CN112900022B - Washing machine drainage structure, washing machine and control method - Google Patents
Washing machine drainage structure, washing machine and control method Download PDFInfo
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- CN112900022B CN112900022B CN202110053868.8A CN202110053868A CN112900022B CN 112900022 B CN112900022 B CN 112900022B CN 202110053868 A CN202110053868 A CN 202110053868A CN 112900022 B CN112900022 B CN 112900022B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/44—Current or voltage
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- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention belongs to the field of washing machines, and particularly relates to a washing machine drainage structure, a washing machine and a control method. The drainage structure of the washing machine comprises a drainage channel, wherein the drainage channel comprises a first drainage channel and a second drainage channel, the water inlet ends of the first drainage channel and the second drainage channel are respectively communicated with a washing barrel of the washing machine, and the water outlet ends of the first drainage channel and the second drainage channel are respectively communicated with the outside of the washing machine; the first drainage channel is used for a normal drainage channel in the working process of the washing machine; the second drainage channel is used for an emergency drainage channel when the power is off in the working process of the washing machine; and the control module controls the on-off of the second drainage channel. The drainage structure can effectively solve the problem that the washing machine cannot drain water in time after power failure, and avoids the problem that the quality of clothes is influenced because the clothes are soaked for too long time due to the fact that the washing machine cannot drain water in time after power failure.
Description
Technical Field
The invention belongs to the field of washing machines, and particularly relates to a washing machine drainage structure, a washing machine and a control method.
Background
At present, along with the progress of life, people have higher and higher requirements on washing machines and have more and more requirements on functions of the washing machines. The invention provides an emergency drainage device and a control method, and particularly relates to an emergency drainage device which can not drain water in a washing machine in time when a washing machine is powered off suddenly during normal work, and can influence the quality of clothes when the washing machine is soaked for a long time. The conventional washing machine power-off drainage needs to be drained by manually pulling a switch, and manual drainage is drained from a drainage pipe in front of the washing machine, so that a floor is wetted, the experience of a user is influenced, and great troubles are brought to the user.
The control logic method can solve the troubles of users, and provides an emergency drainage device and a control method.
Patent No. CN107675440A discloses a drain valve and control method and washing machine, but this patent only has solved full-automatic washing machine and can't the drainage problem when the outage, needs manual drainage, can't realize automatic drainage when the outage.
Patent No. CN1536157A simply controls the drain pump discharge by using pulse number, and cannot realize automatic discharge in emergency of power failure.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a drainage structure, a washing machine and a control method, wherein the drainage structure can realize emergency automatic drainage when the washing machine is powered off.
In order to solve the above technical problems, a first object of the present invention is to provide a drainage structure of a washing machine, comprising
The water outlet end of the first water outlet channel is communicated with the outside of the washing machine; the first drainage channel is used for a normal drainage channel in the working process of the washing machine; the second drainage channel is used for an emergency drainage channel when the power is off in the working process of the washing machine;
and the control module controls the on-off of the second drainage channel.
Further optionally, the washing machine further comprises an electricity storage module, and the electricity storage module supplies power to the control module when the washing machine is powered off.
Further optionally, the first drain channel and the second drain channel are arranged in parallel.
Further optionally, a first drain valve is arranged on the first drain channel, and the first drain valve is used for opening and closing the first drain channel; and a second drain valve is arranged on the second drain channel and used for opening and closing the second drain channel.
Further optionally, the control module includes a main control board, a detection module and a pulse module;
when the washing machine is powered off in the working process, the detection module detects that the washing machine is powered off and then sends a power-off signal to the main control board, the main control board sends a control signal for controlling the second drain valve to be opened to the pulse module, the pulse module generates a pulse signal after receiving the control signal and sends the pulse signal to the second drain valve, and the second drain valve opens the drain valve after receiving the pulse signal.
The second purpose of the invention is to provide a washing machine with the drainage structure.
The third objective of the present invention is to provide a control method for the above washing machine, wherein when the washing machine is working normally, the water in the washing machine is controlled to be drained from the first drainage channel; when the power is cut off during the working process of the washing machine, the water in the washing machine is controlled to be drained from the second drainage channel.
