CN115868893A

CN115868893A - Dishwasher and drying method of dishwasher

Info

Publication number: CN115868893A
Application number: CN202111168201.9A
Authority: CN
Inventors: 卢家良; 莫建刚
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2023-03-31

Abstract

The invention discloses a dish washing machine and a drying method of the dish washing machine, wherein the dish washing machine comprises an inner container, a spray arm device, a water cup and a fan device, the spray arm device is arranged in the inner container, the spray arm device comprises at least one spray arm, and spray holes are formed in the spray arms; the water cup is communicated with the spray arm through a washing water conveying pipe; the fan device is communicated with the washing water conveying pipe through a drying air conveying pipe, and the drying air conveying pipe is intersected with the washing water conveying pipe; in the drying mode of the dishwasher, the fan device can drive the drying air to flow into the spray arm and spray out from the spray holes of the spray arm. The technical scheme of the invention can effectively remove the residual water on the tableware and dry the washing water delivery pipe, thereby effectively improving the drying effect of the dish washing machine and improving the use experience of users.

Description

Dishwasher and drying method of dishwasher

Technical Field

The invention relates to the technical field of dish-washing machines, in particular to a dish-washing machine and a drying method of the dish-washing machine.

Background

The drying performance of a dishwasher is an important indicator of the dishwasher and is also a key experience point for the user. At present, the dish washer has long drying time and unsatisfactory drying effect, and after the drying is finished, part of tableware still has residual water.

The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.

Disclosure of Invention

The invention mainly aims to provide a dish-washing machine, and aims to solve the technical problem that the drying effect of the dish-washing machine in the prior art is not ideal.

To achieve the above object, the present invention provides a dishwasher, comprising:

an inner container;

the spray arm device is arranged in the liner and comprises at least one spray arm, and spray holes are formed in the spray arm;

the water cup is communicated with the spray arm through a washing water conveying pipe; and

a fan device communicated with the washing water delivery pipe through a drying air delivery pipe, the drying air delivery pipe intersecting the washing water delivery pipe; in the drying mode of the dishwasher, the fan device can drive the drying air to flow into the spray arm and spray out from the spray holes of the spray arm.

In an embodiment, the dishwasher further comprises:

the pumping device is arranged between the intersection of the washing water conveying pipe and the drying air conveying pipe and the water cup; in a drying mode of the dishwasher, the pumping device is activated to pressurize the drying air duct.

In one embodiment, the spray arm device comprises at least two spray arms, and the dishwasher further comprises a control valve disposed at a junction of the washing water delivery pipe and the drying air delivery pipe or between the junction of the washing water delivery pipe and the drying air delivery pipe and the spray arms, for controlling communication between the drying air delivery pipe and the spray arms.

In one embodiment, the control valve is configured to control the drying air in the drying air duct to flow into one of the at least two spray arms.

In one embodiment, the control valve is provided with at least two water diversion ports, and each water diversion port is communicated with one corresponding spray arm through a pipeline.

In an embodiment, the drying air delivery pipe communicates with the washing water delivery pipe between the junction and the water cup when the control valve is closed.

In one embodiment, the fan device comprises a wind wheel and a heating module, and the heating module is located on the air outlet side or the air inlet side of the wind wheel.

In one embodiment, the fan device is provided with an air inlet, and the air inlet is communicated with the inner container;

or the air inlet is communicated with the indoor space.

In one embodiment, the fan device is provided with a first air outlet and a second air outlet, the first air outlet is communicated with the drying air conveying pipe, and the second air outlet is communicated with the inner container;

the dishwasher further comprises a switch, wherein the switch at least has a first switching state and a second switching state, and in the first switching state, the switch opens the first air outlet and closes the second air outlet; and in the second switching state, the switch opens the second air outlet and closes the first air outlet.

In one embodiment, the device further comprises a bypass conveying pipe;

the dishwasher also comprises a change-over switch, the change-over switch is arranged on the drying air conveying pipe, the bypass conveying pipe is respectively connected with the inner container and the change-over switch, the change-over switch at least has a first change-over state and a second change-over state, and in the first change-over state, the change-over switch opens the drying air conveying pipe and closes the bypass conveying pipe so that the drying air enters the inner container through the spray arm device; and in the second switching state, the switch opens the bypass conveying pipe and closes the drying air conveying pipe so that the drying air enters the inner container through the bypass conveying pipe.

In one embodiment, the spray holes are formed in the upper surface and/or the lower surface of the spray arm;

and/or the spray hole is arranged on the side surface of the spray arm;

and/or the spray hole comprises a power hole, so that the spray arm can rotate by spraying water flow or air flow through the power hole.

In one embodiment, the dishwasher further comprises a drain pipe and a drain pump, wherein the drain pipe is connected with the water cup, and the drain pump is arranged on the drain pipe.

