Dishwasher exhaust duct and dishwasher

Abstract

The present invention discloses a dishwasher exhaust duct and a dishwasher, wherein the dishwasher exhaust duct includes a shell plate and further includes: an air intake channel located on the inner side of the shell plate, the air intake channel being connected to an inner tank; an air exhaust channel located at the lower end of the shell plate, the air inlet of the air exhaust channel being connected to the air outlet of a fan; and a fan chamber located on the inner side of the shell plate and formed between the air intake channel and the air exhaust channel, a fan being provided in the fan chamber, the air inlet of the fan being connected to the air outlet of the air intake channel. The dishwasher exhaust duct of the present invention does not require a sealing structure. By extending the air intake channel, on the one hand, water can be prevented from overflowing from the air outlet when washing dishes, and on the other hand, high-humidity air can be condensed to form water droplets when flowing through the air intake channel, and then flow back into the inner tank through the air outlet of the inner tank, thereby avoiding the problems caused by the traditional sealing structure.

Description

Technical Field

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

[0002] With the improvement of living standards, dishwashers are becoming increasingly popular among consumers. To enhance the safety of dishwashers, existing dishwashers have a sealing structure installed at the exhaust vent. During dishwashing, the sealing structure blocks the vent to prevent water from overflowing. During drying or ventilation, the sealing structure opens the vent to allow air to escape. This method increases the cost of the sealing structure, and the electromagnetically controlled sealing structure is susceptible to moisture, causing short circuits.

[0003] When the dishwasher is washing, the sealing structure blocks the exhaust vent, and water does not flow out of the exhaust vent. However, when the dishwasher finishes washing and the dishes are dried, the sealing structure of the exhaust vent opens, and the air in the dishwasher tank is discharged from the exhaust vent, causing water droplets or water vapor in the dishwasher tank to be discharged from the exhaust vent, thereby causing the electrical components installed in the exhaust duct to malfunction and even cause safety accidents. Summary of the Invention

[0004] In order to solve the technical problem that the existing dishwasher sets a sealing structure at the exhaust port to control the conduction or disconnection of the air duct, resulting in increased structural cost and high failure rate, the present invention proposes a dishwasher exhaust duct that can solve the above problems.

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

[0006] A dishwasher exhaust duct includes a shell plate and further includes:

[0007] An air intake channel is located on the inner side of the shell plate, and the air intake channel is connected to the inner liner;

[0008] an exhaust channel, located at the lower end of the shell plate, wherein the air inlet of the exhaust channel is connected to the air outlet of the fan;

[0009] A fan cavity is located on the inner side of the shell plate and is formed between the air intake channel and the air exhaust channel. A fan is provided in the fan cavity, and an air inlet of the fan is connected to an air outlet of the air intake channel.

[0010] Furthermore, the air intake channel is composed of a plurality of connecting sections connected in sequence, and the plurality of connecting sections are folded back at least once.

[0011] Furthermore, the air intake channel includes a lower side segment and an upper side segment with an acute angle, the angle is directed toward the fan cavity, the lower side segment is arranged in the horizontal direction, and the upper side segment extends obliquely upward from the lower side segment.

[0012] Furthermore, a wire clamp is formed in the space enclosed by the lower side section, the upper side section and the fan cavity, for clamping the wires of the fan.

[0013] Furthermore, the fan cavity is provided with an air volume regulating port on one side facing the angle, and a wind shield is provided at the air volume regulating port, and the wind shield is slidably connected to the frame edge of the air volume regulating port.

[0014] Furthermore, a check valve is provided at the connection between the upper section and the fan chamber, and the check valve is used to provide one-way conduction between the air intake channel and the fan chamber.

[0015] Furthermore, one end of the check valve disc is hingedly connected to the inner side of the retaining edge of the fan cavity, a stopper is provided at the connection port, and the check valve disc is located on the side of the stopper facing the fan cavity.

