Cleaning pipeline system and steaming and baking equipment with same

Abstract

The invention discloses a cleaning pipeline system and steaming and baking equipment with the same, the cleaning pipeline system is used for cleaning an inner container of a household appliance, and comprises a clear liquid box, a liquid return box, a pump valve assembly, a cleaning part and a liquid inlet valve assembly; the pump valve assembly is provided with a first inlet part, a second inlet part, a first outlet part and a second outlet part; the inlet end of the liquid inlet valve assembly is connected with a cleaning liquid source; an inlet of the clear liquid box is connected with the outlet end of the liquid inlet valve assembly, and an outlet of the clear liquid box is connected with the first inlet part; the liquid inlet valve assembly can connect or disconnect a passage between the cleaning liquid source and the clear liquid box; an outlet of the liquid return box is connected with the second inlet part, and an inlet of the liquid return box is communicated with the inner container; the first outlet part is connected with the cleaning part, and the cleaning part is used for cleaning the inner container; and the second outlet part is connected with an external liquid discharge pipeline. Through the structural arrangement of the cleaning pipeline system, automatic operation of liquid adding and liquid discharging can be achieved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical appliances, and particularly to a cleaning pipeline system and a steaming and baking device having the same. Background Art

[0002] After a steaming and baking device such as a steam oven is used for a period of time, the inner cavity will have situations that make users uncomfortable, such as oil stains and peculiar smells, and the inner cavity needs to be cleaned in time.

[0003] When the cleaning system of the steam oven is cleaning, it requires the user to manually add water to the water tank of the cleaning system. After the inner cavity is cleaned, the user also needs to manually pour out the sewage after cleaning. In actual application, there may be problems such as the user forgetting to add water before cleaning, resulting in bad problems, or forgetting to pour out the sewage after cleaning, leading to the deterioration of the sewage. Similar problems also exist in other household appliances. Summary of the Invention

[0004] The purpose of the present application is to provide a cleaning pipeline system and a steaming and baking device having the same. The structural setting of the cleaning pipeline system can realize the automatic operation of liquid addition and drainage, and improve the user experience.

[0005] To solve the above technical problems, the present application provides a cleaning pipeline system for cleaning the inner cavity of a household appliance, including a cleaning liquid tank, a return liquid tank, a pump valve assembly, a cleaning component, and a liquid inlet valve assembly;

[0006] The pump valve assembly has a first inlet part, a second inlet part, a first outlet part, and a second outlet part;

[0007] The inlet end of the liquid inlet valve assembly is connected to a cleaning liquid source; the inlet of the cleaning liquid tank is connected to the outlet end of the liquid inlet valve assembly, and the outlet of the cleaning liquid tank is connected to the first inlet part; the liquid inlet valve assembly can conduct or cut off the passage between the cleaning liquid source and the cleaning liquid tank;

[0008] The outlet of the return liquid tank is connected to the second inlet part, the inlet of the return liquid tank is communicated with the inner cavity; the first outlet part is connected to the cleaning component for cleaning the inner cavity; the second outlet part is connected to an external drainage pipeline.

[0009] In practical applications, the cleaning pipeline system can automatically replenish the cleaning liquid box by switching the on-off state of the liquid inlet valve assembly, and can achieve automatic replenishment of the return liquid box, circulating cleaning of the inner tank, and automatic drainage of the cleaning liquid box and the return liquid box by switching the on-off states of the interfaces (including each inlet part and each outlet part) of the pump valve assembly and the operating state of the pump body in the pump valve assembly. In this way, the situation of users manually replenishing liquid and discharging sewage is avoided, and the user experience can be improved; at the same time, the structural setting of the cleaning pipeline system provides technical conditions for the automated operation of cleaning the inner tank.

[0010] In an implementable solution, the pump valve assembly includes a first three-way valve, a pump body, and a second three-way valve; the first three-way valve has the first inlet part, the second inlet part, and a valve outlet part; the second three-way valve has a valve inlet part, the first outlet part, and the second outlet part; the valve outlet part is connected to the pump inlet part of the pump body, and the pump outlet part of the pump body is connected to the valve inlet part.

