Active exhaust structure of dish-washing machine and dish-washing machine

Abstract

The active exhaust structure comprises an inner container and an air interchanger, the air interchanger comprises a bottom shell, a cover shell and a fan, the bottom shell and the inner container are integrally and fixedly connected, the cover shell is installed on the bottom shell, the bottom shell and the cover shell are combined in a covering mode to form an exhaust flow channel, and the fan is installed in the exhaust flow channel. The exhaust flow channel is provided with an exhaust inlet part and an exhaust outlet part, the exhaust inlet part is communicated with the inner cavity of the inner container, the exhaust outlet part is used for being communicated with the outside, and the fan is installed on the exhaust flow channel and used for supplying air to the exhaust outlet part from the exhaust inlet part. By means of the exhaust structure, air in the dish-washing machine inner container can flow out, air exchange and air inlet of the dish-washing machine inner container are facilitated, the draught fan is installed in the exhaust structure to supply air, the suction effect on the dish-washing machine inner container can be achieved, and then active exhaust of the dish-washing machine inner container can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, and more particularly to an active exhaust structure of a dishwasher, and also to a dishwasher with the active exhaust structure. Background Art

[0002] When a dishwasher is operating, the temperature of its internal tank rises due to the high temperature and the action of the hot air system components, and may be accompanied by air leakage or overflow. Usually, dishwashers are equipped with exhaust structures to discharge some of the internal airflow.

[0003] The inner tanks of dishwashers currently on the market are generally made of metal, while the components of the exhaust structure are mostly made of plastic. The metal inner tank is pre-designed with an exhaust port, and the exhaust structure is equipped with a corresponding interface, and the two are sealed by a seal. On the inside of the inner tank, the exhaust structure is fastened to the inner tank through a threaded connection, and pressure is applied to the seals on the inner and outer walls of the inner tank to ensure the sealing effect. The connection process of this structure is relatively complicated, with many accessories, and it is prone to leakage at the interface of the inner tank. In addition, the exhaust structure of the dishwasher usually adopts passive exhaust, which is achieved by increasing the internal pressure of the dishwasher or by the air intake structure to draw air into the inner cavity of the dishwasher. The exhaust structure of the dishwasher cannot actively exhaust, which is not conducive to the exhaust of the dishwasher. The exhaust method of the dishwasher cavity needs to be improved.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide an active exhaust structure of a dishwasher and a dishwasher, which can actively exhaust the inner tank of the dishwasher.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An active exhaust structure for a dishwasher includes an inner tank and a ventilation device, wherein the ventilation device includes a bottom shell, a cover shell, and a fan. The bottom shell is integrally and fixedly connected to the inner tank, and the cover shell is mounted on the bottom shell. The bottom shell and the cover shell cover each other to form an exhaust flow channel. The exhaust flow channel has an exhaust inlet portion and an exhaust outlet portion. The exhaust inlet portion is connected to the inner cavity of the inner tank, and the exhaust outlet portion is used to connect to the outside world. The fan is mounted on the exhaust flow channel and is used to supply air from the exhaust inlet portion to the exhaust outlet portion.

[0008] The utility model is further configured such that the fan includes an air inlet end and an air outlet end, the air inlet end is connected to the exhaust inlet portion of the exhaust flow channel, and the air outlet end is connected to the exhaust outlet portion of the exhaust flow channel.

[0009] The utility model is further configured such that the fan is a centrifugal fan, the air inlet end is arranged on the air inlet side end face of the fan, and a gap for air circulation is formed between the air inlet side end face and the exhaust flow channel.

[0010] The utility model is further configured such that the air outlet end is arranged on the outer periphery of the fan and faces the exhaust outlet.

[0011] The present invention is further configured such that the cover forms a raised portion protruding outward, a fan is installed inside the raised portion, a support portion is provided between the air inlet side end face of the fan and the inner tank, and the support portion is used to press and position the fan.

