CN112481945B - Washing machine and control method thereof - Google Patents

Abstract

The invention provides a washing machine and a control method thereof, wherein the washing machine comprises: an inner cylinder having a washing chamber for independently holding washing water; an outer cylinder sleeved outside the inner cylinder; the electromagnetic heating device is arranged on the side wall of the outer cylinder and corresponds to the side wall of the inner cylinder. The invention provides a washing machine, which is provided with an electromagnetic heating device, wherein the electromagnetic heating device is used for heating the side wall of an inner cylinder, and the side wall of the inner cylinder is heated by the electromagnetic heating device so as to transfer heat to washing water in the inner cylinder, thereby realizing the heating of the washing water.

Description

Washing machine and control method thereof

Technical Field

The invention relates to the technical field of washing equipment, in particular to a washing machine and a control method thereof.

Background

The washing machine is used as a household appliance which is most widely used in daily life of people, helps people get rid of the trouble of washing clothes, and brings great convenience to people. However, the existing washing machine generally comprises an inner barrel and an outer barrel, a plurality of dewatering holes are distributed on the barrel wall of the inner barrel, and in the washing process, washing water between the inner barrel and the outer barrel is not utilized, so that the waste of the washing water is caused, dirt generated in the washing process can be accumulated along with the flowing of water into the space between the inner barrel and the outer barrel, the washing effect can be influenced due to the accumulation of the dirt along with long-time use, and the use experience of users is reduced.

In order to solve the problems, a number of patents, such as 201410215346.3, are also provided, and the invention relates to a drum washing machine, which comprises a box body, wherein an inner drum and an outer drum are arranged in the box body, a door seal is arranged between the outer drum and the box body, the inner drum is connected with a driving device, the inner drum is a non-porous inner drum, the inner drum is a conical drum with small diameter at the bottom and large diameter at the opening, the opening of the inner drum is folded inwards in an arc shape, a water inlet guide pipe is arranged on the door seal, one end of the water inlet guide pipe is connected with a rapid washing water heating device, the other end of the water inlet guide pipe penetrates through the door seal to extend into the inner drum, and a water outlet and a water pressure detection device are arranged on the outer drum. According to the technical scheme, the inner cylinder is a non-porous inner cylinder, water inlet of the inner cylinder is realized through the water inlet guide pipe arranged on the door seal, and water is discharged in the dehydration process through the shape of the inner cylinder, so that water can be prevented from being stored between the inner cylinder and the outer cylinder, and the water consumption for washing is greatly saved.

Said invention provides a drum washing machine with hole-free inner drum, and solves the problems of waste of water stored between inner drum and outer drum and accumulation of dirt between inner drum and outer drum, but some functional elements required to be set on the outer drum can not be set, so that the functionality of the hole-free inner drum washing machine can be reduced. For example, most existing washing machines realize the effect of heating washing water to promote washing by arranging a heating pipe in an outer tub, and the washing machine without a hole in the inner tub can not arrange the heating pipe on the outer tub any more, so that the heating washing can not be realized any more. And heating washing is important for improving washing effect, and is increasingly used by wide users.

In view of this, the present invention has been made in view of how to realize the heating and washing functions of a non-porous inner drum washing machine.

Disclosure of Invention

In order to solve the above problems, a first aspect of the present invention provides a washing machine, specifically, the following technical solution is adopted:

a washing machine, comprising:

an inner cylinder having a washing chamber for independently holding washing water;

an outer cylinder sleeved outside the inner cylinder;

the electromagnetic heating device is arranged on the side wall of the outer cylinder and corresponds to the side wall of the inner cylinder.

Further, the electromagnetic heating device is arranged on the inner side wall of the outer cylinder;

preferably, the electromagnetic heating device is arranged at the lowest position of the inner side wall of the outer cylinder.

Further, the electromagnetic heating device comprises an electromagnetic coil and a mounting frame, wherein the electromagnetic coil is fixed on the mounting frame, and the mounting frame is fixed on the inner side wall of the outer cylinder;

preferably, the mounting frame comprises a mounting housing made of a non-metallic material, and the electromagnetic coil is encapsulated in the mounting housing.

Further, the mounting frame comprises a fixing part, an assembling part matched with the fixing part is arranged on the inner side wall of the outer cylinder, and the fixing part is fixedly connected with the assembling part through a connecting piece.

Further, an installation groove is formed in the inner side wall of the outer barrel, the installation frame is installed in the installation groove, and the installation frame is provided with a transition curved surface in transition connection with the inner side wall of the outer barrel.

Further, the electromagnetic heating device comprises an electromagnetic coil, a mounting groove is formed in the inner side wall of the outer cylinder, the electromagnetic coil is arranged in the mounting groove, and a sealing plate made of a nonmetallic material is mounted on a notch of the mounting groove in a sealing mode.

Further, the distance between the upper surface of the electromagnetic coil and the outer side wall surface of the inner cylinder is H, and the H satisfies the following conditions: h is more than or equal to 0.4cm and less than or equal to 10cm;

preferably, said H satisfies: 1 cm-3 cm;

further preferably, said H satisfies: 2.+ -. 0.5cm.

Further, the electromagnetic heating device comprises a heat radiating piece for radiating heat of the electromagnetic coil;

preferably, the heat sink is provided on the mounting frame or the sealing plate.

The second object of the present invention is to provide a control method of a washing machine, specifically, the following technical scheme is adopted:

a control method of washing machine, in the washing and/or rinsing course of washing machine, control the electromagnetic heating device to start, control the inner cylinder to rotate and heat the washing water at the same time.

