CN114164615A

CN114164615A - Washing machine

Info

Publication number: CN114164615A
Application number: CN202010953176.4A
Authority: CN
Inventors: 许升; 吕佩师; 赵志强
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2022-03-11
Also published as: WO2022052819A1

Abstract

The invention discloses a washing machine, comprising: an inner tub for independently containing washing water when washing clothes; a non-contact heating module for non-contact heating the washing water in the inner cylinder; the water quantity acquisition module is used for acquiring the water inlet quantity of the washing machine; a temperature acquisition module for acquiring an initial water temperature of the washing water; and the control module calculates the heating temperature of the washing water in the inner barrel according to the power of the non-contact heating module and the acquired initial water temperature, water inflow and heating time. The washing machine solves the problem that a temperature detection device cannot be arranged in the inner barrel of the washing machine with the non-porous inner barrel to detect the temperature of the washing water in the heating process, and the real-time heating temperature of the washing water in the inner barrel is calculated through a water heating formula in the heating process, so that the heating process of the washing water is controlled to reach the set target heating temperature, the washing effect is ensured, and the structure of the washing machine is simplified.

Description

Washing machine

Technical Field

The invention relates to the technical field of washing equipment, in particular to a hole-free inner barrel washing machine with a water heating function.

Background

The washing machine is one of household appliances which are commonly used in daily life. The washing machine brings convenience to the life of people. In the prior art, an outer barrel contains water, an inner barrel rotates to wash, holes are formed in the wall of the inner barrel and used for feeding washing water into the inner barrel or dewatering clothes in the inner barrel, the washing water flows between the inner barrel and the outer barrel for a long time, so that dirt and scale can be accumulated between interlayers of the inner barrel and the outer barrel, a large amount of bacteria can be propagated, secondary pollution is caused to the clothes, the health of consumers is seriously threatened, and useless water waste is caused by filling water between the interlayers between the inner barrel and the outer barrel, so that people design a non-porous inner barrel washing machine.

Along with the continuous improvement of the life quality of people, the requirement of people on the washing effect of the washing machine is higher and higher. Therefore, users generally heat the washing water during the washing process, which not only can improve the dirt-removing ability of the detergent, but also can sterilize and disinfect the clothes with the heated washing water, so that the washing machine with the non-porous inner cylinder and the water heating function is favored. The heating device is arranged in the outer cylinder, the washing water is heated to a set temperature value by controlling the heating device, and in the process, the temperature of the washing water needs to be detected, so that the washing water can be heated to the set temperature value.

The general washing machine obtains the heating temperature of the washing water through a temperature sensor arranged in an outer cylinder, however, the washing machine with the non-porous inner cylinder has no water between the inner cylinder and the outer cylinder, and the heating temperature of the washing water in the inner cylinder is difficult to detect through the temperature sensor arranged on the outer cylinder. And because the inner drum of the imperforate washing machine is rotatably arranged, a temperature detection device cannot be installed in the inner drum, and the heating temperature of the washing water cannot be detected and obtained through the temperature detection device.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides the washing machine which obtains the real-time heating temperature of the washing water in the inner cylinder through calculation of a water heating formula in the heating process, and solves the problem that a temperature detection device cannot be installed in the inner cylinder of a non-porous inner cylinder washing machine to detect the heating temperature of the washing water.

In order to achieve the purpose, according to one aspect of the invention, the following technical scheme is adopted:

a washing machine comprising:

an inner tub for independently containing washing water when washing clothes;

a non-contact heating module for non-contact heating the washing water in the inner cylinder;

the water quantity acquisition module is used for acquiring the water inlet quantity of the washing machine;

a temperature acquisition module for acquiring an initial water temperature of the washing water;

and the control module calculates the heating temperature of the washing water in the inner barrel according to the power of the non-contact heating module and the acquired initial water temperature, water inflow and heating time.

Further, the water heater also comprises a processing module which comprises a calculating unit, wherein the calculating unit is used for calculating the heating formula T ═ P × (T)/C × (m + T) of the water according to the heating formula T ═ P × (T)/C × (m + T) of the water₀Calculating the heating temperature T of the washing water at the heating time T, wherein C is the specific heat capacity of the water, and P is the power of the non-contact heating module;

the calculating unit calculates the heating temperature T of the water in the inner barrel in real time or at intervals after the heating module starts to heat; alternatively, the calculation means sets t after the heating module starts heating₁After the time, the heating temperature T of the water in the inner barrel is calculated in real time/at intervals.

Further, the processing module further includes a judging unit for judging the current heating temperature T of the washing water and the target heating temperature T of the washing water_TargetThe size of (d);

when T is judged to be T ═ T_TargetOr T is_TargetWhen the difference value with T is less than or equal to the set value, a signal is fed back to the control module, and the control module controls the heating module to stop heating.

Further, the washing machine further comprises a display module connected with the processing module, the display module is installed on a display panel of the washing machine, and the display module can display the heating temperature T of the water calculated by the calculating unit in real time or once on the display panel at intervals of a certain time.

Furthermore, a trigger unit for triggering the processing module to work is arranged on the control panel of the washing machine, the trigger unit is respectively connected with the processing module and the control module, and the control module controls the processing module to work and calculates and displays the heating temperature T after receiving an operation instruction of the trigger unit.

Further, the temperature acquisition module comprises a temperature adjusting module which is in communication connection with the intelligent faucet and/or the water heater to obtain the initial water temperature of the inlet water of the washing machine;

the temperature calling module feeds back the called water temperature value of the intelligent faucet and/or the water heater to the control module to serve as the initial water temperature of the water entering the washing machine.

Further, the temperature acquisition module comprises a temperature detection device for directly detecting the initial water temperature of the inlet water of the washing machine, and the temperature detection device is a temperature sensor arranged at the inlet valve of the washing machine or on the water inlet pipeline.

Further, the washing machine further comprises an outer barrel and a shell, wherein the outer barrel is coaxially arranged with the inner barrel, the shell is arranged outside the outer barrel, and the non-contact heating device is an electromagnetic heating device arranged on the outer barrel or the shell.

Furthermore, the water quantity acquisition module is a flow sensor arranged on a water inlet of a water inlet pipe of the washing machine, and the washing machine directly detects the water inflow of the washing machine through the flow sensor;

or the water quantity acquisition module is a weight sensor which is arranged on a bottom foot of the washing machine, a shell of the washing machine, a position for installing a suspender on an outer cylinder of the washing machine or on the suspender of the washing machine, and the washing machine indirectly acquires the water inflow of the washing machine through the weight sensor;

or the water quantity acquisition module is a water level sensor arranged on the control panel seat or the outer barrel, and the washing machine indirectly acquires the water inflow of the washing machine through the water level sensor;

or, the water yield acquisition module comprises a flow calling module for communication connection to obtain the water inflow of the washing machine, and the flow calling module can call the water outflow of the intelligent faucet or the water consumption value of the intelligent water meter in the water inflow process and feed back the water outflow or the water consumption value to the control module to serve as the water inflow of the washing machine.

Further, the washing machine also comprises a voice module which is arranged at the local end of the washing machine; or the washing machine is in communication connection with an intelligent terminal, and the voice module is arranged on the intelligent terminal;

the voice module can receive voice instruction information sent by a user and send the voice instruction information to the control module of the washing machine, and the control module of the washing machine can control the work of each module according to the received voice instruction information.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. the washing machine provided by the invention solves the problem that a temperature detection device cannot be arranged in the inner barrel of the washing machine with the non-porous inner barrel to detect the temperature of the washing water in the heating process, and in the heating process, the water inflow of the washing machine acquired by the water amount acquisition module, the initial water temperature of the washing water acquired by the temperature acquisition module and the heating time can be calculated by a water heating formula to obtain the heating temperature of the washing water in the inner barrel, so that the heating process of the washing water is controlled to reach the set target heating temperature, the washing effect is ensured, and the structure of the washing machine is simplified.

2. The invention provides a washing machine, wherein a judging unit of a processing module judges that the calculated heating temperature T of the washing water reaches a target heating temperature T_TargetOr close to the target heating temperature T_TargetDuring, feedback signal to control module, control module control heating module stop heating avoids heating temperature to hang down excessively or too high, influences the washing effect or leads to the fact the damage to the washing clothing, promotes washing efficiency.