[0012] The present invention is further configured such that guide ribs are provided in the ventilation device, and the guide ribs separate the inner cavity of the ventilation device to form exhaust flow channels.

[0013] The present invention is further configured such that the guide rib is provided with a notch, the notch is downwardly connected to the exhaust inlet portion, and the lowest point of the exhaust inlet portion is connected to the inner cavity of the liner.

[0014] The present invention is further configured such that the exhaust inlet portion is provided with an air inlet, and the air inlet is opened on the side wall of the inner tank; the exhaust outlet portion is provided with an air outlet, and the air outlet is opened on the cover shell.

[0015] The present invention is further configured such that the ventilation device further includes a humidity sensor and an odor sensor, and the humidity sensor and the odor sensor are both installed on the cover for detecting the air in the exhaust duct.

[0016] The utility model also provides a dishwasher, comprising the active exhaust structure of the dishwasher as described above, and having the same technical effect as the active exhaust structure of the dishwasher as described above.

[0017] In summary, the present invention has the following beneficial effects:

[0018] By integrating the dishwasher's inner container and exhaust structure into a single-piece structure, the two are molded in one piece. The outer opening of the bottom shell is covered by a cover to form an exhaust duct. This simplifies the overall structure of the inner container and exhaust structure, facilitating production and assembly. Furthermore, by providing guide ribs within the exhaust duct, which are integrally molded with the inner container, the guide ribs can be used to separate and form a curved exhaust flow path within the ventilation device cavity. The curved shape of the guide ribs matches the shape of the fan, facilitating fan positioning and installation.

[0019] Through this exhaust structure, air can flow out of the dishwasher tank, which is beneficial to the ventilation and air intake of the dishwasher tank. A fan is installed in the exhaust structure to supply air, which can achieve the effect of suction on the dishwasher tank, thereby realizing active exhaust of the dishwasher tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the active exhaust structure of a dishwasher in this embodiment;

[0021] Figure 2 This is an explosion diagram of an active exhaust structure of a dishwasher in this embodiment;

[0022] Figure 3 is a side view of this embodiment;

[0023] Figure 4 3D is a perspective view of the cover and the fan in this embodiment.

[0024] Figure numerals: inner liner 10; ventilation device 20; bottom shell 21; cover shell 22; raised portion 221; seal 23; exhaust flow channel 30; exhaust inlet portion 31; air inlet 311; exhaust outlet portion 32; air outlet 321; guide ribs 33; notch 331; support portion 34; fan 40; air inlet end 41; air outlet end 42; air inlet side end face 43; humidity sensor 50; odor sensor 60. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0026] This embodiment discloses an active exhaust structure for a dishwasher, which is suitable for a dishwasher or a cleaning machine similar to a dishwasher. It can allow air to flow out of the dishwasher's inner tank, thereby facilitating ventilation and air intake of the dishwasher's inner tank. A fan is installed in the exhaust structure to supply air, which can achieve a suction effect on the dishwasher's inner tank, thereby achieving active exhaust of the dishwasher's inner tank.

[0027] Reference Figures 1-4 As shown, the active exhaust structure of the dishwasher includes an inner tank 10 and a ventilation device 20. The inner tank 10 is hollow to form a washing cavity. The ventilation device 20 is installed outside the inner tank 10 and can connect the inner cavity of the inner tank 10 with the external environment.

[0028] The air exchange device 20 comprises a bottom shell 21, a cover shell 22 and a fan 40. The bottom shell 21 and the inner container 10 can be integrally injection molded to form an integrated connection, avoiding leakage at the connection. The cover shell 22 is shaped to match the bottom shell 21. The cover shell 22 is mounted on the bottom shell 21 and sealed at the connection between the two by a rubber seal 23. The bottom shell 21 and the cover shell 22 can be overlapped to form a hollow cavity as an exhaust flow channel 30.

[0029] Referring to Figure 2 , Figure 4 , the exhaust flow channel 30 has an exhaust inlet portion 31 and an exhaust outlet portion 32. The exhaust inlet portion 31 communicates with the inner cavity of the inner container 10. The exhaust outlet portion 32 is used to communicate with the outside environment, thereby enabling the inner container 10 to communicate with the outside environment and allowing air in the inner container 10 to be exhausted.