Further, the washing machine comprises a temperature detection device for detecting the temperature of the washing water, and when the temperature detection device detects that the temperature of the washing water reaches the set temperature, the electromagnetic heating device is controlled to stop working;

or the washing machine comprises a device for detecting the water inflow Q and the water inflow initial temperature T0, the washing machine receives the target heating temperature T set by a user, the heating time T of the washing machine is calculated, and when the working time of the electromagnetic heating device reaches the heating time T, the electromagnetic heating device is controlled to stop working.

The invention provides a washing machine, which is provided with an electromagnetic heating device, wherein the electromagnetic heating device is used for heating the side wall of an inner cylinder, and the side wall of the inner cylinder is heated by the electromagnetic heating device so as to transfer heat to washing water in the inner cylinder, thereby realizing the heating of the washing water.

Drawings

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

FIG. 2 is an exploded view of an inner tub door of a washing machine according to an embodiment of the present invention;

FIG. 3 is a second exploded view of an inner tub door of a washing machine according to an embodiment of the present invention;

FIG. 4 is a front view of an inner tub door of a washing machine according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a washing machine taken along the A-A plane in FIG. 4 according to an embodiment of the present invention;

FIG. 6 is a partially enlarged view of a washing machine according to an embodiment of the present invention;

FIG. 7 is a partial enlarged view of a washing machine according to an embodiment of the present invention;

FIG. 8 is a partially enlarged view of a washing machine according to an embodiment of the present invention;

FIG. 9 is a schematic view of a structure of a second embodiment of the present invention;

FIG. 10 is a top view of an inner tub of a second embodiment of the present invention;

FIG. 11 is an exploded view of an inner tub door installation of a washing machine according to an embodiment of the present invention;

FIG. 12 is a schematic view of an inner tub door of a washing machine according to an embodiment of the present invention;

FIG. 13 is an assembly view of a handle and a tongue of a second washing machine according to the embodiment of the present invention;

FIG. 14 is a schematic perspective view of a lock base of a washing machine according to a second embodiment of the present invention;

fig. 15 is a schematic perspective view of a lock tongue of a second embodiment of the present invention;

FIG. 16 is a schematic view showing the structure of a third washing machine according to an embodiment of the present invention;

FIG. 17 is a partial enlarged view of FIG. 16 of a triple laundry machine according to an embodiment of the present invention;

FIG. 18 is a schematic structural view of an electromagnetic heating device of a third washing machine according to an embodiment of the present invention;

FIG. 19 is a schematic view showing a structure of a fourth washing machine according to an embodiment of the present invention;

FIG. 20 is a cross-sectional view I of a fourth embodiment of the present invention taken along the C-C plane of FIG. 19;

FIG. 21 is a second cross-sectional view of the fourth embodiment of the present invention taken along the C-C plane of FIG. 19;

FIG. 22 is a sectional view of an assembled outer tub, inner tub and inner tub door of a fifth washing machine according to an embodiment of the present invention;

FIG. 23 is a partial enlarged view of FIG. 22 of the fifth washing machine of the embodiment of the present invention (inner tub door locked in place);

FIG. 24 is a partial enlarged view of FIG. 22 of the fifth washing machine of the present invention (inner drum door locked out/unlocked state).

Detailed Description

The following describes a washing machine and a control method thereof in detail with reference to the accompanying drawings:

as shown in fig. 1 to 24, the present embodiment provides a drum washing machine of a front open type structure of a non-porous inner tub, which has a simple structure and can greatly reduce the amount of washing water used for the washing machine without filling washing/rinsing water between the inner tub and the outer tub. Avoiding the possibility of dirt adhesion between the inner cylinder and the outer cylinder. The health and the user experience of the user are greatly improved, and the water resource is greatly saved.

The drum washing machine of the present embodiment has a cabinet 1, the cabinet 1 including: top deck 2, front deck, back deck and bottom deck. A foot 9 is fixed on the bottom plate for supporting the whole washing machine. The casing 1 has an outer cylinder 19, and an inner cylinder 18 is coaxially provided in the outer cylinder 19. The outer tube 19 is mainly used for collecting the drain water of the inner tube 18 and the drain water of the inner tube 18 by high-speed centrifugal dehydration. The inner tub 18 rotates, preferably with the lifting ribs 10, to continuously lift, drop and beat the laundry to wash the laundry. The inner cylinder 18 is of a non-porous structure, and the outer cylinder 19 is provided with a central mounting hole for mounting and fixing the bearing 11. An inner cylinder shaft 12, which is fixedly connected to an inner cylinder 18, passes through the bearing 11 shown and is connected to a drive motor 15. An openable/closable inner cylinder door 6 is mounted on the front cylinder opening of the inner cylinder 18, thereby realizing a sealed cabin structure of the inner cylinder 18.

In order to realize water inflow into the nonporous inner cylinder of the embodiment, the driving motor 15 of the drum washing machine of the embodiment is in transmission connection with the inner cylinder 18 through the inner cylinder shaft 12 to drive the inner cylinder 18 to rotate, a hollow channel communicated with the inner cylinder 18 is formed in the inner cylinder shaft 12, and the water inflow pipeline 17 is communicated with the hollow channel of the inner cylinder shaft 12.

The inner cylinder 18 of the present embodiment is provided with an air pressure balancing mechanism for communicating the inner cylinder 18 with the external environment to balance the air pressure inside the inner cylinder.

When water is fed, the air in the sealed cabin of the inner cylinder is pressurized and overflows through the balance mechanism, so that air pressure balance is ensured.

When water is suddenly cut off, the external atmosphere can rapidly enter the sealed cabin of the inner cylinder, reverse suction is destroyed, air pressure balance is ensured, and washing water is prevented from being sucked into a tap water pipe network.

The air pressure balance mechanism can ensure the air pressure balance of the inner cylinder when other materials are dehydrated.