In one embodiment, the bowl basket is further included and is arranged in the inner container.

The invention also provides a drying method of the dishwasher, which comprises the following steps:

starting a fan device;

and controlling the dry air to flow into the spray arm and spray from the spray hole of the spray arm.

In an embodiment, before or simultaneously with the step of controlling the drying air to flow into the spray arm and be sprayed out from the spray hole of the spray arm, the method further includes:

and starting a pumping device to pressurize the drying air conveying pipe.

In one embodiment, the number of the spray arms is at least two, and the step of controlling the drying air to flow into the spray arms and to be sprayed out of the spray holes of the spray arms comprises:

controlling dry air to flow into one of the spray arms and spray out from spray holes of the spray arms;

and controlling the dry air to flow into the other spray arm and spray from the spray hole of the spray arm.

In an embodiment, after the step of controlling the dry air to flow into the spray arm and to be sprayed out from the spray hole of the spray arm, the method further includes:

and controlling a control valve of the dish washing machine to be closed so that the drying air flows through the pumping device and the water cup in sequence.

the dry air is controlled to directly flow into the inner container.

In an embodiment, after the step of controlling the dry air to flow into the inner container, the method further includes:

turning off the fan device;

and controlling the drainage pump to drain the water in the water cup.

The dish washing machine comprises an inner container, a spray arm device, a water cup and a fan device, wherein the spray arm device is arranged in the inner container and comprises at least one spray arm, and spray holes are formed in the spray arm; the water cup is communicated with the spray arm through a washing water conveying pipe; the fan device is crossed with the washing water conveying pipe through a drying air conveying pipe; in a drying mode of the dishwasher, the fan device can drive drying air to flow into the spray arm and spray out from the spray holes of the spray arm; so, spray dry wind through the orifice on the spray arm, can get rid of adnexed water droplet on the tableware fast, get rid of the residual water on the tableware completely, simultaneously can also dry washing water conveyer pipe and with washing water raceway connection's relevant part (pumping installations, spray arm lamp), improve the drying effect of dish washer effectively, promote user's use and experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a dishwasher according to the present invention (the arrows shown in the figure indicate the direction of flow of the air stream, the same applies below);

FIG. 2 is a schematic structural view of another embodiment of the dishwasher of the present invention;

FIG. 3 is a schematic view of another embodiment of the dishwasher of the present invention;

FIG. 4 is a schematic view of an embodiment of a spray arm of the dishwasher;

FIG. 5 is a flow chart of an embodiment of a drying method of a dishwasher according to the present invention;

FIG. 6 is a flow chart of another embodiment of a drying method of a dishwasher according to the present invention;

FIG. 7 is a flow chart of a drying method of a dishwasher according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						100	Dish-washing machine	30c	Lower spray arm	62	First air outlet
10	Inner container	31	Spray orifice	63	Second air outlet
						11	Air inlet	40	Water cup	64	Dry air conveying pipe
12	Air outlet	41	Drain pipe	641	Bypass conveying pipe
						20a	Upper bowl basket	42	Water discharge pump	70	Control valve
20b	Lower bowl basket	50	Pumping device	71	At the junction
						30	Spray arm	51	Washing water delivery pipe	80	Change-over switch
30a	Top spray arm	60	Fan device	200	Tableware
						30b	Middle spray arm	61	Air inlet

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a dishwasher.

Referring to fig. 1 and 2, the present invention provides a dishwasher 100, wherein the dishwasher 100 includes a tub 10, a spray arm device, a cup 40, and a blower device 60. The spray arm device is arranged in the inner container 10 and comprises at least one spray arm 30, and spray holes 31 are formed in the spray arm 30; the water cup 40 is communicated with the spray arm 30 through a washing water delivery pipe 51; the fan device 60 is communicated with the washing water delivery pipe 51 through a drying air delivery pipe 64, and the drying air delivery pipe 64 is intersected with the washing water delivery pipe 51; in the drying mode of the dishwasher 100, the fan device 60 may drive the drying air to flow into the spray arm 30 and to be sprayed from the spray holes 31 of the spray arm 30.

The dishwasher 100 further includes a basket installed in the inner container 10 for placing dishes 200, such as bowls and dishes. The number of the bowl baskets can be one, two or more, and is not particularly limited. The spray arm device comprises at least one spray arm 30, the spray arm 30 is rotatably arranged in the inner container 10, and the spray arm 30 can spray water on the tableware 200 placed in the bowl basket to wash the tableware 200. Of course, the spray arm 30 may also be a fixed spray arm, i.e. not rotatable, for directed spray of water. One or more injection holes 31 may be provided, and may be provided according to actual conditions. The spray arm 30 may be disposed above or below the bowl basket, and is not particularly limited. The number of the spray arms 30 is related to the number of the bowl baskets, and may be one, two or more, and the like, and can be selected and designed according to actual use requirements.