Further optionally, in the working process of the washing machine, after the washing machine is detected to be powered off, the water level in the washing tub of the washing machine is detected before the second drainage channel is controlled to be conducted, when the water level in the washing tub is detected to reach the first preset water level, the second drainage channel is controlled to be conducted, and when the water level in the washing tub is detected to be lower than the first preset water level, the off state of the second drainage channel is maintained.
Further optionally, in the working process of the washing machine, after detecting that the washing machine is powered off, whether the first drainage channel is conducted or not is detected before the second drainage channel is controlled to be conducted, and if the first drainage channel is detected to be disconnected, the second drainage channel is controlled to be conducted; when the first drainage channel is detected to be conducted, the disconnection state of the second drainage channel is kept.
Further optionally, in the working process of the washing machine, after detecting that the washing machine is powered off, whether the washing machine is powered on again within a preset time is judged, if the washing machine is powered on again within the preset time, the disconnection state of the second drainage channel is kept, and if the washing machine is not powered on again within the preset time, the second drainage channel is controlled to be connected.
Further optionally, after detecting that the washing machine is powered up again, the second drainage channel is controlled to be disconnected.
Further optionally, after detecting that the washing machine is powered up again, determining whether to control the first drainage channel to be conducted according to a received user instruction.
Further optionally, when a re-washing instruction sent by a user is received, the first drainage channel is controlled to be disconnected; when receiving the washing finishing instruction from the user, the first drainage channel is controlled to be conducted according to the detected water level in the washing tub of the washing machine.
Further optionally, when it is detected that the water level in the washing tub is lower than a first preset water level, controlling the first drainage channel to be disconnected; when the water level in the washing tub is detected to be higher than or equal to a first preset water level, the first drainage channel is controlled to be conducted.
Further optionally, after receiving a re-washing instruction sent by the user, the water level in the washing tub of the washing machine is detected, and when the water level in the washing tub is detected to be lower than a second preset water level, the water inlet of the washing machine is controlled to reach the second preset water level
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the drainage structure can detect the power failure when the washing machine is powered off suddenly, and can supply a pulse to the second drainage valve, and the second drainage valve can drain water in time when being started, so that the problems that the soaking time of clothes is too long due to the fact that water is not drained in time after the power failure, the quality of the clothes is influenced, and a large amount of water is accumulated on a floor due to the fact that water is drained manually when the washing machine is powered off are solved. The drainage structure and the control logic can realize full automation of drainage, manual drainage of a user is not needed, waiting is not needed when the user wants to take out clothes, the manual drainage step is simplified, the time of the user is saved, and the user experience is improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: a drainage structure of an embodiment of the present invention;
FIG. 2: is a schematic structural diagram of a control module according to an embodiment of the present invention;
FIG. 3: is a control flow diagram of an embodiment of the present invention.
Wherein: 1-a second drain valve, 2-a pipeline connected with a drainage outlet of a sewer, 3-a pipeline connected with the interior of a barrel, 4-a first drain valve, 5-a main control board, 6-a detection template, 7-a pulse template, 8-a first drain channel and 9-a second drain channel.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides a drainage structure of a washing machine, which not only realizes the normal drainage function of the washing machine, but also realizes the emergency drainage function when the washing machine is powered off suddenly, thereby solving the problem that the full-automatic washing machine cannot drain water automatically under the condition of power off, and changing the drainage mode that the floor is accumulated with a large amount of water because manual drainage is needed when the current washing machine is powered off. The drainage structure of the embodiment comprises a drainage channel and a control module, wherein the drainage channel comprises a first drainage channel 8 and a first drainage channel 9, the water inlet ends of the first drainage channel 8 and the first drainage channel 9 are respectively communicated with a washing barrel of the washing machine, and the water outlet ends are respectively communicated with the outside of the washing machine; the first drain passage 8 is used for a normal drain passage in the working process of the washing machine; the first drainage channel 9 is used for an emergency drainage channel when the power is off in the working process of the washing machine; the control module controls the on-off of the first drainage channel 9. In order to ensure that the control module can work normally under the condition of power failure, the washing machine of the embodiment is provided with a small-sized power storage module which stores power under the condition that the washing machine is powered on and provides power required by normal work for the control module or other devices needing to work under the condition that the washing machine is powered off.
