An air outlet adjustable fan system for a steam oven

Abstract

The present application relates to oven fan system technical field, especially to a kind of steam oven with adjustable air outlet fan system, including frame, steam oven liner, brushless DC cooling fan, transfer box, exhaust plate and integrated air duct structure of water tank, frame both sides are respectively set detachable rear air inlet plate and fixed front air outlet plate, top installation cooling fan and connect transfer box with air direction adjusting mechanism, exhaust plate is provided with electromagnetic valve and airflow guide mechanism, water tank is connected transfer box by pipeline and is equipped with backflow mechanism.The present application utilizes the synergistic effect of frame, transfer box, exhaust plate and water tank, combines air direction adjusting mechanism and airflow guide mechanism to dynamically control airflow direction, realizes the efficient cooling of hot steam, backflow utilization and external heat dissipation, while avoiding direct contact of steam with surrounding wood cabinet board, with the advantages of improving heat dissipation efficiency, prolonging equipment service life and reducing energy consumption.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oven fan system, in particular to an air outlet adjustable fan system for steam oven. BACKGROUND

[0002] In the field of kitchen appliances, steam ovens are commonly used appliances. With the development of the times, steam ovens are mostly designed to be embedded to save space. However, embedded installation leads to limited heat dissipation space on both sides, reduced air intake, and reduced gas replenishment and exchange efficiency. The traditional two-side heat dissipation method also easily causes hot steam to come into contact with the surrounding wooden cabinet panels, which may cause the wooden structure to be damp and deformed or even damaged over a long period of use. In addition, the heat dissipation air duct structure of the existing steam oven is fixed and single, and cannot flexibly adjust the air flow direction, which not only affects the heat dissipation efficiency but also makes it difficult to realize the recycling of steam, especially during high-temperature steaming and baking, a large amount of hot steam directly discharged not only causes energy waste but also may cause the humidity of the kitchen environment to rise. In view of the above problems, the existing technology needs to be improved. SUMMARY

[0003] In order to solve the problems that the existing embedded steam oven is easy to cause damage to the surrounding and the gas replenishment and exchange are inconvenient, the present application provides an air outlet adjustable fan system for steam oven.

[0004] The air outlet adjustable fan system for steam oven provided by the present application adopts the following technical scheme:

[0005] An air outlet adjustable fan system for steam oven comprises:

[0006] A frame, one side of which is detachably connected with a rear air inlet plate, and the other side of which is fixedly connected with a front air outlet plate; a steam oven inner container, which is detachably connected to the inner side of the frame;

[0007] A brushless direct-current heat dissipation fan, which is erected on the top of the frame and located on the top side of the steam oven inner container;

[0008] A transfer box, which is fixedly communicated with the brushless direct-current heat dissipation fan, is arranged on the top side of the steam oven inner container, and is provided with a wind direction adjusting mechanism for controlling the cooling and backflow utilization of hot steam and exhaust;

[0009] An exhaust plate, which is fixedly communicated with the transfer box, is provided with an electromagnetic valve for controlling air intake and exhaust, and is provided with an air flow guiding mechanism controlled by the pressure in the transfer box;

[0010] A water tank, which is communicated with the transfer box through a pipeline, is arranged on one side of the transfer box and located on the top side of the steam oven inner container, and a backflow mechanism is arranged between the water tank and the steam oven inner container.

[0011] Further, the application also proposes that the wind direction adjusting mechanism comprises a wind hole, an air outlet pipe and a variable direction three-way pipe, the wind hole is arranged at the bottom of the transfer box, the wind hole is communicated with the air exhaust plate through a pipeline, an electromagnetic valve is arranged on the pipeline, one end of the air outlet pipe is communicated with the brushless DC cooling fan, the other end of the air outlet pipe extends to the inside of the transfer box, one end of the variable direction three-way pipe extends to the top of the inner container of the steaming and baking oven, the other end of the variable direction three-way pipe extends to the transfer box, and the other end of the variable direction three-way pipe extends to the outside of the transfer box and is communicated with the water tank through a pipeline, and a synchronous adjusting assembly is arranged in the variable direction three-way pipe.

[0012] Further, the application also proposes that the synchronous adjusting assembly comprises shaft rods, a connecting rod and a sealing plate, two shaft rods are arranged, and the two ends of the two shaft rods are both penetrated through the variable direction three-way pipe and are rotationally connected with the variable direction three-way pipe, the connecting rod is movably connected between the two shaft rods, one of the shaft rods is detachably connected with a motor outside, and the sealing plate is fixedly connected with the shaft rod.

