Air path circulating device and dish washing machine

Abstract

The invention relates to an air path circulating device and a dish washing machine. The air path circulating device is applied to the dish-washing machine and comprises an air path circulating mechanism, a first pipeline, a blowing head mechanism and a second pipeline which are communicated in sequence, the air path circulating mechanism is located at the top end of the dish-washing machine and comprises a fan and a heater; the blowing head mechanism is located in a cavity of the dish-washing machine, and the blowing head mechanism communicates with the cavity of the dish-washing machine; the first pipeline comprises a first air inlet and a first air outlet, and the second pipeline comprises a second air inlet and a second air outlet; the first air inlet and the second air outlet communicate with the left end and the right end of the air path circulating mechanism correspondingly, and the first air outlet and the second air inlet communicate with the left end and the right end of the blowing head mechanism correspondingly. According to the dish-washing machine, the inner space of the dish-washing machine is reasonably utilized, the air path circulating mechanism is arranged at the top end of the dish-washing machine, and the blowing head mechanism is installed in the cavity of the dish-washing machine, so that the purpose of circularly utilizing air in the cavity to dry tableware is achieved, and the overall size of the dish-washing machine is prevented from being too large.

Description

Technical Field

[0001] The present invention belongs to the field of dishwashers, and particularly relates to an air duct circulation device and a dishwasher. Background Art

[0002] As a modern kitchen appliance, the main function of a dishwasher is to automatically complete the cleaning of tableware, thereby greatly improving the working efficiency of a household or commercial kitchen and reducing the burden of manual tableware cleaning. Timely drying of tableware after the cleaning work is also an important task of the dishwasher. This task not only helps with the storage and use of tableware, but also effectively avoids the growth of bacteria on tableware in a humid environment and reduces the risk of secondary contamination.

[0003] Existing dishwashers generally add a forced drying function. By introducing an air duct structure and a heating function, fresh, dry, and hot air is introduced into the washing chamber, and hot air is blown onto the tableware to accelerate the air drying of the tableware and reduce the washing and drying cycles. However, the introduction of a heating device and a complex air duct structure will cause the overall volume of the dishwasher to be relatively large. Summary of the Invention

[0004] To solve the above technical problems, the present application provides an air duct circulation device and a dishwasher.

[0005] In a first aspect, an embodiment of the present application discloses an air duct circulation device applied to a dishwasher, including an air duct circulation mechanism, a first pipe, a blowing head mechanism, and a second pipe that are sequentially connected;

[0006] The air duct circulation mechanism is located at the top of the dishwasher, and the air duct circulation mechanism includes a blower and a heater; the blowing head mechanism is located in the chamber of the dishwasher, and the blowing head mechanism is in communication with the chamber of the dishwasher;

[0007] The first pipe includes a first air inlet and a first air outlet, and the second pipe includes a second air inlet and a second air outlet; the first air inlet and the second air outlet are respectively connected to the left and right ends of the air duct circulation mechanism, and the first air outlet and the second air inlet are respectively connected to the left and right ends of the blowing head mechanism.

[0008] In some possible embodiments,

[0009] The blowing head mechanism includes a fixed bracket; the fixed bracket is connected to the inner surface of the chamber of the dishwasher;

[0010] A plurality of blowing heads that are arranged side by side and communicate with each other are provided on the fixed bracket; each blowing head is in communication with the chamber of the dishwasher.

[0011] In some possible embodiments,

[0012] A plurality of exhaust holes are provided on both the upper surface and the lower surface of each blowing head.

[0013] In some possible embodiments,

[0014] The fixed bracket includes a fixed base; the fixed base is in contact connection with the inner surface of the cavity of the dishwasher, and the left and right ends of the fixed base are respectively communicated with the first air outlet and the second air inlet;

[0015] A plurality of first fixed shells are arranged side by side on the upper surface of the fixed base, and a first opening is arranged on the upper surface of each first fixed shell; a plurality of second fixed shells are arranged side by side on the lower surface of the fixed base, and a second opening is arranged on the lower surface of each second fixed shell;

[0016] Each first fixed shell and each second fixed shell are arranged opposite to each other and communicate with each other to form each blowing head.

