CN114657738A

CN114657738A - Washing/drying machine

Info

Publication number: CN114657738A
Application number: CN202210228669.0A
Authority: CN
Inventors: 柳宗超; 伊茂聪; 高尚
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-06-24

Abstract

The present invention provides a washing/drying machine, including a drum and a steam generator; the drum contains clothes; the steam generator comprises a plurality of evaporation tubes for water circulation, a superconducting heating layer arranged on each evaporation tube and a communicating tube communicated with the evaporation tubes; the plurality of evaporation tubes extend along the longitudinal direction; the plurality of evaporation tubes are arranged at intervals along the transverse direction; the periphery of the superconducting heating layer is covered on the periphery of the evaporation tube so as to heat water in the evaporation tube to form steam; the communicating pipe is communicated with the outlet of the upstream evaporation pipe and the inlet of the downstream evaporation pipe; the inlet of the most upstream evaporating pipe is communicated with an external water source, and the outlet of the most downstream evaporating pipe is communicated with the roller. As the water passes through the plurality of evaporation tubes in sequence, the water in the evaporation tubes is heated and sufficiently vaporized to generate sufficient high-temperature steam. The high-temperature steam is conveyed into the drum through the outlet of the downstream evaporation pipe so as to steam wash the clothes in the drum, and effectively clean stains, stubborn bacteria, residual laundry detergent and the like on the clothes.

Description

Washing/drying machine

Technical Field

The invention relates to the technical field of household appliances, in particular to a washing machine/clothes dryer.

Background

With the development of national economy, more and more household appliances begin to enter people's lives. The washing machine becomes an essential household appliance for families, and can help people clean clothes, reduce time consumption of people in household and bring convenience to life of people.

Currently, washing machines have been widely used. With the development of science and technology, steam washing (washing with steam is a process of washing laundry with a large amount of steam to penetrate the fibers of the laundry deeply and effectively remove stains from the laundry) occurs in a washing mode of a washing machine/dryer. However, since the steam generating power of the steam engine in the washing machine/dryer is low and the total amount of the steam is low, the generated steam is not enough to effectively dry and wash the clothes in the washing machine, and the stains and the residual laundry detergent on the clothes cannot be thoroughly cleaned.

Disclosure of Invention

The invention aims to provide a washing machine/dryer, which can provide a large amount of steam to effectively dry and wash clothes in the washing machine/dryer and clean stains, stubborn bacteria, residual laundry detergent and the like on the clothes.

In order to solve the technical problems, the invention adopts the following technical scheme:

according to one aspect of the present invention, there is provided a washing/drying machine including a drum and a steam generator; the drum contains laundry; the steam generator comprises a plurality of evaporation tubes for water circulation, a superconducting heating layer arranged on each evaporation tube and a communicating tube communicated with the evaporation tubes; the plurality of evaporation tubes extend along the longitudinal direction; the plurality of evaporation tubes are arranged at intervals along the transverse direction; the periphery of the superconducting heating layer circumferentially covers the periphery of the evaporation pipe so as to heat water in the evaporation pipe to form steam; the communicating pipe is communicated with the outlet of the upstream evaporation pipe and the inlet of the downstream evaporation pipe; the inlet of the most upstream evaporation tube is communicated with an external water source, and the outlet of the most downstream evaporation tube is communicated with the roller.

In some embodiments, the superconducting heating layer is formed on the outer peripheral wall of the evaporation tube by plating of a superconducting material.

In some embodiments, a protection box is arranged outside the steam generator, and a plurality of evaporation tubes and the superconducting heating layer are accommodated in the protection box; the inlet of the most upstream evaporation tube and the outlet of the most downstream evaporation tube respectively penetrate out of the side wall of the protection box.

In some embodiments, a bayonet is formed in a side wall of the protection box, and an inlet of the evaporation tube at the most upstream and an outlet of the evaporation tube at the most downstream are respectively inserted through and limited on the bayonet.

In some embodiments, the communication pipe is disposed outside the protection box, the protection box is provided with a communication port on a side wall in an extending direction of the evaporation pipe, and an outlet of the upstream evaporation pipe and an inlet of the downstream evaporation pipe pass through the communication port and are communicated with the communication pipe.

In some embodiments, both ends of the superconducting heating layer are sleeved with annular electrodes.

In some embodiments, the electrode has a gap with an inner sidewall of the protective pocket.

In some embodiments, a controller is disposed on the protective cartridge, the controller being in communication with the electrode.