The water cup 40 is located below the inner container 10, and is mainly used for integration and is sucked by the pumping device 50 (in the illustration of the present application, the water cup 40 is separated from the inner container 10 to better show the flow of the drying air, and actually the water cup 40 is integrated at the bottom of the inner container 10). The water cup 40 is communicated with the spray arm 30 through a washing water supply pipe 51 such that water in the water cup 40 can be directly supplied into the spray arm 30 through the washing water supply pipe 51. The washing water supply pipe 51 is a passage for supplying washing water, that is, the washing water supply pipe 51 can be regarded as long as the passage can be formed, and is not limited to the conventional tubular structure, for example, if the pumping device 50 is directly connected to the water cup 40, a part of the pumping device 50 for supplying water can be regarded as the washing water supply pipe 51, and the same is true for the drying air supply pipe 64. The dishwasher 100 further includes a pumping device 50, and the pumping device 50 is provided on the washing water delivery pipe 51. Wherein the pumping means 50 may be provided between the intersection 71 of the washing water supply pipe 51 and the drying air supply pipe 64 and the water cup 40. Thus, in the washing mode of the dishwasher 100, the water in the cup 40 is pumped into the washing water delivery pipe 51 by the pumping device 50, delivered to the spray arm 30 through the washing water delivery pipe 51, and finally sprayed out from the spray holes 31 of the spray arm 30 to wash the dishes 200 in the basket. Specifically, the spray arm 30 is provided with a water inlet, with which the washing water supply pipe 51 may be communicated.

In the conventional art, dry air is introduced into the inner container 10, and the dry air carries away the humid air flow of the inner container 10 and discharges the humid air flow to dry the tableware, but the dry air flow cannot dry the water path. In the embodiment of the present invention, the fan device 60 is intersected with the washing water delivery pipe 51 by the drying air delivery pipe 64, so that, in the drying mode of the dishwasher 100, the drying air can be delivered to the spray arm 30 through the drying air delivery pipe 64 and the pipe section of the washing water delivery pipe 51 between the intersection 71 and the spray arm 30, and then is sprayed out from the spray holes 31 of the spray arm 30 to be directly sprayed onto the dishes 200, and for the rotary spray arm 30, the spray arm 30 rotates when spraying the air flow, so as to greatly improve the disturbance performance of the air flow, so that water droplets attached to the dishes 200 can be quickly removed, the residual water on the dishes 200 can be completely removed, and the washing water delivery pipe 51 can be dried, compared with the conventional dishwasher 100 which can not dry the water path only by drying the dishes, the present invention can effectively improve the drying performance and the drying efficiency of the dishwasher 100. It can be understood that the drying mode, i.e. the mode that the dish washer needs to dry the dishes after completing the water spraying washing mode, and the drying air can be either cold air or hot air.

In the embodiment of the present invention, the blower device 60 may also be communicated with the inside of the inner container 10. Specifically, the fan device 60 is provided with an air inlet 61, and the fan device 60 can be communicated with the air inlet 61. In this way, in the drying mode of the dishwasher 100, the drying air is internally circulated by being driven by the fan device 60.

The dishwasher 100 comprises an inner container 10, a spray arm device, a water cup 40 and a fan device 60, wherein the spray arm device is arranged in the inner container 10 and comprises at least one spray arm 30, and the spray arm 30 is provided with at least one spray hole 31; the water cup 40 is communicated with the spray arm 30 through a washing water delivery pipe 51; the fan device 60 is crossed with the washing water delivery pipe 51 through a drying air delivery pipe 64; in the drying mode of the dishwasher 100, the fan device 60 may drive the drying air to flow into the spray arm 30 and to be sprayed out from the spray holes 31 of the spray arm 30; like this, spray dry wind through the orifice 31 on the spray arm 30, can get rid of adnexed water droplet on the tableware 200 fast, get rid of the residual water on the tableware 200 completely, simultaneously can also dry the washing water delivery pipe 51 has improved dishwasher 100's drying effect effectively, promotes user's use and experiences.

In an embodiment, in a drying mode of the dishwasher 100, the pumping device 50 is activated to pressurize the drying air duct 64.

In particular, in a dry mode of the dishwasher 100, the drying air duct 64 may be pressurized by the pumping device 50 being idle. At this time, the pumping device 50 may function as a blower, and may better drive the drying air in the drying air duct 64 to flow into the spray arm 30 and be sprayed out from the spray hole 31 of the spray arm 30. The pumping device 50 may be selected as a washing pump, but is not limited thereto.

Referring to fig. 1 and 2, in one embodiment, the dishwasher 100 includes two baskets, namely an upper basket 20a and a lower basket 20b, the upper basket 20a being located above the lower basket 20 b. In order to better wash the dishes 200 in the dish basket, the spray arm device comprises at least two spray arms 30, and the at least two spray arms 30 can be arranged in the up-and-down direction. The fan unit 60 is communicated with each of the spray arms 30 through the dry air delivery pipe 64, so that the fan unit 60 can drive the dry air to flow into each of the spray arms 30.

