CN212533453U - Steam generator and washing machine of clothes treatment device - Google Patents

Abstract

The utility model provides a steam generator of clothing processing apparatus, including setting up the generator body in the clothing processing apparatus, the generator body includes: a housing provided with a cavity for containing steam; a thick film heating assembly in a tubular configuration for forming a channel; the channel is communicated with the cavity; liquid water injected into the cavity enters the channel, is heated by the thick film heating component to form steam, and is led out to a clothes containing barrel of the clothes care device; the channel extends along the vertical direction, so that the fouling substances which are easy to adhere to the surface of the channel are separated from the contact with the surface of the channel under the action of the self gravity. The utility model also provides a washing machine. The utility model has the advantages that the thick film heating component has small volume, and the occupied space of the steam generator in the clothes treatment device is reduced; the thick film heating component is of a tubular structure, so that the contact area with liquid water is increased, and the heating effect is improved; the thick film heating assembly extends vertically, and scale is not easy to accumulate on the surface.

Description

Steam generator and washing machine of clothes treatment device

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a clothes treatment device's steam generator, washing machine.

Background

The laundry treating apparatus has additional functions such as adding a steam generator to provide functions of steam scrubbing, steam drying, steam dewrinkling, steam sterilization, etc., in addition to the basic washing function. The heating element of the steam generator adopted by the current clothes treatment device is generally a heating pipe, and the heating pipe has a large size, so that the overall size of the steam generator is larger, the internal space of the washing machine is limited, and the application of the steam generator with the larger size has limitations. Furthermore, water tends to form scale during heating and accumulates on the surface of the heating element.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a steam generator of a clothes treatment device, which is fast in heating and not easy to accumulate scale on the surface of a thick film heating component.

In order to achieve the above purpose, the utility model is realized by the following technical scheme.

A first object of the present invention is to provide a steam generator of a laundry treating apparatus, including a generator body provided in the laundry treating apparatus, the generator body including:

a housing provided with a cavity for containing steam;

a thick film heating assembly in a tubular configuration for forming a channel;

the channel is communicated with the cavity; liquid water injected into the cavity enters the channel, is heated by the thick film heating component to form steam, and is led out to a clothes containing barrel of the clothes care device;

the channel extends along the vertical direction, so that the fouling substances which are easy to adhere to the surface of the channel are separated from the contact with the surface of the channel under the action of the self gravity.

Preferably, the thick film heating assembly is clamped together with the housing to form a housing structure for the generator body.

Preferably, a plurality of first baffles are arranged in the shell, and form a first enclosure wall structure partially enclosing the air outlet of the shell with the inner wall of the shell;

the steam in the cavity contacts the first enclosure wall structure, and after the heat of the steam is conducted through the first enclosure wall structure, liquid water molecules are condensed on the surface of the first enclosure wall structure, so that the liquid water molecules in the steam are separated from the gaseous water molecules, and the liquid water molecules led out from the air outlet are reduced.

Preferably, the generator body is provided with a liquid level sensor to acquire current water level information in the shell.

Preferably, a second baffle plate is arranged in the shell, and a second enclosing wall structure surrounding the outer periphery side of the liquid level sensor is formed on the inner wall of the shell and used for blocking steam in the cavity from contacting the liquid level sensor.

Preferably, at least one flow restriction part is arranged in the shell and used for blocking the falling speed of the water level in the cavity.

Preferably, a first baffle plate arranged on the shell is vertically arranged; the first baffle is opposite to at least one flow limiting part arranged on the shell.

Preferably, the thick film heating assembly is cylindrical.

Preferably, a flange is sleeved on the outer wall of the thick film heating assembly; the thick film heating assembly is connected with the shell through the flange.

Preferably, the generator body is provided with a temperature controlled switch for switching off the power supply to the thick film heating assembly when the temperature of the thick film heating assembly exceeds a temperature threshold.

Preferably, the generator body is provided with a wiring terminal for electrically connecting the electrode end of the thick film heating assembly with a control circuit of the clothes treatment device, and the resistance heating layer of the thick film heating assembly is switched on or off by switching on and off the control circuit.

