Tableware drying air inlet channel and dish washing machine

Abstract

The utility model provides a tableware drying air inlet channel and a dish-washing machine, and belongs to the technical field of dish-washing machines. The tableware drying air inlet channel comprises a first air inlet channel body, a second air inlet channel body, a third air inlet channel body and an air channel switching device, one end of the second air inlet channel body and one end of the third air inlet channel body are both connected with the first end of the first air inlet channel body, and a fan mounting part is arranged at the second end of the first air inlet channel body. The other end of the second air inlet channel and the other end of the third air inlet channel are provided with a first air outlet connector and a second air outlet connector correspondingly, and the air channel switching device is arranged at the connecting position of the first air inlet channel, the second air inlet channel and the third air inlet channel and is configured to open and close communication of the second air inlet channel and the first air inlet channel and / or close the second air inlet channel and the third air inlet channel. And the third air inlet channel communicates with the first air inlet channel.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to an air inlet channel for drying tableware and a dishwasher. Background Art

[0002] The existing dishwasher has an air outlet for drying dishes in the air inlet channel, which is connected to the air inlet of the inner tank. An air outlet assembly is provided on the top of the inner tank. A condensation air duct is provided on one side of the inner tank and connected to the air outlet assembly. The condensation air duct is connected to the base. The base is provided with an exhaust port. A bowl basket containing dishes is provided in the inner tank. The air enters the inner tank from the air inlet channel for drying dishes, flows through the dishes and then flows out from the top air outlet assembly, enters the condensation air duct to condense the hot air into water, and the condensed air is discharged from the exhaust hole of the base. This cycle is repeated to achieve the effect of drying the dishes. This air inlet structure has the problems of slow drying of dishes far from the air outlet, uneven drying effect and long drying time. Utility Model Content

[0003] The utility model aims to provide a tableware drying air inlet channel, which can improve the drying efficiency and drying uniformity.

[0004] The utility model also aims to provide a dishwasher, which achieves uniform air intake and improves drying efficiency.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] According to one aspect of the utility model, there is provided an air inlet channel for drying dishes, comprising a first air inlet channel, a second air inlet channel, a third air inlet channel and an air duct switch device, wherein one end of the second air inlet channel and the third air inlet channel are both connected to the first end of the first air inlet channel, a fan mounting portion is provided at the second end of the first air inlet channel, a first air outlet interface and a second air outlet interface are respectively provided at the other ends of the second air inlet channel and the third air inlet channel, the air duct switch device is provided at the connection portion of the first air inlet channel, the second air inlet channel and the third air inlet channel, and the air duct switch device is configured to open and close the connection between the second air inlet channel and the first air inlet channel, and / or the connection between the third air inlet channel and the first air inlet channel.

[0007] According to one embodiment of the utility model, the air duct switch device includes an air duct housing, a first air gate, a second air gate, a first motor and a second motor. The air duct housing is provided with a first air duct connected to the second air inlet channel and a second air duct connected to the third air inlet channel. The first air gate and the second air gate are movably installed on the air duct housing corresponding to the first air duct and the second air duct respectively. The first motor and the second motor are installed on the air duct housing respectively, and the first motor is connected to the first air gate, and the second motor is connected to the second air gate. The first motor drives the first air gate to separate or connect the first air inlet channel with the second air inlet channel, and the first air inlet channel is connected to the third air inlet channel through the second air duct.

[0008] According to an embodiment of the present utility model, the second air inlet channel and the third air inlet channel are both in an inverted V shape.

[0009] According to an embodiment of the present invention, the second air inlet channel and the third air inlet channel are jointly M-shaped.

[0010] According to one embodiment of the utility model, the first air inlet channel, the second air inlet channel and the third air inlet channel are formed by the first cover body and the second cover body, and the first air outlet interface and the second air outlet interface are both located on the second cover body.

[0011] According to one embodiment of the utility model, it also includes a fan, the fan mounting portion is surrounded by a mounting cavity adapted to the shape of the fan, the fan is installed in the mounting cavity of the fan mounting portion and the air outlet of the fan is connected to the first air inlet channel, and the fan mounting portion is provided with an air inlet hole corresponding to the air inlet of the fan.

[0012] According to one embodiment of the utility model, it also includes an airflow heating device, which is arranged in the first air inlet channel and located between the fan and the air duct switch device.

