Exhaust device and dish washing machine

Abstract

The exhaust device comprises a shell assembly, an air inlet and an air outlet communicated with the outside atmosphere are formed in the shell assembly, an air flue is arranged in the shell assembly, the air inlet, the air flue and the air outlet are communicated in sequence, and a plurality of drying modules used for sucking away water vapor are distributed on the air flue; a plurality of condensation ribs for condensing gas are distributed on the air duct; the plurality of drying modules are staggered mutually and are linearly distributed on the air duct; the drying module is a diatom ooze block; a plurality of mounting parts are distributed on the air duct, and the drying modules are mounted on the mounting parts. According to the utility model, the plurality of drying modules are arranged on the air duct of the exhaust device, and the drying modules are diatom ooze blocks which are easy to absorb water, so that when water vapor exhausted from the exhaust device passes through the diatom ooze blocks, the diatom ooze blocks can absorb the water vapor, and the water vapor in the gas exhausted from the bottom of the dish-washing machine is as little as possible; therefore, the influence on the safety and the service life of the machine can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to an exhaust device and a dishwasher. Background Art

[0002] The drying system (exhaust device) of an ordinary dishwasher only extracts the humid air in the inner cavity of the dishwasher, and at the same time discharges it after simple condensation in the air outlet duct to the bottom of the dishwasher. The drying system is arranged on one side of the inner cavity, and an air inlet device is arranged on the other side of the inner cavity. The air inlet device is used to discharge fresh air from the outside into the inner cavity, and the fresh air is heated in the air inlet duct of the air inlet device before flowing into the inner cavity (drying the tableware in the inner cavity). In this way, the gas discharged from the bottom of the dishwasher contains a large amount of water vapor, which will evaporate into every corner of the machine, including sensitive places such as the control panel, affecting the safety and life of the entire machine.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The utility model aims to provide an exhaust device and a dishwasher with simple structure, good drying effect, safety and reliability, long service life and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] An exhaust device designed for this purpose includes a shell component, the shell component is provided with an air inlet and an air outlet connected to the outside atmosphere, an air duct is provided inside the shell component, the air inlet, the air duct and the air outlet are connected in sequence, and it is characterized in that: a plurality of drying modules for absorbing water vapor are arranged on the air duct.

[0006] A plurality of condensation ribs for condensing the gas are arranged on the air duct.

[0007] Several drying modules are mutually staggered and linearly distributed on the air duct; the drying modules are diatom mud blocks.

[0008] A plurality of installation parts are arranged on the air duct, and the drying modules are installed on the installation parts.

[0009] The air duct includes an air inlet duct, a main air duct and an air outlet duct which are connected in sequence. The air inlet duct is connected to the air inlet, and the air outlet duct is connected to the air outlet. A return flow channel is arranged between the air inlet and the main air duct. A return flow port connected to the outside atmosphere is arranged on the outer shell component. The return flow port, the air outlet duct, the main air duct, the return flow channel and the air inlet are connected in sequence.

[0010] The air inlet and the air inlet duct are arranged at the upper end of the shell component, the air outlet duct and the air outlet are arranged at the lower end of the shell component, the air inlet, the air inlet duct and the main air duct form an inverted U-shaped structure, and the main air duct, the air outlet duct and the air outlet form an inverted S-shaped structure.

[0011] The return channel is arranged below the air inlet, and the return channel is inclined downward in the direction of the main air duct, and the air inlet, the return channel and the main air duct form an inverted triangle structure; the return port is arranged at the lower part of the shell assembly and is located between the main air duct and the outlet air duct, and an inverted triangle structure is formed between the main air duct, the return port and the outlet air duct.

[0012] A baffle is arranged between the air inlet duct and the main air duct, and the baffle is rotatably mounted on the shell assembly, on which a limit block is arranged; when the exhaust device is not exhausting, the baffle rotates downward under the action of gravity, and one end of the baffle rests on the limit block, so that the air inlet duct and the main air duct are not connected to each other; when the exhaust device is exhausting, the gas pushes the baffle to rotate upward, so that the air inlet duct and the main air duct are connected to each other.