3. According to the washing machine provided by the invention, the display module displays the heating temperature T of the washing water obtained by calculation in real time or on the display panel at regular intervals in the heating process, so that a user can conveniently and visually obtain the heating temperature information, and the use experience of the user is improved.

4. According to the washing machine provided by the invention, the temperature acquisition module can be used for calling the water temperature value of the intelligent faucet and/or the water heater as the initial water temperature of the water entering the washing machine, the initial water temperature is not required to be detected and acquired through the temperature sensor, the structure and the control program of the washing machine are simplified, the initial water temperature can be acquired more intelligently and rapidly, and the washing intelligence of the washing machine is improved.

5. According to the washing machine provided by the invention, the electromagnetic heating device is adopted to heat the inner barrel, so that the washing water in the inner barrel is heated, the problem that the washing water in the washing machine with the non-porous inner barrel is difficult to heat is solved, the adopted non-contact heating module is more flexible and unlimited in arrangement position, easy to install and capable of improving the assembly efficiency, and the washing machine is simple in structure, high in heating efficiency and capable of improving the practical popularization of products.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a washing machine according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another embodiment of a washing machine according to a first embodiment of the present invention;

FIG. 3 is a schematic view of a drum washing machine according to a second embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a third electromagnetic heating device according to an embodiment of the present invention;

FIG. 5 is a schematic view of a four-drum washing machine according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a drum washing machine according to a fifth embodiment of the present invention;

fig. 7 is a first schematic perspective view of a clothes lifting device for a washing machine according to a fifth embodiment of the present invention;

fig. 8 is a schematic perspective view of a second clothes lifting device for a washing machine according to a fifth embodiment of the present invention;

fig. 9 is a front view of a laundry lifting device for a washing machine according to a fifth embodiment of the present invention;

fig. 10 is a sectional view of a laundry lifting device for a washing machine according to a fifth embodiment of the present invention, taken along the plane a-a of fig. 9;

fig. 11 is a sectional view of a laundry lifting device for a washing machine according to a fifth embodiment of the present invention, taken along the plane B-B in fig. 9 (first embodiment);

fig. 12 is a sectional view of a laundry lifting device for a washing machine according to a fifth embodiment of the present invention, taken along the plane B-B in fig. 9 (embodiment two);

fig. 13 is a schematic view of a drum washing machine according to a sixth embodiment of the present invention;

fig. 14 is a partially enlarged view (pressure-released state) of fig. 13 of the drum washing machine according to the sixth embodiment of the present invention;

fig. 15 is a partially enlarged view (pressurized state) of fig. 13 of a drum washing machine according to a sixth embodiment of the present invention;

fig. 16 is a schematic view of a drum washing machine according to a seventh embodiment of the present invention;

fig. 17 is an enlarged partial view of fig. 16 (a pressure release state in the first embodiment) of a drum washing machine according to a seventh embodiment of the present invention;

fig. 18 is a partially enlarged view of fig. 16 of a drum washing machine according to a seventh embodiment of the present invention (pressurized state of the first embodiment);

fig. 19 is an enlarged view of a part of fig. 16 of a drum washing machine according to a seventh embodiment of the present invention (a pressure release state in the second embodiment);

fig. 20 is a partially enlarged view of fig. 16 of the drum washing machine according to the seventh embodiment of the present invention (pressurized state of the second embodiment).

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, 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," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 present invention will be described in further detail with reference to examples.

as shown in fig. 1 to 20, the present embodiment provides a drum washing machine with a non-porous inner drum front opening structure, which has a simple structure, and can greatly reduce the amount of washing water of the washing machine without filling washing/rinsing water between the inner drum and the outer drum. The possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided. The user health and user experience are greatly improved, and water resources are greatly saved.

The drum washing machine of the present embodiment has a housing 19, and the housing 19 includes: a top deck 2, a front panel, a back panel and a bottom panel. The bottom plate is provided with feet 9 for supporting the whole washing machine. The outer casing 19 has an outer cylinder 18 inside, and an inner cylinder 17 is coaxially disposed inside the outer cylinder 18. The outer cylinder 18 is mainly used for collecting the drainage of the inner cylinder 17 and the drainage of the inner cylinder 17 by high-speed centrifugal dehydration. The drum 17 rotates, preferably with lifting ribs, and is continuously lifted to drop and beat the laundry, so as to wash the laundry. The inner barrel 17 is of non-porous construction. The outer cylinder 18 has a central mounting hole to which the bearing 12 is fixedly mounted. An inner drum shaft 13, which is fixedly connected to the inner drum 17, passes through the bearing 12 shown and is connected to a drive motor 16. An openable/closable inner cylinder door 6 is installed on a front cylinder opening of the inner cylinder 17, thereby realizing that the inner cylinder 17 is of a sealed cabin structure. The housing 19 is provided with an openable/closable door 5.

Example one

As shown in fig. 1 to 5, the present embodiment provides a washing machine in which a heating temperature of washing water can be obtained through calculation without detection by a temperature detecting device in a heating process of the washing machine.

Specifically, as shown in fig. 1 to 4, the washing machine includes: the inner cylinder 17 independently holds washing water when washing clothes, so that the problems of dirt accumulation and bacteria breeding caused by the fact that washing water is accumulated and overflowed outside the inner cylinder 17 are solved; a non-contact heating module for non-contact heating the washing water in the inner cylinder; the water quantity acquisition module is used for acquiring the water inlet quantity of the washing machine; a temperature acquisition module for acquiring an initial water temperature of the washing water; and the control module calculates the heating temperature of the washing water in the inner barrel according to the power of the non-contact heating module and the acquired initial water temperature, water inflow and heating time.

The washing machine provided by the embodiment solves the problem that a temperature detection device cannot be installed in the inner barrel of the washing machine with the non-porous inner barrel to detect the temperature of washing water in the heating process. The water inlet quantity of the washing machine is acquired by the power and water quantity acquisition module according to the non-contact heating module, the initial water temperature and the heating time of the washing water are acquired by the temperature acquisition module, and the heating temperature of the water can be obtained by calculating the water heating formula, so that the heating process of the washing water is controlled to reach the set target heating temperature, the washing effect is ensured, and the structure of the washing machine is simplified.

Further, the device also comprises a processing dieA block, the processing module may be a CPU processor, the processing module comprising a calculation unit, the calculation unit being based on a water heating formula T ═ P ═ T)/C ═ m + T₀And calculating the heating temperature T of the washing water at the heating time T, wherein C is the specific heat capacity of the water, and P is the power of the non-contact heating module.

The non-contact heating module in this embodiment may be a heating device with multiple levels of power, during the heating process, the washing machine may select the heating power of the corresponding level according to the target heating temperature or the amount of the washing water to heat, and the P value also varies according to the power selected by the washing machine.

Because the washing machine provided in the embodiment is a hole-free inner-barrel washing machine, no washing water exists between the inner barrel and the outer barrel, and therefore, the washing water in the inner barrel cannot be heated in a mode of heating the washing water between the inner barrel and the outer barrel. And because the inner drum 17 of the washing machine is in a rotating state all the time in the working process, and the contact type heating device is installed on the inner drum 17 to heat the washing water, which is difficult to realize, the non-contact type heating device is adopted in the embodiment to realize the purpose of heating the washing water in the non-porous inner drum 17, and the non-contact type heating device does not need to be contacted with the washing water in the inner drum 17 or the inner drum 17 in the heating process.

Further, the calculating unit calculates the heating temperature T of the water in the inner barrel in real time or at intervals after the heating module starts to heat; alternatively, the calculation means sets t after the heating module starts heating₁After the time, the heating temperature T of the water in the inner barrel is calculated in real time/at intervals.

In the above aspect, the target heating temperature T_TargetThe higher the set t₁The longer the time is, the workload of the processing module is reduced, and the energy consumption is reduced.

Further, the processing module further includes a judging unit for judging the current heating temperature T of the washing water and the target heating temperature T of the washing water_TargetThe size of (d); when T is judged to be T ═ T_TargetOr T is_TargetWhen the difference value with T is less than or equal to the set value, feeding back a signal to the control module, and controlling the addition by the control moduleThe thermic module ceases heating.