Preferably, one end of the thick film heating assembly is communicated with the cavity through a sealing tube.

Preferably, the end of the thick film heating assembly remote from the cavity is secured to a sealing cap.

The second purpose of the utility model is to provide a washing machine, which comprises a box body, wherein the steam generator of the clothes treatment device is arranged in the box body; the water inlet of the generator body is connected with a water pipe in the washing machine box body, and the air outlet of the generator body is communicated with the washing machine inner barrel to provide steam for the washing machine inner barrel.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a steam generator heats water through thick film heating element, and it is effectual to heat, and thick film heating element is small, and space utilization is high, is favorable to the miniaturization of the whole size of generator body, reduces steam generator at clothing processing apparatus's occupation space greatly, and the range of application is wide. The thick film heating component is of a tubular structure, so that the contact area with liquid water is increased, and the heating effect is improved; further, thick film heating element is along vertical extension to make thick film heating element surface deposit fall under gravity, and then make the easy scale deposit that attaches to the passageway surface break away from under self action of gravity with the contact of passageway surface, reduce the volume of thick film heating element surface deposit, thick film heating element surface is difficult for the deposition of incrustation scale promptly.

In a preferred scheme, at least one flow limiting part is arranged in the cavity of the shell, and the flow speed of water flow in the cavity is reduced, so that the noise caused by the vortex generated by the water flow flowing into the channel is reduced.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the specification, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a cross-sectional view of a generator body of the present invention;

fig. 2 is a schematic diagram of an explosion structure of the generator body of the present invention;

fig. 3 is a schematic perspective view of a first housing according to the present invention;

fig. 4 is a schematic perspective view of a second housing according to the present invention;

fig. 5 is a schematic perspective view of the thick film heating assembly of the present invention;

fig. 6 is a schematic perspective view of the generator body according to the present invention.

In the figure:

1. a generator body;

10. a housing; 11. a cavity; 12. a first baffle plate; 13. a second baffle; 14. a water inlet; 15. an air outlet; 161. a first current limiting portion; 1611. a first cavity; 1612. a first notch; 162. a second current limiting portion; 1621. a second cavity; 1622. a second notch; 1623. a flow guide channel; 171. a first housing; 172. a second housing;

20. a thick film heating assembly; 21. a channel; 22. a heat conducting plate; 23. an inner insulating dielectric layer; 24. a resistance heating layer; 25. an electrode terminal;

30. a liquid level sensor;

40. a flange plate;

50. a wiring terminal;

60. a sealing tube;

70. a sealing cover;

80. a seal ring;

91. an automatic temperature control switch; 92. a manual temperature control switch;

1001. a first cover body; 1002. a second cover body.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

The utility model provides a steam generator of clothes treatment device, as shown in figure 1, figure 2, figure 5, figure 6, including setting up generator body 1 in the clothes treatment device, generator body 1 includes:

a casing 10 provided with a cavity 11 containing steam;

a thick film heating element 20 in the form of a tubular structure forming a channel 21;

the channel 21 communicates with the cavity 11; liquid water injected into the cavity 11 enters the channel 21, is heated by the thick film heating component 20 to form steam, and is led out to a clothes containing barrel of the clothes care device; specifically, liquid water introduced from the water inlet 14 of the generator body 1 firstly enters the cavity 11, flows into the channel 21 from the cavity 11, the liquid water in the channel 21 contacts the heating end (i.e. the heat conducting plate 22) of the thick film heating assembly 20, the liquid water is heated to form steam, the steam is discharged from the air outlet 15 on the shell 10, and finally enters the clothes containing barrel of the clothes treatment device, and the steam is provided for the clothes in the clothes containing barrel for steam drying, steam decontamination, steam wrinkle removal, steam sterilization and other operations needing steam treatment; in addition, the liquid water in the channel 21 can contact the heating end of the thick film heating assembly 20, so that the contact area of the liquid water and the heating end is increased, and the heating speed is high;

