinder body and a third sealing ring is sandwiched between the two, the above-mentioned first sealed cavity is surrounded by the cover body and the first cylinder body, the output shaft of the above-mentioned driving motor and the upper end of the above-mentioned rotating shaft are linked through a rotating bearing, and the rotating bearing is located in the above-mentioned first sealed cavity.

[0023] Furthermore, the housing includes a first member having a cylindrical shape, the inner cavity of the first member constituting the centrifugal chamber, a motor seat is arranged above the first member, the motor seat includes a disc-shaped base with a central hole, the base cover is arranged on the upper opening of the first member, and the rotating shaft is arranged in the central hole of the base, and a first cylinder and a second cylinder outside the first cylinder are respectively fixed on the top surface of the base, the first cylinder and the second cylinder are respectively arranged with the central axis of the base as the center, the drive motor is arranged on the motor seat, and the bottom surface of the drive motor and the top edge of the first cylinder form the first sealed cavity, and the bottom surface of the drive motor and the top edge of the second cylinder form the second sealed cavity outside the first sealed cavity, the output shaft of the drive motor and the upper end of the rotating shaft are linked by a rotating bearing, and the rotating bearing is located in the first sealed cavity. On the one hand, the first sealed cavity can be formed better, and on the other hand, the double sealed cavity structure arranged inside and outside can better ensure the sealing of the output shaft of the drive motor, thereby better ensuring the working performance of the drive motor and extending the service life of the drive motor.

[0024] Furthermore, a rotating sleeve is sandwiched between the rotating bearing and the inner circumferential surface of the first cylinder, and the lower end of the rotating sleeve extends outward in the circumferential direction and radially to form an edge that abuts against the lower surface of the base, and a first sealing ring is sleeved on the rotating shaft, and the first sealing ring abuts against the edge, so as to further improve the sealing performance at the output shaft of the driving motor and better prevent the gas in the inner cavity of the housing from leaking out.

[0025] Furthermore, the shell includes a first component with a cylindrical appearance, the upper part of the inner cavity of the first component constitutes the above-mentioned centrifugal chamber, and a motor seat is arranged above the first component, and the motor seat includes a disc-shaped base with a center hole, the base cover is arranged on the upper opening of the above-mentioned first component, and the above-mentioned rotating shaft is passed through the center hole of the base, and a first cylinder body centered on the center axis of the base is fixed on the top surface of the base, the above-mentioned cover body is covered on the base, and the bottom surface of the above-mentioned drive motor and the edge of the above-mentioned first cylinder body are circumferentially abutted and a fifth sealing ring is sandwiched between the two, and the above-mentioned first sealed cavity is surrounded by the bottom surface of the drive motor and the first cylinder body, and the output shaft of the above-mentioned drive motor is linked to the upper end of the above-mentioned rotating shaft through a rotating bearing, and the rotating bearing is located in the above-mentioned first sealed cavity.

[0026] Furthermore, a second shock-absorbing sleeve is disposed on the periphery of the driving motor, which can reduce the vibration generated when the driving motor is working, thereby further ensuring the stability of the installation structure of the air extraction pump.

[0027] Furthermore, the rotary bearing is a vertically arranged column, the bottom of which is provided with a mounting groove for the upper end of the rotating shaft to be inserted, and a soft buffer cap is sandwiched between the mounting groove and the upper end of the rotating shaft.

[0028] The technical solution adopted to further solve the third technical problem is: an integrated stove, comprising the cooking device as described above and a stove arranged on the cooking device, the stove comprising a stove shell with an exhaust cavity inside, the stove shell comprising a bottom plate with an upper opening and a panel covering the bottom plate, an exhaust window communicating with the exhaust cavity is opened on the rear side of the panel, the exhaust port is fluidly connected with the first air inlet of the exhaust cavity, and the feature is that the exhaust outlet of the exhaust pump is fluidly connected with the second air inlet of the exhaust cavity. In this way, the gas extracted from the inner pot enters the exhaust cavity of the stove, and is discharged through the exhaust window on the panel under the drive of the range hood above the stove, which can further improve the exhaust efficiency of the inner pot.

[0029] Furthermore, the exhaust port is provided at the upper left of the back plate of the inner pot, and the air extraction port is provided at the lower rear of the right side wall of the inner pot. The opening position of the exhaust port meets the exhaust requirements of various modes of the cooking device, and a good exhaust effect can be obtained in both the steaming mode and the baking mode. The opening position of the air extraction port is conducive to extracting the gas in the inner pot, thereby improving the exhaust efficiency of the inner pot.

[0030] Furthermore, a water tank is arranged on the right side of the inner tank, and the air pump is arranged adjacent to the water tank. The water contained in the water tank has a large specific heat, and arranging the air pump adjacent to the water tank can play a cooling role, thereby extending the service life of the air pump.