In the washing machine provided in the present embodiment, the determination unit of the processing module determines that the calculated heating temperature T of the washing water reaches the target heating temperature T_TargetOr when being close to the target heating temperature, the feedback signal is sent to the control module, the control module controls the heating module to stop heating, the heating temperature is prevented from being too low or too high, the washing effect is prevented from being influenced or the clothes to be washed are prevented from being damaged, and the washing efficiency is improved.

The washing machine provided in the embodiment displays the display module in real time in the heating process, for example, the display module can display the display in basic units of minutes, so that the user can visually refer to the display module. Or the heating temperature T of the washing water obtained by calculation is displayed on the display panel at regular intervals, so that the energy consumption is reduced and the use experience of the user is improved while the user can visually acquire the heated temperature information.

Furthermore, a trigger unit for triggering the processing module to work is arranged on the control panel of the washing machine, the trigger unit can be an operation key or a touch switch, the trigger unit is respectively connected with the processing module and the control module, and the control module controls the processing module to work and calculates and displays the heating temperature T after receiving an operation instruction of the trigger unit.

By adopting the scheme, in the heating process, if a user wants to check the heating temperature T at any time, the user can control the trigger unit to trigger the processing module to work, calculate and display the heating temperature T, and meet the diversified requirements of the user.

Further, in one embodiment, the temperature obtaining module comprises a temperature adjusting module which is used for communication connection to obtain the initial water temperature of the inlet water of the washing machine, and the temperature adjusting module is in communication connection with the intelligent faucet and/or the water heater; the temperature calling module feeds back the called water temperature value of the intelligent faucet and/or the water heater to the control module to serve as the initial water temperature of the water entering the washing machine.

According to the scheme, the temperature acquisition module can be used for calling the water temperature value of the intelligent faucet or the water heater or the intelligent water meter to serve as the initial water temperature of water entering the washing machine, the initial water temperature is not required to be obtained through detection of the temperature sensor, the structure and the control program of the washing machine are simplified, the initial water temperature can be acquired intelligently and rapidly, and the washing intelligence of the washing machine is improved.

Or the temperature calling module can respectively call the water temperature value of the intelligent faucet to be T_{Water tap}And regulating the water temperature value of the water heater to be T_{Water heater}And fed back to the control module, which calculates the initial water temperature T of the washing machine₀＝(T_{Water tap}+T_{Water heater}) And/2, calculating the average value of the two values to be used as the initial water temperature of the washing machine, improving the accuracy of the initial water temperature and reducing errors.

Or in another embodiment, the temperature acquisition module comprises a temperature detection device for directly detecting the initial water temperature of the inlet water of the washing machine, and the temperature detection device is a limit temperature sensor arranged at the inlet valve of the washing machine or on the inlet pipeline so as to acquire the initial water temperature T of the inlet water of the washing machine₀。

In the washing machine provided in the above embodiment, only the temperature sensor is required to be installed at the water inlet valve or the water inlet pipeline to detect and obtain the initial water temperature, and in the heating process of the washing machine, the temperature sensor installed at the inner tub or other parts is not required to detect and obtain the heating water temperature of the washing machine, so that the structure of the washing machine is simplified.

Further, as shown in fig. 3, the washing machine further includes an outer tub 18 disposed coaxially with the inner tub 17 and an outer casing 18 disposed outside the outer tub, and the non-contact heating module is an electromagnetic heating device 33 disposed on the outer tub 18 or the outer casing 19.

The inner barrel 17 is heated through the electromagnetic heating device 33, so that the washing water in the inner barrel 17 is heated, the adopted non-contact electromagnetic heating module is more flexible and unlimited in setting position, easy to install and capable of improving the assembly efficiency, and the electromagnetic heating module is simple in structure and high in heating efficiency, and practical popularization of products is improved.

The electromagnetic heating device 33 is disposed on the outer tub 18, the electromagnetic heating device 33 may also be disposed on the casing 19 of the washing machine, and preferably, as shown in fig. 3, the electromagnetic heating device 33 is disposed on the inner wall of the outer tub 18. Adopt electromagnetic heating device 33 to heat inner tube 17, and then heat the clothing in the inner tube 17 and the water in the inner tube 17, simple structure, assembly efficiency is high, has improved the practical popularization of product.

At least part of the structure of the inner cylinder 17 is made of metal material, so that the eddy current effect is generated by the magnetic field generated by the electromagnetic heating device 33 to generate heat, the heating heat is transferred to the water in the inner cylinder 17, and the water temperature is improved to enhance the washing effect of the washing machine.

Further, the water inlet amount of the washing machine in this embodiment can be obtained by the following methods:

the first mode is as follows:

the water quantity acquisition module is a flow sensor arranged on a water inlet of a water inlet pipe of the washing machine, and the washing machine directly detects the water inflow of the washing machine through the flow sensor.

Washing machine obtains the washing machine inflow through flow sensor in this scheme, includes following step: the washing machine starts to feed water; a flow sensor acquires inflow Q; the water inlet is finished, and the washing machine obtains the water inlet time t_{Inflow water}(ii) a Calculating the water inflow m of the washing machine to obtain Q t_{Inflow water}。

Adopt flow sensor in this scheme, the precision of measurement is higher relatively, and the inflow m that obtains at last calculates is Q t_{Inflow water}And also more accurate. The flow sensor is arranged at the water inlet of the water inlet pipe of the washing machine, and the washing machine realizes flow detection in the water inlet process, so that more accurate water inflow m is obtained.

The second mode is as follows:

the water quantity acquisition module is a weight sensor which is arranged on a bottom foot of the washing machine, a shell of the washing machine, a position for installing a suspender on an outer cylinder of the washing machine or on the suspender of the washing machine, and the washing machine indirectly acquires the water inflow of the washing machine through the weight sensor.

The washing machine obtains the water inflow of the washing machine through the weight sensor, and the method comprises the following steps: the washing machine obtains the weight m in the barrel before water inlet₁(ii) a The washing machine starts to feed water; after water is fed, the washing machine obtains the weight m in the bucket₂(ii) a Calculating the water inflow m of the washing machine to be m₂-m₁. The weight sensor is a pressure sensor, and the pressure sensor is arranged on one or more of the bottom feet of the washing machine, the position for installing the suspender on the washing machine box body, the position for installing the suspender on the washing machine outer barrel and the inside of the suspender of the washing machine.

In order to avoid the influence of uneven weight distribution in the barrel on the detection result of the pressure sensor and ensure the detection accuracy of the pressure sensor as far as possible, the pressure sensors of the embodiment are at least two and are arranged in a central symmetry manner on the central axis of the outer barrel of the washing machine, and m is₁、m₂And respectively taking the average value of the measurement results of the pressure sensors.

In the above scheme, adopt weight sensor direct measurement inflow m, the testing result is more direct, especially to the washing machine that has the function of weighing, can directly utilize its weight sensor, realizes the detection to inflow m through the improvement to the procedure, has strengthened the practicality of weight sensor on washing machine.

The third mode is as follows:

the water quantity acquisition module is a water level sensor arranged on the control panel seat or the outer barrel, and the washing machine indirectly acquires the water inflow of the washing machine through the water level sensor.

The washing machine obtains the water inflow of the washing machine through the water level sensor, and comprises the following steps: the washing machine starts to feed water; after water inflow is finished, the washing machine acquires a water level V in the drum; and calculating to obtain the water inflow m of the washing machine as rho V.

The present level sensor of washing machine of this scheme adoption can realize the detection to inflow m, consequently, level sensor's precision need be guaranteed to ensure the accuracy of testing result, can regard as when level sensor is enough accurate, washing machine's inflow m is also enough accurate, and the T that the final calculation obtained is also more accurate.

The fourth mode is that:

the water quantity acquisition module comprises a flow calling module which is used for communication connection to obtain the water inflow of the washing machine, and the flow calling module can call the water outflow of the intelligent faucet or the water consumption value of the intelligent water meter in the water inflow process and feed back the water outflow or the water consumption value to the control module to be used as the water inflow of the washing machine.