[0013] The second aspect of the embodiment of the utility model also discloses a dishwasher, including an electric control board, an inner tank, an exhaust device and the above-mentioned tableware drying air inlet channel, a first air inlet and a second air inlet are opened on one side of the inner tank, a first air exhaust is opened on the upper end of the inner tank, the first air outlet interface and the second air outlet interface are respectively connected to the first air inlet and the second air inlet, the exhaust device is connected to the first exhaust port, and the air duct switch device and the exhaust device are respectively electrically connected to the electric control board.

[0014] According to one embodiment of the utility model, a humidity sensor is further included. The humidity sensor is disposed in the exhaust device and is electrically connected to the electric control board.

[0015] According to one embodiment of the utility model, the first air inlet is located at the front of the inner liner, and the second air inlet is located at the rear of the inner liner; or the first air inlet is located at the upper part of the inner liner, and the second air inlet is located at the lower part of the inner liner.

[0016] An embodiment of the present invention has the following advantages or beneficial effects:

[0017] The utility model provides a dish drying air inlet channel, which includes a first air inlet channel, a second air inlet channel, a third air inlet channel and an air duct switch device. One end of the second air inlet channel and the third air inlet channel are connected to the first end of the first air inlet channel. A fan installation portion is provided at the second end of the first air inlet channel. The other ends of the second air inlet channel and the third air inlet channel are respectively provided with a first air outlet interface and a second air outlet interface. The air duct switch device is provided at the connection portion of the first air inlet channel, the second air inlet channel and the third air inlet channel. The air duct switch device is configured to open and close the connection between the second air inlet channel and the first air inlet channel, and / or the connection between the third air inlet channel and the first air inlet channel. The dish drying air inlet channel of the utility model embodiment is installed on a dishwasher, and the first air outlet interface and the second air outlet interface are respectively connected to the first air inlet and the second air inlet arranged front and back of the inner tank of the dishwasher, so as to realize the front and back alternating air inlet, thereby realizing the uniform air inlet and improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0019] Figure 1 The figure is a stereoscopic diagram of an air inlet passage for drying dishes according to an exemplary embodiment.

[0020] Figure 2 The figure is a disassembled view of a first cover body and a second cover body of a dish drying air inlet channel according to an exemplary embodiment.

[0021] Figure 3 FIG. 1 is an exploded view of an air inlet passage for drying dishes according to an exemplary embodiment.

[0022] Figure 4 The figure is a state diagram showing an air duct switch device opening a second air duct and closing a first air duct according to an exemplary embodiment.

[0023] Figure 5 The figure is a state diagram showing an air duct switch device opening a first air duct and closing a second air duct according to an exemplary embodiment.

[0024] Figure 6The figure is a bottom view of an air duct housing of an air inlet channel for drying dishes according to an exemplary embodiment.

[0025] Figure 7 is a perspective view showing a dishwasher according to an exemplary embodiment.

[0026] Figure 8 The figure is a disassembled view of an inner tank and a dish drying air inlet passage of a dishwasher according to an exemplary embodiment.

[0027] The reference numerals are described as follows:

[0028] 1. First air inlet channel; 11. Fan installation part; 111. Air inlet hole; 12. First cover body; 13. Second cover body; 2. Second air inlet channel; 21. First air outlet interface; 3. Third air inlet channel; 31. Second air outlet interface; 4. Air duct switch device; 41. Air duct shell; 411. First air duct; 412. Second air duct; 42. First air door; 43. Second air door; 44. First motor; 45. Second motor; 5. Fan; 6. Air flow heating device; 7. Inner tank; 71. First air inlet; 72. Second air inlet; 73. First air outlet; 8. Exhaust device; 81. Exhaust fan; 82. Condensation channel; 83. Exhaust channel; 9. Base; 91. Air outlet; 92. Second air outlet. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0030] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0031] like Figure 1-8 As shown, a dish drying air inlet channel according to an embodiment of the utility model comprises a first air inlet channel 1 , a second air inlet channel 2 , a third air inlet channel 3 and an air duct switch device 4 .

[0032] One end of the second air inlet channel 2 and the third air inlet channel 3 are both connected to the first end of the first air inlet channel 1, and the second end of the first air inlet channel 1 is provided with a fan mounting portion 11 for installing the fan 5. The other end of the second air inlet channel 2 is provided with a first air outlet interface 21, and the other end of the third air inlet channel 3 is provided with a second air outlet interface 31. The first air outlet interface 21 and the second air outlet interface 31 are configured to be connected to the inner tank 7 of the dishwasher to supply air into the inner tank respectively.

[0033] The air duct switch device 4 is arranged at the connection position of the first air inlet channel 1, the second air inlet channel 2 and the third air inlet channel 3, and the air duct switch device 4 is configured to open and close the connection between the second air inlet channel 2 and the first air inlet channel 1, and / or the connection between the third air inlet channel 3 and the first air inlet channel 1.

