US20190017207A1

US20190017207A1 - Multi-drum washing machine and control method therefor

Info

Publication number: US20190017207A1
Application number: US16/068,265
Authority: US
Inventors: Wenwei Li; Jun Wu; Haibo Wang; Jinkai Wang; Rongshuai CAI; Xiao NING
Original assignee: Qingdao Haier Washing Machine Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd
Priority date: 2016-01-06
Filing date: 2017-01-06
Publication date: 2019-01-17
Also published as: JP2019501724A; WO2017118423A1; EP3401431A4; EP3401431A1; CN106948124A

Abstract

Provided are a multi-drum washing machine and a control method therefor, and the multi-drum washing machine includes: at least two independent washing drums, a control panel an integrated circuit (IC) controller and a driving circuit board; the control panel has a plurality of input control elements and a plurality of output display elements the input control elements are configured for inputting laundry parameters; the output display elements are configured for displaying states in a washing process; and the IC controller and the driving circuit board are connected to the control panel and control an operation of the washing drums.

Description

TECHNICAL FIELD

The present disclosure relates to a technical field of design and manufacture of washing machines, in particular relates to a multi-drum washing machine and a control method therefor.

BACKGROUND

An ordinary drum washing machine is a single-drum washing machine. In order to meet the requirements of washing all the family clothes, a washing machine with a large capacity, such as a large washing machine over 6 kg, is generally selected by a family. With the progress of the times and the improvement of people's living standards, the pace of life is getting faster and faster. Then, many problems occur in the use of the above-mentioned washing machines. For example, clothes may be divided into adult clothes, underwear and children's clothes. The washing machines are used for several times just for performing separated washings, which requires a lot of washing time and consumes a lot of energy. When the energy saving is taken into account, the washing process set in a large washing machine generally consumes a large amount of water and a large amount of electricity as well. When a small amount of laundry is washed, a large washing machine generally is not a good choice, and at the same time, the washing time is relatively long due to the large amount of laundry expected during the washing process. In addition, the washing process set by the large washing machine is expected to be mainly general clothes, and may not be suitable for washing fine clothes such as underwear or children's clothing, etc.
In order to solve the above problems, a double-drum washing machine has been developed in a related art. Such a double-drum washing machine has a large-capacity washing drum and a small-capacity washing drum that are driven individually or simultaneously, and performs separate washing operations in each drum. It is as if that the user should use two drum washing machines with different capacities at the same time, without occupying additional physical space. It is possible to flexibly perform washings simultaneously or separately according to the washing amount and the type of washing clothes.
However, in the related art, for the above-mentioned double-drum washing machine, independent input control unit and independent output display unit are usually configured for each washing tub. The control system is simply superimposed on the hardware, and is still essentially two separate control systems. It indirectly leads to higher manufacturing costs, hinders the promotion and application in the market, and it is also to the disadvantage of the upgrade and maintenance of the control system in a later period.

SUMMARY

The present disclosure provides a multi-drum washing machine and a control method therefor to solve the problem of controlling each washing dram of the multi-drum washing machine so as to reduce the manufacturing cost of the multi-drum washing machine.
Embodiments of the present disclosure provide a multi-drum washing machine, including:
at least two separate washing drums, a control panel, an integrated circuit (IC) controller, and a driving circuit board,
the control panel has a plurality of input control elements and a plurality of output display elements, the input control elements are configured for inputting laundry parameters, and the output display elements are configured for displaying states in a washing process, and
the IC controller and the driving circuit board are connected to the control panel and control the operation of the washing drums.
In one embodiment, the plurality of washing drums share a part or all of the input control elements and the output display elements, and shared input control elements and/or shared output display elements uniquely correspond to an operating program of one of the washing drums by selecting one of the washing drums at the time of operation and serve as input elements or output elements of one of the washing drums.
In one embodiment, a selection switch is disposed on the control panel for designating one of the washing drums.
In one embodiment, the switch is a button or a rotary knob.
In one embodiment, a plurality of the washing drums have respective separate output display elements, and only the input control elements are shared.
In one embodiment, the plurality of the washing drums have respective separate input control elements, and only the output display elements are shared.
In one embodiment, the plurality of the washing drums share the input control elements and the output display elements.
In one embodiment, the control panel has a power switch served as a total control power switch.
In one embodiment, the input control element and the output display element are a same button.
The embodiments of the present disclosure also provides a control method of a multi-drum washing machine, which adopts the multi-drum washing machine provided by any one embodiment of the present disclosure, and the method includes:
acquiring a selection instruction of a corresponding washing drum by a washing machine, retrieving a background control program of the washing drum and enabling the shared input control elements and/or the shared output display elements to uniquely correspond to the operating program of one of the washing drums and serve as input elements or output elements of the one of the washing drums.
In one embodiment, when the background control program of the washing drum is retrieved, only the input control elements are used as input elements.
In one embodiment, when the background control program of the washing drum is retrieved, only the output control elements are used as output elements.
Regarding the multi-drum washing machine and the control method therefor provided by the embodiments of the present disclosure, input control elements and output display elements are provided on the control panel. During uses, a plurality of washing drums share all or a part of the input control elements and the output display elements. By selecting a specific washing drum, the corresponding washing program is retrieved, and the above-mentioned input control elements and/or output display elements are associated with the washing program as a corresponding input and output of one of the washing drums so that operations and controls of a plurality of washing drums are incorporated with a set of control systems. It replaces a superposition of simple hardware in the past, and reduces the number of the input control units and the output display units in the control panel of the multi-washing drum washing machine, thereby simplifying the hardware structure of the control panel, reducing the cost of the hardware of the washing machine and contributing to the later upgrade and maintenance of the control system.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a structural diagram showing an appearance of a double-drum washing machine according to an embodiment;