In the scheme, the water yield of the intelligent faucet or the water consumption value of the intelligent water meter in the water inlet process is called as the water inlet flow value of the washing machine through the flow calling module, the water inlet flow is not required to be detected through the flow sensor, the structure and the control program of the washing machine are simplified, the water inlet flow can be intelligently and rapidly obtained, and the washing intelligence of the washing machine is improved.

Furthermore, the washing machine also comprises a voice module which is arranged at the home terminal of the washing machine; or the washing machine is in communication connection with an intelligent terminal, and the voice module is arranged on the intelligent terminal; the voice module can receive voice instruction information sent by a user and send the voice instruction information to the control module of the washing machine, and the control module of the washing machine can control the work of each module according to the received voice instruction information.

The washing machine that provides in above-mentioned embodiment can realize the heating temperature value that control calculation shows the washing water through voice control's mode at washing machine's this terminal or intelligent terminal remote control washing machine through voice control's mode, and more artificial intelligence is controlled simple and conveniently, need not user manual operation, promotes user and uses experience.

The present embodiment also provides a control method of the above washing machine:

the control method of the washing machine includes: the washing machine receives a water heating signal, and the non-contact heating module heats the washing water in the inner barrel 17; the water quantity acquisition module acquires the water inflow m of the washing machine, and the temperature acquisition module acquires the initial temperature T of the washing water₀Time of dayThe calculation module obtains heating time t; heating water to obtain the formula P T-C m (T-T)₀) And calculating the heating temperature T of the washing water at the heating time T, wherein C is the specific heat capacity of the water, and P is the power of the non-contact heating module.

Further, the washing machine determines that the heating temperature T of the washing water reaches the target heating temperature T during the heating operation_TargetWhen the temperature is high, heating is stopped.

Further, the washing machine is according to a water heating formula: t ═ P × T)/(C × m) + T₀And calculating the heating temperature T of the washing water during the heating time T, and displaying the heating temperature T in real time or displaying the heating temperature T once every certain time.

Further, the water inflow of the washing machine can be obtained by the following three methods:

the first method comprises the following steps:

the water inlet of the water inlet pipe of the washing machine is provided with a flow sensor, and the washing machine obtains the water inflow m of the washing machine through the flow sensor: the washing machine starts to feed water; a flow sensor acquires inflow Q; the water inlet is finished, and the washing machine obtains the water inlet time t_{Inflow water}(ii) a Calculating the water inflow m of the washing machine to obtain Q t_{Inflow water}；

The washing machine is according to the water heating formula: t ═ P × T)/(C × Q × T_{Inflow water})+T₀Calculating the heating temperature T of the washing water during the heating time T; when the heating temperature T of the washing water reaches the target heating temperature T_TargetWhen the temperature is high, heating is stopped.

The second method comprises the following steps:

the washing machine obtains the water inflow m of the washing machine through the weight sensor: the washing machine obtains the weight m in the barrel before water inlet₁(ii) a The washing machine starts to feed water; after water is fed, the washing machine obtains the weight m in the bucket₂(ii) a Calculating the water inflow m of the washing machine to be m₂-m₁(ii) a The washing machine is according to the water heating formula: t ═ P ═ T)/(C ═ m₂-m₁))+T₀Calculating the heating temperature T of the washing water during the heating time T; when the heating temperature T of the washing water reaches the target heating temperature T_TargetWhen the temperature is high, heating is stopped.

Furthermore, the weight sensor is a pressure sensor and is arranged on one or more of a bottom foot of the washing machine, a position for installing the suspender on the washing machine box body, a position for installing the suspender on the washing machine outer barrel and the inside of the suspender of the washing machine.

Furthermore, the pressure sensors are arranged at least two and are arranged in a central symmetry mode by using the central axis of the outer barrel of the washing machine, and m is₁、m₂And respectively taking the average value of the measurement results of the pressure sensors.

The third method comprises the following steps:

the washing machine obtains the water inflow m of the washing machine through the water level sensor: the washing machine starts to feed water; after water inflow is finished, the washing machine acquires a water level V in the drum; calculating to obtain the water inflow m of the washing machine as rho V; the washing machine is according to the water heating formula: t ═ P × T)/(C × ρ × V) + T₀Calculating the heating temperature T of the washing water during the heating time T; when the heating temperature T of the washing water reaches the target heating temperature T_TargetWhen the temperature is high, heating is stopped.

Example two

In the first embodiment, how to obtain the initial water temperature T by the detection of the temperature detection device₀A detailed description will be given.

Referring to fig. 3, the present embodiment provides a washing machine including: an inner tub 17 for independently containing washing water when washing laundry; a water intake system in communication with the inner barrel 17; and a temperature detection device (not shown in the figure) arranged in the water inlet system for detecting the temperature of the inlet water. The temperature detection device arranged in the water inlet system can detect the temperature of inlet water in real time, and the control system of the washing machine can control the water temperature in the inner barrel 17, so that a better washing effect is achieved.

In the above solution, the washing machine further comprises a flow detection device (not shown in the figure) disposed in the water inlet system for detecting the water inlet amount; preferably, the temperature detection device is a temperature sensor, and the flow detection device is a flow sensor. The water inflow into the inner barrel 17 is measured by the flow sensor, so that a control system of the washing machine can control the water amount in the inner barrel 17 to achieve a good washing effect, and the flow sensor monitors the flow of the water entering the inner barrel 17 in real time. The embodiment adopts the flow sensor to solve the problem of water inflow of the drum washing machine with the non-porous inner drum according to the set water inflow, ensures the washing effect, has simple structure and is convenient to control.

The water inlet system comprises a water inlet pipeline 36 communicated with the inside of the inner barrel 17, and the temperature detection device and the flow detection device are respectively arranged in the water inlet pipeline 36.

Preferably, the water inlet system further comprises a water inlet valve 20 arranged on the water inlet pipeline, the flow sensor monitors the flow rate of the water entering the inner barrel 17 in real time, and the water inlet valve 20 is closed when the set water inlet amount is reached, so that the water entering is completed. The temperature detection device and the flow rate detection device are integrally assembled with the water inlet valve 20, and the three are assembled into a whole and then installed, so that the installation steps are reduced, and the assembly efficiency is improved.

In this embodiment, the washing machine further includes an outer cylinder 18 sleeved outside the inner cylinder 17 and coaxially arranged with the inner cylinder 17, and a housing 19 arranged outside the outer cylinder 18, wherein the electromagnetic heating device 33 is arranged on the outer cylinder 18 or the housing 19; preferably, the electromagnetic heating device 33 is disposed on the inner wall of the outer cylinder 18. Adopt electromagnetic heating device 33 to heat inner tube 17, and then heat the clothing in the inner tube 17 and the water in the inner tube, simple structure, assembly efficiency is high, has improved the practical popularization of product.

In order to ensure the accuracy of temperature measurement, the initial water temperature t in the inner cylinder can be obtained by adopting an averaging mode₀Specifically, the initial water temperature t₀＝(t₁+t₂+t₃+t₄+, tn)/n, wherein n is more than or equal to 3; t is t₁And tn is different water temperature values detected by the temperature detection device at different time in the water inlet process of the washing machine.

Preferably, the temperature detecting means detects the initial water temperature value once every certain time interval, and further increases the measured initial water temperature t₀The accuracy of (2) and (3) avoids the large deviation between the water temperature value measured in the centralized time and the actual average water temperature value.

When washing clothesWhen the machine executes the water heating program, the control unit of the washing machine detects the initial temperature result of the inlet water according to the temperature detection device and obtains the inlet water quantity and the heating time of the washing machine, and the washing machine is according to the water heating formula: t ═ P × T)/(C × m) + T₀Obtaining the heating temperature of the water, and judging that the calculated heating temperature T of the washing water reaches the target heating temperature T_TargetWhen the heating is stopped, the heating temperature of the electromagnetic heating device is prevented from being too high, and the electromagnetic heating device is not switched off in time, so that the clothes are damaged and certain potential safety hazards are caused. Or the heating temperature is too low, which affects the washing effect. In addition, the heating temperature value obtained by calculation is displayed in real time in the heating process, so that a user can conveniently and visually obtain the heating temperature information, and the use experience of the user is improved.

