CN214300822U

CN214300822U - Shell structure of steam generator

Info

Publication number: CN214300822U
Application number: CN202022017604.0U
Authority: CN
Inventors: 陈小平; 徐锦锋; 徐士军; 张宝鸽; 杨骏; 牟平
Original assignee: Yunmi Internet Technology Guangdong Co Ltd
Current assignee: Yunmi Internet Technology Guangdong Co Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-09-28
Anticipated expiration: 2030-09-15

Abstract

The utility model provides a shell structure of a steam generator, wherein a cavity is arranged on a shell and used for containing liquid water and/or steam; the side wall of the shell is provided with an opening for vertically installing the heating element of the generator body, wherein the heating element is of a plate-shaped structure, so that the surface of the heating element is not easy to carry accumulated objects. The shell lateral wall is equipped with the opening, with the vertical opening part that is fixed in of heating element for the long-pending thing on heating element surface falls down under self gravity, with the volume that reduces heating element surface long-pending thing, and then the volume of certain degree reduction heating element surface incrustation scale.

Description

Shell structure of steam generator

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a steam generator's shell structure.

Background

The clothes processing device provides functions of steam decontamination, steam drying, steam wrinkle removal, steam sterilization and the like through the steam generator. In the conventional steam generator, the heating element is installed in the cavity inside the housing, and scale is easily generated on the surface of the heating element in the heating process of water contacting the heating element.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a shell structure of a steam generator, which is provided with a shell, wherein a heating element is vertically fixed in the shell, and the surface of the installed heating element is not easy to carry the accumulated objects.

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

The utility model provides a shell structure of a steam generator, which comprises a shell used for forming an outer wall structure of a generator body, wherein the shell is provided with a cavity used for containing liquid water and/or steam; wherein the content of the first and second substances,

the side wall of the shell is provided with an opening for vertically installing the heating element of the generator body, wherein the heating element is of a plate-shaped structure, so that the surface of the heating element is not easy to carry accumulated objects.

Preferably, the opening is provided with a snap projection for snap-fitting the heating element.

Preferably, the outer contour of the opening extends outwards to form a first abutting part so as to abut against the outer periphery side of the heating element.

Preferably, the opening is disposed adjacent the housing bottom wall.

Preferably, an upper portion of a sidewall of the housing, which is provided with the opening, protrudes from the opening.

Preferably, the housing is provided with a fixing portion for being installed in the laundry treating apparatus.

Preferably, the fixing portion and the opening are respectively located on two sides of the housing.

Preferably, the housing comprises a first shell, a second shell; the first shell and the second shell are clamped together to form the cavity.

Preferably, the fixing mode of the first shell and the second shell comprises clamping, buckling and fixing by a fastener.

Preferably, the air outlet and the water inlet of the shell are positioned on the same side of the shell.

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

the utility model provides a pair of steam generator's shell structure, shell side wall are equipped with the opening, with the vertical opening part that is fixed in of heating element for the long-pending thing of leaving on heating element surface falls under self gravity, and the long-pending thing of leaving of difficult carry is with the volume that reduces the long-pending thing of leaving on heating element surface, and then the long-pending volume of the certain degree reduction heating element surface incrustation scale.

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 an exploded view of the thick film heating assembly of the present invention;

fig. 4 is a schematic perspective view of the thick film heating assembly of the present invention;

fig. 5 is a schematic perspective view of a first seal ring according to 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; 111. a first cavity; 112. a second cavity; 12. an opening; 121. clamping the bulges; 122. a first abutting portion; 13. an air outlet; 14. a water inlet; 15. a first housing; 16. a second housing;

20. a thick film heating assembly; 21. a heat conducting plate; 22. an inner insulating dielectric layer; 23. a resistance heating layer; 24. An electrode terminal; 25. a wiring assembly; 251. a wiring member; 252. a ground member; 26. an installation part;

30. a first seal ring; 31. a first card slot; 32. a second card slot;

40. a fixing plate; 41. a notch; 42. a second abutting portion;

50. a liquid level sensor;

60. an automatic temperature control switch;

70. a manual temperature control switch;

80. a second seal ring;

90. a fixed part.

