WO2022083377A1 - 一种洗衣机 - Google Patents

一种洗衣机 Download PDF

Info

Publication number
WO2022083377A1
WO2022083377A1 PCT/CN2021/119236 CN2021119236W WO2022083377A1 WO 2022083377 A1 WO2022083377 A1 WO 2022083377A1 CN 2021119236 W CN2021119236 W CN 2021119236W WO 2022083377 A1 WO2022083377 A1 WO 2022083377A1
Authority
WO
WIPO (PCT)
Prior art keywords
electromagnetic heating
washing machine
heating device
water
casing
Prior art date
Application number
PCT/CN2021/119236
Other languages
English (en)
French (fr)
Inventor
赵志强
吕佩师
许升
Original Assignee
青岛海尔滚筒洗衣机有限公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔滚筒洗衣机有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Publication of WO2022083377A1 publication Critical patent/WO2022083377A1/zh

Links

Images

Classifications

    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D06F23/025—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis with a rotatable imperforate tub
    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • 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 
    • D06F39/04—Heating arrangements
    • 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
    • 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

Definitions

  • the present invention relates to the technical field of laundry equipment, in particular, to a washing machine.
  • washing machines help people get rid of the trouble of laundry and bring great convenience to people.
  • the existing washing machines generally include an inner tub and an outer tub, and a plurality of dehydration holes are distributed on the tub wall of the inner tub.
  • the washing water between the inner tub and the outer tub will not be used, causing this part of the washing process.
  • Water is wasted, and the dirt generated during the washing process will accumulate as the water flows between the inner barrel and the outer barrel. With long-term use, the accumulation of dirt will affect the washing effect and reduce the user experience.
  • the Chinese invention patent with the application number CN201410215346.3 and the name is a drum washing machine relates to a drum washing machine, including a box body, and the box body is provided with an inner drum and an outer drum.
  • the inner cylinder is connected with the driving device
  • the inner cylinder is a non-porous inner cylinder
  • the inner cylinder has a small diameter at the bottom of the cylinder and a large diameter at the mouth of the cylinder Conical cylinder
  • the cylinder mouth of the inner cylinder is closed in an arc shape
  • the door seal is provided with a water inlet pipe, one end of the water inlet pipe is connected with the washing water rapid heating device, and the other end of the water inlet pipe passes through the door seal It extends into the inner cylinder
  • the outer cylinder is provided with a water outlet and a water pressure detection device.
  • the inner cylinder of the invention is a non-porous inner cylinder, and the water inlet of the inner cylinder is realized through the water inlet conduit arranged on the door seal, and the water is drained during the dehydration process through the shape of the inner cylinder itself, which can avoid Water is stored between the inner and outer cylinders, which greatly saves the water consumption for washing.
  • the above invention provides a drum washing machine with a non-porous inner drum, which solves the problems of wasting water between the inner drum and the outer drum and accumulating dirt between the inner drum and the outer drum.
  • traditional washing machines need to be provided on the outer drum.
  • Some functional elements cannot be set, reducing the functionality of the non-porous inner drum washing machine.
  • most of the existing washing machines use heating pipes in the outer tub to heat the washing water to improve the washing effect, while washing machines without a porous inner tub can no longer install heating pipes on the outer tub, and thus cannot achieve heated washing. Heating washing is very important to improve the washing effect, and more and more users are using it.
  • the existing application number is CN201811191414.1
  • the Chinese invention patent application named as a drum washing machine relates to a drum washing machine, which includes a drum washing machine installed in a shell, without dehydration
  • a non-porous drum with holes, the side wall of the non-porous drum is provided with a clothes feeding port, and the drum is provided with a door body that can be turned over to open and close the clothes feeding port;
  • the inside of the outer drum is heated, and the heating heat is transferred to the washing water contained in the drum.
  • the above-mentioned electromagnetic heating module on the outer drum, the drum inside the outer drum and the washing water in the drum can be heated by the electromagnetic field, thereby achieving the purpose of adjusting the temperature of the washing water in the drum of the washing machine.
  • the above-mentioned invention patent application adopts the electromagnetic heating method to realize the heating of the washing water of the drum washing machine without a porous inner cylinder.
  • the electromagnetic heating module is arranged in the outer cylinder, when the washing machine is draining, the discharged washing water will submerge the electromagnetic heating module, and discharge the washing water.
  • the washing water will inevitably contain lint and other debris. If lint remains on the electromagnetic heating module during the drainage process, the temperature of the electromagnetic heating module itself is high during heating, which may cause the burning of the residual lint; if iron-containing impurities remain on the electromagnetic heating module during the drainage process , the electromagnetic heating module will heat it when it is heated, causing the electromagnetic heating device to be heated or even burned out. Therefore, the method of wirelessly heating the water in the inner cylinder by the electromagnetic heating module needs to solve the problem of residual debris such as lint.
  • the present invention aims to provide a washing machine that improves the installation structure of the electromagnetic heating device to realize the self-cleaning of lint so as to make the electromagnetic heating more safe and reliable. Specifically, the following technical solutions are adopted:
  • a washing machine comprising:
  • the inner cylinder is arranged in the outer cylinder and has a washing chamber independently containing washing water
  • the electromagnetic heating device which is arranged in the outer cylinder, corresponding to heating the cylinder wall of the inner cylinder;
  • the electromagnetic heating device is disposed inclined downward toward the water outlet, and/or the cylindrical wall of the outer cylinder is disposed inclined downward from the position where the electromagnetic heating device is installed to the position of the water outlet.
  • the electromagnetic heating device includes an electromagnetic heating coil and an encapsulation casing covering the electromagnetic heating coil, the encapsulation casing has an upper surface of the casing parallel to the horizontal plane, and the electromagnetic heating device is along the outer surface.
  • the direction of the central axis of the cylinder and the horizontal plane are arranged at an angle a, so that the upper surface of the shell of the electromagnetic heating device is inclined downward toward the water outlet, and the angle a ⁇ 90°.
  • the electromagnetic heating device is arranged at an included angle b along the direction perpendicular to the central axis of the outer cylinder and the horizontal plane, and the included angle b ⁇ 90°.
  • the electromagnetic heating device includes an electromagnetic heating coil and an encapsulation casing covering the electromagnetic heating coil, the encapsulation casing has an upper surface of the casing parallel to the horizontal plane, and the upper surface of the casing is along the The direction of the central axis of the outer cylinder and the horizontal plane are arranged at an angle a, and the angle a is less than 90°, so that the upper surface of the casing is inclined downward toward the water outlet.
  • the electromagnetic heating device includes an electromagnetic heating coil and an encapsulation casing covering the electromagnetic heating coil, the encapsulation casing has an upper surface of the casing, and the upper surface of the casing is along the central axis of the outer cylinder. The direction is bent downward, so that the upper surface of the shell of the electromagnetic heating device is inclined downward toward the water outlet.
  • At least one side of the upper surface of the casing is bent downward along the circumferential direction of the outer cylinder.
  • the side wall of the outer cylinder has a groove structure extending along the central axis, the electromagnetic heating device is installed in the groove structure, the water outlet is opened on the bottom wall of the groove structure, the The electromagnetic heating device and the water outlet are arranged axially spaced apart.
  • the electromagnetic heating coil of the electromagnetic heating device is arranged in an arc shape matching the shape of the side wall of the inner cylinder.
  • the upper surface of the casing of the electromagnetic heating device is a smooth plane.
  • an insulating layer is laid on the upper surface of the casing of the electromagnetic heating device.
  • the invention provides a washing machine, which can greatly reduce the washing water consumption of the washing machine without filling washing/rinsing water between the inner tub and the outer tub. Avoid the possibility of dirt adhesion between the inner cylinder and the outer cylinder. It greatly improves user health and user experience, and greatly saves water resources.
  • the washing machine of this embodiment utilizes the electromagnetic heating device to achieve non-contact heating of the inner tub, thereby heating the washing water in the inner tub, realizing the heating washing function of the washing machine with the non-porous inner tub, and improving the washing effect of clothes.
  • the electromagnetic heating device of the washing machine of the present invention is disposed inclined downward toward the water outlet, and/or the drum wall of the outer tub is disposed inclined downward from the position where the electromagnetic heating device is installed to the position of the water outlet.
  • the setting method of the height difference increases the flow rate of the water flow, which has the effect of scouring, which can remove the lint and other debris. Wait for the sundries to be washed away, further avoiding the possibility of debris and other sundries remaining on the electromagnetic heating device during the drainage process, and improving the working safety of the electromagnetic heating device.
  • FIG. 1 is a front view of a washing machine according to an embodiment of the present invention.
  • Fig. 2 is a cross-sectional view of the washing machine according to the embodiment of the present invention along the X-X plane in Fig. 1;
  • FIG. 3 is a schematic diagram of the assembly of the drum assembly of the washing machine according to the embodiment of the present invention installed in the housing;
  • FIG. 4 is a cross-sectional view of a washing machine according to Embodiment 4 of the present invention taken along the X-X plane in FIG. 1 .
  • a washing machine of this embodiment includes:
  • the outer cylinder 4, the outer cylinder 4 is provided with a water outlet 20;
  • the inner cylinder 5, arranged in the outer cylinder 4, has a washing chamber for independently containing washing water;
  • the electromagnetic heating device arranged in the outer cylinder 4, corresponding to heating the cylinder wall of the inner cylinder 5;
  • the electromagnetic heating device is disposed inclined downward toward the water outlet 20, and/or the cylinder wall of the outer cylinder 5 is disposed inclined downward from the position of the electromagnetic heating device to the position of the water outlet.
  • This embodiment adopts the wireless heating method of electromagnetic heating to heat the washing water of the washing machine with no water between the inner tub and the outer tub during the washing process, realizes the heating washing function, and improves the washing effect; at the same time, the electromagnetic heating device described in this embodiment is The outer cylinder 5 is disposed inclined downward toward the water outlet 20, and/or the cylinder wall of the outer cylinder 5 is disposed inclined downward from the position where the electromagnetic heating device is installed to the position of the water outlet, so that during the drainage process, the The washing water is diverted to the drain port 20 to avoid debris such as lint remaining on the electromagnetic heating device, and the setting method of the height difference increases the flow rate of the water flow, which has the effect of scouring, and can scour the debris such as lint and other debris. Draining further avoids the possibility of debris and other debris remaining on the electromagnetic heating device during the drainage process, and improves the safety of the electromagnetic heating device.
  • the electromagnetic heating device includes an electromagnetic heating coil 8 and an encapsulation casing 10 covering the electromagnetic heating coil 8 , and the encapsulation casing 10 has a casing parallel to the horizontal plane.