[0011] In an implementable solution, the liquid inlet valve assembly is an electric valve or a solenoid valve, and both the first three-way valve and the second three-way valve are electric valves or solenoid valves.

[0012] In an implementable solution, the pump valve assembly is integrated with a heating module, or a heating module is integrated on the connecting pipeline between the first outlet part and the cleaning component.

[0013] In an implementable solution, the cleaning pipeline system is further provided with a liquid detection module, and the liquid detection module is used to detect the liquid filling amount of the cleaning liquid box.

[0014] In an implementable solution, the liquid detection module is a liquid flow sensor or a liquid level sensor.

[0015] In an implementable solution, the cleaning liquid source connected to the liquid inlet valve assembly is a clean water source, and the cleaning liquid box is further used to provide a steam water source for the inner tank.

[0016] In an implementable solution, the cleaning pipeline system further includes a control module, the control module is electrically connected to the liquid inlet valve assembly and the pump valve assembly, and the control module is used to switch the working positions of the liquid inlet valve assembly and the pump valve assembly so that the cleaning pipeline system switches among five modes: adding liquid to the cleaning liquid box, adding liquid to the return liquid box, circulating cleaning, draining the return liquid box, and draining the cleaning liquid box.

[0017] In an implementable solution, in the mode of adding liquid to the cleaning liquid box, the liquid inlet valve assembly is in the open valve position for connecting the cleaning liquid source and the cleaning liquid box, and the first inlet part is in the closed state.

[0018] In the mode of adding liquid to the liquid return box, the first inlet part is in an open state, the second inlet part is in a closed state, the first outlet part is in an open state, the second outlet part is in a closed state, and the pump body of the pump valve assembly is in an operating state;

[0019] In the mode of circulating cleaning, the first inlet part is in a closed state, the second inlet part is in an open state, the first outlet part is in an open state, the second outlet part is in a closed state, and the pump body of the pump valve assembly is in an operating state;

[0020] In the mode of draining the liquid return box, the first inlet part is in a closed state, the second inlet part is in an open state, the first outlet part is in a closed state, the second outlet part is in an open state, and the pump body of the pump valve assembly is in an operating state;

[0021] In the mode of draining the clean liquid box, the first inlet part is in an open state, the second inlet part is in a closed state, the first outlet part is in a closed state, the second outlet part is in an open state, and the pump body of the pump valve assembly operates.

[0022] This application also provides a steaming and baking device, including an inner container and a cleaning pipeline system. The cleaning pipeline system is the cleaning pipeline system described in any one of the above, and the outlet of the inner container is communicated with the inlet of the liquid return box.

[0023] Since the above cleaning pipeline system has the above technical effects, the steaming and baking device including this cleaning pipeline system also has the same technical effects, and will not be repeated here. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the cleaning pipeline system of the steaming and baking device provided by an embodiment of this application;

[0025] Figure 2 For Figure 1 It is a schematic flow path diagram of the shown cleaning pipeline system in the mode of adding liquid to the clean liquid box;

[0026] Figure 3 For Figure 1 It is a schematic flow path diagram of the shown cleaning pipeline system in the mode of adding liquid to the liquid return box;

[0027] Figure 4 For Figure 1 It is a schematic flow path diagram of the shown cleaning pipeline system in the mode of circulating cleaning;

[0028] Figure 5 For Figure 1 It is a schematic flow path diagram of the shown cleaning pipeline system in the mode of draining the liquid return box;

[0029] Figure 6 is Figure 1 a schematic diagram of the flow path when the cleaning pipeline system shown is in the mode of draining the clear liquid box.

[0030] Description of the reference numerals in the drawings:

[0031] Liquid inlet valve assembly 10, clear liquid box 20, return liquid box 30, pump valve assembly 40, first three-way valve 41, pump body 42, second three-way valve 43, first inlet part 1a, second inlet part 2a, first outlet part 1b, second outlet part 2b, cleaning component 50, inner tank 60. Specific embodiments

[0032] To enable those skilled in the art to better understand the solution of this application, the following further elaborates on this application in conjunction with the drawings and specific embodiments.