[0013] Further, the application also proposes that the air flow guiding mechanism comprises a sliding tooth plate, a rotating rod, a gear, a flow guide plate, a spring and an air pipe, a sliding groove is arranged on the air exhaust plate, the sliding tooth plate is provided with two and is slidably connected with the sliding groove of the air exhaust plate, the rotating rod is provided with a plurality of rotating rods which are rotationally connected with the air exhaust plate, the gear is coaxially fixedly connected with the rotating rod, the sliding tooth plate is meshed with the gear, the spring is fixedly connected in the sliding groove and between the outer wall of the sliding tooth plate and the sliding groove, the flow guide plate is fixedly connected with the rotating rod, and the air pipe is fixedly connected between the sliding tooth plate and the transfer box to drive the sliding tooth plate to slide.

[0014] Further, the application also proposes that the gears are divided into two batches in an equal number and are symmetrically arranged, and the movement directions of the sliding tooth plates are opposite.

[0015] Further, the application also proposes that the backflow mechanism comprises a partition plate, a connecting pipe, a one-way valve, a conveying pipe, a drying box, a ventilation tail pipe and a liquid changing pipe, the partition plate is fixedly connected in the water tank, one end of the connecting pipe is fixedly communicated with the variable direction three-way pipe through a pipeline, the other end of the connecting pipe extends to the outside of the partition plate, the one-way valve is fixedly connected outside the water tank, the drying box is detachably connected on the frame, the conveying pipe is connected between the one-way valve and the drying box, the ventilation tail pipe is communicated between the drying box and the inner container of the steaming and baking oven, one end of the liquid changing pipe is fixedly communicated with the bottom of the water tank, and the other end of the liquid changing pipe is fixedly arranged on the bottom of the frame.

[0016] Further, the application also proposes that the frame is fixedly connected with an air pump at the top, and a hose is connected between the output end of the air pump and the conveying pipe.

[0017] Further, the application also proposes that the connecting pipe extending to the bottom side in the partition plate is provided with a backflow pipe, one end of the backflow pipe penetrates through the partition plate and is communicated with the water tank, and a one-way flow valve is arranged on the backflow pipe.

[0018] Further, the application also proposes that the inner wall of the inner container of the steaming oven is provided with an inner hot air plate, and the inner side of the two walls of the inner container of the steaming oven is provided with side air holes, which are communicated with the air tail pipes.

[0019] To sum up, the present application has the following at least one beneficial technical effect:

[0020] 1. The synergistic effect of the frame, the transfer box, the exhaust plate and the water tank is used, the air flow direction is dynamically controlled by combining the wind direction adjusting mechanism and the air flow guiding mechanism, the efficient cooling of hot steam, the reflow utilization and the external heat dissipation are realized, direct contact of steam with surrounding wood cabinet boards is avoided, the advantages of improving heat dissipation efficiency, prolonging equipment service life and reducing energy consumption are achieved.

[0021] 2. The transfer box is used to store and control a certain amount of air flow, so that the adjustment of air flow effect according to use conditions is more convenient, the selection of direct discharge or dry reflow utilization is realized, the functionality of air outlet is enriched, and the use requirements of people are met. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective structural schematic diagram of an embedded steaming oven in the embodiment.

[0023] Figure 2 is a perspective structural schematic diagram of an air outlet adjustable fan system for a steaming oven in the embodiment.

[0024] Figure 3 is a perspective structural schematic diagram of an air outlet adjustable fan system for a steaming oven in the embodiment.

[0025] Figure 4 is another perspective structural schematic diagram of an air outlet adjustable fan system for a steaming oven in the embodiment.

[0026] Figure 5 is a top view structural schematic diagram of an air outlet adjustable fan system for a steaming oven in the embodiment.

[0027] Figure 6 is an internal structure schematic diagram of a water tank in the embodiment.

[0028] Figure 7 is an internal structure schematic diagram of a steaming oven in the embodiment.

[0029] Figure 8 is a local sectional view structural schematic diagram of an air outlet pipe in the embodiment.

[0030] Figure 9 is a perspective structural schematic diagram of a change direction tee joint in the embodiment.