  • the electromagnetic heating device is arranged at an angle a along the central axis direction of the outer cylinder and the horizontal plane, so that the upper surface of the shell of the electromagnetic heating device is inclined downward toward the water outlet, and the included angle a ⁇ 90 °. In this way, the electromagnetic heating device is inclined along the direction of the central axis of the outer cylinder, which is more conducive to guiding the discharge of water flow and scouring of debris such as lint, so as to avoid debris such as lint remaining on the electromagnetic heating device.
  • the electromagnetic heating device is arranged at an included angle b along the direction perpendicular to the central axis of the outer cylinder and the horizontal plane, and the included angle b ⁇ 90°. In this way, the electromagnetic heating device is also inclined in the horizontal radial direction of the outer cylinder, which facilitates the sliding and discharge of residual debris such as wire chips.
  • the electromagnetic heating device includes an electromagnetic heating coil 8 and an encapsulation casing 10 covering the electromagnetic heating coil 8 , and the encapsulation casing 10 has a casing parallel to the horizontal plane.
  • the upper surface of the casing is arranged at an angle a along the central axis of the outer cylinder and the horizontal plane, and the angle a ⁇ 90°, so that the upper surface of the casing is inclined downward toward the water outlet.
  • the package case 10 of the present embodiment has an upper surface of the case that is itself inclined.
  • the electromagnetic heating device includes an electromagnetic heating coil 8 and an encapsulation casing 10 covering the electromagnetic heating coil 8.
  • the encapsulating casing 10 has an upper surface of the casing, so The upper surface of the casing is bent downward along the direction of the central axis of the outer cylinder, so that the upper surface of the casing of the electromagnetic heating device is inclined downward toward the water outlet.
  • the upper surface of the housing of the electromagnetic heating device of the present embodiment is a smooth arc surface inclined downward toward the water outlet, so that it is more convenient for the remaining debris such as wire scraps to slide down and discharge.
  • the electromagnetic heating device also has a smooth arc surface inclined downward in the horizontal radial direction of the outer cylinder, which is convenient for the remaining debris such as wire scraps to slide down and discharge.
  • the side wall of the outer cylinder 4 in this embodiment has a groove structure 19 extending along the central axis, the electromagnetic heating device is installed in the groove structure 19, and the water outlet 20 is opened in the groove structure On the bottom wall of 19, the electromagnetic heating device and the water outlet 20 are axially spaced apart.
  • the bottom wall of the groove structure 19 in this embodiment is inclined downward from the position where the electromagnetic heating device is installed to the position of the water outlet.
  • the electromagnetic heating coil 8 of the electromagnetic heating device described in this embodiment is arranged in an arc shape matching the shape of the side wall of the inner cylinder 5 . In this way, it can be ensured that the electromagnetic heating coil 8 has a higher heating efficiency for the side wall of the inner cylinder 5 .
  • the upper surface of the casing of the electromagnetic heating device is a smooth plane.
  • an insulating layer is laid on the upper surface of the casing of the electromagnetic heating device.
  • the washing machine provided by this embodiment can greatly reduce the washing water consumption of the washing machine without filling the washing/rinsing water between the inner tub and the outer tub. Avoid the possibility of dirt adhesion between the inner cylinder and the outer cylinder. It greatly improves user health and user experience, and greatly saves water resources.
  • the washing machine of this embodiment utilizes the electromagnetic heating device to achieve non-contact heating of the inner tub, thereby heating the washing water in the inner tub, realizing the heating washing function of the washing machine with the non-porous inner tub, and improving the washing effect of clothes.
  • the outer cylinder 4 of the present embodiment is suspended in the casing 1 by a damping suspension spring 21 , and a shock absorber 22 is provided between the bottom of the outer cylinder 4 and the casing.
  • the control method of the washing machine in this embodiment includes: when the washing machine executes the last rinsing procedure and/or the dehydration procedure, controlling the electromagnetic heating device to turn on the heating inner tub.
  • This embodiment realizes thermal dehydration of the clothes, the electromagnetic heating device heats the inner cylinder, and the clothes have a lower moisture content, which is convenient for quick drying/drying/drying, and improves the user experience.
  • the dehydration program of the washing machine in this embodiment includes an accelerated dehydration stage in which the rotation speed of the inner drum gradually increases and a stable dehydration stage in which the rotation speed of the inner drum remains unchanged.
  • the inner drum rotates at a high speed, so a "centrifugal thin water layer" is formed on the drum wall of the inner drum.
  • the electromagnetic heating device is controlled to start the heating of the inner drum, so as to realize the high temperature inner drum.
  • the control method of the washing machine of this embodiment controls the electromagnetic heating device to turn on the heating inner cylinder in the accelerated dehydration stage of the dehydration program, for example, the electromagnetic heating is stably stopped at 600 rpm, and electromagnetic heating is performed during the process of starting to increase to 800 rpm; 800 rpm Steady stop of electromagnetic heating per minute, start to increase to 1000 r/min for electromagnetic heating; 1000 r/min to stably stop electromagnetic heating, start to increase to 1200 r/min for electromagnetic heating; 1200 r/min The electromagnetic heating was stopped steadily, and the electromagnetic heating was carried out during the process of starting to increase to 1400 rpm. In the stable state of rotation speed, there are very few "centrifugal thin water layers" to prevent the electromagnetic module from heating the inner cylinder too high and damaging the clothes
  • the washing machine controls the electromagnetic heating device to remain on during the entire accelerated dehydration stage, and is turned off when entering the stable dehydration stage.
  • the washing machine controls the electromagnetic heating device to be turned on at set time intervals during the stable dehydration stage. Since there are few "centrifugal thin water layers" in the stable dehydration stage, the heating at intervals can not only avoid energy loss, but also reduce the moisture content of clothes to a certain extent.
  • the stable dehydration stage includes a low-speed stable dehydration stage and a high-speed stable dehydration stage.
  • the washing machine controls the electromagnetic heating device to be turned on at a first set time interval T1 in the low-speed stable dehydration stage, and a second set time in the high-speed stable dehydration stage.
  • the interval opening is performed at a fixed time interval T2, and the second set time interval T2 is greater than or equal to the first set time interval T1.
  • the electromagnetic heating power of the electromagnetic heating device is adjustable, and the washing machine controls the heating power of the electromagnetic heating device in the accelerated dehydration stage to be greater than the heating power in the stable dehydration stage.
  • the washing machine controls the electromagnetic heating device to heat the inner drum with the first heating power P1 in the low-speed stable dehydration stage, heat the inner drum with the second heating power P2 in the accelerated dehydration stage, and use the third heating power P3 in the high-speed stable dehydration stage.
  • the last rinsing procedure of the washing machine of this embodiment includes a rinsing water intake stage, a rinsing washing stage and a rinsing draining stage, and the washing machine controls the electromagnetic heating device to be turned on at least in the rinsing and draining stage.
  • the electromagnetic heating device is controlled to be turned on during the rinsing process, the inner drum is heated, and the clothes are heated and then enter the dehydration process, so as to achieve the effect of "heat dehydration", improve the dehydration effect, and further reduce the moisture content of the clothes.
  • a drainage hole is arranged on the side wall of the inner cylinder, and a centrifugal drainage mechanism for controlling its opening and closing is installed on the drainage hole.
  • the centrifugal drainage mechanism keeps the drainage hole in a normally closed state.
  • the centrifugal drainage mechanism opens the drainage hole by the centrifugal force of the rotation of the inner cylinder.
  • the inner drum is controlled to rotate at the rotational speed V0 to enter the rinsing and draining stage, and the electromagnetic heating device is controlled to be turned on.
  • a "centrifugal thin water layer" is formed on the wall of the inner drum.
  • the electromagnetic heating device is controlled to start the heating of the inner drum to achieve a high temperature of about 100 °C in the inner drum. The heating and drying water for wet clothes is further reduced. moisture content.
  • the electromagnetic heating power of the electromagnetic heating device is adjustable, and the heating power of the washing machine control electromagnetic heating device in the rinsing and draining stage is greater than the heating power in other rinsing stages.
  • the washing machine controls the electromagnetic heating device to heat the inner cylinder with a fourth heating power P4 in the rinsing water inlet stage, and heat the inner cylinder with a fifth heating power P5 in the rinsing and draining stage, where the fourth heating power P4 ⁇ fifth heating power Heating power P5.
  • the electromagnetic heating power of the electromagnetic heating device is adjustable, and the main controller of the washing machine stores the corresponding relationship between the laundry load interval of the washing machine and the electromagnetic heating power:
  • the washing machine When the washing machine detects that the laundry load is in the corresponding laundry load interval, the washing machine controls the electromagnetic heating device to perform heating with electromagnetic heating power corresponding to the load interval.
  • this embodiment provides a washing machine, including:
  • the inner cylinder 5 is arranged in the outer cylinder 4;
  • the electromagnetic heating coil 8 is arranged on the outer cylinder 4;
  • an electromagnetic heating driver 7 which is electrically connected to the electromagnetic heating coil 8, and the electromagnetic heating driver 7 rectifies the alternating current into direct current, and then converts the direct current into high-frequency alternating current;
  • the electromagnetic heating driver 7 outputs high-frequency alternating current to the electromagnetic heating coil 8, thereby generating a high-frequency alternating magnetic field. water in the tank 5.
  • the heating/drying program of the washing machine in this embodiment is started, and the current and voltage are converted into direct current through the electromagnetic heating driver 7, so that the direct current becomes a high-frequency alternating current that exceeds the audio frequency, and the high-frequency alternating current with a frequency of 0-100KHz is output to the electromagnetic heating coil.
  • a high-frequency alternating magnetic field is generated; the electromagnetic induction line acts on the inner cylinder of metal material, and a strong eddy current is generated in the metal inner cylinder due to electromagnetic induction.
  • the conversion to thermal energy realizes the heating of the inner cylinder and heats the water in the inner cylinder.
  • the washing machine of this embodiment is a drum washing machine with a non-porous inner drum front-opening structure, which has a simple structure and can greatly reduce the washing of the washing machine without filling washing/rinsing water between the inner drum and the outer drum. water consumption. Avoid the possibility of dirt adhesion between the inner cylinder and the outer cylinder. It greatly improves user health and user experience, and greatly saves water resources.
  • the washing machine of this embodiment adopts a non-porous inner drum, and the inner drum independently holds the washing water during washing.
  • the resistance wire heating method of the traditional washing machine cannot realize the washing water heating of the non-porous inner drum washing machine, and the inner drum needs to be rotated during the washing process. It is also impossible to set a heating device in the inner tub to heat the water in the inner tub. Therefore, the washing machine without a porous inner tub of this embodiment uses the electromagnetic heating coil 8 to heat the side wall of the inner tub 5, and the side wall of the inner tub 5 is heated. The electromagnetic heating coil 8 heats and then transfers the heat to the washing water in the inner tub 5 to realize the heating of the washing water.
