Door body assembly for dish washing machine and dish washing machine

Abstract

The door body assembly comprises a door body and an exhaust pipe, the door body is provided with an air inlet used for being communicated with a washing cavity of the dish-washing machine, the exhaust pipe is installed in the door body, the air inlet end of the exhaust pipe is communicated with the air inlet, the side wall of the door body is provided with a through hole, and the through hole is communicated with the door body. And the exhaust end of the exhaust pipe is communicated with the through hole. Therefore, airflow flows out from the side face of the door body and cannot directly blow a user, and the use feeling of the user is improved; in addition, the exhaust end of the exhaust pipe cannot be seen from the front, and attractiveness of the dishwasher is improved.

Description

Technical Field

[0001] This utility model relates to a dishwasher, specifically to a door assembly for a dishwasher and the dishwasher itself. Background Technology

[0002] Due to the special nature of dishwashers as water-washing products, it is necessary to expel the high-temperature and high-humidity steam inside the dishwasher cavity to ensure rapid drying of dishes after washing. For example, the Chinese invention patent application CN202210855131.2 (publication number CN115191902A), which discloses a "Washing Machine and its Intelligent Internal Pressure Balancing System," describes an exhaust assembly with an exhaust shell. This exhaust shell has an air inlet and an air outlet, and an exhaust channel connecting the air inlet and outlet inside. The air inlet is connected to the inside of the inner drum, and the air outlet is connected to the outside of the inner drum. A humidity sensor for the exhaust assembly is installed within this exhaust channel.

[0003] As can be seen from the picture, the exhaust end of the exhaust pipe faces forward, making it clearly visible from the front of the dishwasher, which is unsightly. Furthermore, the airflow from the exhaust pipe blows directly at the user, resulting in a poor user experience. In addition, condensation will be generated in the exhaust pipe, and the condensation will flow out from the exhaust end of the drain pipe and drip onto the ground, creating a feeling of water leakage and further complicating the user experience. Utility Model Content

[0004] The first technical problem to be solved by this utility model is to provide a door assembly for a dishwasher in which the exhaust end of the exhaust pipe is not directly facing the user, in light of the current state of the technology.

[0005] The second technical problem to be solved by this utility model is to provide a dishwasher that uses the above-mentioned door assembly, in view of the current state of the prior art.

[0006] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a door assembly for a dishwasher, including a door and an exhaust pipe, wherein the door is provided with an air inlet for communicating with the washing chamber of the dishwasher, the exhaust pipe is installed in the door, and the air inlet end of the exhaust pipe is connected to the air inlet, characterized in that a through hole is provided on the side wall of the door, and the exhaust end of the exhaust pipe is connected to the through hole.

[0007] Preferably, a filter screen is provided in the through hole. The filter screen can not only filter the airflow discharged from the exhaust pipe to the outside, but also prevent external debris from entering the door through the through hole.

[0008] To facilitate the disassembly and maintenance of the filter screen, the filter screen is detachably installed in the through hole.

[0009] Preferably, the periphery of the through hole extends inward to form a support platform, and the free end of the support platform is vertically bent to form a limiting part. The filter screen is provided with a magnetic component, which is located on the support platform and magnetically attracted to the limiting part. This method facilitates the disassembly and maintenance of the filter screen.

[0010] To further enhance aesthetics, the outer surface of the filter is flush with the outer surface of the side wall of the door.

[0011] Preferably, the side of the door body is provided with a chamber that communicates with the through hole, and the exhaust end of the exhaust pipe is connected to the chamber. In this way, after the airflow flows out of the exhaust pipe, it will be buffered in the chamber to prevent the airflow speed from blowing off the filter screen too fast, and the arrangement of the chamber also facilitates the connection between the exhaust pipe and the through hole.

[0012] The exhaust pipe can have various structural forms. In order to facilitate the partial bending of the exhaust pipe and its connection with the through hole, the exhaust pipe includes a box and a flexible tube connected to the box. The box is connected to the air inlet of the door, and the flexible tube is connected to the chamber. The flexible tube can be bent to change its extension direction and connect with the through hole.