In some embodiments, the evaporation tube is made of glass so that the inner surface of the evaporation tube is smooth.

In some embodiments, the diameter of the evaporation tube is less than or equal to 20mm, and the thickness of the superconducting heating layer along the radial direction of the superconducting heating layer is less than or equal to 2 mm.

According to the technical scheme, the invention has at least the following advantages and positive effects:

in the present invention, after the laundry is placed in the drum of the washer/dryer, water enters the inlet of the steam generator, and the superconducting heating layer in the steam generator is energized to generate heat. Because the temperature that superconductive zone of heating circular telegram produced is far above the boiling point of water, the temperature conduction is to in the evaporating pipe, and because water passes through a plurality of evaporating pipes in proper order for the water in the evaporating pipe is heated and is fully vaporized in order to produce sufficient high temperature steam. The high-temperature steam is conveyed into the drum through the outlet of the downstream evaporation pipe so as to steam wash the clothes in the drum, and effectively clean stains, stubborn bacteria, residual laundry detergent and the like on the clothes.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a washing machine according to the present invention.

Fig. 2 is a schematic view of a connection structure of a steam generator and a controller of an embodiment of a washing machine according to the present invention.

Fig. 3 is a schematic structural view of a steam generator of an embodiment of a washing machine according to the present invention.

Fig. 4 is a schematic structural view illustrating the steam generator of the embodiment of the washing machine according to the present invention when the upper case is opened.

Fig. 5 is a schematic structural view of the structure shown in fig. 4 with the communication pipe and the upper case removed.

Fig. 6 is an exploded view of the steam generator according to the embodiment of the washing machine of the present invention.

Fig. 7 is a schematic view of a connection structure of a protection box and a communication pipe of an embodiment of a washing machine according to the present invention.

Fig. 8 is a schematic view of a connection structure of a lower case and a communication pipe of a washing machine according to the present invention.

The reference numerals are explained below: 100. a drum; 200. a water inlet device; 300. a steam generator; 310. an evaporation tube; 320. a superconducting heating layer; 330. a communicating pipe; 340. an electrode; 350. a protection box; 351. a bayonet; 352. a communication port; 353. an upper box body; 354. a lower box body; 400. and a controller.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

At present, a washing machine/dryer has become an essential household appliance in daily life of people, and the washing machine/dryer can help users to clean clothes, reduce housework time of the users and improve work efficiency of the users. With the development of science and technology, a steam washing mode (steam washing is that a large amount of steam is used for washing clothes, the steam penetrates through fibers of the clothes deeply, stains on the clothes are effectively taken out) appears in the washing machine, and bacteria, stains, residual laundry detergent and the like on the clothes can be effectively removed.

The washing machine comprises a box body, a roller, a motor, a main control panel and a power supply. The box body is hollow so as to accommodate and protect the roller, the motor, the main control board and the power supply. The drum is accommodated in the box body, and clothes are accommodated in the drum. The motor is in transmission connection with the roller to drive the roller to rotate. The main control board is connected with the motor and the power supply to control the operation of the motor. The power supply is used for supplying energy to the main control panel and the motor.

The box body is provided with a feeding opening which is communicated with the roller, and a user can feed clothes into the roller through the feeding opening to clean the clothes. The outer surface of the box body is also provided with a control key, and the control key is connected with the main control panel, so that a user can control the operation of the washing machine through the control key.

The cylinder sets up in the box, and the cylinder extends along the direction of perpendicular to input mouth, and the cylinder is connected with the motor transmission to make the cylinder can rotate, thereby drive the clothing in the cylinder, the clothing is at the rotation in-process sanitization.

The motor is located the box, and the motor is located the cylinder and deviates from one side of putting in the mouth, and the motor can provide power for the rotation of cylinder. The motor is electrically connected to a power source.

The main control board is arranged in the box body and is electrically connected with the motor, so that the main control board can control the operation of the motor, and the rotation state of the roller can be adjusted. The main control panel is also electrically connected with the control keys. The user can adjust the washing machine mode of the main control panel through the control key, so that the washing modes of the motor and the drum are controlled, the washing machine can be switched among the washing modes, the steam washing mode and the like, and clothes can be efficiently and stably washed.

The invention provides a washing machine, which can also be a dry cleaner, a drying and washing integrated machine and the like. The following is an example of a washing machine.