[0031] Furthermore, a partition is vertically arranged between the inner tank and the water tank, and the vacuum pump is installed on the outer surface of the partition, so that the vacuum pump can be stably installed.

[0032] Furthermore, a mounting bracket is fixed on the outer surface of the air pump, and is fixed to the partition through the mounting bracket, thereby facilitating the installation of the air pump.

[0033] Furthermore, an exhaust box is provided in the stove shell of the stove, and the exhaust box cover is arranged on the lower surface of the panel where the above-mentioned exhaust window is located to form the above-mentioned exhaust cavity, and the above-mentioned first air inlet and the second air inlet are arranged at intervals on the bottom wall of the exhaust box, and retaining rings arranged around the outer periphery of each air inlet are respectively vertically arranged on the inner bottom surface of the exhaust box, so that the above-mentioned exhaust cavity can be better formed.

[0034] Furthermore, a condensation box is provided in the exhaust box, and a first vent and a second vent corresponding to the first air inlet and the second air inlet are respectively provided on the bottom wall of the condensation box, and each vent is fluidically connected with the corresponding air inlet, and a retaining ring is vertically provided on the inner bottom surface of the condensation box and is arranged around the outer periphery of each vent. By providing the retaining ring, interference between the gas discharged from the exhaust port and the gas extracted from the air extraction port can be avoided, thereby ensuring the exhaust efficiency of the inner tank, and preventing the condensed water formed in the condensation box from flowing back into the inner tank.

[0035] Compared with the prior art, the advantages of the present invention are: an exhaust port is opened on the inner pot, so that the gas in the inner pot can be extracted outwardly through the exhaust port, thereby improving the exhaust efficiency of the inner pot: in the baking mode, moisture can be discharged outwardly through the exhaust port to avoid excessive humidity inside the inner pot, thereby improving the baking effect; and when the steaming function ends, the remaining steam in the inner pot is extracted outwardly through the exhaust port, thereby avoiding the steam in the inner pot from spraying directly onto the user when the door is opened.

[0036] Among them, the axial flow fan blades in the vacuum pump of the present invention can increase the air intake of the centrifugal fan blades, and the centrifugal fan blades change the direction of the airflow introduced by the axial flow fan blades, so that the airflow can flow out from the vacuum outlet, thereby realizing high-flow discharge of the gas in the inner tank, meeting the needs of extracting high-oil smoke gas in the baking mode and high-humidity gas in the steaming mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of an integrated stove in Example 1 of the present invention;

[0038] Figure 2 This is a schematic diagram of the partial structure of the integrated stove in Example 1 of the present invention;

[0039] Figure 3 for Figure 2 A schematic diagram of the structure in another direction;

[0040] Figure 4 is another partial structural schematic diagram of the integrated stove in Example 1 of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of the exhaust box and the condensation box in Example 1 of the present invention;

[0042] Figure 6 Schematic diagram of the structure of the air pump in Example 1 of the present invention;

[0043] Figure 7 is a cross-sectional view of the air pump in Example 1 of the present invention;

[0044] Figure 8 It is a partial structural exploded view of the air pump in Example 1 of the present invention;

[0045] Fig. 9 is a schematic structural diagram of a first component of an air extraction pump in Embodiment 1 of the present invention;

[0046] Fig.10 It is a schematic diagram of the partial structure of the integrated stove in Example 2 of the present invention;

[0047] Fig.11 Schematic diagram of the structure of the air pump in Example 2 of the present invention;

[0048] Fig.12 It is a partial structural schematic diagram of the air extraction pump in Example 2 of the present invention;

[0049] Fig.13 is a cross-sectional view of the air extraction pump in Example 2 of the present invention;

[0050] Fig.14 It is a partial structural exploded view of the air pump in Example 2 of the present invention;

[0051] Fig.15 Schematic diagram of the structure of the air extraction pump in Example 3 of the present invention;

[0052] Fig.16 It is a cross-sectional view of the vacuum pump in Example 3 of the present invention. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below with reference to the accompanying drawings.

[0054] Embodiment 1:

