A dishwasher with a ventilation system

Abstract

The present invention discloses a dishwasher with a ventilation system, comprising: an inner container, a washing space is formed in the inner container, an air outlet is provided on the front panel of the inner container, and an air inlet is provided on the rear panel of the inner container; an air inlet duct, arranged on the rear panel of the inner container and communicated with the air inlet, a heating module is arranged in the air inlet passage, and the heating module is connected to a controller; an air exhaust duct, arranged on the front panel of the inner container and communicated with the air outlet, a blower is arranged in the air exhaust passage, and the blower is connected to the controller. In the dishwasher with a ventilation system of the present invention, by arranging a heating module in the air inlet passage to heat the air entering the inner container, and then drying the tableware, the problem of moisture residue breeding bacteria is avoided. By arranging the air inlet duct on the rear panel of the inner container and the air exhaust duct on the front panel of the inner container, with air inlet from the rear and air exhaust from the front, the high-humidity gas is discharged from the front end of the dishwasher to the external space, preventing the accumulation at the rear from causing the electrical appliances to be affected with damp for a long time.

Description

Technical Field

[0001] The present invention relates to a dishwasher, and more particularly to a dishwasher with a ventilation system. Background Art

[0002] After the dishwasher finishes washing, it is necessary to quickly dry the water remaining on the tableware to reduce the growth of bacteria in the dishwasher cavity. In addition, there will be garbage residue after the dishwasher finishes washing. If the residual garbage is not processed in time, bacteria will grow and produce odors in the humid environment inside the dishwasher after a period of time, thus polluting the tableware and the surrounding environment, and posing a threat to the health and dining safety of users. The drying and ventilation technologies can effectively solve such problems.

[0003] Most of the dishwashers on the market now need to be equipped with a dedicated condenser. The setting of the condenser not only makes the structure of the entire dishwasher system complex, but also increases the power consumption, resulting in a waste of resources. In addition, this structure occupies a large space and is not suitable for application in small dishwashers. Summary of the Invention

[0004] In order to overcome the deficiencies of the existing problems, the present invention provides a dishwasher with a ventilation system, which has a simple and compact structure, strong versatility, and is particularly suitable for application in small dishwashers.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve:

[0006] A dishwasher with a ventilation system, comprising:

[0007] An inner container, in which a washing space is formed. An air outlet is provided on the front panel of the inner container, and an air inlet is provided on the rear panel of the inner container;

[0008] An air inlet duct, provided on the rear panel of the inner container and communicating with the air inlet;

[0009] An air outlet duct, provided on the front panel of the inner container and communicating with the air outlet. A fan is provided in the air outlet duct, and the fan is connected to a controller.

[0010] Further, the air outlet duct includes a housing plate, and further includes:

[0011] An air suction channel, located inside the housing plate, and the air suction channel communicates with the air outlet of the inner container;

[0012] An exhaust channel, located at the lower end of the housing plate, and the air inlet of the exhaust channel communicates with the air outlet of the fan;

[0013] The blower cavity is located inside the shell plate and is formed between the air intake passage and the exhaust passage. A blower is provided in the blower cavity, and the air inlet of the blower is communicated with the air outlet of the air intake passage.

[0014] Further, the air intake passage is composed of a plurality of connecting segments connected in sequence, and the plurality of connecting segments make at least one turn-back.

[0015] Further, the air intake passage includes a lower side segment and an upper side segment with an acute angle therebetween, the direction of the angle faces the blower cavity, the lower side segment is arranged horizontally, and the upper side segment extends obliquely upward from the lower side segment.

[0016] Further, an air volume adjustment opening is formed on one side of the blower cavity facing the angle, a wind baffle is arranged at the air volume adjustment opening, and the wind baffle is slidably connected with the frame edge of the air volume adjustment opening.

[0017] Further, a check valve plate is arranged at the connection port of the upper side segment and the blower cavity, and the check valve plate is used for unidirectionally conducting between the air intake passage and the blower cavity.

[0018] Further, an exhaust auxiliary structure is detachably connected to the bottom port of the exhaust passage.

