Air supply mechanism and dish washing machine

Abstract

The utility model discloses an air supply mechanism and a dish-washing machine, the air supply mechanism comprises a shell, an air duct is arranged in the shell, and an air inlet and an air outlet which are communicated with the air duct are formed in the shell; a fan is mounted in the shell, an air inlet and an air outlet are formed in the fan, the air inlet is communicated with the air inlet, and the air outlet is communicated with the air duct; an included angle is formed between a central reference line Q1 of the air inlet and a central reference line Q2 of the air outlet, and the range of the included angle is 100-125 degrees; the corner of the air duct is a fillet, and a one-way valve assembly is arranged in the air duct. The dish washing machine comprises an inner container and the air supply mechanism, the air supply mechanism is installed on the side wall of the inner container, and a heating pipe assembly is installed on the inner container. The air supply mechanism has the beneficial effects that the corners of the air duct in the air supply mechanism are designed into the round corners, so that loss of wind power in the air duct is avoided, and wind is guided to the air outlet; the air supply mechanism is simple in structure and can cooperate with the heating pipe assembly to improve the drying efficiency of the dishwasher.

Description

Technical Field

[0001] This application relates to the field of dishwasher technology, and in particular to an air delivery mechanism and a dishwasher. Background Technology

[0002] After a dishwasher finishes its cleaning cycle, some water often remains on the surface of the dishes. If not cleaned promptly, this can easily lead to bacterial growth and pose a hygiene risk. Therefore, after the dishwasher finishes washing, a fan system typically uses hot air to dry the remaining water. However, when the hot air enters the dishwasher, it rises immediately, failing to distribute the heat evenly throughout, thus affecting the drying efficiency. Furthermore, dishwashers usually have a multi-layered structure; if water vapor is not promptly released, it can condense on the inner drum, re-contaminating the dishes.

[0003] Currently, the corners on the air supply mechanism are generally right angles. During air supply, the air blows vertically towards the right angle side, which may cause a rebound phenomenon, resulting in reduced airflow and affecting the dishwasher's drying efficiency. In addition, conventional air supply mechanisms generally do not have a blocking function. When the air supply mechanism stops supplying air, water vapor inside the dishwasher will enter the interior of the air supply mechanism and adhere to it as condensation, increasing the likelihood of fan malfunction. Utility Model Content

[0004] One objective of this application is to provide an air supply mechanism that can solve at least one of the defects in the aforementioned background art.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: an air supply mechanism, comprising a housing, characterized in that an air duct is provided inside the housing, and an air inlet and an air outlet communicating with the air duct are provided on the housing; a fan is installed inside the housing, and an air inlet and an air outlet are provided on the fan, the air inlet communicating with the air outlet, and the air outlet communicating with the air duct; there is an angle between the center reference line Q1 of the air inlet and the center reference line Q2 of the air outlet, the angle ranging from 100° to 125°; the corners of the air duct are rounded, and a one-way valve assembly is provided inside the air duct. This setup allows for increased airflow through the fan, improving the dishwasher's drying efficiency. When cold air encounters a corner in the duct, it flows towards the outlet under the guidance of the rounded corner, reducing airflow loss. In actual production, the angle of the arc where the rounded corner is located can be adjusted according to actual needs. The one-way valve assembly prevents hot air or condensate from entering the fan and damaging it.

[0006] Preferably, the angle between reference line Q1 and reference line Q2 is 112°. This setting can reduce the wind power loss rate within the air duct.

[0007] Preferably, the one-way valve assembly includes a mounting hole and a baffle. The mounting hole is located on the inner wall of the housing, and one end of the baffle is rotatably mounted in the mounting hole to block backflow of hot air. A stop is provided on the housing near the mounting hole, and the end of the baffle away from the mounting hole is abutted against the stop to limit the initial position of the baffle. With this configuration, when air enters the duct, the baffle can be pushed open, and then the air enters the dishwasher through the outlet for drying. When the air stops, the baffle returns to its initial position under gravity, isolating the duct and preventing condensate from entering the fan. The stop, on the one hand, limits the initial position of the baffle, preventing it from getting stuck in the duct during rotation and affecting air transmission; on the other hand, it prevents condensate from entering the fan through the gap between the baffle and the housing.