[0055] like Figures 1 to 9As shown, an integrated stove comprises a cooking device 1 with an inner pot 10 and a stove 2 arranged on the cooking device 1, wherein the inner pot 10 has an exhaust port 101 and an air suction port 102, wherein the air suction port 102 is used to draw air from the inner pot 10 to the outside, and the stove 2 comprises a stove shell with an exhaust cavity 30 arranged therein, wherein the stove shell comprises a bottom plate 21 with an upper opening and a panel 22 covering the bottom plate 21, wherein an exhaust window 221 communicating with the exhaust cavity 30 is arranged on the rear side of the panel 22, wherein a first air inlet 31 and a second air inlet 32 ​​are respectively arranged on the exhaust cavity 30, and the exhaust port 101 and the air suction port 102 are respectively fluidly connected to the first air inlet 31 and the second air inlet 32. In this way, the gas in the inner pot 10 can be drawn outward through the air suction port 102 and enter the exhaust cavity 30 in the cooker 2. Driven by the range hood 101 above the cooker 2, the gas is discharged outward through the exhaust window 221 on the panel 22, thereby improving the exhaust efficiency of the inner pot 10. Specifically, in the baking mode, the air suction port 102 can be used to discharge moisture outward to avoid excessive humidity inside the inner pot 10, thereby improving the baking effect. When the steaming function ends, the remaining steam in the inner pot 10 is drawn outward through the air suction port 102, thereby preventing the steam in the inner pot 10 from directly spraying onto the user when the door is opened. Preferably, in this embodiment, a humidity probe 100 is installed on the inner top surface of the inner pot 10, so that the humidity in the inner pot 10 can be monitored.

[0056] The exhaust cavity 30 can be implemented in a variety of ways. In this embodiment, Figure 4 and Figure 5 As shown, an exhaust box 3 is provided in the stove shell of the stove 2. The exhaust box 3 is covered on the lower surface of the panel 22 where the exhaust window 221 is located to enclose the exhaust cavity 30, and the first air inlet 31 and the second air inlet 32 ​​are arranged at intervals on the bottom wall of the exhaust box 3. In order to collect condensed water formed in the exhaust box 3, a condensation box 11 is provided in the exhaust box 3. The bottom wall of the condensation box 11 is respectively provided with a first vent 111 and a second vent 112 corresponding to the first air inlet 31 and the second air inlet 32, and each vent is fluidly connected with the corresponding air inlet, and a retaining ring 113 surrounding the outer periphery of each vent is vertically provided on the inner bottom surface of the condensation box 11. By providing the retaining ring 113, interference between the gas discharged from the exhaust port 101 and the gas extracted from the air extraction port 102 can be avoided, thereby ensuring the exhaust efficiency of the inner liner 10, and preventing the condensed water formed in the condensation box 11 from flowing back into the inner liner 10. In this embodiment, the exhaust port 101 is connected to the first air inlet 31 through the exhaust pipe 104, and under the continuous action of the air extraction pump 4, when the internal pressure of the inner liner 10 is lower than the external atmospheric pressure, the exhaust port 101 can play a role in replenishing air to the inner liner 10, thereby achieving continuous air extraction of the inner liner 10.

[0057] Specifically, in this embodiment, Figure 2 and Figure 3 As shown, the exhaust port 101 is opened at the upper left of the back plate of the inner pot 10, and the air extraction port 102 is opened at the lower rear of the right side wall of the inner pot 10. The opening position of the exhaust port 101 meets the exhaust requirements of the cooking device 1 in various modes, and a good exhaust effect can be obtained in both the steaming mode and the baking mode. The opening position of the air extraction port 102 is conducive to extracting the gas in the inner pot 10 and improving the exhaust efficiency of the inner pot 10. In addition, a water tank 8 is provided on the right side of the inner pot 10, and the air extraction pump 4 is adjacent to the water tank 8. The specific heat of the water contained in the water tank 8 is relatively large, and the air extraction pump 4 is adjacent to the water tank 8 to play a cooling role, thereby extending the service life of the air extraction pump 4. Preferably, a partition 81 is vertically provided between the inner pot 10 and the water tank 8, and the air extraction pump 4 is installed on the outer surface of the partition 81, so that the air extraction pump 4 can be stably installed. Preferably, a mounting bracket 48 is fixed on the outer surface of the air pump 4 , and is fixed to the partition plate 81 through the mounting bracket 48 , so that the air pump 4 can be easily and stably installed.

[0058] In order to better realize the extraction of gas from the inner container 10 through the gas extraction port 102, as Figures 6 to 9 As shown, it also includes an air pump 4 having an air suction inlet 41 and an air suction outlet 42, wherein the air suction inlet 41 is in fluid communication with the air suction port 102, and the air suction outlet 42 is in fluid communication with the second air inlet 32 ​​of the exhaust chamber 30. Specifically, the air pump 4 includes a housing 40 having the air suction inlet 41 and the air suction outlet 42, and the housing 40 is provided with coaxially arranged axial flow blades 44 and centrifugal blades 43, the axial flow blades 44 and the centrifugal blades 43 are arranged between the air suction inlet 41 and the air suction outlet 42, and the axial flow blades 44 are adjacent to the air suction inlet 41 and the centrifugal blades 43 are adjacent to the air suction outlet 42. In this way, the axial flow blades 44 increase the air intake of the centrifugal blades 43, and the centrifugal blades 43 change the direction of the airflow introduced by the axial flow blades 44, so that the airflow can flow out from the exhaust outlet 42, achieving high-flow discharge of the gas in the inner pot 10, meeting the needs of extracting high-smoke gas in the baking mode and high-humidity gas in the steaming mode. The exhaust pump 4 in the present invention achieves the characteristics of small volume and high flow through the combined design of the centrifugal blades 43 and the axial flow blades 44, solving the problem of small installation space inside the cooking device 1.