[0031] Explanation of reference signs:

[0032] 1, frame; 11, rear air inlet plate; 12, front air outlet plate; 2, steaming oven liner; 21, built-in hot air plate; 22, side air hole; 3, brushless DC cooling fan; 4, transfer box; 41, electromagnetic valve; 42, air hole; 43, air outlet pipe; 44, change direction tee joint; 441, shaft rod; 442, connecting rod; 443, sealing plate; 5, exhaust plate; 51, sliding tooth plate; 52, rotating rod; 53, gear; 54, guide plate; 55, spring; 56, air pipe; 6, water tank; 61, partition plate; 62, connecting pipe; 63, one-way valve; 64, conveying pipe; 65, drying box; 66, air tail pipe; 67, liquid changing pipe; 68, air pump; 69, backflow pipe. DETAILED DESCRIPTION

[0033] The following description will be made in conjunction with the accompanying drawings. Figures 1-9 The application will be further described.

[0034] The application discloses an air outlet adjustable fan system for a steaming oven.

[0035] It should be noted that in the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0036] In the prior art, the embedded steaming oven has low gas exchange efficiency due to the limited space for heat dissipation on both sides, and the long-term contact of hot steam with the surrounding wooden structure can easily cause damage. The traditional heat dissipation method is difficult to adapt to the embedded installation environment, and the insufficient air intake and narrow exhaust channel cause heat accumulation, affecting the stable operation and service life of the equipment.

[0037] In order to solve the above problems, it is found in the development process that the utilization rate of the embedded structure to the top space has optimization space. The traditional lateral heat dissipation is changed to top concentrated heat dissipation, which can avoid direct contact with the surrounding structure, and by establishing an adjustable air duct system, the hot steam diversion treatment and recycling are realized, and the pressure sensing mechanism is integrated to automatically control the air exhaust direction.

[0038] Therefore, with reference to Figures 1-9The utility model provides a kind of adjustable fan system of air outlet for steam oven, including frame 1, steam oven liner 2, brushless DC cooling fan 3, transfer box 4, exhaust plate 5 and integrated air duct structure of water tank 6, frame 1 both sides are respectively provided with detachable rear air inlet plate 11 and fixed front air outlet plate 12, top installs cooling fan and connects transfer box 4 with air direction adjusting mechanism, exhaust plate 5 is provided with electromagnetic valve 41 and airflow guide mechanism, water tank 6 is connected with transfer box 4 by pipeline and is configured with backflow mechanism.

[0039] Wherein, frame 1 is as support main body, rear air inlet plate 11 and front air outlet plate 12 form air circulation channel, specifically can adopt metal stamping part and buckle structure to realize quick disassembly and assembly.Brushless DC cooling fan 3 is arranged in top area, specifically can adopt axial fan to realize high-efficiency gas delivery, air direction adjusting mechanism inside transfer box 4 includes multi-passage pipeline system, electromagnetic valve 41 of exhaust plate 5 controls opening and closing according to temperature signal, specifically can adopt electromagnetic iron driven gate structure to realize quick response, water tank 6 is connected with transfer box 4 by flexible pipeline, specifically can adopt copper pipe to realize steam condensation.

[0040] Specifically, before use, brushless DC cooling fan 3 can suck air into steam oven frame 1, improve air flow rate, when using, brushless DC cooling fan 3 sucks the hot steam generated by steam oven liner 2 to transfer box 4, selectively directs gas to exhaust plate 5 or backflow system through air direction adjusting mechanism, electromagnetic valve 41 inside exhaust plate 5 controls exhaust passage opening and closing according to preset program, airflow guide mechanism adjusts exhaust angle through pressure driving guide plate 54 in transfer box 4, water tank 6 collects condensed water and sends dry gas back to steam oven liner 2 through backflow mechanism, speeds up gas circulation inside steam oven liner 2, ensures the quality of steaming, forms resource recycling, detachable structure on both sides of frame 1 facilitates regular cleaning of air duct dirt, fixed design of front air outlet plate 12 ensures that the main exhaust direction is stable, and will not cause destructive damage to the two sides of wood board.

[0041] Compared with prior art, the utility model changes cooling channel to top of equipment, effectively avoids the limitation of side space for embedded installation, the cooperative control of air direction adjusting mechanism and electromagnetic valve 41 realizes the directional treatment of hot steam, avoids direct contact of high-temperature gas and surrounding structure, airflow guide mechanism automatically adjusts exhaust angle through pressure feedback, compared with fixed air duct, has better environmental adaptability, the combination design of water tank 6 and backflow mechanism realizes the separation and recycling of condensed water and dry gas, reduces external water demand.