[0033] The cleaning pipeline system provided in this embodiment can be applied to household appliances such as steam cooking devices, and is used to clean the inner tank of household appliances. Without loss of generality, the following takes a steam cooking device as an example to illustrate the cleaning pipeline system and the steam cooking device with this cleaning pipeline system together, and the beneficial effects will not be repeated.

[0034] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the structure of the cleaning pipeline system of a steam cooking device provided in an embodiment of this application.

[0035] The steam cooking device includes an inner tank 60 for steaming and roasting food. After being used for a period of time, the inner tank 60 needs to be cleaned. The steam cooking device is provided with a cleaning pipeline system for cleaning the inner tank 60.

[0036] In this embodiment, the cleaning pipeline system includes a liquid inlet valve assembly 10, a clear liquid box 20, a return liquid box 30, a pump valve assembly 40, and a cleaning component 50.

[0037] The pump valve assembly 40 has a first inlet part 1a, a second inlet part 2a, a first outlet part 1b, and a second outlet part 2b.

[0038] The inlet end of the liquid inlet valve assembly 10 is connected to the cleaning liquid source, and the inlet of the clear liquid box 20 is connected to the outlet end of the liquid inlet valve assembly 10. The liquid inlet valve assembly 10 can conduct or cut off the passage between the cleaning liquid source and the clear liquid box 20. In other words, the liquid inlet valve assembly 10 has an open valve position and a closed valve position. When the liquid inlet valve assembly 10 is in the open valve position, the cleaning liquid of the cleaning liquid source can be sent into the clear liquid box 20 through the liquid inlet valve assembly 10. When the liquid inlet valve assembly 10 is in the closed valve position, the cleaning liquid of the cleaning liquid source cannot enter the clear liquid box 20 through the liquid inlet valve assembly 10.

[0039] The outlet of the clear liquid box 20 is connected to the first inlet part 1a of the pump valve assembly 40, the outlet of the liquid return box 30 is connected to the second inlet part 2a of the pump valve assembly 40, the first outlet part 1b of the pump valve assembly 40 is connected to the cleaning component 50, and the second outlet part 2b of the pump valve assembly 40 is connected to an external liquid discharge pipeline. For example, the second outlet part 2b of the pump valve assembly 40 can be communicated with a sewer through an external liquid discharge pipeline.

[0040] The inlet of the liquid return box 30 is communicated with the inner tank 60, and the cleaning component 50 is used to clean the inner tank 60.

[0041] In practical applications, the cleaning pipeline system can automatically replenish the clear liquid box 20 by switching the switch state of the inlet valve assembly 10, and can realize the automatic replenishment of the liquid return box 30, the circulating cleaning of the inner tank 60, and the automatic liquid discharge of the clear liquid box 20 and the liquid return box 30 by switching the switch states of the interfaces (including each inlet part and each outlet part) of the pump valve assembly 40 and the operating state of the pump main body 42 in the pump valve assembly 40. In this way, the situation of users manually replenishing liquid and discharging sewage is avoided, and the user experience can be improved; at the same time, the structural setting of the cleaning pipeline system provides technical conditions for the automated operation of cleaning the inner tank 60.

[0042] In this embodiment, the pump valve assembly 40 includes a first three-way valve 41, a pump main body 42, and a second three-way valve 43. Among them, the first three-way valve 41 is a two-in-one-out three-way valve, having the aforementioned first inlet part 1a, the aforementioned second inlet part 2a, and a valve outlet part; the second three-way valve 43 is a one-in-two-out three-way valve, having a valve inlet part, the aforementioned first outlet part 1b, and the aforementioned second outlet part 2b; the valve outlet part of the first three-way valve 41 is connected to the pump inlet part of the pump main body 42, and the pump outlet part of the pump main body 42 is connected to the valve inlet part of the second three-way valve 43.

