Exhaust pipe structure for dish washing machine and dish washing machine

Abstract

The exhaust pipe structure comprises an exhaust pipe, an air inlet and an air outlet which are communicated with the interior of the exhaust pipe are formed in the exhaust pipe, and a liquid collecting groove is formed in the position, close to the air outlet, of the exhaust pipe. The cabinet door is characterized in that the sectional area of the exhaust port is gradually reduced in the airflow flowing direction, gas contraction is promoted, the exhaust rate of hot air can be guaranteed, and the hot air is prevented from diffusing near the exhaust port and corroding door body glass or a cabinet; and a guide structure for guiding the condensate water towards the liquid collecting tank is also arranged between the exhaust port and the liquid collecting tank, so that even if a small amount of condensate water is formed at the exhaust port, the condensate water can be guided into the liquid collecting tank, and the probability that the condensate water drops on the ground is reduced.

Description

Technical Field

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

[0002] At present, dishwashers are widely used in home kitchens. Generally, after the washing process is completed, a large amount of water and water vapor will remain inside the dishwasher cavity (basket, tableware, liner, bottom, etc.). During the drying process, the high-temperature hot air will take out the water vapor and discharge it into the air. The exhaust duct outlet is generally set on the lower side of the door body, facing the front. Due to the lower temperature outside, the high-temperature and high-humidity gas will quickly condense in the duct and the pipe mouth, forming water beads or water droplets. Some of them will evaporate with the hot air, and some will drip onto the ground or cabinet, causing a poor user experience.

[0003] In response to the above problems, the Chinese utility model patent with patent number CN202221126127.4 (publication number CN217852838U) discloses "Exhaust tail pipe for cleaning machine and cleaning machine". The exhaust tail pipe includes a longitudinally extending exhaust pipe, the interior of which is hollow to form an exhaust channel, the lower end of the exhaust pipe is bent horizontally to one side to form a water storage tank for storing condensed water, and the side wall of the exhaust pipe is provided with an exhaust port located above the water storage tank and connected to the exhaust channel and the water storage tank. The utility model sets a water storage tank at the lower end of the exhaust pipe. During the downward transportation of the high-temperature gas with moisture, the condensed water formed is stored in the water storage tank, and other steam is discharged through the exhaust port. The accumulated water temporarily stored in the water storage tank is continuously evaporated and dried under the high temperature of the steam, and there is no need to discharge the accumulated liquid. This not only solves the problem of condensed water dripping at the outlet, but is also very convenient to use.

[0004] Although this patent has set up a water storage tank to prevent condensation water from dripping onto the ground, if the flow rate of the airflow flowing out of the exhaust port is too slow, condensation water will easily form in the exhaust pipe. If there is too much condensation water, it will easily overflow the exhaust port and drip onto the ground. In addition, if the flow rate of the airflow at the exhaust port is too slow, it will easily diffuse when it just flows out of the exhaust port, corroding the door glass or cabinet. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide an exhaust pipe structure for a dishwasher which can enable airflow to flow out quickly from an exhaust port in view of the current status of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a dishwasher using the exhaust pipe structure according to the current status of the prior art.

[0007] The technical solution adopted by the utility model to solve the first technical problem mentioned above is: an exhaust pipe structure for a dishwasher, including an exhaust pipe, the exhaust pipe is provided with an air inlet and an exhaust port both connected to the interior thereof, a liquid collecting tank is formed on the exhaust pipe at a position adjacent to the exhaust port, and is characterized in that: the cross-sectional area of ​​the exhaust port gradually decreases along the flow direction of the air flow, and a guide structure for guiding condensed water toward the liquid collecting tank is further provided between the exhaust port and the liquid collecting tank.

[0008] In the above scheme, the exhaust pipe includes a tube body and an exhaust portion located at the lower end of the tube body, the exhaust portion includes a connecting portion connected to the lower end of the tube body and a transverse portion extending laterally from the connecting portion, the liquid collecting tank is located at the junction of the connecting portion and the transverse portion, the air inlet is located on the tube body, and the exhaust port is located on the transverse portion.

[0009] Preferably, the bottom wall of the transverse portion is inclined downward from the exhaust port toward the liquid collecting tank to form a first inclined surface; the top wall of the transverse portion is inclined upward from the exhaust port toward the tube body to form a second inclined surface. Thus, the first inclined surface and the second inclined surface make the exhaust port in a bell-mouth shape, and the cross-sectional area of ​​the exhaust port gradually decreases along the airflow direction.

[0010] Preferably, the angle between the first inclined plane and the horizontal plane is α, 2°≤α≤5°; the angle between the second inclined plane and the horizontal plane is β, 10°≤β≤25°, which has a good compression effect on the airflow, allowing it to be quickly discharged from the exhaust port.

[0011] Preferably, the first inclined surface is the guide structure, so that the first inclined surface is not only a part of the bell-mouth shape of the exhaust port, but also can guide the condensed water, and multiple functions can be achieved through a simple structure.