[0008] Preferably, the baffle is strip-shaped, and there is an angle between the initial position of the baffle and the side wall of the housing, with the angle ranging from 45° to 65°. This configuration reduces the wind force required to drive the baffle, allowing even a lower wind speed to propel it.

[0009] Preferably, a baffle rib is provided inside the air outlet, and the end of the baffle rib away from the air outlet is inclined towards the fan. This arrangement can improve the structural strength of the air outlet, and the baffle rib can also guide the airflow, changing the speed at which the cold air flows towards the air outlet through the separation effect of the baffle rib, allowing it to pass through the air outlet more quickly.

[0010] Preferably, a mounting base is installed on the air outlet, and the mounting base is provided with a vent hole, which is connected to the air duct through the air outlet. With this configuration, cold air can enter the interior of the dishwasher through the vent hole.

[0011] Preferably, the vent is provided with a flow divider, which is honeycomb-shaped. This configuration disperses the airflow into multiple streams as it enters the dishwasher, ensuring even airflow and improving drying efficiency; it also effectively reduces noise generated when the airflow passes through the flow divider.

[0012] Another object of this application is to provide a dishwasher that can solve at least one of the defects in the above-mentioned background art.

[0013] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a dishwasher, including an inner tub and the aforementioned air supply mechanism, wherein the air supply mechanism is installed on the side wall of the inner tub and is in communication with the inner tub; a heating element assembly is installed on the inner tub. With this configuration, the heating element assembly can heat the air inside the inner tub, and then the air supply mechanism can deliver air into the interior of the inner tub to evenly distribute the hot air near the heating element assembly to various parts of the inner tub, thereby improving the drying efficiency of the dishwasher.

[0014] Preferably, an exhaust port is provided on the side of the inner liner away from the air supply mechanism. The exhaust port is connected to the inner liner, and an exhaust assembly is installed on the exhaust port. This arrangement allows water vapor in the inner liner to be discharged in a timely manner, preventing water vapor from condensing and re-forming into water droplets that adhere to the tableware, thus affecting the drying efficiency.

[0015] Preferably, the exhaust port is diagonally positioned opposite the flow divider, and the exhaust port is located below the flow divider. This arrangement allows the hot air circulating in the inner liner to be discharged from the inner liner under air pressure, thus extending the residence time of the cold air in the inner liner from the air supply mechanism.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] This application installs a heating element assembly on the inner tub of the dishwasher, which prevents condensation from forming in the air supply mechanism and causing fan failure. The air can disperse the hot air in the inner tub to all corners in a timely manner, avoiding uneven drying caused by excessively high local temperatures. In addition, the inner tub is also equipped with an exhaust assembly that connects the inner tub to the outside, which can promptly discharge water vapor in the inner tub to the outside.

[0018] This application designs the corners of the air duct in the air supply mechanism as rounded corners to avoid air loss in the air duct and guide the airflow to the air outlet; in addition, a baffle is installed rotatably in the air duct, and the opening and closing angle can be freely controlled according to the air flow rate; when the air stops, the baffle returns to the initial position under the action of gravity, sealing the air duct and preventing condensate in the air supply mechanism from entering the fan. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the air supply mechanism in this application.

[0020] Figure 2 This is a schematic diagram of the overall structure of the air supply mechanism in this application.

[0021] Figure 3 This is a schematic diagram of the planar structure of the air supply mechanism in this application.

[0022] Figure 4 This is a schematic diagram of the installation of the mounting base and the housing in this application.

[0023] Figure 5 This is a schematic diagram of the installation of the diversion component in this application.

[0024] Figure 6 This is a schematic diagram of the dishwasher in this application. Figure 1 .

[0025] Figure 7 This is a schematic diagram of the dishwasher in this application. Figure 2 .

