Adsorption drying structure and dish washing machine

Abstract

The invention relates to the technical field of dish washing machines, and discloses an adsorption drying structure and a dish washing machine. The adsorption drying structure comprises an air draft main channel and a zeolite drying module arranged in the air draft main channel, the air inlet end of the air draft main channel communicates with the top of a dish washing machine inner container, and the air outlet end of the air draft main channel communicates with the side face of the dish washing machine inner container; an exhaust fan and a zeolite drying module located at the downstream of the exhaust fan are arranged in the exhaust main channel, the exhaust main channel is provided with a bypass channel at the upstream of the zeolite drying module, and an air blowing heating module is arranged in the bypass channel; the lower half section of the air draft main channel extends in the vertical direction and is attached to the side face of the dish washing machine inner container in a back-attached mode to achieve heat transfer. On the basis of the upward floating characteristic of water vapor, the exhaust fan can effectively suck air only by applying certain negative pressure, the air suction path is greatly shortened, the retention time of damp and hot gas in the zeolite drying module is effectively prolonged, the zeolite can more efficiently adsorb moisture, and the drying effect is remarkably optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to an adsorption drying structure and a dishwasher. Background Art

[0002] As a commonly used appliance in modern kitchens, dishwashers can effectively reduce the burden of washing dishes. During the operation of dishwashers, the drying function is an important part.

[0003] Traditional dishwasher drying technology (such as the disclosed patents - CN102105096 and - CN107072463) mostly relies on the zeolite device set at the bottom to achieve the adsorption and drying of water vapor. Its air intake is usually located on the side of the inner tank and bypasses to the bottom to connect with the zeolite device. This layout has many disadvantages. Since the air intake is far away from the zeolite device, in the process of water vapor adsorption, in order to enable the humid and hot gas in the inner tank to reach the zeolite device at the bottom smoothly, the fan needs to provide a large wind pressure. Within a certain time and space, when the air volume is fixed, the greater the wind pressure, the greater the wind speed. However, too fast wind speed and wind pressure will make the residence time of humid and hot gas in the zeolite device too short. As a hygroscopic material, zeolite needs enough time to contact with humid and hot gas to fully absorb the moisture therein. However, the high wind speed caused by the long air suction path in the prior art cannot allow the zeolite to effectively absorb more moisture, thereby affecting the drying effect. In order to compensate for this defect, it is often necessary to set up one or more additional fluid regulating devices, such as setting a uniform device between the fan and the heating body, so as to make the surface of the heating body have the same air flow and fluid, thereby adjusting the wind speed and air volume. However, these additional devices not only increase the structural complexity of the dishwasher and increase the manufacturing cost, but also may reduce the overall reliability and stability due to the increase in components, which brings inconvenience to the production, use and maintenance of the dishwasher.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an adsorption drying structure and a dishwasher, which aims to shorten the suction path and prolong the residence time of the hot and humid gas in the zeolite drying module, so that the zeolite can adsorb moisture more efficiently and enhance the drying effect.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: An adsorption drying structure comprises an air exhaust main channel and a zeolite drying module arranged in the air exhaust main channel, wherein the air inlet end of the air exhaust main channel is communicated with the top of the inner tank of the dishwasher, and the air outlet end of the air exhaust main channel is communicated with the side of the inner tank of the dishwasher, an exhaust fan and a zeolite drying module located downstream of the exhaust fan are arranged in the air exhaust main channel, a bypass channel is arranged upstream of the zeolite drying module in the air exhaust main channel, and a blowing heating module is arranged in the bypass channel; the lower half of the air exhaust main channel extends vertically and is attached to the side of the inner tank of the dishwasher to realize heat transfer.

[0007] As a further improvement of the above technical solution, the zeolite drying module includes an outer box body with upper and lower openings, a grille arranged in the outer box body, and zeolite arranged in the compartments of the grille. The outer box body is provided with railings at the upper and lower openings to limit the zeolite from escaping from the grille.