[0042] By the above technical scheme, the heat exchange efficiency of the embedded steaming oven is effectively improved, damage to the installation environment caused by high-temperature steam is prevented, the adjustable air duct structure adapts to the heat dissipation demand under different working conditions, the linkage control of the electromagnetic valve 41 and the pressure sensing mechanism ensures that the exhaust process is stable and reliable, the condensate water recovery system and the dry gas recycling reduce the equipment maintenance frequency, and the overall structural design takes into account functionality and maintenance convenience.

[0043] With reference to Figures 1-9 The application further proposes an air direction adjusting mechanism including an air hole 42, an air outlet pipe 43, and a variable-direction three-way pipe 44. The air hole 42 is formed in the bottom of the transfer box 4 and is in communication with the air exhaust plate 5 through a pipeline. The electromagnetic valve 41 is installed on the pipeline where the two are in communication. One end of the air outlet pipe 43 is in communication with the brushless direct-current heat dissipation fan 3 and the other end extends to the inside of the transfer box 4. One end of the variable-direction three-way pipe 44 extends to the top of the steaming oven inner container 2 and the other end extends to the inside of the transfer box 4. Still another end extends to the outside of the transfer box 4 and is in communication with the water tank 6 through a pipeline. The variable-direction three-way pipe 44 is provided with a synchronous adjusting assembly.

[0044] The air hole 42 refers to a channel formed in the bottom of the transfer box 4 and can be realized by punching or drilling process, for guiding the airflow in the transfer box 4 to the air exhaust plate 5 or for guiding the gas from the air exhaust plate 5 to enter. The air outlet pipe 43 refers to a pipeline connecting the brushless direct-current heat dissipation fan 3 and the transfer box 4 and can be made of metal or high-temperature resistant plastic material, for conveying the airflow generated by the fan to the inside of the transfer box 4 or for discharging the inhaled normal-temperature gas into the frame 1. The variable-direction three-way pipe 44 refers to a tubular structure with three openings, for guiding the airflow to the transfer box 4 and the water tank 6 respectively. The synchronous adjusting assembly refers to a mechanical structure installed inside the variable-direction three-way pipe 44 and can be rotated by a motor-driven shaft rod 441, for synchronously adjusting the distribution ratio of the airflow in different directions.

[0045] Specifically, when the brushless direct-current heat dissipation fan 3 is running, the airflow enters the transfer box 4 through the air outlet pipe 43. When the steaming oven inner container 2 needs to speed up the circulation of the internal gas, the electromagnetic valve 41 closes the channel of the air exhaust plate 5. At this time, the variable-direction three-way pipe 44 guides the airflow to the top of the steaming oven inner container 2 to speed up the circulation of the internal hot steam. When it is needed to discharge excess steam, the electromagnetic valve 41 is opened, the airflow enters the air exhaust plate 5 through the air hole 42 and is discharged outside the equipment. The synchronous adjusting assembly is rotated by the motor-driven shaft rod 441, the linkage sealing plate 443 adjusts the on-off state of different openings in the variable-direction three-way pipe 44, and the switching of the airflow between the steaming oven inner container 2, the air exhaust plate 5, and the water tank 6 is realized.

[0046] Compared with the prior art, the heat dissipation structure of the traditional steaming oven cannot flexibly switch the air flow direction according to the working mode, resulting in limited heat exchange efficiency. The present scheme, through the cooperation of the variable-direction three-way connector 44 and the synchronous adjustment assembly, can make the air flow return to the steaming oven to improve the heat utilization efficiency, can quickly discharge the outside to avoid steam accumulation, can guide part of the steam into the water tank 6 for condensation and recovery, and can dry the gas for reuse.

[0047] Through the above technical scheme, the present application solves the problems of low heat exchange efficiency and steam leakage damage to the cabinet caused by insufficient heat dissipation space on both sides of the embedded steaming oven. The dynamic optimization of the heat dissipation path is realized through multi-directional air flow switching, the contact time of steam and external panels is reduced, and the energy utilization rate is improved.

[0048] With reference to Figures 1-9 The present application further proposes a synchronous adjustment assembly including a shaft rod 441, a connecting rod 442 and a sealing plate 443. The shaft rod 441 is provided with two ends penetrating the variable-direction three-way connector 44 and being rotatably connected with the variable-direction three-way connector 44. The connecting rod 442 is movably connected between the two shaft rods 441. One of the shaft rods 441 is detachably connected with a motor outside. The sealing plate 443 is fixedly connected with the shaft rod 441.