[0017] In some possible embodiments,

[0018] The blowing head mechanism includes an upper cover plate and a lower cover plate;

[0019] Both the upper cover plate and the lower cover plate are connected to the fixed bracket, and the upper cover plate and the lower cover plate are respectively located above and below a plurality of blowing heads; the upper cover plate or the lower cover plate is used to block the upper surface or the lower surface of a plurality of blowing heads.

[0020] In some possible embodiments,

[0021] The air path circulation device further includes a first gas one-way valve and a second gas one-way valve;

[0022] The first gas one-way valve is located in the first pipeline; the first gas one-way valve is used to restrict the gas flow direction in the first pipeline to prevent the gas from flowing back from the blowing head mechanism to the air path circulation mechanism through the first pipeline;

[0023] The second gas one-way valve is located in the second pipeline; the second gas one-way valve is used to restrict the gas flow direction in the second pipeline to prevent the gas from flowing back from the air path circulation mechanism to the blowing head mechanism through the second pipeline.

[0024] In some possible embodiments,

[0025] The air path circulation mechanism includes a protective housing; a blower and a heater are located inside the protective housing;

[0026] A first air inlet hole is arranged on the upper surface of the protective housing, and the first air inlet hole is communicated with the external environment; a second air inlet hole is arranged on the lower surface of the protective housing, and the second air inlet hole is communicated with the cavity of the dishwasher;

[0027] A baffle and a driving motor are arranged beside the first air inlet hole, and the driving motor is connected to the baffle; the driving motor is used to drive the baffle to cover or open the first air inlet hole.

[0028] In some possible embodiments,

[0029] The air path circulation device includes a controller;

[0030] A gas flow meter is arranged in the first pipeline, and the gas flow meter is electrically connected to the controller;

[0031] The controller is used to control the driving motor to drive the baffle to open the first air inlet hole when the measured value of the gas flow meter is lower than the preset flow value.

[0032] In some possible embodiments,

[0033] A temperature measuring instrument is arranged in the first pipeline, and the temperature measuring instrument is electrically connected to the controller;

[0034] The controller is used to control the heater to start the heating mode when the measured value of the temperature measuring instrument is lower than the preset temperature value.

[0035] In a second aspect, an embodiment of the present application discloses a dishwasher, including the air path circulation device of any one of the above.

[0036] The technical solution provided by the embodiment of the present application has the following technical effects:

[0037] The air path circulation device of the embodiment of the present application is applied to a dishwasher and includes an air path circulation mechanism, a first pipeline, a blowing head mechanism, and a second pipeline that are connected in sequence; the air path circulation mechanism is located at the top of the dishwasher, and the air path circulation mechanism includes a fan and a heater; the blowing head mechanism is located in the chamber of the dishwasher, and the blowing head mechanism is communicated with the chamber of the dishwasher; the first pipeline includes a first air inlet and a first air outlet, and the second pipeline includes a second air inlet and a second air outlet; the first air inlet and the second air outlet are respectively communicated with the left and right ends of the air path circulation mechanism, and the first air outlet and the second air inlet are respectively communicated with the left and right ends of the blowing head mechanism. In the embodiment of the present application, by reasonably utilizing the internal space of the dishwasher, an air path circulation mechanism is arranged at the top of the dishwasher and a blowing head mechanism is installed in the chamber of the dishwasher, so as to achieve the purpose of recycling the air in the chamber to dry the tableware, and avoid the overall volume of the dishwasher from being too large. Description of the Drawings

[0038] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 It is a schematic diagram of an air path circulation device located in a dishwasher provided by an embodiment of the present application Figure 1 ;

[0040] Figure 2 It is a schematic diagram of an air duct circulation device provided in an embodiment of the present application and located in a dishwasher Figure 2 ;

[0041] Figure 3 It is a schematic diagram of an air duct circulation device provided in an embodiment of the present application and located in a dishwasher Figure 3 ;