As an implementation manner of this embodiment, the air pressure balancing mechanism includes a pressure equalizing hole channel disposed on the inner cylinder 18, where one end of the pressure equalizing hole channel, which is connected to the inner cylinder 18, is disposed on the inner cylinder 18 near the rotation center axis and is always higher than the highest water level position in the inner cylinder 18.

Specifically, the pressure equalizing pore canal is formed on the inner cylinder shaft 12 to communicate the interior of the inner cylinder 18 with the external environment, and the highest water level in the inner cylinder 18 is lower than the inner cylinder shaft 12. This prevents water in the inner cartridge 18 from exiting the pressure equalization ports.

The pressure equalizing duct in this embodiment includes a first duct section and a second duct section, the first duct section is disposed parallel to the hollow passage, 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 peripheral wall of the inner cylinder shaft to be communicated with the inside of the outer cylinder. Preferably, the second duct section is perpendicular to the first duct section to form an L-shaped pressure equalizing duct.

The embodiment provides an open drum type washing machine before inner tube, sets up the inner tube door on the inner tube, realizes that the inner tube enclosure space washs, avoids the clothing of inner tube to come out probably, and clothing pressurized and beat and lead to flowing out or splash out water by the inner tube, has avoided the possibility that dirt adheres to between inner and outer tube, has really realized the barrel of cylinder and has no water.

The washing machine of this embodiment has the lock detection device that inner tube lock locked in place, ensures that inner tube door locks in place, ensures that locking judgement rate of accuracy is 100%, because cylinder dehydration rotational speed can reach 1600 revolutions per minute, if the inner tube door on the inner tube can not lock well, will take place the incident, very big improvement the security of machine, user health and user experience.

Example 1

As shown in fig. 1 to 8, a washing machine of the present embodiment includes:

an inner tub 18 having a washing chamber for separately holding washing water;

an inner cylinder door 6 which is mounted on the opening of the inner cylinder 18 in an openable and closable manner;

the inner barrel door 6 includes a door body inner shell 603, a door body outer shell 601 and a door body inner liner 604,

the door liner 604 is clamped and fixed between the door inner shell 603 and the door outer shell 601.

In the embodiment, the inner cylinder 18 is sealed by installing the openable and closable inner cylinder door 6 at the cylinder opening of the inner cylinder 18, so that a washing chamber for containing washing water is formed.

As an implementation manner of this embodiment, the door liner 604 in this embodiment includes a blocking portion matching the shape of the nozzle of the inner cylinder 18 and a connecting portion 615 located at the outer periphery of the blocking portion, and the connecting portion 615 is clamped and fixed between the door inner shell 603 and the door outer shell 601.

Further, the blocking portion includes a blocking surface 613 and a transition wall 614 extending along an axial direction of the inner cylinder 18 along an outer periphery of the blocking surface 613, and the connecting portion 615 is an annular connecting wall formed by flanging an outer periphery of the transition wall 614.

In order to achieve the fixed installation of the door inner liner 604, the door inner shell 603 according to the present embodiment includes an annular inner shell body, an inner shell connecting portion and an inner shell pressing portion 611 disposed on the inner shell body; the door body casing 601 comprises an annular casing body, a casing connecting part and a casing extruding part 612, wherein the casing connecting part and the casing extruding part are arranged on the casing body; the inner shell connecting portion and the outer shell connecting portion are fixedly connected through a connecting piece, and the inner shell extrusion portion 611 and the outer shell extrusion portion 612 clamp and fix the connecting portion 615 of the door liner 604.

Further, the door body casing 601 according to the present embodiment includes a casing supporting portion 610 disposed on the casing body, where the supporting portion 610 extends to the plugging portion along the axial direction of the inner cylinder for extrusion supporting.

The door liner 604 of the present embodiment is fixed by being pressed by the inner shell pressing portion 611 and the outer shell pressing portion 612, and the stability of the door liner 604 is ensured by supporting the door liner 604 by the supporting portion 610.

Preferably, the supporting portion 610 extends to the plugging surface 613 and/or the transition wall 614 along the axial direction of the inner cylinder for extrusion supporting.

The inner barrel door 6 of the present embodiment further includes a seal 605 mounted on the outer periphery of the blocking portion for maintaining the port tightness of the inner barrel 18 when the inner barrel door 6 is closed.

In order to realize the fixed installation of the sealing element 605, the outer shell body 601 in this embodiment has an annular groove, the inner peripheral wall of the inner shell body and the inner peripheral wall of the annular groove are arranged at intervals, the inner shell extrusion part 611 is an inner shell protrusion arranged on the inner peripheral wall of the inner shell body, and the connecting part 615 of the door liner 604 extends into the annular groove of the outer shell body and is clamped and fixed between the inner shell protrusion and the bottom wall of the annular groove.

The door body lining 604 and the sealing element 605 of the embodiment are fixedly clamped by the door body outer shell 601 and the door body inner shell 603, the door body outer shell 601 and the door body inner shell 603 are assembled once, the problem of the fixed installation of the door body lining 604 and the sealing element 605 is solved, the installation is simple and convenient, and the efficiency is high.

Preferably, the outer shell extrusion portion 612 is an outer shell protrusion on the bottom wall of the annular groove corresponding to the position of the inner shell protrusion, and the connecting portion 615 of the door liner 604 extends into the annular groove of the outer shell body and is clamped and fixed between the inner shell protrusion and the outer shell protrusion.

The support portion 610 in this embodiment is a support wall formed by the inner peripheral wall of the annular groove extending in the inner cylinder axial direction to the transition wall.

An installation space for clamping and fixing one end of the sealing element is arranged between the inner peripheral wall of the inner shell body and the transition wall 614 of the door body lining 604 in the embodiment, the periphery of the blocking surface 613 of the door body lining 604 extends outwards in the radial direction to form a blocking ring 609, the other end of the sealing element 605 is blocked on the blocking ring 609, and at least one layer of sealing rib 608 is arranged between the two ends of the sealing element 605.