Referring to fig. 1, the present invention includes a washing machine including a cabinet (not shown), a drum 100, a water inlet device 200, and a steam generator 300. The box body is hollow, and contains the roller 100, the water inlet device 200 and the steam generator 300 therein, and the box body is provided with a feeding opening for communicating the roller 100. The drum 100 accommodates laundry therein and is capable of washing the laundry. One end of the water inlet device 200 is connected to an external water source, and the other end is connected to the drum 100. The steam generator 300 is disposed between the water inlet device 200 and the drum 100 to vaporize water into steam and transmit the steam into the drum 100. The steam washing function of the washing machine can provide sufficient steam for clothes, so that the steam washing of the clothes is realized, and stains, stubborn bacteria, residual laundry detergent and the like on the clothes are effectively cleaned.

The state of the washing machine in use is taken as reference, the opening direction of the input port is taken as the front of the following text, and the direction departing from the input port is taken as the rear of the following text. The up, down, left and right directions of the washing machine are taken as the up, down, left and right directions of the following.

A feeding opening is formed in the front side of the box body and communicated with the rotary drum 100, and a user places clothes in the rotary drum 100 through the feeding opening so as to be convenient for the washing machine to clean; the clothes can be taken out through the input opening.

In the present embodiment, the drum 100 extends in the front-rear direction, and the drum 100 can rotate about an axis extending in the front-rear direction to rotate the laundry in the drum 100, so that the steam can sufficiently wash the laundry while the laundry is rotated. The drum 100 is in communication with the water inlet device 200, and the steam generator 300 is disposed between the drum 100 and the water inlet device 200. The steam generator 300 is communicated with the outlet of the water inlet device 200 and the inlet of the drum 100, and water is changed into steam after being treated by the steam generator 300 to be input into the drum 100 through the inlet of the drum 100 for the washing machine to realize steam washing. In some embodiments, when the washing machine is started, the steam generator 300 is not operated, and the water inlet device 200 may supply water to the drum 100.

In this embodiment, one end of the water inlet device 200 is connected to an external water source, and the other end is connected to the steam generator 300. The water inlet device 200 may be a valve structure such as a solenoid valve, which can adjust the water outlet amount of the water inlet device 200, so as to control the steam generation amount of the steam generator 300.

Fig. 2 is a schematic view of a connection structure of a steam generator and a controller of an embodiment of a washing machine according to the present invention. Fig. 3 is a schematic structural view of a steam generator of an embodiment of a washing machine according to the present invention.

In this embodiment, an inlet of the steam generator 300 is connected to the water inlet means 200, and an outlet of the steam generator 300 is connected to the drum 100. The steam generator 300 heats the water transferred from the water inlet device 200, so that the water is vaporized into steam, and then transfers the steam into the drum 100 to steam-wash the laundry in the drum 100.

The steam generator 300 includes a plurality of evaporation tubes 310 for water circulation, a superconducting heating layer 320 disposed on each evaporation tube 310, a communicating tube 330 communicating with the evaporation tube 310, and a protection box 350 protecting the evaporation tube 310 and the superconducting heating layer 320. The upstream evaporation tube 310 and the downstream evaporation tube 310 are connected by a communication pipe 330. When the steam generator 300 operates, the superconducting heating layer 320 is electrified to heat up to convert electric energy into heat energy and heat the water in the evaporation tube 310, so that the water is vaporized into steam. The protection box 350 is hollow to accommodate the plurality of evaporation tubes 310 and the superconducting heating layer 320, so as to protect the evaporation tubes 310 and the superconducting heating layer 320. The water and the steam sequentially pass through the plurality of evaporation tubes 310 so that the water can be sufficiently vaporized into the steam, improving the steam conversion rate of the water to provide sufficient steam for washing the laundry in the drum 100.

The evaporation tube 310 is plural and extends in a longitudinal direction, and the plural evaporation tubes 310 are arranged at intervals in a transverse direction. The inlet of the most upstream evaporation tube 310 is communicated with the water inlet device 200, and the outlet of the most downstream evaporation tube 310 is communicated with the drum 100; the outlet of the upstream evaporation tube 310 is communicated with the inlet of the downstream evaporation tube 310 via a communication pipe 330, so that water enters the upstream evaporation tube 310 from the inlet of the upstream evaporation tube 310, then flows through the outlet of the upstream evaporation tube 310, the communication pipe 330 and the inlet of the downstream evaporation tube 310 in sequence, and finally flows into the drum 100 from the outlet of the downstream evaporation tube 310. The water is heated by the superconducting heating layer 320 during the circulation process of the water in the plurality of evaporation tubes 310, so that the water is sufficiently vaporized into steam during the circulation process, thereby improving the vaporization efficiency of the water and providing sufficient steam for the inside of the drum 100 to clean the laundry.