EXAMPLE III

The present embodiment describes the structure and the operation principle of the electromagnetic heating device 33 in the first embodiment in detail.

Referring to fig. 3 and 4, the washing machine includes an outer tub 18 coaxially fitted to an outside of the inner tub 17, and the electromagnetic heating device 33 is disposed on the outer tub 18 to heat an inside of the outer tub 18 and transfer a heating heat to the washing water contained in the inner tub 17.

The electromagnetic heating device 33 is provided on the outer cylinder 18 to heat the inner cylinder 17 inside the outer cylinder 18 and the washing water inside the inner cylinder 17 by using electromagnetism, thereby achieving the purpose of adjusting the temperature of the washing water inside the inner cylinder 17 of the washing machine.

In this embodiment, at least a portion of the inner cylinder 17 is made of a metal material, and generates heat by generating an eddy current effect by receiving a magnetic field generated by the electromagnetic heating device 33. The outer cylinder 18 is made of a plastic material that does not excite the eddy current effect in a magnetic field. Preferably, the sidewall of the inner cylinder 17 is made of metal material, and the electromagnetic heating device 33 is correspondingly disposed on the sidewall of the outer cylinder 18.

In this embodiment, the gravity causes the inlet water flowing into the inner cylinder 17 to downwardly converge at the bottom of the inner cylinder 17, so to improve the heating efficiency, the electromagnetic heating device 33 is preferably disposed at the lowest position of the outer cylinder 18 to directly heat the inlet water converged at the bottom of the inner cylinder 17 and adjust the temperature of the washing water in the inner cylinder 17.

In this embodiment, in order to further improve the heating efficiency, the following setting may be performed: a plurality of electromagnetic heating devices 33 are arranged on the outer cylinder 18; preferably, the electromagnetic heating devices 33 are arranged on the side wall of the outer cylinder 18 at certain intervals. By providing a plurality of electromagnetic heating devices 33 on the outer cylinder 18, each heating device 5 can heat the inner cylinder 17 during the rotation of the inner cylinder 17.

In this embodiment, the electromagnetic heating device 33 includes a rectifier 332 and a plastic casing, the plastic casing is hollow to form an installation cavity with an opening on one side, an electromagnetic generator is installed in the installation cavity, preferably, the electromagnetic generator is an electromagnetic heating coil 331, the plastic casing is fixedly installed outside the outer cylinder, and the installation cavity of the plastic casing is opened toward the inside of the outer cylinder, so that an electromagnetic field generated by the electromagnetic generator in the installation cavity is transmitted to the inside of the outer cylinder 18 through the opening, and further, it is ensured that the part of the inner cylinder 17 made of metal material is in a magnetic field, and the metal cylinder is acted by an eddy current effect in the magnetic field to generate heat, so as to heat the washing water in the inner cylinder 17. The flow straightener 332 may be disposed outside the outer barrel 18 or on the inner wall of the outer barrel 18. In this embodiment, be equipped with the binding post that wears out the plastic casing on the electromagnetic generator, binding post wears out and is connected with washing machine's power supply line from the bottom of plastic casing to supply power to the electromagnetic generator.

The heating program is started, the current and voltage are converted into direct current through the rectifier (driver) 332, so that the direct current is converted into high-frequency alternating current exceeding the audio frequency, the high-frequency alternating current is output to the electromagnetic heating coil 331, a high-frequency alternating magnetic field is generated, the electromagnetic induction wire acts on the outer cylinder 18 made of metal, strong eddy current is generated in the inner metal cylinder 17 due to electromagnetic induction, the eddy current overcomes the internal resistance of the inner cylinder 17 and completes the conversion of electric energy into heat energy when flowing, the heating of the inner cylinder 17 is realized, and the purpose of heating the water packaged in the inner cylinder 17 is further realized

In this embodiment, in order to prevent the magnetic field generated by the electromagnetic generator from being transmitted to the outside of the outer cylinder, a shielding device, such as a plurality of magnetic strips, may be further disposed on the plastic casing to isolate the transmission of the magnetic field to the outside of the outer cylinder.

Example four

The embodiment mainly introduces the structure of the water quantity obtaining module in the first embodiment in detail, and mainly solves the problem of how to accurately determine the water inflow of the drum washing machine with the non-porous inner drum, and the specific scheme is as follows:

referring to fig. 3 to 5, a washing machine includes an inner tub 17 and a water inlet pipe 36 communicated with the inner tub 17, wherein the inner tub 17 is a non-porous inner tub and holds washing water when washing clothes, and the water inlet pipe 36 is provided with a flow sensor 1 for detecting a water inlet flow.

In the embodiment, the flow sensor 1 is arranged on the water inlet pipeline 36 to monitor the flow rate of the inlet water, and when the set water inlet amount is reached, the water inlet valve 20 is closed to finish the inlet water. The embodiment adopts the flow sensor to solve the problem of water inlet of the drum washing machine with the non-porous inner drum according to the set water level, ensures the washing effect, has simple structure and is convenient to control.

Further, the drum washing machine of the embodiment includes a water inlet valve 20 and a detergent box 3, the water inlet pipeline 36 includes a first water inlet pipe and a second water inlet pipe, an outlet end of the water inlet valve 20 is communicated with the detergent box 3 through the first water inlet pipe, an outlet end of the detergent box 3 is communicated with the inner drum 17 through the second water inlet pipe, and the flow sensor 1 is disposed on the first water inlet pipe or the second water inlet pipe.

Preferably, the flow sensor 1 is disposed on the first water inlet pipe, so that the detergent in the detergent box can be placed into the flow sensor 1.

The drum washing machine of the embodiment comprises a main controller 4, and the flow sensor 1 is electrically connected with the main controller 4 through a line. The main controller 4 can collect the water inflow of the inner cylinder 17 in real time to reach the set water inflow, and the water inlet valve 20 is closed.

As an implementation manner of this embodiment, the flow sensor 1 is a rotor flow sensor, or a turbine flow sensor, or an ultrasonic flow sensor, or an electromagnetic flow sensor, or an orifice flow sensor.

In this embodiment, the flow sensor 1 may be disposed at any position on the water inlet pipeline, preferably, at the rear portion of the water inlet valve 20, and precisely measures the water flow entering the sealed inner cylinder 17, the flow sensor 1 is connected to the main controller 4 through a line, and the main controller 4 may collect the water inflow of the inner cylinder 17 in real time to set the water inflow and close the water inlet valve 20.

In order to realize water inlet into the nonporous inner barrel, the drum washing machine of the embodiment comprises a driving motor 16 and an inner barrel shaft 13, wherein the driving motor 16 is in transmission connection with the inner barrel 17 through the inner barrel shaft 13 to drive the inner barrel 17 to rotate, a hollow channel 14 communicated with the inside of the inner barrel 17 is arranged in the inner barrel shaft 13, and the water inlet pipeline is communicated with the hollow channel of the inner barrel shaft 13.

Specifically, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft 13; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor and is communicated with the hollow channel 14 of the inner cylinder shaft 13.

Furthermore, a first dynamic sealing structure 15 is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel 14 of the inner cylinder shaft 13.

In order to realize the drainage of the imperforate inner cylinder, the drum washing machine of the embodiment comprises an outer cylinder 18, wherein an inner cylinder drainage hole is formed in the side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is installed on the inner cylinder drainage hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open to drain water is installed on the outer cylinder 18.

In an embodiment of the present invention, the outer cylinder 18 is further provided with a locking mechanism for locking the rotation of the inner cylinder 17, and the locking mechanism pushes the one-way valve plug 11 open to discharge water after the inner cylinder is locked by the push rod mechanism 10.

As another implementation manner of this embodiment, in this embodiment, a plurality of dewatering holes are formed in the side wall of the inner cylinder 17, centrifugal valves are installed on the dewatering holes, and the centrifugal valves are opened under the action of the dewatering centrifugal force to perform washing drainage or dewatering drainage by controlling the inner cylinder to reach a certain rotation speed.

The present embodiment also provides a control method for the drum washing machine, in which the washing machine executes a washing/rinsing procedure, the flow sensor detects a water inlet flow value in real time during a water inlet process, the washing machine calculates a water inlet flow according to the water inlet flow value and the water inlet time, and stops water inlet when the water inlet flow reaches a set water inlet flow of the washing machine.