[0008] As a further improvement of the above technical solution, the outer box body, the grille and the railing are all made of heat-conducting metal, and a plurality of air holes are arranged on the vertical plate body and the horizontal plate body of the grille.

[0009] As a further improvement of the above technical solution, in a top view, the compartments on the grille are divided into zeolite areas and ventilation areas, and a ventilation area is provided between adjacent zeolite areas on the left and right and between adjacent zeolite areas on the front and back.

[0010] As a further improvement of the above technical solution, the upper half of the main exhaust channel is in a 7-shape and is located at the top of the dishwasher inner tank. A first air inlet is provided at the top of the dishwasher inner tank, and a second air inlet corresponding to the first air inlet is provided in the upper half of the main exhaust channel. The exhaust fan connects the first air inlet and the second air inlet to extract the hot and humid gas in the dishwasher inner tank into the main exhaust channel.

[0011] As a further improvement of the above technical solution, a swingable baffle is provided at the junction of the bypass channel and the main exhaust channel, and the baffle is used to cut off the connection between the bypass channel and the main exhaust channel when the zeolite absorbs moisture and dries.

[0012] As a further improvement of the above technical solution, a pivot is provided in the bypass channel, and a connecting tube rotatably connected to the pivot is provided on the baffle. The baffle is rectangular and the length of the baffle is greater than the width of the main exhaust channel and the bypass channel.

[0013] As a further improvement of the above technical solution, the blowing and heating module includes a blower connected to the input end of the bypass channel and a heater arranged in the bypass channel.

[0014] As a further improvement of the above technical solution, the connection between the bypass channel and the main exhaust channel is an arc transition setting.

[0015] A dishwasher is also provided, comprising an inner container of the dishwasher and the above-mentioned adsorption and drying structure.

[0016] The beneficial effects of the present invention are as follows: 1. Since a hole is opened at the top of the inner tank of the dishwasher and an exhaust fan is arranged nearby, based on the floating characteristics of water vapor, the exhaust fan only needs to apply a certain negative pressure to effectively suck air, which greatly shortens the suction path. Compared with the traditional bottom exhaust design with a long path, it effectively prolongs the residence time of the hot and humid gas in the zeolite drying module, so that the zeolite can absorb moisture more efficiently, significantly optimizes the drying effect, and does not need to set up additional fluid regulating devices to make up for the problem of insufficient drying like the background technology, thereby simplifying the structure.

[0017] 2. By utilizing the heat generated by the hot rinse of the dishwasher, the heat is transferred to the zeolite drying module in the main exhaust channel via the wall of the dishwasher's inner tank to perform temperature compensation for zeolite regeneration and reduction, thereby reducing the heating energy consumption of the blowing heating module for zeolite regeneration and reduction, making the dishwasher more energy-saving and environmentally friendly.

[0018] 3. Since the blowing heating module is located in the bypass channel, the heater does not work during moisture absorption. Most of the humid hot gas flows directly along the main exhaust channel to the zeolite drying module, and only a small part enters the bypass channel, reducing the situation where water vapor remains on the surface of the blowing heating module. It not only reduces the problem of greater energy consumption for heating due to residual water vapor, but also reduces the safety hazards of extreme situations such as short circuit and leakage caused by residual water vapor, thereby improving safety and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure in which the adsorption drying structure is arranged on the inner tank of a dishwasher.

[0020] Figure 2 It is a schematic diagram of the internal structure of the adsorption drying structure when it is in the hygroscopic drying state. The arrow in the figure shows the flow direction of the moist hot gas.

[0021] Figure 3 This is a schematic diagram of the internal structure of the adsorption drying structure when it is in a heating regeneration state. The arrow in the figure shows the flow direction of the hot air.

[0022] Figure 4 A perspective view of a zeolite drying module.

[0023] Figure 5 This is a cross-sectional view of a zeolite drying module, in which the arrows indicate the flow direction of the hot and humid gas.