[0030] The fan 40 is installed in the exhaust flow channel 30. The fan 40 can actively supply air from the exhaust inlet portion 31 to the exhaust outlet portion 32, thereby exhausting air in the inner container 10 to the outside of the dishwasher.

[0031] Referring to Figure 2 , Figure 3 , a guide rib plate 33 is provided in the air exchange device 20. The guide rib plate 33 is integrally formed with the inner container 10. The guide rib plate 33 can divide the inner cavity of the air exchange device 20 to form a curved exhaust flow channel 30. The curved shape of the guide rib plate 33 is matched with the shape of the fan 40, facilitating positioning and installation of the fan 40.

[0032] A downwardly recessed recess structure is formed in part of the guide rib plate 33. In order to avoid water accumulation in the recess, a notch 331 can be formed in the guide rib plate 33. The notch 331 downwardly communicates with the exhaust inlet portion 31, allowing water accumulated on the surface of the guide rib plate 33 to flow downwardly into the exhaust inlet portion 31. Since the lowest part of the exhaust inlet portion 31 communicates with the inner cavity of the inner container 10, water in the air exchange device 20 can flow back to the inner container 10.

[0033] Referring to Figure 2 , the exhaust inlet portion 31 is provided with an air inlet 311 formed in the side wall of the inner container 10. The exhaust outlet portion 32 is provided with an air outlet 321 formed in the cover shell 22. The exhaust inlet portion 31 is provided with densely arranged holes, forming a structure similar to a grating, which can prevent impurities in the dishwasher from entering the exhaust flow channel 30. One of the holes in the exhaust inlet portion 31 extends to the lowest position of the exhaust inlet portion 31, allowing liquid in the exhaust inlet portion 31 to flow out and flow back to the inner container 10, thereby preventing water accumulation in the exhaust flow channel 30.

[0034] The fan 40 comprises an air inlet end 41 and an air outlet end 42, the air inlet end 41 is communicated with the air inlet part 31 of the air flow channel 30, and the air outlet end 42 is communicated with the air outlet part 32 of the air flow channel 30.

[0035] Referring to Figure 2 , Figure 4 In the embodiment, the fan 40 can be a centrifugal fan, the air inlet end 41 is arranged at the air inlet side end face 43 of the fan 40, and the air outlet end 42 is arranged at the outer periphery of the fan 40.

[0036] A support part 34 is arranged between the air inlet side end face 43 of the fan 40 and the inner container 10, the support part 34 is integrally formed with the side wall of the inner container 10 and can abut and position the fan 40. After the fan 40 is installed, a gap is formed between the air inlet side end face 43 of the fan 40 and the outer side wall of the inner container 10, air can flow through the gap, and air in the air inlet part 31 can flow to the air inlet end 41 of the fan 40 through the gap. The air outlet end 42 of the fan 40 faces the direction of the air outlet part 32, and air is discharged outward.

[0037] Referring to Figure 2 In order to facilitate the installation of the fan 40, the cover shell 22 forms a protruding raised part 221, and the inside of the raised part 221 can install the fan 40, and the fan 40 is installed between the bottom shell 21 and the cover shell 22.

[0038] Further, referring to Figure 1 , Figure 2 , Figure 4 The air exchange device 20 further comprises a humidity sensor 50 and an odor sensor 60, the humidity sensor 50 and the odor sensor 60 are both installed on the cover shell 22, the detection end of the sensor can detect the environment in the air flow channel 30, and the humidity and odor of the air in the air flow channel 30 are detected. The humidity sensor 50 and the odor sensor 60 can adopt a sensor module in the prior art, which will not be described here.