The drum washing machine is provided with a plurality of water inlet flow values for users to select, and the washing machine carries out water inlet according to the water inlet flow values selected by the users.

The drum washing machine has a clothes weighing function, and can determine the flow value of inlet water according to the weight of clothes to carry out water inlet.

EXAMPLE five

With reference to fig. 6 to 12, a laundry lifting device for a washing machine and a drum washing machine according to the present embodiment are provided.

A laundry lifting device 32 for a washing machine of the present embodiment includes:

a body having a receiving chamber therein;

the water inlet is arranged on the body and communicated with the accommodating chamber;

the centrifugal drainage assembly is arranged in the accommodating chamber;

the initial state of the centrifugal drainage component is a closed state, and the centrifugal drainage component can be opened to drain water under the action of centrifugal force.

The clothes lifting device 32 of the embodiment can be installed on the inner wall of the inner drum 17 of the drum washing machine, and can lift clothes to a certain height along with the rotation of the inner drum 17 during the washing process, and then the clothes are beaten and dropped. In this embodiment, a centrifugal drainage assembly is integrated in the clothes lifting device 32, the initial state of the centrifugal drainage assembly is a closed state, the inner cylinder is kept closed to independently contain washing water, and the centrifugal drainage assembly can be opened to drain water under the action of centrifugal force, so that the drainage of the drum washing machine with the inner cylinder without holes is realized.

Therefore, this embodiment sets up centrifugal drainage subassembly in with hoisting device, has not only realized sclausura inner tube drum type washing machine's clothing promotion and drainage, forms the modularization supply of goods moreover, and the production equipment of being convenient for improves the packaging efficiency.

With reference to fig. 7 to 12, the body of the present embodiment includes:

a lift case 3201 having a protrusion on a surface thereof and an open cavity inside thereof;

a lifting base 3208 detachably mounted at an open end of the open cavity of the lifting housing 3201 to form a receiving chamber;

the centrifugal drainage assembly is mounted on a lifting base 3208, and the water inlet 3209 is disposed on the lifting housing 3201 and/or the lifting base 3208.

The lifting device of the present embodiment includes a lifting housing 3201 having a surface with protrusions for lifting the laundry; a poppet base 3208 removably mounted at the open end of the open cavity of the poppet housing 3201 to form a receiving chamber for mounting a centrifugal drainage assembly.

Further, in order to realize centrifugal drainage and installation of the centrifugal drainage assembly, the centrifugal drainage assembly of the embodiment comprises:

the centrifugal piece generates centrifugal motion under the action of centrifugal force;

a sealing plunger 3213 for sealing the water outlet;

the centrifugal piece centrifugally moves to drive the sealing plunger 3213 to move to open the water outlet;

and a plunger through hole for sealing the plunger 3213 to penetrate out of the accommodating chamber is formed in the lifting base 3208.

The centrifugal piece of this embodiment includes connecting portion 3218 and counter weight portion 3217, and counter weight portion 3217 is connected to the one end of connecting portion 3218, and the other end and the rotatable connection of sealed plunger 3213, and the rotatable installation in the middle part of connecting portion 3218 forms lever structure on promoting base 3208.

One end of the connecting portion 3218 of the present embodiment is provided with a first connecting hole 3215 rotatably connected to an end of the sealing plunger 3213, and a second connecting hole 3216 is provided in a middle portion of the connecting portion 3218.

Further, a guide 3214 is installed at the plunger through hole on the lifting base 3208, a guide channel opposite to the plunger through hole is formed in the guide 3214, and the sealing plunger 3213 is disposed in the guide channel and reciprocates along the guide channel, so as to ensure stable reciprocating motion of the sealing plunger 3213, and more accurate resetting of the sealing plunger 3213 can ensure a sealing effect of the water outlet of the inner cylinder.

In the embodiment, a sealing plug 3204 is disposed on the sealing plunger 3213, and an elastic member 3203 for providing an elastic force for restoring the sealing plunger 3213 is sleeved on the sealing plunger 3213, where the elastic member 3203 is a spring.

In order to achieve a fixed connection between the lifting housing 3201 and the lifting base 3208, the lifting base 3208 has a base fixing column 3205, a connecting rib 3219 extending toward the open end is provided in the open cavity of the lifting body 3201, and the base fixing column 3205 is fixedly connected with the connecting rib 3219.

Preferably, the centrifugal drainage assembly is disposed in the middle of the lifting base 3208, and the base fixing posts 3205 include at least two and are symmetrically disposed on both sides of the centrifugal drainage assembly.

Further, base member fixed column 3205 and splice bar 3219 pass through joint structure joint location in this embodiment, base member fixed column 3205 and splice bar 3219 fix a position the back through connecting piece 3207 fixed connection.

Preferably, the connecting rib 3219 is provided with a locking protrusion 3221, the base fixing post 3205 is provided with a channel for the connecting rib to extend into, and a locking groove 3222 engaged with the locking protrusion 3221 is disposed on a peripheral wall of the channel.

In this embodiment, the connecting rib 3219 is provided with a connecting hole, the base fixing post 3205 is provided with a positioning hole opposite to the connecting hole, and the connecting member 3207 passes through the positioning hole and is fixedly connected to the connecting hole, preferably, the connecting member 3207 is a connecting screw.

In order to realize that the lifting device is installed in the inner cylinder, in this embodiment the uncovered both ends of promotion casing 3201 set up the casing fixed column 3202 that is used for fixed assembly lifting device respectively, promotion base 3208 correspond casing fixed column 3202 position department and dodge the setting, the casing fixed column 3202 of this embodiment makes the structure that the lifting device installed in the inner cylinder unchangeable, reduces the learning cost of assembly, improves the packaging efficiency.

Preferably, the lifting base 3208 is a plate-shaped structure covering the open cavity of the lifting housing 3201, two ends of the plate-shaped structure are spaced from the open edge of the lifting housing, respectively, and the housing fixing posts 3202 are correspondingly disposed in the spaces between the two ends.

The lift case 3201 according to the present embodiment includes an annular base portion 3211 and a protrusion portion 3212 integrally formed with the annular base portion 3211 and extending to protrude toward one side.

The water inlet 3209 is arranged on the annular base portion 3211, and the projection portion 3212 is provided with a plurality of spraying holes 3210 communicated with the open cavity.

As shown in fig. 6, the present embodiment also provides a drum washing machine having the laundry lifting device for washing machine, including: an inner cylinder 17; an inner cylinder door 6 openably/closably mounted on a cylinder opening of the inner cylinder 17; when the inner drum door 6 is closed, the inner drum door and the inner drum 17 form an independent washing chamber together, and washing water is independently contained when clothes are washed; the side wall of the inner cylinder 17 is provided with a water outlet, the lifting device 32 is arranged on the water outlet on the inner wall of the inner cylinder 17, and the centrifugal drainage component seals and closes the water outlet.

The drum washing machine of the embodiment has the advantages that the inner drum door 6 is arranged on the opening of the inner drum 17, the inner drum 17 adopts a non-porous drum design, the inner drum and the non-porous drum form an independent washing chamber together, washing water is independently contained when clothes are washed, and washing/rinsing water does not need to be filled between the inner drum and the outer drum, so that the washing water consumption of the washing machine is greatly reduced; the possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided; the user health and user experience are greatly improved, and water resources are greatly saved.

Furthermore, a fixing hole for fixedly assembling the lifting device 32 is formed in the side wall of the inner cylinder 17, the lifting device 32 is fixed on the fixing hole in a sealing mode through a connecting piece, and the aim of independently containing washing water is achieved by sealing, connecting and keeping the inner cylinder 17 closed.

The control method of the drum washing machine comprises an inner drum, washing water is contained in the inner drum when clothes are washed, a drain hole is formed in the side wall of the inner drum, a lifting device for controlling the on/off of the drain hole is installed on the drain hole, and the control method comprises the following steps: in the washing process of the washing machine, the rotating speed of the inner barrel is controlled to reach or exceed the set rotating speed N0, and the centrifugal drainage component of the lifting device is subjected to centrifugal force to open the drainage hole for inner barrel drainage.