  • the resistance wire heating method used in the existing washing machine is directly heated by immersing in the water. Due to the complex water quality environment, with the increase of time, scale deposits on the resistance wire, and it is not easy to clean due to the installation location. , resulting in a gradual decrease in heating efficiency, or even damage.
  • the electromagnetic heating device is used to realize non-contact heating, which can avoid the above problems, greatly prolong the service life, and maintain long-term high-efficiency heating.
  • the inner cylinder of this embodiment is made of ferrous material, which can cut the alternating magnetic field lines generated by the electromagnetic heating coil 8 to generate alternating current (ie eddy current), and the eddy current makes the carriers on the inner cylinder side wall High-speed random motion, the carriers collide and rub against each other to generate heat energy to heat the water in the inner cylinder.
  • the electromagnetic heating coil 8 described in this embodiment is disposed on the inner wall surface of the peripheral side wall of the outer cylinder 4, and the electromagnetic heating coil 8 is packaged by an insulating material packaging shell 10,
  • the packaging casing 10 has a connecting structure for connecting with the outer cylinder.
  • the electromagnetic heating coil 8 in this embodiment is a high-frequency resonant coil, the coil is made of copper wire concentrically wound, and the electromagnetic heating coil 8 is encapsulated by the encapsulation housing 10 to avoid the contact between water and the electromagnetic heating coil 8 and improve reliability. and security.
  • a plurality of magnetic strips 12 are installed on the back of the electromagnetic heating coil 8 of this embodiment to absorb the magnetic field lines and reduce the leakage of the magnetic field lines.
  • the washing machine described in this embodiment further includes a resonance circuit electrically connected with the electromagnetic heating driver and a temperature detection circuit coupled with the resonance circuit.
  • the current of the feedback electromagnetic heating driver 7 is detected by the temperature detection circuit, and the water temperature in the inner cylinder 5 is measured by feedback.
  • the outer cylinder 4 described in this embodiment is provided with a positioning device, the positioning device has a retractable positioning column, and the inner cylinder 5 has a positioning column for matching with the positioning column.
  • the positioning hole of the positioning device extends out and cooperates with the positioning hole to lock the inner cylinder 5.
  • the positioning device locks the inner cylinder 5, and at the same time cooperates with the detection and feedback of the current of the electromagnetic heating driver 7, and performs a temperature measurement method of feedback and measuring the water temperature in the inner cylinder 5, which can improve the accuracy of temperature measurement.
  • the drum washing machine of this embodiment has a casing 1, and the casing 1 includes: a top panel 17, a front panel, a back panel and a bottom panel. Bottom feet 9 are installed and fixed on the bottom plate for supporting the entire washing machine.
  • the casing 1 has an outer cylinder 4 inside, and an inner cylinder 5 is coaxially provided in the outer cylinder 4 .
  • the main purpose of the outer cylinder 4 is to collect the drainage of the inner cylinder 5 and the drainage of the inner cylinder 5 high-speed centrifugal dehydration.
  • the inner cylinder 5 rotates, preferably a lifting rib 6 is provided to continuously lift and drop the clothes, so as to wash the clothes.
  • the inner cylinder 5 has a non-porous structure, and the outer cylinder 4 has a central mounting hole, where the bearing is installed and fixed.
  • the inner cylinder shaft which is firmly connected to the inner cylinder 5, passes through the bearing shown and is connected to the drive motor.
  • An openable/closable inner cylinder door 14 is installed on the front cylinder opening of the inner cylinder 5 , thereby realizing that the inner cylinder 5 is a sealed cabin structure 15 .
  • the driving motor of the drum washing machine of this embodiment drives the inner cylinder 5 to rotate through the transmission connection between the inner cylinder shaft and the inner cylinder 5, and the inner cylinder shaft has a connecting inner cylinder.
  • the hollow channel inside the drum 5, the water inlet pipeline of the washing machine is communicated with the hollow channel of the inner drum shaft.
  • the inner cylinder 5 of this embodiment is provided with an air pressure balancing mechanism for connecting the inner cylinder 5 and the external environment to balance the air pressure inside the inner cylinder.
  • the gas in the sealed chamber of the inner cylinder can be overflowed through the equalizing mechanism under pressure to ensure the air pressure balance.
  • the external atmosphere can quickly enter the sealed chamber of the inner cylinder, and destroy the back suction, ensure the air pressure balance, and prevent the washing water from being sucked into the tap water pipe network.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • the air pressure balancing mechanism includes a pressure equalizing channel provided on the inner cylinder 5 , and one end of the pressure equalizing channel that communicates with the interior of the inner cylinder 5 is disposed on the inner cylinder 5 near the central axis of rotation The position is always higher than the highest water level position in the inner cylinder 5.
  • the pressure equalizing hole is opened on the inner cylinder shaft to communicate the interior of the inner cylinder 5 with the external environment, and the highest water level in the inner cylinder 5 is lower than the inner cylinder shaft. This can prevent the water in the inner cylinder 5 from flowing out of the pressure equalizing hole.
  • the pressure equalizing channel in this embodiment 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 which communicates with the interior of the inner cylinder, and one end of the second channel section is communicated with the first channel section. , the other end extends to the outer peripheral wall of the inner cylinder shaft and communicates with the interior of the outer cylinder.
  • the second channel section is perpendicular to the first channel section to form an L-shaped pressure equalizing channel.
  • This embodiment provides a front-loading drum washing machine with an inner drum.
  • An inner drum door 14 is arranged on the inner drum 5 to realize washing in the closed space of the inner drum 5, and to avoid the possibility of the clothes in the inner drum 5 coming out, and the clothes being pressed and beaten.
  • the inner cylinder flows out or splashes water, which avoids the possibility of dirt adhesion between the inner and outer cylinders, and truly realizes that there is no water between the cylinders of the drum.
  • the washing machine of this embodiment has a door lock detection device that locks the inner tub door lock in place to ensure that the inner tub door is locked in place and the locking determination accuracy is 100%. If the door is not locked properly, a safety accident will occur, which greatly improves the safety of the machine, user health and user experience.
  • a drainage hole is provided on the side wall of the inner cylinder in this embodiment, and a centrifugal drainage mechanism is installed on the drainage hole.
  • the inner cylinder is controlled to rotate at a high speed, and the centrifugal mechanism descends and opens the drain hole under the centrifugal action of the high-speed rotation, and the washing water is discharged from the drain hole.
  • the centrifugal drainage mechanism is arranged in the inner chamber of the lifting rib 6 .
  • the front panel of the housing in this embodiment has a clothes feeding port and a door 2 installed on the clothes feeding port to control its opening and closing.
  • the main controller 3 of the washing machine is arranged on the upper part of the front plate of the casing, and a detergent dispensing box 16 is arranged inside the casing 1 above the outer cylinder 4 for dispensing the detergent.
  • the bottom of the outer cylinder 4 in this embodiment is connected to a drainage device 13 , and the drainage device 13 is connected to a drainage pipe 11 for leading water out of the casing 1 .
  • This embodiment also provides a method for controlling a washing machine.
  • the washing machine measures the water temperature in the inner tub by detecting, analyzing and calculating the current feedback of the electromagnetic heating driver 7 .
  • the washing machine of this embodiment uses electromagnetic heating to heat the washing water, and uses an integrated resonance circuit to measure the heating temperature of the washing water.
  • the temperature of the electromagnetic heating coil 8 basically does not change much, but the temperature of the inner cylinder wall is consistent with the water temperature, which leads to an increase in the temperature of the inner cylinder wall and an increase in resistance, which is a variable RT.
  • the eddy current of the metal inner cylinder also affects the electromagnetic heating coil 8 to form an oscillation circuit together.
  • the electromagnetic heating coil 8 itself has a resistance R, and the eddy current of the metal inner cylinder also forms a variable resistance Rx to the electromagnetic heating coil 8 . It further affects the current of the electromagnetic heating driver, analyzes and calculates the current of the electromagnetic heating driver, and feeds back the water temperature of the inner cylinder.
  • the washing machine of the present embodiment uses the principle of electromagnetic heating to measure the water temperature in the inner cylinder 5 through the mutual electromagnetic induction change between the electromagnetic heating coil 8 and the cylinder wall of the metal inner cylinder, which reduces the number of temperature sensors and simplifies the structure of the washing machine. , reducing the cost of washing machines.
  • the main controller of the washing machine stores the set current intervals N1, N2, ..., Nn of the electromagnetic heating drivers corresponding to the set water temperatures T1, T2, ..., Tn respectively.
  • the water temperature in the inner tub of the washing machine is Tn.
  • the washing machine of this embodiment controls the rotation of the inner tub during the process of heating the water in the inner tub.
  • the temperature of the entire surface of the inner cylinder is made uniform by continuously rotating the inner cylinder to make the temperature uniform, so that the heat exchange between the inner cylinder water and the inner cylinder is realized and then heated uniformly.
  • the washing machine controls the rotation of the inner tub during the process of heating the water in the inner tub, and the electromagnetic heating is calculated by detecting and analyzing every set time t0.
  • the current feedback of the drive measures the water temperature in the inner cylinder. In this way, the temperature measurement is simultaneously realized without affecting the heating process, which is simple and convenient.
  • the washing machine controls the rotation of the inner tub during the process of heating the water in the inner tub, and controls the inner tub to stop rotating every set time t0 , the positioning column of the positioning device is controlled to extend to cooperate with the positioning hole to lock the inner cylinder, and the water temperature in the inner cylinder is measured by detecting, analyzing and calculating the current feedback of the electromagnetic heating driver. In this way, the temperature is measured after the inner cylinder is locked by the positioning device, so as to avoid current fluctuation, and the measurement result is more accurate.
  • the washing machine controls and adjusts the heating power of the electromagnetic heating coil according to the process of heating the water in the inner tub.
  • variable power electromagnetic heating can be performed: for example, high water level and multi-load conditions can be used for high-power heating; while low water level and small load conditions can be used for low-power heating.
  • Another example is that the electromagnetic heating power is relatively large in the early stage, and when the set temperature is soon reached, low-power heating is performed to achieve precise temperature heating.
  • Another example is that if the user sets a high temperature of 90°C for high-temperature cooking and washing, high-power heating can be used to shorten the time; if the user sets a low-temperature heating and washing at 30°C, low-power electromagnetic heating can be used.
  • the washing machine increases the excitation pulse frequency through the electromagnetic heating driver, and the heating power of the electromagnetic heating coil can be reduced when the working circuit is out of tune;