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 shell structure of a steam generator, as shown in fig. 1 and fig. 6, comprising a shell 10 for forming an outer wall structure of a generator body 1, wherein the shell 10 is provided with a cavity 11 for containing liquid water and/or steam; wherein the content of the first and second substances,

the side wall of the housing 10 is provided with an opening 12 for vertically installing the heating element of the generator body 1 in a plate structure, so that the accumulated objects on the surface of the heating element fall under the self gravity, and the accumulated objects are not easy to be hung on the surface of the heating element. The heating element is disposed in the opening 12 and forms a side wall structure of the cavity 11 together with the side wall of the opening 12. The space occupied by the heating element in the cavity 11 is reduced, which is beneficial to the miniaturization design of the generator body 1 and is convenient for the assembly and disassembly of the heating element. Specifically, the liquid water in the cavity 11 contacts the heating end of the heating element and is heated until steam is formed, the steam is guided out from the air outlet 13 of the casing 10 and is guided into a clothes containing drum of the clothes care device through an air pipeline in the clothes treatment device, so that the clothes are subjected to steam drying, steam decontamination, steam wrinkle removal, steam sterilization and other operations requiring steam treatment. The heating element is vertically arranged through the opening 12 of the shell 10, the water level of liquid water is reduced due to consumption, and the accumulated objects on the surface of the heating element fall down under the self gravity; wherein, the accumulated materials on the surface of the heating element comprise accumulated water and formed scale. Along with liquid water becomes steam, the volume of liquid water in cavity 11 reduces gradually, and the water level descends, and liquid water flows downwards along heating element surface, and simultaneously, the remaining water of heating element position surface above the water level can flow downwards gradually under its self gravity until to the water body that is located the cavity 11 bottom of converging, gets rid of fast because of the drop in water on heating element surface that the water level descends and stays, reduces the volume of the liquid water on heating element surface, reduces the volume that the heating element surface formed the incrustation scale to a certain extent. In addition, the scale generated on the surface of the heating element falls under the self-gravity, and the scale on the surface of the heating element is removed to a certain degree.

In addition, when the shell 10 supplements liquid water, water enters the cavity 11 from the water inlet 14 of the shell 10, and the water flow flows downwards, so that the surface of the heating element vertically arranged can be washed, the surface of the heating element is cleaned to a certain degree, and the cleanliness of the surface of the heating element is improved, so that the influence on the heating performance of the heating element due to pollution is reduced.

In one embodiment, the opening 12 is provided with a locking protrusion 121 for locking the heating element and facilitating the mounting and dismounting of the heating element. Further, the outer periphery of the heating element is clamped with the clamping protrusion 121 through the first sealing ring 30, so that the sealing performance of the assembling position of the heating element and the opening 12 is improved while the heating element is detached.

In one embodiment, the peripheral side wall of the cavity 11 corresponding to the position of the heating element is flared in the airflow direction to facilitate upward movement of the airflow and to accelerate the flow of the steam to the air outlet 13 of the housing 10.

In one embodiment, as shown in fig. 1 and fig. 2, the outer contour of the opening 12 extends outward to form a first abutting portion 122 to abut against the outer periphery of the heating element, so as to fix the heating element firmly. Further, the first seal ring 30 provided on the outer peripheral side of the heating element partially abuts against the first abutting portion 122, thereby improving the sealing property and the mounting firmness at the mounting portion of the heating element and the opening 12.

In one embodiment, the opening 12 is located near the bottom wall of the housing 10 to allow the heating element to be located near the bottom wall of the housing 10 to allow the heating end of the heating element to be immersed as much as possible in the liquid water in the cavity 11, thereby allowing the liquid water entering the cavity 11 to be in sufficient contact with the heating end of the heating element.

In one embodiment, an upper portion of a sidewall of the casing 10 provided with the opening 12 protrudes from the opening 12 to block components inside the laundry treating apparatus from contacting the heating element provided at the opening 12.

In one embodiment, the housing 10 is provided with a fixing portion 90 for fixing the generator body 1 provided with the housing 10 in the clothes treatment device. Further, the fixing portion 90 and the opening 12 are respectively located at two sides of the housing 10. When the generator body 1 is fixed in the clothes treatment device through the fixing part 90 of the housing 10, the side of the housing 10 provided with the fixing part 90 is close to the installation surface of the clothes treatment device, and the opening 12 is arranged at the side far from the fixing part 90, so that the heating element arranged at the opening 12 is far from the installation surface of the clothes treatment device, and the heating element can radiate heat.