[0019] Further, the air inlet duct includes a housing, the housing includes a base plate and a surrounding plate formed around the base plate, an air inlet passage is formed inside the housing, a passage inlet for communicating the air inlet passage with the external space is formed on the base plate or the surrounding plate, and the air inlet passage is communicated with the air inlet of the inner tank.

[0020] Further, a first water baffle is arranged below the passage inlet, the first water baffle includes two segments with an acute angle, the lower segment extends obliquely upward from below the passage inlet, and the upper segment extends back toward the passage inlet.

[0021] Further, a second water baffle is arranged above the passage inlet, and the second water baffle extends obliquely downward from above the passage inlet.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are as follows: The dishwasher with a ventilation system of the present invention is provided with a heating module in the air inlet passage to heat the air entering the inner tank, thereby drying the tableware, avoiding the problem of moisture residue breeding bacteria, and by arranging the air inlet duct on the rear back plate of the inner tank and the exhaust duct on the front panel of the inner tank, with air inlet from the rear and air outlet from the front, the high-humidity gas is discharged from the front end of the dishwasher to the external space, preventing the accumulation at the rear from causing the electrical appliances to be affected by moisture for a long time.

[0023] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is a schematic structural diagram of the inner tank in an embodiment of the dishwasher proposed by the present invention;

[0026] Figure 2 is a schematic diagram of the assembly relationship between the exhaust air duct and the inner tank in an embodiment of the dishwasher proposed by the present invention;

[0027] Figure 3 is a schematic diagram of the assembly relationship between the intake air duct and the inner tank in an embodiment of the dishwasher proposed by the present invention;

[0028] Figure 4 is a schematic diagram of the rear back plate of the inner tank in an embodiment of the dishwasher proposed by the present invention;

[0029] Figure 5 is a partial structural schematic diagram of the exhaust air duct in an embodiment of the dishwasher proposed by the present invention;

[0030] Figure 6 is Figure 5 a schematic diagram of one side structure of;

[0031] Figure 7 is Figure 6 a sectional view taken along line B of;

[0032] Figure 8 is Figure 5 a schematic diagram of the other side structure of;

[0033] Figure 9 is a schematic diagram of the assembly relationship between the intake air duct and the inner tank in another embodiment of the dishwasher proposed by the present invention;

[0034] Figure 10 is Figure 9 a partial exploded view of;

[0035] Figure 11 is an exploded view of the assembly relationship between the blower and the exhaust air duct in an embodiment of the dishwasher proposed by the present invention;

[0036] Figure 12 isFigure 11 Assembly drawing of;

[0037] Figure 13 is Figure 11 Partial structural schematic diagram of the sealing sleeve in;

[0038] Figure 14 is Figure 12 Schematic diagram of the bottom view of;

[0039] Figure 15 Schematic diagram of the structure of the air inlet duct in an embodiment of the dishwasher proposed by the present invention;

[0040] Figure 16 is Figure 15 Schematic diagram of the inner side structure of;

[0041] Figure 17 is Figure 16 Sectional view taken along line A of; Specific implementation manner

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0043] Embodiment 1, this embodiment proposes a dishwasher with a ventilation system, as Figures 1 - 4 shown, the dishwasher includes:

[0044] Inner container 11, a washing space is formed in the inner container 11, an air outlet 111 is opened on the front panel 110 of the inner container 11, and an air inlet 113 is opened on the rear panel 112 of the inner container 11;

[0045] Air inlet duct 12, arranged on the rear panel 112 of the inner container 11 and communicated with the air inlet 113;

[0046] Exhaust duct 13, arranged on the front panel 110 of the inner container 11 and communicated with the air outlet 111, a fan 15 is arranged in the exhaust duct 13, and the fan 15 is connected to the controller.

[0047] Among them, the controller is the controller of the dishwasher, used to control the dishwasher to complete actions such as water inlet, washing, drainage, drying, etc., and is arranged in the electric control box of the dishwasher.