the channel 21 extends along the vertical direction, and the accumulated matters on the surface of the channel 21 fall under the self-gravity, so that the scaling matters which are easy to adhere to the surface of the channel 21 are separated from the contact with the surface of the channel 21 under the self-gravity. The amount of the liquid water in the cavity 11 is gradually reduced along with the change of the liquid water into steam, the water level is reduced, the liquid water flows downwards along the profile of the channel 21, meanwhile, the water remained on the surface of the part of the channel 21 above the water level can gradually flow downwards under the self gravity until the water is converged into the water body at the bottom of the channel 21, water drops accumulated on the surface of the channel 21 due to the reduction of the water level are quickly removed, the accumulated amount of the liquid water on the surface of the channel 21 is reduced, and the amount of scale formed on the surface of the channel 21 is reduced to a certain extent. In addition, the scale generated on the surface of the channel 21 falls under the self-gravity, and the scale on the surface of the thick channel 21 is removed to a certain extent.

In addition, when the casing 10 supplyes liquid water, water enters the cavity 11 from the water inlet 14 of the casing 10 and then flows into the channel 21, and in the process that water flows downwards, the surface of the channel 21 which is vertically arranged can be washed away, the surface of the channel 21 is cleaned to a certain degree, the cleanliness of the surface of the channel 21 is improved, and the influence on the heating performance of the channel 21 due to pollution is reduced.

In one embodiment, the thick film heating assembly 20 is disposed at the bottom of the housing 10, i.e. the channel 21 is located at the bottom of the cavity 11, so that liquid water in the cavity 11 flows into the channel 21 quickly.

Further, the channel 21 is arranged perpendicular to the horizontal plane, which is beneficial for the surface deposits of the channel 21 to fall under the self-gravity.

Further, the tubular structure of the thick film heating assembly 20 may be of various shapes including, but not limited to, square, round, profiled tubular structures. To facilitate the fabrication and assembly of the thick film heating element 20, the thick film heating element 20 is a square or round tubular structure.

Specifically, as shown in fig. 5, the thick film heating assembly 20 includes a heat conducting plate 22, an inner insulating medium layer 23, a resistance heating layer 24, and an outer insulating layer (not shown in the figure) disposed in sequence, wherein the heat conducting plate 22 is located on the side facing the cavity 11; the thick film heating assembly 20 further comprises an electrode terminal 25 electrically connected to the resistance heating layer 24 for electrically connecting to a control circuit of the clothes treatment apparatus, and the resistance heating layer 24 is switched on or off by switching on or off the control circuit, i.e. the heating of the resistance heating layer 24 is turned on or off by switching on or off the control circuit. Thick film heating element 20 circular telegram back resistance heating layer 24 gives out heat, and heat conduction to heat-conducting plate 22 for heat-conducting plate 22 temperature rise to heat the water that contacts with heat-conducting plate 22, in addition, the heat-conducting plate 22 that the temperature rose makes the air temperature rise in passageway 21, and indirect water to in the casing 10 heats. The thermally conductive plate 22 is an insulating member having a high thermal conductivity, and in one embodiment, the thermally conductive plate 22 is a stainless steel substrate. The inner insulating dielectric layer 23 protects the thermally conductive plate 22 from being electrically neutral, which may lead to the water within the housing 10 being electrically charged. The outer insulating layer makes resistance heating layer 24 outside insulating, guarantees the electrical safety. The heat-conducting plate 22 forms the inner wall structure of the tubular structure, i.e. the channel 21; the outer insulating layer forms an outer wall structure of the tubular structure.