An annular mounting groove is formed in the inner shell body, a mounting hole 602 is formed in the annular mounting groove, and the connecting piece passes through the mounting hole 602 and is fixedly connected with the outer shell body; the sealing element 605 comprises a decoration portion 607, the decoration portion 607 extends to the upper side of the installation groove and covers the notch of the installation groove, and the door body shell is provided with a corresponding assembly hole 606 in the installation hole 602.

To further increase the stability of the overall assembly of the inner barrel door 6, the present embodiment provides barb structures 616 on the door inner shell 603 and/or the door outer shell 601 and/or the door inner liner 604, with the barb structures 616 being shown as being provided on the door inner shell 603.

Example two

As shown in fig. 9 to 15, a washing machine of the present embodiment includes:

an inner tub 18 having a washing chamber for separately holding washing water;

an inner cylinder door 6 which is mounted on the opening of the inner cylinder 18 in an openable and closable manner;

and the inner barrel door 6 is rotatably arranged on the barrel opening of the inner barrel 18 through the rotating shaft structure.

The inner cylinder door 6 of the embodiment is rotatably arranged on the cylinder opening of the inner cylinder 18 through a rotating shaft structure to realize the closing and opening of the inner cylinder.

Specifically, the rotating shaft structure in this embodiment includes a rotating shaft seat 24, a rotating shaft 23 and a connecting arm 49, the rotating shaft seat 24 is fixedly mounted on a nozzle wall of the inner cylinder 18, the rotating shaft 23 is mounted on the rotating shaft seat 24, the connecting arm 49 is rotatably mounted on the rotating shaft 23, and the connecting arm 49 is fixedly connected with the inner cylinder door 6.

Further, the shaft seat 24 includes a first shaft seat 42 and a second shaft seat 43 fixed on the wall of the nozzle of the inner cylinder 18, and the shaft 24 is fixedly installed between the first shaft seat 42 and the second shaft seat 43.

Preferably, the rotating shaft 24 is a cylindrical rotating shaft, the first rotating shaft seat 42 and the second rotating shaft seat 43 are respectively provided with a special-shaped hole 45, and two ends of the cylindrical rotating shaft are respectively and fixedly installed in the special-shaped holes 45 of the first rotating shaft seat 42 and the second rotating shaft seat 43.

The rotating shaft 24 of the present embodiment includes a cylindrical shaft body 47 and a rotating shaft shaped portion 46 located at both ends of the cylindrical shaft body 47 and respectively fitted with the shaped hole 45.

Further, the rotating shaft structure in this embodiment further includes a rotating shaft seat liner 41 and a rotating shaft seat connecting piece, where the rotating shaft seat liner 41 and the rotating shaft seat 24 are respectively located at two sides of the nozzle wall of the inner cylinder 18; the rotary shaft seat lining plate 41 is provided with a rotary shaft seat lining plate fixing hole 40, the wall of the cylinder mouth of the inner cylinder 18 is provided with a rotary shaft fixing hole 38, and the rotary shaft seat 24 is provided with a rotary shaft seat fixing hole 39; the rotating shaft seat connecting piece passes through the rotating shaft seat lining plate fixing hole 40, the rotating shaft fixing hole 38 and the rotating shaft seat fixing hole 39 to fixedly connect the three. The function of the bearing lining 41 of this embodiment is to strengthen the strength of the inner cylinder bearing seat and avoid deformation.

Preferably, a seal is provided between the spindle base connector and the spindle base bushing mounting hole 40, and/or the spindle base connector and the spindle mounting hole 38, to prevent wash water within the inner tub 18 from seeping out of the connection location, keeping the inner tub 18 closed.

The connecting arm 49 of the present embodiment includes a shaft hole portion 48 and a connecting portion 50, the shaft hole portion 48 has a shaft hole, the rotating shaft 47 passes through the shaft hole 48 and can rotate freely relative to the shaft hole 48, and the connecting portion 50 is fixedly connected with the inner barrel door 6.

Preferably, the inner cylinder door 6 is provided with an inner cylinder door mounting avoiding area 608 corresponding to the connecting arm 49.

Further preferably, the inner cylinder door installation avoiding area 608 is disposed on the door inner shell 603.

It is known from the structural characteristics of drum washing machines having non-porous inner drums that maintaining the tightness of the inner drum door is a key to forming an inner drum chamber that can independently hold wash water during washing and rinsing, and that serious safety accidents may be caused if the inner drum door is unlocked or locked in place during dehydration of the inner drum rotating at high speed. Therefore, the washing machine of this embodiment further includes an inner cylinder door lock, the inner cylinder door lock includes a lock base assembly 22 and a lock tongue assembly 21, the lock base assembly 22 is fixed on the wall of the opening of the inner cylinder 18, the lock tongue assembly 21 is fixed on the inner cylinder door 6, and the lock tongue assembly 21 and the lock base assembly 22 are locked to lock the inner cylinder door.

Further, the lock seat assembly 22 includes a seat body 33, a lock hook 32, a lock seat lining plate 36 and a lock seat connecting piece, the lock hook 32 is arranged on the seat body 33, and the lock seat lining plate 36 and the seat body 33 are respectively positioned at two sides of the nozzle wall of the inner cylinder 18; the lock seat lining plate 36 is provided with a lock seat lining plate fixing hole 35, the wall of the cylinder mouth of the inner cylinder 18 is provided with a lock seat fixing hole, and the seat body 33 is provided with a lock seat fixing hole 34; the lock seat connecting piece passes through the lock seat lining plate fixing hole 35, the lock seat fixing hole and the lock seat fixing hole 34 to fixedly connect the three.

Preferably, a seal is provided between the lock base connector and the lock base bushing plate fixing hole 35 and/or the lock base connector and the lock base fixing hole.