In this embodiment, the dishwasher 100 further includes a control valve 70, the control valve 70 is disposed between the intersection 71 of the washing water delivery pipe 51 and the drying air delivery pipe 64 and the spray arm 30, and of course, the control valve 70 may be disposed at the intersection 71 of the washing water delivery pipe 51 and the drying air delivery pipe 64, and the control valve 70 is configured to control the communication between the drying air delivery pipe 64 and the spray arm 30, that is, to open and close the corresponding pipe by controlling the control valve 70, so as to control the corresponding spray arm 30 to spray the air current.

Further, the control valve 70 is used to control the dry air in the dry air duct 64 to flow into one of the at least two spray arms 30 of the spray arm 30.

It is considered that if the drying air in the drying air delivery pipe 64 is equally distributed to each of the spray arms 30, the wind force and the amount of the drying air jetted from each of the spray arms 30 are small, which is not favorable for completely removing the residual water on the dishes 200. Here, the dry air in the dry air duct 64 is controlled to flow into one of the spray arms 30 by the control valve 70, so that the wind power and the wind volume of the dry air sprayed from the spray arm 30 can be increased to effectively dry the residual water on the dishes 200 completely.

Specifically, the control valve 70 is a shunt valve. The control valve 70 comprises a valve seat and a water changing knob, the valve seat is provided with a water inlet and at least two water dividing ports, the water changing knob is rotatably connected with the valve seat, and the water inlet and one of the water dividing ports can be selectively communicated by rotating the water changing knob. It can be understood that the control valve 70 has at least two gears, i.e. a gear and a gear B, and when the water changing knob is rotated to the gear a, the water inlet is communicated with one of the water diversion ports; when the water changing knob is rotated to the B gear, the water inlet is communicated with the other water dividing port. The water diversion openings are arranged in one-to-one correspondence with the spray arms 30, that is, each water diversion opening is communicated with one corresponding spray arm 30 through a pipeline. Thus, the dry air in the dry air delivery pipe 64 can be controlled to flow into one of the spray arms 30 by rotating the water change knob.

Referring to fig. 1 and 2, optionally, the spray arm device includes three spray arms 30, i.e., a top spray arm 30a, a middle spray arm 30b and a lower spray arm 30c, the top spray arm 30a is disposed above the upper bowl basket 20a, the middle spray arm 30b is disposed between the upper bowl basket 20a and the lower bowl basket 20b, and the lower spray arm 30c is disposed below the lower bowl basket 20 b. The top spray arm 30a, the middle spray arm 30b, and the lower spray arm 30c are respectively communicated with three water diversion ports of the control valve 70 through pipes, so that the control valve 70 can control the water in the washing water delivery pipe 51 and the water in the drying air delivery pipe 64 to be diverted into one of the spray arms 30.

For convenience of description, three water dividing ports of the control valve 70 may be defined as a first water dividing port, a second water dividing port, and a third water dividing port, which are respectively communicated with the top spray arm 30a, the middle spray arm 30b, and the lower spray arm 30 c. Accordingly, the control valve 70 has three gears, i.e., a gear, B gear, and C gear. When the water changing knob is rotated to the A gear, the water inlet is communicated with the first water dividing port, and at the moment, the drying air in the drying air conveying pipe 64 can flow into the top spraying arm 30a and is sprayed out from the spray hole 31 of the top spraying arm 30 a; after a period of time, the water changing knob is rotated to the B gear, the water inlet is communicated with a second water dividing port, and at the moment, the drying air in the drying air conveying pipe 64 can flow into the middle spray arm 30B and is sprayed out from the spray hole 31 of the middle spray arm 30B; after a period of time, the water changing knob is rotated to a C gear, and the water inlet is communicated with the third water dividing opening; at this time, the drying air in the drying air duct 64 may flow into the lower spray arm 30c and be sprayed from the spray holes 31 of the lower spray arm 30 c.

Considering that the drying air may be ejected from the ejection holes 31 of the arm 30, there may be various positions of the ejection holes 31, for example, referring to fig. 4, the ejection holes 31 are formed on the upper surface or the lower surface of the arm 30, and/or the ejection holes 31 are formed on the side surface of the arm 30, and/or the ejection holes 31 include power holes (the most peripheral holes shown in fig. 4) so that the arm 30 rotates by ejecting water or air through the power holes. The power holes are typically angled with respect to the spray arm 30 such that the spray arm 30 is free to rotate under the action of the jet/water stream as the water/dry air is ejected from the spray holes 31 of the spray arm 30. By driving the spray arm 30 to rotate, the spray arm 30 can spray dry air to a plurality of directions, and then spray the dry air to the tableware 200 from a plurality of angles, so that residual water on the tableware 200 can be removed more thoroughly, and more effective drying is achieved.