[0049] Specifically, when the motor drives one of the shaft rods 441 to rotate, the connecting rod 442 transmits the rotary motion to the other shaft rod 441, so that the two shaft rods 441 rotate synchronously. The sealing plate 443 changes its covering angle in the variable-direction three-way connector 44 after rotating with the shaft rod 441. For example, when the sealing plate 443 is in a vertical state, it can completely block the channel to the water tank 6, and when it is deflected to 45 degrees, it simultaneously opens the paths to the steaming oven inner container 2 and the external exhaust pipeline. During this process, the linkage mechanism of the connecting rod 442 ensures that the two sealing plates 443 always maintain the same opening degree, avoiding steam leakage caused by unilateral sealing failure.

[0050] Through the above technical scheme, the present application solves the problem of asynchronous adjustment when the steam return and discharge paths are switched during the operation of the steaming oven. The mechanical linkage structure ensures the consistency of the opening and closing actions of the sealing plate 443, avoiding steam leakage or pressure imbalance caused by unilateral sealing. At the same time, this design reduces the number of driving components, reduces the equipment failure rate and maintenance cost.

[0051] With reference to Figures 1-9The air flow guiding mechanism comprises sliding tooth plates 51, rotating rods 52, gear wheels 53, flow guide plates 54, springs 55 and air pipes 56. The air exhaust plate 5 is provided with sliding grooves. The sliding tooth plates 51 are provided with two sliding tooth plates 51 and are in sliding connection with the sliding grooves of the air exhaust plate 5. The rotating rods 52 are provided with a plurality of rotating rods 52 and are in rotating connection with the air exhaust plate 5. The gear wheels 53 are coaxially fixedly connected with the rotating rods 52. The sliding tooth plates 51 are in engagement with the gear wheels 53. The springs 55 are fixedly connected in the sliding grooves and are fixedly connected between the outer walls of the sliding tooth plates 51 and the sliding grooves. The flow guide plates 54 are fixedly connected with the rotating rods 52. The air pipes 56 are fixedly connected between the sliding tooth plates 51 and the transfer boxes 4 and are used to drive the sliding tooth plates 51 to slide. The gear wheels 53 are divided into two batches and are symmetrically arranged. The movement directions of the sliding tooth plates 51 are opposite.

[0052] The sliding tooth plates 51 are plate-shaped components with tooth-shaped structures and can be made of metal. The sliding tooth plates 51 transmit power through engagement with the gear wheels 53. The sliding directions of the sliding tooth plates 51 are controlled by the air pressure changes in the air pipes 56. The sliding tooth plates 51 are used to drive the rotating rods 52 to rotate. The rotating rods 52 are shaft bodies supporting the rotation of the flow guide plates 54 and can be made of stainless steel. The rotating rods 52 are connected with the bearings of the air exhaust plate 5 at both ends to realize rotation. The gear wheels 53 are transmission components fixedly connected with the rotating rods 52. The tooth-shaped parameters of the gear wheels 53 are matched with the sliding tooth plates 51. The gear wheels 53 can convert linear motion into rotary motion. The flow guide plates 54 are plate-shaped structures installed on the rotating rods 52 and can be made of aluminum alloy stamping. The flow guide plates 54 change the directions of air flow through angle adjustment. The springs 55 are elastic elements providing restoring force and can be spiral springs 55 or torsional springs. The springs 55 are used to restore the sliding tooth plates 51 to the initial positions when the air pressure is reduced. The air pipes 56 are flexible pipelines connecting the sliding tooth plates 51 and the transfer boxes 4 and can be made of silica gel or rubber. The air pipes 56 are used to transmit air pressure change signals.

[0053] Specifically, when the internal hot steam of the steaming oven causes the pressure in the transfer box 4 to rapidly increase, the air pipe 56 transmits the pressure to the cavity of the sliding tooth plate 51, pushes the two sliding tooth plates 51 to slide reversely in the sliding groove, drives the gear wheel 53 to rotate through the tooth-shaped structure of the sliding tooth plate 51, drives the rotating rod 52 and the flow guide plate 54 to synchronously rotate, and changes the angle of the flow guide plate 54 to guide the air flow to be discharged from the specific outlet of the air exhaust plate 5. At this time, the steam is discharged from the front two sides. When the pressure is reduced, the spring 55 pushes the sliding tooth plate 51 to reset, and the flow guide plate 54 restores the initial angle. In the process, the symmetrical reverse movement of the two sliding tooth plates 51 can ensure the balanced adjustment of the flow guide plate 54 assembly and avoid air flow turbulence.