[0016] Furthermore, the bottom port of the exhaust channel is detachably connected to an exhaust auxiliary structure.

[0017] Furthermore, the exhaust auxiliary structure includes a main body and a connecting part, the connecting part is located at the top of the main body and is used to connect to the bottom port of the exhaust channel. The connecting part has a through hole, and the main body has an expansion cavity with a narrow width at the top and a wide width at the bottom. The through hole is connected to the expansion cavity, and the bottom of the expansion cavity is connected to the outside.

[0018] Furthermore, an auxiliary fixing piece is provided on the outer surface of at least one shoulder of the body.

[0019] Furthermore, the auxiliary fixing member is a hook.

[0020] Furthermore, a sealing sleeve is provided between the fan and the fan cavity.

[0021] Furthermore, the sealing sleeve includes a retaining ring arranged along the circumferential direction of the fan casing and a nozzle for being mounted on the outside of the air outlet of the fan. The retaining ring is fixedly connected to the nozzle. The sealing sleeve and the side of the nozzle form a closed space. The fan is assembled in the closed space, and the air outlet of the fan is matched and fixed with the nozzle.

[0022] Furthermore, the nozzle is a long cylindrical structure with a rectangular cross section, and the two ends of the retaining ring are respectively connected to the two opposite sides of the nozzle.

[0023] Furthermore, the bottom port of the mouthpiece is formed with a first outer flange folded outwards.

[0024] Furthermore, a second outer flange folded outward is formed on one end of the retaining ring facing the shell plate.

[0025] Furthermore, at least one outwardly protruding protrusion is formed on the retaining ring, a positioning column is formed on the protrusion, and a clamping portion is formed on the retaining edge of the fan cavity for clamping and fixing the positioning column.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are: the dishwasher exhaust duct of the present invention does not require a sealing structure. By extending the air intake channel, on the one hand, it can prevent water from overflowing from the exhaust port when washing dishes. On the other hand, the high-humidity air condenses to form water droplets when flowing through the air intake channel, and then flows back into the inner tank through the exhaust port of the inner tank, avoiding the problems caused by the traditional sealing structure.

[0027] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 2. It is a schematic structural diagram of an inner container of an embodiment of a dishwasher proposed by the present invention;

[0030] Figure 2 Schematic diagram of the assembly relationship between the exhaust duct and the inner container of an embodiment of the dishwasher proposed by the present invention;

[0031] Figure 3 Schematic diagram of the assembly relationship between the air inlet duct and the inner container of an embodiment of the dishwasher proposed by the present invention;

[0032] Figure 4 1 is a schematic diagram of the back panel of the inner tank of an embodiment of the dishwasher proposed by the present invention;

[0033] Figure 5 1 is a schematic diagram of a partial structure of an exhaust duct in an embodiment of a dishwasher proposed by the present invention;

[0034] Figure 6 yes Figure 5 A schematic diagram of one side structure of

[0035] Figure 7 yes Figure 6 B-direction sectional view;

[0036] Figure 8 yes Figure 5 Another side structural diagram;

[0037] Figure 9 Schematic diagram of the assembly relationship between the air inlet duct and the inner container of another embodiment of the dishwasher proposed by the present invention;

[0038] Figure 10 yes Figure 9 Partial exploded view of

[0039] Figure 11 This is an exploded view of the assembly relationship between the fan and the exhaust duct in one embodiment of the dishwasher proposed by the present invention;

[0040] Figure 12 yes Figure 11 Assembly drawing;

[0041] Figure 13 yes Figure 11 Schematic diagram of the local structure of the middle sealing sleeve;

[0042] Figure 14 yes Figure 12 Schematic diagram from the bottom perspective. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] Example 1: This example will take a dishwasher with an exhaust duct as an example to explain in detail the working principle of the exhaust duct and the dishwasher. Figures 1-4 As shown, the dishwasher of this embodiment includes:

[0045] An inner tank 11 is provided with a washing space, an exhaust port 111 is provided on a front panel 110 of the inner tank 11, and an air inlet 113 is provided on a back panel 112 of the inner tank 11;

[0046] The air inlet duct 12 is provided on the back plate 112 of the inner liner 11 and communicates with the air inlet 113;

[0047] The exhaust duct 13 is provided on the front panel 110 of the inner liner 11 and is communicated with the exhaust port 111 . A fan 15 is provided in the exhaust duct 13 and is connected to a controller.