[0042] Figure 4 It is a schematic cross-sectional view of a blowing head mechanism provided in an embodiment of the present application;

[0043] Figure 5 It is a schematic diagram of a dishwasher provided in an embodiment of the present application. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0045] It should be noted that the "one embodiment" or "embodiment" in the specification of the embodiments of the present application refers to specific features, structures or characteristics that can be included in at least one implementation manner of the present application. It should be understood that in the specification, claims and the above-mentioned drawings of the embodiments of the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application 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, and therefore should not be construed as a limitation to the present application. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, in the description of this embodiment, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system or product that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0046] It should be understood that when a device or component is referred to as being "on", "adjacent to", "connected to" another device or component, it can be directly on, adjacent to, or connected to the other device or component, or there may be intervening devices or components. In contrast, when a device or component is referred to as being "directly on", "directly adjacent to", "directly connected to" another device or component, there are no intervening devices or components. It should be understood that although terms such as first, second, third, etc. may be used to describe various components, regions, layers, and / or parts, these components, regions, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one component, region, layer, or part from another component, region, layer, or part. Thus, without departing from the teachings of the present application, the first component, region, layer, or part discussed below may be referred to as the second component, region, layer, or part. And when discussing the second component, region, layer, or part, it does not necessarily mean that the present application necessarily has a first component, region, layer, or part.

[0047] To make the objectives, technical solutions, and advantages of the embodiments disclosed in this application clearer and more understandable, the following further details the embodiments of this application in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for explaining the embodiments of this application and are not intended to limit the embodiments of this application.

[0048] This application provides an air duct circulation device. This air duct circulation device is applied to a dishwasher, and the air duct circulation device dries tableware by recycling the air in the dishwasher chamber.

[0049] Figure 1 is a schematic diagram of an air duct circulation device located in a dishwasher provided by an embodiment of this application Figure 1 , such as Figure 1 shown, the air duct circulation device includes an air duct circulation mechanism 1, a first duct 2, a blowing head mechanism 3, and a second duct 4 that are connected in sequence (due to the perspective problem, Figure 1 the second duct 4 is not highlighted). The air duct circulation mechanism 1 is located at the top of the dishwasher, and the air duct circulation mechanism 1 includes a blower and a heater. The blowing head mechanism 3 is located in the dishwasher chamber, and the blowing head mechanism 3 is in communication with the dishwasher chamber. The first duct 2 includes a first air inlet and a first air outlet, the second duct includes a second air inlet and a second air outlet, the first air inlet and the second air outlet are respectively connected to the left and right ends of the air duct circulation mechanism 1, and the first air outlet and the second air inlet are respectively connected to the left and right ends of the blowing head mechanism 3.

[0050] In the embodiments of this application, by reasonably utilizing the internal space of the dishwasher, the air duct circulation mechanism 1 is arranged at the top of the dishwasher and the blowing head mechanism 3 is installed in the dishwasher chamber, so as to achieve the purpose of recycling the air in the chamber to dry the tableware and avoid the overall volume of the dishwasher from being too large.

[0051] In the embodiments of this application, the air heated by the heater in the air duct circulation mechanism 1 flows towards the blowing head mechanism 3 through the first duct 2, and flows from the blowing head mechanism 3 through the second duct 4 towards the air duct circulation mechanism 1. The air flowing into the air duct circulation mechanism 1 will be heated by the heater again and flow along the air duct circulation mechanism 1, the first duct 2, the blowing head mechanism 3, and the second duct 4. The hot air circulates in the air duct circulation device composed of the air duct circulation mechanism 1, the first duct 2, the blowing head mechanism 3, and the second duct 4 until the set working time is reached or the user manually operates to stop the air duct circulation device.