[0054] Compared with the prior art, the traditional steam oven guide flow mechanism mostly adopts fixed guide flow plate 54 or manual adjustment device, which cannot automatically adjust the air flow direction according to the internal pressure change. The scheme realizes the dynamic self-adjustment of the angle of the guide flow plate 54 by combining the air pressure drive with the gear 53 tooth plate transmission, can quickly respond to the internal working condition change, improves the heat dissipation efficiency and the steam discharge control precision, and at the same time, the spring 55 reset mechanism does not need additional power input, which simplifies the control logic.

[0055] Referring to Figures 1-9 , the application further proposes a backflow mechanism including a partition plate 61 and a connecting pipe 62. The partition plate 61 is fixedly connected in the water tank 6. One end of the connecting pipe 62 is fixedly communicated with the variable-direction three-way connector pipe 44 through a pipeline, and the other end extends to the outside of the partition plate 61. A one-way valve 63 is fixedly connected to the outside of the water tank 6. A drying box 65 is detachably connected to the frame 1. A conveying pipe 64 is connected between the one-way valve 63 and the drying box 65. An air vent tail pipe 66 is communicated between the drying box 65 and the steam oven inner container 2. A liquid replacement pipe 67 is fixedly communicated at one end with the bottom of the water tank 6 and at the other end with the bottom of the frame 1. The connecting pipe 62 extending to the bottom side in the partition plate 61 is provided with a backflow pipe 69. One end of the backflow pipe 69 penetrates the partition plate 61 and is communicated with the water tank 6. A one-way flow valve is arranged on the backflow pipe 69.

[0056] The partition plate 61 is a plate-shaped structure for dividing the internal space of the water tank 6 into different areas, which can be welded or clamped on the inner wall of the water tank 6 by metal or plastic material. The partition plate 61 functions to isolate the liquid in the water tank 6. The connecting pipe 62 is a pipeline for conveying condensed liquid and gas, which can be connected with the variable-direction three-way connector pipe 44 and the water tank 6 by a copper pipe. The connecting pipe 62 functions to direct the steam into the water tank 6. The one-way valve 63 functions to prevent the liquid in the water tank 6 from flowing back to the transfer box 4 in reverse. The drying box 65 is a container for removing moisture from gas, which can be a box body with built-in moisture-absorbing material fixed on the frame 1 by buckles or bolts. The drying box 65 functions to dry the discharged gas, thereby reusing the gas. The conveying pipe 64 functions to convey the dried gas to a designated area. The air vent tail pipe 66 is a pipeline connecting the drying box 65 and the steam oven inner container 2, which can be a metal pipe with a bending design. The air vent tail pipe 66 functions to re-direct the dried gas into the steam oven to maintain air pressure balance and accelerate gas flow. The liquid replacement pipe 67 is a pipeline for discharging or replacing the liquid in the water tank 6, which can be a hose with a valve at the bottom. The liquid replacement pipe 67 functions to periodically clean the waste liquid in the water tank 6.

[0057] Specifically, during the operation of the steaming oven, the hot steam generated in the transfer box 4 enters the connecting pipe 62 through the change direction tee joint pipe 44, and the condensed liquid flows into the area of the water tank 6 outside the partition plate 61, that is, into the backflow pipe 69. The one-way valve 63 prevents the liquid from flowing in the opposite direction, and the gas that is not completely condensed enters the drying box 65 through the conveying pipe 64, is treated by the moisture absorbing material to form dry gas, and then returns to the inner container 2 of the steaming oven through the air tail pipe 66. The liquid discharge pipe 67 is opened regularly to discharge the waste liquid accumulated in the water tank 6, so as to keep the water tank 6 clean.

[0058] Compared with the prior art, the traditional steaming oven directly discharges the hot steam to the external environment, which causes the surrounding plate to be wet and deformed when embeddedly installed. The present scheme processes the gas through the drying box 65 and recycles the condensed water, which reduces the external water vapor discharge and avoids direct contact of the steam with the external structure. At the same time, the backflow pipe 69 balances the liquid distribution in the water tank 6, and improves the resource utilization efficiency.