[0048] Among them, the controller is the controller of the dishwasher, which is used to control the dishwasher to complete water intake, washing, drainage, drying and other actions. It is set in the electronic control box of the dishwasher.

[0049] 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 providing an air inlet and an air outlet on the inner tank and arranging a heating module in the air inlet, air circulation channels are formed on the rear outer side, the interior, and the front outer side of the inner tank. After washing, the fan is turned on to introduce external air into the inner tank, and the moisture on the surface of the tableware is taken away by the air flow to dry the tableware, which can solve the problem of water stains on the surface of the tableware that easily breed bacteria. By providing the air inlet on the back panel of the inner tank and the air outlet on the front panel of the inner tank, air can be taken in from the rear and discharged from the front. Since the dishwasher is generally installed in a cabinet with its rear facing the interior of the cabinet, by discharging air with higher humidity from the front of the dishwasher to the external space, moisture condensation in the cabinet is prevented, and the cabinet is prevented from being damp and shortening its service life.

[0050] A heating module 14 is also provided in the air inlet channel 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 dry the tableware. When the drying function is not needed, the cavity heating module is not opened, and the fan is turned on to introduce natural wind, so that the air inside the washing tank can be exchanged with the fresh air outside in time, thereby reducing the generation of odor inside the cavity and realizing the ventilation function.

[0051] like Figure 2 、 Figure 5 The exhaust duct 13 is mounted on the outside of the front panel 110 and is used to guide air from the inner container to the outside. As a preferred embodiment, the exhaust duct 13 includes a shell plate 131 and further includes:

[0052] The air intake channel 132 is located inside the shell plate 131 and communicates with the exhaust port 111 of the inner container. The air intake channel 132 can be formed by a surrounding edge formed inside the shell plate 131 and the shell plate 131, or it can be an independent air duct structure fixed inside the shell plate 131, such as an air duct, and all of these fall within the scope of protection of the present invention. This embodiment uses the example of the air intake channel 132 being formed by a surrounding edge 132a formed inside the shell plate 131 and the shell plate 131. The surrounding edge 132a is sealed and fixed to the front panel 110.

[0053] In order to facilitate the fixing of the exhaust duct 13 on the front panel of the drawer 11, a convex rib 114 is formed on the front panel of the drawer 11, which matches the edge 132a of the exhaust duct 13. The fixed connection is achieved by aligning the edge 132a of the exhaust duct 13 with the convex rib 114 through bonding or welding.

[0054] The exhaust duct 133 is located at the lower end of the shell plate 131, and the air inlet of the exhaust duct 133 is connected to the air outlet of the fan 15; the exhaust duct 133 is set at the lower end of the shell plate 131, and the outlet of the exhaust duct 133 is downward, so that the wind is blown downward. On the one hand, the air outlet direction is toward the floor tiles to avoid direct blowing on the human body and causing discomfort. On the other hand, sufficient space can be reserved above the exhaust duct to arrange the fan cavity and the air inlet duct.