In addition, conventional heating components on the market at present comprise a common heating pipe, a quartz heating pipe, a nickel-chromium alloy heating wire and an electromagnetic induction heating component. Wherein, the common heating pipe is easy to form scale, the heating wire is easy to blow, the use is unsafe and the service life is short; the quartz heating pipe is fragile, low in pressure bearing, slow in heat conduction and short in service life; the nickel-chromium alloy heating wire has strict requirements on water quality; the electromagnetic induction heating unit has strong electromagnetic radiation, harms human health, and may cause interference with electronic devices or systems in the laundry treating apparatus, resulting in a reduction in its use performance. A steam generator for clothes treatment device at present, if heating element easily ties the incrustation scale, it is unrealistic and difficult realization to dismantle clothes treatment device and clear up in order to take out steam generator. If the heating element is fragile, it cannot be replaced. And because the clothing processing apparatus is used for processing the clothing, the quality of water is not good for drinking water, and it is costly and unrealistic to control the quality of water because of the requirement of heating element to quality of water. And thick film heating element 20 adopts screen printing technique to print interior dielectric layer 23, resistance heating layer 24, outer insulating layer in proper order on heat-conducting plate 22 and form in this embodiment, and the heat-conduction distance from resistance heating layer 24 to heat-conducting plate 22 is short, therefore the thermal resistance is little, and the thermal response speed is fast, and the heat can in time be conducted away, and whole thick film heating element 20's surface temperature can not be too high, and the safety in utilization is high, and difficult incrustation scale, also not high to the water quality requirement. The thick film heating component 20 is formed by printing an inner insulating medium layer 23, a resistance heating layer 24 and an outer insulating layer on a heat conducting plate 22 by adopting a screen printing technology and sintering at high temperature, and has the advantages of mature and reliable process, small structure and easy cleaning. The shape and size of the thick film heating component 20 can be set according to the requirement, and the thick film heating component is realized by changing the formation and size of the heat conducting plate 22, the design is flexible, the temperature rises quickly during heating, the heating can be carried out by electrifying, and the heating efficiency is high.

In an embodiment, the thick film heating assembly 20 and the housing 10 are clamped together to form a housing structure of the generator body 1, the generator body 1 has a simple and small structure, the occupied space of the generator body 1 in the clothes treatment device is saved, and the generator is suitable for clothes treatment devices with different sizes. Further, the thick film heating assembly 20 is located below the housing 10 to facilitate the rapid flow of liquid water into the channel 21 within the cavity 11 of the housing 10.

In one embodiment, as shown in fig. 1 and 3, a plurality of first baffles 12 are disposed in the casing 10 to form a first enclosure wall structure partially enclosing the air outlet 15 of the casing 10 with the inner wall of the casing 10;

liquid water is the mixture of gaseous state hydrone and liquid hydrone through the steam that thick film heating element 20 heating formed, if direct export from gas outlet 15, then steam humidity is higher, be unfavorable for the drying process of clothing behind the contact clothing, and then set up first wall structure, the first wall structure of steam contact in the cavity 11, the heat of steam is behind first wall structure conduction, liquid hydrone condenses on first wall structure surface, with liquid hydrone and the separation of gaseous state hydrone in the steam, reduce the liquid hydrone that gas outlet 15 exported. The content of liquid water molecules in the steam led out from the air outlet 15 is reduced, the steam may still contain the liquid water molecules, but the amount of the liquid water molecules is reduced, so that the influence of the liquid water molecules on the drying process of the clothes is reduced.

In one embodiment, the generator body 1 is provided with a level sensor 30 to obtain information on the current water level in the housing 10. Specifically, the liquid level sensor 30 is a high-low level liquid level sensor, and a detection end of the liquid level sensor extends into the cavity 11 to detect the water level condition in the housing 10. Further, the liquid level sensor 30 is electrically connected to the alarm module to alarm when detecting that the current water level in the housing 10 reaches the high liquid level threshold or the low liquid level threshold set by the liquid level sensor 30, and remind the user to adjust the water level in the generator body 1. In one embodiment, the liquid level sensor 30 is a three-pin level switch, which is an electrode type liquid level switch having three pole rods with different heights, and when the water in the housing 10 touches the pole rods of the three-pin level switch to conduct electricity and detect a signal, the current water level information in the housing 10 is also output to the user. Further, a second sealing ring 80 is disposed at the assembly position of the three-pin water level switch and the housing 10 for sealing, so as to improve the sealing performance inside the housing 10.