Referring to fig. 2, when the control valve 70 is closed, the drying air delivery pipe 64 communicates with the washing water delivery pipe 51 between the junction 71 and the water cup 40. Thus, when the control valve 70 is closed, since there is a space between the impeller and the impeller housing in the pumping device 50, the dry air may sequentially flow through the pumping device 50 and the water cup 40, so that the residual water in the washing water delivery pipe 51 and the pumping device 50 may be completely removed, the washing water delivery pipe 51 and the pumping device 50 may be completely dried, and the generation of bacteria and generation of odor may be effectively prevented.

There are various configurations of the fan device 60, for example, the fan device 60 includes a fan housing and a wind wheel disposed within the fan housing. The fan shell is provided with an air inlet 61 and an air outlet, and the wind wheel is used for driving dry air to flow into the fan shell from the air inlet 61 and blow out from the air outlet. In an embodiment, the fan device 60 further includes a heating module, and the heating module is disposed in the fan housing and located on the air outlet side or the air inlet side of the wind wheel. Here, the air outlet side of the wind wheel refers to a side of the wind wheel close to the air outlet, and the air inlet side of the wind wheel refers to a side of the wind wheel close to the air inlet.

In this embodiment, the heating module is mainly used for heating the drying air flowing through the wind wheel, so that the drying air blown out from the air outlet of the fan casing is hot air. In the drying mode of the dishwasher 100, the hot air blown by the fan device 60 is delivered into the spray arm 30 through the dry air delivery pipe 64 and is sprayed from the spray holes 31 of the spray arm 30, so that the dishware 200 in the dish basket can be dried more quickly and sufficiently by the hot air, thereby improving the drying efficiency and the drying performance of the dishwasher 100. The heating module may include a heating tube, a heating sheet, a PTC heating element, or the like, and is not particularly limited.

Referring to fig. 1 and 2, in an embodiment, the air inlet 61 is communicated with the inner container 10. Specifically, the air inlet 61 is connected to communicate with the air outlet 12 of the inner tub 10, so that air can be circulated in the dishwasher 100. Of course, in other embodiments, the air inlet 61 may also be directly communicated with the indoor space.

Referring to fig. 1 and 2, in an embodiment, the air outlets include a first air outlet 62 and a second air outlet 63, the first air outlet 62 is communicated with the drying air duct 64, and the second air outlet 63 is communicated with the liner 10. The dishwasher 100 further comprises a switch 80, the switch 80 having at least a first switching state and a second switching state, in the first switching state, the switch 80 opens the first air outlet 62 and closes the second air outlet 63; in the second switching state, the switch 80 opens the second air outlet 63 and closes the first air outlet 62.

It should be noted that, in the first switching state, the first air outlet 62 is opened and the second air outlet 63 is closed, and at this time, the drying air in the fan device 60 can flow into the drying air delivery pipe 64 through the first air outlet 62, and further be delivered into the spray arm 30 or the washing water delivery pipe 51 through the drying air delivery pipe 64, so as to dry the dishes 200 in the inner container 10 and dry the washing water delivery pipe 51 and the pumping device 50. In the second switching state, the second air outlet 63 is opened and the first air outlet 62 is closed, and at this time, the drying air in the blower device 60 can flow into the inner container 10 through the second air outlet 63, so as to dry the tableware 200 in the inner container 10.

It should be noted that, the first switching state is first switched by the switch, so that the dry air flows into the spray arm 30 through the dry air delivery pipe 64, and is sprayed from the spray holes 31 of the spray arm 30 to the tableware 200 to dry the tableware 200; then, the switch is switched to the second switching state, so that the drying air flows into the inner container 10 to dry the tableware 200 again, thereby effectively preventing the drying air from flowing into the inner container 10 to dry the tableware 200, and then introducing the drying air into the drying air delivery pipe 64 to bring out moist air to affect the drying effect of the tableware. In addition, the dry air is directly input into the inner container 10, so that the wind resistance and the noise are reduced, and particularly for hot air, the heat loss caused by the extension of a conveying pipeline is avoided.

In an embodiment, another switching form is provided, as shown in fig. 3, the dishwasher 100 further includes a bypass duct 641;

the dishwasher 100 further includes a switch 80, the switch 80 is disposed on the dry air delivery pipe 64, the bypass delivery pipe 641 is respectively connected to the inner container 10 and the switch 80, the switch 80 has at least a first switching state and a second switching state, in the first switching state, the switch 80 opens the dry air delivery pipe 64 and closes the bypass delivery pipe 641 to allow dry air to enter the inner container 10 through the spray arm device; in the second switching state, the switch 80 opens the bypass duct 641 and closes the dry air duct 64 so that the dry air enters the inner container 10 through the bypass duct 641.