[0026] In the diagram: 1. Shell; 11. Air inlet; 12. Air outlet; 13. Air duct; 14. Rounded corner; 15. Mounting hole; 16. Baffle; 100. Baffle plate; 2. Fan; 21. Air inlet; 22. Air outlet; 200. Baffle rib; 3. Mounting base; 31. Vent hole; 300. Limiting strip; 4. Inner liner; 41. Heating tube assembly; 42. Exhaust port; 43. Exhaust assembly; 400. Diverter. Detailed Implementation

[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and should not be construed as limiting the specific protection scope of this application.

[0029] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0031] One aspect of this application provides a blower mechanism 2, such as... Figure 1 and Figure 2 As shown, one preferred embodiment includes a housing 1, which has an air inlet 11 and an air outlet 12. An air duct 13 is provided inside the housing 1, with one end connected to the air inlet 11 and the other end connected to the air outlet 12, so that air entering the air inlet 11 flows to the air outlet 12 under the guidance of the air duct 13. To improve the drying efficiency of the dishwasher, a fan 2 is installed inside the housing 1. The air inlet 21 of the fan 2 is aligned with the air inlet 11, and the air outlet 22 of the fan 2 is aligned with the air duct 13. This improves the flow rate of the cold air and avoids airflow loss during transmission.

[0032] Understandably, in the existing technology, the corner of the air duct 13 is generally a right angle. If the cold air blows vertically toward the right angle side, a rebound phenomenon may occur, which will reduce the wind force of the cold air.

[0033] It should be understood that when cold air is transmitted within the air duct 13, the wind force will decrease as the transmission time increases. Therefore, in order to reduce the loss of wind force within the air duct, the air duct 13 can be designed to be shorter.

[0034] Based on this, such as Figure 3 As shown, the reference line passing through the midpoint of the air inlet 11 and parallel to the housing 1 is Q1, and the reference line passing through the midpoint of the air outlet 12 and parallel to the housing 1 is Q2. When the angle between Q1 and Q2 is in the range of 100°~125°, the air duct 13 can be designed to be shorter. In this embodiment, the length of the air duct 13 is shortest when the angle between Q1 and Q2 is 112°.

[0035] Furthermore, such as Figure 2 As shown, the corner of the air duct 13 is set as a rounded corner 14. When the cold air hits the rounded corner 14, it can flow along the arc surface of the rounded corner 14 under the guidance of the rounded corner 14, thereby reducing the loss of air force and improving the drying efficiency of the dishwasher.

[0036] It should be understood that when the hot air from the dishwasher flows back into the air duct 13, condensation will form inside the housing 1. If the condensation enters the fan 2, it may damage the fan 2. Therefore, in some embodiments of this application, a one-way valve assembly is installed in the air duct 13 to prevent hot air or condensation from entering the fan 2.

[0037] Furthermore, such as Figure 2As shown, the one-way valve assembly includes a mounting hole 15 and a baffle 100. The baffle 100 is strip-shaped. The mounting hole 15 is located on the inner wall of the housing 1. One end of the baffle 100 is rotatably mounted in the mounting hole 15 to block the backflow of hot air or condensate. When cold air enters the air duct 13, it can push the baffle 100 open. Then, the cold air enters the interior of the dishwasher through the air outlet 12 to disperse the hot air. When the cold air stops, the baffle 100 returns to its initial position under its own gravity, blocking the air duct 13 and preventing water vapor inside the dishwasher from entering the fan 2 and affecting the normal operation of the fan 2.

[0038] It should be noted that the width of the baffle 100 should be adapted to the height of the air duct 13 to avoid the baffle 100 scraping against the inner wall of the housing 1 during rotation; the baffle 100 is made of hard plastic, stainless steel or other materials that are not easy to rust; in addition, the weight of the end of the baffle 100 away from the mounting hole 15 can be designed to be greater in order to improve the speed of the baffle 100 returning to center.

[0039] In this embodiment, as Figure 1 As shown, a baffle 16 is provided on the housing 1 at a position away from the mounting hole. One end of the baffle 100 away from the mounting hole 15 is in contact with the end face of the baffle 16 to limit the initial position of the baffle 100 and prevent condensate from bypassing the baffle 100 and entering the fan 2.