[0034] A dish drying air inlet channel of the embodiment of the utility model is installed on the dishwasher, and the first air outlet interface 21 and the second air outlet interface 31 are respectively connected to the inner tank 7 of the dishwasher, the air outlet of the fan 5 is connected to the second end of the first air inlet channel 1, and the air duct switch device 4 is electrically connected to the electronic control board of the dishwasher. When the controller of the electronic control board detects that the washing program enters the drying stage, it enters the stage such as Figure 4 The air flow diagram shown is Figure 4 The state diagram of the air duct switch device 4 opening the second air duct 412 and closing the first air duct 411, the fan 5 drives the air into the inner pot through the second air inlet 72 at the rear of the inner pot 7, and the hot and humid air after passing through the dishes enters the condensation air duct under the action of the exhaust device, and the condensed water flows into the inner pot 7 and is discharged through the water pump of the dishwasher, and the remaining air is discharged through the second air outlet 92 of the base 9. After running for 2 minutes, it enters the condensation air duct again. Figure 5 As shown in the air flow diagram, Figure 5 The state diagram of the air duct switch device 4 opening the first air duct 411 and closing the second air duct 412. The fan 5 allows air to enter the inner tank 7 through the first air inlet 71 at the front of the inner tank 7. After passing through the dishes, the hot and humid air is sucked into the condensation air duct by the exhaust device for condensation. The generated condensed water then flows into the inner tank 7 and is discharged through the water pump of the dishwasher, while the remaining air is discharged through the second air outlet 92 of the base 9, so as to achieve uniform air intake and improve drying efficiency.

[0035] like Figure 2-4 As shown, in a preferred embodiment of the present utility model, the first air inlet channel 1, the second air inlet channel 2 and the third air inlet channel 3 are formed by the first cover body 12 and the second cover body 13, and the first air outlet interface 21 and the second air outlet interface 31 are both located on the second cover body 13.

[0036] like Figure 4-6As shown, in a preferred embodiment of the present utility model, the air duct switch device 4 includes an air duct housing 41 , a first air door 42 , a second air door 43 , a first motor 44 and a second motor 45 .

[0037] The air duct housing 41 is provided with a first air duct 411 connected to the second air inlet channel 2 and a second air duct 412 connected to the third air inlet channel 3. The first air inlet channel 1 is connected to the second air inlet channel 2 through the first air duct 411, and the first air inlet channel 1 is connected to the third air inlet channel 3 through the second air duct 412.

[0038] The first air door 42 is movably installed on the air duct housing 41 corresponding to the first air duct 411 to open and close the first air duct 411 .

[0039] The second air door 43 is movably mounted on the air duct housing 41 corresponding to the second air duct 412 to open and close the second air duct 412 .

[0040] The first motor 44 and the second motor 45 are respectively mounted on the air duct housing 41 , and the first motor 44 is connected to the first damper 42 , and the second motor 45 is connected to the second damper 43 .

[0041] When the second air inlet channel 2 is closed, the first motor 44 drives the first damper 42 to close the first air channel 411, separating the first air inlet channel 1 from the second air inlet channel 2. When the second air inlet channel 2 is opened, the first motor 44 drives the first damper 42 to open the first air channel 411, connecting the first air inlet channel 1 with the second air inlet channel 2.

[0042] When the third air inlet channel 3 is closed, the second motor 45 drives the second damper 43 to close the second air duct 412 to separate the first air inlet channel 1 from the third air inlet channel 3. When the third air inlet channel 3 is opened, the second motor 45 drives the second damper 43 to open the second air duct 412 to connect the first air inlet channel 1 with the third air inlet channel 3.

[0043] Optionally, one end of the first damper 42 is fixedly connected to the first mounting shaft, the first mounting shaft is rotatably mounted on the air duct housing 41, one end of the first mounting shaft is provided with a first gear, the first motor 44 is a reduction motor, a second gear is provided on the rotating shaft of the first motor 44, and the second gear is meshed with the first gear. When the first motor 44 rotates forward, the first damper 42 opens the first air duct 411; when the first motor 44 rotates reversely, the first damper 42 closes the first air duct 411.

[0044] One end of the second damper 43 is fixedly connected to the second mounting shaft, and the second mounting shaft is rotatably mounted on the air duct housing 41. A third gear is disposed at one end of the second mounting shaft. The second motor 45 is a reduction motor. A fourth gear is disposed on the rotating shaft of the second motor 45, and the fourth gear is meshed with the third gear. When the second motor 45 rotates forward, the second damper 43 opens the second air duct 412; when the second motor 45 rotates reversely, the second damper 43 closes the second air duct 412.