[0012] Preferably, a plurality of columns are arranged in the exhaust port at intervals along its width direction, and the columns divide the exhaust port into at least two exhaust holes, thereby reducing the collection of hot air and avoiding the generation of condensed water; at the same time, preventing the exhaust port from deforming and shrinking due to heat, which is not conducive to the discharge of hot air.

[0013] Preferably, along the direction of the airflow, the upstream end of the column is a tip with a cross section gradually increasing along the direction of the airflow, which can guide the hot air at the exhaust port, prevent the airflow from gathering to form a vortex, increase the exhaust rate, and allow the hot air to quickly discharge from the exhaust pipe.

[0014] Preferably, the width of the exhaust portion is greater than the width of the lower end of the tube body connected thereto, which can increase the exhaust flow rate, facilitate the rapid discharge of hot air, shorten the hot air discharge time, and prevent condensation water from forming at the outlet.

[0015] In the above solution, the longitudinal section of the exhaust pipe is in an inverted V shape as a whole.

[0016] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a dishwasher, characterized in that it includes a box body with an opening on the front side and a door body movably arranged at the opening of the box body, the door body opens or closes the opening of the box body, an exhaust pipe is installed on the door body, and an air outlet connected to the air inlet on the exhaust pipe is provided on the door body.

[0017] Compared with the prior art, the utility model has the following advantages: the utility model makes the cross-sectional area of ​​the exhaust port gradually smaller along the direction of air flow, thereby causing the gas to shrink, thereby ensuring the exhaust rate of hot air and preventing the hot air from diffusing near the exhaust port and corroding the door glass or cabinet; and a guide structure for guiding condensed water toward the liquid collecting tank is also provided between the exhaust port and the liquid collecting tank, so that even a small amount of condensed water formed at the exhaust port can be directed into the liquid collecting tank, reducing the probability of condensed water dripping onto the ground. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 for Figure 1 Schematic diagram of the decomposition of

[0020] Figure 3 for Figure 2 A schematic diagram of the exhaust pipe structure;

[0021] Figure 4 for Figure 3 A schematic cross-sectional view of a local structure;

[0022] Figure 5 for Figure 3 A cross-sectional view of

[0023] Figure 6 This is a schematic diagram of the partial structure of the exhaust pipe of Example 2 of the utility model;

[0024] Figure 7 for Figure 6 Cross-sectional view (longitudinal section);

[0025] Figure 8 for Figure 6 Another cross-sectional view (cross section);

[0026] Fig. 9 This is a schematic diagram of the partial structure of the exhaust pipe of Example 3 of the utility model. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] like Figures 1 to 5As shown, the dishwasher of this preferred embodiment includes a cabinet 1, a door 2 and an exhaust pipe structure A.

[0029] The front side of the box body 1 is open, and the door body 2 is movably arranged at the opening of the box body 1, and the door body 2 opens or closes the opening of the box body 1.

[0030] The exhaust pipe structure A includes an exhaust pipe 3, which is installed on the door body 2. The exhaust pipe 3 is provided with an air inlet 31 and an exhaust port 32 which are both connected to the interior thereof. The door body 2 is provided with an air outlet 21 which is connected to the air inlet 31 on the pipe body 34. The air inlet 31 is located above the exhaust port 32. This is the prior art and will not be described in detail here.

[0031] A liquid collecting tank 33 is formed at the bottom of the exhaust pipe 3. In the present embodiment, the exhaust pipe 3 includes a tube body 34 and an exhaust portion 35 located at the lower end of the tube body 34. The exhaust portion 35 includes a connecting portion 351 connected to the lower end of the tube body 34 and a transverse portion 352 extending transversely from the connecting portion 351. The liquid collecting tank 33 is located at the junction of the connecting portion 351 and the transverse portion 352. The air inlet 31 is located on the tube body 34, the exhaust port 32 is located on the transverse portion 352, and the liquid collecting tank 33 is arranged adjacent to the exhaust port 32.

[0032] The cross-sectional area of ​​the exhaust port 32 gradually decreases along the direction of air flow, causing the gas to shrink, thereby ensuring the exhaust rate of hot air and preventing the hot air from diffusing near the outlet and corroding the door 2 glass or cabinet; in addition, a guide structure is provided between the exhaust port 32 and the liquid collecting tank 33 to guide the condensed water toward the liquid collecting tank 33, so that even a small amount of condensed water formed at the exhaust port 32 can be diverted into the liquid collecting tank 33, reducing the probability of condensed water dripping onto the ground.

[0033] In order to form the above structure: the bottom wall of the transverse portion 352 is inclined downward from the exhaust port 32 toward the liquid collecting tank 33 to form a first inclined surface 36; the top wall of the transverse portion 352 is inclined upward from the exhaust port 32 toward the tube body 34 to form a second inclined surface 37. In this way, the first inclined surface 36 and the second inclined surface 37 cooperate to make the exhaust port 32 in a bell-mouth shape, and the cross-sectional area of ​​the exhaust port 32 gradually decreases along the flow direction of the airflow. The angle between the first inclined surface 36 and the horizontal plane is α, 2°≤α≤5°; the angle between the second inclined surface 37 and the horizontal plane is β, 10°≤β≤25°, which has a good compression effect on the airflow, so that it can be quickly discharged from the exhaust port 32.