[0040] Specifically, such as Figure 2 As shown, in order to reduce the wind force required to push the baffle 100, there is an angle between the initial position of the baffle 100 and the side wall of the housing 1, which is used to reduce the wind force required for the cold air to push the baffle 100, so that the cold air with a smaller flow rate can push the baffle 100; wherein, the angle between the initial position of the baffle 100 and the side wall of the housing 1 is in the range of 45°~65°, preferably 60°.

[0041] Understandably, in actual production, the angle between the initial position of the baffle 100 and the side wall of the housing 1 can be adjusted according to the power of the fan 2 and the weight of the baffle 100.

[0042] In this embodiment, as Figure 2 As shown, a baffle 200 is provided in the middle of the air outlet 12, which divides the air outlet 12 into two parts. The end of the baffle 200 away from the air outlet 12 is inclined towards the fan 2. When cold air flows in the air duct 13, some of the cold air will collide with the baffle 200 and then flow towards the air outlet 12 along the end face of the baffle 200 under the guidance of the baffle 200, so that the cold air can flow to the air outlet 12 more quickly. In addition, the baffle 200 can also increase the structural strength of the air outlet 12 and prevent the air outlet 12 from being deformed by external objects.

[0043] Furthermore, such as Figure 4 As shown, a mounting base 3 is installed on the air outlet 12. When cold air enters the interior of the mounting base 3, it is blocked by the inner wall of the mounting base 3, thereby changing the flow direction of the cold air. In order to allow the cold air to enter the interior of the dishwasher, a vent 31 is provided on the mounting base 3. The vent 31 is connected to the air duct 13 through the air outlet 12, so as to ensure that the cold air in the air duct 13 can pass through the vent 31 and enter the interior of the dishwasher.

[0044] It should be understood that when cold air enters the mounting base 3, the interior of the mounting base 3 will block the cold air, thereby reducing the flow rate of the cold air and causing the cold air to condense into an air mass within the mounting base 3. If the cold air enters the dishwasher directly through the vent 31 at this time, it may reduce the drying efficiency of the dishwasher.

[0045] In this embodiment, such as Figure 5 As shown, a flow divider 400 is installed on the inner wall of the vent 31, and the flow divider 400 is provided with small holes for dispersing airflow. When the cold air is gathered in the mounting base 3, it can be pushed by the cold air behind it and enter the interior of the dishwasher through the flow divider 400. The flow divider 400 can divide the cold air into multiple streams. According to the principle of aerodynamics, when gas passes through a narrow gap, its flow velocity will increase. Therefore, the cold air in this application will increase its flow rate after passing through the flow divider 400, thereby improving the drying efficiency of the dishwasher.

[0046] Specifically, such as Figure 5 As shown, the holes on the diverter 400 are honeycomb-shaped, which further improves the space utilization of the diverter 400, allowing more cold air to enter the dishwasher. In addition, because the honeycomb holes adopt a streamlined design, they can effectively reduce airflow resistance, thereby reducing the noise generated when cold air passes through the diverter 400, providing users with a quiet environment.

[0047] In this embodiment, as Figure 2 As shown, a limit bar 300 is provided inside the housing 1 to limit the fan 2, which further improves the installation stability of the fan 2 and prevents the fan 2 from shifting under vibration during operation.

[0048] Another aspect of the application provides a dishwasher, such as Figure 6 As shown, one preferred embodiment includes an inner liner 4 and the aforementioned air supply mechanism. The air supply mechanism is installed on one side wall of the inner liner 4 and communicates with the interior of the inner liner 4 through a diverter 400 to ensure that cold air can enter the inner liner 4.

[0049] Furthermore, such as Figure 6As shown, a heating tube assembly 41 is installed on the inner liner 4 to heat the air inside the inner liner 4. When cold air enters the inner liner 4, it disperses the hot air in the inner liner 4, accelerates the flow speed of the hot air, and forms hot air that is evenly distributed to all parts of the inner liner 4. In addition, as cold air is continuously input, hot air circulates inside the inner liner 4, further improving the drying efficiency of the dishwasher.