[0024] Explanation of main component symbols: 1-exhaust main channel, 11-upper section, 12-lower section, 13-exhaust fan, 2-bypass channel, 21-pivot, 3-blowing heating module, 31-heater, 32-blower, 5-baffle, 51-adapter cylinder, 7-zeolite drying module, 71-outer box body, 72-grille, 721-air vent, 73-rail, 74-zeolite, 75-zeolite area, 76-ventilation area, 8-dishwasher liner. DETAILED DESCRIPTION

[0025] The present invention provides an adsorption drying structure and a dishwasher. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0026] See also Figures 1 to 3 The present invention provides an adsorption drying structure, comprising an exhaust main channel 1 and a zeolite drying module 7 arranged in the exhaust main channel 1, the air inlet end of the exhaust main channel 1 is communicated with the top of the dishwasher inner tank 8, the air outlet end of the exhaust main channel 1 is communicated with the side of the dishwasher inner tank 8, the exhaust main channel 1 is provided with an exhaust fan 13 and the zeolite drying module 7 located downstream of the exhaust fan 13, the exhaust main channel 1 is provided with a bypass channel 2 upstream of the zeolite drying module 7, and the bypass channel 2 is provided with a blowing heating module 3; the lower half 12 of the exhaust main channel 1 extends vertically and is attached to the side of the dishwasher inner tank 8 to achieve heat transfer.

[0027] When the dishwasher is running, the exhaust fan 13 works to form a negative pressure in the exhaust main channel 1. Since the air inlet end of the exhaust main channel 1 is connected to the top of the dishwasher inner tank 8, the hot and humid gas in the dishwasher inner tank 8 is easily sucked into the exhaust main channel 1 by using the principle of water vapor floating. The hot and humid gas entering the exhaust main channel 1 will flow directly to the zeolite drying module 7 located downstream thereof under the action of the exhaust fan 13. During the moisture absorption process, the blowing and heating module 3 in the bypass channel 2 does not work, and the hot and humid gas contacts the zeolite drying module 7 in the exhaust main channel 1, and the zeolite drying module 7 absorbs and dries the moisture in the hot and humid gas. When the zeolite drying module 7 is saturated with moisture and needs to be regenerated and restored, the heat generated by the hot rinsing of the dishwasher is transferred to the zeolite drying module 7 in the exhaust main channel 1 through the inner tank wall. At the same time, the blowing and heating module 3 in the bypass channel 2 is started to generate hot air to blow to the zeolite 74 after moisture absorption, and cooperate with the heat transmitted from the inner tank wall to promote the regeneration and restoration of the zeolite 74.

[0028] The adsorption drying structure provided by the present invention has the following advantages: 1. Since a hole is opened at the top of the dishwasher inner tank 8 and an exhaust fan 13 is arranged nearby, based on the floating characteristics of water vapor, the exhaust fan 13 only needs to apply a certain negative pressure to effectively absorb air, which greatly shortens the air suction path. Compared with the traditional bottom exhaust design with a long path, it effectively prolongs the residence time of the hot and humid gas in the zeolite drying module 7, so that the zeolite 74 can absorb moisture more efficiently, significantly optimizes the drying effect, and does not need to set up additional fluid regulating devices to make up for the problem of insufficient drying like the background technology, thereby simplifying the structure.

[0029] 2. By utilizing the heat generated by the hot rinsing of the dishwasher, the heat is transferred to the zeolite drying module 7 in the exhaust main channel 1 via the wall surface of the dishwasher inner tank 8 to perform temperature compensation for the regeneration and reduction of the zeolite 74, thereby reducing the heating energy consumption of the blowing heating module 3 for the regeneration and reduction of the zeolite 74, and the dishwasher is more energy-saving and environmentally friendly.