Further, the latch bolt assembly 21 of this embodiment includes a latch bolt 30, a latch bolt rotating shaft 29 and a handle 25, the latch bolt rotating shaft 29 is fixedly mounted on the inner barrel door 18, the latch bolt 30 and the handle 25 are rotatably mounted on the latch bolt rotating shaft 29 respectively, and the handle 25 cooperates with the latch bolt 30 to drive the latch bolt to rotate so as to lock/unlock the inner barrel door.

Further, the latch bolt assembly 21 of this embodiment further includes a torsion spring 28, the torsion spring 28 is sleeved on the latch bolt rotating shaft 29, one end of the torsion spring 28 is fixedly connected with the inner barrel door 6, and the other end is fixedly connected with the latch bolt 30.

Preferably, the inner cylinder door 6 is provided with a torsion spring fixing hole or a torsion spring fixing groove for assembling the torsion spring 28, and the lock tongue 30 is provided with a torsion spring fixing hole or a torsion spring fixing groove for assembling the torsion spring 28.

The torsion spring 28 of the present embodiment includes a torsion spring inner barrel door fixing portion 27 connected to the inner barrel door 6 and a torsion spring tongue fixing portion 31 connected to the tongue 30.

As an implementation manner of this embodiment, the inner cylinder door 6 is provided with a mounting area 607 for mounting the latch bolt assembly.

Preferably, the inner cylinder door 6 includes a door inner shell 603, a door outer shell 601, and a door inner liner 604, the door inner liner 604 is clamped and fixed between the door inner shell 603 and the door outer shell 601, and the installation area 607 is disposed on the door outer shell 601.

Preferably, the mounting area 607 is a mounting groove provided on the door body housing 601.

Example III

As shown in fig. 16 to 18, a washing machine of the present embodiment includes:

an inner tub 18 having a washing chamber for separately holding washing water;

the outer cylinder 19 is sleeved outside the inner cylinder 18;

electromagnetic heating means is provided on the side wall of the outer cylinder 19, and heats the side wall of the inner cylinder 18 correspondingly.

The present embodiment provides a washing machine having an electromagnetic heating device by which the side wall of the inner tub 18 is heated, and the side wall of the inner tub 18 is heated by the electromagnetic heating device to thereby transfer heat to the washing water in the inner tub 18, thereby achieving heating of the washing water.

Electromagnetic heating is also called electromagnetic induction heating, namely electromagnetic heating (foreign language: electromagnetic heating abbreviated: EH) technology, and the principle of electromagnetic heating is that an alternating magnetic field is generated through components of an electronic circuit board, when an iron-containing container is placed on the container, alternating magnetic force lines are cut on the surface of the container, alternating current (namely vortex) is generated at a metal part at the bottom of the container, the vortex enables carriers at the bottom of the container to randomly move at a high speed, and the carriers collide and rub with atoms to generate heat energy. Thereby having an effect of heating the article. The iron container generates heat, so the heat conversion rate is particularly high, and the highest heat conversion rate can reach 95 percent, which is a direct heating mode. Therefore, the pulsator washing machine of the embodiment heats washing water by using the electromagnetic heating device, and has higher heating efficiency.

In addition, because electromagnetic heating is a non-contact heating mode, the installation requirement of the electromagnetic heating device is lower, unlike the traditional electric heating wire heating mode, the sealing performance is required to be considered, and therefore, the installation of the washing machine adopting the electromagnetic heating device is simpler. In addition, in order to install the electric heating wire, the installation position and the installation structure of the electric heating wire need to be specifically designed in the outer barrel, and the electromagnetic heating device of the embodiment can be directly installed on the inner wall or the outer wall of the outer barrel or even installed in the box body, so that the structure of the outer barrel is simplified, the volume of the inner barrel can be enlarged to a certain extent, and the capacity expansion is realized.

Furthermore, the resistance wire heating mode that current washing machine adopted, resistance wire submergence is direct to be heated in water, because the quality of water environment is comparatively complicated, along with the growth of time, deposit incrustation scale on the resistance wire, and because the reason of mounted position is difficult to clean to cause heating efficiency to reduce gradually, damage even. The electromagnetic heating device is adopted to realize non-contact heating, so that the problems can be avoided, the service life is greatly prolonged, and long-term high-efficiency heating can be kept.

In summary, the washing machine of the embodiment adopts the electromagnetic heating device to realize the heating function, thereby improving the heating efficiency, simplifying the installation of the heating device, simplifying the structure of the outer cylinder and prolonging the service life of the heating device.

The inner cylinder of the embodiment is made of iron material, and can cut alternating magnetic force lines generated by the electromagnetic heating device to generate alternating current (namely vortex 55), and the vortex 55 enables carriers on the side wall of the inner cylinder to move at high speed randomly, and the carriers collide and rub with each other to generate heat energy.

Further, the electromagnetic heating device according to the embodiment is disposed on the inner side wall of the outer cylinder.

Preferably, the electromagnetic heating means is provided at the lowest position of the inner side wall of the outer cylinder 19. The advantage is that the water is concentrated at the bottom of the inner cylinder 18, no matter how the water rotates, the washing water in the inner cylinder 18 is collected at the bottom, so that the heating inner cylinder 18 can transfer heat and water immediately, and the safety of heating the inner cylinder 18 and the high efficiency of heating are realized.

In addition, the electromagnetic heating device is arranged at the bottom, certain residual water exists in each drainage, and the electromagnetic coil of the electromagnetic heating device is used for heat dissipation.

As an implementation manner of this embodiment, the electromagnetic heating device in this embodiment includes an electromagnetic coil 59 and a mounting frame 58, where the electromagnetic coil 59 is fixed on the mounting frame 58, and the mounting frame 58 is fixed on an inner side wall of the outer cylinder 19.