In the present embodiment, the switch 80 is disposed on the dry air delivery pipe 64, for example, the switch 80 is disposed at a position of 1/2, 1/3, 1/4, etc. of the length of the dry air delivery pipe 64, and the bypass delivery pipe 641 is connected to the switch 80, so that the blower device 60 can be provided with only one outlet and can also adjust the flow direction of the dry air. In the second switching state, the switch 80 turns off the drying air delivery pipe 64, i.e., the drying air does not flow out from the drying air delivery pipe 64 any more, but the drying air can still be delivered at a portion of the drying air delivery pipe 64, e.g., the drying air is delivered to the bypass delivery pipe 64 through the partial drying air delivery pipe 64 upstream of the switch 80.

In one embodiment, the second air outlet 63 is communicated with the air inlet 11 of the inner container 10. The air inlet 11 and the air outlet 12 of the inner container 10 are arranged on the same side wall of the inner container 10, and the air inlet 11 is positioned below the air outlet 12. This can reduce the number of running pipes and simplify the connection structure of the fan unit 60 and the inner container 10.

Referring to fig. 1 and 2, the dishwasher 100 further includes a drain assembly for draining water in the cup 40. Specifically, the drainage assembly includes a drainage pipe 41 and a drainage pump 42, the drainage pipe 41 is connected to the water cup 40, and the drainage pump 42 is disposed on the drainage pipe 41 for driving the water in the water cup 40 to be drained from the drainage pipe 41.

The present invention also provides a drying method of the dishwasher 100, and the detailed structure of the dishwasher 100 refers to the above-mentioned embodiment. Since the dishwasher 100 adopts all the technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also achieved, and no further description is given here.

Referring to fig. 5, in one embodiment, the drying method of the dishwasher 100 includes the following steps:

step S10, starting the fan device 60;

in step S20, the dry air is controlled to flow into the spray arm 30 through the dry air delivery pipe 64 and to be sprayed from the spray hole 31 of the spray arm 30.

The dishwasher 100 includes an inner container 10, a spray arm device, a blower device 60, a cup 40, and a pumping device 50. The spray arm device is arranged in the inner container 10 and comprises at least one spray arm 30, and a plurality of spray holes 31 are formed in the spray arm 30; the water cup 40 is communicated with the spray arm 30 through a washing water delivery pipe 51; the pumping means 50 is provided between the intersection 71 of the washing water delivery pipe 51 and the drying air delivery pipe 64 and the water cup 40; the fan unit 60 is joined to the washing water supply pipe 51 through a drying air supply pipe 64.

In the washing mode of the dishwasher 100, the pumping device 50 is activated, and the pumping device 50 pumps water in the water cup 40 into the washing water delivery pipe 51, then delivers the water to the spray arm 30 through the washing water delivery pipe 51, and finally sprays the water from the spray holes 31 of the spray arm 30 to clean the dishes 200 in the dish basket. In the drying mode of the dishwasher 100, the fan device 60 is activated, and at this time, the fan device 60 drives the drying air to be delivered to the spray arm 30 through the drying air delivery pipe 64 and the pipe section of the washing water delivery pipe 51 between the intersection 71 and the spray arm 30, and to be sprayed from the spray holes 31 of the spray arm 30 to the dishes 200, so that the water drops attached to the dishes 200 can be rapidly removed, and the residual water on the dishes 200 can be completely removed, and at the same time, the washing water delivery pipe 51 can effectively improve the drying performance and the drying efficiency of the dishwasher 100. The drying air may be cold air, or may be hot air to achieve a better drying effect, and is not particularly limited.

In an embodiment, before the step S20, the method further includes:

in step S30, the pumping device 50 is activated to pressurize the drying air duct 64.

In particular, the pumping device 50 may be selected as a washing pump. When the water cup 40 is also intersected with the drying air delivery pipe 64 through the washing water delivery pipe 51, the drying air delivery pipe 64 can be pressurized by idling the pumping device 50 after the pumping device 50 is started. At this time, the pumping device 50 may function as a blower, and may better drive the drying air in the drying air duct 64 to flow into the spray arm 30 and be sprayed out from the spray hole 31 of the spray arm 30.

In an embodiment, the number of the spray arms 30 is at least two, and at least two spray arms 30 may be arranged in an up-and-down direction. The fan unit 60 is in communication with each of the spray arms 30 such that the fan unit 60 drives the drying air into each of the spray arms 30.

Referring to fig. 6, the step S20 includes:

step S21, controlling the dry air to flow into one of the spray arms 30 through the dry air delivery pipe 64 and to be sprayed out from the spray holes 31 of the spray arms 30;

in step S22, the dry air is controlled to flow into the other spray arm 30 through the dry air delivery pipe 64 and to be sprayed from the spray holes 31 of the spray arm 30.