[0055] The fan cavity 134 is located inside the shell plate 131 and is formed between the air intake channel 132 and the air exhaust channel 133 . A fan 15 is provided in the fan cavity 134 , and an air inlet of the fan 15 is connected to an air outlet of the air intake channel 132 . When the fan 15 works to discharge the air in the inner tank 11 through the exhaust duct 13, the fan 15 first sucks away the air in the intake channel 132, and negative pressure is generated in the intake channel 132. Since the intake channel 132 is directly connected to the exhaust port 111 of the inner tank, the air in the inner tank is sucked into the intake channel 132 and then blown out from the exhaust channel 133 through the fan. The exhaust duct 13 in this solution is conducive to improving the compactness of the exhaust duct and reducing its occupied volume by providing the intake channel 132, the fan chamber 134 and the exhaust channel 133 connected in sequence. When used on a dishwasher, there is no limit on the volume of the dishwasher. It can be used in large commercial dishwashers and small household dishwashers, especially for small dishwashers with smaller space, which effectively solves the problem of limited function due to limited volume.

[0056] Since the air intake channel 132 is directly connected to the exhaust port 111 of the inner pot, the air in the inner pot 11 first passes through the air intake channel 132 when being discharged. The air humidity in the inner pot is relatively high and contains more water vapor. Preferably, the air intake channel 132 is composed of multiple connecting sections connected in sequence, and the multiple connecting sections are folded back at least once. By extending the air intake channel 132, on the one hand, water can be prevented from overflowing from the exhaust port 111 when washing dishes. On the other hand, the high-humidity air condenses to form water droplets when flowing through the air intake channel 132, and then flows back into the inner pot through the exhaust port 111 of the inner pot.

[0057] In order to extend the air intake channel 132 and enable the condensed water in the air intake channel 132 to be smoothly gathered and finally discharged into the inner tank 11, the air intake channel 132 includes a lower section 1321 and an upper section 1322, and the angle between the lower section 1321 and the upper section 1322 is acute angle, angle The direction is toward the fan chamber 134, the lower side section 1321 is arranged in the horizontal direction, and the upper side section 1322 extends obliquely upward from the lower side section 1321. Alternatively, the lower side section 1321 is arranged obliquely upward from its starting end and then connects with the upper side section to form an acute angle. The condensed water in the upper side section 1322 and the lower side section 1321 flows downward along the channel under the action of gravity and finally flows into the inner tank.

[0058] In order to smoothly discharge the collected condensed water from the air intake channel 132 into the inner tank 11, Figure 7 As shown, the lower side edge 132a of the lower side section 1321 is preferably arranged to be tilted downward relative to the air flow channel corresponding to the lower side section 1321, and the gathered condensed water flows into the inner tank along the tilted downward edge 132a under the action of gravity.

[0059] The end of the surrounding edge 132a is folded downward to form a guide flange 132b. On the one hand, the guide flange 132b serves to guide the condensed water into the inner tank. On the other hand, it allows the surrounding edge 132a to fit tightly with 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.

[0060] An arc-shaped notch 132c is provided at the positive corner of the guide flange 132b. The arc-shaped notch 132c serves to gather condensed water and at the same time increases the slope of the end edge of the surrounding edge 132a. When the condensed water gathers at this point, it is quickly introduced into the inner tank.

[0061] like Figure 8 As shown, a wire clamp 135 is formed in the space enclosed by the lower side section 1321, the upper side section 1322 and the fan cavity 134 to clamp the wires of the fan 15. This makes rational use of space and prevents the wires from being cluttered and affecting assembly.

[0062] In order to save costs, the dishwasher in this solution preferably uses a fixed-frequency fan with lower cost. Once a fixed-frequency fan is selected, the air volume cannot be flexibly adjusted according to the load. Figure 5 、 Figure 6 As shown, the fan cavity 134 is oriented toward the angle An air volume regulating port 1341 is provided on one side, and a windshield 1342 is provided at the air volume regulating port 1341. The windshield 1342 is slidably connected to the frame edge of the air volume regulating port 1341, and the fan chamber 134 is connected to the outside through the air volume regulating port 1341. When the exhaust duct 13 of this structure is used on dishwashers of different capacities, the opening of the air volume regulating port 1341 can be adjusted according to the actual load of the dishwasher to make the air outlet and air intake compatible. There is no need to re-open the mold or replace the fan, which improves its applicability and helps reduce production costs. The sliding connection between the windshield 1342 and the frame edge of the air volume regulating port 1341 facilitates the adjustment of the opening of the air volume regulating port 1341. Moreover, the sliding connection method can maintain the air volume regulating port well after adjustment, preventing arbitrary changes in the opening.