[0030] 3. Since the blowing and heating module 3 is located in the bypass channel 2, the heater 31 does not work during moisture absorption, and most of the humid and hot gas directly flows along the exhaust main channel 1 to the zeolite drying module 7, and only a small part enters the bypass channel 2, thereby reducing the amount of water vapor remaining on the surface of the blowing and heating module. This not only reduces the problem of greater energy consumption for heating due to residual water vapor, but also reduces the potential safety hazards of extreme situations such as short circuit and leakage caused by residual water vapor, thereby improving safety and energy saving.

[0031] For details, please refer to Figure 4 The zeolite drying module 7 includes an outer box body 71 with upper and lower openings, a grille 72 arranged in the outer box body 71, and a zeolite 74 arranged in the compartment of the grille 72. The outer box body 71 is provided with railings 73 at the upper and lower openings to limit the zeolite 74 from escaping from the grille 72. The setting of the outer box body 71 provides a stable accommodation space for the zeolite 74, and the railings 73 at the upper and lower openings effectively limit the zeolite 74 from escaping from the grille 72, ensuring that during the operation of the dishwasher, even in the face of vibration, airflow impact, etc., the zeolite 74 can be firmly in the compartment of the grille 72, maintaining the integrity and stability of the overall structure of the zeolite drying module 7, and ensuring the continuous and effective performance of the drying function. The grille 72 divides the interior of the outer box body 71 into multiple compartments, so that the zeolite 74 can be distributed more evenly therein. In this way, when the hot and humid gas flows through the zeolite drying module 7, the gas can be fully and evenly contacted with the zeolite 74, avoiding the occurrence of local insufficient adsorption or airflow short circuit, etc., and improving the adsorption efficiency of the zeolite 74 to moisture and the uniformity of the overall drying effect.

[0032] In order to better achieve heat exchange of zeolite, the outer box body 71, grille 72 and railing 73 are all made of heat-conducting metal. The outer box body 71, grille 72 and railing 73 are all made of heat-conducting metal. During the regeneration and reduction process of zeolite 74, the heat transferred from the wall of the dishwasher inner tank 8 and the heat generated by the bypass channel 2 blowing heating module 3 can be quickly and evenly transferred to all parts of the zeolite 74. The zeolite 74 is heated more evenly, the desorption process of the adsorbed water in the zeolite 74 is accelerated, and the regeneration and reduction efficiency of the zeolite 74 is improved, thereby improving the recycling performance of the entire adsorption drying structure, ensuring that it always maintains a good drying effect during long-term operation.

[0033] In addition, multiple air holes 721 are arranged on the vertical plate body and the horizontal plate body of the grid 72, so that the hot and humid gas can be evenly dispersed between the zeolites 74 in each compartment when passing through the zeolite drying module 7, avoiding the situation where the local airflow is too fast or too slow, ensuring that the hot and humid gas has sufficient and uniform contact time and contact area with the zeolite 74, and further improving the adsorption efficiency of the zeolite 74 to moisture and the stability of the drying effect. At the same time, when the zeolite 74 is regenerated and restored, the hot air can also evenly pass through the air holes 721 and fully contact with the zeolite 74, making the regeneration process more efficient and thorough.