It is considered that if the drying air in the drying air delivery pipe 64 is equally distributed to each of the spray arms 30, the wind force and the amount of the drying air jetted from each of the spray arms 30 are small, which is not favorable for completely removing the residual water on the dishes 200. Here, the control valve 70 is provided between the intersection 71 of the washing water supply pipe 51 and the drying air supply pipe 64 and the spray arms 30, so that the drying air in the drying air supply pipe 64 is controlled to sequentially flow into each of the spray arms 30 by the control valve 70, which can increase the wind power and the wind volume of the drying air sprayed from each of the spray arms 30 to effectively dry the residual water on the dishes 200 completely.

Optionally, the step S21 includes:

in step S211, the drying air is controlled to flow into one of the spray arms 30 through the drying air delivery pipe 64 and to be sprayed out from the spray holes 31 of the spray arm 30 within a first preset time. The first preset time can be selected and set according to the actual use condition, for example, the first preset time can be 5min, 6min, 7min, and the like.

The step S22 may include:

in step S221, the drying air is controlled to flow into the other spray arm 30 through the drying air delivery pipe 64 and to be sprayed out from the spray hole 31 of the spray arm 30 within the second preset time. The second preset time can be selected and set according to the actual use condition, and for example, the second preset time can be 5min, 6min, 7min, and the like. Optionally, the second preset time is equal to the first preset time, and certainly, the second preset time may also be unequal to the first preset time, which is not specifically limited.

If the number of the spray arms 30 is three, namely a top spray arm 30a, a middle spray arm 30b and a lower spray arm 30c, the top spray arm 30a is arranged above the upper bowl basket 20a, the middle spray arm 30b is arranged between the upper bowl basket 20a and the lower bowl basket 20b, and the lower spray arm 30c is arranged below the lower bowl basket 20 b. The top spray arm 30a, the middle spray arm 30b, and the lower spray arm 30c are respectively communicated with three water dividing ports (a first water dividing port, a second water dividing port, and a third water dividing port) of the control valve 70. Said step S20 comprises:

step S23, controlling the dry air to flow into the top spray arm 30a through the dry air delivery pipe 64 and to be sprayed out from the spray hole 31 of the top spray arm 30 a;

step S24, controlling the dry air to flow into the middle spray arm 30b through the dry air delivery pipe 64 and to be sprayed out from the spray holes 31 of the middle spray arm 30 b;

in step S25, the dry air is controlled to flow into the lower spray arm 30c through the dry air delivery pipe 64 and to be sprayed from the spray holes 31 of the lower spray arm 30 c.

It should be noted that, the sequence of step 23, step 24, and step 25 is not sequential, and may be selected and designed according to actual use requirements.

In an embodiment, after the step 20, the method further includes:

and step 40, controlling the drying air to sequentially flow through the pumping device 50 and the water cup 40.

Specifically, when the control valve 70 is closed, the drying air delivery pipe 64 communicates with the washing water delivery pipe 51 between the junction 71 and the water cup 40. Thus, when the control valve 70 is closed, the dry air can sequentially flow through the pumping device 50 and the water cup 40, so that the residual water in the washing water delivery pipe 51 and the pumping device 50 can be completely removed, the washing water delivery pipe 51 and the pumping device 50 can be completely dried, and bacteria breeding and peculiar smell generation can be effectively avoided.

In an embodiment, before the step 20, the method further includes:

step 50, controlling the switch 80 to switch to the first switching state, so that the first air outlet 62 of the fan device 60 is communicated with the drying air conveying pipe 64.

Specifically, the air outlet of the fan device 60 includes a first air outlet 62 and a second air outlet 63, the first air outlet 62 is communicated with the drying air delivery pipe 64, and the second air outlet 63 is communicated with the inner container 10. The dishwasher 100 further comprises a switch 80, the switch 80 having a first switching state and a second switching state. In the first switching state, the switch 80 opens the first air outlet 62 and closes the second air outlet 63, and at this time, the drying air in the fan device 60 can flow into the drying air delivery pipe 64 through the first air outlet 62, and further delivered into the spray arm 30 or the washing water delivery pipe 51 through the drying air delivery pipe 64, so as to dry the dishes 200 in the inner container 10 and dry the washing water delivery pipe 51 and the pumping device 50.

Referring to fig. 7, in an embodiment, after the step 20, the method further includes:

and step 60, controlling the dry air to directly flow into the inner container 10.