[0048] The dishwasher of this embodiment can be a drawer - type dishwasher or a sink - type dishwasher. A washing space is formed in the inner tank 11, and tableware such as bowls, plates, cups, and chopsticks can be placed in the inner tank for washing. By opening an air inlet, an air outlet on the inner tank and setting a heating module in the air inlet, channels for air circulation are formed on the outer side of the rear part, inside, and outer side of the front part of the inner tank. After the washing is completed, the blower is turned on to introduce external air into the inner tank, and the moisture on the surface of the tableware is carried away through air flow, realizing the drying of the tableware, which can solve the problem that water stains remaining on the surface of the tableware are prone to breed bacteria. By opening the air inlet on the rear back panel of the inner tank and the air outlet on the front panel of the inner tank, air can enter from the rear and exit from the front. Since the dishwasher is generally assembled in a cabinet and its rear part faces the inside of the cabinet, by discharging the relatively humid air from the front of the dishwasher to the external space, the condensation of moisture in the cabinet is prevented, and the cabinet is protected from moisture and its service life is not shortened.

[0049] A heating module 14 is also provided in the air inlet duct 12. The heating module 14 is connected to a controller (not shown in the figure). The heating module 14 is used to heat the air entering the inner tank to realize the drying of the tableware. When the drying function is not required, the heating module is not turned on, and the blower is turned on to introduce natural air, so that the air inside the inner tank can be exchanged with fresh external air in a timely manner, thereby reducing the generation of peculiar smell inside the cavity and realizing the ventilation function.

[0050] Such as Figure 2 、 Figure 5 The exhaust air duct 13 is assembled on the outer side of the front panel 110, and it is used to lead the air out of the inner tank to the outside. As a preferred embodiment, the exhaust air duct 13 includes a shell plate 131, and further includes:

[0051] An air suction channel 132, located inside the shell plate 131, and the air suction channel 132 is communicated with the air outlet 111 of the inner tank; the air suction channel 132 can be formed by the surrounding edge formed on the inner side of the shell plate 131 and the shell plate 131 together, or can be an independent duct structure fixed on the inner side of the shell plate 131, such as an air duct, etc., which all belong to the protection scope of the present invention. In this embodiment, the case where the air suction channel 132 is formed by the surrounding edge 132a formed on the inner side of the shell plate 131 and the shell plate 131 together is taken as an example for illustration. The surrounding edge 132a is fixedly sealed with the front panel 110.

[0052] In order to facilitate the fixing of the exhaust air duct 13 on the front panel of the inner tank 11, ribs that match the surrounding edge 132a of the exhaust air duct 13 are formed on the front panel of the inner tank 11. The surrounding edge 132a of the exhaust air duct 13 is aligned with the ribs and fixed by bonding or welding.

[0053] The exhaust passage 133 is located at the lower end of the shell plate 131. The air inlet of the exhaust passage 133 is communicated with the air outlet of the fan 15. By arranging the exhaust passage 133 at the lower end of the shell plate 131, the outlet of the exhaust passage 133 faces downward, and the air is blown downward. On the one hand, the air outlet direction is towards the floor tile direction, avoiding directly blowing on the human body and causing discomfort. On the other hand, enough space can be reserved above the exhaust passage for arranging the fan cavity and the air inlet duct.

[0054] The fan cavity 134 is located inside the shell plate 131 and is formed between the air suction passage 132 and the exhaust passage 133. A fan 15 is arranged in the fan cavity 134, and the air inlet of the fan 15 is communicated with the air outlet of the air suction passage 132. When the fan 15 operates to discharge the air in the inner tank 11 through the exhaust air duct 13, first, the fan 15 sucks the air in the air suction passage 132, and negative pressure is generated in the air suction passage 132. Since the air suction passage 132 is directly communicated with the air discharge port 111 of the inner tank, the air in the inner tank is sucked into the air suction passage 132 and then blown out from the exhaust passage 133 through the fan. In this solution, the exhaust air duct 13 is arranged with the air suction passage 132, the fan cavity 134, and the exhaust passage 133 connected in sequence, which is beneficial to improving the compactness of the exhaust air duct and reducing its occupied volume. When applied to a dishwasher, it does not limit the volume of the dishwasher and can be applied to commercial large dishwashers and household small dishwashers. Especially for the application on small dishwashers with a small space, it effectively solves the problem of function limitation due to volume limitation.