[0034] In this embodiment, the first inclined surface 36 is a guide structure, which is not only a part of the bell-mouth shape of the exhaust port 32, but also can guide the condensed water, and can achieve multiple functions through a simple structure.

[0035] A plurality of columns 4 are arranged in the exhaust port 32 in sequence along its width direction. The columns 4 divide the exhaust port 32 into at least two exhaust holes 321, thereby reducing the collection of hot air and avoiding the generation of condensed water; at the same time, it prevents the exhaust port 32 from deforming and shrinking due to heat, which is not conducive to the discharge of hot air.

[0036] Along the direction of the airflow, the upstream end of the column 4 is a tip 41 whose longitudinal section gradually expands along the direction of the airflow, which can guide the hot air at the exhaust port 32 to prevent the airflow from forming a vortex, increase the exhaust rate, and allow the hot air to be quickly discharged from the exhaust pipe 3.

[0037] In addition, the width of the exhaust portion 35 is greater than the width of the lower end of the tube body 34 connected thereto, thereby increasing the exhaust flow rate, facilitating the rapid discharge of hot air, and preventing condensed water from being generated at the outlet.

[0038] Example 2

[0039] like Figures 6 to 9 As shown, this embodiment differs from Embodiment 1 in the following ways, and for other differences, please refer to Embodiment 1.

[0040] 1. The column 4 of this embodiment is specifically in the shape of a shark fin, so that the upstream end of the column 4 is a tip 41 with a cross section gradually increasing along the airflow direction.

[0041] 2. The longitudinal section of the exhaust pipe 3 is in an inverted V shape as a whole, so that the width of the exhaust portion 35 is greater than the width of the lower end of the pipe body 34 connected thereto.

[0042] Example 3

[0043] This embodiment differs from Embodiment 1 in the following ways. For other differences, please refer to Embodiment 1.

[0044] The width of the exhaust portion 35 of this embodiment is not significantly greater than the width of the lower end of the tube body 34 connected thereto.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0046] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. An exhaust pipe structure for a dishwasher, comprising an exhaust pipe (3), wherein the exhaust pipe (3) is provided with an air inlet (31) and an exhaust port (32) both of which are in communication with the interior thereof, and wherein a liquid collecting tank (33) is formed on the exhaust pipe (3) at a position adjacent to the exhaust port (32), wherein: The cross-sectional area of ​​the exhaust port (32) gradually decreases along the airflow direction, and a guide structure for guiding condensed water toward the liquid collecting tank (33) is provided between the exhaust port (32) and the liquid collecting tank (33).

2. The exhaust pipe structure according to claim 1, characterized in that: The exhaust pipe (3) comprises a tube body (34) and an exhaust portion (35) located at the lower end of the tube body (34); the exhaust portion (35) comprises a connecting portion (351) connected to the lower end of the tube body (34) and a transverse portion (352) extending transversely from the connecting portion (351); the liquid collecting tank (33) is located at the junction of the connecting portion (351) and the transverse portion (352); the air inlet (31) is located on the tube body (34); and the exhaust port (32) is located on the transverse portion (352).

3. The exhaust pipe structure according to claim 2, characterized in that: The bottom wall of the transverse portion (352) slopes downward from the exhaust port (32) toward the liquid collecting tank (33) to form a first slope (36); the top wall of the transverse portion (352) slopes upward from the exhaust port (32) toward the tube body (34) to form a second slope (37).

4. The exhaust pipe structure according to claim 3, characterized in that: The included angle between the first inclined plane (36) and the horizontal plane is α, 2°≤α≤5°; the included angle between the second inclined plane (37) and the horizontal plane is β, 10°≤β≤25°.

5. The exhaust pipe structure according to claim 3, characterized in that: The first inclined surface (36) is the guiding structure.

6. The exhaust pipe structure according to any one of claims 1 to 5, characterized in that: A plurality of columns (4) are sequentially arranged in the exhaust port (32) along its width direction, and the columns (4) divide the exhaust port (32) into at least two exhaust holes (321).

7. The exhaust pipe structure according to claim 6, characterized in that: Along the direction of the airflow, the upstream end of the column (4) is a tip (41) whose cross section gradually increases along the direction of the airflow.

8. The exhaust pipe structure according to any one of claims 2 to 5, characterized in that: The width of the exhaust portion (35) is greater than the width of the lower end of the tube body (34) connected thereto.

9. The exhaust pipe structure according to claim 8, characterized in that: The exhaust pipe (3) has an overall longitudinal section in an inverted V shape.

10. A dishwasher, characterized in that: It comprises a box body (1) with an opening at the front side and a door body (2) movably arranged at the opening of the box body (1), the door body (2) opens or closes the opening of the box body (1), an exhaust pipe (3) as described in any one of claims 1 to 9 is installed on the door body (2), and the door body (2) is provided with an air outlet (21) connected to an air inlet (31) on the exhaust pipe (3).

Images