  • the washing machine applies an excitation pulse through the electromagnetic heating driver gap, so that the electromagnetic heating coil intermittently heats the inner cylinder, and the interval time of the intermittent heating of the inner cylinder is controlled to adjust the electromagnetic heating power of the washing machine;
  • the electromagnetic heating driver is a controllable rectifier module, and the heating power of the electromagnetic heating coil is changed by changing the DC output voltage rectified by the controllable rectifier module by controlling the voltage.
  • this embodiment provides a washing machine, including:
  • the inner cylinder 5 is arranged in the outer cylinder 4;
  • the electromagnetic heating coil 8 is arranged on the outer cylinder 4;
  • the electromagnetic induction coil 18 is arranged on the inner cylinder 5 and is located at a position opposite to the electromagnetic heating coil 8 .
  • the washing machine of this embodiment uses the electromagnetic heating coil 8 to heat the metal cylinder wall of the inner cylinder 5 by means of electromagnetic heating, and the inner cylinder 5 heats the washing water in the cylinder to realize the heating and washing function of the washing machine.
  • an electromagnetic induction coil 18 is arranged on the inner drum for the heating method using the electromagnetic heating coil 8.
  • the alternating magnetic field generated by the electromagnetic induction coil 18 during the heating process reacts to the electromagnetic heating coil 8. Due to the electromagnetic induction
  • the coil 18 is arranged in the inner cylinder 5 as the temperature of the water increases, the eddy current in the electromagnetic induction coil 18 after the temperature rises changes, and the alternating magnetic field reacting to the electromagnetic heating coil 8 also changes.
  • the electromagnetic induction coil 18 affects the electromagnetic heating coil 8 to form an oscillation circuit together.
  • the electromagnetic heating coil 8 itself has a resistance R, and the electromagnetic induction coil 18 forms a variable resistance R2 to the electromagnetic heating coil 8;
  • the current of the heating driver has an influence, and the water temperature in the inner cylinder 5 is measured by feedback by analyzing and calculating the current of the electromagnetic heating driver.
  • the washing machine of this embodiment utilizes the principle of electromagnetic heating to measure the water temperature in the inner tub 5 through the mutual electromagnetic induction change between the electromagnetic heating coil 8 and the electromagnetic induction coil 18, which reduces the installation of temperature sensors, simplifies the structure of the washing machine, and reduces the cost of the washing machine.
  • the washing machine of this embodiment is a drum washing machine with a non-porous inner drum front-opening structure, which has a simple structure and can greatly reduce the washing of the washing machine without filling washing/rinsing water between the inner drum and the outer drum. water consumption. It avoids the possibility of dirt adhesion between the inner cylinder and the outer cylinder. It greatly improves user health and user experience, and greatly saves water resources.
  • the washing machine of this embodiment adopts a non-porous inner drum, and the inner drum independently holds the washing water during washing.
  • the resistance wire heating method of the traditional washing machine cannot realize the washing water heating of the non-porous inner drum washing machine, and the inner drum needs to be rotated during the washing process. It is also impossible to set a heating device in the inner tub to heat the water in the inner tub. Therefore, the washing machine without a porous inner tub of this embodiment uses the electromagnetic heating coil 8 to heat the side wall of the inner tub 5, and the side wall of the inner tub 5 is heated. The electromagnetic heating coil 8 heats and then transfers the heat to the washing water in the inner tub 5 to realize the heating of the washing water.
  • the resistance wire heating method used in the existing washing machine is directly heated by immersing in the water. Due to the complex water quality environment, with the increase of time, scale deposits on the resistance wire, and it is not easy to clean due to the installation location. , resulting in a gradual decrease in heating efficiency or even damage.
  • the electromagnetic heating device is used to realize non-contact heating, which can avoid the above problems, greatly prolong the service life, and maintain long-term high-efficiency heating.
  • the inner cylinder of this embodiment is made of ferrous material, which can cut the alternating magnetic field lines generated by the electromagnetic heating coil 8 to generate alternating current (ie eddy current), and the eddy current makes the carriers on the inner cylinder side wall High-speed random motion, the carriers collide and rub against each other to generate heat energy to heat the water in the inner cylinder.
  • the electromagnetic heating coil 8 described in this embodiment is arranged at the bottom of the peripheral side wall of the outer cylinder 4, and the electromagnetic induction coil 18 is arranged on the inner wall surface of the peripheral side wall of the inner cylinder 5; during the rotation of the inner cylinder , the electromagnetic induction coil 18 and the electromagnetic heating coil 8 are located in the same radial direction of the outer cylinder 4 . In this way, during the heating process, it is necessary to control the rotation of the inner cylinder 5 to the position where the electromagnetic induction coil 18 and the electromagnetic heating coil 8 are in the opposite position to realize temperature measurement.
  • a positioning device is provided on the outer cylinder 4 in this embodiment, and the positioning device has a retractable positioning column, and the inner cylinder 5 is provided with a positioning hole for matching with the positioning column; when the positioning column of the positioning device extends out and cooperates with the positioning hole to lock the inner cylinder, the electromagnetic induction coil 18 and the electromagnetic heating coil 8 are in relative positions.
  • the electromagnetic induction coil 18 in this embodiment is encapsulated by an encapsulation casing 10 made of insulating material, and the encapsulation casing 10 has a connection structure for connecting with the inner cylinder.
  • the electromagnetic heating coil 8 is arranged on the inner wall surface of the peripheral side wall of the outer cylinder 4, and the electromagnetic heating coil 8 is packaged by an insulating material encapsulation shell 10, and the encapsulation shell 10 has a The connection structure connected with the outer cylinder.
  • the electromagnetic heating coil 8 and the electromagnetic induction coil 18 in this embodiment are high-frequency resonance coils, and the coils are concentrically wound with copper wires.
  • the electromagnetic induction coil 18 and the electromagnetic heating coil 8 are encapsulated by the encapsulation housing 10, respectively, so as to avoid the contact of water with the electromagnetic induction coil 18 and the electromagnetic heating coil 8, thereby improving reliability and safety.
  • the washing machine of this embodiment further includes an electromagnetic heating driver 7 electrically connected to the electromagnetic heating coil 8.
  • the electromagnetic heating driver 7 rectifies the alternating current into direct current, and then converts the direct current into high-frequency alternating current; the electromagnetic heating driver 7 converts the alternating current into direct current.
  • the high-frequency alternating current is output to the electromagnetic heating coil 8, thereby generating a high-frequency alternating magnetic field.
  • the inner cylinder generates heat due to the induction eddy current generated by electromagnetic induction in the high-frequency alternating magnetic field, and heats the water in the inner cylinder 5.
  • the electromagnetic heating coil 8 and the electromagnetic induction coil 18 of this embodiment are equipped with a plurality of magnetic strips 12 on the backs to absorb the magnetic induction lines and reduce the leakage of the magnetic induction lines.
  • the washing machine described in this embodiment further includes a resonance circuit electrically connected with the electromagnetic heating driver 7 and a temperature detection circuit coupled with the resonance circuit.
  • the current of the feedback electromagnetic heating driver 7 is detected by the temperature detection circuit, and the water temperature in the inner cylinder 5 is measured by feedback.
  • the present embodiment also provides a method for controlling a washing machine.
  • the washing machine includes an electromagnetic heating coil 8 and an electromagnetic heating driver 7 electrically connected to the electromagnetic heating coil 8.
  • the control method includes:
  • the washing machine controls the inner tub to be at the opposite position between the electromagnetic induction coil and the electromagnetic heating coil, and measures the water temperature in the inner tub by detecting, analyzing and calculating the current feedback of the electromagnetic heating driver.
  • the heating/drying program of the washing machine in this embodiment is started, and the current and voltage are converted into direct current through the electromagnetic heating driver 7, so that the direct current becomes a high-frequency alternating current that exceeds the audio frequency, and the high-frequency alternating current with a frequency of 0-100KHz is output to the electromagnetic heating coil.
  • a high-frequency alternating magnetic field is generated; the electromagnetic induction line acts on the inner cylinder of metal material, and a strong eddy current is generated in the metal inner cylinder due to electromagnetic induction.
  • the conversion to thermal energy realizes the heating of the inner cylinder and heats the water in the inner cylinder.
  • the washing machine of this embodiment uses electromagnetic heating to heat the washing water, and uses an integrated resonance circuit to measure the heating temperature of the washing water.
  • the inner cylinder 5 can be positioned and locked by the positioning device, so that the electromagnetic induction coil 18 fixed on the inner surface of the inner cylinder 5 is opposite to the electromagnetic heating coil 8 fixed on the outer cylinder.
  • the temperature of the electromagnetic heating coil 8 basically changes little, but the electromagnetic induction coil 18 on the inner surface of the inner cylinder is consistent with the water temperature, resulting in an increase in the temperature of the electromagnetic induction coil 18 and an increase in resistance, and its resistance is a variable R1.
  • the electromagnetic induction coil 18 further affects the electromagnetic heating coil 8 to form an oscillation circuit together.
  • the electromagnetic heating coil 8 itself has a resistance R, and the electromagnetic induction coil 18 also forms a variable resistance R2 to the electromagnetic heating coil 8 . Further, the current of the electromagnetic heating driver 7 is affected. The current analysis calculation of the electromagnetic heating driver 7 is fed back to measure the water temperature of the inner cylinder.
  • the main controller of the washing machine stores the set current intervals N1, N2, ..., Nn of the electromagnetic heating drivers corresponding to the set water temperatures T1, T2, ..., Tn respectively.
  • the water temperature in the inner tub of the washing machine is Tn.
  • the washing machine of this embodiment controls the rotation of the inner tub during the process of heating the water in the inner tub.
  • the temperature of the entire surface of the inner cylinder is uniform by continuously rotating the inner cylinder to make the temperature uniform, so that the water in the inner cylinder and the inner cylinder are exchanged for heat and then heated uniformly.
  • the washing machine of this embodiment controls the inner cylinder to stop rotating at every set time t0, and when the positioning column of the positioning device is controlled to extend to cooperate with the positioning hole to lock the inner cylinder,
  • the electromagnetic induction coil and the electromagnetic heating coil are in relative positions, and the water temperature in the inner cylinder is measured by detecting, analyzing and calculating the current feedback of the electromagnetic heating driver.
  • the washing machine controls and adjusts the heating power of the electromagnetic heating coil according to the process of heating the water in the inner tub.
  • variable power electromagnetic heating can be performed: for example, high water level and multi-load conditions can be used for high-power heating; while low water level and small load conditions can be used for low-power heating.
  • Another example is that the electromagnetic heating power is relatively large in the early stage, and when the set temperature is soon reached, low-power heating is performed to achieve precise temperature heating.
  • Another example is that if the user sets a high temperature of 90°C for high-temperature cooking and washing, high-power heating can be used to shorten the time; if the user sets a low-temperature heating and washing at 30°C, low-power electromagnetic heating can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