It should be noted that, the drying air is firstly made to flow into the spray arm 30 through the drying air delivery pipe 64, and is sprayed onto the tableware 200 from the spray hole 31 of the spray arm 30 to dry the tableware 200; then, the drying air flows into the inner container 10 to dry the tableware 200 again, so that the drying effect of the tableware can be effectively prevented from being influenced by the fact that the drying air flows into the inner container 10 to dry the tableware 200 and then flows into the drying air conveying pipe 64 to bring out damp air. Here, the dry air duct 64 is directly connected to the inner container 10, and the dry air is directly supplied to the inner container 10 through the dry air duct 64.

Wherein, before the step 60, the method further comprises:

and 70, controlling the switch 80 to switch to a second switching state so as to communicate the second air outlet 63 of the fan device 60 with the inner container 10.

In the second switching state, the second air outlet 63 is opened and the first air outlet 62 is closed, and at this time, the drying air in the blower device 60 can flow into the inner container 10 through the second air outlet 63, so as to dry the tableware 200 in the inner container 10.

Referring to fig. 7, in an embodiment, after the step 50, the method further includes:

step 80, turning off the fan device 60;

and step 90, controlling the drainage pump 42 to drain water in the water cup 40.

Specifically, the dishwasher 100 further includes a drain assembly to drain water in the cup 40. The drainage assembly includes a drainage pipe 41 and a drainage pump 42, the drainage pipe 41 is connected to the water cup 40, and the drainage pump 42 is disposed on the drainage pipe 41 for driving the water in the water cup 40 to drain out from the drainage pipe 41.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A dishwasher, comprising:

an inner container;

the spray arm device is arranged in the inner container and comprises at least one spray arm, and spray holes are formed in the spray arm;

the fan device is communicated with the washing water conveying pipe through a drying air conveying pipe, and the drying air conveying pipe is intersected with the washing water conveying pipe; in the drying mode of the dishwasher, the fan device can drive drying air to flow into the spray arm and spray out from the spray holes of the spray arm.

2. The dishwasher of claim 1, further comprising:

3. The dishwasher of claim 1, wherein the spray arm arrangement comprises at least two spray arms, the dishwasher further comprising a control valve provided at or between the intersection of the wash water delivery duct and the drying air delivery duct and the spray arms for controlling the communication of the drying air delivery duct with the spray arms.

4. A dishwasher according to claim 3, characterized in that the control valve is arranged to control the drying air in the drying air duct to flow into one of the at least two spray arms.

5. The dishwasher of claim 3, wherein the control valve is provided with at least two cutwater ports, each of the cutwater ports communicating with a corresponding one of the spray arms through a pipe.

6. A dishwasher according to claim 3, wherein the drying air duct communicates with the washing water duct between the junction and the water cup when the control valve is closed.

7. The dishwasher of claim 1, wherein the fan device comprises a wind wheel and a heating module, the heating module being located on an air outlet side or an air inlet side of the wind wheel.

8. The dishwasher of claim 1, wherein the fan device has an air inlet, the air inlet being in communication with the inner tub;

or the air inlet is communicated with the indoor space.

9. The dishwasher of claim 1, wherein the fan device has a first air outlet and a second air outlet, the first air outlet is communicated with the drying air delivery pipe, and the second air outlet is communicated with the inner container;

10. The dishwasher of claim 1, further comprising a bypass duct;

11. The dishwasher according to any one of claims 1 to 10, wherein the spray holes are provided at an upper surface and/or a lower surface of the spray arm;

and/or the spray hole is arranged on the side surface of the spray arm;

12. The dishwasher according to any one of claims 1 to 10, further comprising a drain pipe connected to the water cup and a drain pump provided on the drain pipe.

13. The dishwasher of claim 1, further comprising a basket disposed within the inner container.

14. A drying method of a dishwasher according to any one of claims 1 to 13, comprising the steps of:

starting a fan device;

and controlling the dry air to flow into the spray arm and spray from a spray hole of the spray arm.

15. The drying method of a dishwasher according to claim 14, wherein the step of controlling the drying air to flow into the spray arm and to be sprayed from the spray holes of the spray arm is preceded by or performed simultaneously with the step of:

and starting a pumping device to pressurize the drying air delivery pipe.

16. The drying method of a dishwasher according to claim 14, wherein the number of the spray arms is at least two, and the step of controlling the drying wind to flow into the spray arms and to be sprayed from the spray holes of the spray arms comprises:

controlling the drying air to flow into one of the spray arms and spray from the spray holes of the spray arms;

17. The drying method of a dishwasher according to claim 14, wherein the step of controlling the drying air to flow into the spray arm and to be sprayed from the spray holes of the spray arm is followed by further comprising:

18. The drying method of a dishwasher according to claim 14, wherein the step of controlling the drying air to flow into the spray arm and to be sprayed from the spray holes of the spray arm is followed by further comprising:

the dry air is controlled to directly flow into the inner container.

19. The drying method of a dishwasher according to claim 18, further comprising, after the step of controlling the flow of the drying air into the inner tub:

closing the fan device;

and controlling the drainage pump to drain the water in the water cup.