In one embodiment, as shown in fig. 1, the cavity 11 includes a first cavity 111, a second cavity 112; the first cavity 111 is located below the second cavity 112; the heating element is located at one side of the first cavity 111; the first cavity 111 has a smaller width than the second cavity 112. The housing of the first cavity 111 is flat, so that the longitudinal dimension of the first cavity 111 is large and the transverse dimension of the first cavity is small, thereby increasing the water level of the liquid water introduced into the cavity 11 of the housing 10, allowing more water to contact the heating element, i.e. increasing the contact area between the liquid water and the heating element, and increasing the heating efficiency.

In one embodiment, the width of the first cavity 111 is less than one-half of the width of the second cavity 112, so as to reasonably arrange the size of the inner space of the cavity 11. The second cavity 112 space may be used to temporarily store the steam inside before being discharged outside the casing 10. The second cavity 112 is sufficient for temporarily storing a desired amount of steam, while also being able to contain a portion of liquid water; the size of the second cavity 112 is determined by the amount of steam required for each course of the laundry treating apparatus. By defining the width of the first cavity 111 to be less than half the width of the second cavity 112, a desired amount of liquid water can be contained in the cavity 11, and there is enough space to temporarily store the steam generated in the cavity 11, and further, the liquid water required to generate a desired amount of steam in the cavity 11 can be maintained at a certain level to contact the heating element.

In one embodiment, the height of the first cavity 111 is greater than the height of the second cavity 112. The liquid water entering the cavity 11 enters the second cavity 112 after filling the first cavity 111, and since the width of the first cavity 111 is smaller than that of the second cavity 112, the same amount of water level in the first cavity 111 is higher than that in the second cavity 112, so that the height of the first cavity 111 is increased, and the water level of the liquid water contained in the cavity 11 is increased to a certain extent. Further, the first cavity 111 is expanded in the airflow direction, so that the airflow moves upward to accelerate the steam to the air outlet 13 of the casing 10.

In one embodiment, as shown in fig. 6, the housing 10 is provided with an air outlet 13 and a water inlet 14 disposed at the top of the housing 10. Specifically, the air outlet 13 is arranged at the top of the housing 10, when the steam generated in the cavity 11 rises to the inner wall of the top of the housing 10, the steam can be discharged from the air outlet 13, and the steam can be quickly discharged upwards from the air outlet 13 at the upward movement speed, so that the exhaust is accelerated to a certain extent. If the air outlet 13 is disposed on the side wall of the housing 10, during the steam rising process, part of the steam is discharged after contacting the air outlet 13, and part of the steam still continues to flow upward, so that the exhaust speed of the air outlet 13 is reduced to some extent. When water inlet 14 sets up in shell 10 top, increased the distance between water inlet 14 and the heating element, liquid water from water inlet 14 injection, the speed that descends is faster and faster, has increased the impact force to heating element surface when water contacts thick film heating element 20, improves the washing dynamics. Further, the air outlet 13 and the water inlet 14 of the housing 10 are located on the same side of the housing 10, so that the overall size of the housing 10 can be reasonably designed, and the miniaturization design of the housing 10 is facilitated.

In one embodiment, as shown in fig. 1 and 2, the housing 10 includes a first shell 15, a second shell 16; the first housing 15 and the second housing 16 together clamp the cavity 11. Specifically, the first housing 15 and the second housing 16 are fixed by, but not limited to, snapping, fastening, and the first housing 15 is detachably connected to the second housing 16 to clean the cavity 11.

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 cavity of the housing 10 reaches a predetermined upper limit to reduce the pressure inside the housing 10. Further, a pressure relief valve is arranged at the pressure relief opening, when the pressure in the cavity of the shell 10 exceeds a pressure threshold set by the pressure relief valve, the pressure relief is automatically opened, and the pressure in the cavity of the shell 10 is ensured to be below the pressure threshold; when the pressure in the cavity of 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 steam generator, as shown in fig. 1 to 6, comprising a generator body 1 arranged in a clothes treatment device, wherein the generator body 1 comprises a heating element and a shell 10 of the shell structure of the steam generator; a heating element is secured to the housing 10 with its heating end facing the cavity 11.