一种洗衣机，包括：外筒（4），外筒（4）上设置排水口（20）；内筒（5），设置在外筒（4）内，具有独立盛放洗涤水的洗涤腔室；及电磁加热装置，设置在外筒（4）内，对应加热内筒（5）的筒壁；电磁加热装置朝向排水口（20）呈倾斜向下设置，和/或外筒（4）的筒壁由电磁加热装置设置位置至排水口（20）位置之间呈倾斜向下设置。洗衣机在排水过程中，可更好的将洗涤水导流至排水口（20）处，避免线屑等杂物残留在电磁加热装置上，而且，高低落差的设置方式增加了水流的流速，具有冲刷的效果，可以将线屑等杂物冲刷排走，进一步避免了排水过程中线屑等杂物残留在电磁加热装置上的可能性，提升了电磁加热装置工作的安全性。

Description

一种洗衣机 技术领域
本发明涉及洗衣设备技术领域，具体地，涉及一种洗衣机。
背景技术
洗衣机作为人们日常生活中使用最为广泛的一种家用电器，帮助人们摆脱了洗衣的烦恼，给人们带来了极大的便利。但是现有洗衣机一般都包括内筒和外桶，内筒的桶壁上分布多个脱水孔，而在洗涤过程中，内筒与外桶之间的洗涤水不会被利用，造成该部分洗涤水的浪费，且洗涤过程中产生的脏污会随着水流进入内筒与外桶之间而被积累，随着长时间的使用，脏污的累积会影响洗涤效果，降低用户使用体验。
为了解决上述问题，现在也提出了一些专利，比如申请号为CN201410215346.3，名称为一种滚筒洗衣机的中国发明专利，涉及一种滚筒洗衣机，包括箱体，箱体内设有内筒和外筒，外筒与箱体之间设有门封，内筒与驱动装置相连，所述的内筒为无孔内筒，且所述的内筒为筒底处直径小、筒口处直径大的锥形筒，内筒的筒口处向内呈弧形收拢，所述的门封上设有进水导管，进水导管的一端与洗涤水快速加热装置相连，进水导管的另一端穿过门封伸入内筒内，所述的外筒上设有排水口及水压检测装置。由上述技术方案可知，该发明的内筒为无孔内筒，通过设置在门封上的进水导管实现内筒进水，并通过内筒自身的形状在脱水过程中实现排水，这样可以避免在内、外筒之间存水，大幅节约了洗涤用水量。
上述发明提供了一种具有无孔内筒的滚筒洗衣机，解决了内筒与外筒之间存水浪费和内筒与外筒之间积累脏污的问题，但是，传统洗衣机需要在外桶上设置的一些功能元件便无法设置，减少了无孔内筒洗衣机的功能性。例如，现有大部分的洗衣机都通过在外桶内设置加热管实现加热洗涤水提升洗涤效果，而无孔内筒的洗衣机无法再在外桶上设置加热管，也就无法再实现加热洗。而加热洗对于提升洗涤效果至关重要，且越来越多的被广大用户所使用。
为了解决无孔内筒的洗衣机的加热洗，现有申请号为CN201811191414.1，名称为一种滚筒洗衣机的中国发明专利申请，涉及一种滚筒洗衣机，其包括安装于壳体内的、不 具有脱水孔的无孔滚筒，无孔滚筒侧壁上设有衣物投放口，滚筒上设有可翻转开闭衣物投放口的门体；外筒套装于滚筒外部，外筒上设有电磁加热模块，以对外筒内部进行加热、并使加热热量传递至滚筒内盛放的洗涤水。通过在外筒上设置上述的电磁加热模块，以利用电磁场对外筒内部的滚筒及滚筒内部的洗涤水进行加热处理，进而达到调节洗衣机滚筒内洗涤水温度的使用目的。
上述发明专利申请采用电磁加热的方式可以实现无孔内筒的滚筒洗衣机的洗涤水加热，但是由于电磁加热模块设置在外筒内，洗衣机在排水时，排放的洗涤水会浸没电磁加热模块，而排放的洗涤水中难免含有线屑等杂物。若线屑在排水过程中残留在电磁加热模块上，电磁加热模块在加热时本身温度较高，可能会造成残留线屑的燃烧；若含铁质杂物在排水过程中残留在电磁加热模块上，电磁加热模块在加热时会对其进行加热，造成电磁加热装置受热故障甚至烧坏。因此，采用电磁加热模块对内筒内的水进行无线加热的方式，需要解决线屑等杂物残留的问题。
有鉴于此，特提出本发明。
发明内容
为了解决上述问题，本发明旨在提供一种改进电磁加热装置的安装结构实现线屑自清洁从而使得电磁加热更加安全可靠的洗衣机，具体地，采用了如下的技术方案：
一种洗衣机，包括：
外筒，所述的外筒上设置排水口；
内筒，设置在外筒内，具有独立盛放洗涤水的洗涤腔室；
及电磁加热装置，设置在外筒内，对应加热内筒的筒壁；
所述的电磁加热装置朝向排水口呈倾斜向下设置，和/或所述外筒的筒壁由电磁加热装置设置位置至排水口位置之间呈倾斜向下设置。
进一步地，所述的电磁加热装置包括电磁加热线圈和包覆所述电磁加热线圈的封装壳体，所述的封装壳体具有与水平面平行的壳体上表面，所述的电磁加热装置沿外筒的中心轴线方向与水平面呈夹角a设置，使得电磁加热装置的壳体上表面朝向排水口呈倾斜向下设置，所述的夹角a＜90°。
进一步地，所述的电磁加热装置沿垂直于外筒的中心轴线方向与水平面呈夹角b设置，所述的夹角b＜90°。
进一步地，所述的电磁加热装置包括电磁加热线圈和包覆所述电磁加热线圈的封装 壳体，所述的封装壳体具有与水平面平行的壳体上表面，所述的壳体上表面沿外筒的中心轴线方向与水平面呈夹角a设置，所述的夹角a＜90°，使得壳体上表面朝向排水口呈倾斜向下设置。
进一步地，所述的电磁加热装置包括电磁加热线圈和包覆所述电磁加热线圈的封装壳体，所述的封装壳体具有壳体上表面，所述壳体上表面沿外筒的中心轴线方向向下弯曲，使得电磁加热装置的壳体上表面朝向排水口呈倾斜向下设置。
进一步地，所述壳体上表面的至少一侧沿外筒的周向方向向下弯曲。
进一步地，所述外筒的侧壁具有沿中心轴线延伸的凹槽结构，所述的电磁加热装置安装在凹槽结构内，所述的排水口开设在凹槽结构的底壁上，所述的电磁加热装置与排水口之间轴向间隔设置。
进一步地，所述的电磁加热装置的电磁加热线圈呈与所述内筒的侧壁形状相匹配的弧形布置。
进一步地，所述电磁加热装置的壳体上表面为光滑平面。
进一步地，所述电磁加热装置的壳体上表面上铺设隔热层。
本发明提供一种洗衣机，能够无需在内筒与外筒之间填充洗涤/漂洗水而极大的减少了洗衣机的洗涤用水量。避免了内筒与外筒之间污垢附着的可能。极大的提高了用户健康及用户体验，极大的节约了水资源。另外，本实施例的洗衣机利用电磁加热装置实现对内筒的无接触加热，进而加热内筒内的洗涤水，实现了具有无孔内筒的洗衣机的加热洗功能，提升衣物洗涤效果。
本发明洗衣机的电磁加热装置朝向排水口呈倾斜向下设置，和/或所述外筒的筒壁由电磁加热装置设置位置至排水口位置之间呈倾斜向下设置，这样，在排水过程中，可更好的将洗涤水导流至排水口处，避免线屑等杂物残留在电磁加热装置上，而且，高低落差的设置方式增加了水流的流速，具有冲刷的效果，可以将线屑等杂物冲刷排走，进一步避免了排水过程中线屑等杂物残留在电磁加热装置上的可能性，提升了电磁加热装置工作的安全性。
附图说明
图1本发明实施例洗衣机的主视图；
图2本发明实施例洗衣机沿图1中X-X面的剖视图；
图3本发明实施例洗衣机的筒体组件安装在壳体内的装配示意图；
图4本发明实施例四洗衣机沿图1中X-X面的剖视图。
附图中的标号说明：1、壳体；2、机门；3、主控制器；4、外筒；5、内筒；6、提升筋；7、电磁加热驱动器；8、电磁加热线圈；9、底脚；10、封装壳体；11、排水管；12、磁条；13、排水装置；14、内筒门；15、密封舱结构；16、洗涤剂投放盒；17、上台面板；18、电磁感应线圈；19、凹槽结构；20、排水口；21、减震吊簧；22、减震器。
具体实施方式
下面结合附图对本发明的一种洗衣机进行详细描述：
实施例一
如图1至图3所示，本实施例的一种洗衣机，包括：
外筒4，所述的外筒4上设置排水口20；
内筒5，设置在外筒4内，具有独立盛放洗涤水的洗涤腔室；
及电磁加热装置，设置在外筒4内，对应加热内筒5的筒壁；
所述的电磁加热装置朝向排水口20呈倾斜向下设置，和/或所述外筒5的筒壁由电磁加热装置设置位置至排水口位置之间呈倾斜向下设置。
本实施例采用电磁加热的无线加热方式实现了洗涤过程中内筒与外筒间无水的洗衣机的洗涤水加热，实现加热洗功能，提升洗涤效果；同时，本实施例所述的电磁加热装置朝向排水口20呈倾斜向下设置，和/或所述外筒5的筒壁由电磁加热装置设置位置至排水口位置之间呈倾斜向下设置，这样，在排水过程中，可更好的将洗涤水导流至排水口20处，避免线屑等杂物残留在电磁加热装置上，而且，高低落差的设置方式增加了水流的流速，具有冲刷的效果，可以将线屑等杂物冲刷排走，进一步避免了排水过程中线屑等杂物残留在电磁加热装置上的可能性，提升了电磁加热装置工作的安全性。
作为本实施例的一种实施方式，所述的电磁加热装置包括电磁加热线圈8和包覆所述电磁加热线圈8的封装壳体10，所述的封装壳体10具有与水平面平行的壳体上表面，所述的电磁加热装置沿外筒的中心轴线方向与水平面呈夹角a设置，使得电磁加热装置的壳体上表面朝向排水口呈倾斜向下设置，所述的夹角a＜90°。这样，电磁加热装置呈沿外筒的中心轴线方向倾斜设置，更有利于引导水流排出及线屑等杂物冲刷，避免线屑等杂物残留在电磁加热装置上。
进一步地，所述的电磁加热装置沿垂直于外筒的中心轴线方向与水平面呈夹角b设置，所述的夹角b＜90°。这样，电磁加热装置在外筒的水平径向方向也呈倾斜设置， 便于残留的线屑等杂物的滑落排出。
作为本实施例的一种实施方式，所述的电磁加热装置包括电磁加热线圈8和包覆所述电磁加热线圈8的封装壳体10，所述的封装壳体10具有与水平面平行的壳体上表面，所述的壳体上表面沿外筒的中心轴线方向与水平面呈夹角a设置，所述的夹角a＜90°，使得壳体上表面朝向排水口呈倾斜向下设置。本实施方式的封装壳体10具有本身就是倾斜的壳体上表面。
作为本实施例的一种实施方式，所述的电磁加热装置包括电磁加热线圈8和包覆所述电磁加热线圈8的封装壳体10，所述的封装壳体10具有壳体上表面，所述壳体上表面沿外筒的中心轴线方向向下弯曲，使得电磁加热装置的壳体上表面朝向排水口呈倾斜向下设置。这样，本实施方式电磁加热装置的壳体上表面朝向排水口呈倾斜向下的光滑弧面，这样，更加便于残留的线屑等杂物的滑落排出。
进一步地，所述壳体上表面的至少一侧沿外筒的周向方向向下弯曲。这样，电磁加热装置在外筒的水平径向方向也呈倾斜向下的光滑弧面，便于残留的线屑等杂物的滑落排出。
进一步地，本实施例所述外筒4的侧壁具有沿中心轴线延伸的凹槽结构19，所述的电磁加热装置安装在凹槽结构19内，所述的排水口20开设在凹槽结构19的底壁上，所述的电磁加热装置与排水口20之间轴向间隔设置。
具体地，本实施例的凹槽结构19的底壁由电磁加热装置设置位置至排水口位置呈倾斜向下设置，优选地，所述凹槽结构19的底壁与水平面之间具有夹角d，夹角d＜90°。
进一步地，本实施例所述的电磁加热装置的电磁加热线圈8呈与所述内筒5的侧壁形状相匹配的弧形布置。这样，可以确保电磁加热线圈8对于内筒5的侧壁具有更高的加热效率。
进一步地，所述电磁加热装置的壳体上表面为光滑平面。
进一步地，所述电磁加热装置的壳体上表面上铺设隔热层。
本实施例提供的一种洗衣机，能够无需在内筒与外筒之间填充洗涤/漂洗水而极大的减少了洗衣机的洗涤用水量。避免了内筒与外筒之间污垢附着的可能。极大的提高了用户健康及用户体验，极大的节约了水资源。另外，本实施例的洗衣机利用电磁加热装置实现对内筒的无接触加热，进而加热内筒内的洗涤水，实现了具有无孔内筒的洗衣机的加热洗功能，提升衣物洗涤效果。
如图3所示，本实施例的外筒4通过减震吊簧21吊装在壳体1内，外筒4的底部与壳体之间设置减震器22。
实施例二
本实施例洗衣机的控制方法包括：洗衣机在执行末次漂洗程序和/或脱水程序时，控制电磁加热装置开启加热内筒。本实施例实现了衣物的热脱水，电磁加热装置加热内筒，衣物具有更低的含水率，便于快速晾干/晒干/烘干，提升用户的使用体验。
进一步地，本实施例洗衣机的脱水程序包括内筒转速逐渐增加的加速脱水阶段和内筒转速保持不变的稳定脱水阶段，洗衣机控制电磁加热装置至少在加速脱水阶段开启加热内筒。