[0013] The drying module is arranged on the air inlet duct and / or the main air duct and / or the air outlet duct.

[0014] A dishwasher designed for this purpose includes an inner tank, and is characterized in that it also includes the exhaust device, the outer shell component is arranged on one side of the inner tank, and the air inlet is connected to the inner tank; a fan component is arranged on the air inlet, the air inlet end of the fan component is connected to the inner tank, and the air outlet end of the fan component is connected to the air duct.

[0015] The utility model arranges a plurality of drying modules on the air duct of the exhaust device. The drying modules are diatom mud blocks that are easy to absorb water. When the water vapor discharged from the exhaust device passes through these diatom mud blocks, the diatom mud blocks can absorb the water vapor, so that the gas discharged from the bottom of the dishwasher contains as little water vapor as possible, thereby reducing the impact on the safety and life of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the exploded structure of the exhaust device in one embodiment of the utility model.

[0017] Figure 2 It is a partial structural exploded view of the exhaust device in one embodiment of the utility model.

[0018] Figure 3 It is a partial structural schematic diagram of an exhaust device in one embodiment of the utility model.

[0019] Figure 4 It is a schematic diagram of the overall structure of the exhaust device in one embodiment of the utility model.

[0020] Figure 5 The figure is a schematic diagram of the overall structure of the spoiler in one embodiment of the utility model.

[0021] Figure 6 Schematic diagram of the overall structure of a dishwasher in one embodiment of the utility model.

[0022] Figure 7 The figure is a schematic diagram of the exploded structure of a dishwasher in one embodiment of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 7 The exhaust device includes a shell component 2, on which an air inlet 3 and an air outlet 4 connected to the outside atmosphere are arranged, and an air duct 5 is arranged inside the shell component 2. The air inlet 3, the air duct 5 and the air outlet 4 are connected in sequence, and a plurality of drying modules 6 for absorbing water vapor are arranged on the air duct 5.

[0025] A plurality of condensation ribs 7 for condensing gas are arranged on the air duct 5. The condensation ribs 7 are arranged on the main air duct 10. The condensation ribs 7 can promote the condensation of water vapor into water.

[0026] Several drying modules 6 are mutually staggered and linearly distributed on the air duct 5. This structure allows the gas to flow along a circuitous path when passing through the drying modules 6, which can reduce the gas flow rate and enable the drying modules 6 to better and more fully absorb water vapor in the gas.

[0027] The drying module 6 is a diatom mud block.

[0028] A plurality of mounting parts 8 are arranged on the air duct 5 , and the drying module 6 is mounted on the mounting parts 8 , and the mounting parts 8 are mounting frames.

[0029] The air duct 5 includes an air inlet duct 9, a main air duct 10 and an air outlet duct 11 which are connected in sequence. The air inlet duct 9 is connected to the air inlet 3, and the air outlet duct 11 is connected to the air outlet 4. A return channel 12 is provided between the air inlet 3 and the main air duct 10, and the return channel 12 is located below the air inlet 3. A return port 13 connected to the outside atmosphere is provided on the housing component 2. The return port 13, the air outlet duct 11, the main air duct 10, the return channel 12 and the air inlet 3 are connected in sequence. When the dishwasher is working, especially after the air inlet device on the other side of the inner tank 1 is started, the internal pressure of the inner tank 1 is greater than the external atmospheric pressure, and the humid air in the inner tank 1 will be discharged through the exhaust device a. When the air inlet device is closed, as the temperature of the inner tank 1 decreases, the internal pressure of the inner tank 1 will be less than the external atmospheric pressure. At this time, the external gas will flow into the inner tank 1 through the return port 13, the air outlet duct 11, the main air duct 10, the return channel 12 and the air inlet 3 in sequence (such as Figure 3 As shown by the arrow, the inner pressure of the inner tank 1 and the external atmospheric pressure are balanced.