In one embodiment, the heating element is a plate-like structure. The heating element with the plate-shaped structure is thin, the contact area of the heating element and the liquid water in the cavity 11 is large, and the heating speed is high.

In one embodiment, the heating element is vertically arranged, and the flowing water flow speed is high because the accumulated water flows downwards quickly when the water level is lowered, and the cleaning effect of the flowing water on the surface of the heating element is weak.

In one embodiment, the heating element is arranged obliquely, diverging outwardly in the direction of flow of the steam. When the water level of the liquid water is reduced, the water flow flows along the heating element until the water flows into the water body, the downward flowing speed of the accumulated water is slightly lower than that of the accumulated water when the heating element is vertically arranged, and the surface of the heating element is cleaned to a certain degree. In addition, the heating element expands outwards along the flowing direction of the steam to accelerate the upward flowing speed of the steam formed by heating the liquid water.

In one embodiment, a first sealing ring 30 is arranged on the outer periphery of the heating element, and the outer periphery of the first sealing ring 30 abuts against the contour of the outer periphery of the opening 12 formed in the shell 10, so as to improve the sealing performance of the assembling position of the heating element and the opening 12. Further, the first sealing ring 30 is provided with a second locking groove 32 to be locked with the locking protrusion 121 provided on the opening 12.

Furthermore, a first locking groove 31 is formed on the inner periphery of the first sealing ring 30, and a second locking groove 32 is formed on the outer periphery of the first sealing ring 30, so that the inner periphery and the outer periphery of the first sealing ring 30 are respectively locked with the periphery of the heating element and the opening 12 formed in the housing 10, the assembly position of the heating element and the opening 12 is sealed, the mounting and dismounting of the heating element are facilitated, and the replacement or maintenance of the heating element is facilitated. Further, the second locking groove 32 of the first sealing ring 30 is locked with the locking protrusion 121 provided on the opening 12 of the housing 10.

In one embodiment, the heating element is a thick film heating assembly 20, and the heating end of the thick film heating assembly 20 has a large surface area and can be heated quickly. Further, the housing 10 is provided with an opening 12; a thick film heating assembly 20 is disposed within the opening 12. Further, as shown in fig. 1 and 2, a first seal ring 30 is provided on the peripheral side of the thick film heating unit 20, and the outer peripheral side of the first seal ring 30 abuts against the contour of the peripheral side of the opening 12. The sealing performance between the peripheral side of the thick film heating assembly 20 and the inner wall of the housing 10 is increased, and liquid water or generated steam in the cavity 11 is prevented from leaking from the installation position of the thick film heating assembly 20. In addition, the first sealing ring 30 has certain flexibility, and in the process that the generator body 1 moves during transportation, installation and the like, the first sealing ring 30 provides certain buffering and anti-seismic performance for protecting the thick film heating assembly 20, so that the thick film heating assembly 20 is protected from being damaged.

In one embodiment, as shown in fig. 1, 2 and 5, the peripheral side of the thick film heating assembly 20 is engaged with the first sealing ring 30 to facilitate the assembly of the thick film heating assembly 20 and the first sealing ring 30. Specifically, the inner side of the first sealing ring 30 is provided with a first clamping groove 31, and the peripheral side of the thick film heating assembly 20 is clamped into the first clamping groove 31, so that the assembly of the thick film heating assembly 20 and the first sealing ring 30 is completed.

In one embodiment, as shown in fig. 1 and 5, the first sealing ring 30 provided around the thick film heating assembly 20 is engaged with the contour of the opening 12 of the housing 10. The thick film heating assembly 20 is installed in the opening 12 of the shell 10 through the first sealing ring 30, the installation is convenient, and the thick film heating assembly 20 is not easy to damage due to the protection of the first sealing ring 30 during installation. Specifically, a second engaging groove 32 is formed on the outer peripheral side of the first sealing ring 30 to engage with an engaging protrusion 121 formed on the opening 12.