[0050] Understandably, when the moisture in the inner tub 4 evaporates due to the heat, it will be distributed within the inner tub 4 as water vapor. If this water vapor is not removed in time, it will re-adhere to the inner tub 4 of the dishwasher when the air supply mechanism stops, contaminating the dishes. In addition, the air from the air supply mechanism will continuously enter the inner tub 4. If it is not removed in time, it will cause excessive air pressure in the inner tub 4, thereby reducing the air supply efficiency of the air supply mechanism.

[0051] Therefore, in this embodiment, as Figure 6 and Figure 7 As shown, an exhaust port 42 is provided on the side of the inner liner 4 away from the air supply mechanism, and an exhaust assembly 43 is installed on the exhaust port 42; the exhaust assembly 43 is connected to the inner liner 4 through the exhaust port 42; it can promptly discharge water vapor and dried hot air to the outside, effectively improving the drying efficiency of the dishwasher.

[0052] Specifically, such as Figure 6 As shown, the exhaust port 42 is diagonally arranged with the diverter 400, and the exhaust port 42 is located below the diverter 400. This is used to extend the circulation time of the cold air delivered by the air supply mechanism in the inner liner 4. After the cold air and hot air in the inner liner 4 have merged and circulated multiple times, the hot air enters the exhaust assembly 43 through the exhaust port 42 under the action of air pressure, and is then discharged to the outside.

[0053] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An air supply mechanism, comprising a housing (1), characterized in that, The housing (1) is provided with an air duct (13) inside. The housing (1) is provided with an air inlet (11) and an air outlet (12) that are connected to the air duct (13). A fan (2) is installed inside the housing (1). The fan (2) is provided with an air inlet (21) and an air outlet (22). The air inlet (21) is connected to the air inlet (11), and the air outlet (22) is connected to the air duct (13). There is an angle between the center reference line Q1 of the air inlet (11) and the center reference line Q2 of the air outlet (12). The angle range is 100°~125°. The corner of the air duct (13) is set as a rounded corner (14). A one-way valve assembly is provided inside the air duct (13).

2. The air supply mechanism as described in claim 1, characterized in that, The angle between reference line Q1 and reference line Q2 is 112°.

3. The air supply mechanism as described in claim 1, characterized in that, The one-way valve assembly includes a mounting hole (15) and a baffle (100). The mounting hole (15) is disposed on the inner wall of the housing (1). One end of the baffle (100) is rotatably mounted on the mounting hole (15) to block the return hot air. A baffle (16) is disposed on the side wall of the housing (1) near the mounting hole (15). One end of the baffle (100) away from the mounting hole (15) is attached to the baffle (16) to limit the initial position of the baffle (100).

4. The air supply mechanism as described in claim 3, characterized in that, The baffle (100) is strip-shaped, and there is an angle between the initial position of the baffle (100) and the side wall of the housing (1), with the angle ranging from 45° to 65°.

5. The air supply mechanism as described in claim 1, characterized in that, A baffle (200) is provided inside the air outlet (12), and the end of the baffle (200) away from the air outlet (12) is inclined toward the fan (2).

6. The air supply mechanism as described in claim 1, characterized in that, An installation base (3) is installed on the air outlet (12), and a ventilation hole (31) is provided on the installation base (3). The ventilation hole (31) is connected to the air duct (13) through the air outlet (12).

7. The air supply mechanism as described in claim 6, characterized in that, A flow divider (400) is provided on the vent (31), and the flow divider (400) is honeycomb-shaped.

8. A dishwasher, comprising an inner tub (4) and a blower mechanism as described in any one of claims 1-7, characterized in that, The air supply mechanism is installed on the side wall of the inner liner (4) and is in communication with the inner liner (4); a heating tube assembly (41) is installed on the inner liner (4).

9. The dishwasher as described in claim 8, characterized in that, An exhaust port (42) is provided on the side of the inner liner (4) away from the air supply mechanism. The exhaust port (42) is connected to the inner liner (4), and an exhaust assembly (43) is installed on the exhaust port (42).

10. The dishwasher as described in claim 9, characterized in that, The exhaust port (42) is diagonally arranged with the diverter (400), and the exhaust port (42) is located below the diverter (400).

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