FIG. 2 is a structural composition diagram showing a control system of the double-drum washing machine according to an embodiment;

FIG. 3 is a structural composition diagram showing a control panel of the double-drum washing machine according to an embodiment;

FIG. 4 is a schematic view of the composition of a plurality of input control elements of the double-drum washing machine according to an embodiment;

FIG. 5 is a schematic view of the composition of a plurality of output display elements of the double-drum washing machine according to an embodiment;

FIG. 6 is a second composition diagram showing the control panel of the double-drum washing machine according to an embodiment;

FIG. 7 is a third composition diagram showing the control panel of the double-drum washing machine according to an embodiment;

FIG. 8 is a fourth composition diagram showing the control panel of the double-drum washing machine according to an embodiment;

FIG. 9 is a schematic diagram of the input control elements and the output display elements located in a same button according to an embodiment; and

FIG. 10 is a flowchart showing a control method according to an embodiment of the present disclosure.

DESCRIPTION OF SYMBOLS

In the figure:
1: Upper drum; 2: Lower drum; 3: Control panel; 4: Input control unit; 5, 6: Output display unit; 7: Switching unit; 8: Power switch; 9: Input control element; 10: Output display element

DETAILED DESCRIPTION

The present disclosure will be described in detail below in combination with alternative embodiments and drawings. It should be understood that, the alternative embodiments described herein are merely for purposes of explaining the present disclosure and are not intended to limit the present disclosure. In addition, for ease of description, only some of the details related to the present disclosure are shown in the drawings instead of the whole contents. The features in the embodiments and the embodiments may be combined with each other arbitrarily without conflicts.
As shown in FIG. 1, a schematic diagram of the appearance of a double-drum washing machine is provided. The washing machine is equipped with an upper drum 1 and a lower drum 2 in a machine body to form a pair of separate washing drums, and has a control panel 3 at the same time. In practical productions, the capacity of the upper drum 1 is usually designed to be small, generally 2-3 kg, and the capacity of the lower drum 2 is designed to be large, generally 6-8 kg, which is also beneficial to lower of the overall washing machine's center of gravity. In operations, two separate washing drums can be operated separately or simultaneously. For a user, it is as if that there should be two drum washing machines with different capacities at the same time, and there are more choices when the user faces various washing conditions at home. For example, the upper drum can be used for the fine washing of single or small batches of clothes, and the lower drum can be used for washing large items of clothing, such as the cleaning of bed sheets. More importantly, the two batches of washing can be performed simultaneously, and the waiting time can be reduced. From the aspect of actual use effect, it provides the advantages of saving time and energy.
Since the above-mentioned drum washing machine involves the control of two independent washing drums (the upper and lower washing drums), it is objectively necessary to provide two sets of input control units and output display units respectively correspond to each of the two independent washing drums on the control panel 3 to cooperate with the user to perform input settings and status display for each of the two independent washing drums, and the composition of the control system of the double-drum washing machine is shown in FIG. 2. The user performs settings of a variety of laundry parameters and programs through the control panel. The IC controller performs a communication connection with the control panel, the input parameter of the control panel is received, a selected program is inputted, and instructions are sent to the driving circuit. According to the instructions, the driving circuit drives the corresponding operations of the upper drum or the lower drum, and the corresponding IC controller transmits the working state parameters of the corresponding drum in real time to the control panel for a real-time display, so as to facilitate the user's control over a washing process.
Regarding a control process of the double-drum washing machine, the control panel provided by embodiments of the present disclosure may adopt structures shown in FIGS. 3 to 5. The areas in the control panel can be divided into an input control unit 4, an output display unit 5, 6 and a switching unit 7. The input control unit 4 is composed of six buttons of “temperature”, “rotation speed”, “wash”, “rinse”, “reserve” and “clean”, as input control elements 9, and all the input control elements in the input control unit 4 are taken as common parts of the upper and lower drums. Accordingly, the output display unit 5 is also composed of a plurality of output display elements 10, which respectively correspond to the displays of the selected parameters at the time of inputting the input control elements of the upper drum as “temperature”, “rotation speed”, “wash”, “rinse”, “reserve” and “clean”. At the same time, the output display unit 6 is also composed of a plurality of output display elements, which respectively correspond to the displays of the selected parameters at the time of inputting the input control elements of lower drum as “temperature”, “rotation speed”, “wash”, “rinse”, “reserve” and “clean”. During operations, the corresponding upper or lower drum is selected by the selection of the switching unit 7. As shown in FIG. 3, at this time, the upper drum is selected, shared input control elements uniquely correspond to the operating procedure of the upper drum, and the IC controller transfers the above-mentioned input parameters to the corresponding operation program. At this time, shared control elements 9 are merely used as the input of a control program the upper drum, and the output display units of the corresponding upper and lower drums are independent, e.g. the “rotation speed” is 900 rpm for the upper drum and 1000 rpm for the lower drum; and the “washing” is 30 minutes for the upper drum and 20 minutes for the lower drum. This enables the real-time status of the operation of the washing machine to be more visible.