[0055] Since the air suction passage 132 is directly communicated with the air discharge port 111 of the inner tank, when the air in the inner tank 11 is discharged, it first passes through the air suction passage 132. The air in the inner tank has a high humidity and contains a lot of water vapor. Preferably, the air suction passage 132 is composed of multiple connecting segments connected in sequence, and the multiple connecting segments are folded back at least once. By extending the air suction passage 132, on the one hand, it can prevent water from overflowing from the air discharge port 111 during dishwashing, and on the other hand, it enables the high-humidity air to condense into water droplets when flowing through the air suction passage 132 and then flow back into the inner tank through the air discharge port 111 of the inner tank.

[0056] In order to both extend the air suction passage 132 and enable the condensed water in the air suction passage 132 to converge smoothly and finally be discharged into the inner tank 11, the air suction passage 132 includes a lower segment 1321 and an upper segment 1322, and the included angle between the lower segment 1321 and the upper segment 1322 is The direction faces the blower cavity 134. The lower section 1321 is arranged horizontally, and the upper section 1322 extends obliquely upward from the lower section 1321. Or the lower section 1321 is arranged obliquely upward from its starting end and then connects with the upper section to form an acute angle. The condensed water in the upper section 1322 and the lower section 1321 flows downward along the channel under the action of gravity and finally flows into the inner tank.

[0057] In order to smoothly discharge the converged condensed water from the suction channel 132 into the inner tank 11, as Figure 7 shown, preferably, the peripheral edge 132a on the lower side of the lower section 1321 is arranged obliquely downward with respect to the air flow channel corresponding to the lower section 1321. The converged condensed water flows into the inner tank along the obliquely downward peripheral edge 132a under the action of gravity.

[0058] The end edge of the peripheral edge 132a is turned downward to form a diversion flange 132b. On the one hand, the diversion flange 132b serves to divert the condensed water into the inner tank. On the other hand, it can make the peripheral edge 132a closely fit the outer side of the inner tank to prevent the condensed water from flowing out of the gap to the outside of the inner tank.

[0059] An arc-shaped notch 132c is provided at the outer corner position of the diversion flange 132b. The arc-shaped notch 132c serves to converge the condensed water and can also increase the slope of the end edge of the peripheral edge 132a. When the condensed water converges here, it is quickly introduced into the inner tank.

[0060] As Figure 8 shown, a wire clip 135 is formed in the space surrounded by the lower section 1321, the upper section 1322, and the blower cavity 134 for clamping the wires of the blower 15. The space is reasonably utilized to prevent the wires from being messy and affecting the assembly.

[0061] In order to save costs, the dishwasher in this solution preferably uses a fixed-frequency blower with a lower cost. Since the fixed-frequency blower cannot be flexibly adjusted according to the load once selected, therefore, as Figure 5 、 Figure 6 shown, the blower cavity 134 faces the included angle On one side of it, an air volume adjustment opening 1341 is provided. At the air volume adjustment opening 1341, a wind deflector 1342 is arranged. The wind deflector 1342 is slidably connected to the frame edge of the air volume adjustment opening 1341. The blower cavity 134 is communicated with the outside through the air volume adjustment opening 1341. When the exhaust air duct 13 of this structure is applied to dishwashers with different capacities, the opening degree of the air volume adjustment opening 1341 can be adjusted according to the actual load of the dishwasher, so that the air outlet volume is adapted to the air inlet volume, without the need to re-open the mold for production or replace the blower, improving its applicability and being conducive to reducing production costs. The way that the wind deflector 1342 is slidably connected to the frame edge of the air volume adjustment opening 1341 is convenient for adjusting the opening degree of the air volume adjustment opening 1341. Moreover, the sliding connection method can have good retention after adjusting the air volume adjustment opening and prevent random changes in the opening degree.