In one embodiment, as shown in fig. 3 and 4, the thick film heating assembly 20 includes a heat conducting plate 21, an inner insulating medium layer 22, a resistance heating layer 23, and an outer insulating layer (not shown), which are sequentially disposed, wherein the heat conducting plate 21 is located at a side facing the cavity 11; the thick film heating assembly 20 further includes an electrode terminal 24 electrically connected to the resistance heating layer 23 to electrically connect to a control circuit of the clothes treatment apparatus, and the resistance heating layer 23 is switched on or off by switching on or off the control circuit, that is, the heating of the resistance heating layer 23 is turned on or off by switching on or off the control circuit. Thick film heating element 20 circular telegram back resistance heating layer 23 sends the heat, and heat conduction to heat-conducting plate 21 for heat-conducting plate 21 temperature risees, heats the water that contacts with heat-conducting plate 21, and in addition, heat-conducting plate 21 that the temperature risees makes heat-conducting plate 21 week side ambient air temperature risees, and indirect water to in the shell 10 heats. The heat conducting plate 21 is an insulating member with high thermal conductivity, and in one embodiment, the heat conducting plate 21 is a stainless steel substrate. The inner insulating dielectric layer 22 protects the thermally conductive plate 21 from being electrically neutral to cause water within the housing 10 to become electrically charged. The outer insulating layer makes the outer side of the resistance heating layer 23 insulated from the outside, and ensures the safety of electricity utilization. Further, the first locking groove 31 of the first sealing ring 30 is used for locking the outer periphery of the heat conducting plate 21.

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 assembly has strong electromagnetic radiation, harms human health, and may cause interference to electronic devices or systems in the laundry care device, 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 the screen printing technique to print interior dielectric layer 22, resistance heating layer 23, outer insulating layer in proper order on heat-conducting plate 21 and form in this embodiment, and the heat-conduction distance from resistance heating layer 23 to heat-conducting plate 21 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 22, a resistance heating layer 23 and an outer insulating layer on a heat conducting plate 21 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 21, 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 one embodiment, as shown in fig. 3 and 4, the thick film heating element 20 is provided with a wiring element 25 for electrical connection with the circuit outside the housing 10. Specifically, the wiring member assembly 25 includes a wiring member 251 and a grounding member 252. The wiring member 251 is electrically connected to the electrode terminal 24 of the thick film heating assembly 20, and the wiring member 251 is located outside the casing 10 so as to electrically connect the electrode terminal 24 to the control circuit in the clothes treating apparatus. The grounding member 252 is used to electrically connect the thick film heating element 20 to the ground, so as to prevent the thick film heating element 20 from leaking electricity during operation. The wiring member 251 and the grounding member 252 are both located outside the housing 10, so as to facilitate the electrical connection between the thick film heating assembly 20 and the circuit outside the housing 10. Further, the thick film heating module 20 is provided with a mounting portion 26 for fixing the wiring module 25. Specifically, the mounting portion 26 is a seed nail.

In one embodiment, as shown in fig. 2, the generator body 1 is provided with a temperature controlled switch for cutting off the power supply to the heating element when the temperature of the heating element exceeds a temperature threshold. Specifically, in one embodiment, the heating element is a thick film heating assembly 20, and the temperature controlled switch is configured to power off the thick film heating assembly 20 when the temperature of the thick film heating assembly 20 exceeds a temperature threshold. Further, the temperature control switches include an automatic temperature control switch 60 and a manual temperature control switch 70. The automatic temperature control switch 60 and the manual temperature control switch 70 are fixed on the shell 10 and correspond to the position of the thick film heating assembly 20. In one embodiment, the automatic temperature control switch 60 is provided with a flexible bimetallic strip, and when the temperature of the bimetallic strip reaches a certain temperature, the bimetallic strip is bent and deformed 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 160 ℃ automatic temperature control switch; when the temperature of the bimetallic strip reaches 160 ℃, the bimetallic strip bends and deforms to disconnect the power supply. The manual temperature control switch 70 is a manual operation temperature control switch which is turned on and off when the automatic temperature control switch 60 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 70 is not turned on when the temperature of the detected object reaches 190 ℃, 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.

Further, since the temperature control switch needs to sense the temperature of the thick film heating element 20, the temperature control switch corresponds to the position of the thick film heating element 20, that is, the temperature control switch is disposed outside the side of the thick film heating element 20. In order to facilitate the installation of the temperature controlled switch without affecting the thick film heating assembly 20, as shown in fig. 1 and 2, the temperature controlled switch is detachably connected to the outer wall of one side of the housing 10 through a fixing plate 40. Specifically, the temperature controlled switch is fixed to the fixing plate 40, and the fixing plate 40 is fixed to the housing 10. The fixing plate 40 can be fixed to the housing 10 by snap-fitting, and fastening.