Another option of the structure of the control panel is shown in FIG. 6. The area of the control panel is divided into an input control unit 4 and an output display unit 5. In this example, the corresponding output display unit 5 is formed by a plurality of output display elements 10, which are served as common output display elements. There are two input control units 4 to respectively correspond to the upper drum and the lower drum. Each input control unit 4 is formed by six buttons marked with “temperature”, “rotation speed”, “wash”, “rinse”, “reserve” and “clean” as the input control elements 9, and each of the six buttons corresponds to the input control elements of control programs of the upper and lower drum. During operations, the corresponding upper or lower drum is selected by the selection of the switching unit 7. As shown in FIG. 6, the upper drum is selected at this time, and the common output display elements uniquely correspond to the operating procedure of the upper drum. The IC controller outputs the status parameters of the upper drum in real-time through the above display elements. As shown in the figure, the upper drum has a “temperature” of 60° C., a “rotation speed” of 800 rpm, a “washing” time of 30 minutes and “rinse” for three times. At this time, the inputs of the upper and lower drums are inputted through separate control elements.
A third option of the structure of the control panel is shown in FIG. 7. The area of the control panel is divided into an input control unit 4 and an output display unit 5. In this example, the corresponding output display unit 5 is formed by a plurality of output display elements 10, which are served as common output display elements. The input control unit 4 is formed by six buttons marked with “temperature”, “rotation speed”, “wash”, “rinse”, “reserve” and “clean” as the input control elements 9, which are also served as common output display elements. During operations, the corresponding upper or lower drum is selected by the selection of the switching unit 7. As shown in FIG. 7, the upper drum is selected at this time, and the common output display elements and the common input control elements uniquely correspond to the operating procedure of the upper drum. The IC controller outputs the status parameters of the upper drum in real-time through the above display elements. As shown in the figure, the upper drum has a “temperature” of 60° C., a “rotation speed” of 800 rpm, a “washing” time of 30 minutes and “rinse” for twice. The advantage of this solution is that the input and output functions necessary for separately controlling the upper and lower drums can be satisfied with merely using a set of common input control elements and common output display elements.
Another advantage of the embodiments of the present disclosure is that, for two or more separate washing drums, no major changes are required for their respective control systems, i.e. only one separate system needs to be maintained during maintenance, which is of practical significance to the later software upgrading of the product, such as the increasing demands of the customers driven by the Internet.
For the entire control panel, since there is merely one set of control systems, one power switch 8 can be separately configured as the total power control. The corresponding switching unit 7 also can be configured in a variety of external forms. In addition to the commonly used double buttons, a single button can be used for switching. Alternatively, a knob can be used for performing selections and switching.
FIG. 8 shows a fourth possible selection of the structure of the control panel. As shown in the figure, the rotary knob can be used as a selection switch, a rotation direction serves as the input control elements, and program items on both sides serve as the output display elements. The corresponding input control elements and output display elements are shared, and the washing drum is selected by a selection switch. As shown in the figure, it is used as the output of the lower drum.
In practical use, another case also exists. As shown in FIG. 9, a corresponding input control element and an output display element are configured on a same button position, which is used as an input and also as an output status. As shown in the figure, the “chemical fiber” washing program is selected at this time, and at the same time, just at this time, the corresponding “chemical fiber” button lights up as the output of the state.
FIG. 10 correspondingly shows a flow chart of the control method applied in the above-mentioned washing machine. When the washing machine is operated, it includes the following steps: in S110, acquiring a selection instruction of a corresponding washing drum by a washing machine, and in S120, retrieving a background control program of the washing drum and enabling shared input control elements and/or shared output display elements to uniquely correspond to the operating procedure of one of the washing drums and serve as input elements or output elements of one of the washing drums.
Certainly, as an optional mode of program execution, when the background control program of the washing drum is configured to be retrieved according to the structure of the control panel, only the input control element is used as an input element, and when the background control program of the washing drum is retrieved, only the output control elements are used as output elements.
Above descriptions are merely optional embodiments of the present disclosure and are not intended to limit the disclosure. For those skilled in the art, the present disclosure may have various changes and modifications in the alternative embodiments.