Preferably, the mounting bracket 58 includes a mounting housing made of a non-metallic material, and the solenoid coil 59 is enclosed in the mounting housing.

Further, the mounting frame 58 includes a fixing portion, and an assembling portion matched with the fixing portion is disposed on an inner side wall of the outer cylinder 19, and the fixing portion is fixedly connected with the assembling portion through the connecting piece 56.

Specifically, the inner side wall of the outer cylinder 19 is provided with a mounting groove, the mounting rack 58 is mounted in the mounting groove, and the mounting rack 58 is provided with a transition curved surface in transition connection with the inner side wall of the outer cylinder 19. In this way, dirt accumulation at the mounting groove is avoided.

As another implementation mode of the embodiment, the electromagnetic heating device comprises an electromagnetic coil, a mounting groove is formed in the inner side wall of the outer cylinder, the electromagnetic coil is arranged in the mounting groove, and a sealing plate made of a nonmetallic material is mounted on a notch of the mounting groove in a sealing mode.

The coil distance is the distance H between the surface of the wound electromagnetic coil and the surface of the inner cylinder, which distance must not be too far or too close to achieve high heating efficiency. Specifically, the distance between the upper surface of the electromagnetic coil and the outer side wall surface of the inner cylinder is H, and the H satisfies the following conditions: h is more than or equal to 0.4cm and less than or equal to 10cm;

preferably, said H satisfies: 1 cm-3 cm;

further preferably, said H satisfies: 2.+ -. 0.5cm.

Further, the electromagnetic heating device according to the embodiment includes a heat dissipation member for dissipating heat from the electromagnetic coil, so as to achieve better heat dissipation from the wound coil.

Preferably, the heat sink is provided on the mounting frame or the sealing plate.

The embodiment also provides a control method of the washing machine, which controls the electromagnetic heating device to start in the washing and/or rinsing process of the washing machine, and simultaneously controls the inner cylinder to rotate to heat the washing water.

Further, the washing machine according to the embodiment includes a temperature detecting device for detecting a temperature of the washing water, and when the temperature detecting device detects that the temperature of the washing water reaches a set temperature, the electromagnetic heating device is controlled to stop working;

or the washing machine comprises a device for detecting the water inflow Q and the water inflow initial temperature T0, the washing machine receives the target heating temperature T set by a user, the heating time T of the washing machine is calculated, and when the working time of the electromagnetic heating device reaches the heating time T, the electromagnetic heating device is controlled to stop working.

Example IV

As shown in fig. 19 to 21, a washing machine of the present embodiment includes:

an inner tub 18 having a washing chamber for separately holding washing water;

an inner cylinder door 6 which is mounted on the opening of the inner cylinder 18 in an openable and closable manner;

a shell 1, a throwing port is arranged corresponding to the cylinder port of the inner cylinder 18;

the machine door 5 is arranged on the throwing port of the machine shell 1 in an openable and closable manner;

and a door opening mechanism 62 for opening and closing the inner cylinder door 6 and the machine door 5 in a linked manner by triggering the action of the door opening mechanism 62.

The linkage opening and closing of the inner barrel door 6 and the machine door 5 are realized through the door opening mechanism 62, so that the trouble that a user independently opens and closes the inner barrel door 6 and the machine door 5 respectively is avoided, the operation of the user is facilitated, and the use experience of the user is improved.

Specifically, the door opening mechanism 62 includes a trigger member, and the trigger member has at least two motion/position states, and is correspondingly controlled to sequentially open and close the door and the inner barrel door in a linkage manner.

As an implementation manner of the embodiment, the trigger piece includes a deformation part, and the deformation part is pressed to generate deformation displacement to control sequential linkage unlocking of the door and the inner barrel door; the deformation displacement corresponding to the unlocking of the machine door is smaller than that corresponding to the unlocking of the inner barrel door.

As an implementation manner of the embodiment, the trigger piece includes a moving part, and controls the sequential linkage unlocking of the machine door and the inner barrel door by controlling the moving part to generate displacement; the displacement corresponding to the unlocking of the machine door is smaller than the displacement corresponding to the unlocking of the inner barrel door.

Further, the door 5 is provided with a through channel, the trigger piece is arranged in the through channel, and the trigger piece is provided with a deformation part or a displacement part;

the machine door is provided with a machine door trigger piece for triggering the unlocking of the machine door, and the inner barrel door is provided with an inner barrel door trigger piece for triggering the unlocking of the inner barrel door;

the deformation part or the displacement part of the pressing trigger piece is used for switching the position state in the through channel, so that the action of the door trigger piece and the inner barrel door trigger piece is triggered in sequence.

An inner cylinder door lock is arranged on the inner cylinder door 6 in the embodiment, and the inner cylinder door trigger piece 65 triggers the unlocking of the inner cylinder door lock; the machine door 5 is provided with a machine door lock 63, and the machine door trigger piece triggers the unlocking of the machine door lock.

Specifically, the inner cylinder door lock comprises an inner cylinder door lock seat and an inner cylinder door lock tongue, the inner cylinder door trigger piece is an inner cylinder door handle linked with the inner cylinder door lock tongue, and the inner cylinder door handle is triggered by the trigger piece to act so as to drive the inner cylinder door lock tongue to be linked for unlocking.

Specifically, the machine door lock comprises a machine door lock seat and a machine door lock tongue, wherein the machine door trigger piece is linked with the machine door lock tongue, and the trigger piece triggers the machine door trigger piece to act to drive the machine door lock tongue to be linked for unlocking;

or the machine door lock is an electromagnetic lock, the machine door trigger piece is a trigger switch, and the trigger piece triggers the trigger switch to act to generate a control signal for controlling the unlocking/locking of the electromagnetic lock.