[0034] In fact, if all compartments of the grille 72 are provided with zeolites, it is difficult for the hot and humid gas to pass through the zeolite drying module 7 due to the obstruction of the zeolite. In this way, the hot and humid gas will pass through the zeolite drying module too slowly, and the moisture absorption efficiency will be low, which is not conducive to the rapid drying of the dishes in the inner tank of the dishwasher. Therefore, in this embodiment, in a top view, the compartments on the grille 72 are divided into zeolite areas 75 and ventilation areas 76, and a ventilation area 76 is provided between adjacent zeolite areas 75 on the left and right and between adjacent zeolite areas 75 on the front and back. Figure 5 As shown, the hot and humid gas enters the zeolite drying module 7 from top to bottom, a part of the hot and humid gas will contact the top of the zeolite area 75, and then gradually penetrate into the zeolite area 75 to absorb moisture, and the other part of the hot and humid gas will enter the ventilation area 76, and fully contact the side of the zeolite 74 through the dense air holes 721 to absorb moisture, thereby increasing the contact opportunity and contact area between the hot and humid gas and the zeolite 74, avoiding the situation where part of the zeolite 74 cannot fully exert its moisture absorption effect due to direct impact of the airflow, thereby significantly improving the moisture adsorption efficiency of the zeolite 74, making the drying effect more outstanding. On the other hand, the existence of the ventilation area 76 helps to balance the airflow resistance inside the entire zeolite drying module 7. While ensuring that there is enough hot and humid gas to pass through the zeolite area 75 and fully contact the zeolite 74 to absorb moisture, it can also make the airflow flow through the zeolite drying module 7 more smoothly, ensuring that the tableware in the dishwasher tank is quickly dried.

[0035] Specifically, the upper half 11 of the exhaust main channel 1 is in a 7-shape and is located at the top of the dishwasher inner tank 8. A first air inlet is provided at the top of the dishwasher inner tank 8, and a second air inlet corresponding to the first air inlet is provided at the upper half 11 of the exhaust main channel 1. The exhaust fan 13 connects the first air inlet and the second air inlet to extract the humid and hot gas in the dishwasher inner tank 8 into the exhaust main channel 1. Such a design makes full use of the natural characteristics of water vapor floating up, and can efficiently extract the humid and hot gas gathered at the top of the inner tank into the exhaust main channel 1 under the action of a small negative pressure of the exhaust fan 13. Compared with the traditional bottom or side suction method, it reduces the exhaust energy consumption and improves the exhaust efficiency, ensuring that more humid and hot gas can enter the drying process in time, thereby improving the overall drying effect. This layout makes the exhaust path relatively short and direct, reduces the airflow interference of other components or structures that may be caused to the humid and hot gas during the extraction process due to the complexity of the path, and makes the airflow entering the exhaust main channel 1 more stable and uniform. The stable airflow helps the subsequent zeolite drying module 7 to adsorb moisture more stably and efficiently, thereby improving the controllability and stability of the drying process, thereby ensuring the reliability and consistency of the drying function of the dishwasher.

[0036] A swingable baffle 5 is provided at the junction of the bypass channel 2 and the main exhaust channel 1, and the baffle 5 is used to cut off the bypass channel 2 from being connected to the main exhaust channel 1 when the zeolite 74 absorbs moisture and dries. When the dishes in the inner tank 8 of the dishwasher are washed and enter the drying stage, the exhaust fan 13 sucks the hot and humid gas in the inner tank into the main exhaust channel 1. At this time, due to the partition effect of the baffle 5, the bypass channel 2 is not connected to the main exhaust channel 1. The hot and humid gas flows directly to the zeolite drying module 7 in the main exhaust channel 1, avoiding the reduction of gas flow and unstable flow rate at the zeolite drying module 7 caused by the hot and humid gas being diverted to the bypass channel 2. The zeolite 74 absorbs moisture using its own characteristics, and the dried air is then sent back to the inner tank 8 of the dishwasher to dry the dishes.

[0037] Most importantly, when the bypass channel 2 is blocked, the hot and humid gas will not enter the air blowing heating module 3 area in the bypass channel 2, effectively preventing water vapor from remaining on the surface of the heating element. This not only avoids the problem of increased heating energy consumption due to residual water vapor, but also greatly reduces the possibility of electrical safety hazards such as short circuit and leakage caused by residual water vapor, improves the safety and stability of the dishwasher, reduces the frequency of fault maintenance caused by safety problems, and extends the service life of the equipment.