In some embodiments, there are three evaporation tubes 310, which extend in the longitudinal direction; two adjacent evaporation tubes 310 are communicated with each other through a communication tube 330, and the number of the communication tubes 330 is two. The inlet of the most upstream evaporation tube 310 is communicated with the water inlet means 200, and the outlet of the most downstream evaporation tube 310 is communicated with the drum 100. After the water exits the water inlet device 200, the water passes through the evaporation pipe 310, the communication pipe 330, and the evaporation pipe 310 in this order, and is then transferred into the drum 100. The water is heated and vaporized into steam during the process of passing through the evaporation tube 310.

In other embodiments, a plurality of evaporation tubes 310 extend along the longitudinal direction, and the plurality of evaporation tubes 310 are arranged at intervals along the longitudinal direction, and adjacent evaporation tubes 310 are communicated with each other through a communication pipe 330.

In this embodiment, the diameter of the evaporation tube 310 is less than or equal to 20mm, so that the maximum value of the cross-sectional area of water in the evaporation tube 310 is fixed, thereby facilitating the setting of the heating power of the superconducting heating layer 320. In some embodiments, the diameter of the evaporation tube 310 may be 8mm, 12mm, or 15 mm.

A plurality of evaporation tubes 310 are accommodated in the protective case 350. The most upstream evaporation tube 310 and the most downstream evaporation tube 310 are inserted and limited on the protection box 350, so that the plurality of evaporation tubes 310 are protected by the protection box 350.

In some embodiments, the evaporation tube 310 is made of glass, and when the water in the evaporation tube 310 is heated and vaporized into steam, the inner surface of the evaporation tube 310 made of glass is smooth, so that the adhesion capacity of impurities left after the water is vaporized on the evaporation tube 310 is reduced, the scaling speed of the water during vaporization is reduced, and the service life of the evaporation tube 310 is prolonged. In other embodiments, the evaporation tube 310 is made of metal.

Fig. 4 is a schematic structural view illustrating the steam generator of the embodiment of the washing machine according to the present invention when the upper case is opened. Fig. 5 is a schematic structural view of the structure shown in fig. 4 with the communication pipe and the upper case removed. Fig. 6 is an exploded view of the steam generator according to the embodiment of the washing machine of the present invention.

Referring to fig. 4, 5 and 6, in the present embodiment, the communication pipe 330 is used to communicate the upstream evaporation tube 310 and the downstream evaporation tube 310, so as to communicate the plurality of evaporation tubes 310, and realize multi-stage heating of water. The communication pipe 330 is located outside the protection case 350, and the plurality of evaporation tubes 310 are inserted into a sidewall of the protection case 350 such that an outlet of the upstream evaporation tube 310 and an inlet of the downstream evaporation tube 310 communicate with each other outside the protection case 350 through the communication pipe 330.

In some embodiments, the communication tube 330 is housed within the protective case 350. In this embodiment, the communication pipe 330 is located outside the protection cassette 350, and the communication pipe 330 and the attached protection cassette 350 are disposed such that the connection of the communication pipe 330 and the evaporation pipe 310 is located on the sidewall of the protection cassette 350.

In other embodiments, the communication pipe 330 is received in the sidewall of the protection box 350 to protect the evaporation tube 310 and the communication pipe 330, and at the same time, to reduce the volume of the protection box 350 and the space occupied by the steam generator 300 in the washing machine, thereby making the structure of the washing machine compact and reducing the production cost of the washing machine.

In some embodiments, the protection box 350 is provided with a protrusion (not shown) at the outlet of the upstream evaporation tube 310 and the inlet of the downstream evaporation tube 310, the protrusion is attached to the protection box 350 and fixedly connected to the protection box, a groove (not shown) extending in the transverse direction is formed on one side of the protrusion facing the protection box 350, the groove is communicated with the outlet of the upstream evaporation tube 310 and the inlet of the downstream evaporation tube 310, so that the protrusion and the outer sidewall of the protection box 350 form a communication tube 330, and water flows in the groove and is transferred to the inlet of the downstream evaporation tube 310 after entering the groove of the protrusion through the outlet of the upstream evaporation tube 310.