[0043] The first three-way valve 41 has a working position where the first inlet part 1a and the valve outlet part are communicated and a working position where the second inlet part 2a and the valve outlet part are communicated. In other words, the first three-way valve 41 has a working position where the first inlet part 1a is opened and the second inlet part 2a is closed, and a working position where the second inlet part 2a is opened and the first inlet part 1a is closed. For the convenience of operation in practical applications, the first three-way valve 41 can also have a working position where both the first inlet part 1a and the second inlet part 2a are closed.

[0044] The second three-way valve 43 has a working position where the valve inlet part and the first outlet part 1b are communicated and a working position where the valve inlet part and the second outlet part 2b are communicated. In other words, the second three-way valve 43 has a working position where the first outlet part 1b is opened and the second outlet part 2b is closed, and a working position where the second outlet part 2b is opened and the first outlet part 1b is closed. For the convenience of operation in practical applications, the second three-way valve 43 can also have a working position where both the first outlet part 1b and the second outlet part 2b are closed.

[0045] Based on the different states of the water inlet valve assembly 10, the first three-way valve 41, the pump body 42, and the second three-way valve 43, the cleaning pipeline system can have five working modes. The following will introduce them respectively in combination with Figures 2 to 6 the thick solid lines and arrows marked in Figures 2 to 6 indicate the flow paths of the cleaning liquid in each mode.

[0046] As Figure 2 shown, the cleaning pipeline system has a mode of adding liquid to the cleaning liquid box. In this mode, the water inlet valve assembly 10 is in the open valve position, the first inlet part 1a of the first three-way valve 41 is in the closed state, and the cleaning liquid from the cleaning liquid source enters the cleaning liquid box 20 through the water inlet valve assembly 10; at this time, the connecting pipeline between the cleaning liquid box 20 and the first inlet part 1a of the first three-way valve 41 is also filled with cleaning liquid. Obviously, in this mode, the pump body 42 of the pump valve assembly 40 does not operate.

[0047] In specific implementation, the cleaning pipeline system can be provided with a liquid detection module for detecting the liquid addition amount of the cleaning liquid box 20 to avoid excessive liquid addition.

[0048] Exemplarily, the liquid detection module can adopt a liquid flow sensor or a liquid level sensor.

[0049] In application, after it is determined by the liquid detection module that the liquid addition amount of the cleaning liquid box 20 reaches the requirement, the water inlet valve assembly 10 can be switched to the closed valve position to stop replenishing the cleaning liquid box 20.

[0050] As Figure 3 shown, the cleaning pipeline system has a mode of adding liquid to the return liquid box. This mode can also be called the primary cleaning mode. In this mode, the first inlet part 1a of the first three-way valve 41 is in the open state, the second inlet part 2a is in the closed state, the first outlet part 1b of the second three-way valve 43 is in the open state, the second outlet part 2b is in the closed state, and the pump body 42 is in the operating state; in this way, the cleaning liquid in the cleaning liquid box 20 enters the pump body 42 through the first inlet part 1a, is pumped by the pump body 42 to the cleaning component 50 connected to the first outlet part 1b, enters the inner tank 60 through the cleaning component 50, and then enters the return liquid box 30 through the inner tank 60, realizing the liquid addition to the return liquid box 30. Since the cleaning liquid enters the inner tank 60 through the cleaning component 50 and then enters the return liquid box 30 from the inner tank 60, it is equivalent to cleaning the inner tank 60 once.

[0051] As Figure 4As shown, the cleaning pipeline system has a circulating cleaning mode. In this mode, the first inlet part 1a of the first three-way valve 41 is in the closed state, the second inlet part 2a is in the open state, the first outlet part 1b of the second three-way valve 43 is in the open state, the second outlet part 2b is in the closed state, and the pump body 42 is in the operating state. In this way, under the action of the pump body 42, the cleaning liquid can circulate between the liquid return box 30, the cleaning component 50, and the inner tank 60, realizing the circulating cleaning of the inner tank 60.