[0052] Figure 2 is a schematic diagram of an air duct circulation device located in a dishwasher provided by an embodiment of this application Figure 2 , such as Figure 2As shown, two tableware baskets 5 are placed vertically in the chamber of the dishwasher. A blowing head mechanism 3 is installed between the upper tableware basket 5 and the lower tableware basket 5, and the blowing head mechanism 3 is in a communicating state with both the upper tableware basket 5 and the lower tableware basket 5. When the hot air heated by the air path circulation mechanism 1 flows into the blowing head mechanism 3, the hot air flows from the blowing head mechanism 3 into the two tableware baskets 5, thereby drying the tableware placed in the two tableware baskets 5.

[0053] In the embodiment of the present application, by installing the blowing head mechanism 3 between the upper tableware basket 5 and the lower tableware basket 5, the internal space of the dishwasher is reasonably utilized to install the blowing head mechanism 3, without the need to additionally increase the space for placing the blowing head mechanism 3 in the dishwasher, which helps to reduce the overall volume of the dishwasher. Moreover, by adjusting the volume of the blowing head mechanism 3 according to the space size between the upper tableware basket 5 and the lower tableware basket 5 in the chamber of the dishwasher, the blowing head mechanism 3 can be adapted to the chambers of different models of dishwashers.

[0054] Figure 3 is a schematic diagram of an air path circulation device located in a dishwasher provided by an embodiment of the present application Figure 3 , Figure 4 is a cross-sectional schematic diagram of a blowing head mechanism provided by an embodiment of the present application. As Figure 3 and Figure 4 shown, the blowing head mechanism 3 includes a fixed bracket 31. The fixed bracket 31 is connected to the inner surface of the chamber of the dishwasher. A plurality of blowing heads 32 arranged in parallel and communicating with each other are provided on the fixed bracket 31, and each blowing head 32 is in communication with the chamber of the dishwasher. The hot air flows from the first air outlet of the first pipe 2 into the blowing head mechanism 3, passes through each blowing head 32 in the blowing head mechanism 3 in sequence, and flows to the second air inlet of the second pipe 4. When the hot air flows to each blowing head 32, the hot air flows from the blowing head 32 to the upper tableware basket 5 and the lower tableware basket 5 in the chamber of the dishwasher, thereby drying the tableware in the tableware basket 5.

[0055] In the embodiment of the present application, as Figure 3 and Figure 4 shown, the fixed bracket 31 includes a fixed base. The fixed base 311 is in contact connection with the inner surface of the chamber of the dishwasher, and the left and right ends of the fixed base 311 are respectively in communication with the first air outlet of the first pipe 2 and the second air inlet of the second pipe 4. The inside of the fixed base 311 is a cavity. The hot air flows from the first air outlet of the first pipe 2 to the left end of the fixed base 311 and flows from left to right in the internal cavity of the fixed base 311, and flows to the second air inlet of the second pipe 4.

[0056] In the embodiment of the present application, as Figure 4As shown, a plurality of first fixing cases 321 are arranged side by side on the upper surface of the fixed base 311, and a first opening is provided on the upper surface of each first fixing case 321. An opening is provided on the upper surface of the fixed base 311 corresponding to the first opening, so that the first fixing case 321 communicates with the cavity inside the fixed base 311. A plurality of second fixing cases 322 are arranged side by side on the lower surface of the fixed base 311, and a second opening is provided on the lower surface of each second fixing case 322. An opening is provided on the lower surface of the fixed base 311 corresponding to the second opening, so that the second fixing case 322 communicates with the cavity inside the fixed base 311. Each first fixing case 321 and each second fixing case 322 are arranged opposite to each other and communicate with each other to form each blowing head 32. When hot air flows to each blowing head 32, the hot air flows through the first opening of the first fixing case 321 to the upper tableware basket 5 in the dishwasher chamber, and the hot air flows through the second opening of the second fixing case 322 to the lower tableware basket 5 in the dishwasher chamber, thereby air-drying the tableware in the tableware basket 5.

[0057] In some possible embodiments, a plurality of exhaust holes are provided on both the upper surface and the lower surface of each blowing head 32. When hot air flows to each blowing head 32, the hot air flows through the exhaust holes to the upper tableware basket 5 and the lower tableware basket 5 in the dishwasher chamber, thereby air-drying the tableware in the tableware basket 5.