[0059] Furthermore, the above-mentioned air suction inlet 41 is located below the above-mentioned air suction outlet 42, and the extension directions of the air suction inlet 41 and the air suction outlet 42 are respectively perpendicular to the extension directions of the rotation axes 45 of the above-mentioned axial flow blades 44 and centrifugal blades 43. In this way, the gas sucked into the air suction pump 4 can be condensed once in the air suction inlet 41, and the gas sucked into the air suction pump 4 can be discharged more quickly through the air suction outlet 42, thereby improving the working efficiency of the air suction pump 4. The above-mentioned air suction outlet 42 is opposite to the above-mentioned centrifugal blades 43, further improving the discharge efficiency of the gas sucked into the air suction pump 4 through the air suction outlet 42. Preferably, the above-mentioned shell 40 is vertically arranged, the rotation axes 45 of the above-mentioned axial flow blades 44 and centrifugal blades 43 extend along the central axis direction of the shell 40, the above-mentioned air suction inlet 41 extends in the left-right direction, and the above-mentioned air suction outlet 42 extends in the front-back direction. On the one hand, the gas can be pumped out more smoothly, and on the other hand, the condensed water formed in the inner cavity of the shell 40 can flow downward and flow back into the inner liner 10 through the air extraction inlet 41, thereby preventing the condensed water from remaining in the inner cavity of the shell 40. In this embodiment, the air extraction inlet 41 is directly connected to the air extraction port 102, and the air extraction outlet 42 is connected to the second air inlet 32 ​​through the air extraction pipe 103.

[0060] In this embodiment, Figure 7As shown, the inner cavity of the shell 40 includes a centrifugal cavity 401 for installing the centrifugal blades 43 and an axial flow cavity 403 for installing the axial flow blades 44. The centrifugal cavity 401 and the axial flow cavity 403 are both cylindrical in shape and communicate with each other from top to bottom. The air extraction outlet 42 is opened on the cavity wall of the centrifugal cavity 401 and extends along the tangential direction of the centrifugal cavity 401, and the air extraction inlet 41 is fluidly connected with the lower port of the axial flow cavity 403, so that the air flow can flow better in the inner cavity of the shell 40 under the rotation drive of the axial flow blades 44 and the centrifugal blades 43, and can be smoothly discharged from the air extraction outlet 42. Further, the inner cavity of the shell 40 also includes a first air guide cavity 402, which is truncated in shape, and the upper port of the first air guide cavity 402 is connected to the lower port of the centrifugal cavity 401, and the lower port is connected to the upper port of the axial flow cavity 403. The flow rate of the air outflow of the axial flow blades 44 is increased by the guidance of the first air guide cavity 402, thereby further increasing the flow rate of the air inflow of the centrifugal blades 43. Preferably, an air guide grille 46 is installed in the upper port of the first air guide cavity 402, and an axial hole 461 for the rotating shaft 45 to pass through is opened at the center of the air guide grille 46. The airflow entering the centrifugal cavity 401 can be combed by the air guide grille 46, and the air intake efficiency of the centrifugal blades 43 can be improved. In addition, the stable installation of the rotating shaft 45 can be achieved. In this embodiment, the air guide grille 46 includes a shaft ring 462 located at the center, and the through hole of the shaft ring 462 constitutes the shaft hole 461, and the shaft ring 462 is adjacent to the edge of the upper port of the first air guide cavity 402 through a radially extending connecting strip 463, and the connecting strip 463 is evenly arranged at intervals along the circumferential direction, and an air guide port 464 is formed between adjacent connecting strips 463.

[0061] Furthermore, the inner cavity of the shell 40 further includes a second air guide cavity 404, the upper port of which is connected to the lower port of the axial flow cavity 403, and the lower port is fluidically connected to the air extraction inlet 41. By providing the second air guide cavity 404, the airflow entering through the air extraction inlet 41 can flow more smoothly into the axial flow cavity 403. In this embodiment, the shape of the second air guide cavity 404 is an inverted truncated cone, and the lower port of the second air guide cavity 404 is connected to the air extraction inlet 41 through a smoothly extended air guide pipe 47, so that the airflow can be further smoothly introduced into the axial flow cavity 403. Preferably, a first shock-absorbing sleeve 97 is provided on the periphery of the air guide pipe 47. In this way, during operation, the air pump 4 can be damped by the first shock-absorbing sleeve 97 to ensure the stability of the installation structure of the air pump 4.