[0062] As Figure 5 shown, guide sliding channels 1343 are arranged on the frame edges on both sides of the air volume adjustment opening 1341. The wind deflector 1342 is inserted into the guide sliding channels 1343. The sliding direction of the wind deflector 1342 is perpendicular to the shell plate 131, and the height of the wind deflector 1342 relative to the shell plate 131 is not lower than the height of the surrounding edge enclosing the blower cavity, that is, when the wind deflector 1342 slides to the bottommost position, it can completely block the air volume adjustment opening 1341.

[0063] There is a connection port 1344 between the upper section 1322 and the blower cavity 134 for connecting the two channels. The upper edge of the connection port 1344 is inclined towards the suction channel 132, which is conducive to the condensed water flowing back to the suction channel 132 and preventing it from entering the blower cavity 134.

[0064] As Figure 6 shown, a check valve piece 136 is arranged at the connection port between the upper section 1322 and the blower cavity 134. The check valve piece 136 is used for unidirectionally conducting between the suction channel 132 and the blower cavity 134. When the blower works, the air pressure on the side of the check valve piece 136 facing the blower cavity 134 is low, and the air pressure on the side facing the suction channel 132 is high. The check valve piece 136 rotates around the axis towards the blower cavity 134 under the suction of the blower 15, conducting the suction channel 132 and the blower cavity 134. When the blower stops working, the check valve piece 136 remains in a drooping state under the action of gravity, blocking between the blower cavity 134 and the suction channel 132. The check valve piece 136 can prevent air from entering the suction channel and then backflowing into the inner tank when the air pressure in the blower cavity 134 rises.

[0065] As a preferred embodiment, as Figure 6As shown, one end of the check valve piece 136 is hinged to the inner side of the edge stop of the fan cavity. A stop block 1345 is provided at the connection port 1344. The check valve piece 136 is located on the side of the stop block 1345 facing the fan cavity 134. Therefore, the check valve piece 136 can rotate unidirectionally around the axis towards the fan cavity and is blocked by the stop block and cannot rotate around the axis towards the suction passage 132.

[0066] As Figure 6 shown, the exhaust passage 133 is cylindrical, with a through cavity inside. Its top port is connected to the air outlet of the fan 15, and the bottom port discharges air outwards. In order to reduce the air outlet noise, the installation direction of the exhaust passage 133 is kept consistent with the opening direction of the fan air outlet to prevent noise caused by air duct obstruction.

[0067] Due to the space limitation of the dishwasher, both the length and width of the exhaust passage 133 are limited. In order to smoothly discharge the air in the inner tank and at the same time make the discharged moisture diffuse towards the periphery as much as possible to prevent the electrical components of the dishwasher from getting wet, in this embodiment, it is preferably that the bottom port of the exhaust passage 133 is detachably connected with an exhaust auxiliary structure 137. The exhaust auxiliary structure 137 is arranged along the air outlet direction, and its air outlet is still downward. The exhaust auxiliary structure 137 extends the exhaust passage 133 and diffuses the discharged moisture to a position away from the dishwasher.

[0068] As Figure 9 、 Figure 10 shown, the exhaust auxiliary structure 137 includes a main body 1371 and a connecting part 1372. The connecting part 1372 is located at the top of the main body 1371 and is used to connect with the bottom port of the exhaust passage 133. The connecting part 1372 has a through hole. The main body 1371 has an expansion cavity with a narrow upper part and a wide lower part. The through hole is communicated with the expansion cavity, and the bottom of the expansion cavity is communicated with the outside. The gas discharged from the exhaust passage 133 enters the expansion cavity through the through hole. The design of the expansion cavity with a narrow upper part and a wide lower part can diffuse the gas to the surrounding, reduce the exhaust pressure, lower the air outlet noise, and at the same time play a role in exhaust guiding.

[0069] In order to prevent the exhaust auxiliary structure 137 from falling off the exhaust passage 133, an auxiliary fixing part 1373 is provided on the outer surface of at least one shoulder of the main body 1371, and the auxiliary fixing part 1373 is detachably fixed to the fixing structure on the front panel of the inner tank 11.

[0070] In order to achieve convenient disassembly and assembly, in this embodiment, the auxiliary fixing part 1373 is implemented by a hook, and it can be hung on the hanging rack 115 on the front panel 110, and the disassembly is also very convenient.