[0052] As Figure 5 shown, the cleaning pipeline system has a liquid drainage mode for the liquid return box. After the cleaning liquid in the liquid return box 30 is used to circulate and clean the inner tank 60 a certain number of times, the cleaning liquid becomes dirty liquid and needs to be drained. At this time, the cleaning pipeline system can be switched to the liquid drainage mode for the liquid return box to drain the dirty liquid in the liquid return box 30. In this mode, the first inlet part 1a of the first three-way valve 41 is in the closed state, the second inlet part 2a is in the open state, the first outlet part 1b of the second three-way valve 43 is in the closed state, the second outlet part 2b is in the open state, and the pump body 42 is in the operating state. In this way, the dirty liquid in the liquid return box 30 enters the pump body 42 through the second inlet part 2a and is pumped by the pump body 42 to the external drainage pipeline connected to the second outlet part 2b, realizing the automatic drainage of the dirty liquid.

[0053] As Figure 6 shown, the cleaning pipeline system has a liquid drainage mode for the cleaning liquid box. In practical applications, if there is cleaning liquid in the cleaning liquid box 20, it also needs to be drained after long-term non-use, or in other situations where the cleaning liquid in the cleaning liquid box 20 needs to be drained. At this time, the cleaning pipeline system can be switched to the liquid drainage mode for the cleaning liquid box. In this mode, the first inlet part 1a of the first three-way valve 41 is in the open state, the second inlet part 2a is in the closed state, the first outlet part 1b of the second three-way valve 43 is in the closed state, the second outlet part 2b is in the open state, and the pump body 42 is in the operating state. In this way, the liquid in the cleaning liquid box 20 enters the pump body 42 through the first inlet part 1a and is pumped by the pump body 42 to the external drainage pipeline connected to the second outlet part 2b, realizing the automatic drainage of the liquid.

[0054] In specific implementation, the cleaning pipeline system can be provided with a control module, which can be electrically connected to the liquid inlet valve assembly 10 and the pump valve assembly 40. The relevant states of the liquid inlet valve assembly 10 and the pump valve assembly 40 are switched through the control module to realize the switching between the above five modes.

[0055] The liquid inlet valve assembly 10 can be set as an electric valve or a solenoid valve, and the first three-way valve 41 and the second three-way valve 43 of the pump valve assembly 40 can also be set as an electric valve or a solenoid valve to facilitate electrical connection with the control module and realize automatic control.

[0056] In a specific implementation, the cleaning liquid source connected to the water inlet valve assembly 10 can be a clean water source. At this time, the cleaning liquid box 20 can also serve as the steam water source of the steaming and baking device and is connected to the steam generator of the steaming and baking device through another independent pipeline. A switch valve that can be opened and closed can be provided on this independent pipeline to supply water or cut off water to the steam generator by the on-off state of the switch valve.

[0057] In a specific implementation, to improve the cleaning effect on the inner cavity 60, a heating module can also be integrated on the pump valve assembly 40 to heat the cleaning liquid used to clean the inner cavity 60, so as to better remove oil stains, sundries, etc. in the inner cavity 60. In other implementation manners, the heating module can also be integrated on the connecting pipeline between the pump valve assembly 40 and the cleaning component 50.

[0058] In a specific implementation, the cleaning component 50 can include a liquid spraying pipe and at least one spray head provided on the liquid spraying pipe. The cleaning liquid pumped to the cleaning component 50 can be transported to each spray head through the liquid spraying pipe, and the inner cavity 60 is cleaned under the spraying action of each spray head.

[0059] The number and arrangement of the spray heads can be arranged according to the size of the inner cavity 60 so as to clean all parts of the inner cavity 60.

[0060] In other embodiments, the first three-way valve 41 or the second three-way valve 43 in the pump valve assembly 40 can also be replaced by two on-off valves arranged in parallel. Taking the replacement of the first three-way valve 41 as an example, an on-off valve is connected between the cleaning liquid box 20 and the pump inlet part of the pump body 42, and another on-off valve is connected between the liquid return box 20 and the pump inlet part of the pump body 42. For the convenience of connection, the outlets of the two on-off valves can be connected to a transfer pipeline, and then connected to the pump inlet part of the pump body 42 through this transfer pipeline.