Preferably, the first drainage channel 8 and the first drainage channel 9 are arranged in parallel, as shown in fig. 1, water inlet ends of the first drainage channel 8 and the first drainage channel 9 are respectively communicated with the pipeline 3 connected with the washing tub, and water outlet ends of the first drainage channel 8 and the first drainage channel 9 are respectively communicated with the pipeline 2 connected with the sewer drainage outlet. The first drain passage 8 is provided with a first drain valve 4 for opening and closing the first drain passage 8, and the first drain passage 9 is provided with a second drain valve 1 for opening and closing the first drain passage 9. The first drain valve 4 comprises a first valve body, a first water inlet and a first water outlet are arranged on the first valve body, and when the first drain channel 8 is communicated, water flowing into the first drain channel 8 enters the first valve body through the first water inlet and then flows out of the first valve body through the first water outlet; the second drain valve 1 comprises a second valve body, a second water inlet and a second water outlet are formed in the second valve body, and when the first drain channel 9 is communicated, water flowing into the first drain channel 9 enters the second valve body through the second water inlet and then flows out of the second valve body through the second water outlet.
Further optionally, the control module includes a main control board 5, a detection module 6 and a pulse module 7, when the washing machine is powered off in the working process, the detection module 6 sends a power-off signal to the main control board 5 after detecting the power-off of the washing machine, the main control board 5 sends a control signal for controlling the second drain valve 1 to be opened to the pulse module 7, the pulse module 7 generates a pulse signal after receiving the control signal and sends the pulse signal to the second drain valve 1, and the second drain valve 1 opens the drain valve after receiving the pulse signal.
As the control flow chart shown in fig. 3, at the time of power-off of the washing machine, the detection module 6 can detect power-off at the same time and send a power-off signal, the power-off signal can reach the main control board 5, the main control board 5 can send a control signal for opening the second drain valve to the pulse module 7 after receiving the power-off signal, the pulse module 7 can immediately generate a pulse signal when receiving the control signal, the pulse signal can reach the second drain valve 1, the second drain valve 1 can immediately act to open the second drain valve 1 when receiving the pulse signal to discharge water in the washing tub, the washing machine operates again when waiting for power-on, and the water discharge function is realized when power-off.
When the washing machine is powered on, the detection module 6 detects power-on and sends a power-on signal, the power-on signal reaches the control panel 5, the control panel 5 sends a control signal for closing the second drain valve to reach the pulse module 6, the pulse module 6 can generate a power-on pulse, when the power-on pulse reaches the second drain valve 1, the second drain valve 1 can act and be immediately closed, and the washing machine enters a normal running state.
The following is a control method of the washing machine with the drainage structure of the embodiment, during the normal operation of the washing machine, controlling the water in the washing machine to be drained from the first drainage channel 8 when the washing machine is in normal operation; when the power is cut off during the operation of the washing machine, the water in the washing machine is controlled to be drained out of the first drain passage 9.
Further alternatively, since the power cut may occur at any stage during the operation of the washing machine, when the washing machine finishes draining water and water is not supplied, the power cut may be performed, and the water remaining in the washing tub may be small, and it may not be necessary to open the second drain valve 1 to drain water. Therefore, when detecting the power-off of the washing machine in the working process of the washing machine, the water level in the washing tub of the washing machine is also detected before the first water drainage channel 9 is controlled to be switched on, when the water level in the washing tub reaches the first preset water level, the first water drainage channel 9 is controlled to be switched on, and when the water level in the washing tub is detected to be lower than the first preset water level, the off state of the first water drainage channel 9 is kept. The first preset water level is the highest water level when no water is detected in the washing tub.
Further alternatively, since the power failure may occur at any stage during the operation of the washing machine, when the power failure occurs during the normal drainage of the washing machine, the first drainage valve 4 is already in the open state, and at this time, the first drainage channel 9 does not need to be controlled to be conducted even if the power failure occurs. Therefore, in the working process of the washing machine, after the power failure of the washing machine is detected, whether the first drainage channel 8 is conducted or not is detected before the first drainage channel 9 is controlled to be conducted, and if the first drainage channel 8 is detected to be disconnected, the first drainage channel 9 is controlled to be conducted; when the conduction of the first drain passage 8 is detected, the off state of the first drain passage 9 is maintained.