[0062] Specifically, in this embodiment, the shell 40 is a split structure and includes a first component 40a and a second component 40b at the top and bottom, wherein the centrifugal chamber 401 and the first air guide chamber 402 are located in the first component 40a, and the second air guide chamber 404 and the air intake chamber 405 are located on the second component 40b, the lower end of the first component 40a and the upper end of the second component 40b form the axial flow chamber 403, and a second sealing ring 92 is provided at the connection between the first component 40a and the second component 40b.

[0063] Furthermore, it also includes a drive motor 5 vertically externally arranged at the top of the above-mentioned vacuum pump 4. By placing the drive motor 5 externally, the influence of the oil smoke and high humidity environment inside the vacuum pump 4 on the performance of the drive motor 5 can be avoided, thereby extending the service life of the drive motor 5. The output shaft of the drive motor 5 is linked with the upper end of the above-mentioned rotating shaft 45, and the upper ends of the output shaft and the rotating shaft 45 are both located in the first sealed cavity 501. Placing the drive motor 5 outside the inner cavity of the housing 40 can extend the service life of the drive motor 5, and the upper ends of the output shaft and the rotating shaft 45 are both arranged in the first sealed cavity 501. On the one hand, the service life of the drive motor 5 can be further extended, and on the other hand, gas leakage in the vacuum pump 4 can be avoided. In addition, in this embodiment, by increasing the torque of the drive motor 5, the problem of the drive motor 5 being stuck by accumulated grease after long-term use can be avoided.

[0064] like Figure 7As shown, the housing 40 includes a first member 40a having a cylindrical shape, the upper part of the inner cavity of the first member 40a constitutes the centrifugal chamber 401, a motor base is arranged above the first member 40a, and the motor base includes a disc-shaped base 51 with a center hole 510 and a cover 52 with a through hole 521 on the top, the base 51 is covered on the upper opening of the first member 40a, and the rotating shaft 45 is penetrated in the center hole 510 of the base 51, and the output shaft of the driving motor 5 is penetrated in the through hole 521 of the cover 52. 1, a first cylinder 511 centered on the central axis of the base 51 is fixed on the top surface of the base 51, the cover 52 is covered on the base 51, and the edge of the cover 52 abuts against the edge of the first cylinder 511 along the circumferential direction and a third sealing ring 93 is sandwiched between the two, the cover 52 and the first cylinder 511 form the first sealed cavity 501, the output shaft of the drive motor 5 and the upper end of the rotating shaft 45 are linked through a rotating bearing 53, and the rotating bearing 53 is located in the first sealed cavity 501. Preferably, a fourth sealing ring 94 is sandwiched between the rotating shaft 45 and the central hole 510 of the base 51. Further preferably, the above-mentioned rotating bearing 53 is a vertically arranged column, and a mounting groove 531 is opened at the bottom of the column for the upper end of the above-mentioned rotating shaft 45 to be inserted, and a soft buffer cap 96 is sandwiched between the mounting groove 531 and the upper end of the rotating shaft 45, so that the rotating shaft 45 can rotate smoothly, and further the centrifugal fan blades 43 and the axial flow fan blades 44 can rotate smoothly.

[0065] Embodiment 2:

[0066] like Figures 10 to 14 As shown, different from Example 1, in this embodiment, a control valve for controlling the opening and closing of the above-mentioned air extraction inlet 41 is installed on the above-mentioned shell 40. In this way, the opening and closing of the air extraction pump 4 can be realized by the control valve, thereby realizing the control of the exhaust of the inner tank 10. Further, the inner cavity of the shell 40 also includes an air intake cavity 405, which extends vertically and the above-mentioned air extraction inlet 41 is opened on the cavity wall of the air intake cavity 405, and the upper port of the air intake cavity 405 is connected to the lower port of the second air guide cavity 404, and the upper port of the second air guide cavity 404 is connected to the lower port of the above-mentioned axial flow cavity 403. By setting the air intake cavity 405, the air intake efficiency of the air extraction pump 4 can be improved, thereby improving the air extraction efficiency of the air extraction pump 4. Specifically, the above-mentioned control valve is an electromagnetic valve 6. Different from Example 1, in this embodiment, the shape of the above-mentioned second air guide cavity 404 is cylindrical, and the first valve plate 61 of the electromagnetic valve 6 is horizontally arranged in the lower port of the second air guide cavity 404, so as to ensure the air intake efficiency at the air inlet 41, and then ensure the air extraction efficiency of the air pump 4.