[0045] Optionally, a first mounting groove 413 and a second mounting groove 414 with openings facing downward are respectively provided on both sides of the air duct shell 41, the first motor 44 is installed in the first mounting groove 413, and one end of the first mounting shaft extends into the first mounting groove 413; the second motor 45 is installed in the second mounting groove 414, and one end of the second mounting shaft extends into the second mounting groove 414.

[0046] like Figure 1-5 As shown in Figures 7 and 8, in a preferred embodiment of the utility model, the second air inlet channel 2 and the third air inlet channel 3 are both in an inverted V shape. The second air inlet channel 2 and the third air inlet channel 3 are both in an M shape. Since the second air inlet channel 2 and the third air inlet channel 3 both have a bending portion, water droplets or moisture splashed into the first air outlet interface 21 and the second air outlet interface 31 are prevented from directly entering the fan, thereby improving the service life of the motor and electronic components.

[0047] like Figure 2-5 As shown, in a preferred embodiment of the utility model, it also includes a fan 5, and the fan mounting portion 11 is surrounded by a mounting cavity that is adapted to the shape of the fan 5, the fan 5 is installed in the mounting cavity of the fan mounting portion 11 and the fan 5 is connected to the first air inlet channel 1, and an air inlet hole 111 is provided on one side of the fan mounting portion 11 corresponding to the air inlet of the fan 5, and the fan 5 is connected to the second air inlet channel 2 and / or the third air inlet channel 3 through the first air inlet channel 1.

[0048] The fan mounting portion 11 is integrally formed with the first air inlet passage 1, thereby achieving an aesthetically pleasing appearance of the dish drying air inlet passage.

[0049] like Figure 2-5 As shown, in a preferred embodiment of the present utility model, it also includes an airflow heating device 6, which is arranged in the first air inlet channel 1 and located between the fan 5 and the air duct switch device 4.

[0050] like Figure 7-8 As shown, the embodiment of the utility model further discloses a dishwasher, including an electric control panel, an inner tank 7, an exhaust device 8 and the above-mentioned tableware drying air inlet channel.

[0051] A first air inlet 71 and a second air inlet 72 are provided on one side of the inner tank 7, a first air outlet 73 is provided on the upper end of the inner tank 7, the first air outlet interface 21 and the second air outlet interface 31 are respectively connected to the first air inlet 71 and the second air inlet 72, the exhaust device 8 is connected to the first air outlet 73, and the air duct switch device 4 and the exhaust device 8 are respectively electrically connected to the electric control board. The first air inlet 71 is located at the front of the inner tank 7, and the second air inlet 72 is located at the rear of the inner tank 7, so as to achieve uniform air intake and improve drying efficiency.

[0052] According to one embodiment of the utility model, a humidity sensor is also included, and the humidity sensor is arranged in the exhaust device 8, and the humidity sensor is electrically connected to the electric control board. For example, when the humidity sensor detects that the humidity of the inner tank 7 is R≥Ra, the program determines whether the program has a dry state set. If so, the airflow heating device 6 is turned on to dry the tableware drying air inlet channel and the inner tank. When R≥Rb is detected, it is determined that the humidity of the inner tank 7 is normal, the airflow heating device 6 is turned off, and the program ends. This kind of alternating drying of the front and back air ducts can achieve more uniform drying of the tableware and speed up the drying time of the tableware.

[0053] Of course, the first air inlet 71 and the second air inlet 72 are not limited to being arranged front to back, but can also be arranged up and down. For example, the first air inlet 71 is located at the upper part of the inner liner 7, and the second air inlet 72 is located at the lower part of the inner liner 7.

[0054] In a preferred embodiment of the utility model, it also includes a base 9, the inner tank 7 is arranged on the base 9, and the two sides of the base 9 are respectively provided with an air intake port 91 and a second air outlet 92, the air inlet 111 is connected to the air intake port 91, and the air outlet of the exhaust device 8 is connected to the second air outlet 92.

[0055] In a preferred embodiment of the present utility model, the exhaust device 8 includes an exhaust fan 81, a condensation channel 82 and an exhaust channel 83. One end of the condensation channel 82 is connected to the exhaust port of the exhaust fan 81, and the other end of the condensation channel 82 opens downward and is connected to the first exhaust port 73. When the hot and humid air passes through the condensation channel 82, condensation water is generated on the top wall of the condensation channel 82 and drips into the water cup of the dishwasher.