[0058] In some possible embodiments, the blowing head mechanism 3 includes an upper cover plate and a lower cover plate. Both the upper cover plate and the lower cover plate are connected to the fixed bracket 31, and the upper cover plate and the lower cover plate are respectively located above and below a plurality of blowing heads 32. The upper cover plate or the lower cover plate is used to block the upper surface or the lower surface of a plurality of blowing heads 32.

[0059] When the air path circulation device is not in a working state, by using the upper cover plate and the lower cover plate to block the upper surface and the lower surface of a plurality of blowing heads 32, tap water during the washing process can be prevented from entering the blowing head mechanism 3, thereby avoiding an increase in the workload of the air path circulation device when it is in a working state.

[0060] When the air path circulation device is in a working state, if there is only one tableware basket 5 in the dishwasher chamber containing tableware that needs to be air-dried, the upper cover plate or the lower cover plate can be used to block the upper surface or the lower surface of a plurality of blowing heads 32, so that the hot air only blows from the lower surface of the blowing head 32 to the lower tableware basket 5 or only blows from the upper surface of the blowing head 32 to the upper tableware basket 5. Such an operation can make the hot air flow concentratedly to the tableware basket 5 that needs to be air-dried, can improve the utilization rate of the hot air, and helps to improve the air-drying efficiency of the air path circulation device.

[0061] In some possible embodiments, the upper cover plate or the lower cover plate is a telescopic cover plate. By controlling the telescoping of the upper cover plate or the lower cover plate, the upper cover plate or the lower cover plate can be retracted to avoid blocking the upper surface or the lower surface of the blow head 32, or the upper cover plate or the lower cover plate can be extended to block the upper surface or the lower surface of the blow head 32.

[0062] In the embodiments of the present application, hot air circulates along the air path circulation mechanism 1, the first pipeline 22, the blow head mechanism 33, the second pipeline 4 and the air path circulation mechanism 1 in the air path circulation device, and when flowing to the blow head mechanism 3, it dries the tableware in the tableware basket 5 communicated with the blow head mechanism 3. In order to avoid the reverse flow of hot air in the first pipeline 22 and the second pipeline 4, a first gas check valve and a second gas check valve are provided in the air path circulation device.

[0063] The first gas check valve is located in the first pipeline 2, and the installation position of the first gas check valve is close to the blow head mechanism 3. The flow direction of the gas in the first pipeline 2 is restricted by the first gas check valve to prevent the gas from flowing back from the blow head mechanism 3 through the first pipeline 2 to the air path circulation mechanism 1.

[0064] The second gas check valve is located in the second pipeline 4, and the installation position of the second gas check valve is close to the air path circulation mechanism 1. The flow direction of the gas in the second pipeline 4 is restricted by the second gas check valve to prevent the gas from flowing back from the air path circulation mechanism 1 through the second pipeline 4 to the blow head mechanism 3.

[0065] In the embodiments of the present application, the air path circulation mechanism 1 includes a protective housing. A fan and a heater are located inside the protective housing. A first air inlet hole is provided on the upper surface of the protective housing, and the first air inlet hole is communicated with the external environment. A second air inlet hole is provided on the lower surface of the protective housing, and the second air inlet hole is communicated with the chamber of the dishwasher.

[0066] In the embodiments of the present application, after the air path circulation device is started, the fan in the air path circulation mechanism 1 sucks air from the external environment through the first air inlet hole, and the heater in the air path circulation mechanism 1 heats the air. Subsequently, the hot air circulates in the entire air path circulation device. When the hot air flows to the blow head mechanism 3, the hot air flows through the blow head mechanism 3 into the chamber of the dishwasher, and enters the air path circulation mechanism 1 from the chamber of the dishwasher through the second air inlet hole. After the air path circulation device works for a period of time, enough air has accumulated in the chamber of the dishwasher by sucking air from the external environment. At this time, the first air inlet hole can be closed and the intake of external air can be stopped.