Referring to fig. 4, 5 and 6, in the present embodiment, the superconducting heating layer 320 circumferentially covers the outer circumference of the evaporation tube 310 to heat the water in the evaporation tube 310 to form steam. The superconducting heating layer 320 is attached to the evaporation tube 310, so that heat generated by the superconducting heating layer 320 can be directly transferred to the evaporation tube 310 and then transferred to water through the evaporation tube 310, and the heat transfer efficiency is improved.

The number of the superconducting heating layers 320 corresponds to the number of the evaporation tubes 310, so that the plurality of superconducting heating layers 320 are respectively covered on the peripheries of the plurality of evaporation tubes 310, thereby realizing multi-stage heating of water, improving vaporization efficiency of water, and providing sufficient steam for the drum 100.

The thickness of the superconducting heating layer 320 along the radial direction thereof is less than or equal to 2mm, so that when the thickness of the evaporation tube 310 of the superconducting heating layer 320 is less than or equal to 20mm, the superconducting heating layer can fully heat and vaporize the water in the evaporation tube 310, and the steam generator 300 can rapidly and stably generate a large amount of steam. In some embodiments, the thickness of superconducting heating layer 320 in its radial direction may be 0.5mm, 1mm, 1.5 mm.

The superconducting heating layer 320 is formed of a superconducting material, which is plated on the outer circumferential wall of the evaporation tube 310 to form the superconducting heating layer 320. The superconducting material has high heating efficiency and small volume, and after being electrified, electric energy is converted into a large amount of heat energy, so that the volume of the steam generator 300 is reduced. This superconductive zone of heating 320 can rapid heating up under normal atmospheric temperature and pressure, and the temperature of this superconductive zone of heating 320 is greater than the boiling point of water far away for this superconductive zone of heating 320 can be fast and stable with the abundant vaporization of water for steam, thereby improve steam generator 300's steam production efficiency, for cylinder 100 provides a large amount of steam, improve the washing efficiency of clothing.

In some embodiments, the superconducting material of superconducting heating layer 320 is: titanium-nickel alloys, aluminum-chromium alloys, nickel-chromium alloys, and the like.

In the present embodiment, the electrodes 340 are disposed at both ends of the superconducting heating layer 320 to supply power to the superconducting heating layer 320. The electrode 340 is a ring electrode, and is sleeved on the superconducting heating layer 320. The inner peripheral wall of the annular electrode is abutted to the outer peripheral wall of the superconducting heating layer 320, so that the current of the annular electrode is uniformly conducted into the superconducting heating layer 320, the superconducting heating layer 320 uniformly generates heat, the heat is transferred to the evaporation tube 310, the local temperature of the superconducting heating layer 320 is prevented from being too high, and the temperature of the superconducting heating layer 320 is balanced.

In some embodiments, the plurality of electrodes 340 are disposed in parallel, and the plurality of electrodes 340 are all connected to the same controller 400, so that the temperatures of the plurality of superconducting heating layers 320 are uniform, and the water in the plurality of evaporation tubes 310 is uniformly heated. In other embodiments, the electrodes 340 on the plurality of evaporation tubes 310 receive different voltages/currents, and the controller 400 may control the voltage/current of the electrodes 340 so that the plurality of evaporation tubes 310 are at different temperatures. While the water is fully vaporized, the temperature of the superconducting heating layer 320 on the downstream evaporation tube 310 is reduced, so that the energy consumption is reduced, and the energy is saved.

Fig. 7 is a schematic view of a connection structure of a protection box and a communication pipe of an embodiment of a washing machine according to the present invention. Fig. 8 is a schematic view of a connection structure of a lower case and a communication pipe of a washing machine according to the present invention.

Referring to fig. 4 to 8, in the present embodiment, the protection box 350 is hollow to accommodate and protect the evaporation tube 310, the superconducting heater layer 320 and the electrode 340. Bayonets 351 are formed in two longitudinal side walls of the protection box 350, and the upstream-most evaporation tube 310 and the downstream-most evaporation tube 310 are respectively inserted into the bayonets 351, so that the inner peripheral walls of the bayonets 351 are respectively abutted against the outer peripheral walls of the upstream-most evaporation tube 310 and the downstream-most evaporation tube 310, and the protection box 350 limits the evaporation tubes 310 in the protection box 350.