[0059] Through the above technical scheme, the present application effectively solves the steam discharge problem of the embedded steaming oven due to the limited heat dissipation space. Through the condensate water recovery, gas drying treatment and liquid recycling, the risk of the external environment being affected by the hot steam is reduced, the service life of the equipment and the surrounding plate is prolonged, and the waste of water resources is reduced.

[0060] With reference to Figures 1-9 The present application further proposes that the frame 1 is fixedly connected with an air pump 68 at the top, and a hose is connected between the output end of the air pump 68 and the conveying pipe 64.

[0061] Specifically, the air pump 68 is flexibly connected with the conveying pipe 64 through the hose. During the operation of the steaming oven, the air pump 68 is started to generate negative pressure, so as to extract the gas from the water tank 6 to the drying box 65. The airflow generated by the air pump 68 is continuously conveyed to the inside of the drying box 65 along the conveying pipe 64, so as to promote the steam to fully contact with the drying agent. The flexible connection structure can compensate for the installation position deviation, and avoid the stress concentration problem caused by the rigid connection.

[0062] With reference to Figures 1-9 The present application further proposes an air outlet adjustable fan system for a steaming oven. The connecting pipe 62 is provided with a backflow pipe 69 extending to the bottom side in the partition plate 61. One end of the backflow pipe 69 penetrates the partition plate 61 and communicates with the water tank 6. A one-way flow valve is arranged on the backflow pipe 69.

[0063] Specifically, during the operation of the steaming oven, when the steam enters the water tank 6, part of the condensed water may accumulate in the inside area of the partition plate 61. The backflow pipe 69 at the bottom of the connecting pipe 62 can re-introduce this part of the condensed water into the water tank 6 through the one-way flow valve, so as to keep the inside of the partition plate 61 dry.

[0064] With reference to Figures 1-9The inner wall of the inner container 2 of the steam oven is provided with an inner hot air plate 21, and two inner walls of the inner container 2 of the steam oven are provided with side air holes 22, which are communicated with the air tail pipes 66.

[0065] The inner hot air plate 21 is a plate structure installed inside the wall of the inner container 2 of the steam oven, which can be made of metal material, and the surface is provided with through holes or grooves for uniformly distributing hot air and reducing local temperature difference during operation of the steam oven. The side air holes 22 are through holes provided on the two side walls of the inner container 2 of the steam oven, which can be circular, elliptical or long strip holes, and are symmetrically distributed at the bottom of the two side walls for guiding the treated air flow into the inner container cavity.

[0066] Specifically, the inner hot air plate 21 is fixed to the inner wall surface of the inner container 2 of the steam oven, and the hot air is uniformly diffused into the inner container cavity through the through holes or heat dissipation structures on the surface of the inner hot air plate 21, so as to avoid local overheating caused by heat concentration. The side air holes 22 are provided on the two side walls of the inner container, and are communicated with the drying box 65 through the air tail pipes 66. Under the driving of the air pump 68, the air flow treated by drying is transported from the drying box 65 to the side air holes 22, forming a stable hot air circulation path. During operation, the air flow enters the side air holes 22 from the drying box 65 through the air tail pipes 66, flows along the side wall direction of the inner container and cooperates with the inner hot air plate 21, so as to realize uniform distribution of temperature in the cavity and reduce the possibility of direct contact of steam with the two side cabinet plates.