[0067] In some possible embodiments, a baffle and a driving motor are provided beside the first air inlet hole, and the driving motor is connected to the baffle. The driving motor is used to drive the baffle to cover or open the first air inlet hole.

[0068] In the embodiments of the present application, the air duct circulation device includes a controller. The controller can be used to control the start or stop of the air duct circulation device.

[0069] In some possible embodiments, a gas flow meter is provided in the first duct 2. The gas flow meter is electrically connected to the controller. The controller is configured to control the drive motor to drive the baffle to open the air inlet hole when the measured value of the gas flow meter is lower than a preset flow value. The gas flow meter can obtain the gas flow value in the first duct 2 in real time and input the obtained gas flow value to the controller. When the gas flow value is lower than the preset flow value, the amount of air in the dishwasher chamber may be insufficient. At this time, the controller will control the drive motor to drive the baffle to open the first air inlet hole, so that the outside air enters the air duct circulation mechanism 1 through the first air inlet hole and flows to the surface of the tableware in the dishwasher chamber.

[0070] In some possible embodiments, the user can adjust the preset flow value in the controller. When the flow value of the air in the dishwasher chamber increases due to the increase of the preset flow value, the air drying efficiency will be improved as the amount of air increases, so that the tableware can be dried more quickly.

[0071] In some possible embodiments, a temperature measuring instrument is provided in the first duct 2. The temperature measuring instrument is electrically connected to the controller. The controller is configured to control the heater to start the heating mode when the measured value of the temperature measuring instrument is lower than a preset temperature value. The temperature measuring instrument can obtain the air temperature in the dishwasher chamber in real time and input the obtained temperature value to the controller. When the gas temperature value is lower than the preset temperature value, the temperature of the air in the dishwasher chamber is too low. At this time, the controller will control the heater to start the heating mode or increase the heating level, so as to increase the temperature of the air.

[0072] In some possible embodiments, the user can adjust the preset temperature value in the controller. When the temperature value of the air in the dishwasher chamber increases due to the increase of the preset temperature value, the air drying efficiency will be improved as the air temperature increases, so that the tableware can be dried more quickly.

[0073] In the embodiments of the present application, by providing the air duct circulation mechanism 1 in the air duct circulation device, the air in the dishwasher chamber can be circulated and heated. By providing the blowing head mechanism 3 in the air duct circulation device, the tableware located above and below the blowing head mechanism 3 can be air-dried. By reasonably utilizing the internal space of the dishwasher, the air duct circulation mechanism 1 is provided at the top of the dishwasher and the blowing head mechanism 3 is installed in the chamber of the dishwasher, so as to achieve the purpose of recycling the air in the chamber to air-dry the tableware and avoid the overall volume of the dishwasher from being too large.

[0074] In the embodiments of the present application, after the dishwasher finishes the dishwashing work, the air in the dishwasher is circulated and heated through the air duct circulation mechanism, and the hot air is blown onto the tableware through the blowing head mechanism, so as to air-dry the tableware. By recycling the air in the dishwasher chamber, the air-drying efficiency of the tableware is improved, and the power consumption is reduced.

[0075] The embodiments of the present application also provide a dishwasher. Figure 5 It is a schematic diagram of a dishwasher provided by the embodiments of the present application, as Figure 5 shown. The dishwasher includes the above-mentioned air duct circulation device. The air duct circulation mechanism 1 is provided at the top of the dishwasher, and the blowing head mechanism 3 is installed in the chamber of the dishwasher. By reasonably utilizing the internal space of the dishwasher, the air duct circulation device is installed in the dishwasher to achieve the purpose of recycling the air in the chamber to air-dry the tableware, and to avoid the overall volume of the dishwasher from being too large.

[0076] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above specifically describes a specific embodiment of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be executed in a different order from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0077] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0078] Those of ordinary skill in the art can understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium. The above-mentioned storage medium can be a read-only memory, a magnetic disk or an optical disc, etc.