The drainage device of the embodiment adopts the centrifugal drainage component, the control method opens the centrifugal drainage component to realize drainage by controlling the rotation of the inner cylinder to generate centrifugal force, and drainage and dehydration of the drum washing machine with the non-porous inner cylinder are realized by the centrifugal drainage component and a program control mode.

As an implementation manner of this embodiment, after the washing machine performs the washing procedure or the rinsing procedure, the rotation speed of the inner drum is controlled to reach the first rotation speed N1 and is maintained for a set time t1, where N1 is greater than or equal to N0, and N0 is greater than the rotation speed of the inner drum in the washing procedure or the rinsing procedure; when the rotation time of the inner cylinder keeping rotating speed N1 reaches t1, controlling the inner cylinder to stop rotating and entering the next procedure;

preferably, N1 is 110-400 rpm, more preferably 170 + -50 rpm, and still more preferably 150 + -20 rpm;

preferably, t1 ranges between 0.1 and 5 minutes, more preferably between 1 and 2 minutes.

Further, the washing machine includes a weighing device for weighing the weight in the inner tub, the weighing device detects a weight W0 in the inner tub before the inner tub starts to rotate at N1, the weighing device detects a weight W1 in the inner tub after the rotation time reaches t1, and the control system judges whether the water is normally drained according to comparison between W1 and W0.

Further, the control system judges whether the drainage is abnormal or not by comparing the value k of W1/W0, if the k is more than or equal to 0.7, the control system judges that the drainage is abnormal and gives an alarm, and if not, the drainage is normal.

As another implementation manner of this embodiment, after the washing machine performs the washing procedure or the rinsing procedure, the rotation speed of the inner tub is controlled to reach the first rotation speed N1, where N1 is greater than or equal to N0, and N0 is greater than the rotation speed of the inner tub in the washing procedure or the rinsing procedure; and after the water in the inner cylinder is drained, controlling the inner cylinder to stop rotating and entering the next procedure.

Further, the washing machine comprises a weighing device for weighing the weight in the inner barrel, and in the process that the inner barrel is controlled by the washing machine to keep rotating by N1, the control system judges whether the water drainage is finished according to the weight value in the inner barrel detected by the weighing device in real time.

Further, the control system judges whether the drainage is finished according to the weight value in the inner cylinder detected by the weighing device in real time and comprises:

the weighing device detects the weight values W0, W1, W2, … … and Wt in the inner cylinder in real time;

making the weighted values of adjacent time difference, and recording n 1-W1-W0, n 2-W2-W1 and … …, and nt-W (Wt) - (Wt-1);

when nt remains unchanged for a certain time and approaches 0, the drainage is completed.

Furthermore, the control system judges whether the drainage is normal or not by comparing the change conditions of n1, n2, … … and nt, and if n 1-n 2-nt … … -nt-0, the control system judges that the drainage is abnormal and gives an alarm.

Further, the washing machine performs a spinning course in which the minimum spinning speed N2 is equal to or greater than N0.

EXAMPLE six

The embodiment mainly solves the problem of how to ensure the unbalanced air pressure of the sealed cabin of the drum washing machine with the non-porous inner barrel, and particularly, the water is cut off by a sudden electromagnetic valve, particularly a tap water pipe network to form negative pressure, and washing water in the sealed cabin is backwashed to the pipe network; or the inside has gas, the problem of difficult water intake.

Referring to fig. 13 to 15, the drum washing machine of the present embodiment includes an inner drum 17, the inner drum 17 is a non-porous inner drum, and is used for containing washing water when washing clothes, and further includes an air pressure balancing mechanism for communicating the inner drum 17 with an external environment to balance an air pressure inside the inner drum.

When water enters, the air in the sealed cabin of the inner cylinder is pressurized and can overflow through the balancing mechanism, so that the air pressure balance is ensured.

When water is cut off suddenly, external atmosphere can enter the sealed cabin of the inner barrel rapidly, suck back is damaged, air pressure balance is guaranteed, and washing water is prevented from being sucked into a tap water pipe network.

Other air pressure balancing mechanisms can also ensure the air pressure balance of the inner cylinder during dehydration.

As an implementation manner of this embodiment, the air pressure balancing mechanism includes a pressure equalizing hole 27 disposed on the inner barrel 17, and one end of the pressure equalizing hole 27, which is communicated with the inside of the inner barrel 17, is disposed on the inner barrel 17 at a position close to the central rotation axis and is always higher than the highest water level position in the inner barrel 17.

The drum washing machine of the embodiment comprises a driving motor 16 and an inner drum shaft 13, wherein the driving motor 16 is in transmission connection with the inner drum 17 through the inner drum shaft 13 to drive the inner drum 17 to rotate, a pressure equalizing pore passage 27 is formed in the inner drum shaft 13 to communicate the inside of the inner drum 17 with the external environment, and the highest water level in the inner drum 17 is lower than that of the inner drum shaft 13. Thus, the water in the inner cylinder can be prevented from flowing out of the pressure equalizing pore passage.

The drum washing machine of the embodiment comprises an outer drum 18, wherein the inner drum 17 is arranged inside the outer drum 18, water discharged from the inner drum 17 is discharged through the outer drum 18, an inner drum door 6 for sealing the inner drum is arranged at the opening of the inner drum 17, the opening of the outer drum 18 is open, one end of a pressure equalizing channel 27 is communicated with the inside of the inner drum 17, and the other end of the pressure equalizing channel is arranged inside the outer drum 18 and communicated with the inside of the outer drum 18. In this way, the bore effluent is prevented from being collected within the outer cartridge 18.

Furthermore, in this embodiment, an inner cylinder drain hole is formed in a side wall of the inner cylinder 17, a normally closed one-way valve plug 11 is installed on the inner cylinder drain hole, and a push rod mechanism 10 for pushing the one-way valve plug 11 open to drain water is installed on the outer cylinder 18.

Preferably, a locking mechanism for locking the rotation of the inner cylinder is further arranged on the outer cylinder 18, and the push rod mechanism pushes the one-way valve plug open for drainage after the locking mechanism locks the inner cylinder.

Further, the drum washing machine of the embodiment comprises a water inlet pipeline, the inner drum shaft 13 is internally provided with a hollow channel 14 communicated with the inside of the inner drum 17, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure equalizing pore passage 27 and the hollow channel 14 are respectively communicated with the inside of the inner cylinder 17 and are arranged in a mutually isolated way. Thus, the gas in the sealed cabin of the inner cylinder can be smoothly discharged to keep the air pressure in the inner cylinder balanced, and simultaneously, the water leakage caused by the direct discharge of the inlet water from the pressure equalizing pore passage 27 can be prevented.

Specifically, the hollow channel 27 extends from one end to the other end along the central axis direction of the inner cylinder shaft, the pressure equalizing channel includes a first channel section and a second channel section, the first channel section is arranged in parallel with the hollow channel, one end of the first channel section is communicated with the inside of the inner cylinder, one end of the second channel section is communicated with the first channel section, and the other end of the second channel section extends to the peripheral wall of the inner cylinder shaft and is communicated with the inside of the outer cylinder.

Preferably, the second pore channel section and the first pore channel section are vertically arranged to form an L-shaped pressure equalizing pore channel.

Further, the inner cylinder shaft 13 is connected with a driving motor 16, the driving motor 16 comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor to be communicated with the hollow channel of the inner cylinder shaft.

Preferably, a first dynamic sealing structure is arranged between the water inlet pipeline and the through hole of the rotor, and a second sealing structure is arranged between the through hole of the rotor and the hollow channel of the inner cylinder shaft.

The drum type washing machine of this embodiment, set up a plurality of dehydration holes on the lateral wall of inner tube 17, all install the centrifugal valve on the dehydration hole, the centrifugal valve open under the effect of dehydration centrifugal force and dewater the drainage.

EXAMPLE seven

Referring to fig. 16 to 20, the drum washing machine of the present embodiment includes an inner drum 17, the inner drum 17 is a non-porous inner drum, and holds washing water when washing laundry, and further includes a pressurization mechanism and/or a pressure release mechanism for communicating the inner drum with an external environment to balance an internal air pressure of the inner drum 17.