[0013] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a dishwasher, characterized in that: it includes a cabinet and the aforementioned door assembly, the front side of the cabinet is open, the door is movably disposed at the open side of the cabinet and can be opened and closed, and when the door is closed, the air inlet of the door faces the inside of the cabinet.

[0014] In order to dry the tableware, the box body is provided with an air inlet that is connected to its interior. The side wall of the box body is provided with a drying component for introducing hot airflow from the air inlet into the box body. The drying component includes an air inlet pipe and a fan. The air inlet pipe is provided with a heating element. The air outlet of the air inlet pipe is connected to the air inlet of the box body, and the air inlet of the air inlet pipe is connected to the air outlet of the fan. The air inlet of the fan is connected to the outside.

[0015] Condensation at the exhaust end of the exhaust pipe is caused by the condensation of hot, humid gas as it travels a long distance through the pipe, resulting in a decrease in temperature. To reduce condensation in the exhaust pipe, the lower part of the door is rotatably connected to the cabinet via an axis extending laterally. The cabinet has a push rod that can push the door forward. When the door is pushed to its limit by the push rod, the exhaust area between the cabinet and the door is larger than the exhaust end of the exhaust pipe. A temperature and humidity sensor is installed inside the cabinet. Combined with the door opening function, after cleaning, the push rod opens the door at a certain angle, allowing most of the hot, humid gas inside the cabinet to escape directly through the door gap, minimizing its passage through the exhaust pipe. Once the temperature and humidity sensor detects that the temperature and humidity of the gas exiting the cabinet are below a threshold, the door is closed, and exhaust occurs through the exhaust pipe. This way, when the gas temperature and humidity inside the cabinet are high, opening the door directly disperses the gas into the air, resulting in a short exhaust path and reduced condensation. After the temperature and humidity have decreased, closing the door for drying also minimizes condensation. Closing the door at this point prevents foreign objects from entering the cavity and contaminating the tableware if the door is left open for extended drying. After opening the door, the exhaust area is much larger than the exhaust port of the exhaust pipe, allowing the hot and humid gas inside the chamber to quickly dissipate into the surrounding environment. Once the inside of the chamber is basically dry, close the door to continue drying; at this point, passive exhaust can be used.

[0016] The fan is the main source of noise, and reducing the number of fans is the most effective way to reduce noise. Because the drying unit contains heating elements, without fan airflow, the heating elements would burn out, posing a safety hazard. Since the initial exhaust stage uses open-door exhaust, the exhaust pipe is not needed at this time. The exhaust pipe mainly participates in the later stages of drying and during cleaning and storage. This way, even without a fan at the exhaust pipe, passive exhaust can still be achieved; that is, the fan can simultaneously serve as the power source to drive airflow into the exhaust pipe from the chamber. In this way, the exhaust pipe and intake pipe share a single fan, reducing the number of fans and lowering noise levels.

[0017] Compared with the prior art, the advantages of this utility model are as follows: By setting through holes on the side wall of the door and connecting the exhaust end of the exhaust pipe to the through holes, the airflow flows out from the side of the door and does not blow directly on the user, thus improving the user experience; in addition, the exhaust end of the exhaust pipe is not visible from the front, which improves the aesthetics of the dishwasher. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure from another direction;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of the door assembly;

[0021] Figure 4for Figure 3 A sectional view;

[0022] Figure 5 for Figure 4 Enlarged view of point A. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0026] like Figures 1-5 As shown, the dishwasher of this preferred embodiment includes a cabinet 1, a door assembly, a drying assembly, and an exhaust pipe 2.

[0027] The door assembly includes a door body 3 and an exhaust pipe 2. The door body 3 is provided with an air inlet 31 for communicating with the washing chamber of the dishwasher. The exhaust pipe 2 is installed in the door body 3, and the air inlet end of the exhaust pipe 2 is connected to the air inlet 31. The side wall of the door body 3 is provided with a through hole 32, and the exhaust end of the exhaust pipe 2 is connected to the through hole 32.

[0028] This way, the airflow flows out from the side of the door 3, preventing it from blowing directly on the user and improving the user experience; in addition, the exhaust end of the exhaust pipe 2 is not visible from the front, enhancing the dishwasher's aesthetics.