[0067] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An air outlet adjustable fan system for a steam oven, characterized by, Include: Frame (1), one side detachable connection has rear air inlet plate (11), the other side fixedly connected with front air outlet plate (12); Steam oven liner (2), which is detachably connected to the inside of the frame (1); Brushless DC cooling fan (3), which is erected on the top of the frame (1) and located on the top side of the steam oven liner (2); The transfer box (4) is fixedly communicated with the brushless DC cooling fan (3), the transfer box (4) is arranged on the top side of the steam oven liner (2), the transfer box (4) is provided with a wind direction adjusting mechanism for controlling the cooling of hot steam, the wind direction adjusting mechanism comprises a wind hole (42), an air outlet pipe (43) and a variable direction three-way connector (44), the wind hole (42) is arranged in the bottom of the transfer box (4), one end of the air outlet pipe (43) is communicated with the brushless DC cooling fan (3), the other end extends into the transfer box (4), one end of the variable direction three-way connector (44) extends to the inner top of the steam oven liner (2), the other end extends into the transfer box (4), and one end extends to the outside of the transfer box (4) and is communicated with the water tank (6) through a pipeline, the variable direction three-way connector (44) is provided with a synchronous adjusting assembly; The exhaust plate (5) is fixedly communicated with the transfer box (4), the exhaust plate (5) is provided with an electromagnetic valve (41) for controlling air inlet and exhaust, the wind hole (42) is communicated with the exhaust plate (5) through a pipeline, the electromagnetic valve (41) is installed on the pipeline communicated with each other, the exhaust plate (5) is provided with an air flow guiding mechanism controlled by the pressure in the transfer box (4), the air flow guiding mechanism comprises a sliding tooth plate (51), a rotating rod (52), a gear (53), a guide plate (54), a spring (55) and an air pipe (56), the exhaust plate (5) is provided with a sliding groove, the sliding tooth plate (51) is provided with two and is slidably connected with the sliding groove of the exhaust plate (5), the rotating rod (52) is provided with a plurality of rotating rods (52) which are rotatably connected with the exhaust plate (5), the gear (53) is coaxially fixedly connected with the rotating rod (52), the sliding tooth plate (51) is engaged with the gear (53), the spring (55) is fixedly connected in the sliding groove and fixedly connected between the outer wall of the sliding tooth plate (51) and the sliding groove, the guide plate (54) is fixedly connected with the rotating rod (52), and the air pipe (56) is fixedly communicated between the sliding tooth plate (51) and the transfer box (4) to drive the sliding tooth plate (51) to slide; The water tank (6) is communicated with the transfer box (4) through a pipeline, the water tank (6) is arranged on one side of the transfer box (4) and located on the top side of the steam oven liner (2), and the water tank (6) is provided with a reflux mechanism between the steam oven liner (2).

2. The air outlet adjustable fan system for a steam oven according to claim 1, wherein, The synchronous adjusting assembly comprises shaft rods (441), connecting rods (442) and sealing plates (443), the shaft rods (441) are provided in two, the two ends of the two shaft rods (441) are penetrated through the variable-direction three-way pipes (44) and are rotationally connected with the variable-direction three-way pipes (44), the connecting rods (442) are movably connected between the two shaft rods (441), one of the shaft rods (441) is movably connected with a motor outside, and the sealing plates (443) are fixedly connected with the shaft rods (441).

3. The air outlet adjustable fan system for a steam oven according to claim 1, wherein, The gear (53) is divided into two batches in equal number and is symmetrically arranged, and the sliding tooth plates (51) are opposite in movement direction.

4. The air outlet adjustable fan system for a steam oven according to claim 1, wherein, The backflow mechanism comprises a partition plate (61), a connecting pipe (62), a one-way valve (63), a conveying pipe (64), a drying box (65), a ventilation tail pipe (66) and a liquid changing pipe (67), the partition plate (61) is fixedly connected in the water tank (6), one end of the connecting pipe (62) is fixedly communicated with the variable-direction three-way pipe (44) through a pipeline, the other end of the connecting pipe (62) extends to the outside of the partition plate (61), the one-way valve (63) is fixedly connected on the outside of the water tank (6), the drying box (65) is movably connected on the frame (1), the conveying pipe (64) is connected between the one-way valve (63) and the drying box (65), the ventilation tail pipe (66) is communicated between the drying box (65) and the steaming and baking inner container (2), one end of the liquid changing pipe (67) is fixedly communicated with the bottom of the water tank (6), and the other end of the liquid changing pipe (67) is fixed on the bottom of the frame (1).

5. The fan system with adjustable air outlet for a steam oven according to claim 1, characterized in that, An air pump (68) is fixedly connected on the top of the frame (1), and a hose is connected between the output end of the air pump (68) and the conveying pipe (64).

6. The air outlet adjustable fan system for a steam oven according to claim 4, wherein The connecting pipe (62) extending to the bottom side in the partition plate (61) is provided with a backflow pipe (69), one end of the backflow pipe (69) penetrates through the partition plate (61) and is communicated with the water tank (6), and a one-way flow valve is arranged on the backflow pipe (69).

7. The air outlet adjustable fan system for a steam oven according to claim 1, wherein, The inner wall of the steaming and baking inner container (2) is provided with an embedded hot air plate (21), and the two inner walls of the steaming and baking inner container (2) are provided with side air holes (22), and the side air holes (22) are communicated with the ventilation tail pipe (66).

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