The pressurizing mechanism described in this embodiment includes a pressurizing duct 28 and a negative pressure safety valve 29, the negative pressure safety valve 29 is disposed on the pressurizing duct 28, and is used for conducting the pressurizing duct 28 in one way when the internal pressure of the inner cylinder 17 is smaller than the atmospheric pressure of the external environment, the external environment gas enters the inner cylinder 17 from the pressurizing duct 28 to be pressurized until the internal pressure of the inner cylinder 17 is balanced with the atmospheric pressure of the external environment, and the negative pressure safety valve 29 is closed.

The pressure relief mechanism described in this embodiment includes a pressure relief hole 30 and a positive pressure safety valve 31, the pressure relief hole 30 is disposed at a position close to the rotation center axis on the inner cylinder 17 and is always higher than the highest water level position in the inner cylinder 17, the positive pressure safety valve 31 is disposed on the pressure relief hole 30, and is used for conducting the pressure relief hole 30 in one way for pressure relief when the internal pressure of the inner cylinder 17 is greater than the atmospheric pressure of the external environment, until the internal pressure of the inner cylinder 17 is balanced with the atmospheric pressure of the external environment, and the positive pressure safety valve 31 is closed.

Referring to fig. 17, when water enters, the gas in the sealed cabin of the inner cylinder 17 is pressurized, and once the pressure is greater than the set value of the positive pressure safety valve, the positive pressure safety valve is opened and can overflow through the pressure relief pore passage, so that the air pressure balance is ensured.

As shown in fig. 17, when water is suddenly cut off, the gas in the sealed cabin of the inner cylinder 17 is pressurized, once the pressure is less than the set value of the positive pressure safety valve, the external atmosphere can rapidly enter the sealed cabin and destroy the suck-back, so that the air pressure balance is ensured, and the washing water is prevented from being sucked into a tap water pipe network. Other air pressure balancing mechanisms can also ensure the air pressure balance of the inner cylinder during dehydration.

The drum washing machine of the embodiment comprises a driving motor 16 and an inner drum shaft 13, wherein the driving motor 16 is in transmission connection with the inner drum 17 through the inner drum shaft 13 to drive the inner drum 17 to rotate, a pressurizing pore channel 28 and/or a pressure relief pore channel 30 are/is formed in the inner drum shaft 13 to communicate the inside of the inner drum 17 with the external environment, and the highest water level in the inner drum 17 is lower than the inner drum shaft 13.

The drum washing machine of the embodiment comprises an outer drum 18, wherein an inner drum 17 is arranged inside the outer drum 18, water discharged from the inner drum 17 is discharged from the outer drum 18, an inner drum door 6 for sealing the inner drum is installed at a drum opening of the inner drum 17, the drum opening of the outer drum 18 is opened, one end of a pressurizing pore passage 28 and/or a pressure relief pore passage 30 is communicated with the inside of the inner drum 17, and the other end of the pressurizing pore passage and/or the pressure relief pore passage 30 is arranged inside the outer drum 18 and communicated with the inside of the outer drum 18.

The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in an inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressure relief duct 30 and the hollow channel 14 are respectively communicated with the interior of the inner cylinder 17 and are arranged in an isolated manner.

With reference to fig. 19 and 20, the hollow channel 14 extends from one end to the other end along the central axis of the inner cylinder shaft 13, the pressure relief duct 30 includes a first duct section and a second duct section, the first duct section is disposed in parallel with the hollow channel, one end of the first duct section is communicated with the inside of the inner cylinder, one end of the second duct section is communicated with the first duct section, and the other end of the second duct section extends to the outer peripheral wall of the inner cylinder shaft and is communicated with the inside of the outer cylinder;

preferably, the second duct section and the first duct section are arranged perpendicularly to form an L-shaped pressure relief duct.

The drum washing machine of the embodiment comprises a water inlet pipeline, wherein a hollow channel 14 communicated with the inside of an inner drum 17 is arranged in an inner drum shaft 13, and the water inlet pipeline is communicated with the hollow channel 14 of the inner drum shaft 13; the pressurizing port 28 communicates with the hollow passage 14.

Further, the hollow passage 14 extends from one end to the other end along the central axis direction of the inner cylinder shaft 13, one end of the pressurizing duct 28 is communicated with the hollow passage 14, and the other end extends to the outer peripheral wall of the inner cylinder shaft 13 and is communicated with the inside of the outer cylinder 18. Preferably, the pressurizing port 28 and the hollow passage 14 are arranged perpendicular to each other.

The inner cylinder shaft is connected with the driving motor, the driving motor comprises a stator and a rotor, and the rotor is fixedly connected with the inner cylinder shaft; the center of the rotor is provided with a through hole, and the water inlet pipeline penetrates through the through hole of the rotor to be communicated with the hollow channel of the inner cylinder shaft.

Referring to fig. 19 and 20, the pressurizing port 28 and the pressure releasing port 30 are both disposed on the inner shaft 13, and the openings for communicating with the atmosphere are both inside the outer cylinder 18; the openings of the sealed cabins communicated with the inner cylinder 17 are all arranged at the inner side of the water inlet channel 14 of the inner cylinder shaft 13. It is conceivable that the preferred pressurizing port 28 and the pressure relief port 30 are both provided on the inner cylinder shaft 13, and that the openings for communicating the atmosphere are both inside the outer cylinder 18; the openings of the sealed cabin communicated with the inner cylinder 17 are all arranged at the inner side of the sealed cabin.

The above embodiments may be implemented individually or in combination with each other.

The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design idea of the present invention belong to the protection scope of the present invention.

Claims

1. A washing machine, characterized by comprising:

an inner tub for independently containing washing water when washing clothes;

2. The washing machine as claimed in claim 1, wherein:

further comprising a processing module comprising a computing unit, the computing unit being rootedAccording to the heating formula of water, T ═ P T)/C ═ m + T₀Calculating the heating temperature T of the washing water at the heating time T, wherein C is the specific heat capacity of the water, and P is the power of the non-contact heating module;

3. The washing machine as claimed in claim 2, wherein:

the processing module further comprises a judging unit for judging the heating temperature T of the current washing water and the target heating temperature T of the washing water_TargetThe size of (d);

4. The washing machine as claimed in claim 2, wherein:

the washing machine further comprises a display module connected with the processing module, the display module is installed on a display panel of the washing machine, and the display module can display the heating temperature T of the water calculated by the calculating unit in real time or once on the display panel at intervals of a certain time.

5. The washing machine as claimed in claim 4, wherein:

the control panel of the washing machine is provided with a trigger unit for triggering the processing module to work, the trigger unit is respectively connected with the processing module and the control module, and the control module controls the processing module to work after receiving an operation instruction of the trigger unit, and calculates and displays the heating temperature T.

6. A washing machine as claimed in any one of claims 1 to 5, characterized in that:

the temperature acquisition module comprises a temperature adjusting module which is used for communication connection to obtain the initial water temperature of the inlet water of the washing machine, and the temperature adjusting module is in communication connection with the intelligent faucet and/or the water heater;

7. A washing machine as claimed in any one of claims 1 to 5, characterized in that:

the temperature acquisition module comprises a temperature detection device for directly detecting the initial water temperature of the water inlet of the washing machine, and the temperature detection device is a temperature sensor arranged at the position of the water inlet valve of the washing machine or on a water inlet pipeline.

8. A washing machine as claimed in any one of claims 1 to 5, characterized in that:

the washing machine further comprises an outer barrel and a shell, wherein the outer barrel is coaxial with the inner barrel, the shell is arranged outside the outer barrel, and the non-contact heating module is an electromagnetic heating device arranged on the outer barrel or the shell.

9. A washing machine as claimed in any one of claims 1 to 5, characterized in that:

the water quantity acquisition module is a flow sensor arranged on a water inlet of a water inlet pipe of the washing machine, and the washing machine directly detects the water inlet quantity of the washing machine through the flow sensor;

10. A washing machine as claimed in any one of claims 1 to 5, characterized in that:

the voice module is arranged at the local end of the washing machine; or the washing machine is in communication connection with an intelligent terminal, and the voice module is arranged on the intelligent terminal;