[0038] When the zeolite 74 needs to be regenerated, the blower 32 starts working, introducing external air into the bypass channel 2, and the heater 31 heats the air in the bypass channel 2 to form hot air. The hot air blows toward the swingable baffle 5. Since the baffle 5 is thin, the baffle 5 is pushed away from the bypass channel 2 by the force of the hot air, so that the bypass channel 2 is connected with the main exhaust channel 1, and the hot air can flow smoothly to the zeolite drying module 7. The hot air regenerates the zeolite 74 at high temperature and releases the moisture absorbed before, and the moisture is blown back to the inner tank 8 of the dishwasher.

[0039] It is understandable that when the generation of hot air is canceled, the baffle 5 will close the bypass channel 2 again under the action of its own gravity or the wind force of the exhaust fan 13.

[0040] Specifically, a pivot 21 is provided in the bypass channel 2, and a transfer tube 51 is provided on the baffle 5, which is rotatably connected to the pivot 21. The rotatable connection between the pivot 21 and the transfer tube 51 provides a stable rotation fulcrum for the baffle 5, so that the baffle 5 can swing smoothly during multiple opening and closing actions. The baffle 5 is rectangular and the length of the baffle 5 is greater than the width of the exhaust main channel 1 and the bypass channel 2. Through such a setting, in addition to the baffle 5 being able to effectively seal the entire bypass channel 2 under natural hanging, more importantly, after the baffle 5 is blown open, one end of the baffle 5 will abut against the inner wall of the exhaust main channel 1, thereby isolating the exhaust main channel 1, guiding all the hot air to flow to the zeolite drying module 7 without being diverted to the exhaust fan 13, so that the heat generated during the regeneration process can be concentrated on the zeolite drying module 7. This maximizes the utilization of heat, allowing the zeolite 74 to be regenerated more quickly and efficiently. Therefore, this design optimizes the heat distribution during the regeneration process, improves the working efficiency of the entire dishwasher drying and regeneration cycle, shortens the single cycle time, and saves users time and energy costs.

[0041] Specifically, the blowing heating module 3 includes a blower 32 connected to the input end of the bypass channel 2 and a heater 31 arranged in the bypass channel 2. The heater 31 is one of a PTC ceramic chip heater, a thick film heater and a graphene heater. The blower 32 can promote the stable flow of air, so that the heat generated by the heater 31 is evenly transferred to the zeolite 74 after moisture absorption. By accurately adjusting the power of the heater 31 and the wind speed of the blower 32, it is possible to provide a suitable temperature and air volume according to the regeneration requirements of the zeolite 74, accelerate the desorption rate of the water in the zeolite 74, efficiently complete the regeneration process of the zeolite 74, ensure the continuous and stable operation of the adsorption drying structure, and improve the recycling efficiency of the drying function of the dishwasher.

[0042] Preferably, the connection between the bypass channel 2 and the main exhaust channel 1 is an arc transition setting. The arc transition design can make the airflow flow more smoothly when it flows from the bypass channel 2 to the main exhaust channel 1, avoiding the sharp turning of the airflow and the generation of vortices caused by right angles or sharp corners. In this way, the resistance of the airflow can be significantly reduced, so that the hot air can reach the zeolite drying module 7 more efficiently, and the aerodynamic performance and energy transfer efficiency of the entire drying and regeneration system are improved.

[0043] In fact, the outer surface of the inner tank 8 of the dishwasher is provided with a convex surface corresponding to the main exhaust channel 1 and the bypass channel 2, and the convex surface is connected to the main exhaust channel 1 through a thermally conductive adhesive to achieve heat transfer. This design uses the residual heat of the inner tank of the dishwasher during hot rinsing, which can generally reach 55°C-60°C, greatly reducing the workload of the heater 31. This means that during the entire operation cycle of the dishwasher, the power consumption is significantly reduced, which helps users save electricity bills. It also conforms to the development trend of energy saving in modern home appliances, improves the energy utilization efficiency of the dishwasher, and reduces energy pressure on the environment.