Further optionally, when the power of the washing machine is interrupted and the power is restored quickly in the working process of the washing machine, the damage of the state that water exists in the washing machine for a short time to the clothes is small, and therefore, for the condition that the power of the washing machine is restored quickly after the power is interrupted, the conduction of the first drainage channel 9 is not required to be controlled, so that whether the power of the washing machine is restored within the preset time or not is detected in the working process of the washing machine, if the power of the washing machine is restored within the preset time, the disconnection state of the first drainage channel 9 is kept, and if the power of the washing machine is not restored within the preset time, the conduction of the first drainage channel 9 is controlled. The preset time may be set in the control module at the time of factory shipment, or may be set by a user according to a requirement, for example, the preset time is set to 15 min.
Further alternatively, after detecting that the washing machine is powered up again, the first drainage channel 9 is controlled to be disconnected, the washing machine enters a normal operation state, and the drainage of the washing machine can be drained through the first drainage channel 8. The on-off of the first drainage channel 8 can be controlled by the same control module as the first drainage channel 9 or can be controlled separately from the first drainage channel 9.
Further alternatively, after detecting that the washing machine is powered up again, whether to control the first drain passage 8 to be conducted or not is determined according to the received user instruction. When a re-washing instruction sent by a user is received, the first water drainage channel 8 is controlled to be disconnected; when receiving a washing end instruction from a user, whether to control the first drain passage 8 to be conducted is determined according to the detected water level in the washing tub of the washing machine. When the water level in the washing tub is detected to be lower than a first preset water level, the first water drainage channel 8 is controlled to be disconnected; when detecting that the water level in the washing tub is higher than or equal to a first preset water level, controlling the first drainage channel 8 to be conducted.
When the washing machine is powered on again, the washing machine returns to normal operation, the user can choose to re-wash or finish washing, if the user chooses to re-wash, the water in the washing tub is discharged from the first water discharge channel 9 when the power is off, so the first water discharge channel 8 needs to be disconnected to re-feed water. If the user chooses to finish washing, whether the water in the washing barrel needs to be detected, if the water in the washing barrel is drained when the power is off, namely the water level in the washing barrel is detected to be lower than a first preset water level, the first water drainage channel 8 does not need to be controlled to drain water, and if the water in the washing barrel is not drained, the first water drainage channel 8 needs to be controlled to be conducted to drain the water in the washing barrel.
Further optionally, after a re-washing instruction sent by the user is received, the water level in the washing tub of the washing machine is detected, and when the water level in the washing tub is detected to be lower than a second preset water level, the washing machine is controlled to feed water to the second preset water level. When the user is powered on again to select to wash again, whether the water in the washing barrel reaches a second preset water level set by washing or rinsing needs to be considered, and if the water does not reach the second preset water level, water needs to enter the washing barrel; if the water level reaches the set water level (for example, when the power is restored after short-time power failure and the water in the washing barrel is not removed), water does not need to be fed at the moment, and the washing can be directly carried out.
It should be noted that, in the present embodiment, the control module, the water level detection device, the control valve open/close state detection device, the power-off duration monitoring device, and the like, which need to operate normally when the washing machine is powered off, are provided with power required for normal operation by the power storage module provided in the washing machine, which stores power when the washing machine is powered on and supplies power when the washing machine is powered off.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (15)
1. A drainage structure of a washing machine is characterized by comprising
The water outlet end of the first water outlet channel is communicated with the outside of the washing machine; the first drainage channel is used for a normal drainage channel in the working process of the washing machine; the second drainage channel is used for an emergency drainage channel when the power is off in the working process of the washing machine;
and the control module controls the on-off of the second drainage channel, when the washing machine is detected to be powered off in the working process of the washing machine, the control module also detects the water level in the washing barrel of the washing machine before controlling the conduction of the second drainage channel, when the water level in the washing barrel is detected to reach a first preset water level, the control module controls the conduction of the second drainage channel, when the water level in the washing barrel is detected to be lower than the first preset water level, the off state of the second drainage channel is kept, and the first preset water level is the highest water level when no water is detected in the washing barrel.