Further, the washing machine of the embodiment further comprises an inner barrel locking device for locking the inner barrel in a determined position, and the inner barrel door trigger piece is arranged corresponding to the position of the through passage of the inner barrel in a locked state by the inner barrel locking device.

As an implementation manner of the embodiment, the door opening mechanism comprises a linkage assembly, the linkage assembly is respectively connected with the machine door and the inner barrel door in a linkage manner, and the trigger piece triggers the linkage assembly to drive the machine door and the inner barrel door to be sequentially unlocked/locked in a linkage manner.

Example five

As shown in fig. 22 to 24, a washing machine of the present embodiment includes:

an inner tub 18 having a washing chamber for separately holding washing water;

an inner cylinder door 6 which is mounted on the opening of the inner cylinder 18 in an openable and closable manner;

an inner cylinder door lock for locking the inner cylinder door 6 to keep a closed state;

and a door lock detection device 66 for detecting whether the inner cylinder door lock is locked.

The drum washing machine with the front open structure of the non-porous inner drum is disclosed in the present embodiment, the inner drum 18 is of a non-porous structure, and as can be known from the structural characteristics of the drum washing machine with the non-porous inner drum, the sealing performance of the inner drum door is maintained in the washing and rinsing processes to form the inner chamber of the inner drum capable of independently holding washing water, and in the dehydration process of the inner drum rotating at a high speed, if the inner drum door is unlocked or locked in place, serious safety accidents can be caused. The washing machine of this embodiment detects the inner cylinder door lock by adopting the door lock detection device, and because whether the inner cylinder door lock is locked or not directly relates to whether the inner cylinder door is closed in place, the door lock detection device 66 can more directly detect the state of the inner cylinder door, thereby fundamentally avoiding the situation that the inner cylinder door is not closed in place.

Further, the inner cylinder door lock according to the present embodiment includes a lock tongue 30 mounted on the inner cylinder door 6 and a lock base 24 mounted on the nozzle of the inner cylinder 18; the washing machine comprises an outer cylinder 19 coaxially arranged outside the inner cylinder 18, and the door lock detection device 66 is arranged on the outer cylinder 19 and is used for detecting whether the lock tongue 30 is locked in the lock seat 24.

According to the specific structure of the inner barrel door lock, the door lock detection device directly detects whether the lock tongue 30 of the inner barrel door lock is locked in the lock seat 24, so that whether the inner barrel door 6 is locked or not can be accurately judged, the accuracy of locking the inner barrel door in place is greatly improved, and potential safety hazards caused by the fact that the inner barrel door is locked in place are avoided.

Further, since the displacement difference between the locking and unlocking state of the inner cylinder door lock is small, in order to accurately detect the movement of the locking tongue, the requirement on the detection precision of the door lock detection device is high, but this necessarily increases the cost of the door lock detection device, and the washing machine of the embodiment further includes a door lock trigger device that is linked with the locking tongue 30 into the detection range of the door lock detection device 66 in the inner cylinder door lock locking process on the premise of reducing the cost of the door lock detection device as much as possible and ensuring the detection precision.

In this embodiment, by setting the door lock trigger device, the inner cylinder door lock is locked and linked with the lock tongue, the door lock trigger device can amplify the displacement of the lock tongue when the inner cylinder door lock is locked, so that the displacement is more easily detected by the door lock detection device 66, and the detection accuracy is ensured.

As an implementation manner of this embodiment, the door lock triggering device according to this embodiment includes a movable member 68 reciprocally mounted in the lock base 24 and an elastic member 70 disposed between the movable member 68 and the lock base 24; the movable part 68 is provided with a sensing part 67 which can be detected by the door lock detection device 66; the movable member 68 is linked with the lock tongue 30 in the inner cylinder lock locking process, and a detection signal is generated after the door lock detection device 66 detects the sensing member 67 in the detection range.

The movable member 68 of the door lock triggering device of the embodiment can amplify the smaller displacement of the lock tongue along with the lock tongue linkage when the inner cylinder door lock is locked, or prolong the displacement occurrence position of the lock tongue to be within the detection range of the door lock detection device 66, thereby realizing accurate detection when the inner cylinder door lock is locked.

In the locking process of the inner cylinder door lock, the elastic member 70 of the door lock triggering device of the embodiment compresses the elastic member 70 in a linkage manner by the movable member and the lock tongue, the elastic member 70 is elastically deformed, and when the inner cylinder door lock is unlocked, the movable member is not stopped by the lock tongue 30 any more, and the elastic member 70 is restored to deform to push the movable member 68 to reset so as to detect the next locking process.

Further, the lock base 24 of the present embodiment includes a base body and a locking member disposed in the base body, one end of the elastic member 70 is fixed in the base body, the other end is connected to the movable member 68 and extends to the locking member, and the lock tongue 30 is locked in the locking member and is stopped against the movable member 68 to push the lock tongue to move into the detection range of the door lock detection device 66.

The locking member of the present embodiment is provided with an opening, and at least a portion of the movable member 68 extends into the locking member from the opening under the action of the elastic member 70.

The door lock triggering device according to the present embodiment includes a stopper 69 provided on the movable member for preventing the movable member 68 from being pulled out of the lock housing.

Preferably, the limiting member 69 is a limiting protrusion disposed on the movable member 68, one end of the movable member 68 extends into the locking member from the opening, and the other end is limited outside the opening by the limiting protrusion.

As an implementation manner of this embodiment, the sensing element 67 is a permanent magnet, and the door lock detection device 66 includes a magnetic induction element capable of sensing the permanent magnet; preferably, the permanent magnet is a magnet, and the magnetic induction element is a reed switch.

The induction distance range of the reed switch in this embodiment is L.