[0067] In addition, in this embodiment, the outer side of the first component 40a is cylindrical, and a motor seat is arranged above the first component 40a. The motor seat includes a disc-shaped base 51 with a center hole 510. The base 51 is covered on the upper opening of the first component 40a, and the rotating shaft 45 is passed through the center hole 510 of the base 51. A first cylinder 511 and a second cylinder 512 located outside the first cylinder 511 are respectively fixed on the top surface of the base 51. The first cylinder 51 1 and the second cylinder 512 are centered on the central axis of the base 51, respectively. The drive motor 5 is arranged on the motor seat, and the bottom surface of the drive motor 5 and the top edge of the first cylinder 511 form the first sealed cavity 501, and the second sealed cavity 502 outside the first sealed cavity 501 is formed with the top edge of the second cylinder 512. The output shaft of the drive motor 5 is linked with the upper end of the rotating shaft 45 through a rotating bearing 53, and the rotating bearing 53 is located in the first sealed cavity 501. In this way, on the one hand, the first sealed cavity 501 can be formed better, and on the other hand, the double sealed cavity structure inside and outside can better ensure the sealing of the output shaft of the drive motor 5, thereby better ensuring the working performance of the drive motor 5 and extending the service life of the drive motor 5. Preferably, a rotating sleeve 54 is sandwiched between the rotating bearing 53 and the inner circumferential surface of the first cylinder 511, and the lower end of the rotating sleeve 54 extends outward in the circumferential direction and radially to form an edge 541 that abuts against the lower surface of the base 51, and a first sealing ring 91 is sleeved on the rotating shaft 45, and the first sealing ring 91 abuts against the edge 541. The sealing performance at the output shaft of the driving motor 5 is further improved, and the gas in the inner cavity of the housing 40 is better prevented from leaking out.

[0068] Embodiment 3:

[0069] like Fig.15 and Fig.16 As shown, different from the embodiment 2, in this embodiment, the control valve is a stacked valve 7, the second air guide cavity 404 is in the shape of an inverted truncated cone, and the valve plate of the stacked valve 7 is hinged on the air inlet 41. The stacked valve 7 has the advantages of being less affected by the circulating medium and having a large flow rate, and the second air guide cavity 404 in the shape of an inverted truncated cone can more comfortably guide the airflow into the axial flow cavity 403.

[0070] In addition, the shell 40 includes a first component 40a with a cylindrical shape, and the upper part of the inner cavity of the first component 40a constitutes the centrifugal chamber 401. A motor seat is arranged above the first component 40a, and the motor seat includes a disc-shaped base 51 with a center hole 510. The base 51 is covered on the upper opening of the first component 40a, and the rotating shaft 45 is passed through the center hole 510 of the base 51, and a first cylinder 511 centered on the center axis of the base 51 is fixed on the top surface of the base 51, and the cover body 52 is covered on the base 51, and the bottom surface of the drive motor 5 and the edge of the first cylinder 511 are circumferentially abutted and a fifth sealing ring 95 is sandwiched between the two, and the bottom surface of the drive motor 5 and the first cylinder 511 form the first sealed chamber 501, and the output shaft of the drive motor 5 and the upper end of the rotating shaft 45 are linked through a rotating bearing 53, and the rotating bearing 53 is located in the first sealed chamber 501. Further preferably, the rotating bearing 53 is a vertically arranged column, the bottom of which is provided with a mounting groove 531 for the upper end of the rotating shaft 45 to be inserted, and a soft buffer cap 96 is sandwiched between the mounting groove 531 and the upper end of the rotating shaft 45, so that the rotating shaft 45 can rotate smoothly, thereby enabling the centrifugal blades 43 and the axial flow blades 44 to rotate smoothly. Furthermore, a second shock-absorbing sleeve 98 is provided on the periphery of the driving motor 5, which can reduce the vibration generated when the driving motor 5 is working, and further ensure the stability of the installation structure of the vacuum pump 4.