[0030] A reflux hole 14 is provided on one side of the air inlet 3, and the reflux channel 12 is connected to the air inlet 3 through the reflux hole 14; the size of the reflux hole 14 is small, so the wind resistance is large, so that when the exhaust device a is exhausted, the gas on the main air duct 10 will basically flow to the outlet air duct 11 (larger in size and smaller in wind resistance), avoiding the gas from flowing back to the inner tank 1 through the reflux channel 12.

[0031] The air inlet 3 and the air inlet duct 9 are arranged at the upper end of the shell component 2, the air outlet duct 11 and the air outlet 4 are arranged at the lower end of the shell component 2, the air inlet 3, the air inlet duct 9 and the main air duct 10 form an inverted U-shaped structure, and the main air duct 10, the air outlet duct 11 and the air outlet 4 form an inverted S-shaped structure; the above structure can prevent water from flowing back into the inner tank 1 from the air outlet 4, the air duct 5 and the air inlet 3 in sequence.

[0032] The return channel 12 is arranged below the air inlet 3, and the return channel 12 is inclined downward in the direction of the main air duct 10, and the air inlet 3, the return channel 12 and the main air duct 10 form an inverted triangle structure; the return port 13 is arranged at the lower part of the shell assembly 2, and is located between the main air duct 10 and the air outlet duct 11, and an inverted triangle structure is formed between the main air duct 10, the return port 13 and the air outlet duct 11; the inverted triangle structure can enhance the structural strength of the exhaust device a. In addition, the above structure can prevent water from flowing back into the inner tank 1 from the return port 13, the main air duct 10, the return channel 12 and the air inlet 3 in sequence.

[0033] A baffle 15 is arranged between the air inlet duct 9 and the main air duct 10. The baffle 15 is rotatably mounted on the shell assembly 2. The baffle 15 is arranged close to the air inlet 3, and a limit block 16 is arranged on the shell assembly 2. When the exhaust device a is not exhausting, the baffle 15 rotates downward under the action of gravity, and the lower end of the baffle 15 abuts against the limit block 16, so that the air inlet duct 9 and the main air duct 10 are not connected to each other, preventing gas or water from flowing back into the inner tank 1. When the exhaust device a is exhausting, the gas pushes the baffle 15 to rotate upward, so that the air inlet duct 9 and the main air duct 10 are connected to each other.

[0034] A limited rotation groove 19 is provided on the housing assembly 2, a rotation shaft 20 is provided at the upper end of the spoiler 15, and the rotation shaft 20 is rotatably installed on the limited rotation groove 19. A limited portion 21 is provided at the lower end of the spoiler 15. After the spoiler 15 rotates downward under the action of gravity, the limited portion 21 abuts against the limit block 16.

[0035] The drying module 6 is arranged on the air inlet duct 9 and / or the main air duct 10 and / or the air outlet duct 11 , that is, the drying module 6 can be arranged at any position on the air duct 5 . The drying module 6 of this embodiment is arranged on the air outlet duct 11 .

[0036] The housing assembly 2 includes an upper housing 24 and a lower housing 25 which are connected to each other. After the upper housing 24 and the lower housing 25 are assembled, an air duct 5 is formed therebetween. The limit block 16 and the limit rotation groove 19 are arranged at the upper end of the upper housing 24 .

[0037] The dishwasher comprises an inner tank 1 and an exhaust device a. The outer shell component 2 is arranged on one side of the inner tank 1. The air inlet 3 is connected to the inner tank 1. An exhaust channel 18 connected to the outside atmosphere is arranged at the bottom of the dishwasher. The air outlet 4 is connected to the exhaust channel 18.