As shown in fig. 23, the inner cylinder door 6 of this embodiment is locked in place, the lock tongue 30 is implemented to press the movable member 68 and the magnet towards the outer cylinder wall, the distance between the magnet and the reed switch is implemented to be H, H is less than or equal to L or H is less than L, the reed switch is attracted, and the door body is determined to be locked in place by a passage.

As shown in fig. 24, the inner cylinder door 6 of the present embodiment cannot be locked in place or opened, the lock tongue 30 cannot be locked in place, the elastic member 70 is implemented to press the movable member 68 away from the outer cylinder wall, the distance between the magnet and the reed switch is implemented to be h+h, where h+h > L, the reed switch is not closed, and the door body is determined to be unlocked in place.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims (13)

1. A washing machine, comprising:

an inner cylinder having a washing chamber for independently holding washing water;

an outer cylinder sleeved outside the inner cylinder;

the electromagnetic heating device is arranged on the side wall of the outer cylinder and corresponds to the side wall of the inner cylinder;

the electromagnetic heating device is arranged at the lowest position of the inner side wall of the outer cylinder;

an inner cylinder door which is arranged at a cylinder opening of the inner cylinder in an openable and closable manner;

the inner barrel door comprises a door body inner shell, a door body outer shell and a door body lining, wherein the door body lining is clamped and fixed between the door body inner shell and the door body outer shell;

the door body lining comprises a blocking part matched with the shape of the cylinder opening of the inner cylinder and a connecting part positioned at the periphery of the blocking part, and the connecting part is clamped and fixed between the door body inner shell and the door body outer shell;

the plugging part comprises a plugging surface and a transition wall, wherein the periphery of the plugging surface extends along the axial direction of the inner cylinder, and the connecting part is an annular connecting wall formed by flanging the periphery of the transition wall;

the door inner shell comprises an annular inner shell body, an inner shell connecting part and an inner shell extruding part, wherein the inner shell connecting part and the inner shell extruding part are arranged on the inner shell body; the door body shell comprises an annular shell body, a shell connecting part and a shell extruding part, wherein the shell connecting part and the shell extruding part are arranged on the shell body; the inner shell connecting part is fixedly connected with the outer shell connecting part through a connecting piece, and the inner shell extruding part and the outer shell extruding part clamp and fix the connecting part of the door lining;

the door body shell comprises a shell supporting part arranged on the shell body, and the supporting part extends to the plugging part along the axial direction of the inner cylinder for extrusion supporting; the door body is provided with an annular groove, the inner side peripheral wall of the inner shell body and the inner side peripheral wall of the annular groove are arranged at intervals, the inner shell extrusion part is an inner shell bulge arranged on the inner side peripheral wall of the inner shell body, and the connecting part of the door body lining stretches into the annular groove of the outer shell body and is clamped and fixed between the inner shell bulge and the bottom wall of the annular groove;

the outer shell extrusion part is an outer shell bulge arranged on the bottom wall of the annular groove at a position corresponding to the inner shell bulge, and the connecting part of the door lining stretches into the annular groove of the outer shell body and is clamped and fixed between the inner shell bulge and the outer shell bulge;

the supporting part is a supporting wall formed by extending the inner side peripheral wall of the annular groove to the transition wall along the axial direction of the inner cylinder.

2. The washing machine as claimed in claim 1, wherein the electromagnetic heating means comprises an electromagnetic coil and a mounting bracket, the electromagnetic coil is fixed to the mounting bracket, and the mounting bracket is fixed to an inner side wall of the outer tub.

3. The washing machine as claimed in claim 2, wherein the mounting frame includes a mounting housing made of a non-metallic material, and the electromagnetic coil is enclosed in the mounting housing.

4. The washing machine as claimed in claim 2, wherein the mounting frame includes a fixing portion, the inner sidewall of the outer tub has an assembling portion engaged with the fixing portion, and the fixing portion is fixedly connected with the assembling portion through a connecting member.

5. The washing machine as claimed in claim 2, wherein the outer tub has a mounting groove formed in an inner sidewall thereof, the mounting frame is mounted in the mounting groove, and the mounting frame has a transition curved surface in transition connection with the inner sidewall of the outer tub.

6. The washing machine as claimed in claim 1, wherein the electromagnetic heating device comprises an electromagnetic coil, a mounting groove is formed in the inner side wall of the outer cylinder, the electromagnetic coil is arranged in the mounting groove, and a sealing plate made of a nonmetallic material is mounted on a notch of the mounting groove in a sealing manner.

7. The washing machine as claimed in claim 2, wherein a distance between an upper surface of the electromagnetic coil and an outer sidewall surface of the inner tub is H, the H satisfying: h is more than or equal to 0.4cm and less than or equal to 10cm.

8. The washing machine as claimed in claim 7, wherein H satisfies: 1cm to 3cm.

9. The washing machine as claimed in claim 8, wherein H satisfies: 2.+ -. 0.5cm.

10. The washing machine as claimed in claim 2, wherein the electromagnetic heating means includes a heat radiating member for radiating heat from the electromagnetic coil.

11. The washing machine as claimed in claim 10, wherein the heat sink is provided on the mounting frame or the sealing plate.

12. A control method of a washing machine as claimed in any one of claims 1 to 10, wherein the electromagnetic heating means is controlled to be activated during washing and/or rinsing of the washing machine, and the inner tub is controlled to be rotated to heat the washing water.

13. The control method of a washing machine as claimed in claim 12, wherein the washing machine includes a temperature detecting means for detecting a temperature of the washing water, and the electromagnetic heating means is controlled to stop operating when the temperature detecting means detects that the temperature of the washing water reaches a set temperature;

or the washing machine comprises a device for detecting the water inflow Q and the water inflow initial temperature T0, the washing machine receives the target heating temperature T set by a user, the heating time T of the washing machine is calculated, and when the working time of the electromagnetic heating device reaches the heating time T, the electromagnetic heating device is controlled to stop working.