In one embodiment, as shown in fig. 1 and 3, a second baffle 13 is disposed in the housing 10, and forms a second enclosing wall structure surrounding the outer periphery of the level sensor 30 with the inner wall of the housing 10, so as to prevent the vapor in the cavity 11 from contacting the level sensor 30. The steam temperature is high so as not to affect the service life of the liquid level sensor 30. A space is left between the bottom of the second baffle 13 and the inner wall of the housing 10 for liquid water to enter, so that the liquid level sensor 30 can detect the water level. The distance between the bottom of the second baffle 13 and the inner wall of the casing 10 is controlled so as to reduce the influence of the steam on the liquid level sensor 30 while the liquid water is in contact with the liquid level sensor 30.

In one embodiment, as shown in fig. 1, 2 and 4, at least one restriction is disposed in the housing 10 to block the water level falling speed in the cavity 11. When the water is injected from the water inlet 14, and part of the water is located in the cavity 11, after the thick film heating assembly 20 is heated, the liquid water forms steam and is consumed, the water level in the cavity 11 is reduced, in order to further control the flow rate of the water flow in the cavity 11 into the channel 21, at least one flow limiting part is arranged in the shell 10, the flow limiting part is located in the cavity 11, the flow rate of the water flow is blocked to a certain degree, the water flow flowing into the channel 21 from the port of the channel 21 is further reduced, and noise decibel caused by vortex generation when the water flow flows into the port of the channel 21 is further reduced. Specifically, the flow restriction portion and the inner wall of the housing 10 form a cavity, the cavity has a notch for water to flow out, and when the water level in the cavity 11 drops, the water in the cavity flows out through the notch, so that the flow rate is controlled. Furthermore, the number and the size of the notches of the flow limiting part are controlled to control the flow limiting force of the flow limiting part on water flow. Further, the number of the flow restrictors in the cavity 11 is at least two, and the flow restrictor structures at different positions may be the same or different. Specifically, the housing 10 is provided with at least a first flow restriction portion 161 and a second flow restriction portion 162. First restriction 161 includes first appearance chamber 1611, first breach 1612, and when the water level descends in cavity 11, the water in first appearance chamber 1611 flows out and flow to passageway 21 through first breach 1612, and just first breach 1612 restriction first appearance chamber 1611 in the velocity of water outflow, and then the velocity of flow in the control cavity 11 rivers inflow passageway 21. The second flow restriction portion 162 includes the second housing 1621 and two second notches 1622, and the number of the second notches 1622 is increased, so that the water flow flowing speed in the second housing 1621 is increased to a certain extent. Further, the second flow restriction portion 162 further includes two diversion channels 1623 respectively communicating with a second gap 1622, and controlling the speed of the water flowing out of the second cavity 1621 by limiting the inner contour size of the diversion channel 1623.

Further, as shown in fig. 1, the housing 10 is provided with a first baffle 12 which is vertically arranged; the first baffle 12 is opposite to at least one restriction provided to the housing 10. In the process that the liquid water is heated by the thick film heating assembly 20 to form steam which is a mixture of gaseous water molecules and liquid water molecules and flows to the air outlet 15, the mixture of the gaseous water molecules and the liquid water molecules contacts the first enclosing wall structure formed by the first baffle plate 12 and the inner wall of the shell 10, so that the liquid water molecules are condensed to form liquid water when meeting cold and are removed from the mixture of the gaseous water molecules and the liquid water molecules. By arranging the first baffle 12 opposite to the at least one flow restriction part, the mixture of the gaseous water molecules and the liquid water molecules flowing to the gas outlet 15 contacts the flow restriction part to make the liquid water molecules condense when encountering cold, so as to improve the water-vapor separation effect on the mixture of the gaseous water molecules and the liquid water molecules near the gas outlet 15. Further, the first baffle 12 and the sidewall structure corresponding to the position of the restriction are longitudinally offset to leave enough space for the steam to pass through and flow into the air outlet 15. Specifically, the first baffle 12 is disposed opposite to and offset from the first restrictor 161.