[0079] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air circulation device, characterized in that: Applied to a dishwasher, comprising an air circulation mechanism, a first pipeline, a blowing head mechanism and a second pipeline which are connected in sequence; The air circulation mechanism is located at the top of the dishwasher, and the air circulation mechanism includes a fan and a heater; the blowing head mechanism is located in the cavity of the dishwasher, and the blowing head mechanism is communicated with the cavity of the dishwasher; The first duct includes a first air inlet and a first air outlet, and the second duct includes a second air inlet and a second air outlet; the first air inlet and the second air outlet are respectively connected to the left and right ends of the air circulation mechanism, and the first air outlet and the second air inlet are respectively connected to the left and right ends of the blowing head mechanism.

2. The air circulation device according to claim 1, characterized in that: The blowing head mechanism includes a fixing bracket; the fixing bracket is connected to the inner surface of the cavity of the dishwasher; The fixed bracket is provided with a plurality of blowing heads which are arranged in parallel and communicated with each other; each blowing head is communicated with the cavity of the dishwasher.

3. The air circulation device according to claim 2, characterized in that: A plurality of exhaust holes are arranged on the upper surface and the lower surface of each blowing head.

4. The air circulation device according to claim 2, characterized in that: The fixed bracket includes a fixed base; the fixed base is in contact with the inner surface of the cavity of the dishwasher, and the left and right ends of the fixed base are respectively connected to the first air outlet and the second air inlet; A plurality of first fixed shells are arranged in parallel on the upper surface of the fixed base, and a first opening is arranged on the upper surface of each first fixed shell; a plurality of second fixed shells are arranged in parallel on the lower surface of the fixed base, and a second opening is arranged on the lower surface of each second fixed shell; Each of the first fixed shells and each of the second fixed shells are arranged opposite to each other and are connected to each other to form each of the blowing heads.

5. The air circulation device according to claim 3 or 4, characterized in that: The blowing head mechanism comprises an upper cover plate and a lower cover plate; The upper cover plate and the lower cover plate are both connected to the fixing bracket, and the upper cover plate and the lower cover plate are respectively located above and below the multiple blowing heads; the upper cover plate or the lower cover plate is used to cover the upper surface or the lower surface of the multiple blowing heads.

6. The air circulation device according to claim 1, characterized in that: The air circulation device further includes a first gas one-way valve and a second gas one-way valve; The first gas one-way valve is located in the first pipeline; the first gas one-way valve is used to limit the flow direction of gas in the first pipeline to prevent gas from flowing back from the blowing head mechanism through the first pipeline to the air circulation mechanism; The second gas one-way valve is located in the second pipeline; the second gas one-way valve is used to limit the flow direction of gas in the second pipeline to prevent the gas from flowing back from the air circulation mechanism through the second pipeline to the blowing head mechanism.

7. The air circulation device according to claim 1, characterized in that: The air circulation mechanism comprises a protective shell; the fan and the heater are located inside the protective shell; A first air inlet is provided on the upper surface of the protective shell, and the first air inlet is communicated with the external environment; a second air inlet is provided on the lower surface of the protective shell, and the second air inlet is communicated with the cavity of the dishwasher; A baffle and a driving motor are arranged beside the first air inlet, and the driving motor is connected to the baffle; the driving motor is used to drive the baffle to cover or open the first air inlet.

8. The air circulation device according to claim 7, characterized in that: The air circulation device includes a controller; A gas flow meter is arranged in the first pipeline, and the gas flow meter is electrically connected to the controller; The controller is used for controlling the driving motor to drive the baffle to open the first air inlet hole when the measured value of the gas flow meter is lower than a preset flow value.

9. The air circulation device according to claim 8, characterized in that: A temperature measuring instrument is arranged in the first pipeline, and the temperature measuring instrument is electrically connected to the controller; The controller is used for controlling the heater to start a heating mode when the measured value of the temperature measuring instrument is lower than a preset temperature value.

10. A dishwasher, characterized in that: It comprises the air circulation device as described in any one of claims 1 to 9.

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