2. A drainage structure of a washing machine as claimed in claim 1, wherein the washing machine further comprises a power storage module, and the power storage module supplies power to the control module when the washing machine is powered off.
3. A drain structure of a washing machine as claimed in claim 1, wherein the first drain passage and the second drain passage are provided in parallel.
4. A drainage structure of a washing machine as claimed in claim 3, wherein a first drainage valve is provided on the first drainage passage, the first drainage valve being used to open and close the first drainage passage; and a second drain valve is arranged on the second drain channel and used for opening and closing the second drain channel.
5. A washing machine water discharge structure as claimed in any one of claims 1 to 4, wherein the control module comprises a main control panel, a detection module and a pulse module;
when the washing machine is powered off in the working process, the detection module detects that the washing machine is powered off and then sends a power-off signal to the main control board, the main control board sends a control signal for controlling the second drain valve to be opened to the pulse module, the pulse module generates a pulse signal after receiving the control signal and sends the pulse signal to the second drain valve, and the second drain valve opens the drain valve after receiving the pulse signal.
6. A washing machine having the drain structure of any one of claims 1 to 5.
7. A control method of a washing machine as claimed in claim 6, wherein the water in the washing machine is controlled to be discharged from the first water discharge passage in normal operation of the washing machine; when the power is cut off during the working process of the washing machine, the water in the washing machine is controlled to be drained from the second drainage channel.
8. The control method of a washing machine according to claim 7, wherein the water level in the tub of the washing machine is detected before the second drain passage is controlled to be turned on after detecting that the washing machine is powered off during the operation of the washing machine, the second drain passage is controlled to be turned on when detecting that the water level in the tub reaches a first preset water level, and the off state of the second drain passage is maintained when detecting that the water level in the tub is lower than the first preset water level.
9. The control method of the washing machine as claimed in claim 7, wherein after detecting the power-off of the washing machine during the operation of the washing machine, it is further detected whether the first drain passage is conducted before controlling the conduction of the second drain passage, and if it is detected that the first drain passage is disconnected, the conduction of the second drain passage is controlled; when the first drainage channel is detected to be conducted, the disconnection state of the second drainage channel is kept.
10. The control method of a washing machine according to claim 7, wherein after detecting the power failure of the washing machine during the operation of the washing machine, it is determined whether the washing machine is powered back within a preset time, if the power is powered back within the preset time, the off state of the second drain passage is maintained, and if the power is not powered back within the preset time, the second drain passage is controlled to be turned on.
11. A control method of a washing machine as claimed in any one of claims 7 to 10, wherein the second drain passage is controlled to be disconnected after detecting that the washing machine is powered up again.
12. The control method of a washing machine as claimed in claim 11, wherein when it is detected that the washing machine is powered up again, whether to control the first drain passage to be turned on is determined according to a received user command.
13. The control method of a washing machine according to claim 12, wherein the first drain passage is controlled to be disconnected when a re-washing command issued by a user is received; when receiving the washing finishing instruction from the user, the first drainage channel is controlled to be conducted according to the detected water level in the washing tub of the washing machine.
14. The control method of a washing machine as claimed in claim 13, wherein the first drain passage is controlled to be cut off when it is detected that the water level in the washing tub is lower than a first preset water level; when the water level in the washing tub is detected to be higher than or equal to a first preset water level, the first drainage channel is controlled to be conducted.
15. The control method of a washing machine as claimed in claim 13, wherein the water level in the washing tub of the washing machine is detected after receiving a re-washing command from a user, and the water inlet of the washing machine is controlled to a second preset water level when the water level in the washing tub is detected to be lower than the second preset water level.
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| CN204780333U (en) * | 2015-06-12 | 2015-11-18 | 江苏雷利电机股份有限公司 | Washing machine's urgent drainage device |
| CN206282225U (en) * | 2016-10-20 | 2017-06-27 | 上海传英信息技术有限公司 | Hardware power-down circuit |
| CN111519386A (en) * | 2019-02-01 | 2020-08-11 | 吉尔宝有限公司 | Auxiliary power supply of washing machine |
| CN212326328U (en) * | 2020-03-30 | 2021-01-12 | 青岛海尔洗碗机有限公司 | Dish washer with emergency drainage device |
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