Specifically, in one embodiment, as shown in fig. 1 and 2, the housing 10 is rectangular, the water inlet 14 and the air outlet 15 are located on the same side of the housing 10, the water inlet 14 is opposite to the liquid level sensor 30, and the liquid level sensor 30 is fixed on the top wall of the housing 10 away from the water inlet 14. The housing 10 is provided with two flow restrictions, including a first flow restriction 161 and a second flow restriction 162. The first flow limiting part 161 is opposite to the first baffle 12, and the second flow limiting part 162 is opposite to the liquid level sensor 30, so that the first flow limiting part 161 and the second flow limiting part 162 are distributed reasonably, and the flow limiting effect of the flow limiting parts is reduced while the flow is limited. The number of the second notches 1622 of the second flow limiting part 162 corresponding to the position of the liquid level sensor 30 is greater than the number of the first notches 1612 of the first flow limiting part 161, so that the water outlet speed of the second cavity 1621 is increased to a certain extent, and the detection result of the liquid level sensor 30 is prevented from being influenced by too low water outlet speed of the second cavity 1621.

In one embodiment, to facilitate the compact design of the housing 10, the water inlet 14 and the air outlet 15 of the housing 10 are located on the same side, i.e., the water inlet 14 and the air outlet 15 are located on the same side of the housing 10. Further, the water inlet 14 and the air outlet 15 are close to the top of the housing 10, and the distance between the water inlet 14 and the bottom wall of the cavity 11 is increased, so that the cavity 11 contains more liquid water.

In one embodiment, the thick film heating assembly 20 is cylindrical. The profile of the channel 21 is cylindrical, and the inner surface of the channel 21 has no corner, so that the water dirt is prevented from being accumulated and not easy to fall off.

In one embodiment, as shown in fig. 1 and 2, a flange 40 is sleeved on the outer wall of the thick film heating assembly 20; the thick film heating assembly 20 is connected to the housing 10 by means of a flange 40. Further, the thick film heating assembly 20 is sleeved in the flange 40, and a plurality of fixing holes are uniformly distributed on the periphery of the flange 40 so as to be connected with the shell 10 through fasteners.

In one embodiment, as shown in fig. 1 and 6, the generator body 1 is provided with a temperature-controlled switch for cutting off the power supply of the thick film heating element 20 when the temperature of the thick film heating element 20 exceeds a temperature threshold. Further, the temperature control switches include an automatic temperature control switch 91 and a manual temperature control switch 92. The automatic temperature control switch 91 and the manual temperature control switch 92 correspond to the positions of the thick film heating assembly 20. In one embodiment, the automatic temperature control switch 91 is provided with a bimetallic strip capable of bending and deforming, and when the temperature of the bimetallic strip reaches a certain temperature, the bimetallic strip bends and deforms to disconnect the power supply; when the temperature of the bimetallic strip is lower than the temperature lower limit of the bending deformation of the bimetallic strip, the bimetallic strip is electrified after the bending deformation is recovered, and the thick film heating component 20 is started. Further, the automatic temperature control switch is a 140 ℃ automatic temperature control switch; when the temperature of the bimetallic strip reaches 140 ℃, the bimetallic strip bends and deforms to disconnect the power supply. The manual temperature control switch 92 is a manual operation temperature control switch which is turned on or off when the automatic temperature control switch 91 is not turned on due to malfunction or other factors when the temperature of the detection object reaches a set temperature threshold value. If the manual temperature control switch 92 is not turned on when the temperature of the detected object reaches 160 ℃, the automatic temperature control switch is turned off manually. Further, a temperature sensor is arranged in the housing 10 to detect the temperature in the housing 10, when the temperature of the thick film heating assembly 20 exceeds a temperature threshold value, the thick film heating assembly 20 is dried, and when the temperature in the housing 10 is too high, the user is informed to judge whether to manually power off.

In one embodiment, as shown in fig. 1, 2 and 6, the generator body 1 is provided with a connection terminal 50 for electrically connecting the electrode terminal 25 of the thick film heating assembly 20 with the control circuit of the clothes treatment device, and the resistance heat layer 24 of the thick film heating assembly 20 is switched on or off by switching on and off of the control circuit, so as to facilitate the connection of the thick film heating assembly 20.