[0071] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected to each other, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A cooking device, comprising an inner pot (10) having an exhaust port (101), characterized in that: The inner liner (10) is also provided with an air suction port (102) for sucking air outward from the inner liner (10), and also includes an air suction pump (4), the air suction pump (4) including a shell (40) having an air suction inlet (41) and an air suction outlet (42), the air suction inlet (41) being fluidically connected to the air suction port (102) of the inner liner (10), while the air suction outlet (42) is connected to the outside, and the shell (40) is provided with coaxially arranged axial flow blades (44) and centrifugal blades (43), the axial flow blades (44) and the centrifugal blades (43) being arranged between the air suction inlet (41) and the air suction outlet (42), and the axial flow blades (44) are adjacent to the air suction inlet (41) and the centrifugal blades (43) are adjacent to the air suction outlet (42); The air suction inlet (41) is located below the air suction outlet (42), and the extension directions of the air suction inlet (41) and the air suction outlet (42) are respectively perpendicular to the extension directions of the rotation axes (45) of the axial flow blades (44) and the centrifugal blades (43); The air extraction outlet (42) is opposite to the centrifugal fan blade (43); The housing (40) is arranged vertically, the rotation axes (45) of the axial flow blades (44) and the centrifugal blades (43) extend along the central axis direction of the housing (40), the air inlet (41) extends in the left-right direction, and the air outlet (42) extends in the front-back direction; The inner cavity of the housing (40) comprises a centrifugal cavity (401) for mounting the centrifugal blades (43) and an axial flow cavity (403) for mounting the axial flow blades (44); the centrifugal cavity (401) and the axial flow cavity (403) are both cylindrical in shape and communicate with each other from top to bottom; the air extraction outlet (42) is disposed on the cavity wall of the centrifugal cavity (401) and extends along the tangential direction of the centrifugal cavity (401); and the air extraction inlet (41) is fluidically connected to the lower end of the axial flow cavity (403); The inner cavity of the shell (40) further comprises a first air guide cavity (402), the first air guide cavity (402) is truncated cone-shaped, and the upper port of the first air guide cavity (402) is connected to the lower port of the centrifugal cavity (401), and the lower port is connected to the upper port of the axial flow cavity (403); An air guide grille (46) is installed in the upper port of the first air guide cavity (402), and an axis hole (461) for the rotating shaft (45) to pass through is opened at the center of the air guide grille (46); The inner cavity of the housing (40) further comprises a second air guide cavity (404), the upper port of the second air guide cavity (404) being connected to the lower port of the axial flow cavity (403), and the lower port being in fluid communication with the air extraction inlet (41); The second air guide cavity (404) is in the shape of an inverted truncated cone, and the lower end of the second air guide cavity (404) is connected to the air extraction inlet (41) via a smoothly extending air guide pipe (47).

2. The cooking device according to claim 1, characterized in that: A first shock-absorbing sleeve (97) is disposed on the periphery of the air guide tube (47).

3. The cooking device according to claim 1, characterized in that: The housing (40) is provided with a control valve for controlling the opening and closing of the air extraction inlet (41).

4. The cooking device according to claim 3, characterized in that: The inner cavity of the shell (40) also includes an air inlet cavity (405), which extends vertically and the above-mentioned air suction inlet port (41) is opened on the cavity wall of the air inlet cavity (405), and the upper port of the air inlet cavity (405) is connected to the lower port of the second air guide cavity (404), and the upper port of the second air guide cavity (404) is connected to the lower port of the above-mentioned axial flow cavity (403).

5. The cooking device according to claim 4, characterized in that: The control valve is a solenoid valve (6), the second air guide cavity (404) is cylindrical in shape, and the first valve plate (61) of the solenoid valve (6) is horizontally arranged in the lower port of the second air guide cavity (404).

6. The cooking device according to claim 4, characterized in that: The control valve is a stacked valve (7), the second air guide cavity (404) is in the shape of an inverted truncated cone, and the second valve plate (71) of the stacked valve (7) is hinged on the air extraction inlet (41).

7. The cooking device according to any one of claims 1 to 6, characterized in that: It also includes a drive motor (5) vertically externally mounted on the top of the above-mentioned vacuum pump (4), the output shaft of the drive motor (5) is linked to the upper end of the above-mentioned rotating shaft (45), and the upper ends of the output shaft and the rotating shaft (45) are both located in the first sealed cavity (501).

8. The cooking device according to claim 7, characterized in that: The housing (40) includes a first component (40a) having a cylindrical shape, the upper part of the inner cavity of the first component (40a) constituting the centrifugal chamber (401), a motor base (50) being arranged above the first component (40a), the motor base (50) including a disc-shaped base (51) having a center hole (510) and a cover (52) having a through hole (521) at the top, the base (51) covering the upper opening of the first component (40a), the rotating shaft (45) passing through the center hole (510) of the base (51), and the output shaft of the driving motor (5) passing through the through hole of the cover (52). (521), and a first cylinder (511) centered on the central axis of the base (51) is fixed on the top surface of the base (51), the cover body (52) is covered on the base (51), and the edge of the cover body (52) is circumferentially abutted against the edge of the first cylinder (511) and a third sealing ring (93) is sandwiched between the two, and the cover body (52) and the first cylinder (511) form the first sealed cavity (501), the output shaft of the drive motor (5) and the upper end of the rotating shaft (45) are linked through a rotating bearing (53), and the rotating bearing (53) is located in the first sealed cavity (501).