[0044] The present invention also provides a dishwasher, comprising a dishwasher inner tank 8 and the above-mentioned adsorption drying structure. Based on the unique adsorption drying structure, the top suction and optimized air duct design are used to allow the zeolite 74 to efficiently adsorb moisture and improve the degree and efficiency of tableware drying. The heat of the inner tank thermal drift is used to compensate for the regeneration energy consumption of the zeolite 74, and the reasonable design of the bypass channel 2 and the baffle 5 reduces the operating power consumption, thereby achieving good energy-saving effects. The layout of the bypass channel 2 and the movable setting of the baffle 5 reduce the hidden dangers of short circuit leakage caused by residual water vapor, and the safety is high.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. An adsorption drying structure, characterized in that: The invention comprises an exhaust main channel (1) and a zeolite drying module (7) arranged in the exhaust main channel (1); the air inlet end of the exhaust main channel (1) is connected to the top of the dishwasher inner tank (8); the air outlet end of the exhaust main channel (1) is connected to the side of the dishwasher inner tank (8); the exhaust fan (13) and the zeolite drying module (7) located downstream of the exhaust fan (13) are arranged in the exhaust main channel (1); a bypass channel (2) is arranged upstream of the zeolite drying module (7); and a blowing heating module (3) is arranged in the bypass channel (2); the lower half (12) of the exhaust main channel (1) extends vertically and is attached to the side of the dishwasher inner tank (8) to achieve heat transfer.

2. The adsorption drying structure according to claim 1, characterized in that: The zeolite drying module (7) comprises an outer box body (71) with upper and lower openings, a grille (72) arranged in the outer box body (71), and zeolite (74) arranged in a compartment of the grille (72); the outer box body (71) is provided with railings (73) at the upper opening and the lower opening to prevent the zeolite (74) from escaping from the grille (72).

3. The adsorption drying structure according to claim 2, characterized in that: The outer box body (71), the grille (72) and the railing (73) are all made of heat-conducting metal, and a plurality of air holes (721) are arranged on the vertical plate body and the horizontal plate body of the grille (72).

4. The adsorption drying structure according to claim 3, characterized in that: In a top view, the compartments on the grille (72) are divided into zeolite areas (75) and ventilation areas (76), and a ventilation area (76) is provided between adjacent zeolite areas (75) on the left and right and between adjacent zeolite areas (75) on the front and back.

5. The adsorption drying structure according to claim 1, characterized in that: The upper half (11) of the main exhaust passage (1) is in the shape of a figure 7 and is located at the top of the inner tank (8) of the dishwasher. A first air inlet is provided at the top of the inner tank (8) of the dishwasher. A second air inlet corresponding to the first air inlet is provided in the upper half (11) of the main exhaust passage (1). The exhaust fan (13) connects the first air inlet and the second air inlet to extract the hot and humid air in the inner tank (8) of the dishwasher into the main exhaust passage (1).

6. The adsorption drying structure according to claim 1, characterized in that: A swingable baffle (5) is provided at the junction of the bypass channel (2) and the main exhaust channel (1), and the baffle (5) is used to block the bypass channel (2) from being connected to the main exhaust channel (1) when the zeolite (74) absorbs moisture and dries.

7. The adsorption drying structure according to claim 6, characterized in that: A pivot (21) is provided in the bypass channel (2), and a switching cylinder (51) rotatably connected to the pivot (21) is provided on the baffle plate (5). The baffle plate (5) is rectangular and the length of the baffle plate (5) is greater than the width of the main exhaust channel (1) and the bypass channel (2).

8. The adsorption drying structure according to claim 1, characterized in that: The blowing and heating module (3) comprises a blower (32) connected to the input end of the bypass channel (2) and a heater (31) arranged in the bypass channel (2).

9. The adsorption drying structure according to claim 1, characterized in that: The connection between the bypass channel (2) and the main exhaust channel (1) is arranged in an arc transition.

10. A dishwasher, characterized in that It comprises a dishwasher inner tank (8) and an adsorption drying structure as claimed in any one of claims 1 to 9.

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