[0038] A fan assembly 17 is provided on the air inlet 3, the air inlet end of the fan assembly 17 is connected to the inner tank 1, and the air outlet end of the fan assembly 17 is connected to the air duct 5. The fan assembly 17 includes a motor 22 and an impeller 23, and the motor 22 drives the impeller 23; Figure 2 As shown by the arrow, after the fan assembly 17 is started, the humid gas in the inner tank 1 is discharged to the outside through the air inlet 3, the air inlet duct 9, the main air duct 10, the air outlet duct 11 and the air outlet 4 in sequence.

[0039] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An exhaust device, comprising a housing component (2), the housing component (2) being provided with an air inlet (3) and an air outlet (4) connected to the outside atmosphere, an air duct (5) being provided inside the housing component (2), the air inlet (3), the air duct (5) and the air outlet (4) being connected in sequence, characterized in that: A plurality of drying modules (6) for absorbing water vapor are arranged on the air duct (5).

2. The exhaust device according to claim 1, characterized in that: A plurality of condensation ribs (7) for condensing gas are arranged on the air duct (5).

3. The exhaust device according to claim 2, characterized in that: A plurality of drying modules (6) are mutually staggered and linearly distributed on the air duct (5); the drying modules (6) are diatom mud blocks.

4. The exhaust device according to claim 3, characterized in that: A plurality of mounting portions (8) are arranged on the air duct (5), and the drying module (6) is mounted on the mounting portions (8).

5. The exhaust device according to claim 4, characterized in that: The air duct (5) comprises an air inlet duct (9), a main air duct (10) and an air outlet duct (11) which are connected in sequence; the air inlet duct (9) is connected to the air inlet (3), the air outlet duct (11) is connected to the air outlet (4), a return channel (12) is provided between the air inlet (3) and the main air duct (10), a return port (13) connected to the outside atmosphere is provided on the housing component (2), and the return port (13), the air outlet duct (11), the main air duct (10), the return channel (12) and the air inlet (3) are connected in sequence.

6. The exhaust device according to claim 5, characterized in that: The air inlet (3) and the air inlet duct (9) are arranged at the upper end of the shell component (2), and the air outlet duct (11) and the air outlet (4) are arranged at the lower end of the shell component (2); the air inlet (3), the air inlet duct (9) and the main air duct (10) form an inverted U-shaped structure, and the main air duct (10), the air outlet duct (11) and the air outlet (4) form an inverted S-shaped structure.

7. The exhaust device according to claim 5, characterized in that: The return channel (12) is arranged below the air inlet (3), and the return channel (12) is arranged to be inclined downward in the direction of the main air duct (10), so that the air inlet (3), the return channel (12) and the main air duct (10) form an inverted triangle structure; the return port (13) is arranged at the bottom of the housing component (2) and is located between the main air duct (10) and the air outlet duct (11), so that an inverted triangle structure is formed between the main air duct (10), the return port (13) and the air outlet duct (11).

8. The exhaust device according to claim 5, characterized in that: A baffle (15) is provided between the air inlet duct (9) and the main air duct (10), and the baffle (15) is rotatably mounted on the housing component (2), and a limit block (16) is provided on the housing component (2); when the exhaust device (a) is not exhausting, the baffle (15) rotates downward under the action of gravity, and one end of the baffle (15) abuts against the limit block (16), so that the air inlet duct (9) and the main air duct (10) are not connected to each other; when the exhaust device (a) is exhausting, the gas pushes the baffle (15) to rotate upward, so that the air inlet duct (9) and the main air duct (10) are connected to each other.

9. The exhaust device according to claim 5, characterized in that: The drying module (6) is arranged on the air inlet duct (9) and / or the main air duct (10) and / or the air outlet duct (11).

10. A dishwasher, comprising an inner container (1), characterized in that: It also includes an exhaust device (a) as described in any one of claims 6 to 9, wherein the outer shell component (2) is arranged on one side of the inner tank (1), and the air inlet (3) is connected to the inner tank (1); a fan component (17) is arranged on the air inlet (3), the air inlet end of the fan component (17) is connected to the inner tank (1), and the air outlet end of the fan component (17) is connected to the air duct (5).

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