本实施例的洗衣机在执行脱水程序时，内筒高速离心转动，因此会在内筒的筒壁形成一层“离心薄水层”，此时控制电磁加热装置启动加热内筒，实现高温内筒约100℃，对湿衣物的加热烘水，降低含水率。
本实施例洗衣机的控制方法在脱水程序的加速脱水阶段控制电磁加热装置开启加热内筒，比如600转/分钟稳定停止电磁加热，开始升高至800转/分钟的过程中进行电磁加热；800转/分钟稳定停止电磁加热，开始升高至1000转/分钟的过程中进行电磁加热；1000转/分钟稳定停止电磁加热，开始升高至1200转/分钟的过程中进行电磁加热；1200转/分钟稳定停止电磁加热，开始升高至1400转/分钟的过程中进行电磁加热。在转速稳定状态下，“离心薄水层”很少，避免电磁模块对内筒加热温度太高损伤衣物
作为本实施例的一种实施方式，洗衣机控制电磁加热装置在整个加速脱水阶段保持开启，且在进入稳定脱水阶段时关闭。
作为本实施例的另一种实施方式，洗衣机控制电磁加热装置在稳定脱水阶段以设定时间间隔进行间隔开启。由于稳定脱水阶段“离心薄水层”很少，通过间隔加热的方式，既能避免能源损耗，又能在一定程度上降低衣物的含水率。
具体地，所述稳定脱水阶段包括低速稳定脱水阶段和高速稳定脱水阶段，洗衣机控制电磁加热装置在低速稳定脱水阶段以第一设定时间间隔T1进行间隔开启，在高速稳定脱水阶段以第二设定时间间隔T2进行间隔开启，所述的第二设定时间间隔T2大于或者等于第一设定时间间隔T1。
作为本实施例的一种实施方式，所述的电磁加热装置的电磁加热功率可调，洗衣机控制电磁加热装置在加速脱水阶段的加热功率大于稳定脱水阶段的加热功率。
优选地，洗衣机控制电磁加热装置在低速稳定脱水阶段以第一加热功率P1进行加热内筒，在加速脱水阶段以第二加热功率P2进行加热内筒，在高速稳定脱水阶段以第三加热功率P3进行加热内筒，所述的第二加热功率P2＞第一加热功率P1≥第三加热功率P3。
作为本实施例的一种实施方式，本实施例洗衣机的末次漂洗程序包括漂洗进水阶段、漂洗洗涤阶段及漂洗排水阶段，洗衣机控制电磁加热装置至少在漂洗排水阶段开启。本实施例通过在漂洗过程中控制电磁加热装置开启，加热内筒，加热衣物后进入脱水程序，实现“热脱”效果，提升脱水效果，进一步降低衣物含水率。
进一步地，所述内筒的侧壁上设置排水孔，排水孔上安装控制其开闭的离心排水机构，所述的离心排水机构保持排水孔处于常闭状态，当内筒转速达到V0时，离心排水机构受内筒旋转离心力将排水孔打开。
洗衣机执行末次漂洗程序时，控制内筒以转速V0转动，进入漂洗排水阶段，控制电磁加热装置开启，当内筒以转速V0持续转动一设定时间T0时，控制电磁加热装置关闭。洗衣机在漂洗排水阶段，内筒的筒壁形成一层“离心薄水层”，此时控制电磁加热装置启动加热内筒，实现高温内筒约100℃，对湿衣物的加热烘水，进一步降低含水率。
进一步地，所述的电磁加热装置的电磁加热功率可调，洗衣机控制电磁加热装置在漂洗排水阶段的加热功率大于其它漂洗阶段的加热功率。
优选地，洗衣机控制电磁加热装置在漂洗进水阶段以第四加热功率P4进行加热内筒，在漂洗排水阶段以第五加热功率P5进行加热内筒，所述的第四加热功率P4≤第五加热功率P5。
作为本实施例的一种实施方式，所述的电磁加热装置的电磁加热功率可调，洗衣机的主控制器存储有洗衣机的衣物负载区间与电磁加热功率之间的对应关系：
当洗衣机检测到衣物负载处于对应的衣物负载区间时，洗衣机控制电磁加热装置以与该负载区间对应的电磁加热功率进行加热。
实施例三
如图1至图3所示，本实施例提供一种洗衣机，包括：
外筒4；
内筒5，设置在外筒4内；
电磁加热线圈8，设置在外筒4上；
以及电磁加热驱动器7，与所述电磁加热线圈8电连接，所述的电磁加热驱动器7 将交流电整流变成直流电，再将直流电转成高频交流电；
所述电磁加热驱动器7将高频交流电输出给所述电磁加热线圈8，由此产生高频交变磁场，所述内5在高频交变磁场中由于电磁感应产生感应涡流而发热，加热内筒5内的水。
本实施例洗衣机的加热/烘干程序启动，电流电压经过电磁加热驱动器7转换为直流电,使得直流电变为超过音频的高频交流电，将频率0-100KHz的高频交流电输出给所述电磁加热线圈8上，由此产生高频交变磁场；其电磁感应线作用在金属材质的内筒上，在金属内筒内因电磁感应就有强大的涡流产生，涡流克服内筒的内阻流动时完成电能向热能的转换，实现内筒发热，加热内筒内的水。
优选地，本实施例的洗衣机为一种无孔内筒前开式结构的滚筒洗衣机，结构简单，能够无需在内筒与外筒之间填充洗涤/漂洗水而极大的减少了洗衣机的洗涤用水量。避免了内筒与外筒之间污垢附着的可能。极大的提高了用户健康及用户体验，极大的节约了水资源。
本实施例洗衣机采用无孔内筒，洗涤时内筒独立盛放洗涤水，传统洗衣机的电阻丝加热方式无法实现无孔内筒洗衣机的洗涤水加热，又由于内筒在洗衣过程中需要转动，也无法在内筒内设置加热装置对内筒内的水进行加热，因此，本实施例的无孔内筒的洗衣机通过电磁加热线圈8加热内筒5的侧壁，内筒5的侧壁被电磁加热线圈8加热进而将热量传递给内筒5内的洗涤水，实现洗涤水的加热。
另外，由于现有洗衣机采用的电阻丝加热方式，电阻丝浸没在水里直接进行加热，由于水质环境较为复杂，随着时间的增长，电阻丝上沉积水垢，且由于安装位置的原因不易进行清洁，从而造成加热效率逐渐降低，甚至损坏。而本实施例采用电磁加热装置实现非接触式加热，则可避免上述问题，极大的延长了使用寿命，且能保持长期的高效率加热。
为了实现电磁加热，本实施例的内筒是由铁质材料制成可切割电磁加热线圈8的产生的交变磁力线而产生交变电流(即涡流)，涡流使内筒侧壁的载流子高速无规则运动，载流子互相碰撞、摩擦而产生热能，以加热内筒内的水。
作为本实施例的一种实施方式，本实施例所述的电磁加热线圈8设置在外筒4的周侧壁内壁面上，所述的电磁加热线圈8由绝缘材质的封装壳体10进行封装，所述的封装壳体10具有用于与外筒连接的连接结构。
本实施例所述电磁加热线圈8是高频谐振线圈,所述线圈由铜线同心圆绕制，电磁加热线圈8通过封装壳体10封装，避免水与电磁加热线圈8的接触，提高可靠性和安全性。
作为本实施例的一种实施方式，本实施例的电磁加热线圈8的背面安装多根磁条12，吸收磁感线，减少磁感线外泄。
作为本实施例的一种实施方式，本实施例所述的洗衣机还包括与电磁加热驱动器电连接的谐振电路以及与谐振电路耦合的温度检测电路。本实施例通过温度检测电路检测反馈电磁加热驱动器7的电流，进行反馈测定出内筒5内的水温。
作为本实施例的一种实施方式，本实施例所述的外筒4上设置定位装置，所述的定位装置具有可伸缩的定位柱，所述的内筒5上具有用于与定位柱配合的定位孔，所述定位装置的定位柱伸出与定位孔相配合将内筒5锁定。本实施例通过定位装置将内筒5锁定，同时配合检测反馈电磁加热驱动器7的电流，进行反馈测定出内筒5内的水温的测温方法，可以提高测温的精准度。
本实施例的滚筒洗衣机具有机壳1，机壳1包括：上台面板17，前面板，后背板和底板。底板上安装固定了底脚9，用于支撑整个洗衣机。机壳1内部具有外筒4，外筒4内同轴设置了内筒5。外筒4主要目的为了收集内筒5的排水及内筒5高速离心脱水的排水。内筒5旋转，优选的是设置了提升筋6，不断的提升跌落摔打衣物，以便洗净衣物。内筒5是无孔结构的，外筒4具有中心安装孔，安装固定了轴承。与内筒5紧固连接的内筒轴穿过所示轴承并连接驱动电机。内筒5前部筒口上安装可开启/闭合的内筒门14，进而实现内筒5为密封舱结构15。
为了实现向本实施例的无孔内筒内进水，本实施例的滚筒洗衣机的驱动电机通过内筒轴与内筒5传动连接带动内筒5转动，所述的内筒轴内具有连通内筒5内部的中空通道，洗衣机的进水管路与内筒轴的中空通道相连通。
本实施例的内筒5上设置用于连通内筒5与外界环境以平衡内筒内部气压的气压平衡机构。
进水时，内筒的密封舱内的气体受压可以通过该均平衡机构溢出，保证气压平衡。
突然断水时，外部大气可以迅速进入内筒的密封舱，并破坏倒吸，保证气压平衡，避免洗涤水被吸入自来水管网。
其他比如脱水时，该气压平衡机构也可以保证内筒气压平衡。
作为本实施例的一种实施方式，所述的气压平衡机构包括设置在内筒5上的均压孔道，所述均压孔道连通内筒5内部的一端设置在内筒5上靠近旋转中心轴位置处且始终高于内筒5内的最高水位位置。
具体地，所述的均压孔道开设在内筒轴上连通内筒5内部与外界环境，所述内筒5内的最高水位低于内筒轴。这样可以防止内筒5内的水由均压孔道流出。
本实施例所述均压孔道包括第一孔道段和第二孔道段，第一孔道段与中空通道相平行设置，其一端连通内筒内部，第二孔道段的一端与第一孔道段相连通，另一端延伸至内筒轴的外周壁上与外筒的内部相通。优选地，所述的第二孔道段与第一孔道段相垂直设置形成L型的均压孔道。
本实施例提供一种内筒前开式滚筒洗衣机，内筒5上设置内筒门14，实现内筒5封闭空间洗涤，避免内筒5的衣物出来的可能，及衣物受压及摔打导致由内筒流出或者飞溅出水，避免了内、外筒之间污垢附着的可能，真正实现了滚筒的筒间无水。
本实施例的洗衣机具有内筒门锁锁定到位的门锁检测装置，确保内筒门锁定到位，确保锁定判定准确率100％，由于滚筒脱水转速会达到1600转/分钟，内筒上的内筒门如果未能锁定好，将会发生安全事故，极大的提高了机器的安全性，用户健康及用户体验。
为了实现无孔内筒的排水，本实施例的内筒侧壁上开设排水孔，排水孔上安装离心排水机构，离心排水机构保持排水孔的常闭状态以形成无孔内筒，独立盛放洗涤水，当需要排水时，控制内筒高速转动，离心机构在高速转动的离心作用下降排水孔打开，洗涤水由排水孔排出。优选地，所述的离心排水机构设置在提升筋6的内部腔室内。
本实施例的壳体前板具有衣物投放口以及安装在衣物投放口上控制其开闭的机门2。
本实施例的壳体前板上部设置洗衣机的主控制器3，壳体1内部位于外筒4的上方设置洗涤剂投放盒16，用于洗涤剂的投放。
本实施例的外筒4的底部连接排水装置13，排水装置13连接用于将水引出壳体1的排水管11。
本实施例同时提供一种洗衣机的控制方法，洗衣机在加热内筒内的水的过程中，通过检测分析计算电磁加热驱动器7的电流反馈测定内筒内的水温。
本实施例的洗衣机采用电磁加热的方式对洗涤水进行加热，通过使用一体式谐振电路来进行洗涤水加热温度测量。
电磁加热过程中，电磁加热线圈8温度基本变化不大，但是内筒的筒壁温度与水温一致，导致内筒的筒壁温度升高，电阻增大，其电阻是一个变量RT。
金属内筒的涡流也影响电磁加热线圈8共同形成一个振荡电路，电磁加热线圈8本身具有电阻R，金属内筒的涡流对电磁加热线圈8也形成一个变化的电阻Rx。进一步的对电磁加热驱动器的电流产生影响，对电磁加热驱动器的电流分析计算，进行反馈出测定内筒水温。
因此，本实施例的洗衣机利用电磁加热原理，通过电磁加热线圈8与金属内筒的筒壁之间相互电磁感应变化测定内筒5内的水温，减少了温度传感器的设置，简化了洗衣机的结构，降低了洗衣机的成本。
进一步地，洗衣机的主控制器内存储有各设定水温T1、T2、......、Tn分别对应的电磁加热驱动器的设定电流区间N1、N2、......、Nn，洗衣机在加热内筒内的水的过程中，当检测分析计算得到电磁加热驱动器的电流I处于设定电流区间Nn时，洗衣机内筒内的水温即为Tn。
本实施例的洗衣机在加热内筒内的水的过程中，控制内筒转动。通过不断旋转内筒均温手段让内筒整个表面温度均匀，实现内筒水与内筒换热进而被均匀加热。
为了实现内筒内的水的测温，作为本实施例的一种实施方式，洗衣机在加热内筒内的水的过程中，控制内筒转动，每隔设定时间t0通过检测分析计算电磁加热驱动器的电流反馈测定内筒内的水温。这样，在不影响加热过程的同时即同步实现了测温，简单便捷。