[0063] like Figure 5 As shown, guide slides 1343 are provided on the frame edges on both sides of the air volume regulating port 1341, and the wind shield 1342 is inserted into the guide slides 1343. The sliding direction of the wind shield 1342 is perpendicular to the shell plate 131, and the height of the wind shield 1342 relative to the shell plate 131 is not lower than the height of the surrounding edge that surrounds the fan cavity, that is, the wind shield 1342 can completely block the air volume regulating port 1341 when it slides to the bottom.

[0064] A connection port 1344 is provided between the upper section 1322 and the fan cavity 134 to connect the two channels. The upper end of the connection port 1344 is inclined toward the air intake channel 132 , which helps the condensed water flow back to the air intake channel 132 and prevents it from entering the fan cavity 134 .

[0065] like Figure 6 As shown, a check valve disc 136 is provided at the connection between the upper section 1322 and the fan chamber 134. The check valve disc 136 is used to unidirectionally conduct air between the suction channel 132 and the fan chamber 134. When the fan is working, the air pressure on the side of the check valve disc 136 facing the fan chamber 134 is low, and the air pressure on the side facing the suction channel 132 is high. Under the suction force of the fan 15, the check valve disc 136 rotates about its axis toward the fan chamber 134, connecting the suction channel 132 with the fan chamber 134. When the fan stops working, the check valve disc 136 remains in a drooping state under the action of gravity, blocking the fan chamber 134 from the suction channel 132. The check valve disc 136 can prevent air from entering the suction channel and then backflowing into the inner tank when the air pressure in the fan chamber 134 increases.

[0066] As a preferred embodiment, Figure 6As shown, one end of the check valve plate 136 is hingedly connected to the inner side of the retaining edge of the fan chamber, and a block 1345 is provided at the connection port 1344. The check valve plate 136 is located on the side of the block 1345 facing the fan chamber 134. Therefore, the check valve plate 136 can rotate unidirectionally around the axis toward the fan chamber, and is blocked by the block and cannot rotate around the axis toward the suction channel 132.

[0067] like Figure 6 As shown, the exhaust duct 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 exhausts air outward. In order to reduce the noise of the air outlet, the setting direction of the exhaust duct 133 is consistent with the opening direction of the fan outlet to prevent the air duct from blocking the noise.

[0068] Due to space constraints within the dishwasher, the length and width of exhaust duct 133 are limited. To smoothly expel air from the inner container and disperse the exhausted moisture as far as possible to the surrounding area to prevent moisture from entering the dishwasher's electrical components, in this embodiment, an auxiliary exhaust structure 137 is preferably detachably connected to the bottom end of exhaust duct 133. This auxiliary exhaust structure 137 is positioned in the direction of air flow, with its outlet still facing downward. By extending exhaust duct 133, it diffuses the exhausted moisture away from the dishwasher.

[0069] like Figure 9 、 Figure 10 As shown, exhaust assist structure 137 includes a main body 1371 and a connecting portion 1372. Connecting portion 1372 is located at the top of main body 1371 and is used to connect to the bottom port of exhaust channel 133. Connecting portion 1372 has a through hole. Main body 1371 has an expansion cavity that is narrow at the top and wide at the bottom. The through hole connects to the expansion cavity, and the bottom of the expansion cavity is connected to the outside. Gas discharged from exhaust channel 133 enters the expansion cavity through the through hole. The design of the expansion cavity, which is narrow at the top and wide at the bottom, can diffuse the gas to the surrounding area, reducing exhaust pressure and noise, while also serving as an exhaust guide.