The communication pipe 330 is located outside the protection box 350, a plurality of communication ports 352 are further formed in a side wall of the protection box 350 along the extending direction of the evaporation tubes 310, and an outlet of the upstream evaporation tube 310 and an inlet of the downstream evaporation tube 310 pass through the plurality of communication ports 352 and are communicated with the communication pipe 330.

In some embodiments, there are three evaporation tubes 310, two communication tubes 330 are disposed outside the protection case 350, there are 4 communication ports 352, the inlet of the most upstream evaporation tube 310 is engaged with and retained by the bayonet 351, the outlet of the most upstream evaporation tube 310 is engaged with and retained by the communication port 352, and the outlet of the most upstream evaporation tube 310 is communicated with the communication tube 330. The inlet and outlet of the middle evaporation tube 310 are engaged with and restricted by the communication port 352, and are respectively communicated with the outlet of the most upstream evaporation tube 310 and the inlet of the most downstream evaporation tube 310 through the communication pipe 330. The outlet of the downstream-most evaporation tube 310 is engaged with and restricted by the bayonet 351, and the outlet of the downstream-most evaporation tube 310 communicates with the drum 100.

Referring to fig. 6, 7 and 8, in the present embodiment, the protection box 350 includes an upper box 353 and a lower box 354, and the upper box 353 and the lower box 354 are combined and fixed to form the protection box 350. The upper case 353 and the lower case 354 are fixedly connected. The upper case 353 and the lower case 354 are fixed by snap connection, bolt connection, or screw connection.

A gap is formed between the inner sidewall of the protective case 350 and the electrode 340 to prevent current from being transmitted to the protective case 350 through the electrode 340, thereby protecting a user. So that the heat generated from the superconducting heating layer 320 is not directly transferred to the protective case 350. The protection case 350 has high temperature resistance and non-conductivity at high temperature or normal temperature. The protection box 350 accommodates and protects the evaporation tube 310, the superconducting heating layer 320, and the electrode 330, and also blocks a portion of the temperature of the superconducting heating layer 320, reducing the temperature transferred to the outside of the protection box 350, thereby protecting the internal components of the washing machine.

In some embodiments, the protection box 350 is provided with a protrusion (not shown) at the outlet of the upstream evaporation tube 310 and the inlet of the downstream evaporation tube 310, the protrusion is attached to the protection box 350 and fixedly connected to the protection box, a side of the protrusion facing the protection box 350 is provided with a groove (not shown) extending along the transverse direction, the groove is communicated with the outlet of the upstream evaporation tube 310 and the inlet of the downstream evaporation tube 310, so that the protrusion and the outer sidewall of the protection box 350 form a communication tube 330, and water flows in the groove and is transferred to the inlet of the downstream evaporation tube 310 after entering the groove of the protrusion through the outlet of the upstream evaporation tube 310.

In some embodiments, a thermal insulation layer (not shown) is disposed inside the protection box 350, and the thermal insulation layer is disposed on an inner circumferential wall of the protection box 350 to reduce an external influence of a high temperature generated when the superconducting heating layer 320 is heated.

Referring to fig. 1 and fig. 2, in the present embodiment, a controller 400 is further disposed on the steam generator 300, and the controller 400 is electrically connected to the electrode 340, so as to adjust the current magnitude of the electrode 340 through the controller 400, thereby controlling the start-stop and the power of the superconducting heating layer 320.

A fixing hole (not shown) is formed on an outer side surface of the protection box 350, and the controller 400 is fixed to the protection box 350 through the fixing hole. In some embodiments, the controller 400 and the protection box 350 are connected by a screw, a bolt, or a snap connection.

The steam generator 300 is further provided with a sensor (not shown in the figure) which monitors the temperature of the superconducting heating layer 320 in real time and transmits the detected data to the controller 400, and the controller 400 adjusts the current of the input electrode 340 according to the detected temperature data, so as to control the temperature of the superconducting heating layer 320. In some embodiments, the sensor is a temperature sensor. In some embodiments, the sensor is disposed outside the protection box 350, and the sensor is spaced apart from the superconducting heating layer 320 by a distance such that the sensor can detect a temperature change of a location thereof, and after inputting the temperature change data to the controller 400, the controller 400 calculates a temperature change of the superconducting heating layer 320 according to a distance of the sensor from the superconducting heating layer 320, thereby enabling the controller 400 to control an operation of the steam generator 300.