[0061] In this text, specific examples are used to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A cleaning pipeline system for cleaning the inner liner of a household appliance, characterized in that, it includes a clean liquid box, a return liquid box, a pump valve assembly, a cleaning component and a liquid inlet valve assembly; the pump valve assembly has a first inlet part, a second inlet part, a first outlet part and a second outlet part; the inlet end of the liquid inlet valve assembly is connected to a cleaning liquid source; the inlet of the clean liquid box is connected to the outlet end of the liquid inlet valve assembly, and the outlet of the clean liquid box is connected to the first inlet part; the liquid inlet valve assembly can conduct or cut off the passage between the cleaning liquid source and the clean liquid box; the outlet of the return liquid box is connected to the second inlet part, and the inlet of the return liquid box is communicated with the inner liner; the first outlet part is connected to the cleaning component for cleaning the inner liner; the second outlet part is connected to an external drainage pipeline.

2. The cleaning pipeline system according to claim 1, characterized in that, the pump valve assembly includes a first three-way valve, a pump main body and a second three-way valve; the first three-way valve has the first inlet part, the second inlet part and a valve outlet part; the second three-way valve has a valve inlet part, the first outlet part and the second outlet part; the valve outlet part is connected to the pump inlet part of the pump main body, and the pump outlet part of the pump main body is connected to the valve inlet part.

3. The cleaning pipeline system according to claim 2, characterized in that, the liquid inlet valve assembly is an electric valve or a solenoid valve, and both the first three-way valve and the second three-way valve are electric valves or solenoid valves.

4. The cleaning pipeline system according to claim 1, characterized in that, the pump valve assembly is integrated with a heating module, or a heating module is integrated on the connecting pipeline between the first outlet part and the cleaning component.

5. The cleaning pipeline system according to any one of claims 1-4, characterized in that, the cleaning pipeline system is further provided with a liquid detection module for detecting the liquid filling amount of the clean liquid box.

6. The cleaning pipeline system according to claim 5, characterized in that, the liquid detection module is a liquid flow sensor or a liquid level sensor.

7. The cleaning pipeline system according to any one of claims 1-4, characterized in that, the cleaning liquid source connected to the liquid inlet valve assembly is a clean water source, and the clean liquid box is also used to provide a steam water source for the inner liner.

8. The cleaning pipeline system according to any one of claims 1-4, characterized in that, the cleaning pipeline system further includes a control module, which is electrically connected to the liquid inlet valve assembly and the pump valve assembly, and the control module is used to switch the working positions of the liquid inlet valve assembly and the pump valve assembly so as to switch the cleaning pipeline system among five modes: filling the clean liquid box, filling the return liquid box, circulating cleaning, draining the return liquid box and draining the clean liquid box.

9. The cleaning pipeline system according to claim 8, characterized in that, in the mode of filling the clean liquid box, the liquid inlet valve assembly is in the open valve position of conducting the cleaning liquid source and the clean liquid box, and the first inlet part is in the closed state; In the mode of adding liquid to the liquid return box, the first inlet part is in an open state, the second inlet part is in a closed state, the first outlet part is in an open state, the second outlet part is in a closed state, and the pump body of the pump valve assembly is in an operating state; In the mode of circulating cleaning, the first inlet part is in a closed state, the second inlet part is in an open state, the first outlet part is in an open state, the second outlet part is in a closed state, and the pump body of the pump valve assembly is in an operating state; In the mode of draining the liquid return box, the first inlet part is in a closed state, the second inlet part is in an open state, the first outlet part is in a closed state, the second outlet part is in an open state, and the pump body of the pump valve assembly is in an operating state; In the mode of draining the clean liquid box, the first inlet part is in an open state, the second inlet part is in a closed state, the first outlet part is in a closed state, the second outlet part is in an open state, and the pump body of the pump valve assembly operates.

10. A steam cooking device, characterized in that it includes an inner container and a cleaning pipeline system, the cleaning pipeline system is the cleaning pipeline system according to any one of claims 1-9, and the outlet of the inner container is communicated with the inlet of the liquid return box.

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