[0071] The blower 15 is located in the blower cavity 134. The air inlet of the blower 15 is connected to the suction passage 132, which is used to suck the air in the inner container through the suction passage 132. The air outlet of the blower 15 is connected to the exhaust passage 133, which is used to discharge the sucked air to the outside of the dishwasher. To improve the sealing performance of the blower 15 in the blower cavity 134, as Figures 11 - 13 shown, a sealing sleeve 16 is provided between the blower 15 and the blower cavity 134.

[0072] As Figure 13 shown, the sealing sleeve 16 includes a retaining ring 161 and a nozzle 162. The retaining ring 161 is fixedly connected to the nozzle 162. The retaining ring 161 and the side of the nozzle 162 form a closed space. The blower 15 is assembled in this closed space, and the air outlet of the blower 15 is fixedly fitted with the nozzle 162. The retaining ring 161 is arranged along the circumferential direction of the blower 15. The nozzle 162 is arranged at the air outlet of the blower. The blower 15 does not directly contact the blower cavity 134. The sealing sleeve 16 plays a sealing role on the one hand and a vibration damping role on the other hand, buffering the vibration generated when the blower rotates and preventing it from being transmitted to the dishwasher, resulting in the vibration of the whole machine.

[0073] The nozzle 162 is set according to the shape of the air outlet of the blower 15. In this embodiment, the nozzle 162 has a long cylindrical structure with a rectangular cross-section. One end of it is connected to the air outlet of the blower 15, and the other end is inserted into the exhaust passage 133 to achieve the sealed connection between the blower cavity 134 and the exhaust passage 133. The plane in the diameter direction of the retaining ring 161 is perpendicular to the plane of the mouth of the nozzle 162. The two ends of the retaining ring 161 are respectively connected to the opposite sides of the nozzle 162. Therefore, the retaining ring 161, the two long sides of the nozzle 162, and the transitional connection of the two side edges of the nozzle 162 form a closed space, and the body of the blower 15 is arranged in this closed space.

[0074] A first outwardly turned edge 163 is formed around the bottom port of the nozzle 162. During assembly, the bottom port of the nozzle 162 is inserted into the exhaust passage 133. As Figure 14 shown, the first outwardly turned edge 163 is in close contact with the inner wall of the exhaust passage 133, realizing the seal between the air outlet of the blower 15 and the exhaust passage 133, preventing air leakage, and at the same time, the first outwardly turned edge 163 plays a role in isolating the blower 15 from the exhaust passage 133, preventing the blower 15 from transmitting vibration to the exhaust passage 133.

[0075] Similarly, a second outwardly turned edge 164 is formed at the end of the retaining ring 161 facing the shell plate 131. The second outwardly turned edge 164 isolates the side of the blower 15 from the shell plate 131, preventing the blower 15 from transmitting vibration to the shell plate 131.

[0076] At least one convex protrusion 165 is formed on the retaining ring 161 along its major axis direction, and a positioning post 166 is formed on the convex protrusion 165. The positioning post 166 plays a role in positioning the assembly position of the sealing sleeve 16. A clamping portion 1346 is formed on the retaining edge of the fan cavity 134, and the positioning post 166 is inserted into the clamping opening of the clamping portion 1346.

[0077] In order to be able to fix the sealing sleeve 16 simultaneously, a ring of bosses 1661 is formed on the positioning post 166. A notch 1347 is opened on one side of the clamping portion 1346. The positioning post 166 is inserted into the clamping opening from the notch 1347. The boss 1661 and the convex protrusion 165 are located below the clamping portion 1346, and the boss 1661 is located above the clamping portion 1346. The boss 1661 is blocked by the clamping portion 1346, which can prevent the positioning post 166 from being pulled out downward from the clamping opening in the length direction of the positioning post.

[0078] The boss 1661 and the positioning post 166 can be an integrally formed structure, which is convenient for production and manufacturing.

[0079] Preferably, there are two convex protrusions 165, which are symmetrically arranged on both sides of the vertical central axis of the retaining ring 161, preventing the retaining ring 161 from moving left and right and improving the stability of fixation.