In one embodiment, as shown in fig. 2 and 6, one end of the thick film heating assembly 20 is communicated with the cavity 11 through a sealing tube 60 to seal the place where the channel 21 is communicated with the cavity 11.

In one embodiment, as shown in fig. 1 and 2, the end of the thick film heating assembly 20 remote from the cavity 11 is secured to a sealing cover 70. The sealing cover 70 wraps one end, far away from the cavity 11, of the channel 21, namely the sealing cover 70 wraps the bottom end of the channel 21, when scale deposited at the bottom of the channel 21 reaches a preset amount, the sealing cover 70 can be taken down from the thick film heating assembly 20, the inner wall of the sealing cover 70 and the inner surface of the channel 21 can be cleaned, and cleaning is convenient. Further, sealed lid 70 is equipped with the draw-in groove, and thick film heating element 20 bottom joint is in the draw-in groove to it is fixed with sealed lid 70, and convenient to detach.

In one embodiment, as shown in fig. 1 and 6, the housing 10 includes a first housing 171 and a second housing 172, and the first housing 171 and the second housing 172 jointly clamp to form the cavity 11. Further, the first housing 171 is detachably coupled to the second housing 172 to facilitate cleaning of the cavity 11. As shown in fig. 1, 3, and 4, the first baffle 12 and the second baffle 13 provided in the casing 10 are provided in the first casing 171, and the restrictor is provided in the second casing 172.

In an embodiment, as shown in fig. 1, 2 and 6, the generator body 1 further includes a fixing member for fixing the temperature controlled switch and the connection terminal. Further, the fixing member is of a housing structure, and the thick film heating assembly 20 passes through the fixing member. Specifically, the fixing member includes a first cover 1001 and a second cover 1002, and the first cover 1001 and the second cover 1002 are clamped together to form a housing structure.

In one embodiment, the housing 10 further has a pressure relief opening (not shown) for opening the pressure relief opening when the pressure inside the housing 10 reaches a predetermined upper limit to reduce the pressure inside the housing 10. Further, the pressure relief opening is provided with a pressure relief valve, when the pressure in the shell 10 exceeds a pressure threshold set by the pressure relief valve, the pressure relief opening is automatically opened to relieve the pressure, and the pressure in the shell 10 is ensured to be below the pressure threshold; when the pressure in the shell 10 is less than or equal to the pressure threshold set by the pressure relief valve, the pressure relief is automatically closed.

Example 2

The utility model provides a washing machine, which comprises a box body, wherein a steam generator of the clothes treatment device is arranged in the box body; the water inlet 14 of the generator body 1 is connected with a water pipe in the box body of the washing machine, and the air outlet 15 of the generator body 1 is communicated with the inner barrel of the washing machine so as to provide steam for the inner barrel of the washing machine. A user starts a steam decontamination mode, a steam drying mode, a steam wrinkle removal mode or a steam sterilization mode of the washing machine, water with a preset amount is introduced into a water inlet 14 of the generator body 1, the thick film heating assembly 20 is started to heat, the water is heated by contacting with the thick film heating assembly 20 to form steam, and the steam is provided for the inner cylinder of the washing machine so as to realize decontamination, drying, wrinkle removal or sterilization functions. As the liquid water is consumed to form steam, the level of the liquid water is reduced, the liquid water falls along the surface of the channel 21, and meanwhile, the water accumulated on the surface of the channel 21 moves downwards along the surface of the channel until the water merges into the water body, so that the water accumulated on the surface of the channel 21 is reduced, and the generation of scale on the surface of the channel is reduced to a certain extent.