[0029] In addition, a filter screen 4 is detachably provided in the through hole 32. The filter screen 4 not only filters the airflow discharged from the exhaust pipe 2 to the outside, but also prevents external debris from entering the door body 3 through the through hole 32. To improve aesthetics, the outer surface of the filter screen 4 is flush with the outer surface of the side wall of the door body 3. The filter screen 4 can adopt an existing structure.

[0030] like Figure 5 As shown, in this embodiment, the periphery of the through hole 32 extends inward to form a support platform 33, and the free end of the support platform 33 is vertically bent to form a limiting part 34. A magnetic element 41 is provided on the edge of the filter screen 4, and the magnetic element 41 is located on the support platform 33 and magnetically attracted to the limiting part 34. This method facilitates the disassembly and maintenance of the filter screen 4. The magnetic element can be a magnet, and the limiting part 34 can be a metal part, and the two can be magnetically attracted together.

[0031] In addition, the side of the door body 3 is provided with a chamber 35 that communicates with the through hole 32, and the exhaust end of the exhaust pipe 2 is connected to the chamber 35. In this way, after the airflow flows out of the exhaust pipe 2, it will be buffered in the chamber 35 to prevent the airflow speed from blowing off the filter screen 4 too fast, and the setting of the chamber 35 also facilitates the connection between the exhaust pipe 2 and the through hole 32.

[0032] In this embodiment, the exhaust pipe includes a housing 21 and a flexible hose 22 connected to the housing 21. The housing 21 is connected to the air inlet 31 of the door 3, and the flexible hose 22 is connected to the chamber 35. The flexible hose 22 can be bent to change its extension direction and is connected to the through hole 32.

[0033] The front of the housing 1 is open, and the door 3 is rotatably located at the opening of the housing 1 and can be opened and closed. When the door 3 is closed, the air inlet 31 of the door 3 faces the inside of the housing 1.

[0034] The housing 1 is provided with an air inlet that communicates with its interior. The side wall of the housing 1 is provided with a drying component for introducing hot airflow into the housing 1 from the air inlet. The drying component includes an air inlet pipe 5 and a fan 51. The air inlet pipe 5 is provided with a heating element, which can be an existing PTC heating element. The air outlet of the air inlet pipe 5 is connected to the air inlet of the housing 1, and the air inlet of the air inlet pipe 5 is connected to the air outlet of the fan 51. The air inlet of the fan 51 is connected to the outside.

[0035] The condensation at the exhaust end of exhaust pipe 2 is caused by the condensation of hot and humid gas as it passes through the long exhaust pipe 2, resulting in a decrease in temperature. To reduce the generation of condensation in exhaust pipe 2, in this embodiment, the lower part of the door 3 is rotatably connected to the housing 1 along its left-right axis. The housing 1 is equipped with a push rod 6 that can push the door 3 forward. When the door 3 is pushed to its limit position by the push rod 6, the exhaust area formed between the housing 1 and the door 3 is larger than the exhaust end of exhaust pipe 2. Furthermore, the housing 1 is equipped with a temperature and humidity sensor, which can adopt an existing structure.

[0036] In this way, combined with the door opening function, after washing, the top rod 6 opens the door 3 at a certain angle, allowing most of the hot and humid gas inside the chamber 1 to escape directly through the door gap, minimizing its passage through the exhaust pipe 2. Once the temperature and humidity sensor detects that the temperature and humidity of the gas escaping from the chamber 1 are below the threshold, the door 3 is closed, and exhaust occurs through the exhaust pipe 2. In this way, when the gas temperature and humidity inside the chamber 1 are high, opening the door directly disperses the gas into the air, resulting in a short exhaust path and reduced condensation. After the temperature and humidity have decreased, closing the door for drying also minimizes condensation. Closing the door at this point prevents foreign objects from entering the chamber and contaminating the tableware if the door is left open for drying for an extended period.