为了实现内筒内的水的测温，作为本实施例的一种实施方式，洗衣机在加热内筒内的水的过程中，控制内筒转动，每隔设定时间t0，控制内筒停止转动，控制所述定位装置的定位柱伸出与定位孔相配合将内筒锁定，通过检测分析计算电磁加热驱动器的电流反馈测定内筒内的水温。这样，通过定位装置将内筒锁定后再进行测温，避免电流波动，测量结果更为准确。
作为本实施例的一种实施方式，洗衣机根据加热内筒内的水的过程控制调整电磁加热线圈的加热功率。
本实施例的加热功率可调以满足不同工况：
根据负载多少，设定温度的高低，水位等参数进行变功率电磁加热：如高水位、多负载情况下可以高功率加热；而低水位、小负载情况下可以低功率加热。
又如前期电磁加热功率较大运行，马上快达到设定温度时候，进行小功率加热，实现精准温度加热。
又如用户设定高温90℃高温煮洗，可以使用大功率加热，缩短时间；用户设定30℃低温加热洗，可以采用低功率电磁加热。
本实施例洗衣机电磁加热的功率可调的方法是多种，具体包括：
洗衣机通过电磁加热驱动器提高激励脉冲频率，工作电路在失调状态下，电磁加热线圈的加热功率可以调小；
或者，洗衣机通过电磁加热驱动器间隙施加激励脉冲，使得电磁加热线圈断续加热内筒，控制断续加热内筒的间隔时间来调节洗衣机电磁加热功率；
或者，所述电磁加热驱动器为可控整流模块，通过控制电压改变可控整流模块整流后的直流输出电压来改变电磁加热线圈的加热功率。
实施例四
如图1及图4所示，本实施例提供一种洗衣机，包括：
外筒4；
内筒5，设置在外筒4内；
电磁加热线圈8，设置在外筒4上；
以及电磁感应线圈18，设置在内筒5上，且位于可与所述电磁加热线圈8相对的位置处。
本实施例的洗衣机通过电磁加热线圈8采用电磁加热的方式加热内筒5的金属筒壁，内筒5加热筒内的洗涤水，实现洗衣机的加热洗功能。本实施例的洗衣机针对采用电磁加热线圈8进行加热的方式，在内筒上设置电磁感应线圈18，电磁感应线圈18在加热的过程中产生的交变磁场反作用于电磁加热线圈8，由于电磁感应线圈18设置在内筒5内随着水温的升高温度升高，升高温度后的电磁感应线圈18内的涡流改变，反作用于电磁加热线圈8的交变磁场也会改变。电磁感应线圈18影响电磁加热线圈8共同形成一个振荡电路，电磁加热线圈8本身具有电阻R，电磁感应线圈18对电磁加热线圈8形成一个变化的电阻R2；进一步的，对电磁加热线圈8的电磁加热驱动器的电流产生影响，通过对电磁加热驱动器的电流分析计算，进行反馈测定出内筒5内的水温。
因此，本实施例的洗衣机利用电磁加热原理，通过电磁加热线圈8与电磁感应线圈18之间相互电磁感应变化测定内筒5内的水温，减少了温度传感器的设置，简化了洗衣 机的结构，降低了洗衣机的成本。
优选地，本实施例的洗衣机为一种无孔内筒前开式结构的滚筒洗衣机，结构简单，能够无需在内筒与外筒之间填充洗涤/漂洗水而极大的减少了洗衣机的洗涤用水量。避免了内筒与外筒之间污垢附着的可能。极大的提高了用户健康及用户体验，极大的节约了水资源。
本实施例洗衣机采用无孔内筒，洗涤时内筒独立盛放洗涤水，传统洗衣机的电阻丝加热方式无法实现无孔内筒洗衣机的洗涤水加热，又由于内筒在洗衣过程中需要转动，也无法在内筒内设置加热装置对内筒内的水进行加热，因此，本实施例的无孔内筒的洗衣机通过电磁加热线圈8加热内筒5的侧壁，内筒5的侧壁被电磁加热线圈8加热进而将热量传递给内筒5内的洗涤水，实现洗涤水的加热。
另外，由于现有洗衣机采用的电阻丝加热方式，电阻丝浸没在水里直接进行加热，由于水质环境较为复杂，随着时间的增长，电阻丝上沉积水垢，且由于安装位置的原因不易进行清洁，从而造成加热效率逐渐降低，甚至损坏。而本实施例采用电磁加热装置实现非接触式加热，则可避免上述问题，极大的延长了使用寿命，且能保持长期的高效率加热。
为了实现电磁加热，本实施例的内筒是由铁质材料制成可切割电磁加热线圈8的产生的交变磁力线而产生交变电流(即涡流)，涡流使内筒侧壁的载流子高速无规则运动，载流子互相碰撞、摩擦而产生热能，以加热内筒内的水。
进一步地，本实施例所述的电磁加热线圈8设置在外筒4的周侧壁底部，所述的电磁感应线圈18设置在内筒5的周侧壁内壁面上；在内筒转动的过程中，所述的电磁感应线圈18与电磁加热线圈8处于外筒4的同一径向上。这样，在加热过程中，需要控制内筒5转动至电磁感应线圈18与电磁加热线圈8处于相对的位置以实现测温。
为了电磁感应线圈18与电磁加热线圈8处于相对的位置以实现测温，本实施例所述的外筒4上设置定位装置，所述的定位装置具有可伸缩的定位柱，所述的内筒5上具有用于与定位柱配合的定位孔；所述定位装置的定位柱伸出与定位孔相配合将内筒锁定时，所述的电磁感应线圈18与电磁加热线圈8处于相对位置。
作为本实施例的一种实施方式，本实施例所述的电磁感应线圈18由绝缘材质的封装壳体10进行封装，所述的封装壳体10具有用于与内筒连接的连接结构。进一步地，所述的电磁加热线圈8设置在外筒4的周侧壁内壁面上，所述的电磁加热线圈8由绝缘 材质的封装壳体10进行封装，所述的封装壳体10具有用于与外筒连接的连接结构。
本实施例所述电磁加热线圈8、电磁感应线圈18是高频谐振线圈,所述线圈由铜线同心圆绕制。电磁感应线圈18、电磁加热线圈8分别通过封装壳体10封装，避免水与电磁感应线圈18、电磁加热线圈8的接触，提高可靠性和安全性。
本实施例的洗衣机还包括与所述电磁加热线圈8电连接的电磁加热驱动器7，所述的电磁加热驱动器7将交流电整流变成直流电，再将直流电转成高频交流电；电磁加热驱动器7将高频交流电输出给所述电磁加热线圈8，由此产生高频交变磁场，所述内筒在高频交变磁场中由于电磁感应产生感应涡流而发热，加热内筒5内的水。
作为本实施例的一种实施方式，本实施例的电磁加热线圈8、电磁感应线圈18的背面均安装多根磁条12，吸收磁感线，减少磁感线外泄。
作为本实施例的一种实施方式，本实施例所述的洗衣机还包括与电磁加热驱动器7电连接的谐振电路以及与谐振电路耦合的温度检测电路。本实施例通过温度检测电路检测反馈电磁加热驱动器7的电流，进行反馈测定出内筒5内的水温。
本实施例同时提供一种洗衣机的控制方法，洗衣机包括电磁加热线圈8和与电磁加热线圈8电连接的电磁加热驱动器7，所述控制方法包括：
洗衣机在加热内筒内的水的过程中，控制内筒处于电磁感应线圈与电磁加热线圈相对的位置，通过检测分析计算电磁加热驱动器的电流反馈测定内筒内的水温。
本实施例洗衣机的加热/烘干程序启动，电流电压经过电磁加热驱动器7转换为直流电,使得直流电变为超过音频的高频交流电，将频率0-100KHz的高频交流电输出给所述电磁加热线圈8上，由此产生高频交变磁场；其电磁感应线作用在金属材质的内筒上，在金属内筒内因电磁感应就有强大的涡流产生，涡流克服内筒的内阻流动时完成电能向热能的转换，实现内筒发热，加热内筒内的水。
本实施例的洗衣机采用电磁加热的方式对洗涤水进行加热，通过使用一体式谐振电路来进行洗涤水加热温度测量。
本实施例的洗衣机加热过程中可以通过定位装置定位锁定内筒5，实现内筒5上内表面上固定的电磁感应线圈18与外筒上固定的电磁加热线圈8相对。
电磁加热过程中，电磁加热线圈8温度基本变化不大，但是内筒内表面的电磁感应线圈18与水温一致，导致电磁感应线圈18温度升高，电阻增大，其电阻是一个变量R1。
电磁感应线圈18进而影响电磁加热线圈8共同形成一个振荡电路，电磁加热线圈8 本身具有电阻R，电磁感应线圈18对电磁加热线圈8也形成一个变化的电阻R2。进一步的，对电磁加热驱动器7的电流产生影响。对电磁加热驱动器7的电流分析计算，进行反馈出测定内筒水温。
进一步地，洗衣机的主控制器内存储有各设定水温T1、T2、......、Tn分别对应的电磁加热驱动器的设定电流区间N1、N2、......、Nn，洗衣机在加热内筒内的水的过程中，当检测分析计算得到电磁加热驱动器的电流I处于设定电流区间Nn时，洗衣机内筒内的水温即为Tn。
本实施例的洗衣机在加热内筒内的水的过程中，控制内筒转动。通过不断旋转内筒均温手段让内筒整个表面温度均匀，实现内筒水与内筒换热进而被均匀加热。
因此，为了实现在加热过程的测温，本实施例的洗衣机每隔设定时间t0，控制内筒停止转动，控制所述定位装置的定位柱伸出与定位孔相配合将内筒锁定时，所述的电磁感应线圈与电磁加热线圈处于相对位置，通过检测分析计算电磁加热驱动器的电流反馈测定内筒内的水温。
作为本实施例的一种实施方式，洗衣机根据加热内筒内的水的过程控制调整电磁加热线圈的加热功率。
本实施例的加热功率可调以满足不同工况：
根据负载多少，设定温度的高低，水位等参数进行变功率电磁加热：如高水位、多负载情况下可以高功率加热；而低水位、小负载情况下可以低功率加热。
又如前期电磁加热功率较大运行，马上快达到设定温度时候，进行小功率加热，实现精准温度加热。
又如用户设定高温90℃高温煮洗，可以使用大功率加热，缩短时间；用户设定30℃低温加热洗，可以采用低功率电磁加热。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种洗衣机，其特征在于，包括：
    外筒，所述的外筒上设置排水口；
    内筒，设置在外筒内，具有独立盛放洗涤水的洗涤腔室；
    及电磁加热装置，设置在外筒内，对应加热内筒的筒壁；
    所述的电磁加热装置朝向排水口呈倾斜向下设置，和/或所述外筒的筒壁由电磁加热装置设置位置至排水口位置之间呈倾斜向下设置。
  2. 根据权利要求1所述的洗衣机，其特征在于，所述的电磁加热装置包括电磁加热线圈和包覆所述电磁加热线圈的封装壳体，所述的封装壳体具有与水平面平行的壳体上表面，所述的电磁加热装置沿外筒的中心轴线方向与水平面呈夹角a设置，使得电磁加热装置的壳体上表面朝向排水口呈倾斜向下设置，所述的夹角a＜90°。
  3. 根据权利要求2所述的洗衣机，其特征在于，所述的电磁加热装置沿垂直于外筒的中心轴线方向与水平面呈夹角b设置，所述的夹角b＜90°。
  4. 根据权利要求1所述的洗衣机，其特征在于，所述的电磁加热装置包括电磁加热线圈和包覆所述电磁加热线圈的封装壳体，所述的封装壳体具有与水平面平行的壳体上表面，所述的壳体上表面沿外筒的中心轴线方向与水平面呈夹角a设置，所述的夹角a＜90°，使得壳体上表面朝向排水口呈倾斜向下设置。
  5. 根据权利要求1所述的洗衣机，其特征在于，所述的电磁加热装置包括电磁加热线圈和包覆所述电磁加热线圈的封装壳体，所述的封装壳体具有壳体上表面，所述壳体上表面沿外筒的中心轴线方向向下弯曲，使得电磁加热装置的壳体上表面朝向排水口呈倾斜向下设置。
  6. 根据权利要求5所述的洗衣机，其特征在于，所述壳体上表面的至少一侧沿外筒的周向方向向下弯曲。
  7. 根据权利要求1所述的洗衣机，其特征在于，所述外筒的侧壁具有沿中心轴线延伸的凹槽结构，所述的电磁加热装置安装在凹槽结构内，所述的排水口开设在凹槽结构的底壁上，所述的电磁加热装置与排水口之间轴向间隔设置。
  8. 根据权利要求2-7任意一项所述的洗衣机，其特征在于，所述的电磁加热装置的电磁加热线圈呈与所述内筒的侧壁形状相匹配的弧形布置。
  9. 根据权利要求1-7任意一项所述的洗衣机，其特征在于，所述电磁加热装置的 壳体上表面为光滑平面。
  10. 根据权利要求1-7任意一项所述的洗衣机，其特征在于，所述电磁加热装置的壳体上表面上铺设隔热层。
PCT/CN2021/119236 2020-10-19 2021-09-18 一种洗衣机 WO2022083377A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011118168.4A CN114381894A (zh) 2020-10-19 2020-10-19 一种洗衣机
CN202011118168.4 2020-10-19