[0070] In order to prevent the exhaust auxiliary structure 137 from falling off the exhaust channel 133, an auxiliary fixing piece 1373 is provided on the outer surface of at least one shoulder of the main body 1371. The auxiliary fixing piece 1373 can be detachably fixed to the fixing structure on the front panel of the inner liner 11.

[0071] In order to facilitate disassembly and assembly, the auxiliary fixing member 1373 in this embodiment is implemented by a hook, which can be hung on the hanger 115 on the front panel 110, and is also very convenient to disassemble.

[0072] The fan 15 is located in the fan cavity 134. The air inlet of the fan 15 is connected to the air intake channel 132, and is used to suck the air in the inner container through the air intake channel 132. The air outlet of the fan 15 is connected to the exhaust channel 133, and is used to discharge the sucked air to the outside of the dishwasher. In order to improve the sealing performance of the fan 15 in the fan cavity 134, as shown in FIG. Figure 11-13 As shown, a sealing sleeve 16 is provided between the fan 15 and the fan cavity 134 .

[0073] like Figure 13 As shown, sealing sleeve 16 includes a retaining ring 161 and a nozzle 162. Retaining ring 161 is fixedly connected to nozzle 162. The sides of sealing sleeve 161 and nozzle 162 form a closed space. Fan 15 is assembled in this closed space, and the air outlet of fan 15 is aligned and fixed with nozzle 162. Retaining ring 161 is arranged along the circumference of fan 15, and nozzle 162 is located at the air outlet of the fan. Fan 15 does not directly contact fan chamber 134. Sealing sleeve 16 not only performs a sealing function, but also acts as a vibration damper, cushioning the vibration generated by the fan's rotation and preventing it from being transmitted to the dishwasher and causing vibration of the entire dishwasher.

[0074] The nozzle 162 is set according to the shape of the air outlet of the fan 15. The nozzle 162 in this embodiment is a long cylindrical structure with a rectangular cross-section, one end of which is connected to the air outlet of the fan 15, and the other end is inserted into the exhaust channel 133 to achieve a sealed connection between the fan cavity 134 and the exhaust channel 133. The plane where the diameter direction of the retaining ring 161 is located is perpendicular to the plane where the mouth of the nozzle 162 is located. The two ends of the retaining ring 161 are respectively connected to the two opposite sides of the nozzle 162. Therefore, the retaining ring 161 and the two long sides of the nozzle 162, as well as the transition connection between the two side edges of the nozzle 162, form a closed space, and the body of the fan 15 is arranged in the closed space.

[0075] The bottom end of the nozzle 162 is formed with a first outer flange 163 folded outward. When assembled, the bottom end of the nozzle 162 is inserted into the exhaust passage 133. Figure 14 As shown, the first outer flange 163 fits tightly against the inner wall of the exhaust channel 133, thereby achieving a seal between the air outlet of the fan 15 and the exhaust channel 133 to prevent air leakage to the outside. At the same time, the first outer flange 163 serves to isolate the fan 15 from the exhaust channel 133, thereby preventing the fan 15 from transmitting vibration to the exhaust channel 133.

[0076] Similarly, a second outer flange 164 is formed on one end of the retaining ring 161 facing the shell plate 131 . The second outer flange 164 isolates the side of the fan 15 from the shell plate 131 to prevent the fan 15 from transmitting vibration to the shell plate 131 .

[0077] At least one outwardly protruding protrusion 165 is formed on the retaining ring 161 along its long axis direction, and a positioning column 166 is formed on the protrusion 165. The positioning column 166 serves to locate the assembly position of the sealing sleeve 16. A clamping portion 1346 is formed on the retaining edge of the fan chamber 134, and the positioning column 166 is inserted into the clamping socket of the clamping portion 1346.