Claims

What is claimed is:

1. A multi-drum washing machine, comprising:

at least two independent washing drums, a control panel, an integrated circuit (IC) controller and a driving circuit board, wherein

the control panel comprises a plurality of input control elements and a plurality of output display elements, the plurality of input control elements are configured for inputting laundry parameters, and the plurality of output display elements are configured for displaying states in a washing process, and

the IC controller and the driving circuit board are connected to the control panel and control an operation of the at least two independent washing drums.

2. The multi-drum washing machine according to claim 1, wherein the at least two independent washing drums share a part or all of the plurality of input control elements and the plurality of output display elements, and shared input control elements and/or shared output display elements uniquely correspond to an operating program of one of the at least two independent washing drums by selecting the one of the at least two independent washing drums at the time of operation, and serve as input elements or output elements of the one of the at least two independent washing drums.

3. The multi-drum washing machine according to claim 2, wherein a selection switch is disposed on the control panel for designating one of the at least two independent washing drums.

4. The multi-drum washing machine according to claim 2, wherein the at least two independent washing drums have respective separate output display elements, and only the plurality of input control elements are shared.

5. The multi-drum washing machine according to claim 2, wherein the at least two independent washing drums have respective separate input control elements, and only the plurality of output display elements are shared.

6. The multi-drum washing machine according to claim 2, wherein the at least two independent washing drums share the plurality of input control elements and the output display elements.

7. The multi-drum washing machine according to claim 3, wherein the selection switch is a button or a rotary knob.

8. The multi-drum washing machine according to claim 1, wherein the control panel comprises a power switch served as a total control power switch.

9. The multi-drum washing machine according to claim 1, wherein one of the plurality of input control elements and a respective one of the plurality of output display elements are a same button.

10. A control method for a multi-drum washing machine employing any one of the multi-drum washing machines in claim 1, the method comprising:

acquiring a selection instruction of a corresponding washing drum by a washing machine, and

retrieving a background control program of the washing drum and enabling shared input control elements and/or shared output display elements to uniquely correspond to an operating program of one of the at least two independent washing drums and serve as input elements or output elements of the one of the at least two independent washing drums.

11. The control method for a multi-drum washing machine according to claim 10, wherein when the background control program of the washing drum is retrieved, only the input control elements are used as input elements.

12. The control method for a multi-drum washing machine according to claim 10, wherein when the background control program of the washing drum is retrieved, only output control element are used as output elements.

13. The multi-drum washing machine according to claim 2, wherein the control panel comprises a power switch served as a loud control power switch.

14. The multi-drum washing machine according to claim 3, wherein the control panel composes a power switch served as a total control power switch.

15. The multi-drum washing machine according to claim 4, wherein the control panel comprises a power switch served as a total control power switch.

16. The multi-drum washing machine according to claim 5, wherein the control panel comprises a power switch served as a total control power switch.

17. The multi-drum washing machine according to claim 2, wherein one of the plurality of input control elements and a respective one of the plurality of output display elements are a same button.

18. The multi-drum washing machine according to claim 3, wherein one of the plurality of input control elements and a respective one of the plurality of output display elements are a same button.

19. The multi-drum washing machine according to claim 4, wherein one of the plurality of input control elements and a respective one of the plurality of output display elements are a same button.

20. The multi-drum washing machine according to claim 5, wherein one of the plurality of input control elements and a respective one of the plurality of output display dements are a same button.