Publications (1)

Publication Number Publication Date
WO2022083377A1 true WO2022083377A1 (zh) 2022-04-28

Family

ID=81193211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/119236 WO2022083377A1 (zh) 2020-10-19 2021-09-18 一种洗衣机

Country Status (2)

Country Link
CN (1) CN114381894A (zh)
WO (1) WO2022083377A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022206258A1 (zh) * 2021-04-02 2022-10-06 青岛海尔滚筒洗衣机有限公司 一种电磁加热模块、制造工艺及衣物处理装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050015892A1 (en) * 2003-07-23 2005-01-27 Samsung Electronics Co., Ltd. Drum washing machine
CN102234898A (zh) * 2010-04-28 2011-11-09 株式会社东芝 洗衣机
CN105040349A (zh) * 2014-04-23 2015-11-11 日立空调·家用电器株式会社 滚筒式洗衣机
CN110387697A (zh) * 2018-04-19 2019-10-29 青岛海尔滚筒洗衣机有限公司 一种衣物处理装置
CN111041761A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111691129A (zh) * 2019-03-13 2020-09-22 青岛海尔滚筒洗衣机有限公司 一种滚筒洗衣机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050015892A1 (en) * 2003-07-23 2005-01-27 Samsung Electronics Co., Ltd. Drum washing machine
CN102234898A (zh) * 2010-04-28 2011-11-09 株式会社东芝 洗衣机
CN105040349A (zh) * 2014-04-23 2015-11-11 日立空调·家用电器株式会社 滚筒式洗衣机
CN110387697A (zh) * 2018-04-19 2019-10-29 青岛海尔滚筒洗衣机有限公司 一种衣物处理装置
CN111041761A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111691129A (zh) * 2019-03-13 2020-09-22 青岛海尔滚筒洗衣机有限公司 一种滚筒洗衣机

Also Published As

Publication number Publication date
CN114381894A (zh) 2022-04-22

Similar Documents

Publication Publication Date Title
CN210596687U (zh) 一种洗衣机
WO2022083377A1 (zh) 一种洗衣机
CN106968080A (zh) 一种利用蒸汽进行衣物洗涤的方法
WO2022237412A1 (zh) 一种衣物处理设备的控制方法及衣物处理设备
BR112013009447B1 (pt) Máquina de lavar
KR20040085509A (ko) 증기분사식 드럼세탁기
WO2022052770A1 (zh) 一种洗衣机的控制方法
CN112048883A (zh) 一种洗衣机及其控制方法
CN105887425A (zh) 一种洗衣机判断、控制水位的方法和装置
WO2022052771A1 (zh) 一种洗衣机及其控制方法
WO2020151558A1 (zh) 一种洗衣机的控制方法及免清洗洗衣机
CN112210946A (zh) 一种洗衣机及其控制方法
CN114164612A (zh) 一种洗衣机及其控制方法
CN110387696A (zh) 一种洗衣机
WO2022052819A1 (zh) 一种洗衣机
CN114164611A (zh) 一种洗衣机及其控制方法
WO2020253600A1 (zh) 一种滚筒洗衣机
WO2022095829A1 (zh) 一种洗衣机及其控制方法
KR20140064285A (ko) 수위/도어개폐감지장치 및 이를 갖는 세탁기
WO2020135377A1 (zh) 一种滚筒洗衣机的控制方法及滚筒洗衣机
CN112575524A (zh) 滚筒洗衣机的筒干燥方法
CN112064288A (zh) 一种洗衣机及其控制方法
WO2022062784A1 (zh) 一种洗衣机及其控制方法
CN112210945A (zh) 一种洗衣机及其控制方法
KR101668697B1 (ko) 세탁장치의 제어방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21881796

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21881796

Country of ref document: EP

Kind code of ref document: A1