Further, a fixing plate 40 for fixing the temperature controlled switch of the generator body 1 covers the outer surface of the thick film heating element 20. Thick film heating element 20 is including the heat-conducting plate 21, the internal insulation dielectric layer 22, the resistance heating layer 23, the outer insulating layer that set gradually, and heat-conducting plate 21 is towards cavity 11, and then the outer insulating layer is outside towards shell 10, and in order to protect thick film heating element 20 simultaneously, avoid because of the outer insulating layer appears damaging the potential safety hazard that leads to the electric leakage when exposing, cover thick film heating element 20 surface through fixed plate 40. Further, since the thick film heating element 20 is further provided with the wiring element 25, in order to facilitate the electrical connection between the wiring element 25 and the circuit outside the housing 10, the fixing plate 40 is provided with the notch 41, so that the wiring member 251 and the grounding member 252 of the wiring element 25 extend out of the housing 10.

Further, the fixing plate 40 is provided with a second abutting portion 42 for abutting against a surface of the thick film heating element 20 away from the cavity 11, so as to stabilize the installation of the thick film heating element 20.

In one embodiment, as shown in fig. 2, the generator body 1 is provided with a level sensor 50 to obtain information on the current water level in the housing 10. Specifically, the liquid level sensor 50 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 50 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 50, and remind the user to adjust the water level in the generator body 1. In one embodiment, the liquid level sensor 50 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 property inside the housing 10.

Example 3

The utility model provides a washing machine, which comprises a box body, wherein the generator body 1 of a steam generator 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 13 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, meanwhile, a heating element is started to heat, the water is heated by contacting with the heating element to form steam, and the steam is provided for the inner drum of the washing machine, so that the decontamination function, the drying function, the wrinkle removal function or the sterilization function is realized. The liquid water is consumed as steam is formed, the water level of the liquid water is reduced, the liquid water falls along the surface of the heating element, and meanwhile, the water accumulated on the surface of the heating element moves downwards along the surface of the heating element until the water merges into the water body, so that the water accumulated on the surface of the heating element is reduced, and the generation of scale on the surface of the heating element is reduced to a certain extent.

Compared with the prior art, the utility model provides a pair of steam generator's shell structure, the shell lateral wall is equipped with the opening, with heating element vertical be fixed in the shell for heating element surface area stays the thing and falls down under gravity, and then reduces the volume of remaining of heating element surface incrustation scale to a certain extent.

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

1. A shell structure of a steam generator, comprising a shell (10) for forming an outer wall structure of a generator body (1), characterized in that the shell (10) is provided with a cavity (11) for containing liquid water and/or steam; wherein the content of the first and second substances,

the side wall of the shell (10) is provided with an opening (12) for vertically installing the heating element of the generator body (1) in a plate-shaped structure, so that the surface of the heating element is not easy to carry accumulated objects.

2. A steam generator housing structure according to claim 1, characterized in that the opening (12) is provided with a snap-in projection (121) for snap-in engagement with the heating element.

3. A steam generator housing structure according to claim 1, wherein the opening (12) is outwardly contoured to form a first abutment (122) against the outer peripheral side of the heating element.

4. A steam generator shell structure according to claim 1, characterized in that the opening (12) is provided near the bottom wall of the outer shell (10).

5. A steam generator shell structure according to claim 4, characterized in that the upper portion of the side wall of the outer shell (10) provided with the opening (12) protrudes from the opening (12).

6. A housing structure of a steam generator according to claim 1, characterized in that the housing (10) is provided with a fixing portion (90) for being installed in a laundry treating device.

7. A steam generator shell structure according to claim 6, wherein the fixing portion (90) and the opening (12) are respectively located at both sides of the outer shell (10).

8. A steam generator shell structure according to claim 1, characterized in that the outer shell (10) comprises a first shell (15), a second shell (16); the first shell (15) and the second shell (16) are clamped together to form the cavity (11).

9. The steam generator housing structure according to claim 8, wherein the first housing (15) and the second housing (16) are fixed by a snap-fit, and fastener.

10. A steam generator housing structure according to claim 1, characterized in that the air outlet (13) and the water inlet (14) of the housing (10) are located on the same side of the housing (10).