[0056] The upper end of the exhaust channel 83 is connected to the air outlet of the exhaust fan 81 , and the lower end of the exhaust channel 83 is connected to the second exhaust port 92 . The exhaust channel 83 is serpentine to achieve multi-pass condensation to prevent condensed water from flowing out through the second exhaust port 92 .

[0057] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0058] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0059] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tableware drying air inlet channel, characterized in that: The invention comprises a first air inlet channel (1), a second air inlet channel (2), a third air inlet channel (3) and an air duct switch device (4); one end of the second air inlet channel (2) and the third air inlet channel (3) are connected to the first end of the first air inlet channel (1); the second end of the first air inlet channel (1) is provided with a fan mounting portion (11); the other ends of the second air inlet channel (2) and the third air inlet channel (3) are respectively provided with a first air outlet interface (21) and a second air outlet interface (31); the air duct switch device (4) is arranged at the connection portion of the first air inlet channel (1), the second air inlet channel (2) and the third air inlet channel (3); the air duct switch device (4) is configured to open and close the connection between the second air inlet channel (2) and the first air inlet channel (1), and / or the connection between the third air inlet channel (3) and the first air inlet channel (1).

2. The tableware drying air inlet channel according to claim 1, characterized in that: The air duct switch device (4) comprises an air duct housing (41), a first air door (42), a second air door (43), a first motor (44) and a second motor (45); the air duct housing (41) is provided with a first air duct (411) connected to the second air inlet channel (2) and a second air duct (412) connected to the third air inlet channel (3); the first air door (42) and the second air door (43) are movably mounted on the air duct housing (41) corresponding to the first air duct (411) and the second air duct (412) respectively; The first motor (44) and the second motor (45) are respectively mounted on the air duct housing (41), and the first motor (44) is connected to the first damper (42), and the second motor (45) is connected to the second damper (43). The first motor (44) drives the first damper (42) to separate or connect the first air inlet channel (1) with the second air inlet channel (2), and the second motor (45) drives the second damper (43) to separate or connect the first air inlet channel (1) with the third air inlet channel (3).

3. The tableware drying air inlet channel according to claim 1, characterized in that: The first air inlet channel (1), the second air inlet channel (2) and the third air inlet channel (3) are formed by being enclosed by a first cover body (12) and a second cover body (13), and the first air outlet interface (21) and the second air outlet interface (31) are both located on the second cover body (13).

4. The tableware drying air inlet channel according to claim 1, characterized in that: The second air inlet channel (2) and the third air inlet channel (3) are both in an inverted V shape.

5. The tableware drying air inlet channel according to claim 4, characterized in that: The second air inlet channel (2) and the third air inlet channel (3) are jointly M-shaped.

6. The tableware drying air inlet channel according to claim 1, characterized in that: It also includes a fan (5), the fan mounting portion (11) is surrounded by a mounting cavity that is adapted to the shape of the fan (5), the fan (5) is installed in the mounting cavity of the fan mounting portion (11), and the air outlet of the fan (5) is connected to the first air inlet channel (1), and an air inlet hole (111) is provided on one side of the fan mounting portion (11) corresponding to the air inlet of the fan (5).

7. The tableware drying air inlet channel according to claim 6, characterized in that: It also comprises an airflow heating device (6), which is arranged in the first air inlet channel (1) and located between the fan (5) and the air duct switch device (4).

8. A dishwasher, characterized in that: The invention comprises an electric control board, an inner tank (7), an exhaust device (8) and an air inlet channel for drying dishes according to any one of claims 1 to 7, wherein a first air inlet (71) and a second air inlet (72) are provided on one side of the inner tank (7), a first air exhaust port (73) is provided on the upper end of the inner tank (7), the first air outlet interface (21) and the second air outlet interface (31) are respectively connected to the first air inlet (71) and the second air inlet (72), the exhaust device (8) is connected to the first air exhaust port (73), and the air duct switch device (4) and the exhaust device (8) are respectively electrically connected to the electric control board.

9. The dishwasher according to claim 8, characterized in that It also includes a humidity sensor, which is arranged in the exhaust device (8) and is electrically connected to the electric control board.

10. The dishwasher according to claim 8, characterized in that The first air inlet (71) is located at the front of the inner liner (7), and the second air inlet (72) is located at the rear of the inner liner (7); or the first air inlet (71) is located at the upper part of the inner liner (7), and the second air inlet (72) is located at the lower part of the inner liner (7).

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