[0037] As can be seen from the above, the drying process in this embodiment is as follows: after the door is opened, the exhaust area is much larger than the exhaust port of the exhaust pipe 2, and the hot and humid gas inside the box 1 can be quickly dispersed into the surrounding environment. After the box 1 is basically dry, the door is closed and drying continues. At this time, passive exhaust can be used.

[0038] In this embodiment, the top rod 6 is one of the components of the door lock structure. The door lock structure can be referred to in Chinese invention patent application CN202211352309.8 (publication number CN115596287A), which discloses "Top rod, door lock structure and household appliance for door lock structure for household appliances".

[0039] Fan 51 is the main source of noise, and reducing the number of fans 51 is the most effective way to reduce noise. Because the drying assembly contains heating elements, without fan 51 blowing air, the heating elements would burn out, posing a safety hazard. As mentioned above, since the initial exhaust stage uses open exhaust, the exhaust pipe 2 is not needed at this time. Exhaust pipe 2 mainly participates in the later stages of drying and during cleaning and storage. Thus, even without a fan at exhaust pipe 2, it can still passively exhaust air. Therefore, in this embodiment, fan 51 serves not only as the power source for driving external airflow into intake pipe 5, but also as the power source for driving airflow in the housing 1 into exhaust pipe 2. In this way, exhaust pipe 2 and intake pipe 5 share a single fan 51, reducing the number of fans 51 and lowering noise.

Claims

1. A door assembly for a dishwasher, comprising a door body (3) and an exhaust pipe (2), wherein the door body (3) is provided with an air inlet (31) for communicating with the washing chamber of the dishwasher, and the exhaust pipe (2) is installed in the door body (3), wherein the air inlet end of the exhaust pipe (2) is connected to the air inlet (31), characterized in that, The side wall of the door (3) is provided with a through hole (32), and the exhaust end of the exhaust pipe (2) is connected to the through hole (32).

2. The door assembly according to claim 1, characterized in that: A filter screen (4) is provided in the through hole (32).

3. The door assembly according to claim 2, characterized in that: The filter (4) can be detachably installed in the through hole (32).

4. The door assembly according to claim 3, characterized in that: The periphery of the through hole (32) extends inward to form a support platform (33), and the free end of the support platform (33) is vertically bent to form a limiting part (34). The filter screen (4) is provided with a magnetic element (41), which is located on the support platform (33) and magnetically attracted to the limiting part (34).

5. The door assembly according to claim 3, characterized in that: The side of the door body (3) is provided with a chamber (35) that communicates with the through hole (32), and the exhaust end of the exhaust pipe (2) is connected to the chamber (35).

6. The door assembly according to any one of claims 1 to 5, characterized in that: The exhaust pipe includes a housing (21) and a flexible hose (22) connected to the housing (21). The housing (21) is connected to the air inlet (31) of the door (3), and the flexible hose (22) is connected to the chamber (35).

7. A dishwasher, characterized in that: Includes a housing (1) and a door assembly as described in any one of claims 1 to 6, wherein the housing (1) has a front opening, and the door (3) is movably disposed at the opening of the housing (1) and can be opened and closed. When the door (3) is closed, the air inlet (31) of the door (3) faces the interior of the housing (1).

8. The dishwasher according to claim 7, characterized in that: The box (1) is provided with an air inlet that communicates with its interior. The side wall of the box (1) is provided with a drying component for introducing hot airflow into the box (1) from the air inlet. The drying component includes an air inlet pipe (5) and a fan (51). The air inlet pipe (5) is provided with a heating element. The air outlet of the air inlet pipe (5) is connected to the air inlet of the box (1). The air inlet of the air inlet pipe (5) is connected to the air outlet of the fan (51). The air inlet of the fan (51) is connected to the outside.

9. The dishwasher according to claim 8, characterized in that: The lower part of the door (3) is rotatably connected to the box (1) along the left-right direction. The box (1) is provided with a push rod (6) that can push the door (3) forward. The exhaust area formed between the box (1) and the door (3) is larger than the exhaust end of the exhaust pipe (2). The box (1) is provided with a temperature and humidity sensor.

10. The dishwasher according to claim 8, characterized in that: The fan (51) also serves as the power source for the airflow in the drive housing (1) to enter the exhaust pipe (2).

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