[0080] The sealing sleeve 16 can be made of any one of rubber, silica gel, latex, and plastic, or other flexible materials that are easy to shape and have good airtightness can also be used.

[0081] Such as Figure 3 、 Figure 15 、 Figure 16 As shown, the air inlet duct 12 is arranged outside the rear back plate 112 of the inner tank 11. As shown in the figure, the structure of the air inlet duct 12 includes a housing, and the housing includes a base plate 121 and a surrounding plate 122 formed around the base plate 121. An air inlet channel is formed inside the housing. A channel inlet 124 for connecting the air inlet channel to the external space is opened on the base plate 121 or the surrounding plate 122. The air inlet channel is communicated with the air inlet 113 of the inner tank 11. When the fan in the exhaust air duct 13 at the front end of the inner tank 11 is turned on, the air in the inner tank is sucked and exhausted, and the pressure in the inner tank decreases. Accordingly, the air outside the rear part of the inner tank 11 enters the air inlet channel through the channel inlet 124, and then enters the inner tank 11 through the air inlet 113 to supplement air to the inner tank 11.

[0082] At the lower end of the air inlet channel, a channel outlet 125 is formed that coincides with the air inlet 113 of the inner container 11. The channel outlet 125 is surrounded by a first retaining rib 1251 and a surrounding plate 122. There is a spacing between the inner end of the first retaining rib 1251 and the substrate 121 to facilitate air passing through this spacing. Here, the inner end of the first retaining rib 1251 refers to the end close to the inner container 11, and the outer end of the first retaining rib 1251 refers to the end far from the inner container 11. By setting the channel outlet 125 and the air inlet 113, it is convenient to align and fix the air inlet duct 12 with the air inlet 113 on the inner container. The air inlet 113 of the dishwasher is naturally kept open, that is, even during the washing process, the air inlet 113 is still connected to the outside through the air inlet duct 12, and there is no need to specifically set a control valve or the like to control the opening and closing of the air inlet duct. To prevent the water in the inner container 11 from entering the air inlet channel during washing and then spilling out of the channel inlet to the outside of the inner container 11, the first retaining rib 1251 plays a role in initially blocking the dishwashing water and preventing the dishwashing water from moving along the air inlet channel towards the channel inlet 124.

[0083] As Figure 16 、 Figure 17 shown, a second retaining rib 1231 is formed above the first retaining rib 1251. The inner end of the second retaining rib 1231 is fixed to the substrate 121, and the outer end does not extend beyond the edge of the surrounding plate. That is, the second retaining rib 1231 and the first retaining rib 1251 are arranged in an interleaved manner, enclosing the air duct in an S shape. Here, the inner end of the second retaining rib 1231 refers to the end close to the inner container 11, and the outer end of the second retaining rib 1231 refers to the end far from the inner container 11. During the washing process of the dishwasher, part of the water entering the air inlet channel is first blocked by the first retaining rib 1251, and most of the water returns to the inner container under the action of gravity. A small part of the water continues to move upward through the inner end of the first retaining rib 1251 and is then blocked by the second retaining rib 1231 at this time. Therefore, the water cannot reach the channel inlet 124 and all returns to the inner container, preventing the dishwashing water from overflowing from the channel inlet 124. After the external air enters the air inlet duct 12 through the channel inlet 124, it sequentially reaches the inner end of the second retaining rib 1231 through the outer end of the second retaining rib 1231, and then enters the channel outlet 125 through the space between the first retaining rib 1251 and the substrate 121, and finally enters the inner container 11 through the air inlet 113. The air inlet channel has an S-shaped layout.

[0084] The channel inlet 124 is opened on the surrounding plate 122 and is located above the channel outlet 125. By increasing the height of the channel inlet 124, it can play a role in extending the air inlet channel and preventing the dishwashing water from overflowing.

[0085] A first water baffle 126 is provided below the channel inlet 124, and the first water baffle 126 can block the water passing through the second retaining rib 1231.