Referring to fig. 1 to 8, in the present invention, when a user prepares to wash laundry, the laundry is put into a drum 100 through an input port. And the user selects water washing or steam washing according to the requirement. When steam washing is selected, the water inlet means 200 is opened and water flows into the steam generator 300 from the water inlet means 200.

The controller 400 is turned on to supply power to the plurality of electrodes 340, the electrodes 340 transmit current into the plurality of superconducting heating layers 320, the plurality of superconducting heating layers 320 are energized to generate high temperature, and transmit a large amount of heat to the plurality of evaporation tubes 310. When water flows in the evaporation tubes 310, the evaporation tubes 310 receive heat of the superconducting heating layer 320 to heat the water for multiple times, so that the water is fully heated and vaporized into steam, and the vaporization efficiency of the water is improved. The water is transmitted into the drum 100 from the outlet of the downstream-most evaporation pipe 310 after becoming steam, so as to steam-wash the laundry in the drum 100, and effectively clean the dirt, stubborn bacteria, residual laundry detergent and the like on the laundry.

When the sensor detects that the temperature is too high, data is transmitted to the controller 400, and the controller 400 adjusts the current/voltage of the input electrode 340, thereby adjusting the temperature of the superconducting heating layer 320. When the washing machine turns off the steam washing, the controller 400 is turned off to turn off the steam generator 300.

In the present invention, after laundry is loaded in the drum 100 of the washing machine, water enters the inlet of the steam generator 300, and the superconducting heating layer 320 in the steam generator 300 is energized to generate heat. Since the temperature generated by the superconducting heating layer 320 is far higher than the boiling point of water, the temperature is conducted into the evaporation tubes 310, and since the water passes through the plurality of evaporation tubes 310 in sequence, the water in the evaporation tubes 310 is heated and sufficiently vaporized to generate sufficient high-temperature steam. The high temperature steam is delivered into the drum 100 through the outlet of the downstream evaporation tube 310 to steam wash the laundry in the drum 100, so as to effectively clean the stains, stubborn bacteria, residual laundry detergent and the like on the laundry.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A washer/dryer characterized by comprising:

a drum accommodating laundry therein;

the steam generator comprises a plurality of evaporation tubes for water circulation, a superconducting heating layer arranged on each evaporation tube, and a communicating tube communicated with the evaporation tubes; a plurality of said evaporator tubes each extending in a longitudinal direction; the plurality of evaporation tubes are arranged at intervals along the transverse direction; the periphery of the superconducting heating layer circumferentially covers the periphery of the evaporation pipe so as to heat water in the evaporation pipe to form steam; the communicating pipe is communicated with the outlet of the upstream evaporation pipe and the inlet of the downstream evaporation pipe; the inlet of the most upstream evaporation tube is communicated with an external water source, and the outlet of the most downstream evaporation tube is communicated with the roller.

2. The washing/drying machine of claim 1, wherein the superconducting heating layer is formed on the peripheral wall of the evaporation tube by plating of a superconducting material.

3. The washer/dryer according to claim 1, wherein a protection box is provided outside the steam generator, and the plurality of evaporation tubes and the superconducting heating layer are accommodated in the protection box; the inlet of the most upstream evaporation tube and the outlet of the most downstream evaporation tube respectively penetrate out of the side wall of the protection box.

4. The washing/drying machine of claim 3, wherein a bayonet is opened on a side wall of the protection box, and an inlet of the evaporation tube at the most upstream and an outlet of the evaporation tube at the most downstream are respectively penetrated and limited on the bayonet.

5. The washing/drying machine of claim 4, wherein the communication pipe is disposed outside the protection box, a communication opening is opened on a side wall of the protection box in an extending direction of the evaporation pipe, and an outlet of the upstream evaporation pipe and an inlet of the downstream evaporation pipe pass through the communication opening and are communicated with the communication pipe.

6. The washing/drying machine of claim 3, wherein both ends of the superconducting heating layer are sleeved with ring-shaped electrodes.

7. The washing/drying machine of claim 6, wherein a gap is provided between the electrode and an inner sidewall of the protection box.

8. The washer/dryer according to claim 6, wherein a controller is provided on the protective box, the controller being in communication with the electrodes.

9. The washer/dryer according to claim 1, wherein the evaporation tube is made of glass so as to make an inner surface of the evaporation tube smooth.

10. The washer/dryer according to claim 1, wherein said evaporation tube has a diameter of 20mm or less, and said superconducting heating layer has a thickness of 2mm or less in a radial direction thereof.