9. The cooking device according to claim 7, characterized in that: The housing (40) comprises a first member (40a) in the shape of a cylinder, the upper part of the inner cavity of the first member (40a) constitutes the centrifugal chamber (401), a motor base (50) is arranged above the first member (40a), the motor base (50) comprises a disc-shaped base (51) having a center hole (510), the base (51) is covered on the upper opening of the first member (40a), the rotating shaft (45) is passed through the center hole (510) of the base (51), and a first cylinder (511) and a second cylinder (511) located outside the first cylinder (511) are respectively fixed on the top surface of the base (51). 512), the first cylinder (511) and the second cylinder (512) are respectively arranged with the central axis of the base (51) as the center, the drive motor (5) is arranged on the motor base (50), and the bottom surface of the drive motor (5) and the top edge of the first cylinder (511) form the first sealed cavity (501), and the bottom surface of the drive motor (5) and the top edge of the second cylinder (512) form a second sealed cavity (502) located outside the first sealed cavity (501), the output shaft of the drive motor (5) and the upper end of the rotating shaft (45) are linked via a rotating bearing (53), and the rotating bearing (53) is located in the first sealed cavity (501).

10. The cooking device according to claim 9, characterized in that A rotating sleeve (54) is sandwiched between the rotating bearing (53) and the inner circumferential surface of the first cylinder (511), and the lower end of the rotating sleeve (54) extends outward in the circumferential direction and radially to form an edge (541) that abuts against the lower surface of the base (51), and a first sealing ring (91) is sleeved on the rotating shaft (45), and the first sealing ring (91) abuts against the edge (541).

11. The cooking device according to claim 8, characterized in that: The housing (40) comprises a first member (40a) having a cylindrical shape, the upper part of the inner cavity of the first member (40a) constituting the centrifugal chamber (401), a motor base (50) being arranged above the first member (40a), the motor base (50) comprising a disc-shaped base (51) having a center hole (510), the base (51) covering the upper opening of the first member (40a), the rotating shaft (45) passing through the center hole (510) of the base (51), and a base (51) having a central hole (510) fixed on the top surface of the base (51). The first cylinder (511) is centered on the central axis of the housing, the cover (52) is arranged on the base (51), and the bottom surface of the drive motor (5) and the edge of the first cylinder (511) are circumferentially abutted against each other, and a fifth sealing ring (95) is sandwiched between the two. The bottom surface of the drive motor (5) and the first cylinder (511) form the first sealed cavity (501), and the output shaft of the drive motor (5) and the upper end of the rotating shaft (45) are linked via a rotating bearing (53), and the rotating bearing (53) is located in the first sealed cavity (501).

12. The cooking device according to claim 11, characterized in that A second shock-absorbing sleeve (98) is disposed on the periphery of the driving motor (5).

13. The cooking device according to claim 8 or 11, characterized in that: The rotating bearing (53) is a vertically arranged column, the bottom of which is provided with a mounting groove (531) for inserting the upper end of the rotating shaft (45), and a soft buffer cap (96) is sandwiched between the mounting groove (531) and the upper end of the rotating shaft (45).

14. An integrated stove, comprising a cooking device (1) as claimed in any one of claims 1 to 13 and a stove (2) arranged on the cooking device (1), the stove (2) comprising a stove shell with an exhaust cavity (30) arranged therein, the stove shell comprising a bottom plate (21) with an upper opening and a panel (22) covering the bottom plate (21), an exhaust window (221) communicating with the exhaust cavity (30) being opened on the rear side of the panel (22), the exhaust port (101) being in fluid communication with the first air inlet (31) of the exhaust cavity (30), characterized in that: The air extraction outlet (42) of the air extraction pump (4) is in fluid communication with the second air inlet (32) of the exhaust chamber (30).

15. The integrated stove according to claim 14, characterized in that: The exhaust port (101) is opened at the upper left side of the back plate of the inner container (10), while the air suction port (102) is opened at the lower rear side of the right side wall of the inner container (10).

16. The integrated stove according to claim 15, characterized in that: A water tank (8) is arranged on the right side of the inner container (10), and the air pump (4) is arranged adjacent to the water tank (8).

17. The integrated stove according to claim 16, characterized in that: A partition (81) is vertically arranged between the inner container (10) and the water tank (8), and the air pump (4) is installed on the outer surface of the partition (81).

18. The integrated stove according to claim 17, characterized in that: A mounting bracket (48) is fixed on the outer surface of the vacuum pump (4), and the vacuum pump (4) is fixed to the partition plate (81) via the mounting bracket (48).

19. The integrated stove according to claim 14, characterized in that: An exhaust box (3) is arranged in the stove shell of the stove (2); the exhaust box (3) is arranged on the lower surface of the panel (22) where the exhaust window (221) is located to enclose the exhaust cavity (30); the first air inlet (31) and the second air inlet (32) are arranged at intervals on the bottom wall of the exhaust box (3).

20. The integrated stove according to claim 19, characterized in that: The exhaust box (3) is provided with a condensation box (11), and the bottom wall of the condensation box (11) is provided with a first air vent (111) and a second air vent (112) respectively corresponding to the first air inlet (31) and the second air inlet (32), and each air vent is fluidically connected to the corresponding air inlet, and a retaining ring (113) is vertically arranged on the inner bottom surface of the condensation box (11) and is arranged around the outer periphery of each air vent.

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