[0086] Above the channel inlet 124, a second water baffle 127 is provided. On the one hand, the second water baffle 127 can stop the water passing through the first water baffle 126. On the other hand, the second water baffle 127 is inclined downward from above the channel inlet 124, which can play a guiding role in the water passing above the second water baffle 127, making it flow back into the inner tank along the air duct from a position far away from the channel inlet 124.

[0087] As Figure 16 shown, the first water baffle 126 includes two sections with an acute angle. The lower section extends obliquely upward from below the channel inlet and can play a role in buffering the water flow. The upper section extends back toward the channel inlet 124 and can play a further guiding role in the water flowing down from the first water baffle 126. The included angle of the first water baffle 126 faces the channel inlet 124.

[0088] The top end of the first water baffle 126 is not higher than the upper edge of the channel inlet 124 to prevent blocking the air path.

[0089] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A dishwasher with a ventilation system, characterized in that, Comprising: Inner liner, a washing space is formed in the inner liner, an air exhaust opening is formed on the front panel of the inner liner, and an air inlet is formed on the rear panel of the inner liner; Air inlet duct, arranged on the rear panel of the inner liner and communicated with the air inlet; Air exhaust duct, arranged on the front panel of the inner liner and communicated with the air exhaust opening, a blower is arranged in the air exhaust duct, and the blower is connected with a controller; A sealing sleeve is arranged between the blower and the blower cavity, the sealing sleeve includes a retaining ring and a nozzle, the retaining ring is fixedly connected with the nozzle, a closed space is formed between the sealing sleeve and the side of the nozzle, the blower is assembled in the closed space, and the air outlet of the blower is fixedly fitted with the nozzle. The retaining ring is arranged along the circumferential direction of the blower, the nozzle is arranged at the air outlet of the blower, one end of the nozzle is connected with the air outlet of the blower, and the other end is inserted into the exhaust passage.

2. The dishwasher according to claim 1, characterized in that, The air exhaust duct includes a shell plate, and further includes: Air suction passage, located inside the shell plate, and the air suction passage is communicated with the air exhaust opening of the inner liner; Exhaust passage, located at the lower end of the shell plate, and the air inlet of the exhaust passage is communicated with the air outlet of the blower; Blower cavity, located inside the shell plate and formed between the air suction passage and the exhaust passage, a blower is arranged in the blower cavity, and the air inlet of the blower is communicated with the air outlet of the air suction passage.

3. The dishwasher according to claim 2, characterized in that, The air suction passage is composed of a plurality of connecting segments connected in sequence, and the plurality of connecting segments are folded back at least once.

4. The dishwasher according to claim 3, characterized in that, The air suction passage includes a lower segment and an upper segment with an acute angle, the direction of the angle faces the blower cavity, the lower segment is arranged horizontally, and the upper segment extends obliquely upward from the lower segment.

5. The dishwasher according to claim 4, characterized in that, A wind volume adjustment opening is formed on one side of the blower cavity facing the angle, a wind baffle is arranged at the wind volume adjustment opening, and the wind baffle is slidably connected with the frame edge of the wind volume adjustment opening.

6. The dishwasher according to claim 4, wherein A check valve piece is arranged at the connection port of the upper segment and the blower cavity, and the check valve piece is used for unidirectionally conducting between the air suction passage and the blower cavity.

7. The dishwasher according to any one of claims 2-6, characterized in that, The bottom port of the exhaust passage is detachably connected with an exhaust auxiliary structure.

8. The dishwasher according to any one of claims 1-6, characterized in that, The air inlet duct includes a shell, the shell includes a base plate and a surrounding plate formed around the base plate for one week, an air inlet passage is formed inside the shell, and a passage inlet for communicating the air inlet passage with the external space is formed on the base plate or the surrounding plate, and the air inlet passage is communicated with the air inlet of the inner liner.

9. The dishwasher according to claim 8, characterized in that, A first water baffle is arranged below the passage inlet, the first water baffle includes two segments with an acute angle, the lower segment extends obliquely upward from below the passage inlet, and the upper segment extends back and forth toward the passage inlet.

10. The dishwasher according to claim 8, wherein, A second water baffle is arranged above the passage inlet, and the second water baffle extends obliquely downward from above the passage inlet.

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