[0039] The dish washing machine can compare the detected humidity and odor parameters with the preset parameters, when the humidity and odor parameters of the air exceed the preset range, the dish washing machine can control the fan 40 to work, realize automatic ventilation and air exchange in the inner cavity of the dish washing machine, and can also supplement drying by means of the hot drying assembly, improve the environment in the dish washing machine, avoid the breeding of odor and bacteria, and improve the use experience of the dish washing machine.

[0040] The embodiment also discloses a dish washing machine, which comprises the active air exhaust structure of the dish washing machine in the above embodiment, air in the inner container of the dish washing machine can flow out, which is beneficial to air exchange and air intake of the inner container of the dish washing machine, and a fan is installed in the air exhaust structure to perform air supply, so that suction is formed on the inner container of the dish washing machine, and active air exhaust of the inner container of the dish washing machine is realized.

[0041] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An active exhaust structure for a dishwasher, characterized in that: The invention comprises an inner liner (10) and a ventilation device (20), wherein the ventilation device (20) comprises a bottom shell (21), a cover shell (22) and a fan (40), wherein the bottom shell (21) is integrally fixedly connected to the inner liner (10), and the cover shell (22) is mounted on the bottom shell (21), and the bottom shell (21) and the cover shell (22) cover each other to form an exhaust flow channel (30), wherein the exhaust flow channel (30) has an exhaust inlet portion (31) and an exhaust outlet portion (32), wherein the exhaust inlet portion (31) is connected to the inner cavity of the inner liner (10), and the exhaust outlet portion (32) is used to connect to the outside world, and the fan (40) is mounted on the exhaust flow channel (30) and is used to supply air from the exhaust inlet portion (31) to the exhaust outlet portion (32).

2. The active exhaust structure of the dishwasher according to claim 1, characterized in that: The fan (40) comprises an air inlet end (41) and an air outlet end (42), wherein the air inlet end (41) is connected to the exhaust inlet portion (31) of the exhaust flow channel (30), and the air outlet end (42) is connected to the exhaust outlet portion (32) of the exhaust flow channel (30).

3. The active exhaust structure of the dishwasher according to claim 2, characterized in that: The fan (40) is a centrifugal fan, and the air inlet end (41) is provided on the air inlet side end surface (43) of the fan (40), and a gap for air circulation is formed between the air inlet side end surface (43) and the exhaust flow channel (30).

4. The active exhaust structure of the dishwasher according to claim 3, characterized in that: The air outlet end (42) is arranged on the outer periphery of the fan (40) and faces the exhaust outlet portion (32).

5. The active exhaust structure of the dishwasher according to claim 3, characterized in that: The cover shell (22) forms a raised portion (221) protruding outward, a fan (40) is installed inside the raised portion (221), and a support portion (34) is provided between the air inlet side end surface (43) of the fan (40) and the inner container (10), and the support portion (34) is used to press and position the fan (40).

6. The active exhaust structure of the dishwasher according to claim 1, characterized in that: A guide rib (33) is provided in the ventilation device (20), and the guide rib (33) is used to separate the inner cavity of the ventilation device (20) to form an exhaust flow channel (30).

7. The active exhaust structure of the dishwasher according to claim 6, characterized in that: The guide rib (33) is provided with a notch (331), and the notch (331) is downwardly connected to the exhaust inlet portion (31), and the lowest point of the exhaust inlet portion (31) is connected to the inner cavity of the inner tank (10).

8. The active exhaust structure of the dishwasher according to claim 1, characterized in that: The exhaust inlet portion (31) is provided with an air inlet (311), and the air inlet (311) is opened on the side wall of the inner container (10); the exhaust outlet portion (32) is provided with an air outlet (321), and the air outlet (321) is opened on the cover (22).

9. The active exhaust structure of the dishwasher according to claim 1, characterized in that: The ventilation device (20) further comprises a humidity sensor (50) and an odor sensor (60), both of which are mounted on the housing (22) and are used to detect air in the exhaust flow channel (30).

10. A dishwasher, characterized in that: The active exhaust structure of the dishwasher comprises the active exhaust structure of any one of claims 1 to 9.

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