[0078] In order to simultaneously fix the sealing sleeve 16, a circle of bosses 1661 is formed on the positioning column 166, and a notch 1347 is opened on one side of the clamping portion 1346. The positioning column 166 is inserted into the bayonet from the notch 1347. The boss 1661 and the protrusion 165 are located below the clamping portion 1346, and the boss 1661 is located above the clamping portion 1346. The boss 1661 is stopped by the clamping portion 1346, which can prevent the positioning column 166 from being pulled out of the bayonet downward in the length direction of the positioning column.

[0079] The boss 1661 can be integrally formed with the positioning post 166 to facilitate manufacturing.

[0080] Preferably, there are two protrusions 165 symmetrically arranged on both sides of the vertical center axis of the retaining ring 161 to prevent the retaining ring 161 from moving left and right, thereby improving the stability of the fixation.

[0081] The sealing sleeve 16 can be made of any one of rubber, silicone, latex, and plastic, or other flexible, easily shaped, and airtight materials.

[0082] 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 ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A dishwasher exhaust duct, comprising a shell plate, characterized in that: Also includes: An air intake channel is located on the inner side of the shell plate, and the air intake channel is connected to the inner liner; an exhaust channel, located at the lower end of the shell plate, wherein the air inlet of the exhaust channel is connected to the air outlet of the fan; a fan cavity, located on the inner side of the shell plate and formed between the air intake channel and the air exhaust channel, wherein a fan is provided in the fan cavity, and an air inlet of the fan is connected to an air outlet of the air intake channel; A sealing sleeve is provided between the fan and the fan cavity. The sealing sleeve includes a retaining ring and a sleeve nozzle. The retaining ring is fixedly connected to the sleeve nozzle. The retaining ring and the side of the sleeve nozzle form a closed space. The fan is assembled in the closed space, and the air outlet of the fan is matched and fixed with the sleeve nozzle. The retaining ring is provided along the circumferential direction of the fan, and the sleeve nozzle is provided at the air outlet of the fan. The fan does not directly contact the fan cavity. One end of the sleeve nozzle is connected to the air outlet of the fan, and the other end is inserted into the exhaust channel. The air inhalation channel is composed of a plurality of connecting segments connected in sequence, and the plurality of connecting segments are turned back at least once; The air intake channel includes a lower side section and an upper side section with an acute angle, the angle is directed toward the fan cavity, the lower side section is arranged in a horizontal direction, and the upper side section extends obliquely upward from the lower side section.

2. The dishwasher exhaust duct according to claim 1, characterized in that: A wire clamp is formed in the space enclosed by the lower side section, the upper side section and the fan cavity, and is used for clamping the wires of the fan.

3. The dishwasher exhaust duct according to claim 1, characterized in that: The fan cavity is provided with an air volume regulating port on one side facing the angle, and a wind shield is provided at the air volume regulating port. The wind shield is slidably connected to the frame edge of the air volume regulating port.

4. The dishwasher exhaust duct according to claim 1, characterized in that: A check valve is provided at the connection between the upper section and the fan chamber, and the check valve is used to provide one-way conduction between the air intake channel and the fan chamber.

5. The dishwasher exhaust duct according to claim 4, characterized in that: One end of the check valve disc is hingedly connected to the inner side of the retaining edge of the fan cavity, a stopper is provided at the connection port, and the check valve disc is located on the side of the stopper facing the fan cavity.

6. The dishwasher exhaust duct according to any one of claims 1 to 5, characterized in that: The bottom port of the exhaust channel is detachably connected to an exhaust auxiliary structure.

7. The dishwasher exhaust duct according to claim 6, characterized in that: The exhaust auxiliary structure includes a main body and a connecting part, wherein the connecting part is located at the top of the main body and is used to connect to the bottom port of the exhaust channel. The connecting part has a through hole, and the main body has an expansion cavity with a narrow width at the top and a wide width at the bottom. The through hole is connected to the expansion cavity, and the bottom of the expansion cavity is connected to the outside.

8. The dishwasher exhaust duct according to claim 7, characterized in that: An auxiliary fixing piece is provided on the outer surface of at least one shoulder portion of the body.

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