The utility model discloses compare prior art, the utility model provides a steam generator heats water through thick film heating element, and thick film heating element is small, and space utilization is high, is favorable to the miniaturization of the whole size of generator body, reduces steam generator at clothing processing apparatus's occupation space greatly, and the range of application is wide. In addition, the thick film heating component is of a tubular structure, so that the contact area with liquid water is increased; further, thick film heating element vertical setting to reduce the volume of deposit on its surface that reduces because of consuming the deposit that the water level reduces.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (14)

1. A steam generator of a laundry treating apparatus, comprising a generator body (1) provided in the laundry treating apparatus, characterized in that the generator body (1) comprises:

a casing (10) provided with a cavity (11) containing steam;

a thick film heating assembly (20) in a tubular configuration for forming a channel (21);

the channel (21) communicates with the cavity (11); liquid water injected into the cavity (11) enters the channel (21), is heated by the thick film heating component (20) to form steam, and is led out to a clothes containing barrel of the clothes care device;

the channel (21) extends along the vertical direction, so that the scaling substances which are easy to adhere to the surface of the channel (21) are separated from the contact with the surface of the channel (21) under the action of the self gravity.

2. Steam generator of a laundry treatment apparatus according to claim 1, characterized in that the thick film heating assembly (20) is clamped together with the casing (10) to form the shell structure of the generator body (1).

3. A steam generator of a clothes treating apparatus according to claim 1, wherein a plurality of first baffles (12) are provided in the casing (10) to form a first enclosing wall structure partially enclosing the air outlet (15) of the casing (10) with the inner wall of the casing (10);

steam in the cavity (11) contacts the first enclosure wall structure, after heat of the steam is conducted through the first enclosure wall structure, liquid water molecules are condensed on the surface of the first enclosure wall structure, so that the liquid water molecules in the steam are separated from the gaseous water molecules, and the liquid water molecules led out from the air outlet (15) are reduced.

4. Steam generator of a laundry treatment apparatus according to claim 1, characterized in that the generator body (1) is provided with a level sensor (30) to obtain information of the current water level inside the casing (10).

5. A steam generator for a laundry treatment apparatus according to claim 4, characterized in that a second baffle (13) is provided in the casing (10) to form a second enclosure wall structure with the inner wall of the casing (10) surrounding the outer periphery of the level sensor (30) for blocking steam in the cavity (11) from contacting the level sensor (30).

6. The steam generator of a laundry treatment apparatus according to claim 1, characterized in that at least one restriction is provided in the housing (10) to block the rate of water level decrease in the cavity (11).

7. The steam generator of a laundry treatment apparatus according to claim 1, characterized in that the casing (10) is provided with a first baffle (12) arranged vertically; the first baffle (12) is opposite to at least one flow limiting part arranged on the shell (10).

8. The steam generator of a laundry treating apparatus according to any one of claims 1-7, wherein the thick film heating assembly (20) is cylindrical.

9. The steam generator of a laundry treatment apparatus according to claim 8, wherein the thick film heating assembly (20) is externally sleeved with a flange (40); the thick film heating assembly (20) is connected to the housing (10) via the flange (40).

10. Steam generator of a laundry treatment apparatus according to any of claims 1-7, characterized in that the generator body (1) is provided with a temperature controlled switch for switching off the power supply to the thick film heating assembly (20) when the temperature of the thick film heating assembly (20) exceeds a temperature threshold.

11. The steam generator of a clothes treating apparatus according to any one of claims 1 to 7, wherein the generator body (1) is provided with a connecting terminal (50) for electrically connecting the electrode terminal (25) of the thick film heating assembly (20) with a control circuit of the clothes treating apparatus, and the resistance heating layer (23) of the thick film heating assembly (20) is switched on or off by switching on and off of the control circuit.

12. The steam generator of a laundry treating apparatus according to any one of claims 1-7, wherein one end of the thick film heating assembly (20) communicates with the cavity (11) through a sealing tube (60).

13. Steam generator of a laundry treatment apparatus according to any one of claims 1-7, characterized in that the end of the thick film heating assembly (20) remote from the cavity (11) is fixed to a sealing cover (70).

14. A washing machine comprising a cabinet, wherein a steam generator of a laundry treating apparatus according to any one of claims 1 to 13 is provided in the cabinet; the water inlet (14) of the generator body (1) is connected with a water pipe in the washing machine box body, and the air outlet (15) of the generator body (1) is communicated with the washing machine inner barrel to provide steam for the washing machine inner barrel.

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